大学四级-1900及答案解析.doc

《大学四级-1900及答案解析.doc》由会员分享，可在线阅读，更多相关《大学四级-1900及答案解析.doc（46页珍藏版）》请在麦多课文档分享上搜索。

1、大学四级-1900 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.Directions:For this part, you are allowed 30 minutes to write a short essay entitled Should Smoking Be Banned in Public Places? You should write at least 120 words following the outline given below.1. 近年来越来越多的公共场所禁烟；2. 这项举措在受到拥护的同

2、时也引发了争议；3. 你的看法。_（分数：106.00）_二、Part Reading Compr(总题数：1，分数：70.00)Working to Improve the Conditions of Everglades National ParkWhen many people think of Florida, images of sandy coastlines or theme park rides come to mind. But about an hour south of Miami lies a natural wilderness different from anyw

3、here else in the United States.Everglades National Park is the largest subtropical wilderness in the country. The park is home to several rare and endangered species. It is also the third largest national park in the lower forty-eight states, after Death Valley and Yellowstone. More than one million

4、 people visit the Everglades each year.Wildlife reservesThe Everglades is considered one of the great biological wonders of the world. The expansive wetlands stretch across more than six hundred thousand hectares. It is a place where plants and animals from the Caribbean Sea share an ecosystem with

5、native North American species.Unlike most other national parks, Everglades National Park was created to protect an ecosystem from damage. The Everglades is home to thirty-six species that are considered threatened or protected. They include the Florida panther, the American crocodile and the West In

6、dian manatee. In addition, more than three hundred fifty bird species and three hundred species of fresh and saltwater fish live within the park. The Everglades is also home to forty species of mammals and fifty reptile species.Exotic plants can also be found in the Everglades. They include what is

7、said to be the largest growth of mangrove trees in the western half of the world. Gumbo-limbo trees, known for their peeling red skin, strangler figs and royal palms are also among the areas plant life. The Everglades is also home to the countrys largest living mahogany tree. Sawgrass grows in some

8、areas of the park. Be careful-it is very sharp, with teeth just like a saw. It can grow up to four meters tall.With about one and one-half meters of rainfall each year, plants and trees never stop growing in the Everglades.Want to visit it?The dry, winter season is the favorite of most visitors, whe

9、n insects like mosquitoes are less of a problem. The rainy season lasts from June to November. There are many ways to explore the Everglades. Visitors could see American crocodiles while hiking the Anhinga Trail. The Everglades is the only place on Earth where fresh water crocodiles and saltwater cr

10、ocodiles live in the same areas. Visitors using canoes or airboats are likely to see large groups of wading birds like the wood stork or great blue heron. It is even possible to see flamingos in the Everglades.This spring,Everglades National Park.launched a visitation program to what was once a high

11、ly restricted military base. Park officials are working to recover a missile base used in the 1960s. The base played a part in the nuclear tensions between the United States and the Soviet Union.The government built the Florida base shortly after the discovery of Soviet missiles about three hundred

12、kilometers away, on the island of Cuba. Tensions were high during the Cuban missile crisis. But missiles stored at the American base were never fared.The base was closed and all missile equipment was removed in the 1970s. Today only the buildings remain.This year, the historic area had many visitors

13、, including former American service members who remember the missile crisis. The park hopes to offer more trips next spring, to help support the history for those who lived through it and for future generations.Threats facing itExperts say changes to the Everglades are threatening several different

14、kinds of wildlife. They say the hreats are a result of actions the United States government began more than fifty years ago. And settlers began even earlier.The National Park Service says early colonial settlers and land developers thought the Everglades had little value. The settlers had planed to

15、remove water from the area and in the 1880s developers began digging drain canals. At the time, they did not understand the complexity of the Everglades ecosystem. As a result, they were not prepared for all the work and caused environmental problems. The ecosystem, however, was able to survive.Even

16、 larger efforts to drain the wetlands continued between 1905 and 1910. Large areas were changed to farmland. This led to increased development, with more people moving to the Everglades and also more visitors.More changes came in 1948, when Congress approved the Central and South Florida Project. As

17、 part of the plan, the army corps of Engineers built roads, canals and water-control systems throughout South Florida. The aim of the project was to provide water and flood protection for developed areas and agriculture. Workers built a huge system of waterways and pumping stations to control the ov

18、erflow of Lake Okeechobee, north of the Everglades.Today, fifty percent of south Floridas early wetland areas no longer exist. Populations of wading birds have been reduced by ninety percent. Whole populations of animals are in danger of disappearing. The endangered creatures include the manatee, th

19、e Miami blackhead snake, the wood stork and the Florida panther.In recent years, environmental experts have learned about the damage to the Everglades. They say the natural balance of plants and animals has been destroyed.Recently, the Obama administration promised three hundred sixty million dollar

20、s to pay for Evergladess restoration this year. The administration is also asking that Congress approve an additional two hundred seventy-eight million dollars for next year.The money will help to support projects approved by the government nine years ago. The projects include improving wetlands in

21、the Picayune Strand in Southwest Florida and repairs to Lake Okeechobees dam. Until now, the state of Florida has spent the most money on the project.Another threat biologists have been battling for years in the Everglades if the areas population of Burmese pythons ( large snakes). Officials believe

22、 there are as many as one hundred fifty thousand of these large snakes in the Everglades. But the snakes are a foreign species, native to Southeast Asia. Owners of pythons left their unwanted snakes in the Everglades years ago.Biologists say adult pythons are able to eat small deer and bobcats. When

23、 pythons are found in the Everglades, they are often killed. Scientists are now experimenting with other ways to remove the snakes, including trapping methods and offering payments to hunters.The future of the Everglades is not clear. However, efforts to protect the area are continuing so that peopl

24、e from all over the world may continue visiting this biological treasure.（分数：70.00）(1).What is the largest national park in the United States?A. Everglades. B. Death Valley. C. Yellowstone. D. Grand Canyon.（分数：7.00）A.B.C.D.(2).Among the wildlife in the Everglades, there are most kinds of _A. birds B

25、. mammals C. reptiles D. fish（分数：7.00）A.B.C.D.(3).Visitors to the Everglades need to mind the sawgrass because _A. it grows only here B. it grows very fastC. it may cut them D. it is poisonous（分数：7.00）A.B.C.D.(4).Most people prefer to visit the Everglades in _A. spring B. summer C. autumn D. winter（

26、分数：7.00）A.B.C.D.(5).What happened during the Cuban missile crisis?A. Missiles were produced by the Cuban scientists.B. The United States was attacked by Cuban missiles.C. The United States began to build its first missile base.D. The Soviet Union placed missiles on the island of Cuba.（分数：7.00）A.B.C.

27、D.(6).The missile base in the Everglades now is _A. a nature reserve of birds B. a place of historical interestC. a luxurious resort hotel D. an information office（分数：7.00）A.B.C.D.(7).The ecosystem of the Everglades was first threatened by actions of _A. gold-seekers B. manufactures C. military forc

28、es D. colonial settlers（分数：7.00）A.B.C.D.(8).In order to provide water and flood protection for developed areas and agriculture, the congress approved_（分数：7.00）填空项 1:_(9).There are only ten percent of _ still existing in the Everglades.（分数：7.00）填空项 1:_(10).The Burmese pythons are a snake species that

29、 originated from_（分数：7.00）填空项 1:_三、Part Listening Com(总题数：0，分数：0.00)四、Section A(总题数：4，分数：105.00)(1).A. He should start to find a new apartment right now.B. He should buy an apartment right away.C. He should start to find a new apartment in a few weeks.D. He should buy an apartment near the campus.（分

30、数：7.00）A.B.C.D.(2).A. Hes surprised she chose that agency. B. He wonders why she is still keeping the job.C. He doesnt know when her classes started. D. He doubts if she makes much money now.（分数：7.00）A.B.C.D.(3).A. Writing an essay. B. Studying for a test.C. Shopping for shoes. D. Reading a magazine

31、.（分数：7.00）A.B.C.D.(4).A. Because she cant watch TV. B. Because her ears were hurt.C. Because she cant hear the words on the telephone. D. Because her eyes were hurt.（分数：7.00）A.B.C.D.(5).A. William is just starting the violin lessons. B. William cant play the violin.C. William is very modest about hi

32、s performance. D. William is very proud of his performance.（分数：7.00）A.B.C.D.(1).A. Children learn by example. B. Children must not tell lies.C. Children dont like discipline. D. Children must control their temper.（分数：7.00）A.B.C.D.(2).A. At the Computer Center. B. At home.C. At company. D. At the Oak

33、 Street.（分数：7.00）A.B.C.D.(3).A. He has refused another dinner appointment. B. He doesnt eat out very often.C. He Knows the way to the restaurant. D. He does not like to eat out either.（分数：7.00）A.B.C.D.Questions 19 to 22 are based on the conversation you have just heard.（分数：28.00）(1).A. How to arrang

34、e for a trip. B. How to book a satisfactory room.C. When the shop will be closed. D. What the weather is like.（分数：7.00）A.B.C.D.(2).A. Because there is an excellent bus service. B. Because there is an excellent railway service.C. Because there is an excellent subway system. D. Because taxi system the

35、re isnt convenient.（分数：7.00）A.B.C.D.(3).A. Usually warm but sometimes very cold and wet. B. Always warm.C. Usually cold and wet but sometimes warm. D. Always cold.（分数：7.00）A.B.C.D.(4).A. At once. B. Fifteen days later.C. By the 15th of this month. D. In the middle of this year.（分数：7.00）A.B.C.D.Quest

36、ions 23 to 25 are based on the conversation you have just heard.（分数：21.00）(1).A. He will return to his hometown. B. He will play tennis.C. He will join the woman for dinner. D. He will go to a coffee shop with the woman.（分数：7.00）A.B.C.D.(2).A. Because she doesnt drink coffee. B. Because she has a pl

37、ane to catch.C. Because she has to go to a lesson. D. Because she doesnt like the man.（分数：7.00）A.B.C.D.(3).A. He will postpone the trip. B. He will marry the woman.C. He will cook dinner for the woman. D. He will take tennis lessons.（分数：7.00）A.B.C.D.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）(1).A. To drink as much as possible each day. B. To drink as actually needed.C. To drink eight glasses of water daily. D. To drink no more than eight glasses daily.（分数：7.00）A.B.C.D.(2).A. To drink according to the exercises you have done.

39、B. To drink according to the need of your body.C. To drink according to the seasons.D. To drink according to the World Health Organizations recommendation.（分数：7.00）A.B.C.D.(3).A. Because the rule is out of date.B. Because the rule is made for sick people.C. Because the rule is based on the studies u

40、nder extraordinary conditions.D. Because the rule is based on the need of soldiers and patients.（分数：7.00）A.B.C.D.Passage TwoQuestions 29 to 31 are based on the passage you have just heard.（分数：21.00）(1).A. They share certain traditional customs. B. They share the traditional costumes.C. They share ce

41、rtain traditional foods. D. They share the traditional music.（分数：7.00）A.B.C.D.(2).A. They will exchange rings. B. They will exchange presents.C. They will exchange promises. D. They will exchange flowers.（分数：7.00）A.B.C.D.(3).A. To hold a reception party. B. To have a big dinner.C. To congratulate on

42、 the couple. D. To shower the couple with rice.（分数：7.00）A.B.C.D.Passage ThreeQuestions 32 to 35 are based on the passage you have just heard.（分数：28.00）(1).A. It resembles the biological virus.B. It works the same way as the human virus.C. It influences the human as the biological viruses do.D. It sp

43、reads to people who use the infected computers.（分数：7.00）A.B.C.D.(2).A. They invade the computer and make it a place for manufacturing.B. They spread throughout the whole system by quickly copying themselves.C. They infect the hard disc and the whole system.D. They spread viruses inside the computer

44、system.（分数：7.00）A.B.C.D.(3).A. It is a virus that causes great damage.B. It is a virus that once infected the IBMs computer system.C. It is a virus that carries a Christmas greeting.D. It is a virus that causes no harm to the computer systems.（分数：7.00）A.B.C.D.(4).A. It can cause no damages at all. B

45、. It can cause damages to the computer systems.C. It can copy your files in computers. D. It can format your hard drive.（分数：7.00）A.B.C.D.六、Section C(总题数：1，分数：77.00)All that we really need to plot out the future of our universe are a few good measurements. This does not mean that we can sit down toda

46、y and (36) the future course of the universe with anything like (37) . There are still too many things we do not know about the way the universe is put together. But we do know (38) what information we need to fill in our knowledge, and we have a pretty good (39) of how to go about getting it.Perhap

47、s the best way to think of our present situation is to (40) a train coming into a switchyard. All of the switches are set before the train arrives, so that its path is completely (41) Some switches we can see, others we cannot. There is no doubt if we can see the setting of a switch: we can say with

48、 confidence that some (42) futures will not be realized and others will. At the unseen (43) , however, there is no such certainty about it.(44) . The unseen switches are the true decision points in the future, and what happens when we arrive at them determines the entire subsequent course of events.

49、(45) , but after that there are decision points to be dealt with and possible fates to consider (46) （分数：77.00）(1).All that we really need to plot out the future of our universe are a few good measurements. This does not mean that we can sit down today and (36) the future course of the universe with anything like (37) . There are still too many things we do not know about the way the un