[外语类试卷]大学英语四级模拟试卷646（无答案）.doc

1、大学英语四级模拟试卷 646（无答案）一、Part I Writing (30 minutes)1 For this part, you are allowed 30 minutes to write a short essay entitled On College Students and Mobile Phone. You should write at least 120 words following the outline given below: 1大学生使用手机增多及其原因2大学生使用手机所带来的问题3你自己的观点On College Students and Mobile P

2、hone二、Part II Reading Comprehension (Skimming and Scanning) (15 minutes)Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark：Y (for YES) if the statement agrees with the information given in the pa

3、ssage;N (for NO) if the statement contradicts the information given in the passage;NG (for NOT GIVEN) if the information is not given in the passage.1 LandfillsYou have just finished your meal at a fast food restaurant and you throw your uneaten food, food wrappers, drink cups, utensils and napkins

4、into the trash can. You dont think about that waste again. On trash pickup day in your neighborhood, you push your can out to the curb, and workers dump the contents into a big truck and haul it away. You dont have to think about that waste again, either. But maybe you have wondered, as you watch th

5、e trash truck pull away, just where that garbage ends up.Americans generate trash at an astonishing rate of four pounds per day per person; which translates to 600,000 tons per day or 210 million tons per year! This is almost twice as much trash per person as most other major countries. What happens

6、 to this trash? Some gets recycled (回收利用) or recovered and some is burned, but the majority is buried in landfills.How Much Trash Is Generated?Of the 210 million tons of trash, or solid waste, generated in the United States annually, about 56 million tons, or 27 percent, is either recycled (glass, p

7、aper products, plastic, metals) or composted (做成堆肥) (yard waste). The remaining trash, which is mostly unredeemable, is discarded. How Is Trash Disposed Of?The trash production in the United States has almost tripled since 1960. This trash is handled in various ways. About 27 percent of the trash is

8、 recycled or composted, 16 percent is burned and 57 percent is buried in landfills. The amount of trash buried in landfills has doubled since 1960. The United States ranks somewhere in the middle of the major countries (United Kingdom, Canada, Germany, France and Japan) in landfill disposal. The Uni

9、ted Kingdom ranks highest, burying about 90 percent of its solid waste in landfills. There Are Two Ways to Bury Trash: Dumpan open hole in the ground where trash is buried and that is full of various animals (rats, mice, birds). (This is most peoples idea of a landfill!)Landfillcarefully designed st

10、ructure built into or on top of the ground in which trash is isolated from the surrounding environment (groundwater, air, rain). This isolation is accomplished with a bottom liner and daily covering of soil.Sanitary landfilllandfill that uses a clay liner to isolate the trash from the environment.Mu

11、nicipal solid waste (MSW) landfilllandfill that uses a synthetic (plastic) liner to isolate the trash from the environment.The purpose of a landfill is to bury the trash in such a way that it will be isolated from groundwater, will be kept dry and will not be in contact with air. Under these conditi

12、ons, trash will not decompose (腐烂) much. A landfill is not like a compost pile, where the purpose is to bury trash in such a way that it will decompose quickly. Proposing the LandfillFor a landfill to be built, the operators have to make sure that they follow certain steps. In most parts of the worl

13、d, there are regulations that govern where a landfill can be placed and how it can operate. The whole process begins with someone proposing the landfill. In the United States, taking care of trash and building landfills are local governments responsibilities. Before a city or other authority can bui

14、ld a landfill, an environmental impact study must be done on the proposed site to determine: the area of land necessary for the landfillthe composition of the underlying soil and bedrockthe flow of surface water over the sitethe impact of the proposed landfill on the local environment and wildlifeth

15、e historical value of the proposed site Building the LandfillOnce the environmental impact study is complete, the permits are granted and the funds have been raised, then construction begins. First, access roads to the landfill site must be built if they do not already exist. There roads will be use

16、d by construction equipment, sanitation (环卫) services and the general public. After roads have been built, digging can begin. In the North Wake Country Landfill, the landfill began 10 feet below the road surface. What Happens to Trash in a Landfill?Trash put in a landfill will stay there for a very

17、long time. Inside a landfill, there is little oxygen and little moisture. Under these conditions, trash does not break down very rapidly. In fact, when old landfills have been dug up or sampled, 40 years old newspapers have been found with easily readable print, Landfills are not designed to break d

18、own trash, merely to bury it. When a landfill closes, the site, especially the groundwater, must be monitored and maintained for up to 30 years! How Is a Landfill Operated?A landfill, such as the North Wake County Landfill, must be open and available every day. Customers are typically municipalities

19、 and construction companies, although residents may also use the landfill.Near the entrance of the landfill is a recycling centre where residents can drop off recyclable materials (aluminum cans, glass bottles, newspapers and paper products). This helps to reduce the amount of materials in the landf

20、ill. Some of these materials are banned from landfills by law because they can be recycled.As customers enter the site, their trucks are weighed at the scale house. Customers are charged tipping fees for using the site. The tipping fees vary from $ 10 to $ 40 per ton. These fees are used to pay for

21、operation costs. The North Wake County Landfill has an operating budget of approximately $ 4. 5 million, and part of that comes from tipping fees.Along the site, there are drop-off stations for materials that are not wanted or legally banned by the landfill. A multi-material drop-off station is used

22、 for tires, motor oil, and lead acid batteries. Some of these materials can be recycled.In addition, there is a household hazardous waste drop-off station for chemicals (paints, pesticides, other chemicals) that are banned from the landfill. These chemicals are disposed of by private companies. Some

23、 paints can be recycled and some organic chemicals can be burned in furnaces or power plants.Other structures alongside the landfill are the borrowed area that supplies the soil for the landfill, the runoff collection pond and methane (甲烷) station.Landfills are complicated structures that, when prop

24、erly designed and managed, serve an important purpose. In the future, new technologies called bioreactors will be used to speed the breakdown of trash in landfills and produce more methane.2 The passage gives a general description of the structure and use of a landfill.（A）Yes（B） No（C） Not Given3 Mos

25、t of the trash that Americans generate ends up in landfills.（A）Yes（B） No（C） Not Given4 Compared with other major industrialized countries, America buries a much higher percentage of its solid waste in landfills.（A）Yes（B） No（C） Not Given5 Landfills are like compost piles in that they speed up decompo

26、sition of the buried trash.（A）Yes（B） No（C） Not Given6 In most countries the selection of a landfill site is governed by rules and regulations.（A）Yes（B） No（C） Not Given7 In the United States the building of landfills is the job of both federal and local governments.（A）Yes（B） No（C） Not Given8 Hazardou

27、s wastes have to be treated before being dumped into landfills.（A）Yes（B） No（C） Not Given9 Customers are typically_, although residents may also use the landfill.10 The tipping fees vary from_per ton. These fees are used to pay for operation costs.11 Along the site, there are_for materials that are n

28、ot wanted or legally banned by the landfill.Section ADirections: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once.

29、After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.（A）Teacher and student.（B） Doctor and patient.（C） Manager and office worker.（D）Travel agent and customer.（A）He has been to Seattle many times.（B） He h

30、as chaired a lot of conferences.（C） He holds a high position in his company.（D）He lived in Seattle for many years.（A）Save time by using a computer.（B） Buy her own computer.（C） Borrow Marthas computer.（D）Stay home and complete her paper.（A）The man hates to lend his tools to other people.（B） The man h

31、asnt finished working on the bookshelf.（C） The tools have already been returned to the woman.（D）The tools the man borrowed from the woman are missing.（A）At the airport.（B） In a restaurant.（C） In a booking office.（D）At the hotel reception.（A）She used to be in poor health.（B） She was popular among boy

32、s.（C） She was somewhat overweight.（D）She didnt do well at high school.（A）He thinks she should visit her cousin.（B） Her cousin doesnt visit very often.（C） Her cousin is feeling a lot better today.（D）He doesnt think her cousin has been at home today.（A）He prefers staying at home because the bus is too

33、 late.（B） He prefers staying at home because he doesnt like to travel.（C） He prefers taking a bus because the plane makes him nervous.（D）He prefers traveling with the woman.（A）about 12: 00 AM（B） about 3: 00 AM（C） about 5: 00 AM（D）about 24: 00（A）a giant deer（B） a strange man（C） a hairy alien（D）a ther

34、apist（A）They should call the fire department.（B） The man should seek counseling.（C） The man should contact the newspaper.（D）They should drive toward where the UFO landed. （A）Pay the entrance fee.（B） Take off your shoes.（C） Put your clothes in a locker.（D）Show your ID card.（A）The entrance fee was exp

35、ensive.（B） People sit down when they bath.（C） The attendant could see him undressing.（D）People socialize with their neighbors.（A）A swimming suit.（B） Shorts.（C） Nothing.（D）Bathrobe.（A）Watch videos.（B） Drink something, like tea.（C） Play Japanese chess with friends.（D）Enjoy some delicious foods.Section

36、 BDirections: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.（A）The care and

37、proper selection of dogs as family pets.（B） Different breeds of dogs.（C） Responsibility for seeing that dogs are properly cared for.（D）Different kinds of books about dogs.（A）Children.（B） Family.（C） Parents.（D）ASPCA.（A）When you have small children.（B） When you live in an apartment.（C） When space is l

38、imited.（D）When you live in the city.（A）Three minutes.（B） Two minutes.（C） One minute.（D）Five minutes.（A）To win a competition.（B） To break a record.（C） To deliver the news of victory.（D）To win the first prize.（A）Because he is over the fellow runners.（B） Because he is over former runners.（C） Because he

39、 is over his own body.（D）Because he wins the prize.（A）It is harmful to the body only.（B） It is good to personal relationship.（C） It is harmful to the body and mind.（D）It is a good change after idling for a long time.（A）Personal relationships should come after ones job.（B） People should care more abo

40、ut their personal relationships and relaxation.（C） When a job is very important, relaxation should be forgotten.（D）Personal relationships can help people do their jobs well.（A）He should relax and have a chat with friends while working.（B） He should not relax until he finishes his work.（C） He should

41、play hard to fully relax himself.（D）He should shift some of his work to his colleagues.（A）Work and play are different activities.（B） Work and play should be combined together.（C） People should play more and work less.（D）People should work more and play less.Section CDirections: In this section, you

42、will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks numbered fr

43、om 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the 36 Imagine sending electronic mail to your friend in the U.S. or discussing your gardening problem with a【B1】_in Australia, or searching the con

44、tents of several university【B2】_without leaving home. All of this, and more, is possible when you get connected via the Internet.The Internet is one of the fastest evolving【B3】_in the history of computing. This【B4 】_ network links people, countries and communities together in【B5 】_ways. It is not su

45、rprising to see an Internet address on TV or a companys Internet address at the bottom of an【B6 】_ in a popular magazine. In the cyberspace world, you will find friends and【B7】_that share common interests. Together or on your【B8】_, you can explore the constantly changing features of the online world

46、.What exactly is the Internet? Simply put,【B9】_. What is a computer network? It occurs when two or more computers are connected to one another to share information.【B10】_. E-mail, certainly the most widely used service, allows everybody to exchange messages with millions of people around the world.【

47、 B11】_. You can download thousands of programs, graphics, sounds, and text files from the Internet. You can even create your own “pages“, a place where people can learn about you. In short, the Internet is a good portion of the world brought to us electronically.37 【B1 】38 【B2 】39 【B3 】40 【B4 】41 【B

48、5 】42 【B6 】43 【B7 】44 【B8 】45 【B9 】46 【B10 】47 【B11 】Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your c

49、hoices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item with a single line through the center. You may not use any of the words in the bank more than once.47 The mayor of County Club Hills helped arrest two men Wednesday night suspected in the random shooting a 15-year-old boy as he was leaving a basketball game at Hillcrest High School. County Club Hills Mayor Dwight Welch, who is also a【S1】_police off