北师大版 (2019)必修 第二册Lesson 2 Apps优质课件ppt

课时把关练

Period Ⅲ　LESSON 2

第一部分　基础知识练

Ⅰ. 单词拼写

1. The __________ (最新的) figures show steady growth.
2. I need to draw some money out of my __________ (账户).
3. She is collecting __________ (素材) for her latest novel.
4. The letter contained some minor spelling __________ (错误).
5. He inserted the disk and pressed the “play” __________ (按钮).
6. New types of multi­tasking __________ (软件) are now available.
7. The furniture store will __________ (递送) our new bed on Thursday.
8. The market has to be fed with an endless supply of __________ (商品).
9. The rules are there to __________ (确保) everyone’s safety and enjoyment.
10. There is a new __________ (装置) for cars that warns drivers of traffic jams ahead.

Ⅱ. 单句语法填空

1. The __________ (real) is that there is not enough money to pay for this project.
2. China is wealthier and __________ (power) than ever before.
3. We must have a complete plan __________ (ensure) success.
4. Nowadays, there is a great deal of __________ (press) on the young.
5. It’s very convenient to get something by __________ (deliver) service.
6. We have had a __________ (favour) response to the plan so far.
7. Flights should __________ (confirm) 48 hours before departure.
8. Students account __________ the vast majority of our customers.
9. If you subscribe __________ this newspaper, you’ll get an extra magazine.
10. The price includes travel and __________ (accommodate) but meals are extra.

Ⅲ. 完成句子　

1. He seems very young, but _________________________ he is older than all of us.

他看上去很年轻，可实际上他比我们所有人年龄都大。

2. Could you _________________________—would you feed my cat this weekend?

你能帮我个忙——这周末帮我喂猫吗？

3. _________________________ the meeting will take place next week.

已经确定会议将于下个星期召开。

4. Frank _________________________ the belief that human kindness would overcome evil.

弗兰克坚信人类的善良能够战胜邪恶。

5. I think you have to _________________________ he is much younger than the rest of us.

我认为你得考虑到他比我们其他人都要年轻得多。

第二部分　能力提升练

Ⅰ. 语法填空

主题：人与社会（科学与技术）　话题：生物医学机器人　体裁：说明文　建议用时：8＇

In the 1980s, Paolo Dario dreamed of developing 1.__________ (high) advanced artificial limbs(假肢) to help people who really needed such devices, but he never expected his dream to be realised. Dario, 2.__________ professor of biomedical robotics in Italy, said that as an engineer he always wanted to see such dreams come true, even if a lot of work must 3. __________ (do).

He 4. __________ (make) the comment(评论) in Beijing during a keynote speech at the 2019 World Robot Conference. “You have to understand the 5.__________ (exist) problem and develop robotic arms by thinking outside the box. We hope what we need for robots can become smaller and lighter. But at the same time, as a lot of technology is now used in robotic sensors(传感器), they have become much 6.__________ (large),” he said.

A paper 7.__________ was published in the journal Nature in 2014 stated that a human could not only control artificial limbs, but also 8.__________ (feel) the different materials they were made from. “In the future, the super robot will further enable people with disabilities to walk on 9.__________(they) own and allow blind people 10.__________ (recover) their sight,” Dario said.

Ⅱ. 阅读理解

主题：人与社会（科学与技术）　话题：人工智能　体裁：说明文　建议用时：6＇

You’ve heard the predictions from some of the brightest minds about AI’s influence. Tesla and SpaceX’s chief Elon Musk worries that AI is far more dangerous than nuclear weapons. The late scientist Stephen Hawking warned that AI could serve as the “worst event in the history of our civilisation” unless humanity was prepared for its possible risks.

But many experts, even those who are aware of such risks, have a more positive attitude, especially in health-care and possibly in education. That is one of the results from a new AI study released Monday by the Pew Research Centre.

Pew canvassed the opinions of 979 experts over the summer, a group that included famous technologists, developers, innovators, business and policy leaders. The interviewed experts, some of whom chose to remain anonymous, were asked to join in the discussion of a serious and important question: “By 2030, do you think it is most likely that advancing AI and related technology systems will improve human capacities and empower them?”

　　Nearly two-thirds of the experts predicted most of us will be mostly better off. But a third thought otherwise, and a majority of the experts expressed at least some concerns over the long-term impact of AI on the “essential elements of being humans”. Among those concerns were data abuse, loss of jobs and loss of control brought by autonomous weapons and cybercrime. Above all, by taking data in and spitting answers out, those “black box” tools make decisions in digital systems. It is erosion in our ability to think for ourselves.

1. Why is Stephen Hawking mentioned in the first paragraph?

A. To warn humans to give up AI as soon as possible.

B. To remind readers that a new AI age has come into view.

C. To prove great scientists care much about the future of AI.

D. To introduce the main idea of the text that AI benefits the future.

2. What is true of Pew’s study?

A. Most experts are certain that AI will be out of control.

B. Pew asked experts from different fields for opinions.

C. Pew concludes that humans will suffer from AI.

D. 33% of the experts think AI will have little impact on humans.

3. Why are some experts concerned about “black box” tools?

A. They make decisions in digital systems.

B. They can take data in and spit answers out.

C. They may weaken our ability to think independently.  

D. They may decrease humans’ welfare in the long term.

4. What is the last paragraph mainly about?

A. Experts’ concern about AI. B. Humans’ being controlled by AI.

C. Experts’ expectation of AI. D. AI’s influence on society.

Ⅲ. 完形填空

主题：人与自我（做人与做事）　话题：失而复得的日记本　体裁：记叙文　建议用时：12＇

My husband Adlai and I often celebrated special occasions. Our anniversary was coming up. But this time I felt a sense of 　1　. I couldn’t help thinking about my journal.

For birthdays and anniversaries, 　2　 giving each other cards that we were not interested in, Adlai and I wrote letters. For years, I’d written almost all of mine in a journal. For our eighteenth anniversary, we went camping. After a hike, we returned to 　3　 our letters. But the campsite was 　4　 by a bear. Our tent fell down. Worst of all, my journal was 　5　. We searched for hours, but it was 　6　.

I never 　7　. I always wanted to have back those nine years of letters! One day, I came home to find two

　8　 stood in the yard with Adlai. Adlai held up a weather-beaten book. My journal! The woman and her husband had 　9　 it weeks earlier in the underbrush. She was 　10　 when reading my love letters. “We only have your first names, so it is a bit 　11　 to find you,” the woman said.

As a result of their 　12　 I could hug my journal again. I couldn’t thank them more. There are always people who show 　13　 to others. What the couple did doesn’t 　14　 change our lives, but it can certainly change the way we 　15　 about life.

1. A. duty  B. excitement C. loss D. fear

2. A. apart from B. instead of C. regardless of D. as for

3. A. send  B. discuss C. spread D. exchange

4. A. destroyed B. watched C. locked D. examined

5. A. waiting  B. missing C. appearing D. dropping

6. A. hopeless  B. successful C. dangerous D. safe

7. A. got away  B. set out C. gave up D. came back

8. A. friends  B. customers C. relatives D. strangers

9. A. discovered B. hidden C. returned  D. passed

10. A. satisfied B. moved C. tired  D. scared

11. A. easy  B. interesting C. boring  D. difficult

12. A. needs  B. experiments C. projects  D. efforts

13. A. kindness B. understanding C. encouragement  D. protection

14. A. partly  B. equally C. secretly  D. necessarily

15. A. talk  B. feel C. plan  D. complain

Period Ⅲ　LESSON 2

第一部分　基础知识练

Ⅰ. 1. latest　2. account　3. material　4. errors　5. button　6. software　7. deliver　8. goods　

9. ensure　10. device　

Ⅱ. 1. reality　2. more powerful　3. to ensure　4. pressure　5. delivery　6. favourable　7. be confirmed

8. for　9. to　10. accommodation　

Ⅲ. 1. in reality　2. do me a favour　3. It has been confirmed that　4. subscribed firmly to　

5. take into account that

第二部分　能力提升练

Ⅰ. 【语篇解读】本文是一篇说明文。未来生物医学机器人可以帮助更多残疾人走路或重见光明。

1. highly　考查副词。所填词修饰advanced（形容词），应用副词修饰形容词，故填highly。
2. a　考查冠词。professor为可数名词，第一次出现，用不定冠词修饰，professor读音的第一个音素为辅音音素，故填a。
3. be done　考查被动语态。主语为a lot of work，是动词do的承受者，所以用被动语态。must为情态动词，后跟动词原形，故填be done。
4. made　考查时态。根据时间状语可知谓语动词要用过去式，故填made。
5. existing/existent　考查形容词。所填词修饰名词problem，应用形容词修饰名词，故填existing或existent。
6. larger　考查形容词比较级。much修饰比较级，上句中出现的smaller and lighter也提示此处用比较级，故填larger。
7. that/which　考查定语从句。先行词a paper指物，关系代词在从句中作主语，故填that或which。
8. feel　考查动词。情态动词后跟动词原形，所填词与control并列，故填feel。
9. their　考查代词。on one’s own是固定搭配，意为“独自，单独”。
10. to recover　考查非谓语动词。空格处所填词作宾语补足语，allow sb. to do sth.是固定搭配，意为“允许某人做某事”，故填to recover。

Ⅱ. 【语篇解读】本文是一篇说明文。一项新的人工智能研究对人工智能持更为积极的态度，特别是在医疗保健领域，可能还有教育领域。文章介绍了这项研究开展的过程以及专家对人工智能的担忧。

1. C　推理判断题。根据第一段的描述可推知，本段提到斯蒂芬·霍金是为了证明伟大的科学家非常关心人工智能的未来。

2. B　细节理解题。根据第三段第一句可知，Pew征求了979位专家的意见，其中包括著名的技术专家、开发人员、创新者、企业和政策领袖，所以B选项“Pew向不同领域的专家征求意见”正确。

3. C　推理判断题。根据最后一段中的最后两句可知，一些专家担心“黑盒子”工具是因为它们可能会削弱我们独立思考的能力。

4. A　主旨大意题。根据最后一段的描述可知，此段主要讲了专家对人工智能的担忧。

Ⅲ. 【语篇解读】本文是一篇记叙文。作者与丈夫在过生日和纪念日时都会互相写信并交换。作者将这些珍贵的信件都保存在日记本里，而在他们第18个纪念日时作者却意外丢失了日记本。作者很失落，但从未放弃过找回的希望。有一天一对夫妇前来归还了作者的日记本，这让作者感慨万分。

1. C　由后文得知，作者在一次野营时丢失了日记本，因此感到失落（loss），忍不住去想她的日记本。

2. B　作者和丈夫在过生日和纪念日时会互相写信，而不是（instead of）彼此赠送贺卡。apart from除了；regardless of不管；as for至于。

3. D　结合前文描述的Adlai and I wrote letters可知，作者和丈夫正是要在第18个纪念日上交换（exchange）信件。send发送；discuss讨论；spread传播。

4. A　营地被一头熊给破坏（destroy）了，帐篷也倒了。watch观看；lock锁住；examine检测。

5. B　由下文的We searched for hours可知，应该是对作者来说非常重要的日记本不见了（miss），作者去寻找，所以觉得很糟糕。

6. A　由but可知，丢失的日记本并没有找到，这个结果显然是让作者感到绝望的（hopeless）。successful成功的；dangerous危险的；safe安全的。

7. C　由下一句“I always wanted to have back those nine years of letters!”作者表达的决心不难看出，作者没有放弃（give up）过找回日记本。get away逃脱，离开；set out出发；come back回来。

8. D　由后文内容可知，是一对夫妇捡到了作者的日记本前来归还，他们对于作者来说是陌生人（stranger）。friend朋友；customer顾客；relative亲戚。

9. A　句意：这位女士和她丈夫几周前在灌木丛里发现了它。该句描述的是这对夫妇发现（discover）作者的日记本的时间和地点。hide隐藏；return返回；pass通过。

10. B　根据人之常情判断，读了作者多年来写给丈夫的充满爱意的信，应该会为这真挚的感情而感动（moved）。satisfied满意的；tired疲劳的；scared害怕的。

11. D　句意：我们只有你们的名字，所以找到你们还挺困难的（difficult）。easy容易的；interesting有趣的；boring无聊的。

12. D　空前使用了形容词性物主代词their，显然指归还日记本的夫妇，而作者能拿回日记本正是他们付出努力（effort）的结果。need需求；experiment试验；project项目。

13. A　本段是作者对失物复得经历的感想，这里要表达的就是世界上有很多像归还他们日记本的夫妇这样的人，他们对别人表现出善意（kindness）。understanding理解；encouragement鼓励；protection保护。

14. D　not necessarily意为“未必，不一定”。partly一定程度上；equally平等地；secretly秘密地。

15. B　该句要表达的是那对夫妇归还日记本不一定会改变作者和她丈夫的生活，但一定会改变他们对生活的感受（feel）。