大学四级-1068及答案解析.doc

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1、大学四级-1068 及答案解析(总分：710.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：106.50)1. （分数：106.50）_二、Part Listening Com(总题数：0，分数：0.00)三、Section A(总题数：4，分数：106.50)（分数：35.50）A.She has already had a job offer.B.She will line up to apply for a job.C.She“ll look for a job soon after graduation.D.She hopes to get a job o

2、ffer before graduation.A.In a bike parking lot.B.At a bike repair shop.C.In a bike showroom.D.In a bike factory.A.Shop for new clothes.B.Lose some weight.C.Have his jeans altered.D.Wear clothes that fit more tightly.A.Paul should take over his uncle“s business now.B.He doesn“t agree with the woman“s

3、 remarks.C.Paul should stay another year for his studies.D.He felt upset by Paul“s hasty decision.A.Go cross the bridge.B.Repeat the experiment.C.Come to the bridge game.D.Walt and see what will happen.（分数：21.30）A.It wasn“t a good investment.B.It should have lasted longer.C.The man should buy new pa

4、rts for it.D.The man won“t be able to get it repaired.A.Nick repaired it himself.B.Nick now works in a garage.C.Nick had his motorcycle fixed.D.Nick wasted his money.A.He wishes to have more courses like it.B.He finds it hard to follow the teacher.C.He wishes the teacher would talk more.D.He doesn“t

5、 like the teacher“s accent.Questions 9 to 12 are based on the conversation you have just heard. （分数：28.40）A.A summer holiday she“s been longing for.B.A national park she“s been to this summer.C.A research project that might interest her.D.A friend of his she wants to work with this summer.A.They are

6、 offered more food by tourists.B.They are being well protected by humans.C.They are physically adapted to the harsh winter.D.They use the tourist paths to find more food.A.They may attack farm animals in the farm.B.They caused abortion of farm animals.C.They destroy the farm crops seriously.D.They h

7、ave valuable furs and meat.A.She is well-informed with red foxes.B.She majors in animal disease prevention.C.She once visited the red fox national park.D.She“s been conducting relevant researches.Questions 13 to 15 are based on the conversation you have just heard. （分数：21.30）A.Her roommates are forg

8、etful and careless about duties.B.She usually quarrels with her roommates bitterly at night.C.Her roommates rarely cleaned the dormitory or fetched water.D.She can“t fall asleep due to her roommates“ constant chatting.A.There will usually be a cold war after a quarrel.B.Roommates should be careful w

9、ith complaints.C.Roommates should remind each other about their duties.D.There should be clear duty divisions between roommates.A.Trying to find a roommate who is considerate and careful.B.Ignoring the problem to avoid causing anything unpleasant.C.Having a quarrel with your roommate with offensive

10、words.D.Being tolerant and understanding each other“s shortcomings.四、Section B(总题数：0，分数：0.00)五、Passage One(总题数：1，分数：21.30)Questions 16 to 18 are based on the passage you have just heard. （分数：21.30）A.Love.B.Conflict.C.Violence.D.Mystery.A.The main character gains his ends.B.The main character dies in

11、 the end.C.The main character remains the same.D.The main character undergoes a change.A.We can understand life a little better.B.We can learn how to deal with people.C.We can find better ways to cope with conflicts.D.We can learn how bad persons can improve themselves.六、Passage Two(总题数：1，分数：21.30)Q

12、uestions 19 to 21 are based on the passage you have just heard. （分数：21.30）A.How to handle spiders.B.Spiders in the United States.C.People“s fear of spiders.D.A special kind of spider.A.Most spiders will not bite even when handled.B.Most spiders are poisonous and dangerous.C.Most spiders are likely t

13、o attack people.D.Most spiders have sharp eyes.A.She cannot find a husband for herself.B.The female spider is larger than the male one.C.The female spider often eats her husband.D.She is a black female spider.七、Passage Three(总题数：1，分数：28.40)Questions 22 to 25 are based on the passage you have just he

14、ard. （分数：28.40）A.She was tired of Indian tea.B.She had a son working in China.C.She believed it had a curing effect.D.She was fond of Chinese products.A.China and India have different traffic rules.B.Tea trade works wonders in both India and China.C.Chinese products are popular in both China and Ind

15、ia.D.The exchanges between India and China benefit both.A.It will move its head office to Shenzhen.B.It is seeking further development in China.C.It has attracted an investment of US $15 billion.D.It caught up with the US IT industry in 2008.A.His concern for his mother“s health.B.His support for dr

16、inking Chinese green tea.C.His surprise at China“s recent development.D.His wonder at the growth of India“s IT industry.八、Section C(总题数：1，分数：71.00)The widespread use of search engines and online databases has affected the way people remember information, researchers are reporting. The scientists, le

17、d by Betsy Sparrow, 1 whether people were more possibly to remember information that could easily be searched from a computer, just as students are more likely to 2 facts they believe will be on a test. Dr Sparrow and her team 3 four different memory experiments. In one, participants typed 40 bits o

18、f information into a computer. Half of the subjects insisted the information would be saved in the computer; the other half believed the contents they typed would be 4 . Those were more likely to remember information if they thought they would not be able to find it later. “Participants did not 5 to

19、 remember when they thought they could later 6 the information they had read,“ the authors write. The experiment explores an aspect of what is known as transactive memory (交换记忆) the 7 that we rely on our family, friends as well as co-workers to store information for us. “I love watching baseball,“ D

20、r Sparrow said. “But I know my husband knows baseball facts, so when I want to know something I ask him, and I don“t 8 to remember it.“ The Internet“s effects on memory are still largely 9 , Dr Sparrow said, adding that her experiments had led her to conclude that the Internet has become our primary

21、 storage system. “Human memory,“ she said, “ 10 new communications technology.“ （分数：71.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_九、Part Reading Compr(总题数：0，分数：0.00)十、Section A(总题数：1，分数：35.50)Pet birds can not only imitate sounds, they can distinguish between languages,

22、 potentially offering new 1 on how the brain recognizes speech, Japanese researchers say. It has already been 2 that monkeys, mice and other mammals can recognize different languages but this is the first time that birds have been found to 3 the ability, The Mainichi Daily News reported. A research

23、team 4 Java Sparrows to English and Chinese translations recorded by exchange students of two well-known Japanese novels, The Tale of Genji and Natsume Soseki“s I Am a Cat . A bird sitting on a perch first listened to the English 5 and was only allowed to eat afterwards. Then the researchers played

24、English and Chinese recordings at random and only allowed the bird to eat after hopping onto the perch with the English. The birds correctly identified the English recording 75 percent of the time. The same results were achieved with another two birds that were 6 to eat only when Chinese was played.

25、 “Humans are able to distinguish between languages, even ones they don“t know, from the intonation and pronunciation, and it seems that paddy birds have the 7 ability,“ said Keio University experimental psychology professor Shigeru Watanabe, who led the research. Watanabe said paddy birds like the J

26、ava Sparrow and parakeets, which are 8 vocally, learn sounds unique to their species after becoming adults, suggesting that they have a 9 ability to distinguish between sounds. The researchers did not use Japanese because it was the language the birds 10 listened to, the newspaper said. A. clues I.

27、possess B. confirmed J. process C. different K. rarely D. exposed L. same E. high M. skilled F. low N. suggestions G. normally O. version H. permitted（分数：35.50）十一、Section B(总题数：1，分数：71.00)Sun and Skin CancerA. When Ellen was a teenager, she loved to be out in the summer sun. She ran, she worked in h

28、er garden. She would swim and sit by the pool for hours soaking up the sunshine. And she never got tired of hearing people tell her how great her tan (古铜色) looked. B. As Ellen got older, she continued to spend lots of time outdoors in the sun. By the time she was in her forties, Ellen“s skin had dev

29、eloped a weathered look, with small wrinkles. That was okay, but she also began to notice brown patches developing on her face and hands. Ellen saw a doctor and found out she had a relatively mild case of skin cancer. Ellen was lucky. Her cancer was detected early. With early treatment, she was comp

30、letely cured. But Ellen had begun late in life to pay for all those years she had spent in the sun. Ellen isn“t unusual. The athletic, bronzed bodies we see in magazine ads and TV commercials constantly sell the idea that a good tan means health, attractiveness, and fun. The result is that many peop

31、le believe those ads. And they spend a lot of time in the sun often just trying to get tan. That golden or bronze color may look nice, but skin doctors know that sitting in the sun until you are baked several shades darker is not such a hot idea. C. According to the National Cancer Institute, over 4

32、00,000 Americans can expect to get some form of skin cancer this year. Most of these people will be 40 or older. However, skin cancer especially skin cancer caused by exposure to the sun can often take many years to develop. So it“s never too early to protect yourself in the sun. D. As soon as warm

33、weather arrives, lots of people who don“t already have dark skin want to start working on their tans. But a tan isn“t really nature“s way of making you look beautiful. A tan is your skin“s defense against the sun“s ultraviolet (紫外线的) radiation. UV rays damage skin cells. So when you decide to have a

34、 marathon roasting session in the sun, cells in your skin called melanocytes go to work overtime. They produce an extra supply of melanin (黑色素), the brown-black pigment (色素) that gives your skin its color. That extra melanin makes your skin darker, and that“s why you “tan“. E. Think of your tan as a

35、 shield of melanin your body produces to block out the UV radiation. The problem is, it“s a weak shield at best. There“s no way for your body to protect itself fully against the sun“s harmful rays especially if you expose yourself to the sun hour after hour, day after day, year after year. As you ge

36、t older, the buildup of many hours in the sun means more of a chance for skin damage and possibly skin cancer. F. This skin damage takes two general forms. Some UV attacks supporting cells in the lower layer of the skin, called the dermis (真皮). That causes skin to get dry, tough and wrinkled. Even m

37、ore serious is the damage the sun“s UV rays can do to the DNA of skin cells. DNA is the genetic blueprint that cells use to reproduce. With damaged DNA, the skin may produce mutated (变异的) cells that start to grow in an uncontrolled way: skin cancer. G. Nature gives you a clue about how much sun is e

38、nough by the color of your skin. If your skin is light, you don“t have much built-in protection against the sun. You probably tan very little, if at all. So be very careful in the sun. If you have dark skin and dark hair, you can probably stand a bit more sun exposure. Just don“t be fooled into thin

39、king you can stay out in the sun indefinitely. You can“t. People with dark skin also get sunburned and can suffer skin damage. It just takes a bit longer for the damage to show up. H. The three most common types of skin cancer are all connected with exposure to the sun. The most common of these is b

40、asal cell carcinoma. Basal cancers often look like wax- like growths or red, scaly (有鳞的) patches. They appear most often on the face, neck, or hands. Squamous (有鳞片的) cell cancer is the second common type. This cancer spreads more quickly. Squamous cell cancers often appear on the head, hands, or oth

41、er sun-exposed parts of the body. They show up as sharply outlined red, scaly patches. The third type of skin cancer is called melanoma (黑素瘤). Melanoma is often caused by too much exposure to the sun, but it can be brought on by other things as well. Melanoma show up as brown or black mole-like (像痣的

42、) growths on the back and legs. They can also appear on the palms, fingers, and toes. Melanoma is the rarest of these three kinds of skin caner, but it is the most serious form. While the overwhelming majority of basal and squamous cell cancer cases can be cured, many melanoma cases are fatal. I. Si

43、nce all of these forms of cancer can resemble harmless skin marks of irritations, be aware of marks of growths on your skin. And consult a doctor if you notice any changes. “In general, look for anything new in your skin,“ advises skin doctor, Dr. Louis Vogel. “Pay attention to anything on your skin

44、 that grows rapidly, that bleeds or has irregular color. Also, suspect any mole that itches or has some areas that are darker or higher than others.“ J. Although skin cancer is the most common form of cancer, it is also the most treatable if caught early. There are several methods of treatment. They

45、 include surgical removal, treatment with heat, extreme cold and freezing, as well as chemical treatment and use of X-rays. However, as with many other diseases, the most important “cure“ is prevention. “Cover as much skin as possible when you are out in the sun,“ warns Dr. Vogel. “When you are at t

46、he beach, wear sun blocks. There are many things in life you can“t prevent. But skin cancer is something you can often prevent if you take the proper precautions.“（分数：71.00）(1).Skin cancer may occur when the DNA of the skin cells is damaged.（分数：7.10）(2).Marks of growths on your skin should be paid a

47、ttention to, because they can be serious skin cancers.（分数：7.10）(3).When exposed to the sun, your skin gets tan just to defend against the ultraviolet radiation.（分数：7.10）(4).People at the age of 40 or above are estimated as the most likely skin cancer victims.（分数：7.10）(5).As a shield of melanin prote

48、cting you against the UV radiation, tan is actually weak.（分数：7.10）(6).The best “cure“ for skin cancer is prevention, that is, to cover as much. skin as possible when you are under the sun.（分数：7.10）(7).Melanoma is the least common form of skin cancer but the most fatal.（分数：7.10）(8).It is indicated by

49、 skin doctors that it is not healthy to expose to the sun until you are getting darker.（分数：7.10）(9).People with dark skin have a stronger built-in protection against the sun than those with light skin.（分数：7.10）(10).A good tan is promoted as health, attractiveness, and fun in magazine ads and TV commercials.（分数：7.10）十二、Sec