2022届高三英语二轮复习阅读理解及七选五专项限时训练三 （含答案）
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| 名称 | 2022届高三英语二轮复习阅读理解及七选五专项限时训练三 （含答案） |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2022-03-27 12:45:35 | ||
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阅读理解及七选五专项限时训练三
阅读理解（共两节，满分50分）
第一节：（共15个小题；每小题2.5分，满分37.5分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
A
Independence is something that can be difficult to achieve. But don’t worry because here we have four books that can help you. If you don’t buy less than three of them, you’ll be given a 20% discount!
The Total Money Makeover by Dave Ramsey
Taking care of your finance is hard. Dave Ramsey, a famous businessman, is here to take you on the whole process of planning your finance, and show the myths of cash advances and debt consolidation (债务重整), to make sure your finance is healthy.
Price: $14.49
Grace’s Guide by Grace Helbig
Grace Helbig shared her tips to becoming a grown-up. The book is full of personal stories of Helbig, her struggles and the lessons she learnt from failing many times. This book is your on-the-go fun read with pictures and drawings of Helbig, and worksheets (作记录) to practice.
Price: $7.95
The Oh She Glows Cookbook by Angela Liddon
Having suffered from eating disorder and living on diet, Angela Liddon promised to eat healthily forever. She threw out her fat-free butter spray (黄油喷雾) and low-calorie frozen dinners after learning how to properly cook. This book contains more than 100 recipes (食谱) covering breakfast, salads, soups, power snacks and the main dishes for a healthy meal at any time of the day. We all know that healthy eating is all part of being independent.
Price: $22.22
Tiny Beautiful Things by Cheryl Strayed
Life can be hard, especially when it comes to relationships with others. In the book, Strayed gives advice on love and life. She writes about different subjects: a son rejected by his parents, a mother who has lost her child. And the message hidden throughout all her advice is always that, if you want a good life, you have to create it.
Price: $8.76
21. How much will you save at least if you buy three of the listed books
A. $5.68. B. $6.24. C. $8.95. D. $9.10.
22. What is special for the book Grace’s Guide
A. It is about how to grow up healthily.
B. It is mainly about how to work better.
C. It is based on its author’s life experience.
D. It teaches readers to learn from others’ life stories.
23. Which book should you choose for someone who is bad at getting along with others
A. Grace’s Guide.
B. Tiny Beautiful Things.
C. The Total Money Makeover.
D. The Oh she Glows Cookbook.
B
Tech giants Apple and Google are teaming up to create a system that would let smart phone users know when they've come into contact with someone who has COVID-19.
The technology would rely on the Bluetooth signals that smart phones can both send out and receive 1aperscn tests positive(阳性) for COVID-19, they could inform public health authorities through an app. Those public health apps would then warn anyone whose smart phones bad come tear the infected person's phone in the previous 14 days. The technology could be used on both Google Android phones and Apple iPhones.
The companies insist that they will preserve smart phone users' privacy and their technology will be used only by public health authorities to trace the spread of COVID-19. Smart phone users can choose to use it. The software will not collect data on users' physical locations or their personally identifiable information. People who test positive would remain unknown to the public, both to the people who came in contact with them and to Apple and Google. “Privacy is of greatest importance in this effort,” the companies said in a joint statement.
The American Civil Liberties Union has warmed that using cellphone data to handle the pandemic carries risks of “destruction of privacy”. In a statement on Friday, ACLU cyber security counsel Jennifer Granick said, The system also can't work well if people don’t trust it”. She said that the joint Apple and Google project “appears to reduce the worst privacy risks, but there is still room for improvement.” She added that the contact tracing app should be used only for public health purposes and only for the duration of this pandemic.
Public health officials say the contact tracing -finding people who have been in contact with an infected person will be a key step in lifting shelter in-place restrictions
It would allow people who are known to have been exposed to the virus to isolate themselves, while letting others recover normal activities.
24. What is the main purpose of the passage
A. To advertise for public health.
B. To introduce a contact tracing system.
C. To warn the public of risks of COVID-19.
D. To raise people's awareness of privacy protection.
25. What do the companies promise to do in particular
A. Warn people who test positive.
B. Protect infected people's privacy.
C. Work with public health authorities.
D. Collect data on users physical locations.
26. What does the underlined sentence in Paragraph 4 suggest
A. Public health issues are traced accurately.
B. Only people's trust influences the system.
C. The system is at the risk of being destroyed.
D. Jennifer thinks the system should be better.
27. The system is mainly designed to .
A. ensure infected people's recovery
B. guarantee people's normal activities
C. help prevent the spread of COVID-19
D. encourage all the people to isolate themselves
C
The U.S. Postal Service (USPS) continues to bleed red ink. It reported a net loss of $5.6 billion for fiscal 2016, the 10th straight year its expenses have exceeded revenue. Meanwhile, it has more than $120 billion in unfunded liabilities, mostly for employee health and retirement costs. There are many bankruptcies. Fundamentally, the USPS is in a historic squeeze between technological change that has permanently decreased demand for its bread-and-butter product, first-class mail, and a regulatory structure that denies management in the flexibility to adjust its operations to the new reality.
And interest groups ranging from postal unions to greeting-card makers exert self-interested pressure on the USPS’s ultimate overseer-Congress-insisting that whatever else happens to the Postal Service, aspects of the status quo they depend on get protected. This is why repeated attempts at reform legislation have failed in recent years, leaving the Postal Service unable to pay its bills except by deferring vital modernization.
Now comes word that everyone involved—Democrats, Republicans, the Postal Service, the unions and the system’s heaviest users—has finally agreed on a plan to fix the system. Legislation is moving through the House that would save USPS an estimated $28.6 billion over five years, which could help pay for new vehicles, among other survival measures. Most of the money would come from a penny-per-letter permanent rate increase and from shifting postal retirees into Medicare. The latter step would largely offset the financial burden of annually pre-funding retiree health care, thus addressing a long-standing complaint by the USPS and its union.
If it clears the House, this measure would still have to get through the Senate—where someone is bound to point out that it amounts to the bare, bare minimum necessary to keep the Postal Service afloat, not comprehensive reform. There’s no change to collective bargaining at the USPS, a major omission considering that personnel accounts for 80 percent of the agency’s costs. Also missing is any discussion of eliminating Saturday letter delivery. That common-sense change enjoys wide public support and would save the USPS $2 billion per year. But postal special-interest groups seem to have killed it, at least in the House. The emerging consensus around the bill is a sign that legislators are getting frightened about a politically embarrassing short-term collapse at the USPS. It is not, however, a sign that they’re getting serious about transforming the postal system for the 21st century.
28. The financial problem with the USPS is caused partly by __________.
A. its unbalanced budget
B. its rigid management
C. the cost for technical upgrading
D. the withdrawal of bank support
29. The long-standing complaint by the USPS and its unions can be addressed by ________.
A. removing its burden of retiree health care
B. making more investment in new vehicles
C. adopting a new rate-increase mechanism
D. attracting more first-class mail users
30. In the last paragraph, the author seems to view legislators with __________.
A. respect B. tolerance C. discontent D. gratitude
31. Which of the following would be the best title for the text
A. The USPS Starts to Miss Its Good Old Days.
B. The Postal Service: Keep Away from My Cheese.
C. The USPS: Chronic Illness Requires a Quick Cure.
D. The Postal Service Needs More than a Band-Aid.
D
One of the classic science-fiction treatments of the end of civilization was The Death of Grass, by John Christopher, in which a mysterious sickness struck down all the grasses on which most of the world's agriculture is based, from rice to wheat. Tn the end, politics among the survivors of disease, war and famine were reduced to bitter fratricidal struggle over a defensible potato patch. Like most of the so-called ''comfortable disaster" novels, this could be criticized for optimism. Depressing as a future of famine and the war of all against all might seem, the consequences were largely limited to humans.
However, the threatened extinction of insect populations around the world raises the prospect of a much less general disaster, which would involve plants, birds, fish, small mammals, and everything else depending on insects. That's just the start. Other species, and we ourselves, depend on the animals and plants that need insects. When they go, we go. This is not just a greater disaster. It's a much more reasonable one. The most recent study has concluded that insect biomass is decreasing around the world at a rate of 2.5% a year. At that rate, half the insects in the world will be gone in 50 years' time, and all of them in a century — though no one will be keeping track of centuries then.
The chief driver of this disaster is unchecked human greed. I spite our individual and even collective cleverness, we behave as a species with as little foresight as a colony of nematode worms that will consume everything that it can reach until all is gone and it dies off naturally. The challenge of behaving more intelligently than creatures that have no brain at all will not be easy. But unlike the nematodes, we know what to do. The UN convention on biodiversity was signed in 1992, alongside the convention on climate change. Giving it the strength to hold back our appetites is now urgent. Biodiversity is not an optional extra. It is the web that holds all life, including human life.
The two main expressions of greed that speed this apocalypse are global warming and industrial agriculture. It appears that most of the damage is being done in the developed world by farming practices. The use of giant fields, lack of shelter for insects of any sort at all, whether they are harmful to human interests or not, and where the plants are drenched in long-lasting pesticides, is fatal for uncounted billions of insects. The effects of this kind of forming reach beyond the fields immediately affected, too. There has been a huge loss of aquatic insect species from the rivers into which the products of industrial agriculture are flushed by rain. Even in German nature reserves, which are by definition protected from the use of pesticides, there have been sleep falls in insect populations because so many of the most widely used ones are persistent and prevent breeding.
32. Which of the following statements about The Death of Grass is true
A. It holds an optimistic attitude towards famine in the future.
B. It understates the severity of the disaster facing the world.
C. It gives a vivid account of the most serious famine in history.
D. It demonstrates how evil human nature turns out to be.
33. In paragraph 2, the writer mentions the most recent study in order to________.
A. prove that the prediction about the great disaster makes sense
B. show how soon the insects worldwide will go extinct
C. argue for the necessity to protect insect populations
D. suggest a possible approach to increasing insect biomass
34. What can be inferred from the passage
A. Humans are similar to nematode in that both of them lack foresight.
B. We haven't done enough about maintaining biodiversity.
C. Modem farming is to blame for the threatened extinction of insects.
D. Germany sets a good example by minimizing the use of pesticides.
35. What will the author probably discuss after the last paragraph
A. How industrial agriculture brings about apocalypse.
B. What influence pesticides may have on people's lives.
C. Why insect populations in Germany are on the decline.
D. Where unchecked human greed can also by spotted.
第二节（共5小题；每小题2.5分，满分12.5分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Scientists and spiritual teachers alike agree that the simple act of smiling can transform you and the world around you. It can make us appear more attractive to others. ___36___ So before you read on, slap a nice, genuine smile on that face of yours.
How Smiling Affects Your Brain
The act of smiling activates neural messaging that benefits your health and happiness. For starters, smiling activates the release of neuropeptides (神经肽) that work toward fighting off stress. The feel-good neurotransmitters (神经介质) are all released when a smile flashes across your face as well. ___37___
How Smiling Affects Your Body
You’re actually better-looking when you smile. A study published in the journal Neuropsychologia reported that seeing an attractive, smiling face activates the region in your brain that processes sensory rewards. ___38___ It also explains the 2011 findings by researchers at the Face Research Laboratory. They found that both men and women were more attracted to images of people who made eye contact and smiled than those who did not.
___39___
Did you know that your smile is actually contagious (传染性的) In a Swedish study, subjects were shown pictures of several emotions: joy, anger and surprise. When the picture of someone smiling was presented, the researchers asked the subjects to frown. Instead, they found that the facial expressions went directly to what subjects saw.___40___ If they don’t, they’re making a conscious effort not to.
A. How Smiling Affects Those Around You
B. Each time you smile, you throw a little feel-good party in your brain.
C. So if you’re smiling at someone, it’s likely they can’t help but smile back.
D. And it can even lengthen our lives.
E. How Smiling Affects Your Facial Expressions
F. They not only relax your body, but also lower your heart rate and blood pressure.
G. This suggests that when you view a person smiling, you actually feel rewarded.
阅读理解及七选五专项限时训练三参考答案
阅读理解（共两节，满分50分）
第一节：（共15个小题；每小题2.5分，满分37.5分）
A
【答案】21. B 22. C 23. B
【解析】【分析】本文是一篇说明文。主要介绍了四本书，可以在如何独立方面帮助你。
【21题详解】细节理解题。根据第一段的If you don’t buy less than three of them, you’ll be given a 20% discount!如果你买至少3本书以上，就会得到20%的折扣，如果你买了三本书，至少能省（14.49+7.95+8.76）*0.2=6.24，至少能省$6.24。故选B。
【22题详解】细节理解题。根据Grace’s Guide by Grace Helbig部分的The book is full of personal stories of Helbig这本书充满了Helbig的个人故事，由此可知，《格雷斯指南》这本书的特别之处是基于作者的生活经历。故选C。
【23题详解】细节理解题。根据Tiny Beautiful Things by Cheryl Strayed部分的Life can be hard, especially when it comes to relationships with others. 生活可能会很艰难，尤其是当涉及到与他人的关系时。由此可知，对于不善于与人相处的人，你应该选择Tiny Beautiful Things这本书，故选B。
【点睛】同义转写，是高中英语阅读理解的文章和选项的表达手段。如第2小题应抓住题干中的“author’s life experience”和原文中的“personal stories”是异曲同工的效果，故能够迅速确定答案的位置。
B
【答案】24. B 25. B 26. D 27. C
【解析】【分析】这是一篇说明文。科技巨头苹果公司和谷歌公司正在合作开发一个系统，该系统可以让智能手机用户知道他们已经接触了COVID-19患者。文章介绍了这一技术的工作原理，开发这个系统的公司就用户隐私问题做出了一些声明，其他相关组织和个人对此表达了自己的看法。
【24题详解】推理判断题。根据第一段Tech giants Apple and Google are teaming up to create a system that would let smart phone users know when they've come into contact with someone who has COVID-19.可知科技巨头苹果公司和谷歌公司正在合作开发一个系统，该系统可以让智能手机用户知道他们已经接触了COVID-19患者。结合文章介绍了这一技术的工作原理，开发这个系统的公司就用户隐私问题做出了一些声明，其他相关组织和个人对此表达了自己的看法。由此可推知，这篇文章的主要目的是介绍一种COVID-19接触者追踪系统。故选B。
【25题详解】细节理解题。根据第三段The companies insist that they will preserve smart phone users' privacy and their technology will be used only by public health authorities to trace the spread of COVID-19. Smart phone users can choose to use it. The software will not collect data on users' physical locations or their personally identifiable information. People who test positive would remain unknown to the public, both to the people who came in contact with them and to Apple and Google. “Privacy is of greatest importance in this effort,” the companies said in a joint statement.可知这些公司坚称，他们将保护智能手机用户的隐私，而且他们的技术只会被公共卫生部门用于追踪COVID-19的传播。智能手机用户可以选择使用它。该软件不会收集用户的物理位置或个人身份信息。那些被检测为阳性的人将不会被公众所知，无论是接触过他们的人，还是苹果和谷歌公司。两家公司在一份联合声明中表示：“在这项努力中，隐私是最重要的。”由此可知，这些公司承诺保护感染者的隐私。故选B。
【26题详解】句意猜测题。根据后文She added that the contact tracing app should be used only for public health purposes and only for the duration of this pandemic.可知她补充说，接触者追踪应用程序只能用于公共卫生目的，而且只能在疫情持续期间使用。由此可知，Jennifer认为苹果和谷歌的合作项目“似乎降低了最严重的隐私风险，但仍有改进的空间，应该更好”。即，划线句子意思为“Jennifer认为这个系统应该更好”。故选D。
【27题详解】推理判断题。根据最后一段It would allow people who are known to have been exposed to the virus to isolate themselves, while letting others recover normal activities.可知它可以让已知接触过病毒的人隔离自己，同时让其他人恢复正常活动。由此可推知，该系统主要用于帮助防止COVID-19的传播。故选C。
C
【答案】28. B 29. A 30. C 31. D
【解析】【分析】这是一篇议论文。本文通过列举美国邮政局连续十年财政赤字的事实，阐述了造成这一问题的原因是技术变革导致的需求降低和管理僵化，呼吁有关部门进行彻底的改革。
【28题详解】细节理解题。根据第一段关键句“Fundamentally, the USPS is in a historic squeeze between technological change that has permanently decreased demand for its bread-and-butter product, first-class mail, and a regulatory structure that denies management in the flexibility to adjust its operations to the new reality.”（从根本上说，美国邮政正处于一个历史性的两难境地：技术变革永久性地降低了对其基本产品和一等邮件的需求，监管结构使管理层无法灵活地根据新的现实情况调整其运营。）可知，美国邮政出现财务问题一方面是由于技术变革导致对其产品需求的减少，一方面是管理层无法灵活地根据新的现实情况调整其运营策略，由此可知，美国邮政的财务问题部分是因为管理僵化导致的。故选B项。
【29题详解】细节理解题。根据第三段关键句“Most of the money would come from a penny-per-letter permanent rate increase and from shifting postal retirees into Medicare. The latter step would largely offset the financial burden of annually pre-funding retiree health care, thus addressing a long-standing complaint by the USPS and its union.”（大部分资金将来自每封信一便士的永久性加息，以及将邮政退休人员转入医疗保险。后一个步骤将在很大程度上抵消每年为退休人员医疗保健预先提供资金的财政负担，从而解决USPS及其工会长期以来的抱怨。）可知，通过将邮政退休人员转入医疗保险，在很大程度上抵消每年为退休人员医疗保健预先提供资金的财政负担，这样就解决USPS及其工会长期以来的抱怨，由此可知，USPS及其工会长期以来的抱怨可以通过减轻退休人员带来的医疗负担来解决。故选A项。
【30题详解】推理判断题。根据最后一段关键句“That common-sense change enjoys wide public support and would save the USPS $2 billion per year. But postal special-interest groups seem to have killed it, at least in the House. The emerging consensus around the bill is a sign that legislators are getting frightened about a politically embarrassing short-term collapse at the USPS.”（这种常识性的改变得到了广泛的公众支持，每年将为美国邮政节省20亿美元。但邮政特殊利益集团似乎已经扼杀了它，至少在众议院是如此。围绕该法案达成的共识表明，立法者们对美国邮政在政治上令人尴尬的短期崩溃感到害怕。）可知，这项改变得到了广泛的公众支持并将为美国邮政节省20亿美元，但却被邮政特殊利益集团扼杀了，因为立法者们对美国邮政在政治上令人尴尬的短期崩溃感到害怕，由此可知推断出，在最后一段中，作者似乎对立法者表示不满，因为他们没有勇气进行改变，对美国邮政在政治上令人尴尬的短期崩溃感到害怕。故选C项。
【31题详解】主旨大意题。通读文章，结合第一段关键句“The U.S. Postal Service (USPS) continues to bleed red ink. It reported a net loss of $5.6 billion for fiscal 2016, the 10th straight year its expenses have exceeded revenue.”（美国邮政局继续赤字。该公司报告2016财年净亏损56亿美元，这是其支出连续第十年超过收入。）可知，本文通过列举美国邮政局连续十年财政赤字的事实，阐述了造成这一问题的原因是技术变革导致的需求降低和管理僵化，呼吁有关部门进行彻底的改革，“The Postal Service Needs More than a Band-Aid.”意为“邮政服务需要的不仅仅是权宜之计。”能够概括文章主要内容。故选D项。
D
【答案】32. B 33. A 34. C 35. D
【解析】【分析】这是一篇说明文。文章主要说明了世界各地的昆虫种群面临灭绝的威胁，增加了一场不那么普遍的灾难的可能性，这将涉及植物、鸟类、鱼类、小型哺乳动物和其他一切依赖昆虫的东西。而造成这场灾难的主要原因是人类未受抑制的贪婪。加速这场灾难的两大贪婪表现形式是全球变暖和工业化农业。
【32题详解】细节理解题。根据第一段中“Like most of the so-called ''comfortable disaster" novels, this could be criticized for optimism.(就像大多数所谓的“舒适的灾难”小说一样，这部小说也可能因乐观而受到批评)”可知，关于The Death of Grass对世界面临的灾难过于乐观，低估了其严重程度，B选项“它低估了世界面临的灾难的严重性”正确。故选B。
【33题详解】推理判断题。根据第一段“ Like most of the so-called ''comfortable disaster" novels, this could be criticized for optimism. Depressing as a future of famine and the war of all against all might seem, the consequences were largely limited to humans.”（就像大多数所谓“舒适的灾难”小说一样，这部小说也可能因乐观而受到批评。尽管未来的饥荒和所有人对所有人的战争似乎令人沮丧，但其后果在很大程度上仅限于人类）及第二段“However, the threatened extinction of insect populations around the world raises the prospect of a much less general disaster, which would involve plants, birds, fish, small mammals, and everything else depending on insects. That's just the start. Other species, and we ourselves, depend on the animals and plants that need insects. When they go, we go. This is not just a greater disaster. It's a much more reasonable one. The most recent study has concluded that insect biomass is decreasing around the world at a rate of 2.5% a year. At that rate, half the insects in the world will be gone in 50 years' time, and all of them in a century — though no one will be keeping track of centuries then.(然而，世界各地昆虫种群的灭绝威胁提出了一个更不普遍的灾难的前景，这将涉及植物、鸟类、鱼类、小型哺乳动物和其他一切依赖昆虫的动物。这只是一个开始。其他物种，还有我们自己，都依赖于需要昆虫的动物和植物。当它们消失了，我们也会消失。这不仅仅是一场更大的灾难，而且更合理。最新的研究得出结论，全世界的昆虫生物量正在以每年2.5%的速度减少。按照这个速度，世界上一半的昆虫将在50年后消失，而所有的昆虫将在一个世纪后消失——尽管那时没有人在记录世纪的历史)”可推知，在第二段中，作者提到最近的研究是为了证明第一段最后所说的“这场灾难不仅限于人类，而是世界性的”，即：关于这场大灾难的预测是有意义的。故选A。
【34题详解】推理判断题。根据最后一段中“The two main expressions of greed that speed this apocalypse are global warming and industrial agriculture. It appears that most of the damage is being done in the developed world by farming practices.(加速这场灾难的两大贪婪表现形式是全球变暖和工业化农业。 看来大部分的破坏是由发达国家的农业生产造成的)”可推知，现代农业是昆虫濒临灭绝的罪魁祸首。故选C。
【35题详解】推理判断题。根据最后一段中“Even in German nature reserves, which are by definition protected from the use of pesticides, there have been sleep falls in insect populations because so many of the most widely used ones are persistent and prevent breeding.(即使是在德国的自然保护区——根据定义，这些保护区是不使用杀虫剂的——也出现了昆虫睡眠数量下降的情况，因为许多最广泛使用的保护区都是持久性的，并阻止了昆虫的繁殖)”可推知，在最后一段之后作者可能会接着举例人类的贪得无厌还可以在哪里被发现。故选D。
第二节（共5小题；每小题2.5分，满分12.5分）
【答案】36. D 37. F 38. G 39. A 40. C
【解析】【分析】这是一篇说明文。主要介绍了微笑给人们带来的好处以及影响。
【36题详解】上文“Scientists and spiritual teachers alike agree that the simple act of smiling can transform you and the world around you. It can make us appear more attractive to others. (科学家和精神导师都同意微笑这个简单的动作可以改变你和你周围的世界。它可以让我们在别人面前显得更有吸引力。)”说明微笑能够给人们带来许多好处，选项D“并且它甚至可以延长我们的生命。”承接上文，继续介绍微笑给人们带来的好处。选项中It代指上文中the simple act of smiling，语义通顺。故选D项。
【37题详解】上文“The feel-good neurotransmitters are all released when a smile flashes across your face as well. (当你脸上闪过微笑时，感觉良好的神经介质也会全部释放出来。)”说明微笑能够释放良好的神经介质，选项F“它们不仅能放松你的身体，还能降低你的心率和血压。”承接上文，具体介绍感觉良好的神经介质的有利作用，选项中They代指前文The feel-good neurotransmitters，语义通顺。故选F项。
【38题详解】上文“A study published in the journal Neuropsychologia reported that seeing an attractive, smiling face activates the region in your brain that processes sensory rewards. (发表在《神经心理学》杂志上的一项研究报告称，看到迷人的微笑面孔会激活大脑中处理感官奖励的区域。)”说明看到微笑的人的大脑某区域会被激活，选项G“这表明，当你看到一个人微笑时，你实际上感到得到了回报。”承接上文，对上文进行解释说明。选项中when you view a person smiling和上文中seeing an attractive, smiling face语义相关。故选G项。
【39题详解】下文“Did you know that your smile is actually contagious (你知道你的微笑是会传染的吗 )”说明本段主题讲的是，微笑是可以传染的，选项A“微笑如何影响你周围的人”和本段主题密切相关，适合做小标题。选项中Affects Those Around You和下文中contagious语义相关。故选A项。
【40题详解】上文“When the picture of someone smiling was presented, the researchers asked the subjects to frown. Instead, they found that the facial expressions went directly to what subjects saw. (当看到某人微笑的照片时，研究人员要求受试者皱眉。相反，他们发现面部表情直接与被试所看到的东西联系在一起。)”以及本段主题说明了微笑具有传染性，当看到某人微笑时，人们的面部表情就和微笑联系在一起，选项C“所以，如果你对某人微笑，他们很可能也会忍不住对你微笑。”承接上文，和上文存在因果关系，语义通顺，逻辑合理。故选C项。
阅读理解（共两节，满分50分）
第一节：（共15个小题；每小题2.5分，满分37.5分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
A
Independence is something that can be difficult to achieve. But don’t worry because here we have four books that can help you. If you don’t buy less than three of them, you’ll be given a 20% discount!
The Total Money Makeover by Dave Ramsey
Taking care of your finance is hard. Dave Ramsey, a famous businessman, is here to take you on the whole process of planning your finance, and show the myths of cash advances and debt consolidation (债务重整), to make sure your finance is healthy.
Price: $14.49
Grace’s Guide by Grace Helbig
Grace Helbig shared her tips to becoming a grown-up. The book is full of personal stories of Helbig, her struggles and the lessons she learnt from failing many times. This book is your on-the-go fun read with pictures and drawings of Helbig, and worksheets (作记录) to practice.
Price: $7.95
The Oh She Glows Cookbook by Angela Liddon
Having suffered from eating disorder and living on diet, Angela Liddon promised to eat healthily forever. She threw out her fat-free butter spray (黄油喷雾) and low-calorie frozen dinners after learning how to properly cook. This book contains more than 100 recipes (食谱) covering breakfast, salads, soups, power snacks and the main dishes for a healthy meal at any time of the day. We all know that healthy eating is all part of being independent.
Price: $22.22
Tiny Beautiful Things by Cheryl Strayed
Life can be hard, especially when it comes to relationships with others. In the book, Strayed gives advice on love and life. She writes about different subjects: a son rejected by his parents, a mother who has lost her child. And the message hidden throughout all her advice is always that, if you want a good life, you have to create it.
Price: $8.76
21. How much will you save at least if you buy three of the listed books
A. $5.68. B. $6.24. C. $8.95. D. $9.10.
22. What is special for the book Grace’s Guide
A. It is about how to grow up healthily.
B. It is mainly about how to work better.
C. It is based on its author’s life experience.
D. It teaches readers to learn from others’ life stories.
23. Which book should you choose for someone who is bad at getting along with others
A. Grace’s Guide.
B. Tiny Beautiful Things.
C. The Total Money Makeover.
D. The Oh she Glows Cookbook.
B
Tech giants Apple and Google are teaming up to create a system that would let smart phone users know when they've come into contact with someone who has COVID-19.
The technology would rely on the Bluetooth signals that smart phones can both send out and receive 1aperscn tests positive(阳性) for COVID-19, they could inform public health authorities through an app. Those public health apps would then warn anyone whose smart phones bad come tear the infected person's phone in the previous 14 days. The technology could be used on both Google Android phones and Apple iPhones.
The companies insist that they will preserve smart phone users' privacy and their technology will be used only by public health authorities to trace the spread of COVID-19. Smart phone users can choose to use it. The software will not collect data on users' physical locations or their personally identifiable information. People who test positive would remain unknown to the public, both to the people who came in contact with them and to Apple and Google. “Privacy is of greatest importance in this effort,” the companies said in a joint statement.
The American Civil Liberties Union has warmed that using cellphone data to handle the pandemic carries risks of “destruction of privacy”. In a statement on Friday, ACLU cyber security counsel Jennifer Granick said, The system also can't work well if people don’t trust it”. She said that the joint Apple and Google project “appears to reduce the worst privacy risks, but there is still room for improvement.” She added that the contact tracing app should be used only for public health purposes and only for the duration of this pandemic.
Public health officials say the contact tracing -finding people who have been in contact with an infected person will be a key step in lifting shelter in-place restrictions
It would allow people who are known to have been exposed to the virus to isolate themselves, while letting others recover normal activities.
24. What is the main purpose of the passage
A. To advertise for public health.
B. To introduce a contact tracing system.
C. To warn the public of risks of COVID-19.
D. To raise people's awareness of privacy protection.
25. What do the companies promise to do in particular
A. Warn people who test positive.
B. Protect infected people's privacy.
C. Work with public health authorities.
D. Collect data on users physical locations.
26. What does the underlined sentence in Paragraph 4 suggest
A. Public health issues are traced accurately.
B. Only people's trust influences the system.
C. The system is at the risk of being destroyed.
D. Jennifer thinks the system should be better.
27. The system is mainly designed to .
A. ensure infected people's recovery
B. guarantee people's normal activities
C. help prevent the spread of COVID-19
D. encourage all the people to isolate themselves
C
The U.S. Postal Service (USPS) continues to bleed red ink. It reported a net loss of $5.6 billion for fiscal 2016, the 10th straight year its expenses have exceeded revenue. Meanwhile, it has more than $120 billion in unfunded liabilities, mostly for employee health and retirement costs. There are many bankruptcies. Fundamentally, the USPS is in a historic squeeze between technological change that has permanently decreased demand for its bread-and-butter product, first-class mail, and a regulatory structure that denies management in the flexibility to adjust its operations to the new reality.
And interest groups ranging from postal unions to greeting-card makers exert self-interested pressure on the USPS’s ultimate overseer-Congress-insisting that whatever else happens to the Postal Service, aspects of the status quo they depend on get protected. This is why repeated attempts at reform legislation have failed in recent years, leaving the Postal Service unable to pay its bills except by deferring vital modernization.
Now comes word that everyone involved—Democrats, Republicans, the Postal Service, the unions and the system’s heaviest users—has finally agreed on a plan to fix the system. Legislation is moving through the House that would save USPS an estimated $28.6 billion over five years, which could help pay for new vehicles, among other survival measures. Most of the money would come from a penny-per-letter permanent rate increase and from shifting postal retirees into Medicare. The latter step would largely offset the financial burden of annually pre-funding retiree health care, thus addressing a long-standing complaint by the USPS and its union.
If it clears the House, this measure would still have to get through the Senate—where someone is bound to point out that it amounts to the bare, bare minimum necessary to keep the Postal Service afloat, not comprehensive reform. There’s no change to collective bargaining at the USPS, a major omission considering that personnel accounts for 80 percent of the agency’s costs. Also missing is any discussion of eliminating Saturday letter delivery. That common-sense change enjoys wide public support and would save the USPS $2 billion per year. But postal special-interest groups seem to have killed it, at least in the House. The emerging consensus around the bill is a sign that legislators are getting frightened about a politically embarrassing short-term collapse at the USPS. It is not, however, a sign that they’re getting serious about transforming the postal system for the 21st century.
28. The financial problem with the USPS is caused partly by __________.
A. its unbalanced budget
B. its rigid management
C. the cost for technical upgrading
D. the withdrawal of bank support
29. The long-standing complaint by the USPS and its unions can be addressed by ________.
A. removing its burden of retiree health care
B. making more investment in new vehicles
C. adopting a new rate-increase mechanism
D. attracting more first-class mail users
30. In the last paragraph, the author seems to view legislators with __________.
A. respect B. tolerance C. discontent D. gratitude
31. Which of the following would be the best title for the text
A. The USPS Starts to Miss Its Good Old Days.
B. The Postal Service: Keep Away from My Cheese.
C. The USPS: Chronic Illness Requires a Quick Cure.
D. The Postal Service Needs More than a Band-Aid.
D
One of the classic science-fiction treatments of the end of civilization was The Death of Grass, by John Christopher, in which a mysterious sickness struck down all the grasses on which most of the world's agriculture is based, from rice to wheat. Tn the end, politics among the survivors of disease, war and famine were reduced to bitter fratricidal struggle over a defensible potato patch. Like most of the so-called ''comfortable disaster" novels, this could be criticized for optimism. Depressing as a future of famine and the war of all against all might seem, the consequences were largely limited to humans.
However, the threatened extinction of insect populations around the world raises the prospect of a much less general disaster, which would involve plants, birds, fish, small mammals, and everything else depending on insects. That's just the start. Other species, and we ourselves, depend on the animals and plants that need insects. When they go, we go. This is not just a greater disaster. It's a much more reasonable one. The most recent study has concluded that insect biomass is decreasing around the world at a rate of 2.5% a year. At that rate, half the insects in the world will be gone in 50 years' time, and all of them in a century — though no one will be keeping track of centuries then.
The chief driver of this disaster is unchecked human greed. I spite our individual and even collective cleverness, we behave as a species with as little foresight as a colony of nematode worms that will consume everything that it can reach until all is gone and it dies off naturally. The challenge of behaving more intelligently than creatures that have no brain at all will not be easy. But unlike the nematodes, we know what to do. The UN convention on biodiversity was signed in 1992, alongside the convention on climate change. Giving it the strength to hold back our appetites is now urgent. Biodiversity is not an optional extra. It is the web that holds all life, including human life.
The two main expressions of greed that speed this apocalypse are global warming and industrial agriculture. It appears that most of the damage is being done in the developed world by farming practices. The use of giant fields, lack of shelter for insects of any sort at all, whether they are harmful to human interests or not, and where the plants are drenched in long-lasting pesticides, is fatal for uncounted billions of insects. The effects of this kind of forming reach beyond the fields immediately affected, too. There has been a huge loss of aquatic insect species from the rivers into which the products of industrial agriculture are flushed by rain. Even in German nature reserves, which are by definition protected from the use of pesticides, there have been sleep falls in insect populations because so many of the most widely used ones are persistent and prevent breeding.
32. Which of the following statements about The Death of Grass is true
A. It holds an optimistic attitude towards famine in the future.
B. It understates the severity of the disaster facing the world.
C. It gives a vivid account of the most serious famine in history.
D. It demonstrates how evil human nature turns out to be.
33. In paragraph 2, the writer mentions the most recent study in order to________.
A. prove that the prediction about the great disaster makes sense
B. show how soon the insects worldwide will go extinct
C. argue for the necessity to protect insect populations
D. suggest a possible approach to increasing insect biomass
34. What can be inferred from the passage
A. Humans are similar to nematode in that both of them lack foresight.
B. We haven't done enough about maintaining biodiversity.
C. Modem farming is to blame for the threatened extinction of insects.
D. Germany sets a good example by minimizing the use of pesticides.
35. What will the author probably discuss after the last paragraph
A. How industrial agriculture brings about apocalypse.
B. What influence pesticides may have on people's lives.
C. Why insect populations in Germany are on the decline.
D. Where unchecked human greed can also by spotted.
第二节（共5小题；每小题2.5分，满分12.5分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Scientists and spiritual teachers alike agree that the simple act of smiling can transform you and the world around you. It can make us appear more attractive to others. ___36___ So before you read on, slap a nice, genuine smile on that face of yours.
How Smiling Affects Your Brain
The act of smiling activates neural messaging that benefits your health and happiness. For starters, smiling activates the release of neuropeptides (神经肽) that work toward fighting off stress. The feel-good neurotransmitters (神经介质) are all released when a smile flashes across your face as well. ___37___
How Smiling Affects Your Body
You’re actually better-looking when you smile. A study published in the journal Neuropsychologia reported that seeing an attractive, smiling face activates the region in your brain that processes sensory rewards. ___38___ It also explains the 2011 findings by researchers at the Face Research Laboratory. They found that both men and women were more attracted to images of people who made eye contact and smiled than those who did not.
___39___
Did you know that your smile is actually contagious (传染性的) In a Swedish study, subjects were shown pictures of several emotions: joy, anger and surprise. When the picture of someone smiling was presented, the researchers asked the subjects to frown. Instead, they found that the facial expressions went directly to what subjects saw.___40___ If they don’t, they’re making a conscious effort not to.
A. How Smiling Affects Those Around You
B. Each time you smile, you throw a little feel-good party in your brain.
C. So if you’re smiling at someone, it’s likely they can’t help but smile back.
D. And it can even lengthen our lives.
E. How Smiling Affects Your Facial Expressions
F. They not only relax your body, but also lower your heart rate and blood pressure.
G. This suggests that when you view a person smiling, you actually feel rewarded.
阅读理解及七选五专项限时训练三参考答案
阅读理解（共两节，满分50分）
第一节：（共15个小题；每小题2.5分，满分37.5分）
A
【答案】21. B 22. C 23. B
【解析】【分析】本文是一篇说明文。主要介绍了四本书，可以在如何独立方面帮助你。
【21题详解】细节理解题。根据第一段的If you don’t buy less than three of them, you’ll be given a 20% discount!如果你买至少3本书以上，就会得到20%的折扣，如果你买了三本书，至少能省（14.49+7.95+8.76）*0.2=6.24，至少能省$6.24。故选B。
【22题详解】细节理解题。根据Grace’s Guide by Grace Helbig部分的The book is full of personal stories of Helbig这本书充满了Helbig的个人故事，由此可知，《格雷斯指南》这本书的特别之处是基于作者的生活经历。故选C。
【23题详解】细节理解题。根据Tiny Beautiful Things by Cheryl Strayed部分的Life can be hard, especially when it comes to relationships with others. 生活可能会很艰难，尤其是当涉及到与他人的关系时。由此可知，对于不善于与人相处的人，你应该选择Tiny Beautiful Things这本书，故选B。
【点睛】同义转写，是高中英语阅读理解的文章和选项的表达手段。如第2小题应抓住题干中的“author’s life experience”和原文中的“personal stories”是异曲同工的效果，故能够迅速确定答案的位置。
B
【答案】24. B 25. B 26. D 27. C
【解析】【分析】这是一篇说明文。科技巨头苹果公司和谷歌公司正在合作开发一个系统，该系统可以让智能手机用户知道他们已经接触了COVID-19患者。文章介绍了这一技术的工作原理，开发这个系统的公司就用户隐私问题做出了一些声明，其他相关组织和个人对此表达了自己的看法。
【24题详解】推理判断题。根据第一段Tech giants Apple and Google are teaming up to create a system that would let smart phone users know when they've come into contact with someone who has COVID-19.可知科技巨头苹果公司和谷歌公司正在合作开发一个系统，该系统可以让智能手机用户知道他们已经接触了COVID-19患者。结合文章介绍了这一技术的工作原理，开发这个系统的公司就用户隐私问题做出了一些声明，其他相关组织和个人对此表达了自己的看法。由此可推知，这篇文章的主要目的是介绍一种COVID-19接触者追踪系统。故选B。
【25题详解】细节理解题。根据第三段The companies insist that they will preserve smart phone users' privacy and their technology will be used only by public health authorities to trace the spread of COVID-19. Smart phone users can choose to use it. The software will not collect data on users' physical locations or their personally identifiable information. People who test positive would remain unknown to the public, both to the people who came in contact with them and to Apple and Google. “Privacy is of greatest importance in this effort,” the companies said in a joint statement.可知这些公司坚称，他们将保护智能手机用户的隐私，而且他们的技术只会被公共卫生部门用于追踪COVID-19的传播。智能手机用户可以选择使用它。该软件不会收集用户的物理位置或个人身份信息。那些被检测为阳性的人将不会被公众所知，无论是接触过他们的人，还是苹果和谷歌公司。两家公司在一份联合声明中表示：“在这项努力中，隐私是最重要的。”由此可知，这些公司承诺保护感染者的隐私。故选B。
【26题详解】句意猜测题。根据后文She added that the contact tracing app should be used only for public health purposes and only for the duration of this pandemic.可知她补充说，接触者追踪应用程序只能用于公共卫生目的，而且只能在疫情持续期间使用。由此可知，Jennifer认为苹果和谷歌的合作项目“似乎降低了最严重的隐私风险，但仍有改进的空间，应该更好”。即，划线句子意思为“Jennifer认为这个系统应该更好”。故选D。
【27题详解】推理判断题。根据最后一段It would allow people who are known to have been exposed to the virus to isolate themselves, while letting others recover normal activities.可知它可以让已知接触过病毒的人隔离自己，同时让其他人恢复正常活动。由此可推知，该系统主要用于帮助防止COVID-19的传播。故选C。
C
【答案】28. B 29. A 30. C 31. D
【解析】【分析】这是一篇议论文。本文通过列举美国邮政局连续十年财政赤字的事实，阐述了造成这一问题的原因是技术变革导致的需求降低和管理僵化，呼吁有关部门进行彻底的改革。
【28题详解】细节理解题。根据第一段关键句“Fundamentally, the USPS is in a historic squeeze between technological change that has permanently decreased demand for its bread-and-butter product, first-class mail, and a regulatory structure that denies management in the flexibility to adjust its operations to the new reality.”（从根本上说，美国邮政正处于一个历史性的两难境地：技术变革永久性地降低了对其基本产品和一等邮件的需求，监管结构使管理层无法灵活地根据新的现实情况调整其运营。）可知，美国邮政出现财务问题一方面是由于技术变革导致对其产品需求的减少，一方面是管理层无法灵活地根据新的现实情况调整其运营策略，由此可知，美国邮政的财务问题部分是因为管理僵化导致的。故选B项。
【29题详解】细节理解题。根据第三段关键句“Most of the money would come from a penny-per-letter permanent rate increase and from shifting postal retirees into Medicare. The latter step would largely offset the financial burden of annually pre-funding retiree health care, thus addressing a long-standing complaint by the USPS and its union.”（大部分资金将来自每封信一便士的永久性加息，以及将邮政退休人员转入医疗保险。后一个步骤将在很大程度上抵消每年为退休人员医疗保健预先提供资金的财政负担，从而解决USPS及其工会长期以来的抱怨。）可知，通过将邮政退休人员转入医疗保险，在很大程度上抵消每年为退休人员医疗保健预先提供资金的财政负担，这样就解决USPS及其工会长期以来的抱怨，由此可知，USPS及其工会长期以来的抱怨可以通过减轻退休人员带来的医疗负担来解决。故选A项。
【30题详解】推理判断题。根据最后一段关键句“That common-sense change enjoys wide public support and would save the USPS $2 billion per year. But postal special-interest groups seem to have killed it, at least in the House. The emerging consensus around the bill is a sign that legislators are getting frightened about a politically embarrassing short-term collapse at the USPS.”（这种常识性的改变得到了广泛的公众支持，每年将为美国邮政节省20亿美元。但邮政特殊利益集团似乎已经扼杀了它，至少在众议院是如此。围绕该法案达成的共识表明，立法者们对美国邮政在政治上令人尴尬的短期崩溃感到害怕。）可知，这项改变得到了广泛的公众支持并将为美国邮政节省20亿美元，但却被邮政特殊利益集团扼杀了，因为立法者们对美国邮政在政治上令人尴尬的短期崩溃感到害怕，由此可知推断出，在最后一段中，作者似乎对立法者表示不满，因为他们没有勇气进行改变，对美国邮政在政治上令人尴尬的短期崩溃感到害怕。故选C项。
【31题详解】主旨大意题。通读文章，结合第一段关键句“The U.S. Postal Service (USPS) continues to bleed red ink. It reported a net loss of $5.6 billion for fiscal 2016, the 10th straight year its expenses have exceeded revenue.”（美国邮政局继续赤字。该公司报告2016财年净亏损56亿美元，这是其支出连续第十年超过收入。）可知，本文通过列举美国邮政局连续十年财政赤字的事实，阐述了造成这一问题的原因是技术变革导致的需求降低和管理僵化，呼吁有关部门进行彻底的改革，“The Postal Service Needs More than a Band-Aid.”意为“邮政服务需要的不仅仅是权宜之计。”能够概括文章主要内容。故选D项。
D
【答案】32. B 33. A 34. C 35. D
【解析】【分析】这是一篇说明文。文章主要说明了世界各地的昆虫种群面临灭绝的威胁，增加了一场不那么普遍的灾难的可能性，这将涉及植物、鸟类、鱼类、小型哺乳动物和其他一切依赖昆虫的东西。而造成这场灾难的主要原因是人类未受抑制的贪婪。加速这场灾难的两大贪婪表现形式是全球变暖和工业化农业。
【32题详解】细节理解题。根据第一段中“Like most of the so-called ''comfortable disaster" novels, this could be criticized for optimism.(就像大多数所谓的“舒适的灾难”小说一样，这部小说也可能因乐观而受到批评)”可知，关于The Death of Grass对世界面临的灾难过于乐观，低估了其严重程度，B选项“它低估了世界面临的灾难的严重性”正确。故选B。
【33题详解】推理判断题。根据第一段“ Like most of the so-called ''comfortable disaster" novels, this could be criticized for optimism. Depressing as a future of famine and the war of all against all might seem, the consequences were largely limited to humans.”（就像大多数所谓“舒适的灾难”小说一样，这部小说也可能因乐观而受到批评。尽管未来的饥荒和所有人对所有人的战争似乎令人沮丧，但其后果在很大程度上仅限于人类）及第二段“However, the threatened extinction of insect populations around the world raises the prospect of a much less general disaster, which would involve plants, birds, fish, small mammals, and everything else depending on insects. That's just the start. Other species, and we ourselves, depend on the animals and plants that need insects. When they go, we go. This is not just a greater disaster. It's a much more reasonable one. The most recent study has concluded that insect biomass is decreasing around the world at a rate of 2.5% a year. At that rate, half the insects in the world will be gone in 50 years' time, and all of them in a century — though no one will be keeping track of centuries then.(然而，世界各地昆虫种群的灭绝威胁提出了一个更不普遍的灾难的前景，这将涉及植物、鸟类、鱼类、小型哺乳动物和其他一切依赖昆虫的动物。这只是一个开始。其他物种，还有我们自己，都依赖于需要昆虫的动物和植物。当它们消失了，我们也会消失。这不仅仅是一场更大的灾难，而且更合理。最新的研究得出结论，全世界的昆虫生物量正在以每年2.5%的速度减少。按照这个速度，世界上一半的昆虫将在50年后消失，而所有的昆虫将在一个世纪后消失——尽管那时没有人在记录世纪的历史)”可推知，在第二段中，作者提到最近的研究是为了证明第一段最后所说的“这场灾难不仅限于人类，而是世界性的”，即：关于这场大灾难的预测是有意义的。故选A。
【34题详解】推理判断题。根据最后一段中“The two main expressions of greed that speed this apocalypse are global warming and industrial agriculture. It appears that most of the damage is being done in the developed world by farming practices.(加速这场灾难的两大贪婪表现形式是全球变暖和工业化农业。 看来大部分的破坏是由发达国家的农业生产造成的)”可推知，现代农业是昆虫濒临灭绝的罪魁祸首。故选C。
【35题详解】推理判断题。根据最后一段中“Even in German nature reserves, which are by definition protected from the use of pesticides, there have been sleep falls in insect populations because so many of the most widely used ones are persistent and prevent breeding.(即使是在德国的自然保护区——根据定义，这些保护区是不使用杀虫剂的——也出现了昆虫睡眠数量下降的情况，因为许多最广泛使用的保护区都是持久性的，并阻止了昆虫的繁殖)”可推知，在最后一段之后作者可能会接着举例人类的贪得无厌还可以在哪里被发现。故选D。
第二节（共5小题；每小题2.5分，满分12.5分）
【答案】36. D 37. F 38. G 39. A 40. C
【解析】【分析】这是一篇说明文。主要介绍了微笑给人们带来的好处以及影响。
【36题详解】上文“Scientists and spiritual teachers alike agree that the simple act of smiling can transform you and the world around you. It can make us appear more attractive to others. (科学家和精神导师都同意微笑这个简单的动作可以改变你和你周围的世界。它可以让我们在别人面前显得更有吸引力。)”说明微笑能够给人们带来许多好处，选项D“并且它甚至可以延长我们的生命。”承接上文，继续介绍微笑给人们带来的好处。选项中It代指上文中the simple act of smiling，语义通顺。故选D项。
【37题详解】上文“The feel-good neurotransmitters are all released when a smile flashes across your face as well. (当你脸上闪过微笑时，感觉良好的神经介质也会全部释放出来。)”说明微笑能够释放良好的神经介质，选项F“它们不仅能放松你的身体，还能降低你的心率和血压。”承接上文，具体介绍感觉良好的神经介质的有利作用，选项中They代指前文The feel-good neurotransmitters，语义通顺。故选F项。
【38题详解】上文“A study published in the journal Neuropsychologia reported that seeing an attractive, smiling face activates the region in your brain that processes sensory rewards. (发表在《神经心理学》杂志上的一项研究报告称，看到迷人的微笑面孔会激活大脑中处理感官奖励的区域。)”说明看到微笑的人的大脑某区域会被激活，选项G“这表明，当你看到一个人微笑时，你实际上感到得到了回报。”承接上文，对上文进行解释说明。选项中when you view a person smiling和上文中seeing an attractive, smiling face语义相关。故选G项。
【39题详解】下文“Did you know that your smile is actually contagious (你知道你的微笑是会传染的吗 )”说明本段主题讲的是，微笑是可以传染的，选项A“微笑如何影响你周围的人”和本段主题密切相关，适合做小标题。选项中Affects Those Around You和下文中contagious语义相关。故选A项。
【40题详解】上文“When the picture of someone smiling was presented, the researchers asked the subjects to frown. Instead, they found that the facial expressions went directly to what subjects saw. (当看到某人微笑的照片时，研究人员要求受试者皱眉。相反，他们发现面部表情直接与被试所看到的东西联系在一起。)”以及本段主题说明了微笑具有传染性，当看到某人微笑时，人们的面部表情就和微笑联系在一起，选项C“所以，如果你对某人微笑，他们很可能也会忍不住对你微笑。”承接上文，和上文存在因果关系，语义通顺，逻辑合理。故选C项。