2017年12月大学英语四级真题及答案第三套

2017年12月大学英语四级真题及答案(第三套)

Part I Writing (25 minutes)

Directions: For this part, you are allowed 30 minutes to write a short essay onhow to best handle the relationshop between teachers and students.

You should write at least 120 words but no more than 180 words.

Part II Listening Comprehension (25 minutes)

Section A

Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.

Questions 1 and 2 are based on the news report you have just heard.

1. A) Her friend Erika. C) Her grandfather.

B) Her little brother. D) Her grandmother.

2. A) By taking pictures for passers-by. C) By selling lemonade and pictures.

B) By working part time at a hospital. D) By asking for help on social media.

Questions 3 and 4 are based on the news report you have just heard.

3. A) Finding cheaper ways of highway construction.

B) Generating electric power for passing vehicles.

C) Providing clean energy to five million people.

D) Testing the efficiency of the new solar panel.

4. A) They can stand the wear and tear of natural elements.

B) They can be laid right on top of existing highways.

C) They are only about half an inch thick.

D) They are made from cheap materials.

Questions 5 to 7 are based on the news report you have just heard.

5. A) Endless fighting in the region. C) Inadequate funding for research.

B) The hazards from the desert. D) The lack of clues about the species.

6. A) To observe the wildlife in the two national parks.

B) To identify the reasons for the lions’ disappearance.

C) To study the habitat of lions in Sudan and Ethiopia.

D) To find evidence of the existence of the “lost lions”.

7. A) Lions walking. C) Some camping facilities.

B) Lio ns’ tracks. D) Traps set by local hunters

Section B

Directions:In this section, you will hear two long conversations.

At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear

a question, you must choose the best answer from the four choices marked A), B), C), and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.

Questions 8 to 11 are based on the conversation you have just heard.

8. A) Her ‘lucky birthday’. C) Her wedding anniversary.

B) A call from her dad. D) A special gift from the man.

9. A) Gave her a big model plane. C) Took her on a trip overseas.

B) Bought her a good necklace. D) Threw her a surprise party.

10. A) The gift her husband has bought.

B) The trip her husband has planned.

C) What has been troubling her husband.

D) What her husband and the man are up to.

11. A) He will be glad to be a guide for the couple’s holiday trip.

B) He will tell the women the secret if her husband agrees.

C) He is eager to learn how the couple’s holiday turns out.

D) He wants to find out about the couple’s holiday plan.

Questions 12 to 15 are based on the conversation you have just heard.

12. A) They are sensitive to the dynamics of a negotiation.

B) They see the importance of making compromises.

C) They know when to adopt a tough attitude.

D) They take the rival’s attitude into account.

13. A) They know how to adapt. C) They know when to make compromises.

B) They know when to stop. D) They know how to control their emotion.

14. A) They are patient. C) They learn quickly.

B) They are good at expression. D) They uphold their principles.

15. A) Make clear one's intentions. C) Formulate one's strategy.

B) Clarify items of negotiation. D) Get to know the other side.

Section C

Directions: In this section, you will hear three passages. At the end of each passage, you will

hear three or four questions. Both the passage and the questions will be spoken only

once. After you hear a question, you must choose the best answer from the four

choices marked A), B), C), D). Then mark the corresponding letter on Answer

Sheet 1 with a single line through the centre.

Questions 16 to 18 are based on the passage you have just heard.

16. A) When America's earliest space program started.

B) When the International Space Station was built.

C) How many space shuttle missions there will be.

D) How space research benefits people on Earth.

17. A) They accurately calculated the speed of the orbiting shuttles.

B) They developed objects for astronauts to use in outer space.

C) They tried to meet astronauts' specific requirements.

D) They tried to make best use of the latest technology.

18. A) They are extremely accurate. C) They were first made in space.

B) They are expensive to make. D) They were invented in the 1970s.

Questions 19 to 21 are based on the passage you have just heard.

19. A) It was when her ancestors came to America.

B) People had plenty of land to cultivate then.

C) It marked the beginning of something new.

D) Everything was natural and genuine then.

20. A) They believed in working for goals. C) They had all kinds of entertainment.

B) They enjoyed living a living a life of ease. D) They were known to be creative.

21. A) Chatting with her ancestors. C) Polishing all the silver work.

B) Furnishing her country house. D) Doing needlework by the fire.

Questions 22 to 25 are based on the passage you have just heard.

22. A) Use a map to identify your location. C) Sit down and try to calm yourself.

B) Call your family or friends for help. D) Try to follow your footprints back.

23. A) You may find a way out without your knowing it.

B) You may expose yourself to unexpected dangers.

C) You may get drowned in a sudden flood.

D) You may end up entering a wonderland.

24. A) Look for food. C) Start a fire.

B) Wait patiently. D) Walk uphill.

25. A) Inform somebody of your plan. C) Check the local weather.

B) Prepare enough food and drink. D) Find a map and a compass.

Part Ⅲ Reading Comprehension ( 40 minutes )

Section C

Directions:There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2with a single line through the centre.

Passage One

Questions 46 and 50 are based on the following passage.

Aging happens to all of us, and is generally thought of as a

natural part of life. It would seem silly to call such a thing a “disease.”

On the other hand, scientists are increasingly learning that aging and biological age are two different things, and that the former is a key risk factor for conditions such as heart disease, cancer and many more. In that light, aging itself might be seen as something treatable, the way you would treat high blood pressure or a vitamin deficiency.

Biophysicist Alex Zhavoronkov believes that aging should be considered a disease. He said that describing aging as a disease creates incentives to develop treatments.

“It unties the hands of the pharmaceutical(制药的)industry so that they can begin treating the disease and not just t he side effects,”he said.

“Right now, people think of aging as natural and something you can’t control,”he said. “IN academic circles, people take aging research as just an interest area where they can try to develop interventions. The medical community also takes aging for granted, and can do nothing about it except keep people within a certain health range.”

But if aging were recognized as a disease, he said,“It would attract funding and change the way we do health care. What matters is understand tha t aging is curable.”

“It was always known that the body accumulates damage,”he added. “The only way to cure aging is to find ways to repair that damage. I think of it as preventive medicine for age-related conditions.”

Leonard Hayflick, a professor at the University of California, San Francisco, said the idea that aging can be cured implies the human lifespancan be increased, which some researchers suggest is possible. Hayflick is not among them.

“There’re many people who recover from cancer, stroke, or heart disease. But they continue to age, because aging is separate from their disease,”Hayflick said.

继续阅读

2017年12月英语四级真题及答案(卷三)

2017年12月英语四级真题 Part I Writing(25 minutes) Directions:For this part,you are allowed 30 minutes to write a short essay on how to best handle the relationship between parents and children.You should write at least 120 words but no more than 180 words. Part II Listening Comprehension(25 minutes) Section A Directions:In this section,you will hear three news reports.At the end of each news report,you will hear two or three questions.Both the news report and the questions will be spoken only once.After you hear a question,you must choose the best answer from the four choices marked A),B),C)and D).Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. Questions 1 and 2 are based on the news report you have just heard. 1.A)Her friend Erika.C)Her grandfather. B)Her little brother.D)Her grandmother. 2.A)By taking pictures for passers-by.C)By selling lemonade and pictures. B)By working part time at a hospital.D)By asking for help on social media. Questions 3 and 4 are based on the news report you have just heard. 3.A)Finding cheaper ways of highway construction. B)Generating electric power for passing vehicles. C)Providing clean energy to five million people. D)Testing the efficiency of the new solar panel. 4.A)They can stand the wear and tear of natural elements. B)They can be laid right on top of existing highways. C)They are only about half an inch thick.

2017年12月四级真题答案及解析(第一套完整版)

Part I Writing Directions:For this part, you are allowed 30 minutes to write a short easy on how to best handle the relationship between doctors and patients. You should write at least 120 words but no more than 180 words. 题目解析： 一、审题：四级写作的第一步即读懂题目要求。读题目时我们需要在题干中去找“关键词”。 本次作文中读完题目，建议同学们用笔勾画出来五个关键词，即五个要点，顺序依次是“30 minutes”、“essay”、“how”、“the relationship between doctors and patients”、“write at least 120 words but no more than 180 words”其中关于考试时间和作文字数的要求每年都一致。接下来审题的重点：这次写作要求我们写一篇常见的议论文，并且去简述如何处理医生和病人的关系。读完题目之后，我们了解到这次的写作主题即“医患关系（the relationship between doctors and patients）”。 二、谋篇：四级写作的第二步即布局三段结构，这次写作中强调“如何处理医患关系”，所 以我们在第二段写作时，可以从两个维度出发—医生和患者—去叙述如何正确处理两个主体之间的关系。 三、框架：全文分为三个段落。第一段为话题引出段（可结合情景作文第一段，先表明自 己的观点）；第二段为原因分析段（主要从医生/患者两个方面进行原因论述）；第三段为意义阐述段。 四、填充：具体的范文如下，仅做参考。 写作范文： On the Relationship between Doctors and Patients In the present age, it is generally acknowledged that the relationship between doctors and patients is playing indispensable roles in our lives. As far as I am concerned, we should balance this kind of relationship from two aspects, doctors and patients. The causes of this perspective are multiple. In the first place, the reason has been cited as a major reason that doctors cannot be understood, for patients always maintain doctors can cure all kinds of disease. This is mainly due to the fact that although medical technology and science are advanced at an amazing rate, there exists a multitude of various kinds of diseases we cannot cure. Furthermore, the reason can contribute this perspective that patients are believed to be lack of the fundamental medical knowledge, which results in this relationship are worried. Plenty of evidence has shown that an increasing number of patients often go to extremes if their diseases cannot be cure instantly. When it comes to our modern society, it is universally acknowledged that dealing with the relationship between doctors and patients in a reasonable way plays a vitally important role in our lives. Undoubtedly, if we spare no efforts to do so, our future will be hopeful and promising.

2019年12月大学英语四级考试真题完整版(第一套)

Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to learn Chinese. Please recommend a university to him. You should write at least 120 words but no more than 180 words. Part II Listening Comprehension (25 minutes) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A) , B) , C) and D) . Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. Questions I and 2 are based on the news report you have just heard. 1.A)Many facilities were destroyed by a wandering cow. B) A wandering cow knocked down one of its fences. C)Some tourists were injured by a wandering cow. D) A wandering cow was captured by the police. 2.A) It was shot to death by a police officer. B)It found its way back to the park' s zoo. C)It became a great attraction for tourists. D)It was sent to the animal control department. Questions 3 and 4 are based on the news report you have just heard. 3.A) It is the largest of its kind. B)It is going to be expanded. C)It is displaying more fossil specimens. D)It is staring an online exhibition. 4.AJA collection of bird fossils from Australia. B)Photographs of certain rare fossil exhibits. C)Some ancient wall paintings from Australia. D)Pictures by winners of a wildlife photo contest. Questions 5 to 7 are based on the news report you have just heard. 5.A) Pick up trash. B)Amuse visitors. C)Deliver messages. D)Play with children. 6.A) They are especially intelligent. 8)They are children' s favorite. C They are quite easy to tame. D) They are clean and pretty. 7.A) Children may be harmed by the rooks. B)Children may be tempted to drop litter. C)Children may contract bird diseases.

2017年12月英语四级真题试卷及详细答案(第一套)详细版

2017年12月大学英语四级真题试卷及详细答案一(完整版) 目录 2017年12月大学英语四级真题详细答案(完整版) (1) 2017年12月大学英语四级真题试题一(完整版) (42) 快速对答案 (56) 2017年12月大学英语四级真题详细答案(完整版) Part I Writing (25 minutes) (请于正式开考后半小时内完成该部分，之后将进行听力考试) Directions:For this part, you are allowed 30 minutes to write an a short easy on how to best handle the relationship between doctors and patients. You should write at least120 words but no more than180 words. Part II Listening Comprehension (30 minutes) Section A Directions:In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and questions will be spoken only once. After you hear questions, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. 注意：此部分试题请在答题卡1上作答。 【听力原文】 News Report One 【1】A 9-year-old girl in New Mexico has raised more than $500 for her little brother who needs heart surgery in Houston, Texas this July. Addison Witulski’s grandmother Kim Allred said Addison probably overheard a conversation between

2017年12月四级真题答案与详解(第一套)

(-) -----2017^12^*￥S?Egai^i4SiB￥Si^#)8 — (S B1*) -.U l Part I Writing w,^f f i*^?i'j“how”±f f i0i n#*M a n-K s y6W“=^”3f s^^#,s^n r i￥^o k , x w u m-w a m w,-m h^m wrn,w msj&o l jm nrnm _,;i i|i i-p s w i}|-|'iw* J1-5^S^ T-^^^WiSS7XtfcLii|j j||(etemal find universal) 1112. X^$S A W W,]￡^^&zP i￡ii^'fi$8j(depend more on what children do) .1. MM&infc A,o u t-d a t e d)invisible generation gap) _j2' down our Pace)> ' |awkward silence between parents and us) 13. ^g A l?l^^i3^'9:XSt(talk more with parents) H>J rE f3M&,:R^f(frequ en t c o m m u n i c a t i o n)6^^ % Communication Is the Best Gift for Parents C l) The relationship between parents and children is an eternal and universal topic for m ankind. Our relationship with parents might be different at different ages. ? And for young people at their 20s, I think it will depend more on what children do. ?The reason why I say so is that as we grow up, our parents who were our idols before gradually get old and even out-dated. @However hard efforts they make, they could not catch up with our steps, leading to the so-called invisible generation gap. ? Thus, if we cannot slow down our pace,there will definitely be an awkward ?As a result ft W g i b:￥ silence between parents and us,which is not rare now. ?As a result, young people should talk more with P i eternal TjcfSfft parents to share our feelings and to understand each universal other better. Everyone wants loving parents who are open and supportive. ?Only through frequent communication with them,can we establish such a harmonious idol M invisible J U M&J awkward supportive relationship.establish jjiY/l #r* n o *t—■+/L￡&}%-&, ^.i A^ J j 5c#^ ￡ & A￡ j f*.& f-?-f & ￡?L

2017年12月四级真题(第一套)

2017年12月大学英语四级考试真题（第一套） Part ⅠWriting (30 minutes) Directions: For this part, you are allowed 30 minutes to write a short essay on how to best handle the relationship between doctors and patients. You should write at least 120 words but no more than 180 words. Part ⅡListening Comprehension (25 minutes) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D) .Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. Questions 1 and 2 are based on the news report you have just heard. 1.A）Her friend Erika. B）Her little brother. C）Her grandfather. D）Her grandmother. 2.A）By taking pictures for passers-by. B）By working part time at a hospital. C）By selling lemonade and pictures. D）By asking for help on social media. Questions 3 and 4 are based on the news report you have just heard. 3.A）Finding cheaper ways of highway construction. B）Generating electric power for passing vehicles. C）Providing clean energy to five million people. D）Testing the efficiency of the new solar panel. 4.A）They can stand the wear and tear of natural elements. B）They can be laid right on top of existing highways. C）They can only about half an inch thick. D）They are made from cheap materials. Questions 5 and 7 are based on the news report you have just heard. 5.A）Endless fighting in the region. B）The hazards from the desert. C）Inadequate funding for research. D）The lack of clues about the species.

2017年12月大学英语四级真题试卷及答案(三套全)

2017年12月大学英语四级真题试卷及答案(三套全)

目 录 2017 年12 月大学英语四级真题试题一(完整版) (1) 答案 (15) 2017 年12 月大学英语四级真题试题二(完整版) (15) 答案 (24) 2017 年12 月大学英语四级真题试题三(完整版) (24) 答案 (34) 2017 年12 月大学英语四级真题试题一(完整版) Part I Writing (25 minutes) (请于正式开考后半小时内完成该部分，之后将进行听力考试) Directions:For this part, you are allowed 30 minutes to write an a short easy onhow to besthandle the relationship between doctors and patients. You should write at least 120words but no more than 180 words. Part II Listening Comprehension (30 minutes) Section A Directions:In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and questions will be spoken only once. After you hear questions, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter onAnswer Sheet 1 with a single line through the centre.

201712月大学英语四级真题与答案解析第二套

2016年12月大学英语四级考试真题(第2套) Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write an essay. Suppose you have twooptions upon graduation: one is to take a job in a company and the other to go to agraduate school. You are to make a choice between the two. Write an essay to explain thereasons for your choice. You should write at least 120 words but no more than 180words. Part Ⅲ Reading Comprehension (40 minutes) Section A Directions: In this section, there is a passage with ten blanks. You are required to select one wordfor each blank from a list of choices given in a word bank following the passage. Read thepassage through carefully before making your choices.Each choice in the bank isidentified by a letter. Please mark the corresponding letter for each item on AnswerSheet 2with a single line through the centre. You may not use any of the words in thebank more than once. Questions 26 to 35 are based on the following passage. The ocean is heating up. That's the conclusion of a new study that finds that Earth's oceans now26heat at twice the rate they did 18 years ago. Around half of ocean heat intake since 1865 hastaken place since 1997, researchers report online in Nature Climate Change. Warming waters are known to27 to coral bleaching (珊瑚白化) and they take up more spacethan cooler waters, raising sea28While the top of the ocean is well studied, its depths are moredifficult to 29The researchers gathered 150 years of ocean temperature data in order to get abetter30 of heat absorption from surface to seabed. They gathered together temperature readingscollected by everything from a 19th century31 of British naval ships to modem automated oceanprobes. The extensive data sources,32 with computer simulations ( 计算机模拟), created atimeline of ocean temperature changes, including cooling from volcanic outbreaks and warming fromfossil fuel33 About 35 percent of the heat taken in by the oceans during the industrial era now resides at a34 of more than 700 meters, the researchers found. They say they're35whether the deep-seawarming canceled out warming at the sea's surface. A. absorb B. Combined C. Contribute D. depth E. emissions

2017年12月英语四级真题和答案解析(第二套)

20XX年12月大学英语四级考试真题(第2套) Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write a short essay on how to best handle the relationship between teachers and students. You should write at least 120 words but no more than 180 words. Part II Listening Comprehension (25 minutes) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1with a single line through the centre. Questions 1 and 2 are based on the news report you have just heard. 1. A) It tries to entertain its audience. C) It wants to catch people’s attention. B) It tries to look into the distance. D) It has got one of its limbs injured. 2. A) It was spotted by animal protection officials. B) It was filmed by a local television reporter. C) Its videos were posted on social media. D) Its picture won a photography prize. Questions 3 and 4 are based on the news report you have just heard. 3. A) The distance travelled C) The spending on gas. B) The incidence of road accidents. D) The number of people travelling. 4. A) Fewer people are commuting. C) Job growth is slowing down. B) Gas consumption is soaring. D) Rush-hour traffic is worsening. Questions 5 to 7 are based on the news report you have just heard. 5. A) He told a stranger the sad story about himself.

2017年12月英语四级真题答案及解析(卷二)

2017 年12 月大学英语四级考试真题答案与详解（第2 套）Part I Writing 审题思路： 此次话题师生关系贴近学生生活，因此写起来并不难。简单开篇之后，考生应该将重点放在第二段，给出处理 好师生关系的一些建议。当然，这个话题还可以从不同的角度入手，比如老师应该如何做，或者师生共同努力，等 等。考生应结合自己的实际情况，从自己最擅长的角度写，这样容易做到言之有物。本文仅从学生角度给出了三条 处理好师生关系的建议。 高分范文： Teacher-student Relationship Is Never Complex The relationship between teachers and students has been hotly discussed in recent years in China for more and more attention has been paid to education. Today I would like to share some tips on how to get along well with teachers from students’ perspective. First and foremost, leave a good first impression on your teacher. As the saying goes, well begun is half done. A good first impression is important for teachers to remember your name among your fellow students. Secondly, study hard and be active in class. A student who loves study can definitely impress teachers deeply. Finally, keep contact with your teacher

2017年12月英语四级考试真题全解析(第一套)

2017年12月英语四级考试真题全解析（第一套） 第一部分：写作 题目解析： 审题： 四级写作的第一步即读懂题目要求。读题目时我们需要在题干中去找“关键词”。本次作文中读完题目，建议同学们用笔勾画出来五个关键词，即五个要点，顺序依次是“30 minutes”、“essay”、“how”、“the relationship between doctors andpatients”、“write at least 120 words but no more than180 words”其中关于考试时间和作文字数的要求每年都一致。接下来审题的重点：这次写作要求我们写一篇常见的议论文，并且去简述如何处理医生和病人的关系。读完题目之后，我们了解到这次的写作主题即“医患关系（the relationship between doctors andpatients）”。 谋篇： 四级写作的第二步即布局三段结构，这次写作中强调“如何处理医患关系”，所以我们在第二段写作时，可以从两个维度出发—医生和患者—去叙述如何正确处理两个主体之间的关系。 框架：全文分为三个段落。第一段为话题引出段（可结合情景作文第一段，先表明自己的观点）；第二段为原因分析段（主要从医生/患者两个方面进行原因论述）；第三段为意义阐述段。 具体的范文如下，仅做参考： In the present age,it is generally acknowledged that the relationship between doctors and patients is playing indispensable roles inour lives.As far as I am concerned,we should balance this kind of relationship from two aspects,doctorsand patients. The causes of this perspective are multiple.In the first place,the reason hasbeen cited as a major reason that doctorscannot be understood,for patients always maintain doctors can cure all kindsof disease.This is mainly due to the fact that although medical technology and science are advanced at an amazingrate,there exists a multitude of various kinds of diseases we cannot cure.Furthermore,the reason can contribute this perspective that patients are believed to be lack of thefundamental medical knowledge,which results in this relationship are worried.Plenty of evidence has shown that anincreasing number of patients often go to extremes if their diseases cannot be cureinstantly. When it comes to ourmodern society,it is universally acknowledged that dealing with the relationship between doctors and patients in areasonable way plays a vitally important role in our lives.Undoubtedly,ifwe spare no efforts to do so,our future will be hopeful and promising.

2017年12月大学英语四级考试真题与答案(三套全)

2017年12月大学英语四级考试真题及答案（第一套）Part I Writing （25 minutes） Directions: For this part, you are allowed 30 minutes to write a short easy on how to best handle the relationship between doctors and patients. You should write at least 120 words but no more than 180 words. Part II Listening Comprehension （25 minutes） Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. Questions 1 and 2 are based on the news report you have just heard. 1. A) Her friend Erika. C) Her grandfather. B) Her little brother. D) Her grandmother. 2. A) By taking pictures for passers-by. C) By selling lemonade and pictures. B) By working part time at a hospital. D) By asking for help on social media. Questions 3 and 4 are based on the news report you have just heard. 3. A) Finding cheaper ways of highway construction. B) Generating electric power for passing vehicles. C) Providing clean energy to five million people. D) Testing the efficiency of the new solar panel. 4. A) They can stand the wear and tear of natural elements. B) They can be laid right on top of existing highways. C) They are only about half an inch thick. D) They are made from cheap materials.