大学英语四级分类模拟题469及答案解析.doc

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1、大学英语四级分类模拟题 469 及答案解析(总分：182.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：20.00)1.Directions: For this part, you are allowed 30 minutes to write a short essay on the following question. You should write at least 120 words but no more than 180 words. Nowadays, food has become easier to prepare. Has this cha

2、nge improved the way people live? （分数：20.00）_二、Part Reading Compr(总题数：0，分数：0.00)四、Passage One(总题数：1，分数：71.00)Declining mental function is often seen as a problem of old age, but certain aspects of brain function actually begin their decline in young adulthood, a new study suggests. The study, which

3、followed more than 2,000 healthy adults between the ages of 18 and 60, found that certain mental functionsincluding measures of abstract reasoning, mental speed and puzzle-solving started to dull as early as age 27. Dips in memory, meanwhile, generally became apparent around age 37. On the other han

4、d, indicators of a person“s accumulated knowledgelike performance on tests of vocabulary and general knowledgekept improving with age, according to findings published in the journal Neurobiology of Aging . The results do not mean that young adults need to start worrying about their memories. Most pe

5、ople“s minds function at a high level even in their later years, according to researcher Timothy Salthouse. “These patterns suggest that some types of mental flexibility decrease relatively early in adulthood, but that the amount of knowledge one has, and the effectiveness of integrating it with one

6、“s abilities, may increase throughout all of adulthood if there are no diseases,“ Salthouse said in a news release. The study included healthy, educated adults who took standard tests of memory, reasoning and perception at the outset and at some point over the next seven years. The tests are designe

7、d to detect subtle (细微的) changes in mental function, and involve solving puzzles, recalling words and details from stories, and identifying patterns in collections of letters and symbols. In general, Salthouse and his colleagues found, certain aspects of cognition (认知能力) generally started to decline

8、 in the late 20s to 30s. The findings shed light on normal age-related changes in mental function, which could aid in understanding the process of dementia (痴呆), according to the researchers. “By following individuals over time,“ Salthouse said, “we gain insight in cognition changes, and may possibl

9、y discover ways to slow the rate of decline.“ The researchers are currently analyzing the study participants, health and lifestyle to see which factors might influence age-related cognitive changes.（分数：71.00）(1).What is the common view of mental function?（分数：14.20）A.It varies from person to person.B

10、.It weakens in one“s later years.C.It gradually expands with age.D.It indicates one“s health condition.(2).What does the new study find about mental functions?（分数：14.20）A.Some diseases inevitably lead to their decline.B.They reach a peak at the age of 20 for most people.C.They are closely related to

11、 physical and mental exercise.D.Some of them begin to decline when people are still young.(3).What does Timothy Salthouse say about people“s minds in most cases?（分数：14.20）A.They tend to decline in people“s later years.B.Their flexibility determines one“s abilities.C.They function quite well even in

12、old age.D.Their functioning is still a puzzle to be solved.(4).Although people“s minds may function less flexibly as they age, they _.（分数：14.20）A.may be better at solving puzzlesB.can memorize things with more easeC.may have greater facility in abstract reasoningD.can put what they have learnt into

13、more effective use(5).According to Salthouse, their study may help us _.（分数：14.20）A.find ways to slow down our mental declineB.find ways to boost our memoriesC.understand the complex process of mental functioningD.understand the relation between physical and mental health五、Passage Two(总题数：1，分数：71.00

14、)When companies consider their benefits mix, coverage for medical care is often top-of-mind. Yet there may be another, even more powerful concern driving employee coverage preferences: vision care. Roughly 75% of adults in the United States require some type of vision correction, and 84 percent of a

15、dults believe that vision benefits are somewhat or very important to them. As a result, vision assistance is moving higher and higher on the list of sought-after employee benefits. What“s driving the trend? One factor is the increasing power of eye examinations to detect systemic illness. In additio

16、n to identifying nearsightedness, farsightedness and astigmatism, routine eye exams now play a role in diagnosing conditions such as diabetes, brain aneurysms (脑动脉瘤), liver disease and stroke risk. Early identification, in turn, translates into markedly lower expenditures for employers. In 2014, eye

17、 problems will cost companies an estimated $8 billion in reduced productivity. Making sure employees get the right eye care helps employers reduce these losses. At the same time, it boosts their ability to retain loyal workers. So what“s the best way to get patients into the exam chair? One way is t

18、o provide a vision plan that lowers out-of-pocket (自己付费的) expenses. Indeed, research shows that out-of-pocket expensenot premiumsis the number-one factor employees consider when choosing a vision plan. “And that“s just smart,“ says independent insurance broker Shannon Enders. “Premiums make up only

19、about 30 percent of total out-of-pocket expenses. So it pays to look beyond the premium and see the real cost of a plan.“ A study conducted by Service Excellence Group Inc., a leading market research company, shows how the right vision insurance plan can result in across-the-board (全面的) savings for

20、employees. The study compared the prices customers with different insurance plans paid for the same popular pair of eyeglasses at independent doctors and retail chains. It found that customers with insurance plans that were most successful at keeping out-of-pocket expenses low saved hundreds of doll

21、ars. With eyeglasses becoming as much of a fashion accessory (装饰品) as a vision aid, forward-thinking companies are beginning to take note. Enders says more of his clients are saying yes to vision care plans. “Employees care about their eyes,“ he says. “And offering benefits packages with the feature

22、s employees care most about will become an even more important corporate strategy going forward.“（分数：71.00）(1).What is the meaning of the last sentence of paragraph one?（分数：14.20）A.Vision assistance is listed on the list of popular worker interests.B.Vision assistance is becoming more and more popul

23、ar among employees.C.Vision assistance is considered as one of the employee benefits.D.Vision assistance is the top concern of the employees.(2).What are the functions of eye examinations?（分数：14.20）A.Identifying nearsightedness, farsightedness and astigmatism.B.Diagnosing systemic illness.C.Diagnosi

24、ng diabetes, brain aneurysms, liver disease and stroke risk.D.Identifying eyesight problems and detecting systemic illness.(3).What are the advantages of right vision care plan for the employers?（分数：14.20）A.It can reduce the losses caused by eye problems.B.It helps the employers keep the employees.C

25、.It can lower the expenses of the employers and keep the workers.D.It can help increase the employees“ income.(4).What does the study of Service Excellence Group Inc. suggest?（分数：14.20）A.The most successful vision insurance plan helps employees save the most money.B.A vision insurance plan helps emp

26、loyees save hundreds of dollars at a time.C.Eyeglasses at independent doctors cost more than in retail chains.D.Eyeglasses at independent doctors cost less than in retail chains.(5).What can be learned from Shannon Enders“ words?（分数：14.20）A.It takes a lot of money to look beyond the premium.B.Consid

27、ering the real cost of a plan costs too much.C.The company should take employees“ most concerned benefits seriously.D.The company should vision insurance plan as a strategy.六、Part Translation(总题数：1，分数：20.00)2.筷子中国人从 3000 年前起就已经将筷子作为主要的餐具来使用了。筷子可由不同的材料制成，例如：象牙、青铜、金子、银子、木头或竹子。过去人们用银制的筷子检查食物是否有毒。据信使用筷子

28、可以使人更加聪明。使用筷子时要避免把筷子垂直插在米饭碗里，因为这种做法是祭祀时的习俗。由于敲碗让人联想到乞丐行乞，所以中国人一般不用筷子敲碗。 （分数：20.00）_大学英语四级分类模拟题 469 答案解析(总分：182.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：20.00)1.Directions: For this part, you are allowed 30 minutes to write a short essay on the following question. You should write at least 120 words but

29、 no more than 180 words. Nowadays, food has become easier to prepare. Has this change improved the way people live? （分数：20.00）_正确答案：()解析：范文 Food Preparation Methods Improve Our LifeThe twentieth century has brought with it many advances. With those advances, human life has changed dramatically. In s

30、ome ways life is worse, but mostly it is better. Changes in food preparation methods, for example, have improved our life greatly. The convenience of preparing food today is amazing. Even stoves have gotten too slow for us. Microwave cooking is much easier. We can press a few buttons and a meal is c

31、ompletely cooked in just a short time. People used to spend hours preparing an oven-cooked meal, and now they can allocate that time to other better things. Plus, there are all kinds of portable, prepackaged foods we can buy. Heat them in the microwave in the office, and lunch at work is quick and e

32、asy. Our life pace is fast, but people still like good food. New food preparation technology has given us more choices. Today, we can prepare food that is more convenient and of greater variety than ever before.二、Part Reading Compr(总题数：0，分数：0.00)四、Passage One(总题数：1，分数：71.00)Declining mental function

33、 is often seen as a problem of old age, but certain aspects of brain function actually begin their decline in young adulthood, a new study suggests. The study, which followed more than 2,000 healthy adults between the ages of 18 and 60, found that certain mental functionsincluding measures of abstra

34、ct reasoning, mental speed and puzzle-solving started to dull as early as age 27. Dips in memory, meanwhile, generally became apparent around age 37. On the other hand, indicators of a person“s accumulated knowledgelike performance on tests of vocabulary and general knowledgekept improving with age,

35、 according to findings published in the journal Neurobiology of Aging . The results do not mean that young adults need to start worrying about their memories. Most people“s minds function at a high level even in their later years, according to researcher Timothy Salthouse. “These patterns suggest th

36、at some types of mental flexibility decrease relatively early in adulthood, but that the amount of knowledge one has, and the effectiveness of integrating it with one“s abilities, may increase throughout all of adulthood if there are no diseases,“ Salthouse said in a news release. The study included

37、 healthy, educated adults who took standard tests of memory, reasoning and perception at the outset and at some point over the next seven years. The tests are designed to detect subtle (细微的) changes in mental function, and involve solving puzzles, recalling words and details from stories, and identi

38、fying patterns in collections of letters and symbols. In general, Salthouse and his colleagues found, certain aspects of cognition (认知能力) generally started to decline in the late 20s to 30s. The findings shed light on normal age-related changes in mental function, which could aid in understanding th

39、e process of dementia (痴呆), according to the researchers. “By following individuals over time,“ Salthouse said, “we gain insight in cognition changes, and may possibly discover ways to slow the rate of decline.“ The researchers are currently analyzing the study participants, health and lifestyle to

40、see which factors might influence age-related cognitive changes.（分数：71.00）(1).What is the common view of mental function?（分数：14.20）A.It varies from person to person.B.It weakens in one“s later years. C.It gradually expands with age.D.It indicates one“s health condition.解析：解析 细节辨认题。定位部分指出，心智功能逐渐衰退经常被

41、视作一种老年间题。由此可见，人们普遍认为晚年时心智功能逐渐衰退，故答案为 B。(2).What does the new study find about mental functions?（分数：14.20）A.Some diseases inevitably lead to their decline.B.They reach a peak at the age of 20 for most people.C.They are closely related to physical and mental exercise.D.Some of them begin to decline wh

42、en people are still young. 解析：解析 细节辨认题。定位部分指出，一项新研究表明，其实某些大脑功能在成年初期就已经开始衰退了。该句中成年初期指的就是很年轻的时候，故答案为 D。(3).What does Timothy Salthouse say about people“s minds in most cases?（分数：14.20）A.They tend to decline in people“s later years.B.Their flexibility determines one“s abilities.C.They function quite we

43、ll even in old age. D.Their functioning is still a puzzle to be solved.解析：解析 细节辨认题。定位句指出，根据研究者蒂莫西萨尔特豪斯的说法，大部分人的思维功能甚至在晚年都会处于较高的水平。C 中的 in old age 是对定位句中的 in their later years 的同义转述，故答案为 C。(4).Although people“s minds may function less flexibly as they age, they _.（分数：14.20）A.may be better at solving

44、puzzlesB.can memorize things with more easeC.may have greater facility in abstract reasoningD.can put what they have learnt into more effective use 解析：解析 推理判断题。定位段指出，这些模式表明，某些方面的思维灵活度在成年初期会相对下降，但只要一个人没有疾病，他具备多少知识，以及把这些知识和能力有效结合的能力，也许会在整个成年期随着年龄的增长而增强。D 的含义是他们能有效地应用所学到的知识，与定位段表述一致，故答案为 D。(5).Accordin

45、g to Salthouse, their study may help us _.（分数：14.20）A.find ways to slow down our mental decline B.find ways to boost our memoriesC.understand the complex process of mental functioningD.understand the relation between physical and mental health解析：解析 推理判断题。定位段指出，通过长期追踪研究个体，我们在认知能力的变化方面有了一定的发现，同时也有可能发现

46、减缓这种衰退速度的方法。A 的含义也是找到减缓心智功能衰退的办法，故答案为 A。五、Passage Two(总题数：1，分数：71.00)When companies consider their benefits mix, coverage for medical care is often top-of-mind. Yet there may be another, even more powerful concern driving employee coverage preferences: vision care. Roughly 75% of adults in the Unite

47、d States require some type of vision correction, and 84 percent of adults believe that vision benefits are somewhat or very important to them. As a result, vision assistance is moving higher and higher on the list of sought-after employee benefits. What“s driving the trend? One factor is the increas

48、ing power of eye examinations to detect systemic illness. In addition to identifying nearsightedness, farsightedness and astigmatism, routine eye exams now play a role in diagnosing conditions such as diabetes, brain aneurysms (脑动脉瘤), liver disease and stroke risk. Early identification, in turn, translates into markedly lower expenditures for employers. In 2014, eye problems will cost companies an estimated $8 billion in reduced productivity. Making sure employees get the right eye care helps employers reduce these losses. At the same time, it boosts their ability to r