还剩24页未读，
继续阅读
所属成套资源：高考英语一轮复习高分突破练习 （含解析）
成套系列资料，整套一键下载
高考英语一轮复习高分突破练习专题24 阅读理解之说明文类（含解析）
展开
这是一份高考英语一轮复习高分突破练习专题24 阅读理解之说明文类（含解析），共27页。试卷主要包含了secnd等内容，欢迎下载使用。
专题24 阅读理解之说明类
《• •》
考向分析
所谓说明文，就是指研究自然科学与技术的文章。说明文是对事物或事理进行客观说明的一种文体，它以说明为主要表达方式，通过解说事物或阐明事理，达到教人以知识的目的，在结构上往往采用总分、递进等方式按一定的顺序（如时间、空间、从现象到本质）进行说明。说明文的特点是客观、简练、语言准确、明了，文章很少表达作者的感情倾向。阅读说明文的重点在于读懂它说明的事物或事理，了解事物的性质、构造、成因、功能等，了解事理的含意、特点等。最近五年，说明文的出现变化不大，一直很稳定，选材通常是各学科的前沿问题；高科技领域的科研成果；人们比较关心的社会问题；人文方面的经典。由于阅读理解题的设置采用渐进式，即由简到难的方式，因此说明文是高考试卷中阅读理解题中相对比较难的，通常后置。阅读理解试题的中要之一是考查学生对词汇和句式的掌握。说明文的词汇和句式的运用较别的体裁的文章难度更大。词汇运用灵活，同一词的不同词性的用法交替出现，未列入考纲的生词较多，通常达到了4-5%。不过考生可以通过说明文的语言特点来帮助理解语篇，例如，同位语、下定义、解释、举例、同义词、反义词、上下义词以及标点符号（如破折号、冒号都有表示解释和说明）等。
考点导航
01 细节理解题
说明文中考查的细节理解题大致与记叙文相似。命题区域都有其共同点：⑴在列举处命题，如用first(1y)、second(1y)、third(1y)finally、not only...but also...、then、in addition等表示顺承关系的词语列举出事实。试题要求考生从列举出的内容中选出符合题干要求的答案项。⑵在例证处命题，句中常用由as、such as、for example、for instance等引导的短语或句子作为例证，这些例句或比喻就成为命题者设问的焦点。⑶在转折对比处命题，一般通过however、but、yet、in fact等词语来引导。对比用unlike、until、not so much…as等词语引导，命题者常对用来对比的双方属性进行考查。⑷在比较处命题，无端的比较、相反的比较、偷换对象的比较，经常出现在干扰项中，考生要标记并且关注到原文中的比较，才能顺利地排除干扰。⑸在复杂句中命题，包括同位词、插入语、定语、从句、不定式等，命题者主要考查考生对句子之间的指代关系和语法关系。
细节类问题一般都能在原文中找到出处，只要仔细就可以在文中找到答案。但正确的选择项不可能与阅读材料的原文完全相同，而是用不同的语句成句型表达相同的意思。
02 语意猜测题
说明文为了把自然规律，事物的性质等介绍清楚或把事理阐述明白，因此学术性强的生词较多，所以常进行生词词义判断题的考查。命题方式多以the underlined part … in paragraph…refers to…或what does the underlined word mean? 或what is the meaning of the underlined word?为设问方式。解题时考生应认真阅读原文，分析其对某些科学原理是如何定义、如何解释的，并以此为突破口抽象概括出生词词义。也可以通过上下文来猜测某个陌生词语的语意。或者找出某个词语在文章中的同义词。要注意破折号、同位语从句、定语从句、插入语等具有解释、说明作用的语言成分。说明文在阐述说明对象时易发生动作变换、人称转变的现象，这类题目常以it，they，them 等代词为命题点，因此考生要根据上下文语境，认真阅读原文，分析动作转换背景，弄清动作不同执行者，以便准确判断代词的其实际指代对象。
03 主旨大意题
说明文常用文章大意判断题考查考生对通篇文意的理解。即对文章的主题或中心意思的概括和归纳。主要考查考生对文章的整体理解能力。命题形式常以This passage mainly talks about ____. What is the main idea of the passage? 为设问方式。
答题时首先阅读题干，掌握问题的类型，了解试题题干以及各个选项所包含的信息，然后有针对性地对文章进行扫读，对有关信息进行快速定位，再将相关信息进行整合、甄别、分析、对比，有根有据地排除干扰项，选出正确答案。
04 判断推理题
这种试题常以(1)the passage is intended to...(2) the author suggests that...(3) the story implies that…(4) which point of view may the author agree to?(5) from the passage we can conclude that...(6) the purpose of the passage is to...为设问方式。这种的答案在原文中不是直接就能找到的，它要求考生进行合理的推断。如因果关系，文中的某些用词、语气也往往具有隐含意义，考生要将这种含义读出来。说明文常出现图示判断题，这种试题可以事物之间正确的依赖关系为命题点，要求考生判断其正确的流程顺序相互关系等。考生一定要认真阅读原文，并对照原文介绍的情况，弄清图示的差异，根据题干需要最终做出正确判断。如：动物介绍性说明文常出现动物能力判断题，考查考生对特定动物所具有能力的判断。解题时考生应认真阅读原文对动物形态活动能力的判断，了解动物的生存环境和是否会使用工具，是否善于爬行、飞翔和游泳等。观点态度题也是判断推理题考查的内容之一。说明文的对象为客观事实，但设题以议论的表达方式抒发对该说明对象的想法。如对某种新发明的赞赏，或对某个事物的批判。这类题目常见的题干表达方式有what was the author’s attitude towards ...? 等。
高考阅读理解中，说明文为主要体裁之一。高考阅读理解题的设问主要围绕以下四方面：细节事实题、主旨大意题、推理判断题、猜测词义题。其中，说明文主要以细节事实、主旨大意和猜测词义三方面问题为主。
一、词义猜测类
阅读理解题中常要求学生猜测某些单词或短语的意思。历年英语高考题中均有此类题目，有的文章尽管没有专门设题，但由于文章中常常出现生词，因此，词义的猜测还是贯穿在文章的阅读理解之中。解这类题目一般是通过上下文去理解或根据构词法去猜测。判断一个单词的意思不但离不开句子，而且还需要把句子放在上下文中，根据上下文提供的线索加以猜测。运用构词法,语境等推测关键词义，可以根据以下几种方法猜测：
（一）内在逻辑关系
根据内在逻辑关系推测词义是指运用语言知识分析和判断相关信息之间存在的逻辑关系，然后根据逻辑关系推断生词词义。
1、通过同义词和反义词的关系猜词
通过同义词猜词，一是要看由and或or连接的同义词词组，如happy and gay，即使我们不认识gay这个词，也可以知道它是愉快的意思。这是高三册第八单元阅读第五段的句子：
二是看在进一步解释的过程中使用的同义词，如Man has known something about the planets Venus，Mars，and Jupiter with the help of spaceships. 此句中的Venus（金星）,Mars（火星）,Jupiter（木星）均为生词，但只要知道planets就可猜出这几个词都属于＂行星＂这一义域.通过反义词猜词，一是看表转折关系的连词或副词，如but，while，however等；二是看与not搭配的或表示否定意义的词语，如：He is so homely, not at all as handsome as his brother.根据not at all...handsome我们不难推测出homely的意思，即不英俊，不漂亮的意思。
1、根据因果关系猜测词义
通过因果关系猜词，首先是找出生词与上下文之间的逻辑关系，然后才能猜词。有时文章借助关联词（如because，as，since，for，so，thus，as a result，of course，therefore等等）表示前因后果。例如：
You shouldn’t have blamed him for that, for it wasn’t his fault. 通过for引出的句子所表示的原因（那不是他的错），可猜出blame的词义是＂责备＂。
2、通过定义或释义关系来推测词义
例如：But sometimes, no rain falls for a long, long time. Then there is a dry period, or drought.
从drought所在句子的上文我们得知很久不下雨，于是便有一段干旱的时期，即drought，由此可见drought意思为＂久旱＂，＂旱灾＂。而a dry period和drought是同义语。这种同义或释义关系常由is，or，that is，in other words，be called或破折号等来表示。
通过句法功能来推测词义
例如：Bananas, oranges, pineapples, coconuts and some other kind of fruit grow in warm areas.假如pineapples和coconuts是生词，我们可以从这两个词在句中所处的位置来判断它们大致的意思。从句中不难看出pineapples, coconuts和bananas, oranges是同类关系，同属fruit类，因此它们是两样水果，准确地说，是菠萝和椰子。
3、通过描述猜词
描述即作者为帮助读者更感性地了解某人或某物而对该人或该物作出的外在相貌或内在特征的描写。例如The penguin is a kind of sea bird living in the South Pole. It is fat and walks in a funny way. Although it cannot fly，it can swim in the icy water to catch the fish.从例句的描述中可以得知penguin是一种生活在南极的鸟类.后面更详尽地描述了该鸟类的生活习性。
（二）外部相关因素
外部相关因素是指篇章（句子或段落）以外的其他知识，有时仅靠分析篇章内在逻辑关系无法猜出词义。这时，就需要运用生活经验和普通常识确定词义。例如：The snakes lithered through the grass.根据有关蛇的生活习性的知识，我们可以推断出slither词义为＂爬行＂。
（三）构词法
在阅读文章时，我们总会遇上一些新词汇，有时很难根据上下文来推断其词意，而它们对文章的理解又有着举足轻重的作用，此时，如掌握了一些常用的词根,前缀,后缀,合成等构词法知识，这些问题便不难解决了。
4、根据前缀猜测词义
例如：He fell into a ditch and lay there, semi-conscious, for a few minutes.根据词根conscious（清醒的，有意识的），结合前缀semi（半，部分的，不完全的），我们便可猜出semiconscious词义＂半清醒的，半昏迷的。＂I’m illiterate about such things.词根lit-erate意为＂有文化修养的，通晓的＂，前缀il表示否定，因此illiterate指＂一窍不通，不知道的＂。
5、根据后缀猜测词义
例如：Insecticide is applied where it is needed.后缀cide表示＂杀者，杀灭剂＂，结合大家熟悉的词根insect（昆虫），不难猜出insecticide意为＂杀虫剂＂。Then the vapor may change into droplets.后缀let表示＂小的＂，词根drop指＂滴，滴状物＂。将两个意思结合起来，便可推断出droplet词义＂小滴，微滴＂。
6、根据复合词的各部分猜测词义
例如：Growing economic problems were high-lighted by a slowdown in oil output. Hightlight或许是一个生词，但是分析该词结构后，就能推测出其含义。它是由high（高的，强的）和light（光线）两部分组成，合在一起便是＂以强光照射，使突出＂的意思。Bullfight is very popular in Spain. Bull（公牛）和fight（打，搏斗）结合在一起，指一种在西班牙颇为流行的体育运动—斗牛。
二、主旨大意类
主旨大意类主要测试学生对文章全面理解和概括的能力，提问的内容可能是全文的大意，也可能是某段的段落大意，一般不易在文中直接找到答案。怎样把握主旨大意题呢？通常有以下几种方法：
（一）阅读文章的标题或副标题
文章的标题是一篇文章的题眼，通过阅读标题或副标题可以迅速把握文章的主旨大意。
（二）寻找文章的主题句
分析篇章结构，找出文章主题。在许多情况下，尤其在阅读说明文和议论文时，根据其篇章特点我们可以通过仔细阅读短文的第一句或第二句，即文章的主题句来归纳出文章的主题.若短文由若干段组成，除仔细阅读第一段的首句外，还须仔细阅读每一段的第一句，即段落中心。通常文章的中心思想包含在文章的首句，有时也在文章的末句，其他句子都是用来说明和阐述主题句。因此，在确定文章的中心思想时，要求学生重视阅读文章的首句和末句。但也有一些文章，中心思想常常贯穿在全文中，因此要求学生综观全文，对段落的内容要融会贯通，对文章透彻理解后归纳总结。主题句的特点是：1. 相对于其他句子，它表达的意思比较概括；2. 主题句一般结构简单；3. 段落中其他句子必定是用来解释，支撑或发展主题句所表达的思想的。
总之，为提高阅读理解能力，在阅读时应抓中心思想，作者意图及关键词语，运用联想、比较、归纳、推测等方法，得出最佳结论，选择最佳答案，不能主观臆测，把自己的观点强加进去，与文章的观点混为一谈。经过长时间有计划，有目的的系统训练，使学生加快阅读速度，提高阅读的正确性，使两者有机地统一起来，以提高学生阅读英语和运用英语进行交际的能力，为继续学习和运用英语切实打好基础.阅读是一种综合性很强的语言实际活动。我们只有进行大量的课内外阅读，掌握一定的阅读，正确运用阅读方法，才能有效地提高阅读理解能力。
【分析】
As a popular subject of study among evolutionary ecologists, three-spined stickleback is known for their different shapes, sizes, and behaviors—they can even live in both seawater and freshwater, and under a wide range of temperatures. But what makes that?
The researchers tracked six populations of the fish before and after seasonal changes to their environment, using genome sequencing. Seasonal changes result in great changes in habitat structure and balance of salt and freshwater, and only those fish able to tolerate these rapid changes survive into the next season.
“These changes probably resemble the habitat shifts experienced by stickleback populations during the past 10,000 years.” says Professor Barrett “We hope to gain insight into the genetic changes that may have resulted from natural selection long in the past.”
Remarkably, the researchers discovered the evidence of genetic changes driven by the seasonal shifts in habitats, which mirrored the differences found between long-established freshwater and saltwater populations. “These genetic changes occurred in independent populations over a single season, highlighting just how quickly the effects of natural selection can be detected,” says Professor Barrett, “The findings suggest that we may be able to use the genetic differences to predict how populations may adapt to environment.”
The research emphasizes the importance of studying species in dynamic environments to gain a better understanding of how natural selection operates. In further research, they plan to investigate how repeatable the observed genetic changes are, by testing whether they show up year after year. Doing so would demonstrate their ability to reliably forecast the evolutionary future of these populations.
1. What does the underlined word “that” refer to in Paragraph l?
A. Stickleback is under a wide range of temperatures.
B. Stickleback is popular with evolutionary ecologists.
C. Stickleback can adapt to different living conditions.
D. Stickleback has different shapes, sizes, and behaviors.
2. What is Paragraph 2 mainly about?
A. The difficulties of the research. B. The purpose of the research.
C. The background of the research. D. The methods of the research.
3. What is the main reason for stickleback's survival?
A. Habitat shifts. B. Genetic change.
C. Seasonal changes. D. Independent populations.
4. Why will scientists study the repetition of the gennetic changes?
A. To know what natural selection is.
B. To study specices in dynamic environments.
C. To test the reliablity of the present discoveries.
D. To forecast the evolutionary future of certain species.
【答案】1. C 2. D 3. B 4. D
【解析】这是一篇说明文。文章主要说明了三刺鱼可以适应不同的生活条件，研究人员对此展开研究，发现三刺鱼生存的主要原因是遗传变化，这一研究发现可以预测某些物种的未来进化。
1. 词句猜测题。根据第一段中“As a popular subject of study among evolutionary ecologists, three-spined stickleback is known for their different shapes, sizes, and behaviors—they can even live in both seawater and freshwater, and under a wide range of temperatures.”可知，作为进化生态学家的一个热门研究课题，三刺鱼以其不同的形状、大小和行为而闻名——它们甚至可以在海水和淡水中生活，并在大范围的温度下生活，故第一段最后一句对三刺鱼可以适应不同的生活条件提出疑问，故画线词指的是“三刺鱼可以适应不同的生活条件”。故选C。
2. 主旨大意题。根据第二段“The researchers tracked six populations of the fish before and after seasonal changes to their environment, using genome sequencing. Seasonal changes result in great changes in habitat structure and balance of salt and freshwater, and only those fish able to tolerate these rapid changes survive into the next season.(研究人员通过基因组测序，跟踪了6个鱼类种群在季节变化前后的环境变化。季节的变化导致了栖息地结构和盐淡水平衡的巨大变化，只有那些能够忍受这些快速变化的鱼类才能存活到下一个季节)”可知，第二段主要讲的是研究方法。故选D。
3. 细节理解题。根据第三段““These changes probably resemble the habitat shifts experienced by stickleback populations during the past 10,000 years.” says Professor Barrett “We hope to gain insight into the genetic changes that may have resulted from natural selection long in the past.”(“这些变化可能类似于过去一万年棘鱼种群所经历的栖息地变化。” Barrett说，“我们希望深入了解可能是长期以来自然选择导致的基因变化。”)”可知，三刺鱼生存的主要原因是基因变化。故选B。
4. 细节理解题。根据最后一段中“In further research, they plan to investigate how repeatable the observed genetic changes are, by testing whether they show up year after year. Doing so would demonstrate their ability to reliably forecast the evolutionary future of these populations. (在进一步的研究中，他们计划研究观察到的基因变化的可重复性，通过测试它们是否年复一年地出现。这样做将证明它们有能力可靠地预测这些种群的未来进化)”可知，科学家研究基因变化的重复是为了预测某些物种的未来进化。故选D。
检测训练
1、
As aging population gets bigger and dementia (老年痴呆症) more common，more families are struggling with a complex question: How do you support a loved one with dementia, especially when you have a full-time job and several kids?
Reg Urbanowski may have an answer to this pressing issue: ROBOTS.
He and his team managed to develop a new type of robots named TP robots. Looking like stand-up vacuum cleaners attached to an iPad, they can be activated remotely via a smartphone and guided remotely by a controller app similar to the way a mouse is used on a desktop computer. All possess audio and visual communication capabilities, allowing the operator to be “in the room” to interact with Mom or Dad.
He believes that caregivers and family members can use a TP robot to “look in” on people with mild dementia. He says, “TP robots provide an effective solution for minimizing caregiver burden, especially for those who have career or other out-of home activities.”
Urbanowski and his team have conducted a study that involves providing TP robots for 15 Manitoba families. These robots are programmed to provide reminders of necessary daily routine like turning off the gas, taking medicine and having dinner. They will also help ensure patients are getting the exercise they need to maintain their health and well-being.
Erin Crawford, Program Director with the Alzheimer Society of Manitoba, says she has faith that TP robots will prove beneficial, particularly when it comes to reminding people with dementia to do certain things at certain times. “It means that family members that can’t be there, for whatever reason, know that those things are till happening,” she says.
5. What can we infer about TP robots from Paragraph 3?
A. It’s easy to operate. B. It can clean the room.
C. It's convenient to carry. D. It can be used on a computer.
6. How will TP robots help those with dementia?
A. By having dinner with them. B. By turning off the gas for them.
C. By doing activities with them. D. By reminding them to take pills.
7. What’s Erin Crawford’s attitude to the future of TP robots?
A. Optimistic. B. Cautious. C. Doubtful. D. Critical.
8. What is the main idea of the text?
A. TP robots provide a new solution to dementia.
B. TP robots help to take care of dementia patients.
C. Caregivers of dementia will be replaced by TP robots.
D. Urbanowski and his team are developing a new robot.
【答案】5. A 6. D 7. A 8. B
【解析】这是一篇说明文。文章主要讲述了Reg Urbanowski和他的团队一起发明了一种新型的机器人，用于解决如何照顾患有老年痴呆的家人，有了这种机器人，即使没法陪伴病人身边，这些机器人也可以提醒病人做必要的日常工作。
5. 推理判断题。由第三段中的“Looking like stand-up vacuum cleaners attached to an iPad, they can be activated remotely via a smartphone and guided remotely by a controller app similar to the way a mouse is used on a desktop computer. All possess audio and visual communication capabilities, allowing the operator to be “in the room” to interact with Mom or Dad. (看起来像是连在iPad上的立式真空吸尘器，它们可以通过智能手机远程启动，并由一个类似于台式电脑鼠标使用方式的控制器应用程序远程引导。所有设备都具有音频和视频通信能力，允许操作员“在房间里”与爸爸妈妈互动)”可知，这个机器人可以通过手机远程启动，通过一个软件进行操作，具有音频和视频通信能力，可得出TP机器人便于操作。故选A项。
6. 细节理解题。由倒数第二段中的“These robots are programmed to provide reminders of necessary daily routine like turning off the gas, taking medicine and having dinner. (这些机器人被编程，来提供必要的日常生活提醒，比如关闭煤气，吃药和吃饭)”可知，TP机器人可以提醒痴呆症患者吃药。故选D项。
7. 推理判断题。由最后一段中的“Erin Crawford, Program Director with the Alzheimer Society of Manitoba, says she has faith that TP robots will prove beneficial, particularly when it comes to reminding people with dementia to do certain things at certain times. (马尼托巴州阿尔茨海默症协会的项目主管Erin Crawford说，她相信TP机器人将被证明是有益的，特别是在提醒痴呆症患者在某些时候做某些事情时)”可知，Erin Crawford相信TP机器人将被证明是有益的，可得出她对TP机器人的未来发展前景持乐观的态度。故选A项。
8. 主旨大意题。由第一段“As aging population gets bigger and dementia (老年痴呆症) more common，more families are struggling with a complex question: How do you support a loved one with dementia, especially when you have a full-time job and several kids? (随着老龄化人口的增加和痴呆症的日益普遍，越来越多的家庭正在为一个复杂的问题而挣扎：你如何养活一个患有痴呆症的爱人，尤其是当你有一份全职工作和几个孩子的时候？)”，第二段“Reg Urbanowski may have an answer to this pressing issue: ROBOTS. (Reg Urbanowski也许能回答这个紧迫的问题：机器人)”，第四段中的“He believes that caregivers and family members can use a TP robot to “look in” on people with mild dementia. (他相信看护者和家庭成员可以使用TP机器人来“看望”轻度痴呆症患者)”和下文对TP机器人的描述可知，文章主要讲述了Reg Urbanowski和他的团队一起发明了一种新型的机器人（TP机器人），用于解决如何照顾患有老年痴呆的家人，有了这种机器人，即使没法陪伴病人身边，这些机器人也可以提醒病人做必要的日常工作，可知本文主要围绕着TP机器人可以帮忙照顾患有老年痴呆的病人展开，B项“机器人帮助照顾痴呆病人”符合文意。故选B项。
2、
According to a recent study in the Journal of Consumer Research, both the size and consumption habits of our eating companions can influence our food intake. And contrary to existing research that says you should avoid eating with heavier people who order large portions(份), it's the beanpoles with big appetites you really need to avoid.
To test the effect of social influence on eating habits, the researchers conducted two experiments. In the first, 95 undergraduate women were individually invited into a lab to ostensibly(表面上)participate in a study about movie viewership. Before the film began, each woman was asked to help herself to a snack. An actor hired by the researchers grabbed her food first. In her natural state, the actor weighed 105 pounds. But in half the cases she wore a specially designed fat suit which increased her weight to 180 pounds.
Both the fat and thin versions of the actor took a large amount of food. The participants followed suit, taking more food than they normally would have. However, they took significantly more when the actor was thin.
For the second test, in one case the thin actor took two pieces of candy from the snack bowls. In the other case, she took 30 pieces. The results were similar to the first test: the participants followed suit but took significantly more candy when the thin actor took 30 pieces.
The tests show that the social environment is extremely influential when we're making decisions. If this fellow participant is going to eat more, so will I. Call it the “I’ll have what she's having” effect. However, we'll adjust the influence. If an overweight person is having a large portion, I'll hold back a bit because I see the results of his eating habits. But if a thin person eats a lot, I'll follow suit. If he can eat much and keep slim, why can't I?
12. What is the recent study mainly about?
A. Food safety. B. Movie viewership.
C. Consumer demand. D. Eating behavior.
13. What does the underlined word “beanpoles” in paragraph 1 refer to?
A. Big eaters. B. Overweight persons.
C. Picky eaters. D. Tall thin persons.
14. Why did the researchers hire the actor?
A. To see how she would affect the participants.
B. To test if the participants could recognize her.
C. To find out what she would do in the two tests.
D. To study why she could keep her weight down.
15. On what basis do we “adjust the influence” according to the last paragraph?
A. How hungry we are. B. How slim we want to be.
C. How we perceive others. D. How we feel about the food.
【答案】12. D 13. D 14. A 15. C
【解析】本文是说明文。最近的研究表明：我们的饮食伙伴的大小和消费习惯都会影响我们的食物摄入量。文章详述了这个实验的过程。
12.细节理解题。根据第一段中的“According to a recent study in the Journal of Consumer Research, both the size and consumption habits of our eating companions can influence our food intake”可知，根据消费者研究杂志最近的一项研究，我们的饮食伙伴的大小和消费习惯都会影响我们的食物摄入量。因此这项研究是关于饮食行为的。故选D。
13.词义猜测题。根据前半句“And contrary to existing research that says you should avoid eating with heavier people who order large portions（份）”可知，现有的研究认为：你应该避免和体重较重、点大份饭菜的人一起吃饭。后半句认为，你真正应该避免的是the beanpoles with big appetites。由contrary to可推断出，画线词和heavier people（超重的人）相反，结合选项，D选项（瘦瘦高高的人）正好和heavier people正好相反。故选D。
14.推理判断题。根据第二段的“To test the effect of social influence on eating habits, the researchers conducted two experiments”可知， 为了测试社会影响对饮食习惯的影响，研究人员进行了两个实验。根据倒数第三段的内容可知，在两个实验中，胖的和瘦的演员都吃了大量的食物。参与者也照做，吃的食物比平常多。 然而，当演员是瘦的时候，参与者们服用的食物更多。由此推断，研究人员雇用演员是为了看看她如何影响参与者。故选A。
15.推理判断题。根据最后一段中的“If an overweight person is having a large portion, I’ll hold back a bit because I see the results of his eating habits. But if a thin person eats a lot, I’ll follow suit. If he can eat much and keep slim, why can’t I? ”可知，如果一个超重的人吃很大一份，我会忍住一点，因为我看到了他饮食习惯的结果。但如果一个瘦的人吃很多，我会跟着做。如果他吃得多保持苗条，为什么我不能呢？ 因此推断我们是根据我们对他人的看法（即：如何看待他人）来调整影响的。故选C。
3、
Calling someone a “birdbrain” is considered rude. It implies that someone has a small brain and thus is not smart. A new study found that the expression doesn’t do birds justice either: Birds’ brains are much bigger than we thought — at least compared to their small bodies.
An international team of 37 scientists measured the brain volume (脑容量) of hundreds of dinosaurs and extinct birds by scanning fossils of their skulls. The readings were compared to a large database containing the brain sizes of modern birds. These measurements were then analyzed, taking into consideration each bird’s body size — resulting in something called “relative brain size”. The results showed that a dramatic change of birds’ body size happened right after the mass extinction of dinosaurs 66 million years ago.
According to the study, published on April 23 in the journal Current Biology, birds and dinosaurs had similar brain sizes before the extinction. After the extinction of the dinosaurs, however, birds had to find a way to survive, so they shrank their bodies — since smaller animals need less food — but they kept their big brains.
“The changed landscape may have caused the rapid evolution of new brainbody scaling patterns (缩放比例) by favoring both larger brains and smaller bodies,” US paleontologist (古生物学家) Daniel Ksepka, who is the lead author of the study, told CNN.
This “evolutionary brain leap” — as scientists call it — also happened very rapidly. Without dinosaurs, birds quickly repopulated. They came in all types and sizes, which contributed to the diverse species of birds we see today.
But among all the bird species, certain ones “show above average rates of brain and body size evolution”, study co-author Adam Smith at Clemson University, US, said in a statement — with crows and parrots being the most evident. In fact, previous studies have already discovered that these birds have an amazing cognitive capacity (认知能力). They are able to use tools, imitate human speech and even remember human faces.
So, in the words of Smith, “calling someone ‘birdbrained’ is actually quite a compliment (恭维)”!
13. How did the scientists learn the brain sizes of dinosaurs and extinct birds?
A. By studying their fossil skulls. B. By searching the database.
C. By experimenting on their brains. D. By analyzing their body size.
14. How did the birds change after the extinction of the dinosaurs?
A. The birds’ bodies shrank as their brains became smaller.
B. The birds’ bodies became larger while their brains became smaller.
C. The birds’ brains remained almost the same as their bodies shrank.
D. The birds’ brains became larger to adapt to the environment.
15. According to Adam Smith, calling someone “birdbrained” is ________.
A. to make rude remarks B. to laugh at one’s small body size
C. to praise one’s intelligence D. to suggest the person is not smart
16. What is the purpose of this text?
A. To describe how birds’ evolution happened.
B. To explain the origin of the word “birdbrain”.
C. To show the amazing abilities of bird species.
D. To present the latest study on birds’ brain size.
【答案】13. A 14. C 15. C 16. D
【解析】本文为一篇说明文。文章介绍了称呼某人为“鸟人”，意味着一个人的大脑很小。最新科学研究表明，鸟类的大脑十分发达。
13. 细节理解题。根据文章第二段第一句 “An international team of 37 scientists measured the brain volume of hundreds of dinosaurs and extinct birds by scanning fossils of their skulls.”(一个由37名科学家组成的国际研究小组通过扫描恐龙和灭绝鸟类的头骨化石，测量了它们的大脑体积。)可知，科学家是通过研究恐龙和灭绝鸟类的头骨化石，得知它们的大脑的大小的。故选A项。
14. 细节理解题。根据文章第三段第二句 “After the extinction of the dinosaurs, however, birds had to find a way to survive, so they shrank their bodies-since smaller animals need less food-but they kept their big brains.”(然而，恐龙灭绝后，鸟类不得不寻找生存之道，因此它们缩小了身体，因为较小的动物需要更少的食物，但它们保留着它们大脑的大小。)可知，恐龙灭绝后，鸟类的大脑仍然像以前一样大。故选C项。
15. 推理判断题。根据文章倒数第二段第一句 “But among all the bird species, certain ones ‘show above average rates of brain and body size evolution’, study co-author Adam Smith at Clemson University, US, said in a statement-with crows and parrots being the most evident.”(但在所有鸟类中，某些鸟类“大脑和体型的进化速度高于平均水平”，这项研究的合著者、美国克莱姆森大学的亚当·史密斯在一份声明中说，乌鸦和鹦鹉是最明显的。) 和最后一段的“So, in the words of Smith, “calling someone ‘birdbrained’ is actually quite a compliment (恭维)”!（所以，用史密斯的话来说，“称呼某人‘鸟人’实际上是一种恭维）”因此，根据亚当·斯密的说法，称某人是“birdbrained”是表扬某人的智力。故选C项。
16. 推理判断题。根据文章第一段最后一句“A new study found that the expression doesn’t do birds justice either: Birds’ brains are much bigger than we thought — at least compared to their small bodies. ” (一项新的研究发现，这个表达对鸟类也不公平。鸟类的大脑比我们想象的要大得多——至少和它们小的身体相比是这样。)结合全文，可知文章介绍了对鸟类大脑的研究，发现鸟类的大脑十分发达，有些鸟类甚至有惊人的认知能力。由此推知，写这篇文章的目的是展示一项关于鸟类大脑大小的新研究。故选D项。
4、
Smart phones, tablets, fitness trackers, headphones and most of the electronic devices we use today are made of metal, plastic and glass. But electronics don’t have to be. Sala de Medeiros and her colleagues found a way to turn an ordinary piece of paper into a simple electronic keypad. Many teams around the world are working on paper-based electronics. But this new device is different from any other device. It’s the first to power itself and also resist water and dust. The user’s touch gives it all the power it needs to run.
No single moment inspired her paper keypad. Instead, she focused on devices other engineers have been working on. Then she discovered that high cost was a problem with some flexible electronics. So she decided to work with low-cost materials.
Teflon(聚四氟乙烯) is a chemical coating that keeps food from sticking to pots and pans. Similar com-pounds(复合物) can also make paper waterproof. So she started testing the chemical but the one that was sup-posed to do the best job didn’t work at all. After some research, Sala de Medeiros found out that this chemical reacts with air. She had to buy special equipment that forbade any air getting in the way. Now, the chemical works as planned. Then the team placed a stencil(钢板) with the shape of a circuit(电路) onto the back of the paper and sprayed on several layers of materials. Finally, the team flipped over the paper and printed a keypad of numbers on the other side. They also added a tiny Bluetooth chip, which let their paper device talk to a computer. The source of electricity comes from the tap of a finger. When you’re typing we can create the energy by touching or rubbing.
The electronic keypad is regular paper most people could afford but wouldn’t easily get wet or dirty. It also should fit in your pocket.
1. Which of the following is the unique feature of the new device?
A. It’s the first device made of paper. B. It has little electricity or metal.
C. It gets powered through touch. D. It has no trouble cleaning itself.
2. Why did Teflon fail to work at first?
A. It was exposed to the air. B. It was of low quality.
C. It damaged the equipment. D. It kept food stuck to pots.
3. What is the third paragraph mainly about?
A. The process of creating the device. B. The significance of the research.
C. The application of the device. D. The way to develop Teflon.
4. Which of the following can replace the underlined words “flipped over” in Para. 3?
A. Cleaned up. B. Cut up. C. Held onto. D. Turned over.
【答案】1. C 2. A 3. A 4. D
【解析】本文是一篇说明文。文章主要介绍了一种新的电子设备。这种电子设备由一张纸制成，能通过用户触摸提供能量并且防水防尘。
1. 细节理解题。根据第一段“It’s the first to power itself and also resist water and dust. The user’s touch gives it all the power it needs to run.”（ 它是第一个能自己发电，也能防水防尘的。用户的触摸给了它运行所需的所有能量。）可知，这个设备独特的功能是它通过触摸起电。故选C项。
2. 细节理解题。根据第三段“Sala de Medeiros found out that this chemical reacts with air.”（萨拉·德·梅德罗斯发现这种化学物质与空气发生反应。）可知这种化学物质与空气发生反应，所以Teflon不能正常工作的原因是它接触到了空气。故选A项。
3. 主旨大意题。第三段介绍了Sala de Medeiros解决了材料使用的问题以及设备的组装过程，可知本段主要介绍这个设备是如何制造的。故选A项。
4. 词义猜测题。根据第三段“printed a keypad of numbers on the other side”（将数字键盘打印到另一边）可知这个团队将这张纸反过来，从而猜测flipped over是“翻转”之意。故选D项。
5、
An artwork jointly created by a robot and a human artist will go on sale this week. The artwork — known as an NFT — is to be sold during an online auction (拍卖) on Tuesday. NFT stands for non-fungible token. It is a piece of art that only exists on a computer technology known as blockchain (区块链).
NFTs can exist in the form of images, video, music and text. They are usually bought with electronic money. While anyone can view NFTs, the buyer has official ownership rights over the objects. NFTs have recently been growing in popularity among investors and collectors. Earlier this month, an artwork in the form of an NFT sold for nearly $70 million.
The piece to be sold this week was a cooperative effort between a human-like robot, known as Sophia, and Italian artist Andrea Bonaceto. The company behind Sophia, Hanson Robotics, says the auction will be the first sale of a piece jointly created by a human artist, a robot and artificial intelligence (AI). The artwork, called “Sophia Instantiation”, is a 12-second video file. It combines online and physical paintings from Sophia with elements (要素) from Bonaceto’s work. The artwork also includes influences from art history.
The digital artwork will come with a physical artwork created by Sophia on a printed copy of the online piece. The online auction is to be held by a company called Nifty Gateway. After the sale, Sophia will meet with the buyer to study his or her face, before adding a final element to the artwork. Sophia’s creator, David Hanson, said this part of the project will permit the new owner to have an unusual “personal connection” to the artwork.
Bonaceto said he hopes his collaboration with Sophia will “make a statement in the art world, and even the technology world” about the way robots and humans can cooperate in the future.
Sophia’s art could be “a very, very important historical piece”, said Pablo Fraile, a Miami-based art collector and expert in NFTs. “It’s the first time these ideas have been put together,” he said.
21. The author’s main purpose in writing paragraph 2 is to ________.
A. explain the value of different forms of NFTs
B. teach readers how to buy NFTs with electronic money
C. provide readers with some information about NFTs
D. advise readers to collect or invest in NFTs
22. What can we know about “Sophia Instantiation”?
A. It is the first NFT artwork to be sold.
B. It is a physical artwork created by Sophia.
C. It is an artwork with elements from art history.
D. It is the first artwork created by a robot and AI.
23. What is Pablo Fraile’s attitude towards “Sophia Instantiation”?
A. Positive. B. Uncaring. C. Opposed. D. Skeptical.
24. What can be the best title for the text?
A. An NFT Will Gain High Popularity Among Investors
B. More NFTs Will Be Created by Humans and Robots
C. Sophia Will Be Necessary in Creating Online Artworks
D. Online Artwork That Robot Helps Create Will Be Sold
【答案】21. C 22. A 23. A 24. D
【解析】本文是一篇说明文。文章主要向人们解释了何为NFT艺术品，并且介绍了NFT艺术品即将出售的相关信息。
21. 推理判断题。通过文章第二段“NFTs can exist in the form of images, video, music and text. (NFT可以以图像、视频、音乐和文本的形式存在)”以及“NFTs have recently been growing in popularity among investors and collectors. Earlier this month, an artwork in the form of an NFT sold for nearly $70 million. (本月早些时候，一件NFT形式的艺术品以近7000万美元的价格售出)”可知，本段主要介绍了NFT存在的方式以及售价等信息，可推知，作者的目的应该是通过本段为读者提供一些关于NFT的信息。故选C项。
22. 细节理解题。通过文章第三段“the auction will be the first sale of a piece jointly created by a human artist, a robot and artificial intelligence (AI). The artwork, called “Sophia Instantiation” (此次拍卖将是人类艺术家、机器人和人工智能共同创作的作品的首次拍卖。该艺术品，称为“Sophia Instantiation”)”可知，Sophia Instantiation是第一个被出售的NFT艺术品。故选A项。
23. 推理判断题。通过文章最后一段“Sophia’s art could be “a very, very important historical piece”, said Pablo Fraile, a Miami-based art collector and expert in NFTs. “It’s the first time these ideas have been put together,” he said. (迈阿密的艺术收藏家和NFT专家Pablo Fraile说，Sophia的艺术可能是“一件非常、非常重要的历史作品”。“这是这些想法第一次被整合在一起，”他说)”可推知，Pablo Fraile对“Sophia Instantiation”持肯定态度。故选A项。
24. 主旨大意题。通读全文，再通过文章第一段“An artwork jointly created by a robot and a human artist will go on sale this week. The artwork — known as an NFT — is to be sold during an online auction on Tuesday. (一件由机器人和人类艺术家共同创作的艺术品将于本周出售。被称为NFT的艺术品将于周二在网上拍卖)”可推知，本文主要介绍了NFT艺术品即将出售的相关信息，D项“机器人帮助创作的在线艺术品将被出售”符合文意，最适合作为本文标题。故选D项。
6、
We already know that salt can lead to heart disease. But could it also affect our mind? Scientists found that a high-salt diet caused cognitive impairments in mice» and it could produce the same effect on humans.
Costantino Iadecola, director of the Feil Family Brain and Mind Research the Institute, said they fed the mice eight to sixteen times their normal salt intake and then tested the mice. After about three months, the mice had a big change in their behavior. Mice are very curious, and they like to look for new things. However, the tested mice lost the ability to identify a normal object. When the mice were put in their cage and asked to find a quiet spot, they did not remember where the quiet spot was. Then when the mice were building a nest, which is something the mice do daily, they, were unable to do so. The research suggested humans would experience a similar response.
Studies have shown Australians eat around double the recommended amount of salt each day, most of it coming from processed food. Dr. Ladecola said the estimated two teaspoons of salt the average Australian eats each day could affect the brain function in the long term. However, the decline might not be as obvious as in the mice, who were given extremely high levels of salt. "But probably over years and perhaps decades—as opposed to a few months for the mouse—even lower levels of salt may have a terrible effect," Dr ladecola said.
“High levels of salt cause serious immune changes in the organs in and around the stomach, resulting in an almost autoimmune effect on the brain. It is part of a growing body of evidence that we really are what we eat,“ Bryce Vissel, director of the Centre for Neuroscience at the University of Technology Sydney, said. "Those changes in turn cause all sorts of responses in the body, which over time certainly contribute to cognitive impairments."
9. Which can describe the tested mice?
A. They remained quiet all day. B. They became smarter than ever.
C. They forgot some routine things. D. They were quick at finding objects.
10. What do we know about Australians?
A. They ignore health advice. B. They have a higher-salt diet.
C. They dislike processed food. D. They value their brain health.
11. What does the last paragraph mainly focus on?
A. Studies carried out by Bryce Vissel. B. Immune changes brought about by salt.
C. Effects of daily diets on human behaviors. D. Links between salt intake and brain damage.
12. What does the text suggest?
A. Brain health counts much. B. The body never tells a lie.
C. Low-salt diet is to be advocated. D. Heart diseases can be prevented.
【答案】9. C 10. B 11. D 12. C
【解析】这是一篇说明文。科学家们发现，高盐饮食会导致老鼠的认知障碍，对人类也会产生同样的影响。文章介绍了这项研究开展的过程以及发现，研究表明，澳大利亚人每天摄入的盐大约是推荐量的两倍，其中大部分来自加工食品，指出高盐饮食会导致认知障碍，提倡低盐饮食。
9. 推理判断题。根据第二段中“However, the tested mice lost the ability to identify a normal object. When the mice were put in their cage and asked to find a quiet spot, they did not remember where the quiet spot was. Then when the mice were building a nest, which is something the mice do daily, they, were unable to do so.(然而，被测试的老鼠失去了识别正常物体的能力。当老鼠被关进笼子，被要求找一个安静的地方时，它们不记得安静的地方在哪里。然后，当老鼠在筑巢时——这是老鼠每天都要做的事情——它们无法这样做了)”可推知，被测试的老鼠忘记了一些日常的事情。故选C。
10. 细节理解题。根据第三段中“Studies have shown Australians eat around double the recommended amount of salt each day, most of it coming from processed food. Dr. Ladecola said the estimated two teaspoons of salt the average Australian eats each day could affect the brain function in the long term.(研究表明，澳大利亚人每天摄入的盐大约是推荐量的两倍，其中大部分来自加工食品。Ladecola博士说，澳大利亚人平均每天摄入两茶匙的盐，长期来看可能会影响大脑功能)”可知，澳大利亚人的饮食含盐量高。故选B。
11. 主旨大意题。根据最后一段““High levels of salt cause serious immune changes in the organs in and around the stomach, resulting in an almost autoimmune effect on the brain. It is part of a growing body of evidence that we really are what we eat,“ Bryce Vissel, director of the Centre for Neuroscience at the University of Technology Sydney, said. "Those changes in turn cause all sorts of responses in the body, which over time certainly contribute to cognitive impairments."(悉尼科技大学神经科学中心主任Bryce Vissel说：“高浓度的盐会导致胃内外器官严重的免疫变化，几乎会对大脑产生自身免疫效应。有越来越多的证据表明，吃什么决定人的性格，这是其中的一部分。这些变化反过来会引起身体的各种反应，久而久之肯定会导致认知障碍。”)”可知，最后一段主要讲了盐摄入和脑损伤之间的联系。故选D。
12. 推理判断题。根据第一段中“Scientists found that a high-salt diet caused cognitive impairments in mice» and it could produce the same effect on humans.(科学家们发现，高盐饮食会导致老鼠的认知障碍，对人类也会产生同样的影响)”结合文章介绍了这项研究开展的过程以及发现，研究表明，澳大利亚人每天摄入的盐大约是推荐量的两倍，其中大部分来自加工食品，指出高盐饮食会导致认知障碍，提倡低盐饮食。可推知，文章提倡低盐饮食。故选C。
7、
Bioprinting is the medically and bio-technologically equal to 3D printing. By using the same principles, the aim is to rapidly develop living structures similar to human-grown organs and tissue that can be used to heal people or test new drugs.
Of course, printing biological tissue is much more complex than building a mechanical part. There are complex layers of cells in living tissue. Bioprinters use bioink made from cells, biochemical nutrients and biological stands to support cells in an exact order. Bioinks have to operate under conditions that are suitable for living, growing tissue, so they cannot really be printed at temperatures that top body temperature.
Perhaps the simplest form of bioprinting is inkjet printing. Bioink is sprayed through tiny tubes so it has to be almost liquid and this limits the biological materials that can be printed. Most 3D printers operate by squeezing material through a pipe and bioprinters can use squeezing too, though care has to be taken not to damage cells through extreme force. Other techniques such as laser-assisted bioprinting or electrospinning (静电纺丝) are incredibly exact and can be used with thicker bioinks, but they are more tricky to use with living cells and not as rapid or able to create large quantities of tissue.
Once the bioprinter has done its work, the post-processing stage begins. Bioreactor systems are often employed to help the tissue grow up. They can be used to copy the forces and biochemical support that tissue needs to grow and differentiate correctly.
Bioprinting may be a relatively new field but the results so far are encouraging. Stem cells, which have the potential to turn into several types of cells, are being used to create bone. Organ printing can improve the health of society in general by wiping out the problem of diseases caused by organ failure, costly treatments and social care. That promise may be years away from realization but rapid prototyping (原型技术) enabled by bioprinting is pushing medical advances forward at pace.
29. What does the underlined word “they” in paragraph 2 refer to?
A. Cells. B. Bioinks.
C. Nutrients. D. Biological stands.
30. What should we pay attention to when using bioprinting?
A. The sort of human organs.
B. The thickness of bioinks.
C. The force of squeezing.
D. The order of cells.
31. What can we infer from the 3rd and 4th paragraphs?
A. The process of bioprinting is practical.
B. Bioreactor systems tend not to damage cells.
C. Most 3D printers limit the biological materials.
D. Laser-assisted bioprinting can produce much tissue.
32. Which is the suitable title for the passage?
A. Bioprinting Cures People of Diseases
B. Bioprinting is Similar to 3D Printing
C. Bioprinting Gets Care from Society
D. Bioprinting Has Much Potential
【答案】29. B 30. C 31. A 32. D
【解析】本文是一篇说明文。文章通过介绍生物打印所需材料、切实可行的过程和相关用途等告诉读者：生物打印的发展很有前景。
29. 词义猜测题。根据第二段最后一句“Bioinks have to operate under conditions that are suitable to living, growing tissue, so they cannot really be printed at temperatures that top body temperature.(生物墨水必须在适合活的、正在生长的组织的条件下运行，所以它们不能在最高体温的温度下打印)”可知，生物墨水必须在适合的条件下工作，所以它们不能在高于体表温度的状况下打印。由此可推知，画线词they指代的是生物墨水。故选B。
30. 细节理解题。根据第三段第三句“Most 3D printers operate by squeezing material through a pipe and bioprinters can use squeezing too, though care has to be taken not to damage cells through extreme force.(大多数3D打印机通过管道挤压材料来操作，生物打印机也可以使用挤压技术，但必须小心，以免通过极端的力量破坏细胞。)”可知，生物打印机也可以通过挤压原料的方式运作，不过要注意不能过度用力，否则会损坏细胞。故选C。
31. 推理判断题。根据文章第三段“Perhaps the simplest form of bioprinting is inkjet printing. Bioink is sprayed through tiny tubes so it has to be almost liquid and this limits the biological materials that can be printed.( 也许最简单的生物打印形式是喷墨打印。生物墨水是通过微小的管道喷射的，所以它必须几乎是液体，这限制了生物材料可以打印。)”再结合文章第四段“Once the bioprinter has done its work, the post-processing stage begins. Bioreactor systems are often employed to help the tissue grow up. They can be used to copy the forces and biochemical support that tissue needs to grow and differentiate correctly.(一旦生物打印完成工作，后处理阶段就开始了。生物反应器系统经常被用来帮助组织生长。它们可以用来复制组织生长和正确分化所需的力量和生化支持。)”可知，喷墨印刷是最简单的生物印刷形式。生物打印机通过挤压原料的方式运作。其他技术，如激光辅助生物打印或电纺也非常精准。一旦生物打印机完成工作，生物反应器系统经常会被用来帮助组织生长。由此可推知，生物打印的过程是切实可行的。故选A。
32. 主旨大意题。根据文章最后一句“That promise may be years away from realization but rapid prototyping enabled by bioprinting is pushing medical advances forward at pace.(这一承诺可能多年后才能实现但原型技术通过生物打印速度向前推动医学进步)”并且结合全文内容可知，本文通过介绍生物打印所需材料、切实可行的过程和相关用途等告诉读者：生物打印技术很有前景。因此，D项适合本文标题。故选D。
8、
Adulting is hard. While high school students are at the forefront of technological and learning skills, it’s often not until they leave home that they learn everyday life skills. Some believe that high schools should offer a commonsense course in which students are taught how to pay bills, change a tire or cook. Now, one Kentucky school is offering an “adulting day” to teach such skills to students in their senior year.
The class of 2019 at Bullitt Central High School in Shepherdsville, Ky., traded in their algebra and literature classes for a day to learn some positive life skills, according to Wave 3 News.
“I think that the idea occurred to me, originally, when I saw a Facebook post that parents passed around saying they needed a class in high school on taxes and cooking, ” Christy Hardin, director of the BCHS Family Resource & Youth Services Center, told Wave 3. “Our kids can get that, but they have to choose it. And “Wednesday” was a day they could pick and choose pieces they didn’t feel like they had gotten so far.”
Members of the community helped provide the lessons for the students one on one, including local police who taught them how to interact with officers during traffic stops, a speaker who explained how to decipher the difference between homesickness and depression, and others who discussed how to use credit cards, how to cook in a dorm room and how to change a tire.
While many people on Facebook applauded the idea, with some arguing, “This should be taught in every high school, ” others wondered what became of home economics.
Now known as Family and Consumer Sciences, these courses teach students how to cook, sew and budget, along with other skills. In many districts, however, the classes are electives and students do not always choose to take them.
“About time this came back, it was called Home Economics,” one woman wrote. “In today’s diverse make up of families it would be a welcome addition.”
Another shared, “We had home economics that taught us to cook and learned how to sew. We also had business math that taught us banking and finances. Why in the world is that not taught today? I mean, a special day called adulting to teach kids this stuff should be a required class credit.”
17. What can we infer from the first paragraph?
A. High school students are too busy to learn everyday life skills.
B. The schools in other districts have never taught everyday life skills to students.
C. High school students are advanced in technological and learning skills.
D. High school students are lacking in everyday life skills.
18. What put BCHS in the spotlight?
A. It did everything it could to cater to the parents.
B. It taught life skills at the cost of academic courses.
C. It offered parents opportunities to instruct classes.
D. It allow students to decide on their own subjects.
19. The underlined word “decipher” in paragraph 4 probably means “________”.
A. determine B. demonstrate C. discriminate D. distribute
20. Which of the following skills are included in the courses?
a. use credit cards b. learn algebra and literature c. change a tire d. how to cook
A. abc B. bcd C. acd D. abd
21. What are people’s attitudes towards the courses?
A. Supportive B. Opposed C. Skeptical D. Indifferent
【答案】17. D 18. B 19. C 20. C 21. A
【解析】这是一篇说明文。文章主要介绍了Bullitt Central高中牺牲一些学术课程的时间来开设一些生活技能课程，教授家政、修轮胎等技能。文章介绍了这门课程的设置安排和人们对此的一些看法。
17. 推理判断题。根据第一段中“While high school students are at the forefront of technological and learning skills, it’s often not until they leave home that they learn everyday life skills. Some believe that high schools should offer a commonsense course in which students are taught how to pay bills, change a tire or cook. (虽然高中生应该把技术和学习技能放在首位，但他们往往要到离家后才能学习日常生活技能。一些人认为，高中应该开设一门常识性课程，教学生如何支付账单、换轮胎或做饭)”可推知，高中生缺乏日常生活技能。故选D。
18. 推理判断题。根据第二段中“The class of 2019 at Bullitt Central High School in Shepherdsville, Ky., traded in their algebra and literature classes for a day to learn some positive life skills, according to Wave 3 News.(据Wave 3 News报道，肯塔基州谢泼德维尔的Bullitt Central高中2019届的学生每周牺牲一天的代数和文学课程来学习一些积极的日常生活技能)”可知，BCHS以牺牲学术课程为代价教授生活技能的做法，让其成为焦点。故选B。
19. 词义猜测题。根据画线词后文“the difference between homesickness and depression”可知，一个发言人给他们解释如何区分想家和沮丧的区别。即画线词意思为“区分”。A. determine决定；B. demonstrate证明；C. discriminate区分；D. distribute分配。故选C。
20. 细节理解题。根据第四段中“others who discussed how to use credit cards, how to cook in a dorm room and how to change a tire. (其他人讨论如何使用信用卡，如何在宿舍做饭，如何换轮胎)”可知，使用信用卡、换轮胎和如何做饭这些技能包含在课程中。故选C。
21. 推理判断题。根据倒数第二段中“one woman wrote. ''In today's diverse make up of families it would be a welcome addition. '' (一位女士写道：“在如今多元化的家庭结构钟，这将是一个受欢迎的东西”)”和最后一段中“I mean, a special day called adulting to teach kids this stuff should be a required class credit.(我的意思是，一个叫成人教育的特殊日子来教孩子们这些东西应该是一个必修的学分)”可推知，人们对课程持支持态度。故选A。
专题24 阅读理解之说明类
《• •》
考向分析
所谓说明文，就是指研究自然科学与技术的文章。说明文是对事物或事理进行客观说明的一种文体，它以说明为主要表达方式，通过解说事物或阐明事理，达到教人以知识的目的，在结构上往往采用总分、递进等方式按一定的顺序（如时间、空间、从现象到本质）进行说明。说明文的特点是客观、简练、语言准确、明了，文章很少表达作者的感情倾向。阅读说明文的重点在于读懂它说明的事物或事理，了解事物的性质、构造、成因、功能等，了解事理的含意、特点等。最近五年，说明文的出现变化不大，一直很稳定，选材通常是各学科的前沿问题；高科技领域的科研成果；人们比较关心的社会问题；人文方面的经典。由于阅读理解题的设置采用渐进式，即由简到难的方式，因此说明文是高考试卷中阅读理解题中相对比较难的，通常后置。阅读理解试题的中要之一是考查学生对词汇和句式的掌握。说明文的词汇和句式的运用较别的体裁的文章难度更大。词汇运用灵活，同一词的不同词性的用法交替出现，未列入考纲的生词较多，通常达到了4-5%。不过考生可以通过说明文的语言特点来帮助理解语篇，例如，同位语、下定义、解释、举例、同义词、反义词、上下义词以及标点符号（如破折号、冒号都有表示解释和说明）等。
考点导航
01 细节理解题
说明文中考查的细节理解题大致与记叙文相似。命题区域都有其共同点：⑴在列举处命题，如用first(1y)、second(1y)、third(1y)finally、not only...but also...、then、in addition等表示顺承关系的词语列举出事实。试题要求考生从列举出的内容中选出符合题干要求的答案项。⑵在例证处命题，句中常用由as、such as、for example、for instance等引导的短语或句子作为例证，这些例句或比喻就成为命题者设问的焦点。⑶在转折对比处命题，一般通过however、but、yet、in fact等词语来引导。对比用unlike、until、not so much…as等词语引导，命题者常对用来对比的双方属性进行考查。⑷在比较处命题，无端的比较、相反的比较、偷换对象的比较，经常出现在干扰项中，考生要标记并且关注到原文中的比较，才能顺利地排除干扰。⑸在复杂句中命题，包括同位词、插入语、定语、从句、不定式等，命题者主要考查考生对句子之间的指代关系和语法关系。
细节类问题一般都能在原文中找到出处，只要仔细就可以在文中找到答案。但正确的选择项不可能与阅读材料的原文完全相同，而是用不同的语句成句型表达相同的意思。
02 语意猜测题
说明文为了把自然规律，事物的性质等介绍清楚或把事理阐述明白，因此学术性强的生词较多，所以常进行生词词义判断题的考查。命题方式多以the underlined part … in paragraph…refers to…或what does the underlined word mean? 或what is the meaning of the underlined word?为设问方式。解题时考生应认真阅读原文，分析其对某些科学原理是如何定义、如何解释的，并以此为突破口抽象概括出生词词义。也可以通过上下文来猜测某个陌生词语的语意。或者找出某个词语在文章中的同义词。要注意破折号、同位语从句、定语从句、插入语等具有解释、说明作用的语言成分。说明文在阐述说明对象时易发生动作变换、人称转变的现象，这类题目常以it，they，them 等代词为命题点，因此考生要根据上下文语境，认真阅读原文，分析动作转换背景，弄清动作不同执行者，以便准确判断代词的其实际指代对象。
03 主旨大意题
说明文常用文章大意判断题考查考生对通篇文意的理解。即对文章的主题或中心意思的概括和归纳。主要考查考生对文章的整体理解能力。命题形式常以This passage mainly talks about ____. What is the main idea of the passage? 为设问方式。
答题时首先阅读题干，掌握问题的类型，了解试题题干以及各个选项所包含的信息，然后有针对性地对文章进行扫读，对有关信息进行快速定位，再将相关信息进行整合、甄别、分析、对比，有根有据地排除干扰项，选出正确答案。
04 判断推理题
这种试题常以(1)the passage is intended to...(2) the author suggests that...(3) the story implies that…(4) which point of view may the author agree to?(5) from the passage we can conclude that...(6) the purpose of the passage is to...为设问方式。这种的答案在原文中不是直接就能找到的，它要求考生进行合理的推断。如因果关系，文中的某些用词、语气也往往具有隐含意义，考生要将这种含义读出来。说明文常出现图示判断题，这种试题可以事物之间正确的依赖关系为命题点，要求考生判断其正确的流程顺序相互关系等。考生一定要认真阅读原文，并对照原文介绍的情况，弄清图示的差异，根据题干需要最终做出正确判断。如：动物介绍性说明文常出现动物能力判断题，考查考生对特定动物所具有能力的判断。解题时考生应认真阅读原文对动物形态活动能力的判断，了解动物的生存环境和是否会使用工具，是否善于爬行、飞翔和游泳等。观点态度题也是判断推理题考查的内容之一。说明文的对象为客观事实，但设题以议论的表达方式抒发对该说明对象的想法。如对某种新发明的赞赏，或对某个事物的批判。这类题目常见的题干表达方式有what was the author’s attitude towards ...? 等。
高考阅读理解中，说明文为主要体裁之一。高考阅读理解题的设问主要围绕以下四方面：细节事实题、主旨大意题、推理判断题、猜测词义题。其中，说明文主要以细节事实、主旨大意和猜测词义三方面问题为主。
一、词义猜测类
阅读理解题中常要求学生猜测某些单词或短语的意思。历年英语高考题中均有此类题目，有的文章尽管没有专门设题，但由于文章中常常出现生词，因此，词义的猜测还是贯穿在文章的阅读理解之中。解这类题目一般是通过上下文去理解或根据构词法去猜测。判断一个单词的意思不但离不开句子，而且还需要把句子放在上下文中，根据上下文提供的线索加以猜测。运用构词法,语境等推测关键词义，可以根据以下几种方法猜测：
（一）内在逻辑关系
根据内在逻辑关系推测词义是指运用语言知识分析和判断相关信息之间存在的逻辑关系，然后根据逻辑关系推断生词词义。
1、通过同义词和反义词的关系猜词
通过同义词猜词，一是要看由and或or连接的同义词词组，如happy and gay，即使我们不认识gay这个词，也可以知道它是愉快的意思。这是高三册第八单元阅读第五段的句子：
二是看在进一步解释的过程中使用的同义词，如Man has known something about the planets Venus，Mars，and Jupiter with the help of spaceships. 此句中的Venus（金星）,Mars（火星）,Jupiter（木星）均为生词，但只要知道planets就可猜出这几个词都属于＂行星＂这一义域.通过反义词猜词，一是看表转折关系的连词或副词，如but，while，however等；二是看与not搭配的或表示否定意义的词语，如：He is so homely, not at all as handsome as his brother.根据not at all...handsome我们不难推测出homely的意思，即不英俊，不漂亮的意思。
1、根据因果关系猜测词义
通过因果关系猜词，首先是找出生词与上下文之间的逻辑关系，然后才能猜词。有时文章借助关联词（如because，as，since，for，so，thus，as a result，of course，therefore等等）表示前因后果。例如：
You shouldn’t have blamed him for that, for it wasn’t his fault. 通过for引出的句子所表示的原因（那不是他的错），可猜出blame的词义是＂责备＂。
2、通过定义或释义关系来推测词义
例如：But sometimes, no rain falls for a long, long time. Then there is a dry period, or drought.
从drought所在句子的上文我们得知很久不下雨，于是便有一段干旱的时期，即drought，由此可见drought意思为＂久旱＂，＂旱灾＂。而a dry period和drought是同义语。这种同义或释义关系常由is，or，that is，in other words，be called或破折号等来表示。
通过句法功能来推测词义
例如：Bananas, oranges, pineapples, coconuts and some other kind of fruit grow in warm areas.假如pineapples和coconuts是生词，我们可以从这两个词在句中所处的位置来判断它们大致的意思。从句中不难看出pineapples, coconuts和bananas, oranges是同类关系，同属fruit类，因此它们是两样水果，准确地说，是菠萝和椰子。
3、通过描述猜词
描述即作者为帮助读者更感性地了解某人或某物而对该人或该物作出的外在相貌或内在特征的描写。例如The penguin is a kind of sea bird living in the South Pole. It is fat and walks in a funny way. Although it cannot fly，it can swim in the icy water to catch the fish.从例句的描述中可以得知penguin是一种生活在南极的鸟类.后面更详尽地描述了该鸟类的生活习性。
（二）外部相关因素
外部相关因素是指篇章（句子或段落）以外的其他知识，有时仅靠分析篇章内在逻辑关系无法猜出词义。这时，就需要运用生活经验和普通常识确定词义。例如：The snakes lithered through the grass.根据有关蛇的生活习性的知识，我们可以推断出slither词义为＂爬行＂。
（三）构词法
在阅读文章时，我们总会遇上一些新词汇，有时很难根据上下文来推断其词意，而它们对文章的理解又有着举足轻重的作用，此时，如掌握了一些常用的词根,前缀,后缀,合成等构词法知识，这些问题便不难解决了。
4、根据前缀猜测词义
例如：He fell into a ditch and lay there, semi-conscious, for a few minutes.根据词根conscious（清醒的，有意识的），结合前缀semi（半，部分的，不完全的），我们便可猜出semiconscious词义＂半清醒的，半昏迷的。＂I’m illiterate about such things.词根lit-erate意为＂有文化修养的，通晓的＂，前缀il表示否定，因此illiterate指＂一窍不通，不知道的＂。
5、根据后缀猜测词义
例如：Insecticide is applied where it is needed.后缀cide表示＂杀者，杀灭剂＂，结合大家熟悉的词根insect（昆虫），不难猜出insecticide意为＂杀虫剂＂。Then the vapor may change into droplets.后缀let表示＂小的＂，词根drop指＂滴，滴状物＂。将两个意思结合起来，便可推断出droplet词义＂小滴，微滴＂。
6、根据复合词的各部分猜测词义
例如：Growing economic problems were high-lighted by a slowdown in oil output. Hightlight或许是一个生词，但是分析该词结构后，就能推测出其含义。它是由high（高的，强的）和light（光线）两部分组成，合在一起便是＂以强光照射，使突出＂的意思。Bullfight is very popular in Spain. Bull（公牛）和fight（打，搏斗）结合在一起，指一种在西班牙颇为流行的体育运动—斗牛。
二、主旨大意类
主旨大意类主要测试学生对文章全面理解和概括的能力，提问的内容可能是全文的大意，也可能是某段的段落大意，一般不易在文中直接找到答案。怎样把握主旨大意题呢？通常有以下几种方法：
（一）阅读文章的标题或副标题
文章的标题是一篇文章的题眼，通过阅读标题或副标题可以迅速把握文章的主旨大意。
（二）寻找文章的主题句
分析篇章结构，找出文章主题。在许多情况下，尤其在阅读说明文和议论文时，根据其篇章特点我们可以通过仔细阅读短文的第一句或第二句，即文章的主题句来归纳出文章的主题.若短文由若干段组成，除仔细阅读第一段的首句外，还须仔细阅读每一段的第一句，即段落中心。通常文章的中心思想包含在文章的首句，有时也在文章的末句，其他句子都是用来说明和阐述主题句。因此，在确定文章的中心思想时，要求学生重视阅读文章的首句和末句。但也有一些文章，中心思想常常贯穿在全文中，因此要求学生综观全文，对段落的内容要融会贯通，对文章透彻理解后归纳总结。主题句的特点是：1. 相对于其他句子，它表达的意思比较概括；2. 主题句一般结构简单；3. 段落中其他句子必定是用来解释，支撑或发展主题句所表达的思想的。
总之，为提高阅读理解能力，在阅读时应抓中心思想，作者意图及关键词语，运用联想、比较、归纳、推测等方法，得出最佳结论，选择最佳答案，不能主观臆测，把自己的观点强加进去，与文章的观点混为一谈。经过长时间有计划，有目的的系统训练，使学生加快阅读速度，提高阅读的正确性，使两者有机地统一起来，以提高学生阅读英语和运用英语进行交际的能力，为继续学习和运用英语切实打好基础.阅读是一种综合性很强的语言实际活动。我们只有进行大量的课内外阅读，掌握一定的阅读，正确运用阅读方法，才能有效地提高阅读理解能力。
【分析】
As a popular subject of study among evolutionary ecologists, three-spined stickleback is known for their different shapes, sizes, and behaviors—they can even live in both seawater and freshwater, and under a wide range of temperatures. But what makes that?
The researchers tracked six populations of the fish before and after seasonal changes to their environment, using genome sequencing. Seasonal changes result in great changes in habitat structure and balance of salt and freshwater, and only those fish able to tolerate these rapid changes survive into the next season.
“These changes probably resemble the habitat shifts experienced by stickleback populations during the past 10,000 years.” says Professor Barrett “We hope to gain insight into the genetic changes that may have resulted from natural selection long in the past.”
Remarkably, the researchers discovered the evidence of genetic changes driven by the seasonal shifts in habitats, which mirrored the differences found between long-established freshwater and saltwater populations. “These genetic changes occurred in independent populations over a single season, highlighting just how quickly the effects of natural selection can be detected,” says Professor Barrett, “The findings suggest that we may be able to use the genetic differences to predict how populations may adapt to environment.”
The research emphasizes the importance of studying species in dynamic environments to gain a better understanding of how natural selection operates. In further research, they plan to investigate how repeatable the observed genetic changes are, by testing whether they show up year after year. Doing so would demonstrate their ability to reliably forecast the evolutionary future of these populations.
1. What does the underlined word “that” refer to in Paragraph l?
A. Stickleback is under a wide range of temperatures.
B. Stickleback is popular with evolutionary ecologists.
C. Stickleback can adapt to different living conditions.
D. Stickleback has different shapes, sizes, and behaviors.
2. What is Paragraph 2 mainly about?
A. The difficulties of the research. B. The purpose of the research.
C. The background of the research. D. The methods of the research.
3. What is the main reason for stickleback's survival?
A. Habitat shifts. B. Genetic change.
C. Seasonal changes. D. Independent populations.
4. Why will scientists study the repetition of the gennetic changes?
A. To know what natural selection is.
B. To study specices in dynamic environments.
C. To test the reliablity of the present discoveries.
D. To forecast the evolutionary future of certain species.
【答案】1. C 2. D 3. B 4. D
【解析】这是一篇说明文。文章主要说明了三刺鱼可以适应不同的生活条件，研究人员对此展开研究，发现三刺鱼生存的主要原因是遗传变化，这一研究发现可以预测某些物种的未来进化。
1. 词句猜测题。根据第一段中“As a popular subject of study among evolutionary ecologists, three-spined stickleback is known for their different shapes, sizes, and behaviors—they can even live in both seawater and freshwater, and under a wide range of temperatures.”可知，作为进化生态学家的一个热门研究课题，三刺鱼以其不同的形状、大小和行为而闻名——它们甚至可以在海水和淡水中生活，并在大范围的温度下生活，故第一段最后一句对三刺鱼可以适应不同的生活条件提出疑问，故画线词指的是“三刺鱼可以适应不同的生活条件”。故选C。
2. 主旨大意题。根据第二段“The researchers tracked six populations of the fish before and after seasonal changes to their environment, using genome sequencing. Seasonal changes result in great changes in habitat structure and balance of salt and freshwater, and only those fish able to tolerate these rapid changes survive into the next season.(研究人员通过基因组测序，跟踪了6个鱼类种群在季节变化前后的环境变化。季节的变化导致了栖息地结构和盐淡水平衡的巨大变化，只有那些能够忍受这些快速变化的鱼类才能存活到下一个季节)”可知，第二段主要讲的是研究方法。故选D。
3. 细节理解题。根据第三段““These changes probably resemble the habitat shifts experienced by stickleback populations during the past 10,000 years.” says Professor Barrett “We hope to gain insight into the genetic changes that may have resulted from natural selection long in the past.”(“这些变化可能类似于过去一万年棘鱼种群所经历的栖息地变化。” Barrett说，“我们希望深入了解可能是长期以来自然选择导致的基因变化。”)”可知，三刺鱼生存的主要原因是基因变化。故选B。
4. 细节理解题。根据最后一段中“In further research, they plan to investigate how repeatable the observed genetic changes are, by testing whether they show up year after year. Doing so would demonstrate their ability to reliably forecast the evolutionary future of these populations. (在进一步的研究中，他们计划研究观察到的基因变化的可重复性，通过测试它们是否年复一年地出现。这样做将证明它们有能力可靠地预测这些种群的未来进化)”可知，科学家研究基因变化的重复是为了预测某些物种的未来进化。故选D。
检测训练
1、
As aging population gets bigger and dementia (老年痴呆症) more common，more families are struggling with a complex question: How do you support a loved one with dementia, especially when you have a full-time job and several kids?
Reg Urbanowski may have an answer to this pressing issue: ROBOTS.
He and his team managed to develop a new type of robots named TP robots. Looking like stand-up vacuum cleaners attached to an iPad, they can be activated remotely via a smartphone and guided remotely by a controller app similar to the way a mouse is used on a desktop computer. All possess audio and visual communication capabilities, allowing the operator to be “in the room” to interact with Mom or Dad.
He believes that caregivers and family members can use a TP robot to “look in” on people with mild dementia. He says, “TP robots provide an effective solution for minimizing caregiver burden, especially for those who have career or other out-of home activities.”
Urbanowski and his team have conducted a study that involves providing TP robots for 15 Manitoba families. These robots are programmed to provide reminders of necessary daily routine like turning off the gas, taking medicine and having dinner. They will also help ensure patients are getting the exercise they need to maintain their health and well-being.
Erin Crawford, Program Director with the Alzheimer Society of Manitoba, says she has faith that TP robots will prove beneficial, particularly when it comes to reminding people with dementia to do certain things at certain times. “It means that family members that can’t be there, for whatever reason, know that those things are till happening,” she says.
5. What can we infer about TP robots from Paragraph 3?
A. It’s easy to operate. B. It can clean the room.
C. It's convenient to carry. D. It can be used on a computer.
6. How will TP robots help those with dementia?
A. By having dinner with them. B. By turning off the gas for them.
C. By doing activities with them. D. By reminding them to take pills.
7. What’s Erin Crawford’s attitude to the future of TP robots?
A. Optimistic. B. Cautious. C. Doubtful. D. Critical.
8. What is the main idea of the text?
A. TP robots provide a new solution to dementia.
B. TP robots help to take care of dementia patients.
C. Caregivers of dementia will be replaced by TP robots.
D. Urbanowski and his team are developing a new robot.
【答案】5. A 6. D 7. A 8. B
【解析】这是一篇说明文。文章主要讲述了Reg Urbanowski和他的团队一起发明了一种新型的机器人，用于解决如何照顾患有老年痴呆的家人，有了这种机器人，即使没法陪伴病人身边，这些机器人也可以提醒病人做必要的日常工作。
5. 推理判断题。由第三段中的“Looking like stand-up vacuum cleaners attached to an iPad, they can be activated remotely via a smartphone and guided remotely by a controller app similar to the way a mouse is used on a desktop computer. All possess audio and visual communication capabilities, allowing the operator to be “in the room” to interact with Mom or Dad. (看起来像是连在iPad上的立式真空吸尘器，它们可以通过智能手机远程启动，并由一个类似于台式电脑鼠标使用方式的控制器应用程序远程引导。所有设备都具有音频和视频通信能力，允许操作员“在房间里”与爸爸妈妈互动)”可知，这个机器人可以通过手机远程启动，通过一个软件进行操作，具有音频和视频通信能力，可得出TP机器人便于操作。故选A项。
6. 细节理解题。由倒数第二段中的“These robots are programmed to provide reminders of necessary daily routine like turning off the gas, taking medicine and having dinner. (这些机器人被编程，来提供必要的日常生活提醒，比如关闭煤气，吃药和吃饭)”可知，TP机器人可以提醒痴呆症患者吃药。故选D项。
7. 推理判断题。由最后一段中的“Erin Crawford, Program Director with the Alzheimer Society of Manitoba, says she has faith that TP robots will prove beneficial, particularly when it comes to reminding people with dementia to do certain things at certain times. (马尼托巴州阿尔茨海默症协会的项目主管Erin Crawford说，她相信TP机器人将被证明是有益的，特别是在提醒痴呆症患者在某些时候做某些事情时)”可知，Erin Crawford相信TP机器人将被证明是有益的，可得出她对TP机器人的未来发展前景持乐观的态度。故选A项。
8. 主旨大意题。由第一段“As aging population gets bigger and dementia (老年痴呆症) more common，more families are struggling with a complex question: How do you support a loved one with dementia, especially when you have a full-time job and several kids? (随着老龄化人口的增加和痴呆症的日益普遍，越来越多的家庭正在为一个复杂的问题而挣扎：你如何养活一个患有痴呆症的爱人，尤其是当你有一份全职工作和几个孩子的时候？)”，第二段“Reg Urbanowski may have an answer to this pressing issue: ROBOTS. (Reg Urbanowski也许能回答这个紧迫的问题：机器人)”，第四段中的“He believes that caregivers and family members can use a TP robot to “look in” on people with mild dementia. (他相信看护者和家庭成员可以使用TP机器人来“看望”轻度痴呆症患者)”和下文对TP机器人的描述可知，文章主要讲述了Reg Urbanowski和他的团队一起发明了一种新型的机器人（TP机器人），用于解决如何照顾患有老年痴呆的家人，有了这种机器人，即使没法陪伴病人身边，这些机器人也可以提醒病人做必要的日常工作，可知本文主要围绕着TP机器人可以帮忙照顾患有老年痴呆的病人展开，B项“机器人帮助照顾痴呆病人”符合文意。故选B项。
2、
According to a recent study in the Journal of Consumer Research, both the size and consumption habits of our eating companions can influence our food intake. And contrary to existing research that says you should avoid eating with heavier people who order large portions(份), it's the beanpoles with big appetites you really need to avoid.
To test the effect of social influence on eating habits, the researchers conducted two experiments. In the first, 95 undergraduate women were individually invited into a lab to ostensibly(表面上)participate in a study about movie viewership. Before the film began, each woman was asked to help herself to a snack. An actor hired by the researchers grabbed her food first. In her natural state, the actor weighed 105 pounds. But in half the cases she wore a specially designed fat suit which increased her weight to 180 pounds.
Both the fat and thin versions of the actor took a large amount of food. The participants followed suit, taking more food than they normally would have. However, they took significantly more when the actor was thin.
For the second test, in one case the thin actor took two pieces of candy from the snack bowls. In the other case, she took 30 pieces. The results were similar to the first test: the participants followed suit but took significantly more candy when the thin actor took 30 pieces.
The tests show that the social environment is extremely influential when we're making decisions. If this fellow participant is going to eat more, so will I. Call it the “I’ll have what she's having” effect. However, we'll adjust the influence. If an overweight person is having a large portion, I'll hold back a bit because I see the results of his eating habits. But if a thin person eats a lot, I'll follow suit. If he can eat much and keep slim, why can't I?
12. What is the recent study mainly about?
A. Food safety. B. Movie viewership.
C. Consumer demand. D. Eating behavior.
13. What does the underlined word “beanpoles” in paragraph 1 refer to?
A. Big eaters. B. Overweight persons.
C. Picky eaters. D. Tall thin persons.
14. Why did the researchers hire the actor?
A. To see how she would affect the participants.
B. To test if the participants could recognize her.
C. To find out what she would do in the two tests.
D. To study why she could keep her weight down.
15. On what basis do we “adjust the influence” according to the last paragraph?
A. How hungry we are. B. How slim we want to be.
C. How we perceive others. D. How we feel about the food.
【答案】12. D 13. D 14. A 15. C
【解析】本文是说明文。最近的研究表明：我们的饮食伙伴的大小和消费习惯都会影响我们的食物摄入量。文章详述了这个实验的过程。
12.细节理解题。根据第一段中的“According to a recent study in the Journal of Consumer Research, both the size and consumption habits of our eating companions can influence our food intake”可知，根据消费者研究杂志最近的一项研究，我们的饮食伙伴的大小和消费习惯都会影响我们的食物摄入量。因此这项研究是关于饮食行为的。故选D。
13.词义猜测题。根据前半句“And contrary to existing research that says you should avoid eating with heavier people who order large portions（份）”可知，现有的研究认为：你应该避免和体重较重、点大份饭菜的人一起吃饭。后半句认为，你真正应该避免的是the beanpoles with big appetites。由contrary to可推断出，画线词和heavier people（超重的人）相反，结合选项，D选项（瘦瘦高高的人）正好和heavier people正好相反。故选D。
14.推理判断题。根据第二段的“To test the effect of social influence on eating habits, the researchers conducted two experiments”可知， 为了测试社会影响对饮食习惯的影响，研究人员进行了两个实验。根据倒数第三段的内容可知，在两个实验中，胖的和瘦的演员都吃了大量的食物。参与者也照做，吃的食物比平常多。 然而，当演员是瘦的时候，参与者们服用的食物更多。由此推断，研究人员雇用演员是为了看看她如何影响参与者。故选A。
15.推理判断题。根据最后一段中的“If an overweight person is having a large portion, I’ll hold back a bit because I see the results of his eating habits. But if a thin person eats a lot, I’ll follow suit. If he can eat much and keep slim, why can’t I? ”可知，如果一个超重的人吃很大一份，我会忍住一点，因为我看到了他饮食习惯的结果。但如果一个瘦的人吃很多，我会跟着做。如果他吃得多保持苗条，为什么我不能呢？ 因此推断我们是根据我们对他人的看法（即：如何看待他人）来调整影响的。故选C。
3、
Calling someone a “birdbrain” is considered rude. It implies that someone has a small brain and thus is not smart. A new study found that the expression doesn’t do birds justice either: Birds’ brains are much bigger than we thought — at least compared to their small bodies.
An international team of 37 scientists measured the brain volume (脑容量) of hundreds of dinosaurs and extinct birds by scanning fossils of their skulls. The readings were compared to a large database containing the brain sizes of modern birds. These measurements were then analyzed, taking into consideration each bird’s body size — resulting in something called “relative brain size”. The results showed that a dramatic change of birds’ body size happened right after the mass extinction of dinosaurs 66 million years ago.
According to the study, published on April 23 in the journal Current Biology, birds and dinosaurs had similar brain sizes before the extinction. After the extinction of the dinosaurs, however, birds had to find a way to survive, so they shrank their bodies — since smaller animals need less food — but they kept their big brains.
“The changed landscape may have caused the rapid evolution of new brainbody scaling patterns (缩放比例) by favoring both larger brains and smaller bodies,” US paleontologist (古生物学家) Daniel Ksepka, who is the lead author of the study, told CNN.
This “evolutionary brain leap” — as scientists call it — also happened very rapidly. Without dinosaurs, birds quickly repopulated. They came in all types and sizes, which contributed to the diverse species of birds we see today.
But among all the bird species, certain ones “show above average rates of brain and body size evolution”, study co-author Adam Smith at Clemson University, US, said in a statement — with crows and parrots being the most evident. In fact, previous studies have already discovered that these birds have an amazing cognitive capacity (认知能力). They are able to use tools, imitate human speech and even remember human faces.
So, in the words of Smith, “calling someone ‘birdbrained’ is actually quite a compliment (恭维)”!
13. How did the scientists learn the brain sizes of dinosaurs and extinct birds?
A. By studying their fossil skulls. B. By searching the database.
C. By experimenting on their brains. D. By analyzing their body size.
14. How did the birds change after the extinction of the dinosaurs?
A. The birds’ bodies shrank as their brains became smaller.
B. The birds’ bodies became larger while their brains became smaller.
C. The birds’ brains remained almost the same as their bodies shrank.
D. The birds’ brains became larger to adapt to the environment.
15. According to Adam Smith, calling someone “birdbrained” is ________.
A. to make rude remarks B. to laugh at one’s small body size
C. to praise one’s intelligence D. to suggest the person is not smart
16. What is the purpose of this text?
A. To describe how birds’ evolution happened.
B. To explain the origin of the word “birdbrain”.
C. To show the amazing abilities of bird species.
D. To present the latest study on birds’ brain size.
【答案】13. A 14. C 15. C 16. D
【解析】本文为一篇说明文。文章介绍了称呼某人为“鸟人”，意味着一个人的大脑很小。最新科学研究表明，鸟类的大脑十分发达。
13. 细节理解题。根据文章第二段第一句 “An international team of 37 scientists measured the brain volume of hundreds of dinosaurs and extinct birds by scanning fossils of their skulls.”(一个由37名科学家组成的国际研究小组通过扫描恐龙和灭绝鸟类的头骨化石，测量了它们的大脑体积。)可知，科学家是通过研究恐龙和灭绝鸟类的头骨化石，得知它们的大脑的大小的。故选A项。
14. 细节理解题。根据文章第三段第二句 “After the extinction of the dinosaurs, however, birds had to find a way to survive, so they shrank their bodies-since smaller animals need less food-but they kept their big brains.”(然而，恐龙灭绝后，鸟类不得不寻找生存之道，因此它们缩小了身体，因为较小的动物需要更少的食物，但它们保留着它们大脑的大小。)可知，恐龙灭绝后，鸟类的大脑仍然像以前一样大。故选C项。
15. 推理判断题。根据文章倒数第二段第一句 “But among all the bird species, certain ones ‘show above average rates of brain and body size evolution’, study co-author Adam Smith at Clemson University, US, said in a statement-with crows and parrots being the most evident.”(但在所有鸟类中，某些鸟类“大脑和体型的进化速度高于平均水平”，这项研究的合著者、美国克莱姆森大学的亚当·史密斯在一份声明中说，乌鸦和鹦鹉是最明显的。) 和最后一段的“So, in the words of Smith, “calling someone ‘birdbrained’ is actually quite a compliment (恭维)”!（所以，用史密斯的话来说，“称呼某人‘鸟人’实际上是一种恭维）”因此，根据亚当·斯密的说法，称某人是“birdbrained”是表扬某人的智力。故选C项。
16. 推理判断题。根据文章第一段最后一句“A new study found that the expression doesn’t do birds justice either: Birds’ brains are much bigger than we thought — at least compared to their small bodies. ” (一项新的研究发现，这个表达对鸟类也不公平。鸟类的大脑比我们想象的要大得多——至少和它们小的身体相比是这样。)结合全文，可知文章介绍了对鸟类大脑的研究，发现鸟类的大脑十分发达，有些鸟类甚至有惊人的认知能力。由此推知，写这篇文章的目的是展示一项关于鸟类大脑大小的新研究。故选D项。
4、
Smart phones, tablets, fitness trackers, headphones and most of the electronic devices we use today are made of metal, plastic and glass. But electronics don’t have to be. Sala de Medeiros and her colleagues found a way to turn an ordinary piece of paper into a simple electronic keypad. Many teams around the world are working on paper-based electronics. But this new device is different from any other device. It’s the first to power itself and also resist water and dust. The user’s touch gives it all the power it needs to run.
No single moment inspired her paper keypad. Instead, she focused on devices other engineers have been working on. Then she discovered that high cost was a problem with some flexible electronics. So she decided to work with low-cost materials.
Teflon(聚四氟乙烯) is a chemical coating that keeps food from sticking to pots and pans. Similar com-pounds(复合物) can also make paper waterproof. So she started testing the chemical but the one that was sup-posed to do the best job didn’t work at all. After some research, Sala de Medeiros found out that this chemical reacts with air. She had to buy special equipment that forbade any air getting in the way. Now, the chemical works as planned. Then the team placed a stencil(钢板) with the shape of a circuit(电路) onto the back of the paper and sprayed on several layers of materials. Finally, the team flipped over the paper and printed a keypad of numbers on the other side. They also added a tiny Bluetooth chip, which let their paper device talk to a computer. The source of electricity comes from the tap of a finger. When you’re typing we can create the energy by touching or rubbing.
The electronic keypad is regular paper most people could afford but wouldn’t easily get wet or dirty. It also should fit in your pocket.
1. Which of the following is the unique feature of the new device?
A. It’s the first device made of paper. B. It has little electricity or metal.
C. It gets powered through touch. D. It has no trouble cleaning itself.
2. Why did Teflon fail to work at first?
A. It was exposed to the air. B. It was of low quality.
C. It damaged the equipment. D. It kept food stuck to pots.
3. What is the third paragraph mainly about?
A. The process of creating the device. B. The significance of the research.
C. The application of the device. D. The way to develop Teflon.
4. Which of the following can replace the underlined words “flipped over” in Para. 3?
A. Cleaned up. B. Cut up. C. Held onto. D. Turned over.
【答案】1. C 2. A 3. A 4. D
【解析】本文是一篇说明文。文章主要介绍了一种新的电子设备。这种电子设备由一张纸制成，能通过用户触摸提供能量并且防水防尘。
1. 细节理解题。根据第一段“It’s the first to power itself and also resist water and dust. The user’s touch gives it all the power it needs to run.”（ 它是第一个能自己发电，也能防水防尘的。用户的触摸给了它运行所需的所有能量。）可知，这个设备独特的功能是它通过触摸起电。故选C项。
2. 细节理解题。根据第三段“Sala de Medeiros found out that this chemical reacts with air.”（萨拉·德·梅德罗斯发现这种化学物质与空气发生反应。）可知这种化学物质与空气发生反应，所以Teflon不能正常工作的原因是它接触到了空气。故选A项。
3. 主旨大意题。第三段介绍了Sala de Medeiros解决了材料使用的问题以及设备的组装过程，可知本段主要介绍这个设备是如何制造的。故选A项。
4. 词义猜测题。根据第三段“printed a keypad of numbers on the other side”（将数字键盘打印到另一边）可知这个团队将这张纸反过来，从而猜测flipped over是“翻转”之意。故选D项。
5、
An artwork jointly created by a robot and a human artist will go on sale this week. The artwork — known as an NFT — is to be sold during an online auction (拍卖) on Tuesday. NFT stands for non-fungible token. It is a piece of art that only exists on a computer technology known as blockchain (区块链).
NFTs can exist in the form of images, video, music and text. They are usually bought with electronic money. While anyone can view NFTs, the buyer has official ownership rights over the objects. NFTs have recently been growing in popularity among investors and collectors. Earlier this month, an artwork in the form of an NFT sold for nearly $70 million.
The piece to be sold this week was a cooperative effort between a human-like robot, known as Sophia, and Italian artist Andrea Bonaceto. The company behind Sophia, Hanson Robotics, says the auction will be the first sale of a piece jointly created by a human artist, a robot and artificial intelligence (AI). The artwork, called “Sophia Instantiation”, is a 12-second video file. It combines online and physical paintings from Sophia with elements (要素) from Bonaceto’s work. The artwork also includes influences from art history.
The digital artwork will come with a physical artwork created by Sophia on a printed copy of the online piece. The online auction is to be held by a company called Nifty Gateway. After the sale, Sophia will meet with the buyer to study his or her face, before adding a final element to the artwork. Sophia’s creator, David Hanson, said this part of the project will permit the new owner to have an unusual “personal connection” to the artwork.
Bonaceto said he hopes his collaboration with Sophia will “make a statement in the art world, and even the technology world” about the way robots and humans can cooperate in the future.
Sophia’s art could be “a very, very important historical piece”, said Pablo Fraile, a Miami-based art collector and expert in NFTs. “It’s the first time these ideas have been put together,” he said.
21. The author’s main purpose in writing paragraph 2 is to ________.
A. explain the value of different forms of NFTs
B. teach readers how to buy NFTs with electronic money
C. provide readers with some information about NFTs
D. advise readers to collect or invest in NFTs
22. What can we know about “Sophia Instantiation”?
A. It is the first NFT artwork to be sold.
B. It is a physical artwork created by Sophia.
C. It is an artwork with elements from art history.
D. It is the first artwork created by a robot and AI.
23. What is Pablo Fraile’s attitude towards “Sophia Instantiation”?
A. Positive. B. Uncaring. C. Opposed. D. Skeptical.
24. What can be the best title for the text?
A. An NFT Will Gain High Popularity Among Investors
B. More NFTs Will Be Created by Humans and Robots
C. Sophia Will Be Necessary in Creating Online Artworks
D. Online Artwork That Robot Helps Create Will Be Sold
【答案】21. C 22. A 23. A 24. D
【解析】本文是一篇说明文。文章主要向人们解释了何为NFT艺术品，并且介绍了NFT艺术品即将出售的相关信息。
21. 推理判断题。通过文章第二段“NFTs can exist in the form of images, video, music and text. (NFT可以以图像、视频、音乐和文本的形式存在)”以及“NFTs have recently been growing in popularity among investors and collectors. Earlier this month, an artwork in the form of an NFT sold for nearly $70 million. (本月早些时候，一件NFT形式的艺术品以近7000万美元的价格售出)”可知，本段主要介绍了NFT存在的方式以及售价等信息，可推知，作者的目的应该是通过本段为读者提供一些关于NFT的信息。故选C项。
22. 细节理解题。通过文章第三段“the auction will be the first sale of a piece jointly created by a human artist, a robot and artificial intelligence (AI). The artwork, called “Sophia Instantiation” (此次拍卖将是人类艺术家、机器人和人工智能共同创作的作品的首次拍卖。该艺术品，称为“Sophia Instantiation”)”可知，Sophia Instantiation是第一个被出售的NFT艺术品。故选A项。
23. 推理判断题。通过文章最后一段“Sophia’s art could be “a very, very important historical piece”, said Pablo Fraile, a Miami-based art collector and expert in NFTs. “It’s the first time these ideas have been put together,” he said. (迈阿密的艺术收藏家和NFT专家Pablo Fraile说，Sophia的艺术可能是“一件非常、非常重要的历史作品”。“这是这些想法第一次被整合在一起，”他说)”可推知，Pablo Fraile对“Sophia Instantiation”持肯定态度。故选A项。
24. 主旨大意题。通读全文，再通过文章第一段“An artwork jointly created by a robot and a human artist will go on sale this week. The artwork — known as an NFT — is to be sold during an online auction on Tuesday. (一件由机器人和人类艺术家共同创作的艺术品将于本周出售。被称为NFT的艺术品将于周二在网上拍卖)”可推知，本文主要介绍了NFT艺术品即将出售的相关信息，D项“机器人帮助创作的在线艺术品将被出售”符合文意，最适合作为本文标题。故选D项。
6、
We already know that salt can lead to heart disease. But could it also affect our mind? Scientists found that a high-salt diet caused cognitive impairments in mice» and it could produce the same effect on humans.
Costantino Iadecola, director of the Feil Family Brain and Mind Research the Institute, said they fed the mice eight to sixteen times their normal salt intake and then tested the mice. After about three months, the mice had a big change in their behavior. Mice are very curious, and they like to look for new things. However, the tested mice lost the ability to identify a normal object. When the mice were put in their cage and asked to find a quiet spot, they did not remember where the quiet spot was. Then when the mice were building a nest, which is something the mice do daily, they, were unable to do so. The research suggested humans would experience a similar response.
Studies have shown Australians eat around double the recommended amount of salt each day, most of it coming from processed food. Dr. Ladecola said the estimated two teaspoons of salt the average Australian eats each day could affect the brain function in the long term. However, the decline might not be as obvious as in the mice, who were given extremely high levels of salt. "But probably over years and perhaps decades—as opposed to a few months for the mouse—even lower levels of salt may have a terrible effect," Dr ladecola said.
“High levels of salt cause serious immune changes in the organs in and around the stomach, resulting in an almost autoimmune effect on the brain. It is part of a growing body of evidence that we really are what we eat,“ Bryce Vissel, director of the Centre for Neuroscience at the University of Technology Sydney, said. "Those changes in turn cause all sorts of responses in the body, which over time certainly contribute to cognitive impairments."
9. Which can describe the tested mice?
A. They remained quiet all day. B. They became smarter than ever.
C. They forgot some routine things. D. They were quick at finding objects.
10. What do we know about Australians?
A. They ignore health advice. B. They have a higher-salt diet.
C. They dislike processed food. D. They value their brain health.
11. What does the last paragraph mainly focus on?
A. Studies carried out by Bryce Vissel. B. Immune changes brought about by salt.
C. Effects of daily diets on human behaviors. D. Links between salt intake and brain damage.
12. What does the text suggest?
A. Brain health counts much. B. The body never tells a lie.
C. Low-salt diet is to be advocated. D. Heart diseases can be prevented.
【答案】9. C 10. B 11. D 12. C
【解析】这是一篇说明文。科学家们发现，高盐饮食会导致老鼠的认知障碍，对人类也会产生同样的影响。文章介绍了这项研究开展的过程以及发现，研究表明，澳大利亚人每天摄入的盐大约是推荐量的两倍，其中大部分来自加工食品，指出高盐饮食会导致认知障碍，提倡低盐饮食。
9. 推理判断题。根据第二段中“However, the tested mice lost the ability to identify a normal object. When the mice were put in their cage and asked to find a quiet spot, they did not remember where the quiet spot was. Then when the mice were building a nest, which is something the mice do daily, they, were unable to do so.(然而，被测试的老鼠失去了识别正常物体的能力。当老鼠被关进笼子，被要求找一个安静的地方时，它们不记得安静的地方在哪里。然后，当老鼠在筑巢时——这是老鼠每天都要做的事情——它们无法这样做了)”可推知，被测试的老鼠忘记了一些日常的事情。故选C。
10. 细节理解题。根据第三段中“Studies have shown Australians eat around double the recommended amount of salt each day, most of it coming from processed food. Dr. Ladecola said the estimated two teaspoons of salt the average Australian eats each day could affect the brain function in the long term.(研究表明，澳大利亚人每天摄入的盐大约是推荐量的两倍，其中大部分来自加工食品。Ladecola博士说，澳大利亚人平均每天摄入两茶匙的盐，长期来看可能会影响大脑功能)”可知，澳大利亚人的饮食含盐量高。故选B。
11. 主旨大意题。根据最后一段““High levels of salt cause serious immune changes in the organs in and around the stomach, resulting in an almost autoimmune effect on the brain. It is part of a growing body of evidence that we really are what we eat,“ Bryce Vissel, director of the Centre for Neuroscience at the University of Technology Sydney, said. "Those changes in turn cause all sorts of responses in the body, which over time certainly contribute to cognitive impairments."(悉尼科技大学神经科学中心主任Bryce Vissel说：“高浓度的盐会导致胃内外器官严重的免疫变化，几乎会对大脑产生自身免疫效应。有越来越多的证据表明，吃什么决定人的性格，这是其中的一部分。这些变化反过来会引起身体的各种反应，久而久之肯定会导致认知障碍。”)”可知，最后一段主要讲了盐摄入和脑损伤之间的联系。故选D。
12. 推理判断题。根据第一段中“Scientists found that a high-salt diet caused cognitive impairments in mice» and it could produce the same effect on humans.(科学家们发现，高盐饮食会导致老鼠的认知障碍，对人类也会产生同样的影响)”结合文章介绍了这项研究开展的过程以及发现，研究表明，澳大利亚人每天摄入的盐大约是推荐量的两倍，其中大部分来自加工食品，指出高盐饮食会导致认知障碍，提倡低盐饮食。可推知，文章提倡低盐饮食。故选C。
7、
Bioprinting is the medically and bio-technologically equal to 3D printing. By using the same principles, the aim is to rapidly develop living structures similar to human-grown organs and tissue that can be used to heal people or test new drugs.
Of course, printing biological tissue is much more complex than building a mechanical part. There are complex layers of cells in living tissue. Bioprinters use bioink made from cells, biochemical nutrients and biological stands to support cells in an exact order. Bioinks have to operate under conditions that are suitable for living, growing tissue, so they cannot really be printed at temperatures that top body temperature.
Perhaps the simplest form of bioprinting is inkjet printing. Bioink is sprayed through tiny tubes so it has to be almost liquid and this limits the biological materials that can be printed. Most 3D printers operate by squeezing material through a pipe and bioprinters can use squeezing too, though care has to be taken not to damage cells through extreme force. Other techniques such as laser-assisted bioprinting or electrospinning (静电纺丝) are incredibly exact and can be used with thicker bioinks, but they are more tricky to use with living cells and not as rapid or able to create large quantities of tissue.
Once the bioprinter has done its work, the post-processing stage begins. Bioreactor systems are often employed to help the tissue grow up. They can be used to copy the forces and biochemical support that tissue needs to grow and differentiate correctly.
Bioprinting may be a relatively new field but the results so far are encouraging. Stem cells, which have the potential to turn into several types of cells, are being used to create bone. Organ printing can improve the health of society in general by wiping out the problem of diseases caused by organ failure, costly treatments and social care. That promise may be years away from realization but rapid prototyping (原型技术) enabled by bioprinting is pushing medical advances forward at pace.
29. What does the underlined word “they” in paragraph 2 refer to?
A. Cells. B. Bioinks.
C. Nutrients. D. Biological stands.
30. What should we pay attention to when using bioprinting?
A. The sort of human organs.
B. The thickness of bioinks.
C. The force of squeezing.
D. The order of cells.
31. What can we infer from the 3rd and 4th paragraphs?
A. The process of bioprinting is practical.
B. Bioreactor systems tend not to damage cells.
C. Most 3D printers limit the biological materials.
D. Laser-assisted bioprinting can produce much tissue.
32. Which is the suitable title for the passage?
A. Bioprinting Cures People of Diseases
B. Bioprinting is Similar to 3D Printing
C. Bioprinting Gets Care from Society
D. Bioprinting Has Much Potential
【答案】29. B 30. C 31. A 32. D
【解析】本文是一篇说明文。文章通过介绍生物打印所需材料、切实可行的过程和相关用途等告诉读者：生物打印的发展很有前景。
29. 词义猜测题。根据第二段最后一句“Bioinks have to operate under conditions that are suitable to living, growing tissue, so they cannot really be printed at temperatures that top body temperature.(生物墨水必须在适合活的、正在生长的组织的条件下运行，所以它们不能在最高体温的温度下打印)”可知，生物墨水必须在适合的条件下工作，所以它们不能在高于体表温度的状况下打印。由此可推知，画线词they指代的是生物墨水。故选B。
30. 细节理解题。根据第三段第三句“Most 3D printers operate by squeezing material through a pipe and bioprinters can use squeezing too, though care has to be taken not to damage cells through extreme force.(大多数3D打印机通过管道挤压材料来操作，生物打印机也可以使用挤压技术，但必须小心，以免通过极端的力量破坏细胞。)”可知，生物打印机也可以通过挤压原料的方式运作，不过要注意不能过度用力，否则会损坏细胞。故选C。
31. 推理判断题。根据文章第三段“Perhaps the simplest form of bioprinting is inkjet printing. Bioink is sprayed through tiny tubes so it has to be almost liquid and this limits the biological materials that can be printed.( 也许最简单的生物打印形式是喷墨打印。生物墨水是通过微小的管道喷射的，所以它必须几乎是液体，这限制了生物材料可以打印。)”再结合文章第四段“Once the bioprinter has done its work, the post-processing stage begins. Bioreactor systems are often employed to help the tissue grow up. They can be used to copy the forces and biochemical support that tissue needs to grow and differentiate correctly.(一旦生物打印完成工作，后处理阶段就开始了。生物反应器系统经常被用来帮助组织生长。它们可以用来复制组织生长和正确分化所需的力量和生化支持。)”可知，喷墨印刷是最简单的生物印刷形式。生物打印机通过挤压原料的方式运作。其他技术，如激光辅助生物打印或电纺也非常精准。一旦生物打印机完成工作，生物反应器系统经常会被用来帮助组织生长。由此可推知，生物打印的过程是切实可行的。故选A。
32. 主旨大意题。根据文章最后一句“That promise may be years away from realization but rapid prototyping enabled by bioprinting is pushing medical advances forward at pace.(这一承诺可能多年后才能实现但原型技术通过生物打印速度向前推动医学进步)”并且结合全文内容可知，本文通过介绍生物打印所需材料、切实可行的过程和相关用途等告诉读者：生物打印技术很有前景。因此，D项适合本文标题。故选D。
8、
Adulting is hard. While high school students are at the forefront of technological and learning skills, it’s often not until they leave home that they learn everyday life skills. Some believe that high schools should offer a commonsense course in which students are taught how to pay bills, change a tire or cook. Now, one Kentucky school is offering an “adulting day” to teach such skills to students in their senior year.
The class of 2019 at Bullitt Central High School in Shepherdsville, Ky., traded in their algebra and literature classes for a day to learn some positive life skills, according to Wave 3 News.
“I think that the idea occurred to me, originally, when I saw a Facebook post that parents passed around saying they needed a class in high school on taxes and cooking, ” Christy Hardin, director of the BCHS Family Resource & Youth Services Center, told Wave 3. “Our kids can get that, but they have to choose it. And “Wednesday” was a day they could pick and choose pieces they didn’t feel like they had gotten so far.”
Members of the community helped provide the lessons for the students one on one, including local police who taught them how to interact with officers during traffic stops, a speaker who explained how to decipher the difference between homesickness and depression, and others who discussed how to use credit cards, how to cook in a dorm room and how to change a tire.
While many people on Facebook applauded the idea, with some arguing, “This should be taught in every high school, ” others wondered what became of home economics.
Now known as Family and Consumer Sciences, these courses teach students how to cook, sew and budget, along with other skills. In many districts, however, the classes are electives and students do not always choose to take them.
“About time this came back, it was called Home Economics,” one woman wrote. “In today’s diverse make up of families it would be a welcome addition.”
Another shared, “We had home economics that taught us to cook and learned how to sew. We also had business math that taught us banking and finances. Why in the world is that not taught today? I mean, a special day called adulting to teach kids this stuff should be a required class credit.”
17. What can we infer from the first paragraph?
A. High school students are too busy to learn everyday life skills.
B. The schools in other districts have never taught everyday life skills to students.
C. High school students are advanced in technological and learning skills.
D. High school students are lacking in everyday life skills.
18. What put BCHS in the spotlight?
A. It did everything it could to cater to the parents.
B. It taught life skills at the cost of academic courses.
C. It offered parents opportunities to instruct classes.
D. It allow students to decide on their own subjects.
19. The underlined word “decipher” in paragraph 4 probably means “________”.
A. determine B. demonstrate C. discriminate D. distribute
20. Which of the following skills are included in the courses?
a. use credit cards b. learn algebra and literature c. change a tire d. how to cook
A. abc B. bcd C. acd D. abd
21. What are people’s attitudes towards the courses?
A. Supportive B. Opposed C. Skeptical D. Indifferent
【答案】17. D 18. B 19. C 20. C 21. A
【解析】这是一篇说明文。文章主要介绍了Bullitt Central高中牺牲一些学术课程的时间来开设一些生活技能课程，教授家政、修轮胎等技能。文章介绍了这门课程的设置安排和人们对此的一些看法。
17. 推理判断题。根据第一段中“While high school students are at the forefront of technological and learning skills, it’s often not until they leave home that they learn everyday life skills. Some believe that high schools should offer a commonsense course in which students are taught how to pay bills, change a tire or cook. (虽然高中生应该把技术和学习技能放在首位，但他们往往要到离家后才能学习日常生活技能。一些人认为，高中应该开设一门常识性课程，教学生如何支付账单、换轮胎或做饭)”可推知，高中生缺乏日常生活技能。故选D。
18. 推理判断题。根据第二段中“The class of 2019 at Bullitt Central High School in Shepherdsville, Ky., traded in their algebra and literature classes for a day to learn some positive life skills, according to Wave 3 News.(据Wave 3 News报道，肯塔基州谢泼德维尔的Bullitt Central高中2019届的学生每周牺牲一天的代数和文学课程来学习一些积极的日常生活技能)”可知，BCHS以牺牲学术课程为代价教授生活技能的做法，让其成为焦点。故选B。
19. 词义猜测题。根据画线词后文“the difference between homesickness and depression”可知，一个发言人给他们解释如何区分想家和沮丧的区别。即画线词意思为“区分”。A. determine决定；B. demonstrate证明；C. discriminate区分；D. distribute分配。故选C。
20. 细节理解题。根据第四段中“others who discussed how to use credit cards, how to cook in a dorm room and how to change a tire. (其他人讨论如何使用信用卡，如何在宿舍做饭，如何换轮胎)”可知，使用信用卡、换轮胎和如何做饭这些技能包含在课程中。故选C。
21. 推理判断题。根据倒数第二段中“one woman wrote. ''In today's diverse make up of families it would be a welcome addition. '' (一位女士写道：“在如今多元化的家庭结构钟，这将是一个受欢迎的东西”)”和最后一段中“I mean, a special day called adulting to teach kids this stuff should be a required class credit.(我的意思是，一个叫成人教育的特殊日子来教孩子们这些东西应该是一个必修的学分)”可推知，人们对课程持支持态度。故选A。
相关试卷
高考英语一轮复习高分突破练习专题29 完形填空之议论文类（含解析）： 这是一份高考英语一轮复习高分突破练习专题29 完形填空之议论文类（含解析），共27页。试卷主要包含了 开门见山，直接提出论点， 导入式提出论点， 水到渠成式得出结论，使用倒装，使用转义，B 37， A等内容，欢迎下载使用。
高考英语一轮复习高分突破练习专题28完形填空之说明文类（含解析）： 这是一份高考英语一轮复习高分突破练习专题28完形填空之说明文类（含解析），共31页。试卷主要包含了文章多用现在时态，文章主题明确，层次分明，B29， A等内容，欢迎下载使用。
高考英语一轮复习高分突破练习专题27完形填空之记叙文类（含解析）： 这是一份高考英语一轮复习高分突破练习专题27完形填空之记叙文类（含解析），共28页。试卷主要包含了 题材相对稳定， 文章短小精悍， 稳定中有变化， 关注末段，注意感想， 浏览全文，复查核定， A等内容，欢迎下载使用。
