大学英语四级-模拟1及答案解析.doc

1、大学英语四级-模拟 1 及答案解析(总分：120.00，做题时间：120 分钟)一、Writing (30 minutes)(总题数：1，分数：15.00)1.For this part, you are allowed 30 minutes to write a message for one of your parents on the occasion of his/her birthday using no more than 120 words. Base your writing on the following outline: 1. 向父亲或母亲祝贺节日； 2. 从一件难忘的事

2、情记述父亲或或母亲的无私奉献； 3. 如何回报父亲或母亲。 （分数：15.00）_二、Reading Comprehensio(总题数：1，分数：10.00)Hurricane (飓风) Hurricane is a name given to violent storms that originate over the tropical (热带的) or subtropical waters of the Atlantic Ocean, Caribbean Sea, Gulf of Mexico, or North Pacific Ocean east of the Internationa

3、l Date Line. Such storms over the North Pacific west of the International Date Line are called typhoons (台风); those elsewhere are known as tropical cyclones (热带气旋), which is the general name for all such storms including hurricanes and typhoons. These storms can cause great damage to property and lo

4、ss of human life due to high winds, flooding, and large waves crashing against shorelines. The deadliest natural disaster in the United States history was caused by a hurricane that struck the coast of Texas in 1990. The costliest natural disaster in U.S. history stemmed from Hurricane Katrina in 20

5、05. How hurricanes form Oceans can become warm enough in the summer for hurricanes to develop, and the oceans also retain summer heat through the fall. As a result, the hurricane season in the Atlantic Basin, which comprises the Atlantic Ocean, Caribbean Sea, and the Gulf of Mexico, runs from June 1

6、 through November 30. At least 25 out-of-season storms, however, have occurred from 1887 through 2003, and 9 of these strengthened into hurricanes for at least a few hours. Hurricanes weaken and die out when cut off from warm, humid air as they move over cooler water or land but can remain dangerous

7、 as they weaken. Hurricanes and other tropical cyclones begin as disorganized clusters of showers and thunderstorms. When one of these clusters becomes organized with its winds making a complete circle around a center, it is called a tropical depression (热带低气压). When a depressions sustained winds re

8、ach 63 km/h or more, it becomes a tropical storm and is given a name. By definition, a tropical storm becomes a hurricane when winds reach 119 km/h or more. For a tropical depression to grow into a hurricane, winds from just above the surface of the ocean to more than 12,000 m in altitude must be bl

9、owing from roughly the same direction and at the same speed. Winds that blow in opposite directions create wind shears-different wind speeds or direction at upper and lower altitudes (海拔)that can prevent a storm from, growing. Characteristics of hurricanes A hurricane consists of bands of thundersto

10、rms that spiral (盘旋) toward the low-pressure center, or “eye“ of the storm. Winds also spiral in toward the center, speeding up as they approach the eye. Large thunderstorms create an “eye wall“ around the center where winds are the strongest. Winds in the eye itself are nearly calm, and the sky is

11、often clear. Air pressures in the eye at the surface range from around 982 hectopascals (百帕) in a weak hurricane to lower than 914 hectopascals in the strongest storms. In a large, strong storm, hurricane-force winds may be felt over an area with a diameter of more than 100 km. The diameter of the a

12、rea affected by gale winds and torrential rain can extend another 260 km or more outward from the eye of the storm. The diameter of the eye may be less than 16 km in a strong hurricane to more than 48 km in a weak storm. The smaller the diameter of the eye, the stronger the hurricane winds will be.

13、A hurricanes strength is rated from Category 1, which has winds of at least 119 km/h, to Category 5, which has winds of .more than 249 km/h. These categories, known as the Saffir-Simpson hurricane scale, were developed in the 1970s. In the tropics, hurricanes move generally east to west, steered by

14、global-scale winds. Hurricane, typhoons, and cyclones usually “recurve“ in the direction of either the South Pole in the Southern Hemisphere or the North Pole in the Northern Hemisphere. Eventually the storms move toward the east in the middle latitudes, but not all storms recurve. Hurricanes travel

15、 at varying rates. In the lower latitudes the rate usually ranges from 8 to 32 km/h, and in the higher latitudes it may increase to as much as 80 km/h. In addition to generating large weaves that travel out in all directions, hurricane winds pile up water. This piling up of water is known as a storm

16、 surge, and it can raise the sea level more than 6 m when the storm hits land. The deadliest natural disaster in U.S. history was the 1990 Galveston Texas hurricane, which killed an estimated 8,000 people. The storm surge accounted for most of the deaths. The costliest natural disaster in U.S. histo

17、ry was caused by the storm surge, created by Hurricane Katrina in 2005. The hurricanes storm surge burst levees protecting New Orleans, Louisiana, flooding the city and forcing a complete evacuation. The worst tropical storm disaster since the 20th century began was a 1970 cyclone that struck East P

18、akistan when a storm surge killed an estimated 300,000 people. Since the last third of the 20th century, floods and landslides from heavy rain were the leading cause of hurricane and tropical storm deaths. In October 1998 Hurricane Mitchs torrential rain caused floods and landslides that killed more

19、 than 9,000 people with another 9,000 missing and presumed dead in Central America, according to the U.S. National Hurricane Center. Although the hurricane death toll steadily declined in the United States during the 20th century and at the start of the 21st century, the costs of damage soared as co

20、astal populations grew and the value of property exceeded population, growth. Before Hurricane Katrina, the costliest U.S. natural disaster was Hurricane Andrew, which hit the Miami, Florida, metropolitan area in 1992, causing $26. 5 billion in damages, including both insured and uninsured losses. S

21、ome estimates of Hurricane Katrinas damages ran as high as $125 billion. In addition, federal relief efforts were expected to cost in the hundreds of billions. Hurricanes and global warming In recent years concerns have arisen that a general warming of the Earths climate could increase the numbers o

22、r strength of hurricanes and tropical cyclones. In a January 2001 report the United Nations Intergovernmental Panel on Climate Change said it had found no evidence that peak wind speeds or amounts of precipitation (降水量) in tropical cyclones had increased in the last half of the 20th century. Long-te

23、rm records do not provide enough information to conclude whether the global total of tropical cyclones increased during the 20th century. But detailed records of Atlantic, Caribbean, and Gulf of Mexico hurricanes show that the numbers of storms increase and decrease in cycles. Many hurricane researc

24、hers think the cycles are related to changes in Atlantic Ocean temperatures that last decades. From the late 19th century through the 1980s about one-third of the major hurricanes that formed in the Atlantic hit the United States, which means around ten such hurricanes could have been expected to hi

25、t from 1995 through 2003. Yet for reasons atmospheric scientists do not understand, only three such hurricanes hit the United States from 1995 through 2003. Researchers who study hurricanes and climate say that the computer models used to predict global climate changes do not look at weather in the

26、detail needed to forecast whether a warmer world would increase the number or strength of hurricanes. On the other hand, scientists have no reason to expect fewer or weaker hurricanes to form than has occurred in the past. They also have no reason to think that many storms will miss the United State

27、s as they did in the 1990s and early 2000s. This means that no matter how global climate change affects hurricanes, increased population along the coasts places more people and property in harms way. （分数：10.00）(1).There are generally more than half of the out-of-season storms which can develop into

28、hurricanes.（分数：1.00）A.YB.NC.NG(2).The winds are the strongest in the eye of a hurricane.（分数：1.00）A.YB.NC.NG(3).Hurricanes are mainly formed in Gulf of Mexico.（分数：1.00）A.YB.NC.NG(4).Some hurricanes, when formed will move in the same direction.（分数：1.00）A.YB.NC.NG(5).The deadliest hurricane in U.S. his

29、tory happened in Texas.（分数：1.00）A.YB.NC.NG(6).Hurricane Andrew was the second costliest natural disaster in the United States.（分数：1.00）A.YB.NC.NG(7).Despite the decline of the death toll in a hurricane, the costs of the damage are increasing greatly in the 20th century.（分数：1.00）A.YB.NC.NG(8).The wat

30、er piled up by the hurricane is called 1.（分数：1.00）填空项 1:_(9).It is 1that cause most of the deaths in a hurricane or tropical storm.（分数：1.00）填空项 1:_(10).From 1995 to 2003, the actual number of hurricanes that hit the United States is 1.（分数：1.00）填空项 1:_三、Listening Comprehens(总题数：1，分数：8.00)A.She eats w

31、ell when she reads.B.Time goes faster when she reads.C.She always has a lovely day she reads.D.She has more ability to manage life.A.Take a trip to the Great Lakes.B.Take a trip to a nearby place.C.Work hard to earn her tuition.D.Save money and take a trip next year.A.John can share the magazine wit

32、h her.B.She wants to borrow Johns card.C.Shell let John use the journal first.D.John should find another copy for himself.A.See if the walkman is working.B.Listen to the radio.C.Listen to some music.D.Fix it if her thinking is right.A.He wants her to pick up some stamps.B.He wants her to buy some st

33、aples.C.He wants her to buy a stapler.D.He wants her to buy some paper.A.She thinks he should wait a minute.B.She thinks its too late anyway.C.She thinks he should do things early.D.She thinks there might still be a chance even if it is last minute.A.To turn up the volume.B.To go and see a movie sin

34、ce he has two tickets.C.To go and see the final live since he has two tickets.D.To go and see the concert live since she has two tickets.A.Shed like to have the windows open.B.She likes to have the air conditioner on.C.The air is heavily polluted.D.The windows are already open.四、Section B(总题数：2，分数：8

35、.00)A.The womans husband.B.The owner of the apartment.C.The apartment manager.D.The tenant who occupies the apartment now.A.One.B.Two.C.Three.D.Four.A.Because she thought the apartment was too small.B.Because it was the first apartment she had seen.C.Because her husband had not seen it.D.Because the

36、 rent was too high.A.This evening.B.Tonight.C.Sometime next week.D.Tomorrow.A.A math teacher and his colleague.B.A teacher and his student.C.A student and his classmate.D.A librarian and a student.A.Tony could not continue the experiment.B.Tony finished the experiment last night.C.Tony thought the e

37、xperiment was well done.D.Tony had expected the experiment to be easier.A.She cant put up with the noise.B.She wants to save money to buy a piano.C.The present apartment is too expensive.D.She has found a job in a neighboring area.A.He is not very enthusiastic about his English lessons.B.He has made

38、 great progress in his English.C.He is a student of the music department.D.He is not very interested in English songs.A.At home.B.In a restaurant.C.In a ear.D.On the street.A.His injury kept him at home.B.He didnt think it necessary.C.He was too weak to see the doctor.D.He failed to make an appointm

39、ent.A.5:15.B.5:10.C.4:30.D.5:00.A.The man needs help.B.The man is complaining.C.The man likes his job.D.The man is talking with his boss.A.Wear a new dress.B.Make a silk dress.C.Attend a party.D.Go shopping.A.He played his part quite well.B.He was not dramatic enough.C.He performed better than the s

40、ecretary.D.He exaggerated his part.A.They are interested in other kinds of reading.B.They are active in voluntary services.C.They tend to be low in education and in income.D.They live in isolated areas.A.The reasons why people dont read newspapers are more complicated than assumed.B.There are more u

41、neducated people among the wealthy than originally expected.C.The number of newspaper readers is steadily increasing.D.There are more non-readers among young people nowadays.A.Lowering the prices of their newspapers.B.Shortening their news stories.C.Adding variety to their newspaper content.D.Includ

42、ing more advertisements in their newspapers.A.It limited their supply of food.B.It made their eggshells too fragile.C.It destroyed many of their nests.D.It killed many baby bald eagles.A.They found ways to speed up the reproduction of bald eagles.B.They developed new types of feed for baby bald eagl

43、es.C.They explored new ways to hatch baby bald eagles.D.They brought in bald eagles from Canada.A.Pollution of the environment.B.A new generation of pesticides.C.Over-killing by hunters.D.Destruction of the natural homes of bald eagles.A.In the 15th century.B.In the 6th century.C.In the 5th century.

44、D.In the 16th century.A.Because of its old style of architecture.B.Because it was the only modern building there.C.Because of the beautiful garden in front of it.D.Because it was at the seaside.A.To welcome the tourists.B.To make money.C.To keep the tourists away.D.To warn the tourists not to ruin t

45、he garden.A.In order to earn more money.B.In order to have more peace.C.In order to welcome more visitors.D.In order to have a bigger garden.六、Section C(总题数：1，分数：10.00)The potential of closed circuit television and other new (36) 1teaching tools is so great that it is (37) 2to visualize “the school

46、of tomorrow.“ Televised lessons will (38) 3from a central building having perhaps four or five master (39) 4. The lessons will be carried into classrooms all over a city, or even an (40) 5country. After a televised lesson has been given, the classroom teacher will take over for the all important “fo

47、llow up“ period. The students will ask any (41) 6questions, and difficult points will be cleared up through discussion. The teacher in the classroom will have (42) 7teaching tools. On the teachers desk, the traditional bright red apple will have been (43) 8by a multiple control panel and magnetic ta

48、pe players. (44) 9. The lessons will be specifically changed to the students levels of ability. For instance, while the class as a whole studies history, (45) 10. In the “school of tomorrow,“ (46) 11. In this way, the teacher will be able to conduct three classes at the same time. （分数：10.00）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、Reading Comprehensio(总题数：2，分数：20.00)In the 1960s, medical researchers Thomas Holmes and Richard Rahe developed a checklist of stressful events. They appreciated the tr