大学四级-1221及答案解析.doc

1、大学四级-1221 及答案解析(总分：712.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：106.00)1.据报道，我国南方多省市遭受严重冰冻雪灾；2号召在校大学生捐款捐物；3联系方式。A Poster Calling for Donation（分数：106.00）_二、Part Reading Compr(总题数：1，分数：70.00)North Pole ExplorationsIf Santa Claus really does reside at the North Pole, he must live a lonely life. The North

2、Pole isnt what most of us would consider a hospitable place as the average winter temperature there is 40 degrees below zero Fahrenheit (华氏温度) (-40 Celsius). And while Santas reindeer are considered Arctic animals, not much life actually calls the North Pole its permanent home.For adventurers, the N

3、orth Pole is comparable to outer space: an unknown frontier thats ripe for exploration-and exploitation. The region doesnt belong to any one country, so there are always disputes about who can lay claim to the untapped natural resources there. And although the prospect of melting ice around the Nort

4、h Pole isnt pleasant from a global warming standpoint, it could make those resources easier to reach.North pole locationThere are two North Poles. The one most people think of is the geographic North Pole, which is located approximately 450 miles (724 kilometers) north of Greenland, at 90 degrees no

5、rth latitude. The magnetic North Pole is based on the Earths magnetic field and is slowly drifting across the Canadian ArcticBecause all lines of longitude converge(向中聚集)at the North Pole, its not technically in any time zone (or, its m every time zone, depending on your perspective). As a result, w

6、e generally use Coordinated Universal Time (UTC) at the North Pole. Coordinated Universal Time is used mostly in astronomy and navigation: Its similar to Greenwich Mean Time (the time kept on the Greenwich meridian, longitude zero) but scientifically more precise.The sun sets at the North Pole in ea

7、rly October. The next sunrise is in early March. In between, theres a continuous twilight as the Earth moves on its axis. As a result of all this, the North Pole is obviously cold. In the winter, when the North Pole is farthest from the sun on the Earths axis, the average temperature is -40 degrees

8、Fahrenheit (-40 Celsius) during December and January, but can dip into the negative 50s. The seawater beneath the ice of the North Pole is a relatively mild - 28 degrees F (-33 C).In the summer, the Pole averages 32 degrees F (0 C). But the North Pole isnt as cold as it used to be.History of north p

9、ole expeditionsPeople have always had the desire to explore new places. Explorers throughout history have been motivated-at least in part-by the promise of fame and fortune, and North Pole exploration is no exception. The first North Pole explorers were in search of the Northwest Passage, a route th

10、rough the Arctic that would create easier trade and great wealth for the country that discovered it. When these explorers came back with tales of diamonds and coal near the Pole, the world started seeing the Arctic as a frozen treasure chest. In fact, a U. S. Geological Survey estimates that nearly

11、25 percent of the worlds undiscovered oil and gas are buried in the Arctic, which is a big reason for the disputes among the countries that are eager to claim the region for themselves.There were occasional North Pole expeditions in the 18th century (in 1755, the British Parliament offered a reward

12、to the first ship to come within a degree of the Pole), but it wasnt until the early 1900s that things really got going. In 1908, American Frederick Albert Cook was the first person to claim to have reached the North Pole. But his countryman Robert Edwin Peary, with support from Cooks traveling comp

13、anions, disputed the claim, and Cook was widely discredited.Peary (with a team of 24 men, 19 sledges and 133 sled dogs) ended up making the first undisputed visit to the North Pole on April 6, 1909. But theres still some controversy attached to the claim, mostly because of Pearys improbable 37-day t

14、ime frame. Most expeditions of the era took months at least-to come close to the goal. However. in April 2005. explorer Tom Avery recreated Pearys sled expedition with the same materials and supplies; he beat Pearys time by five hours. Some still doubt that Peary actually made it to the exact geogra

15、phic North Pole. but he usually gets the credit for being first.Trekking (艰苦跋涉) to the north poleSo, have we inspired you to brave the elements and make your own trek to the North Pole? Youre definitely going to want a heavy-duty coat and the best gear, but the most important part of your preparatio

16、n may be making a warm fat layer on your own body. So start eating. Whatever your method of travel-skiing, hiking, read biking, dog sledding-you can expect to consume a couple thousand calories a day more than that during training. The fat layer you build up will also help maintain your internal tem

17、perature-your body has to work extra hard to do this in subzero temperatures.While youre making a few extra trips to the buffet, you can start planning your trek. Well begin with the gear. Youll need several layers of clothing for the same reason you need the extra fat. The problem with such a deman

18、ding trek is that if your layers are too heavy, you could overheat, and sweat would immediately freeze to your skin. So, thinner, loose-fitting base layers made of sweat- wicking material are your best bet. For your feet. youll probably want to invest in some snowshoes, because the snow and ice can

19、get pretty deep. And so you dont get lost. youll definitely want to bring a GPS system.Planning a north pole expeditionYou also need to know when to go. The two-month period between March and May is your best bet. If you make the trip before March, dont expect a lot of sightseeing, because it will b

20、e dark the- entire time-not to mention a lot colder. But if you go much later than May, youll encounter melting conditions. There isnt any actual land underneath the North Pole. so you probably shouldnt attempt that unless you feel like swimming in the Arctic Ocean.Now that you have the time. youll

21、need a place to begin your journey. If youre coming from the Canadian side. Resolute Bay is where youll start. From there, youll take a four-hoar ride in a small plane, after which youll refuel and fly the rest of the way to your jumping-off place, Ward Hunt Island.Time frames for North Pole raps va

22、ry, depending on your mode of transportation. If you take a dog-sledding or skiing trip to the North Pole with Polar Adventures. for example, expect a weeklong training camp and a two-to-three-week trek. The cost for a dogsled trek can top $ 50,000.（分数：70.00）(1).The North Pole is such a place with e

23、xtremely unpleasant weather conditions for life that _.（分数：7.00）A.it delivers an undisturbed home for many animalsB.most creatures cannot adapt to its environmentC.only Santa Claus likes living there with his reindeerD.only a few kinds of creatures cant bear its coldness(2).What has caused the dispu

24、tes among countries at the North Pole?（分数：7.00）A.The rich natural resources.B.The unknown frontier.C.The melting ice.D.The global warming effect.(3).From this passage, we know that the magnetic North Pole _.（分数：7.00）A.overlaps exactly on the geographic North PoleB.is set according to the Earths magn

25、etic fieldC.moves along the Canadian ArcticD.locates 90 degrees north latitude(4).Why is Coordinated Universal Time mostly used at the North Pole?（分数：7.00）A.Because it is more precise than Green Mean Time.B.Because it is preferred by astronomers and navigators.C.Because it is similar to Greenwich Me

26、an Time.D.Because it is technically based on time zone.(5).How was the treasure of the Arctic transported from the frozen land?（分数：7.00）A.By the U. S. airforce.B.By the railway of Canada.C.By the Northwest Passage.D.By the oil pipes through the Arctic.(6).Who was the first undisputed explorer to the

27、 North Pole?（分数：7.00）A.Frederick Albert Cook.B.Tom Avery.C.Santa Claus.D.Robert Edwin Peary.(7).The most important preparation for the North Pole exploration is_.（分数：7.00）A.a fat layer on your own bodyB.a heavy-duty coatC.the best travel gearD.dog sledding(8).Overweight during the exploration of the

28、 North Pole would make you sweat, which would at once _.（分数：7.00）填空项 1:_(9).According to the passage, the best time to go for the North Pole exploration is _.（分数：7.00）填空项 1:_(10).If you start from the Canadian side, the jumping-off place should be _.（分数：7.00）填空项 1:_三、Part Listening Com(总题数：0，分数：0.00

29、)四、Section A(总题数：3，分数：105.00)Questions 11 to 18 are based on the conversation you have just heard.（分数：56.00）A.The train is leaving.B.The train is too crowded.C.The train is late.D.The train has stopped.A.Because he paid less attention to his injury.B.Because he hated to go to hospital.C.Because he c

30、onsidered the injury was not serious.D.Because he had to put on weight on it.A.She left home before 5 oclock.B.It is said that she left home at 4:30.C.She left home at 5:15.D.It took her ten minutes to be here.A.She doesnt like his acting, because it wasnt close to reality.B.She considers the actors

31、 acting is better than the actress.C.She thinks the man played quite good.D.She has no idea of the mans acting.A.She means Kate will be late for school.B.She believes Kate will not go to school.C.She means Kate must be joking.D.She means Kate will go to school after 9 a. m.A.Bill prefers music to En

32、glish lessons.B.Bill wants to be a musician in the future.C.Bill shows more interest in English learning,D.Bill doesnt make enough effort in English learning.A.The show was very impressive.B.She thought there were no tickets left.C.She thought the tickets for the left seats were sold out.D.The show

33、was over a long time ago.A.Because he wants to stay in school longer.B.Because he dropped out of school a long time ago.C.Because he doesnt like his major.D.Because he needs more credits before graduation.Questions 19 to 21 are based on the conversation you have just heard.（分数：21.00）A.It only has 6

34、rooms inside.B.It is a luxury building.C.It is the official home of the presidents.D.George Washington had lived in it.A.Because the white people dominated the country.B.Because white building shows dignity of the president.C.Because it had been burned in the war and repainted white.D.Because people

35、 hope the officials could be as simple as the color of white.A.It costs nothing to enter the room.B.Visitors can only visit it on weekends.C.Visitors can go into any room inside.D.Everyone has the right to visit the White House.Questions 22 to 25 are based on the conversation you have just heard.（分数

36、：28.00）A.When shes bored.B.When there is a good program on.C.After midnight.D.After swimming.A.He felt boring about the TV program.B.He lost his meal tickets in the cafeteria.C.He missed a good TV program.D.His TV was broken that night.A.Because he lost fifty dollars.B.Because he wasted his time.C.B

37、ecause his brain wasnt very active.D.Because he watched just one program.A.part of the brain is not used at all.B.Part of the brain becomes more passive.C.It takes longer to process visual information.D.It processes complex information less actively.五、Section B(总题数：3，分数：70.00)Passage OneQuestions 26

38、 to 28 are based on the passage you have just heard.（分数：21.00）A.Hunting other animals.B.Driving sheep.C.Guarding chickens.D.Keeping thieves away.A.Dogs are now treated as part of a family.B.Dogs still perform all the duties they used to do.C.People now keep dogs for the same reasons as before.D.Only

39、 old people are seen walking their dogs.A.What dogs can do.B.How to keep dogs.C.Dogs and their masters.D.Reasons for keeping dogs.Passage TwoQuestions 29 to 32 are based on the passage you have just heard.（分数：28.00）A.The conditions are not yet clear.B.The conditions are adequate.C.The conditions are

40、 the same as the speaker is used to.D.The conditions are expected to be rather poor.A.The speaker is going to travel in the new place.B.The speaker is going to settle down in the new place.C.The speaker will become a teacher in the new place.D.The speaker will go on with her study in the new place.A

41、.Fewer choices of food.B.Many ways to do washing.C.Modem lighting facilities.D.New types of drinking water.A.The speaker is unprepared for the new post.B.The speaker is unclear about the conditions there.C.The speaker is ready for all the difficulties there.D.The speaker is eager to know more about

42、the post.Passage ThreeQuestions 33 to 35 are based on the passage you have just heard.（分数：21.00）A.They can make more friends.B.They can have a chance to be away from their parents.C.They can have a chance to get close to nature.D.They can have a chance to feel a sense of independence.A.All the campe

43、rs have to stay at overnight camp.B.Some campers will miss their home at summer camp.C.The ages of campers must between eight and sixteen.D.Campers can stay at home at least one day during summer camp.A.Choose a good camp for their children.B.Discuss with their children what camps will be like.C.Tea

44、ch their children the rules at the camp.D.Make sure that their children will like the camp.六、Section C(总题数：1，分数：77.00)We often pass on little bits of information to our children, not .knowing ff they are true, and only because they were (36) on to us. This is usually how myths spread. Many myths abo

45、ut snakes exist, and it can be fun to try and (37) out how these stories originated. I have learned from my hobby of studying these myths that they often start when one person (38) a phenomenon incorrectly and passes on the false information. It always (39) me to see how quickly the misbelieve sprea

46、d even though science has already identified and proved the contrary.One common and colorful (40) is that the well-known garter snake swallows its young to save them from danger. The daily (41) of these snakes are well known in the United States because they tend to reside in parks and gardens. They

47、 like to live among greenery and in areas well (42) by plant life. Many children as well as adults enjoy observing these (43) because they see them quite often.Like all snakes, the garter swallows its food whole. Unlike most snakes, on the other hand, the garter (44) . I hypothesize that out ancesto

48、rs, while observing the garter snakes, assumed that the snake had previously (45) . Not many people know that garters are one of the few snakes that can bear live snakes. Unable to challenge the power of this creative myth, (46) .（分数：77.00）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:_填空项 1:_七、Part Reading Compr(总题数：0，分数：0.00)八、Section A(总题数：1，分数：90.00)When babies stare at the television-they are actually learning about the world, U.S. researchers s