大学英语四级分类模拟题472及答案解析.doc

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1、大学英语四级分类模拟题 472 及答案解析(总分：168.50，做题时间：90 分钟)一、Part Writing(总题数：1，分数：16.50)1.On Students Quitting School For this part, you are allowed 30 minutes to write a short essay entitled On Students Quitting School by commenting on the current phenomenon: many students choose to quit school before graduation.

2、 You should write at least 120 words but no more than 180 words. （分数：16.50）_二、Part Reading Compr(总题数：0，分数：0.00)四、Passage One(总题数：1，分数：71.00)As a volunteer, John Apollos is losing weightthe old-fashioned wayby eating less. Apollos has lowered his daily caloric intake 25% over the past eight months. T

3、he fat, not surprisingly, has melted away. But that“s not the real reason Apollos and the other participants in the program are eating only three-quarters of what they used to. The researchers are trying to determine whether restricting food intake can slow the ageing process and extend our life spa

4、n. “I feel better and lighter and healthier,“ says Apollos. “But if it could help you live longer, that would be pretty amazing.“ The idea is counterintuitive: If we eat to live, how can starving ourselves add years to our lives? Yet decades of calorie-restriction studies involving organisms ranging

5、 from microscopic yeast to rats have shown just that. Last July a long-term study led by researchers at the University of Wisconsin, found that calorie restriction seemed to extend the lives of humanlike rhesus monkeys (恒河猴) as well. The hungry primates fell victim to diabetes, heart and brain disea

6、se and cancer much less frequently than their well-fed counterparts did. Scientists have suspected that calorie restriction could extend the life span of animals since at least 1935, when researchers at Cornell University noticed that severely food-restricted lab rats lived twice as long as normal o

7、nes and were healthier. Other investigators began exploring the idea and learned that the secret is not merely a matter of body weight. One theory is that a state of slight hunger acts as a mild but constant stressor that makes an organism stronger and more resistant to the ills of ageing. Taking in

8、 fewer calories also slows metabolism (新陈代谢), and some data indicate that humans with a slower metabolism live longer. But even if these theories are correct, simply defining the mechanism is not the same as identifying the molecular pathways behind it. If researchers could determine those pathways,

9、 they might be able to pharmacologically mimic (模仿) the effect of calorie restriction. That could be the ultimate benefit of the CALORIE study. “Calorie restriction is pretty much the only thing out there that we know will not just prevent disease but also extend maximal life span,“ says Dr. Marc He

10、llerstein, a nutritionist at the University of California.（分数：71.00）(1).The purpose of keeping diet for John Apollos and other participants is to _.（分数：14.20）A.lose weight in order to keep slimB.prove how long people can survive if they lack foodC.prove if eating less food can extend life span and k

11、eep youngD.just keep a good mood and live a healthier life(2).What“s the meaning of “counterintuitive“ (Line 1, Para.2)?（分数：14.20）A.Unconventional.B.Incorrect.C.Comprehensible.D.Meaningless.(3).What does the research on rhesus monkeys imply?（分数：14.20）A.The less people eat, the shorter they will live

12、.B.Calorie restriction can help people suffer fewer diseases.C.People who often feel hungry can live longer.D.Humans depend on calories to stay alive.(4).From Dr. Marc Hellerstein“s words, we can infer that _.（分数：14.20）A.people who are thin can survive longer than those who aren“tB.effective calorie

13、 restriction makes us healthier and live longerC.keeping diet cannot help people keep fit or live longerD.a state of hunger is beneficial for our health(5).What is the main idea of this passage?（分数：14.20）A.People should be thin in order to live longer.B.Keeping calorie restriction effectively makes

14、one live longer.C.Eating too much is really harmful to our health.D.People should form a good diet habit in daily life.五、Passage Two(总题数：1，分数：71.00)The appeal of advertising to buying motives can have both negative and positive effects. Consumers may be convinced to buy a product of poor quality or

15、high price because of an advertisement. For example, some advertisers have appealed to people“s desire for better fuel economy for their cars by advertising automotive products that improve gasoline mileage. Some of the products work. Others are worthless and a waste of consumers“ money. Sometimes a

16、dvertising is intentionally misleading. A few years ago a brand of bread was offered to dieters (节食者) with the message that there were fewer calories in every slice. It turned out that the bread was not dietetic (适合于节食的), but just regular bread. There were fewer calories because it was sliced very t

17、hin, but there were the same number of calories in every loaf. On the positive side, emotional appeals may respond to a consumer“s real concerns. Consider fire insurance. Fire insurance may be sold by appealing to fear of loss. But fear of loss is the real reason for fire insurance. The security of

18、knowing that property is protected by insurance makes the purchase of fire insurance a worthwhile investment for most people. If consumers consider the quality of the insurance plans as well as the message in the ads, they will benefit from“ the advertising. Each consumer must evaluate her or his ow

19、n situation. Are the benefits of the product important enough to justify buying it? Advertising is intended to appeal to consumers, but it does not force them to buy the product. Consumers still control the final buying decision.（分数：71.00）(1).Advertising can persuade the consumer to buy worthless pr

20、oducts by _.（分数：14.20）A.stressing their high qualityB.convincing him of their low priceC.maintaining a balance between quality and priceD.appealing to his buying motives(2).The reason why the bread advertisement is misleading is that _.（分数：14.20）A.thin slices of bread could contain more caloriesB.th

21、e loaf was cut into regular slicesC.the bread was not genuine breadD.the total number of calories in the loaf remained the same(3).The third paragraph tells us that _.（分数：14.20）A.sometimes advertisements really sell what the consumer needsB.advertisements occasionally force consumers into buying thi

22、ngs they don“t needC.the buying motives of consumers are controlled by advertisementsD.fare insurance is seldom a worthwhile investment(4).It can be inferred from the passage that a smart consumer should _.（分数：14.20）A.think carefully about the benefits described in the advertisementsB.guard against

23、the deceiving nature of advertisementsC.be familiar with various advertising strategiesD.avoid buying products that have strong emotional appeal(5).The passage is mainly about _.（分数：14.20）A.how to make a wise buying decisionB.ways to protect the interests of the consumerC.the positive and negative a

24、spects of advertisingD.the function of advertisements in promoting sales六、Part Translation(总题数：1，分数：10.00)2.Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2. 秦始皇是秦代的第一位皇帝。他从公元前 230 年到 221 年花了十年的时间逐一

25、消灭了六个不同的国家，并建立了中国历史上第一个 中央集权的封建国家 (centralized feudal state)。所有重要的中央和地方政府官员都由他任命和免职。在统治期间，他制定了一套法律以及标准 度量衡 (currency, weight and measures)，甚至书面语言的统一体系。所有这些措施在当时都促进了经济和文化的发展。 （分数：10.00）_大学英语四级分类模拟题 472 答案解析(总分：168.50，做题时间：90 分钟)一、Part Writing(总题数：1，分数：16.50)1.On Students Quitting School For this part

26、, you are allowed 30 minutes to write a short essay entitled On Students Quitting School by commenting on the current phenomenon: many students choose to quit school before graduation. You should write at least 120 words but no more than 180 words. （分数：16.50）_正确答案：()解析：On Students Quitting SchoolMan

27、y college students have quit school in recent years. They do it for different reasons. Some students quit school because of their poor health. A serious disease or a traffic accident may have made it impossible for them to continue their schooling. Other students may be forced to do it because their

28、 family couldn“t afford the tuition. However, there are some students who quit school out of their own choice. Some embrace a good job offer and leave school. Others may find that they cannot afford to lose the good opportunity to start their own business, so they quit school to start their career j

29、ust like Bill Gates. Whatever the reason, I think college students should think twice before deciding to quit school. After all, graduates are normally better prepared for their future than those who quit school. College education pays off in the long run.二、Part Reading Compr(总题数：0，分数：0.00)四、Passage

30、 One(总题数：1，分数：71.00)As a volunteer, John Apollos is losing weightthe old-fashioned wayby eating less. Apollos has lowered his daily caloric intake 25% over the past eight months. The fat, not surprisingly, has melted away. But that“s not the real reason Apollos and the other participants in the prog

31、ram are eating only three-quarters of what they used to. The researchers are trying to determine whether restricting food intake can slow the ageing process and extend our life span. “I feel better and lighter and healthier,“ says Apollos. “But if it could help you live longer, that would be pretty

32、amazing.“ The idea is counterintuitive: If we eat to live, how can starving ourselves add years to our lives? Yet decades of calorie-restriction studies involving organisms ranging from microscopic yeast to rats have shown just that. Last July a long-term study led by researchers at the University o

33、f Wisconsin, found that calorie restriction seemed to extend the lives of humanlike rhesus monkeys (恒河猴) as well. The hungry primates fell victim to diabetes, heart and brain disease and cancer much less frequently than their well-fed counterparts did. Scientists have suspected that calorie restrict

34、ion could extend the life span of animals since at least 1935, when researchers at Cornell University noticed that severely food-restricted lab rats lived twice as long as normal ones and were healthier. Other investigators began exploring the idea and learned that the secret is not merely a matter

35、of body weight. One theory is that a state of slight hunger acts as a mild but constant stressor that makes an organism stronger and more resistant to the ills of ageing. Taking in fewer calories also slows metabolism (新陈代谢), and some data indicate that humans with a slower metabolism live longer. B

36、ut even if these theories are correct, simply defining the mechanism is not the same as identifying the molecular pathways behind it. If researchers could determine those pathways, they might be able to pharmacologically mimic (模仿) the effect of calorie restriction. That could be the ultimate benefi

37、t of the CALORIE study. “Calorie restriction is pretty much the only thing out there that we know will not just prevent disease but also extend maximal life span,“ says Dr. Marc Hellerstein, a nutritionist at the University of California.（分数：71.00）(1).The purpose of keeping diet for John Apollos and

38、 other participants is to _.（分数：14.20）A.lose weight in order to keep slimB.prove how long people can survive if they lack foodC.prove if eating less food can extend life span and keep young D.just keep a good mood and live a healthier life解析：解析 细节辨认题。由定位句可知，项目的研究者正致力于探究控制进食量是否能减缓衰老，延长寿命。故 C“证明少吃是否可以

39、延长寿命，保持年轻”符合题意。(2).What“s the meaning of “counterintuitive“ (Line 1, Para.2)?（分数：14.20）A.Unconventional. B.Incorrect.C.Comprehensible.D.Meaningless.解析：解析 语义理解题。由定位句可知，如果我们靠吃饭来维持生命，那么挨饿如何能使我们延年益寿呢?由此可知，节食减肥会延长寿命看似是不合乎常理的。故 A“不合常规的”符合题意。(3).What does the research on rhesus monkeys imply?（分数：14.20）A.Th

40、e less people eat, the shorter they will live.B.Calorie restriction can help people suffer fewer diseases. C.People who often feel hungry can live longer.D.Humans depend on calories to stay alive.解析：解析 细节辨认题。由定位句可知，研究人员发现，通过控制热量摄入，类人恒河猴的寿命似乎也得以延长。比起饱食终日的同类，那些吃不饱的恒河猴患糖尿病、心脏病、脑部疾病及癌症的概率大大地降低了。故选 B“控制热

41、量摄入有助于帮人们减少疾病的困扰”。(4).From Dr. Marc Hellerstein“s words, we can infer that _.（分数：14.20）A.people who are thin can survive longer than those who aren“tB.effective calorie restriction makes us healthier and live longer C.keeping diet cannot help people keep fit or live longerD.a state of hunger is bene

42、ficial for our health解析：解析 推理判断题。由定位句可知，既能预防疾病又能延年益寿的方法就是控制热量摄入。故B“有效的热量控制可以让我们更健康、活得更长久”符合题意。(5).What is the main idea of this passage?（分数：14.20）A.People should be thin in order to live longer.B.Keeping calorie restriction effectively makes one live longer. C.Eating too much is really harmful to ou

43、r health.D.People should form a good diet habit in daily life.解析：解析 主旨大意题。纵观全文可知，有效地控制人体热量的摄入可以延长人的寿命。故 B“有效地控制热量可以使人更长寿”符合题意。五、Passage Two(总题数：1，分数：71.00)The appeal of advertising to buying motives can have both negative and positive effects. Consumers may be convinced to buy a product of poor qual

44、ity or high price because of an advertisement. For example, some advertisers have appealed to people“s desire for better fuel economy for their cars by advertising automotive products that improve gasoline mileage. Some of the products work. Others are worthless and a waste of consumers“ money. Some

45、times advertising is intentionally misleading. A few years ago a brand of bread was offered to dieters (节食者) with the message that there were fewer calories in every slice. It turned out that the bread was not dietetic (适合于节食的), but just regular bread. There were fewer calories because it was sliced

46、 very thin, but there were the same number of calories in every loaf. On the positive side, emotional appeals may respond to a consumer“s real concerns. Consider fire insurance. Fire insurance may be sold by appealing to fear of loss. But fear of loss is the real reason for fire insurance. The secur

47、ity of knowing that property is protected by insurance makes the purchase of fire insurance a worthwhile investment for most people. If consumers consider the quality of the insurance plans as well as the message in the ads, they will benefit from“ the advertising. Each consumer must evaluate her or

48、 his own situation. Are the benefits of the product important enough to justify buying it? Advertising is intended to appeal to consumers, but it does not force them to buy the product. Consumers still control the final buying decision.（分数：71.00）(1).Advertising can persuade the consumer to buy worthless products by _.（分数：14.20）A.stressing their high qualityB.convincing him of their low priceC.maintaining a balance between quality and priceD.appealing to his buying motives 解析：解析 推断题。看第一段，做第一题。文章第一句是主题，后面是一个例子解释说明。例子说广告通过一些手段引起人们的购买欲望。A 是细节例子，是为了说