20207月大学英语四级第二套真题和答案解析

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1、2016年12月大学英语四级试题（第二套）Part I Writing （30minutes）（请于正式开考后半小时完成该部分，之后将进行听力考试）Directions：For this part, you are allowed 30 minutes to write an essay. Suppose you have two options upon graduation: one is to take a job in a company and the other to go to a graduate school. You are to make a choice between

2、 the two. Write an essay to explain the reasons for your choice. You should write at least 120 words but no more than 180 words.Part II Listening Comprehension （25 minutes）Section ADirections： In this section， you will hear three news reports. At the end of each news report， you will hear two or thr

3、ee 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）. Then mark the corresponding letter on the Answer sheet1with a single line through the centre.Questions 1 and 2 are based

4、on the news report you have just heard.1.A) To satisfy the curiosity of tourists.C) To enable tourists to visit GoatIsland. B) To replace two old stone bridges.D) To improve utility services in the state2.A) Countless tree limbs.C) Lots of wrecked boats and ships. B) A few skeletons.D) Millions of c

5、oins on the bottom. Questions 3 and 4 are based on the news report you have just heard3.A)It suspended diplomatic relations with Libya. B)It urged tourists to leave Tunisia immediately.C)It shut down two border crossings with Libya.D)It launched a fierce attack against Islamic State. 4.A) Advise Tun

6、isian civilians on how to take safety precautions.B)Track down the organization responsible for the terrorist attack.C)Train qualified security personnel for the Tunisian government.D)Devise a monitoring system on the Tunisian border with Libya. Questions 5 to 7 are based on the news report you have

7、 just heard.5.A) An environment-friendly battery.C) A plant-powered mobile phone charger. B) An energy-saving mobile phone.D) A device to help plants absorb sunlight. 6.A) While sitting in their schools courtyard.C) While solving a mathematical problem. B) While playing games on their phones.D) Whil

8、e doing a chemical experiment. 7. A)It increases the applications of mobile phonesB)It speeds up the process of photosynthesis.C)It improves the reception of mobile phones.D)It collects the energy released by plants. Section B Directions: In this section，you will hear two long conversations. At the

9、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 four choice marked A），B），C） and D）.Then mark the corresponding letter an Answer sheet1 with a single line though th

10、e centre.Question8 to 11 are based on the conversation you have just heard.8.A) He visited the workshops in the Grimsby plant.B) He called the woman and left her a message.C)He used stand-ins as replacements on all lines.D)He asked a technician to fix the broken production line. 9.A)Itis the most mo

11、dern production line.C)It has stopped working completely B)It assembles super-intelligent robots.D)It is going to be upgraded soon. 10.A) To seek her permission.C) To request her to return at once.B) To place an order for robots.D) To ask for Toms phone number. 11.A) She is on duty.C) She is on sick

12、 leave. B) She is having her day off.D) She is abroad on business. Question12 to 15 are based on the conversation you have just heard.12.A) He saved a baby boys life.C) He prevented a train crash. B) He wanted to be a superhero.D) He was a witness to an accident 13.A) He has a 9-month-old boy.C) He

13、enjoys the interview. B) He is currently unemployed.D) He commutes by subway. 14.A) A rock on the tracks. C) A strong wind. B) A misplaced pushchair.D) A speeding car. 15.A) She stood motionless in shock.C) She called the police at once.B) She cried bitterly.D) She shouted for help. Section CDirecti

14、ons：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） and D）.Then mark the corres

15、ponding 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) She inherited her family ice-cream business in Billings.B)She loved the ice-cream business more than teaching primary school.C)She started an ice-cream busines

16、s to finance her daughters education. D)She wanted to have an ice-cream truck when she was a little girl. 17.A)To preserve a tradition.C)To help local education. B)To amuse her daughter.D)To make some extra money. 18.A)To raise money for business expansion.C)To allow poor kids to have ice-cream too.

17、B)To make her truck attractive to children.D)To teach kids the value of mutual support Questions 19 to 21 are based on the passage you have just heard.19.A)The reasons for imposing taxes.C)The various burdens on ordinary citizens.B)The various serious money can buy.D)The function of money in the mod

18、ern world.20.A)Educating and training citizens.C)Protecting peoples life and property.C)Improving public translation.D)Building hospitals and public libraries. 21.A)By asking for donations.C)By selling government bonds.B)By selling public lands.D)By exploiting natural resources.Questions 22 to 25 ar

19、e based on the passage you have just heard.22.A)It is located at the center of the European continent.B)It relies on tourism as its chief source of revenues.C)It contains less than a square mile of land.D)It is surrounded by France on three sides. 23.A)Its beauty is frequently mentioned in American

20、media.B)Its ruler Prince Rainier married an American actress.C)It is where many American movies are shot.D)It is a favorite place Americans like to visit. 24.A) Tobacco.B) Potatoes.C) Machinery.D) Clothing 25.A)European history.C) Small countries in Europe.B)European geography. D) Tourist attraction

21、s in Europe.PART Reading Comprehension （40 minutes）Section ADirections： In this section， there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your cho

22、ices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.The ocean is heating up. Thats the conclusion of a new study that finds tha

23、t Earths oceans now (26)heat at twice the rate they did 18 years ago. Around half of ocean heat intake since 1865 has taken place since 1997, researchers report online in Nature Climate Change.Warming waters are known to (27)to coral bleaching(珊瑚白化) and they take up more space than cooler waters, ra

24、ising sea (28). While the top of the ocean is studied, its depths are more difficult to (29)The researchers gathered 150 years of ocean temperature data in order to get better (30)of heat absorption from surface to seabed. They gathered together temperature readings collected by everything from a 19

25、th century (31)of British naval ships to modern automated ocean probes. The extensive data sources, (32)with computer simulations(计算机模拟), created a timeline of ocean temperature changes, including cooling from volcanic outbreaks and warming from fossil fuel (33).About 35 percent of the heat taken in

26、 by the oceans during the industrial era now residents at a (34)of more than 700 meters, the researchers found. They say theyre (35)whether the deep-sea warming canceled outwarming at the seas surface.A )absorbB)combinedC)contributeD)depthE)emissionF)excursionG)exploreH)floor I)heights J)indifferent

27、K)levels L)mixedM)picture N)unsure O)voyageSection B Directions：In this section， you are gonging to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a pa

28、ragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer sheet 2.The Secret to Raising Smart Kids A I first began to investigate the basis of human motivation-and how people persevere after setbacks-as a psychology graduate st

29、udent at Yale University in the 1960s. Animal experiments by psychologists at the University of Pennsylvania had shown that after repeated failures, most animals conclude that a situation is hopeless and beyond their control. After such an experience an animal often remains passive even when it can

30、effect change-a state they called learned helplessness.BPeople can learn to be helpless, too. Why do some students give up when encounter difficulty, whereas others who are no more skilled continue to strive and learn? One answer, I soon discovered, lay in peoples beliefs about why they had failed.C

31、 In particular, attributing poor performance to a lack of ability depresses motivation more than does the belief that lack of effort is to blame. When I told a group of school children who displayed helpless behavior that a lack of effort led to their mistakes in math, they learned to keep trying wh

32、en the problems got tough. Another group of helpless children who were simply rewarded for their success on easier problems did not improve their ability to solve harm math problems. These experiments indicated that a focus on effort can help resolve helplessness and generate success.D Later, I deve

33、loped a broader theory of what separates the two general classes of learners-helpless versus mastery-oriented. I realized these different types of students not only explain their failures differently, but they also hold different “theories” of intelligence. The helpless ones believe intelligence is

34、a fixed characteristic: you have only a certain amount, and thats that. I call this a fixed mind-set(思维模式).Mistakes crack their self-confidence because they attribute errors to a lack of ability, which they feel powerless to change. They avoid challenges because challenges make mistakes more likely.

35、 The mastery-orient children, on the other hand, think intelligence is not fixed and can be developed through education and hard work. Such children believe challenges are energizing rather than intimidating (令人生畏);they offer opportunities to learn. Students with such a growth mind-set were destined

36、(注定)for great academic success and were quite likely to outperform their counterparts.E We validated these expectations in a study in which two other psychologists and I monitored 373 student for two years during the transition to junior high school, when the work gets more difficult and the grading

37、 more strict, to determine how their mind-sets might affect their math grades. At the beginning of seventh grade, we assessed the students mind-sets by asking them to agree or disagree with statements such as Your intelligence is something very basic about you that you cant really change. We then as

38、sessed their beliefs about other aspects of learning and looked to see what happened to their grades.F As predicted, the students with a growth mind-set felt that learning was more important goal than getting good grades. In addition, they held hard work in high regard, They understood that even gen

39、iuses have to work hard. Confronted by a setback such as a disappointing test grade, students with a growth mind-set said they would study harder or try a different strategy. The students who held a fixed mind-set, however, were concerned about looking smart with less regard for learning. They had n

40、egative views of effort, believing that having to work hard was a sign of low ability. They thought that a person with talent or intelligence did not need to work hard to do well. Attributing a bad grade to their own lack of ability, those with a fixed mind-set said that would study less in the futu

41、re, try never to take that subject again and consider cheating on future tests.G Such different outlook had a dramatic impact on performance. At the start of junior high, the math achievement test scores of the students with a growth mind-set were comparable to the those of students who displayed a

42、fixed mind-set. But as the work became more difficult, the students with a growth mind-set showed greater persistence. As a result, their math grades overtook those of the other students by the end of the first semester-and the gap between the two groups continued to widen during the two years we fo

43、llowed them.H A fixed mind-set can also hinder communication and progress in the workplace and discourage or ignore constructive criticism and advice. Research shows that managers who have a fixed mind-set are less likely to seek or welcome feedback from their employees than are managers with a grow

44、th mind-set.I How do we transmit a growth mind-set to our children? One way is by telling stories about achievements that result from hard work. For instance, talking about mathematical geniusesWho were more or less born that way puts students in a fixed mind-set, but mathematicians who fell in love

45、 with math and developed amazing skills produce a growth mind-set.J In addition, parents and teachers can help children by providing explicit instruction regarding the mind as a learning machine, I designed an eight-session workshop for 91 students whose math grades were declining in their first yea

46、r of junior high. Forty-eight of the students received instruction in study skills only, whereas the others attended a combination of study skills sessions and classes in which they learned about the growth mind-set and how to apply it to schoolwork. In the growth mind-set classes, students read and

47、 discussed an article entitled “You Can Grow Your Brain.” They were taught that the brain is like a muscle that gets stronger with use and that learning prompts the brain to grow new connections. From such instruction, many students began to see themselves as agents of their own brain development. D

48、espite being unaware that there were two types of instruction, teachers reported significant motivational changes in 27% of the children in the growth mind-set workshop as compared with only 9% of students in the control group.KResearch is converging(汇聚)on the conclusion that great accomplishment an

49、d even genius is typically the result of years of passion and dedication and not something that flows naturally from a gift.36.The authors experiment shows that students with a fixed mind-set believe having to work hard is an indication of low ability.37.Focusing on effort is effective in helping ch

50、ildren overcome frustration and achieve success.38.We can cultivate a growth mind-set in children by telling success stories that emphasize hard work love of learning.39.Students belief about the cause of their failure explains their attitude toward setbacks.40.In the authors experiment, student wit

51、h a growth mind-set showed greater perseverance in solving difficult math problems.41.The author conducted an experiment to find out about the influence of students mind-sets on math learning.42.After failing again and again, most animals give up hope.43.Informing students about the brain as a learn

52、ing machine is a good strategy to enhance their motivation for learning.44.People with a fixed mind-set believe that ones intelligence is unchangeable.45.In the workplace, feedback may not be so welcome to managers with a fixed mind-set.Section CDirections：There are 2 passages in this section .Each

53、passage is followed by some questions or unfinished statements. For each of them there are four choices maked A），B），C）and D）.You should decide on the best choice and mark the corresponding letter on Answer Sheet2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the fo

54、llowing passage.Sugar, alcohol and tobacco, economist Adam Smith once wrote, are commodities which are nowhere necessaries of life, which have become objects of almost universal consumption, and which are, therefore, extremely popular subjects of taxation.Two and a half centuries on, most countries

55、impose some sort of tax on alcohol and tobacco. With surging obesity levels putting increasing strain on public health systems, governments around the world have begun to toy with the idea of taxing sugar as well.Whether such taxes work is a matter of debate. A preliminary review of Mexicos taxation

56、 found a fall in purchases of taxed drinks as well as a rise in sales if untaxed and healthier drinks. By contrast, a Danish tax on foods high in fats was abandoned a year after its introduction, amid claims that consumers were avoiding it by crossing the border to Germany to satisfy their desire fo

57、r cheaper, fattier fare.The food industry has, in general, been firmly opposed to such direct government action. Nonetheless, the renewed focus on waistlines means that industry groups are under pressure to demonstrate their products are healthy as well as tasty.Over the past three decades, the indu

58、stry has made some efforts to improve the quality of its offerings. For example, some drink manufactures have cut the amount of sugar in their beverages.Many of the reductions over the past 30 years have been achieved either by reducing the amount of sugar, salt or fat in a product, or by finding an

59、 alternative ingredient. More recently, however.Some companies have been investing money in a more ambitious undertaking: learning how to adjust the fundamental make-up of the food they sell. For example, having salt on the outside, but none on the inside, reduces the salt content without changing t

60、he taste.While reformulating recipes(配方)is one way to improve public health, it should be part of a multi-sided approach. The key is to remember thatthere is not just one solution. To deal with obesity, a mixture of approaches-including reformulation, taxation and adjusting portion sizes-will be nee

61、ded. There is no silver bullet.46. What did Adam Smith say about sugar, alcohol and tobacco?A)They were profitable to manufacture.B)They were in ever-increasing demand.C)They were subject to taxation almost everywhere.D)They were no longer considered necessities of life.47.Why have many countries st

62、arted to consider taxing sugar?A)They are under growing pressures to balance their national budgets.B)They find it ever harder to cope with sugar-induced health problems.C)They practice of taxing alcohol and tobacco has proved both popular and profitable.D)The sugar industry is overtaking alcohol an

63、d tobacco business in generating profits.48.What do we learn about Danish taxation on fat-rich foods?A)It did not work out as well as was expected.B)It gave rise to a lot of problems on the border.C)It could not succeed without German cooperation.D)It met with firm opposition from the food industry.

64、49.What is the more recent effort by food companies to make foods and drinks both healthy and tasty?A)Replacing sugar or salt with alternative ingredients.B)Setting a limit on the amount of sugar or salt in their products.C)Investing in research to find ways to adapt to consumers needs.D)Adjusting the physical composition of their products.50.What does the author mean by saying, at the end of the passage, There is no silver bullet(Line 4, Para 7)?A)There