专题03 阅读理解I 主旨大意题 考点1 精确归纳标题 2022年英语二轮复习讲 练 测 -练案

专题03 阅读理解I 主旨大意题 

考点1  精确归纳标题--讲•练•测---练案

时间：30分钟  满分：30

1. B【广东省汕头市金山中学2021-2022学年高三年级阶段性测试（一模）】

For as long as I can remember, my body and I have shared a relationship of discontent. Growing up, I was skinnier than the other kids and at five I was told I wasn't attractive and that I must put on some weight. But no matter how much I ate, I stayed thin for years until adolescence. Then I started putting on weight almost immediately. I remember feeling happy as I began to fill out. However, my joy didn't last long.

I was thirteen when I was first called fat. Friends and neighbours would make jokes on my big size. As I entered my late teens, I had completely lost confidence in my body and, subsequently, in myself. Having failed to live up to conventional beauty standards, I was convinced that if I wanted to be loved, I needed to offer more, doing anything to please everyone around.

I entered adulthood thinking I wasn't “enough”—an idea that was seeded not only by the fact that “skinny” is celebrated, but also by the language associated with accounts of losing weight—self­improvement, discipline—all virtues. Being fat quickly categorizes you as lazy and undisciplined. Consumed by thoughts of the way my body looked, I didn't notice the other ways my body needed attention. I failed to realize, for example, that my period was much heavier and more painful than ever before. Actually I developed a rare disease and later I had two surgeries.

I was always made to feel that my weight was the root of a lot of problems in my life; I have learnt this is not true. After a lot of self­reflection and some professional help, I realized I never learnt to like myself. While two decades of self­hatred cannot be undone overnight, I have taken first steps to acceptance.

I am now much lighter than before, in body and mind. There are days I find voices on social media saying I am too fat to be loved or to be worthy, but I am learning not to focus on that thought for long. As long as I like myself, just the way I am, opinions at the end of the day are just water off a duck's back.

1．What can we learn about the author from the first two paragraphs?

A．She could change her weight at will.

B．She had different beauty standards from others.

C．She tried to love others to build her confidence.

D．She was greatly influenced by others' opinions.

2．Why did the author think she wasn't “enough”?

A．She was poorly disciplined.

B．She failed to celebrate “skinny”．

C．She was labelled as lazy for her weight.

D．She put on more weight after entering adulthood.

3．What caused the author to make a change?

A．Her lighter body. B．A troublesome illness.

C．Popular beauty standards. D．Others' critical comments.

4．What is the best title for the text?

A．Beauty matters. B．Opinions vary.

C．Worth your weight. D．Beyond your limits.

【答案】1．D2．C3．B4．C

【解析】这是一篇记叙文的文章。作者由于体重偏重一直处于自卑的心理状态，所以拼命减肥，直到一场重病让她清醒过来，开始接受自己的体重，爱护自己。

1．细节理解题。根据第二段“Having failed to live up to conventional beauty standards, I was convinced that if I wanted to be loved, I needed to offer more, doing anything to please everyone around.（由于没有达到传统的美的标准，我确信如果我想要被爱，我需要付出更多，做任何事情来取悦周围的人。）”中的to please everyone around可知，作者深受周围人的看法的影响。故选D项。

2．推理判断题。根据第三段“I entered adulthood thinking I wasn't “enough”—an idea that was seeded not only by the fact that “skinny” is celebrated, but also by the language associated with accounts of losing weight—self­improvement, discipline—all virtues. Being fat quickly categorizes you as lazy and undisciplined.（我进入了成年期，认为自己“不够”——这个想法的萌芽，不仅是因为“瘦”受到称赞，还因为与减肥相关的语言——自我改善、自律——都是美德。肥胖很快就会把你归类为懒惰和无纪律的人。）”中的lazy and undisciplined可知，由于肥胖，作者还被贴上了懒惰（lazy）和无纪律的标签。故选C项。

3．推理判断题。根据第三段“I failed to realize, for example, that my period was much heavier and more painful than ever before. Actually I developed a rare disease and later I had two surgeries.（例如，我没有意识到，我的生理期比以往任何时候都更沉重和痛苦。事实上，我得了一种罕见的疾病，后来做了两次手术。）”中的disease以及第四段“I was always made to feel that my weight was the root of a lot of problems in my life; I have learnt this is not true.（我总是觉得我的体重是我生活中许多问题的根源; 我已经知道这不是真的。）”中的I have learnt this is not true可知，由于生病作者已经意识到体重不是自己问题的根源。再结合第四段最后“I have taken first steps to acceptance.（但我已经迈出了接受现实的第一步。）”作者做出了改变。由此推测，是生病让作者决心做出改变。故选B项。

4．主旨大意题。通读全文，特别是根据最后一段“There are days I find voices on social media saying I am too fat to be loved or to be worthy, but I am learning not to focus on that thought for long.（有时候我会在社交媒体上看到一些声音，说我太胖了，不值得被爱，但是我正学着不要长时间地关注这个想法。）”可知，作者主要想表达接受自己原本的体重，并学会爱自己。C项“你的体重有价值”符合题意，适合作标题。故选C项。

2.D【贵州省贵阳市2021-2022学年高三适应性考试一（一模）】

Nutrient shortages might not be the result of poor diet. A study from 2004 showed that many fruits and vegetables contain less protein, iron, calcium, and vitamin C than they did in the1950s, though carbohydrate levels have increased over the same time length. While some researchers think this difference is explained by farmers growing sweeter cultivar, others believe a bigger factor is at play— Earth’s changing atmosphere.

Earth’s atmospheric carbon dioxide levels are rising. Within the next 50 years, carbon dioxide concentrations are expected to reach 550 parts per million, which is about double the amount measured before the mid—19th century. Farming will be greatly affected: Research shows that raised carbon dioxide levels will affect 95 percent of plant species—including main crops, such as wheat, rice, and potatoes by causing essential mineral levels to drop by 6 to 8 percent. Though this decline may sound negligible, it will have far—reaching consequences for global health.

The influences of an increasingly carbon-concentrated atmosphere were first observed in zooplankton, microscopic sea creatures that primarily feed on algae. Rising carbon dioxide levels could also have a similar effect on land plants’ nutritional value. When they can more easily transform sunlight into food, plants pack in a higher concentration of carbohydrates at the expense of protein, zinc, iron, and other essential nutrients.

Will the increase of carbohydrates and consequent decrease of other nutrients in your meals make a difference for your health? According to some evidence, yes. Nutrient-rich plants are vital for fighting against health problems around the world, and lower levels in natural sources put populations at risk. For instance, studies show that 150 million people may be at risk for protein shortage by 2050, and iron shortage may affect a billion pregnant women within the same time period.

5．What causes the nutrient shortages in food?

A．Poor dict. B．Changing atmosphere. C．Farm produce. D．Time length

6．What will happen in the next 50 years?

A．Carbon dioxide will be double than that at present.

B．Carbon dioxide of plant species will increase 95%.

C．Plants’ mineral levels will drop by 6 to 8 percent.

D．Plants species will reach 550 times as much.

7．What is the influence of nutrient-less plants to people?

A．Lack of protein levels. B．Lack of natural sources.

C．Lack of pregnant women. D．Lack of carbohydrates.

8．What would be the best title for this passage?

A．Earth’s Atmospheric Carbon Dioxide Level B．Climate Change and Plant Nutrient Levels

C．More Food Leading to Better Health D．Natural Resources and Carbohydrate

【答案】5．B6．C7．A8．B

【解析】这是一篇说明文。文章主要说明了大气变化导致了植物缺乏营养，将对全球卫生产生深远的影响。文章介绍了大气变化是如何影响植物的以及植物缺乏营养会对人类造成的影响。

5．细节理解题。根据第一段中“While some researchers think this difference is explained by farmers growing sweeter cultivar, others believe a bigger factor is at play— Earth’s changing atmosphere.(虽然一些研究人员认为这种差异是由于农民种植了更甜的品种，但其他人认为更大的因素在起作用——地球的大气变化)”可知，大气变化导致了食物的营养短缺。故选B。

6．细节理解题。根据第二段中“Within the next 50 years, carbon dioxide concentrations are expected to reach 550 parts per million, which is about double the amount measured before the mid—19th century. Farming will be greatly affected: Research shows that raised carbon dioxide levels will affect 95 percent of plant species—including main crops, such as wheat, rice, and potatoes by causing essential mineral levels to drop by 6 to 8 percent.(在接下来的50年里，二氧化碳浓度预计将达到百万分之550，大约是19世纪中期之前测量值的两倍。农业将受到极大影响：研究表明，二氧化碳水平的提高将影响95%的植物物种——包括主要作物，如小麦、水稻和土豆，导致必需矿物质含量下降6%至8%)”可知，未来50年植物的矿物质含量将下降6%到8%。故选C。

7．细节理解题。根据最后一段中“Nutrient-rich plants are vital for fighting against health problems around the world, and lower levels in natural sources put populations at risk. For instance, studies show that 150 million people may be at risk for protein shortage by 2050, and iron shortage may affect a billion pregnant women within the same time period. (富含营养的植物对于对抗世界各地的健康问题至关重要，而天然来源的营养素水平降低使人口处于危险之中。例如，研究表明，到2050年，1.5亿人可能面临蛋白质短缺的风险，而铁的短缺可能在同一时期影响10亿孕妇)”可知，缺乏营养的植物会造成人类蛋白质水平缺乏。故选A。

8．主旨大意题。根据第一段中“A study from 2004 showed that many fruits and vegetables contain less protein, iron, calcium, and vitamin C than they did in the1950s, though carbohydrate levels have increased over the same time length. While some researchers think this difference is explained by farmers growing sweeter cultivar, others believe a bigger factor is at play— Earth’s changing atmosphere.( 2004年的一项研究表明，与20世纪50年代相比，许多水果和蔬菜所含的蛋白质、铁、钙和维生素C都减少了，尽管碳水化合物含量在同一时期有所增加。虽然一些研究人员认为这种差异是由于农民种植了更甜的品种，但其他人认为更大的因素在起作用——地球的大气变化)”结合文章主要说明了大气变化导致了植物缺乏营养，将对全球卫生产生深远的影响。文章介绍了大气变化是如何影响植物的以及植物缺乏营养会对人类造成的影响。可知，B选项“气候变化和植物营养水平”最符合文章标题。故选B。

3.B【河北省衡水中学2021-2022学年高三年级上学期六调考试】

Even though some people believe that money makes the world go around, many people would choose health over wealth. For someone like violinist Robert Gupta, who was on his way to becoming a physician before joining the Los Angeles Philharmonic at age 19, music, health, and wealth are all part of the same package.

In addition to music, Gupta is deeply interested in neurobiology Because of his interests, he has had the chance to work with Nathaniel Anthony Ayers, a talented musician whose career was sidelined by schizophrenia. Although Ayers studied music at the Juilliard School York City, his mental illness got in the way of professional success.

After dropping out of Julliard and having unsuccessful medical treatment for his schizophrenia, Ayers moved to Los Angeles where he ended up homeless. In 2005, a journalist for the Los Angeles Times named Steve Lopez heard Ayers playing music in the streets. Lopez wrote a book about Ayers and became his friend. Their friendship became the subject of a movie, and because of the book and the movie, Ayers has had a chance to perform his music in some of the most famous concert halls in the world.

It seemed like Ayers had found his happy ending. However, he refuses to take medication to treat his schizophrenia. He says it keeps him from “hearing the music”. Because of this, Ayers is still subject to schizophrenia and sometimes leaves his home to go back to the streets.

Gupta was introduced to Ayers after Lopez took his friend to a performance of Beethoven’s First and Fourth symphonies, and Ayers asked Gupta for a violin lesson. When they first met, Ayers was on edge. Gupta was afraid that if he taught the lesson in his usual way, Ayers would react violently. Finally, he just began playing. A change came over Ayers. Gupta said, “And m a miracle, he lifted his own violin and he started playing.” The two musicians played many violin pieces together that day. A bond was formed.

Music, Gupta realized, is a way to deal with our emotions, even our most unpleasant ones. “This was the very reason why we made music through our creativity, we’re able to shape those emotions into reality,” he says.

Now, Gupta says, “I will always make music with Nathaniel, whether we’re at Walt Disney Concert Hall or on Skid Row, because he reminds me why I became a musician.”

9．From the first two paragraphs, we can learn that Robert Gupta________.

A．became a physician at the age of 19

B．was interested in the treatment of schizophrenia

C．was lucky to be wealthy, healthy and talented in music

D．had long dreamed to join the Los Angeles Philharmonic

10．Ayers got the chance to perform in some famous concert halls thanks to________.

A．Steve Lopez’s book and a movie about their friendship

B．his great efforts to fight against his mental illness

C．Robert Gupta’s original way of teaching music

D．his talent in composing and playing music

11．By “on edge” (in paragraph 5), the author means that Ayers was________.

A．excited but uncertain B．eager for a violin lesson

C．nervous and bad-tempered D．anxious about his own career

12．Which of the following might be the best title of the passage?

A．A Great Musician B．Teaching Music

C．Why Study Music D．Music Is Medicine

【答案】9．B10．A11．C12．D

【解析】这是一篇记叙文。文章主要讲述了小提琴家Robert Gupta因为对神经生物学感兴趣，有机会和Nathaniel Anthony Ayers一起工作，Ayers患有精神分裂症，Gupta为Ayers演奏小提琴，使Ayers的病情有所好转。Gupta意识到，音乐是一种处理情绪的方式，即使是最不愉快的情绪。

9．细节理解题。根据第二段中“In addition to music, Gupta is deeply interested in neurobiology Because of his interests, he has had the chance to work with Nathaniel Anthony Ayers, a talented musician whose career was sidelined by schizophrenia.(除了音乐，Gupta对神经生物学非常感兴趣，因为他的兴趣，他有机会与Nathaniel Anthony Ayers一起工作，一个有天赋但职业生涯被精神分裂症边缘化的音乐家)”可知，Robert Gupta对精神分裂症的治疗感兴趣。故选B。

10．细节理解题。根据第三段中“Lopez wrote a book about Ayers and became his friend. Their friendship became the subject of a movie, and because of the book and the movie, Ayers has had a chance to perform his music in some of the most famous concert halls in the world.(Lopez写了一本关于Ayers的书，并成为了他的朋友。他们的友谊成了一部电影的主题，因为这本书和这部电影，Ayers有机会在世界上一些最著名的音乐厅演奏他的音乐)”可知，因为Lopez的书和一部关于他们友谊的电影，Ayers有机会在一些著名的音乐厅演出。故选A。

11．词句猜测题。根据划线词后文“Gupta was afraid that if he taught the lesson in his usual way, Ayers would react violently.”可知，Gupta担心，如果他以惯常的方式给Ayers上课，他会做出激烈的反应，可见他们第一次见面时，Ayers很紧张。故划线词意思是“紧张易怒的”。故选C。

12．主旨大意题。根据倒数第二段“Music, Gupta realized, is a way to deal with our emotions, even our most unpleasant ones. “This was the very reason why we made music through our creativity, we’re able to shape those emotions into reality,” he says.( Gupta意识到，音乐是一种处理情绪的方式，即使是最不愉快的情绪。“这就是我们通过创造力创作音乐的原因，我们能够将这些情感塑造成现实，”他说)”结合文章主要讲述了小提琴家Robert Gupta因为对神经生物学感兴趣，有机会和Nathaniel Anthony Ayers一起工作，Ayers患有精神分裂症，Gupta为Ayers演奏小提琴，使Ayers的病情有所好转。Gupta意识到，音乐是一种处理情绪的方式，即使是最不愉快的情绪。由此可知，D选项“音乐是良药”最符合文章标题。故选D。

4.C【河北省衡水中学2021-2022学年高三年级上学期六调考试】

Doing your laundry with cold water can help save the planet, and maybe save you some money along the way. That’s the message from Tide in a newly launched campaign to decarbonize laundry. The goal is for consumers in North America to do three out of every four loads of laundry with cold water instead of hot by 2030, up from about half today. That would eliminate the power consumption required to heat cold water.

If this goal is met, it will have the same impact on greenhouse gas emissions as removing about a million cars from the road for a year. “There is no tradeoff. You will save 150 a year in energy costs, your garments will last longer. And by the way, you’re helping to save the planet,” Shailesh Jejurikar, CEO of Procter & Gamble’s fabric and home care division, said in an interview. “It’s a beautiful win-win-win if we get this right.”

“This is going to be the defining decades for where we end up on climate change,” Jejurikar said. “If we don’t get this situation under control in the coming years, we are going to pay the price. There is a need to act now.” Beyond its focus on cold-water washing, Tide set a new goal of cutting greenhouse gas emissions at its factories in half by 2030. That’s in addition to the progress it already has made cutting emissions by three-quarters over the past decade as the brand adopted 100% renewable energy at its manufacturing plants. Tide also plans to reduce its carbon footprint by using 100% recyclable packaging for all products by 2030 and by teaming up with Silicon Valley startup Opus12 to capture carbon from its factories.

Jejurikar said P&G does want to get to zero emissions in its factories, but added that how people use Tide products has 10 times more impact than what happens in its plants. “We are trying to give them chance to take their ordinary daily actions, and make them have an extraordinary impact,” Jejurikar said.

13．What can we learn from the passage?

A．We need to heat cold water before laundry.

B．Tide will remove a million cars from the road.

C．Hot water laundry could save energy and protect the planet.

D．Cold water laundry might increase by a quarter in North America.

14．Which word can be used to replace “tradeoff” in Paragraph 2?

A．advantage. B．need. C．hesitation. D．emission.

15．Which measure has been taken by Tide to cut greenhouse emission so far?

A．Advertising for its new products.

B．Using 100% recyclable packaging for all products.

C．Adopting completely renewable energy in its factories.

D．Cooperating with a new High-Tech company to recycle carbon.

16．What can be a suitable title for the text?

A．Cold Water Laundry—An Eco-friendly Campaign

B．Advanced Technology Being Applied to Cars

C．The Vital Decades for Climate Change

D．Cutting Emission to Protect Our Planet

【答案】13．D14．C15．C16．A

【解析】本文是一篇说明文。文章主要介绍了汰渍新推出的脱碳洗衣活动，该计划的目标是，到2030年，北美消费者每四件衣服中有三件是用冷水洗的，节约能源成本，拯救地球。

13．推理判断题。根据第一段第三句“The goal is for consumers in North America to do three out of every four loads of laundry with cold water instead of hot by 2030, up from about half today.（汰渍新推出的脱碳洗衣活动所传达的信息。该计划的目标是，到2030年，北美消费者每四件衣服中有三件是用冷水洗的，而不是用热水洗的，目前这一比例约为一半。）”可以推断，冷水洗衣比例可能会提高四分之一。故选D项。

14．词句猜测题。根据第二段第二句“You will save 150 a year in energy costs, your garments will last longer. And by the way, you’re helping to save the planet（“你一年可以节省150英镑的能源成本，你的衣服可以穿得更久。顺便说一句，你正在帮助拯救地球”）”可以推断出，作者是鼓励用冷水洗衣服的，此处hesitation表示“犹豫”，符合画线词词义，表示“别犹豫”。故选C项。

15．细节理解题。根据第三段第四句“That’s in addition to the progress it already has made cutting emissions by three-quarters over the past decade as the brand adopted 100% renewable energy at its manufacturing plants.（此外，在过去10年里，由于该品牌的工厂采用了100%的可再生能源，其排放量已经减少了四分之三。）”可知，汰渍工厂已经全面采用可再生能源。故选C项。

16．主旨大意题。根据第一段第二句“That’s the message from Tide in a newly launched campaign to decarbonize laundry.（这是汰渍新推出的脱碳洗衣活动所传达的信息。）”以及全文，文章主要介绍了汰渍新推出的脱碳洗衣活动，因此A选项Cold   Water   Laundry—An   Eco-friendly   Campaign（冷水洗衣——一项环保运动）最为符合。故选A项。

5.B【河南省焦作市普通高中2021-2022学年高三年级第一次模拟】

Harry Potter, Thor, a baseball player, and a gentleman in a bowler hat. Logan Houghtelling turned into all of them, in class and way before Halloween—all to bring some cheer to his own life and the lives of his friends.

Life was difficult for the San Francisco Bay area teenager. He worried about his father, a firefighter who was battling wildfires, and missed his friends during the pandemic. “I thought, ‘Well, I know other people are feeling like this. So, why don’t I dress up and try to bring happiness to people?’”

So starting in August, he set out to cheer up his classmates, his family and others who have come to wonder what he’ll wear next for his classes on Zoom. One day, he popped up on screen in a toga(宽袍) and a golden leaf crown; another day, he put on a cowboy hat and a western shirt. In September, he wore the uniform of the Chicago Cubs. He even dressed up as a bottle of sriracha sauce. “I’ve had two teachers who just couldn’t help laughing and couldn’t go on with their lectures,” the 15-year-old said.

Most ideas come from Halloween costumes that he wore previously and clothes from around the house that he adapted with the help of his mother, Meredith Christensen, a primary school teacher. “I’ve actually had friends who I’ve come across in the grocery store that are saying, ‘You haven’t been posting his pictures lately. I look forward to his pictures every day,’” she said.

The Arroyo High School sophomore has also made special appearances elsewhere. While his 12-year-old brother Cody attended a virtual class, he dropped by in the background as the titular(名义上的) character of the “Where’s Waldo?” books.

Houghtelling said that it’s important to try to focus on the positive and help lift others up. “I think there should be people who go out and bring people happiness,” he said. “More people need to do that. We just need to spread positivity.”

17．What’s the purpose of Houghtellingf’s dressing up?

A．To help his father. B．To make people around happy.

C．To prepare for Halloween. D．To play the role of Harry Potter.

18．Why did the two teachers suddenly stop teaching in class?

A．They met with technical problems.

B．They saw some sriracha sauce on screen.

C．They were interrupted by Houghtelling’s questions.

D．They were amused by Houghtelling’s way of dressing.

19．What’s Meredith Christensen’s attitude to her son’s behavior?

A．Worried. B．Annoyed. C．Supportive. D．Carefree.

20．Which of the following can be the best title for the text?

A．Harry Potter costumes attract more students. B．Keep positive during the times of pandemic.

C．Teenager wears costumes to cheer others up. D．Spirits lifted in high school before Halloween.

【答案】17．B18．D19．C20．C

【解析】这是一篇新闻报道。文章主要讲述了一个叫做Logan Houghtelling的男孩装扮成不同的人物和角色给其他人带来欢乐的故事。

17．细节理解题。根据文章第一段内容“Logan Houghtelling turned into all of them, in class and way before Halloween—all to bring some cheer to his own life and the lives of his friends.(Logan Houghtelling在课堂上和万圣节前夕都变成了他们——所有这些都给他自己和他朋友的生活带来了一些欢乐。)”可知，他的装扮是为了给自己和朋友的生活带来欢乐。故选B项。

18．细节理解题。根据文章第三段内容“In September, he wore the uniform of the Chicago Cubs. He even dressed up as a bottle of sriracha sauce. ‘I’ve had two teachers who just couldn’t help laughing and couldn’t go on with their lectures,’ the 15-year-old said.( 9月，他穿着芝加哥小熊队的队服。 他甚至装扮成一瓶斯拉查酱。这位15岁的学生说：“我曾经遇到过两位老师，他们都忍不住大笑，没法继续讲课。”)”可知，他的装扮使得老师忍不住大笑以致于无法继续上课。故选D项。

19．推理判断题。根据文章第四段内容“Most ideas come from Halloween costumes that he wore previously and clothes from around the house that he adapted with the help of his mother, Meredith Christensen, a primary school teacher. ‘I’ve actually had friends who I’ve come across in the grocery store that are saying, ‘You haven’t been posting his pictures lately. I look forward to his pictures every day,’ she said.(大多数创意来自他以前穿过的万圣节服装，以及他在母亲Meredith Christensen的帮助下改编的家里的衣服。“事实上，我在杂货店遇到的一些朋友说，‘你最近没有上传他的照片。我每天都期待着他的照片，”她说。)”可知，妈妈Meredith Christensen不仅帮助改编了装扮用的衣服还会在社交账号上上传他的照片，由此可推知，妈妈Meredith Christensen对于他的行为和装扮是支持的。故选C项。

20．主旨大意题。通过阅读文章内容可知，文章首段揭示了文章话题，“Harry Potter, Thor, a baseball player, and a gentleman in a bowler hat. Logan Houghtelling turned into all of them, in class and way before Halloween—all to bring some cheer to his own life and the lives of his friends.(哈利·波特，托尔，一个棒球运动员，和一个戴圆顶礼帽的绅士。Logan Houghtelling在万圣节前夕的课堂上变成了他们中的所有人——都是为了给他自己和他朋友的生活带来一些欢乐。)”，即，文章主要讲述了一个叫做Logan Houghtelling的男孩装扮成不同的人物和角色给其他人带来欢乐的故事。选项C“Teenager wears costumes to cheer others up.(青少年穿着戏服去鼓舞别人。)”贴合主旨，可作最佳标题。故选C项。