大学四级-1858及答案解析.doc

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1、大学四级-1858 及答案解析(总分：709.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：106.50)1.Directions: For this part, you are allowed 30 minutes to write an essay. You should start your essay with a brief description of the picture and then express your views on the Chinese culture. You should write at least 120 words b

2、ut no more than 180 words. Write your essay on Answer Sheet 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)(1).A. He doesnt have enough money to buy a printer now.B. Hes not sure how much a printer costs.C. Hell buy a computer later this week.D. He lost the money he was

3、 saving.（分数：7.10）A.B.C.D.(2).A. Wait to play until after his 9 oclock class.B. Ask Carol to play tennis.C. Ask Carol if shes going to class.D. Get a tennis lesson from Carol.（分数：7.10）A.B.C.D.(3).A. They should ask for an increase in the budget.B. The calculations appear correct to her.C. Shell try t

4、o see what method was used.D. They need to make a copy of the budget.（分数：7.10）A.B.C.D.(4).A. He could bring something to the woman.B. Hed be happy to go with the woman.C. He wants the woman to get him a newspaper.D. Hed like something to eat.（分数：7.10）A.B.C.D.(5).A. The barbecue has been canceled.B.

5、The weather will probably be cool.C. The man will not be able to attend the barbecue.D. Casual dress will be appropriate.（分数：7.10）A.B.C.D.(1).A. He has bad study habits. B. He sleeps too much.C. He wakes up early. D. Hes an excellent student.（分数：7.10）A.B.C.D.(2).A. She dislikes fireworks. B. She has

6、 plans for the evening.C. She doesnt feel like going out. D. She has to get theater tickets.（分数：7.10）A.B.C.D.(3).A. The library is closed tonight. B. He doesnt know how to get to the library.C. Jean is using his car. D. He wont be able to help the woman.（分数：7.10）A.B.C.D.(1).A. On television. B. At r

7、egistration.C. In class. D. At work.（分数：7.10）A.B.C.D.(2).A. Students are not required to attend regular class lectures.B. The professor videotapes class lectures for review.C. Classes are held at various locations throughout the area.D. Students receive credit for work experience.（分数：7.10）A.B.C.D.(3

8、).A. It allows them to meet students from other universities.B. It promotes the concept of self-learning.C. It allows more flexibility in students schedules.D. It doesnt require any examinations.（分数：7.10）A.B.C.D.(1).A. Shes waiting for her father. B. Shes having her bicycle repaired.C. She wanted to

9、 surprise John. D. She works there.（分数：7.10）A.B.C.D.(2).A. To replace his stolen bicycle. B. To begin bicycling to work.C. To join a bicycle club. D. To train for a bicycle race.（分数：7.10）A.B.C.D.(3).A. Buy a used bicycle. B. Buy a racing bicycle.C. Replace the tires on his bicycle. D. Sell his old b

10、icycle to the shop.（分数：7.10）A.B.C.D.(4).A. It must be the right height. B. It must have several gears.C. It must have good tires. D. It must be the right weight.（分数：7.10）A.B.C.D.四、Section B(总题数：0，分数：0.00)五、Passage One(总题数：1，分数：21.30)(1).A. The nuclear transfer. B. The process taking DNAC. The normal

11、 reproductive process. D. The creation of cells.（分数：7.10）A.B.C.D.(2).A. It makes a clone from an ordinary, adult cell.B. It makes the first normal and healthy cloned animal.C. It paves the way to the cloning of human beings.D. It makes a cloned animal with only mother.（分数：7.10）A.B.C.D.(3).A. The Uni

12、ted States. B. The United Kingdom.C. Switzerland. D. Russia.（分数：7.10）A.B.C.D.六、Passage Two(总题数：1，分数：21.30)(1).A. Children under 16. B. Men between 20 and 33 years old.C. Women. D. Old people with serious diseases.（分数：7.10）A.B.C.D.(2).A. The number of smokers has been falling about 2 percent a year.B

13、. The number of smokers has been rising 20 percent a year.C. The number of smokers has been rising 2 percent a year.D. The number of smokers has been falling 20 percent a year.（分数：7.10）A.B.C.D.(3).A. To set a “smoke-free“ world.B. To teach the people in developing countries a lesson.C. To forbid far

14、mers to grow tobacco.D. To forbid smokers to buy tobacco products.（分数：7.10）A.B.C.D.七、Passage Three(总题数：1，分数：28.40)(1).A. To describe Twyla Tharps career.B. To introduce a well-known dancer.C. To provide background for a video presentation.D. To encourage the audience to study dance.（分数：7.10）A.B.C.D.

15、(2).A. The dancers in the video had more experience with Tharps choreography.B. Twyla Tharp was the lead dancer in the video.C. The filming techniques made the dance easier to understand.D. The new musical score was more appropriate for the topic.（分数：7.10）A.B.C.D.(3).A. Jazz. B. Folk. C. Classical.

16、D. Rock.（分数：7.10）A.B.C.D.(4).A. What the pineapple symbolizes.B. Twyla Tharps career in dance.C. How the video was filmed.D. The quality of the music in the video.（分数：7.10）A.B.C.D.八、Section C(总题数：1，分数：71.00)When you wish to give someone a gift it is always good to remember some of the basic rules. C

17、onsider the age, sex and the length of your (26) as well as the occasion. You should know when it is all right to give a gift of money, and when it would be (27) In any case, when you (28) a present, dont forget to send a thank-you note as soon as you (29) can.Often people like to take with them a g

18、ift for the hosts wife of a party they have been (30) to. This can be something just for the hosts wife, or something for the party, like (31) or fruit things which all may enjoy. If you stay at a friends house overnight for a (32) it is usual to take a gift showing (33) for their friendliness and t

19、heir kindness. Again, you may choose (34) the hosts wife alone or for the entire family.Sometimes it is not possible to return a favor as you would like to. When this happens you may (35) your own thoughtfulness by giving a thank-you gift, especially if you can find something unusual. Weddings are t

20、imes when gifts of money are greatly appreciated and quite acceptable. You should never leave money when you have been a weekend guest. Try to use imagination in choosing a thank-you gift.（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.

21、00)十、Section A(总题数：1，分数：35.50)A previously unknown disease, SARS has entered our daily vocabulary. Now we live in its (36) While SARS has taken center stage, an ancient and more infection disease is (37) its ugly head. That disease is panic or irrational fear.We need to have a healthy fear for SARS

22、and to take prudent steps in preventing its spread. But panic fear creates (38) it fears. The panic which is generated by SARS will weaken our immune system which (39) us more susceptible to this dreaded disease.While SARS is known to be (40) through close personal contact, fear is transmitted throu

23、gh all forms of media, including email. Only an infected SARS patient can transmit SARS to others. But fear can be transmitted by anyone, sometimes even with the best of intentions. As we know, fear about it does hurt us. So, how do we (41) with fear?Admit our fear and keep moving forward by living

24、our lives as normally as possible while taking necessary precautions. For example, it is (42) to stop shaking the hand of a healthy friend. At the same time, it is always a good practice to wash our hands before a mealthis should be done whether or not SARS (43) . Accept fear as a price of progress.

25、 SARS will hit us or it wont. Our fear will not positively change the outcome.Focus on the things you can control not on the things you cannot. Feed your faith, not your fear. Faith is a rational trust in whats trustworthy. We have a choice each day to exercise faith or to allow fear to rule our liv

26、es. We can feed our fear or we can starve it. (44) fear and faith will be with us every minute of every day. The emotion that we continually act upon, that is the one we feed, will dominate our lives. Fear will ruin us, but faith will lift us above the (45) we are facing.A. shadow I. knitB. select J

27、. dealC. raising K. ridiculousD. taken L. existsE. what M. forwardF. makes N. BothG. service O. crisisH. transmitted（分数：35.50）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:_十一、Section B(总题数：1，分数：71.00)Seed DispersalA. They fly, float, hitchhikeand even explode. But the many cl

28、ever ways seeds get around make sense: after all, a plants life depends on finding fertile ground in which to grow. The quest for survival has even led plants to develop delightful and devious ways of fooling us into working for them as they send their seeds out to conquer new lands. Birds help some

29、 fruits like the like the cherry by eating the fruit around the seed. The mistletoes seeds are covered with a sticky substance that substance that sticks to the bird that tries to eat it. The mistletoes seeds have to land on the or they die. Some seeds travel by sailing in the wind. Others hitchhike

30、 on animals. Some just get blown in the wind. Seeds can also grow in a flower and drop to the ground. When the seed leaves the flower of whatever it was in, its called dissemination. This is one of the most important steps in the seeds life. Some tree seeds drop directly below the parent and die bec

31、ause there is not enough light or food for them to grow.B. The seeds that travel by wind must be light-weight. Some of these seeds have wings, like the maple seed. Some of these seeds have gone 32 miles on a windy day. Another flying seed is the dandelion which gets planted because ants carry the se

32、eds down into their hole.C. Many plants use wind or water to carry their seeds, which are attached to fine, fluffy fibers that act as parachutes. Milkweed and thistle are among the plants whose seeds fly through the air. Trees such as willow, cottonwood, and sycamore, which grow along streams or cre

33、eks, drop many of their seeds into the water, where the fluff keeps them afloat on the current so it can carry them to new spots. Coconuts may drift for several months and travel for up to 1,200 miles (2,000 kin) before reaching dry land. The coconuts are able to float because of special fibers arou

34、nd their seeds.D. The hitchhikers are built with spikes, such as: the squirting cucumber. Then they travel to another place to grow. Some plants have sacks that explode, bursts open and shoot its seeds up to 27 feet (8m) away from the parent plant. The seeds zoom off and may travel as fast as 62 mil

35、es (100kin) per hour. Then there are the leapers, seeds that bounce or jump away from the parent plant. Jewelweed and witch hazel have seed cases that are so constructed that when they dry out, the slightest touch causes the case to burst and project the mature seeds through the air. Black walnuts h

36、ave spongy hulls so that they bounce when they hit the ground and roll away from the tree.E. At first glance some seeds designs make plants seem downright intelligent. Take apples, for instance. These sweet fruits have evolved to be bright and shiny for good reason: they attract people and other ani

37、mals. Drawn in by their effective advertising, we do the work of carrying apple seeds to new territory where the species can gain a toehold and expand. Indeed, we like apples so much that weve planted orchards especially for our favorite fruit. The practice has prompted some biologists to ask who re

38、ally is the boss in this relationship, do the apple trees work for usor do we work for them?F. Similar examples can be found throughout nature, from fig-eating bats that become unwitting cargo planes for fig seeds, to squirrels and woodpeckers that unknowingly help oak trees spread their acorns. An

39、African melon that grows a gourd-shaped bladder of water deep underground. In the dry season, aardvarks sniff out the watery melons, digging deep to quench their thirst. In the process, however, the thirsty aardvarks also sip up a few pit-like seeds, which they later deposit inside fertilizing manur

40、e. Its hard to say who gets the better end of the deal: the melon or the mammal.G. Both plant and animal, of course, get something out of these mutually beneficial relationships. Apple trees, for instance, didnt set out to fool people into picking their fruit. But somewhere along the line, certain a

41、pple trees ended up with a combination of genes that made their fruit a bit brighter or sweeter than all the other apples. Since we liked these apples so much, we began selectively planting the trees, and learned how to breed even sweeter varieties. In exchange for the tender, nutritious fruit, the

42、trees get steady care and even protection from potential enemies, such as insects and browsing deer.H. Evolutionary accidents may explain how other types of seeds developed, too. On the island of Mauritius, for instance, there once were trees that dropped their tasty fruits full of seeds to the grou

43、nd. Then, a new bird arrived on the island. It loved the fruits, but the trees seeds couldnt survive the trip through the birds stomach. As a result, the tree was in trouble, since fewer of its seeds were surviving. Then, perhaps through a random genetic mutation, one tree, produced fruit with tough

44、er seeds that could survive being eaten by the birds. Given this significant advantage, the tougher calvaria soon began to thrive. Eventually, they crowded out their ancestors completely.I. However evolution can sometimes produce a plant that is too reliant on a particular animal for survival. Thats

45、 exactly what happened on Mauritius. There, some biologists believe that lonely 300-year-old calvaria trees await a bird that will never return: the dodo. In 1598, Dutch explorers established a colony on Mauritius. In the search for food to eat and sell, the settlers plundered the islands natural re

46、sources, killing giant turtles, lizards, and the huge, flightless dodo birds with abandon. When the settlers did in the dodo, however, they may have also put the death of the calvaria in motion. Some biologists believe the dodos ate the trees fruit, and that the trip through the birds stomach helped

47、 prepare the seeds for germination. But now that their partner in life is gone, only a few calvaria survive. They are silent reminders of a lost past, with their seed-bearing fruit littering the ground and inviting a feast that will never come.（分数：71.00）(1).Calvaria trees on Mauritins depend on some

48、 bird to help their seeds sprout.（分数：7.10）填空项 1:_(2).Apples develop into more advantageous traits genetically.（分数：7.10）填空项 1:_(3).Squirting cucumber with hooks attaches to the seed.（分数：7.10）填空项 1:_(4).Calvaria trees on Mauritius undergo a structural change in a gene to survive.（分数：7.10）填空项 1:_(5).Witch hazel has seed exploding.（分数：7.10）填空项 1:_