[語言類考試復習資料大全]公共英語四級(筆試)分類模擬題49

1、書山有路勤為徑，學海無涯苦作舟。祝愿天下莘莘學子：學業(yè)有成，金榜題名！語言類考試復習資料大全公共英語四級(筆試)分類模擬題49公共英語四級(筆試)分類模擬題49Section ListeningPart AFor Questions 1-5, you will hear a passage about Computer Security. While you listen, fill out the table with the information you have heard. Some of the information has been given to you in the ta

2、ble. Write only 1 word in each numbered box.Information about Computer Security There is an immediate need for computer 1 One way to prevent theft and inappropriate use is to assign access 2 Computers should also be protected against natural disasters such as power surges, fires and 3 It is importan

3、t to make backup disks and store them in different 4 Security will continue to be a problem because computer users continue to 5 (如需獲取本MP3聽力錄音請搜索標題名) 1.答案: security.聽力原文 Clearly, there is an urgent need for computer security. Computer owners must take steps to prevent theft and inappropriate use of

4、their equipment. One way is to assign access codes that are read by the computer from passwords. The user does not have to remember this number, so the number can be complex. Even if the word is stolen, the word can be changed when the theft is reported. Another security problem concerns the protect

5、ion of the operating system and data on the computer. It is essential that security measures protect all operating systems since unscrupulous individuals have found ways to prevent the system to print out a list of users passwords. Thus, they have access to computers and spread viruses. For this, al

6、l sensitive data should be stored and locked up when not in use. Computers should also be protected against natural disasters such as power surges, fires and earthquakes. At the fundamental level, a good surge protector will rule out most power surges. However, disks do wear out and fire destroys, s

7、o it is important to make backup disks and store them in a different location. Still, whatever means is taken, security will continue to be a problem because the number of computers and users continue to grow. 2.答案: codes.3.答案: earthquakes.4.答案: location.5.答案: grow.Part BFor Questions 6-10, you will

8、 hear a passage about Video Games in the United States. While you listen, complete the sentences and answer the questions. Use not more than 3 words for each answer.Video games are the most popular toys in 1 The games are only moderately popular with 2 The control box contains 3 A player can direct

9、the movements of some of the objects on the screen by moving a stick or 4 Children who play video games well must be quick with their hands and 5 (如需獲取本MP3聽力錄音請搜索標題名) 1.答案: the United States.聽力原文 The sound of video games can be heard in private homes and public game centers all across America. Video

10、 games are the most popular toys in the United States. The games are only moderately popular with girls. But they are hugely popular with boys. In fact, it seems as if every American boy between the ages of 8 and 15 likes to play and discuss without end video games. Home video games are played on a

11、television receiver connected to a control box. The control box contains a simple computer. Different computer programs contain the electronic information for different games. When you put a program into the control box, a picture of the game appears on the television screen. Like a television pictu

12、re, the games picture is made of many tiny points of light. The light may be in the shape of missiles, enemy spaceships or strange creatures. These objects move extremely rapidly across the dark glass. As they do, electronic music comes from the television speaker. By moving a stick or pushing a but

13、ton on the control box, a player can direct the movements of some of the objects on the screen. The computer directs the movements of other objects. To win, you must defeat the computerbefore it defeats you. Many of the most popular home video games reproduce the action in sports. There are electron

14、ic versions of football, boxing and karate, for example. Some games are automobile races. You must drive your little car very fast, but keep it on the road. Some games are fights between airplanes. You must keep your plane in the air, and shoot down the enemy planes. Other games let you be the hero

15、in exciting and dangerous searches, battles and rescues. As a hero, you must defeat a number of terrifying enemies who use increasingly deadly weapons. But your weapons and strength also increase. Children who play video games well must be quick with their hands and sharp-sighted. They also must rem

16、ember where objects in the games are hidden, in order to win. As we said earlier, most American boys will talk endlessly about video games, but not while they are playing. They seem too busy to talk much. 2.答案: girls.3.答案: a simple computer.4.答案: pushing a button.5.答案: sharp-sighted.Part CYou will h

17、ear one passage and one monologue. Before listening to each one, read the questions related to it. While listening, answer each question by choosing A, B, C or D. You will hear each piece only once. (如需獲取本MP3聽力錄音請搜索標題名) 1. Before being used for commerce, what was the Internet mainly used for?A.Educa

18、tion.B.Transportation.C.Management.D.The army and research work in universities.答案:D聽力原文 The Internet, as a means for commerce, did not become reality until the 1990s. Before this time, it was mainly a tool for the army, and a research device for some American universities. Its popularity grew when

19、it proved to become a fast and efficient means to conduct long distance transactions, as well as an effective way to distribute information. The number one advantage that e-commerce has is its speed. With increased speeds of communication, the delivery time is greatly decreased and that makes the wh

20、ole transaction more efficient. Also, you can find practically any product available for sale on the Internet. Even more significant is the fact that information appearing on the Internet can be changed extremely rapidly. This enables business owners to inform customers of any changes to the service

21、 that you are offering. The second advantage of the electronic commerce is the opportunity it offers to save ones costs. By using the Internet, marketing, distribution, personnel, phone, postage and printing costs, among others, can be reduced. You can start doing business for as little as $100. The

22、 savings, therefore, are tremendous. There is no national boundaries in cyberspace. That means you can do business all over the world as easily as you can in your own neighbourhood. Since the Internet connects everyone in cyberspace, information is transmitted at the speed of sound or the speed of l

23、ight, depending on your connection. Either way, distance becomes meaningless, which makes you able to link to anyone on the globe and anyone the globe can link to you. The ability to provide links makes doing business on the Internet attractive to customers in any part of the world. Its true that a

24、potential source of trouble is customer concerns with privacy and security, however, e-commerce is still safer than using credit cards. 2. What is the number one advantage of the Internet, as a means for commerce?A.Its speed.B.There is no national boundaries.C.It can help marketing.D.It can reduce c

25、osts.答案:A3. Which of the following is NOT the factor that can make the trade more efficient on the Internet?A.Speedy communication.B.Customers.C.Timely updated information.D.Availability of products for sale on the Internet.答案:B4. What do consumers worry about in e-commerce?A.Quality of products.B.P

26、rices of products.C.Speed of transaction.D.Privacy and security.答案:D5. What is the passage mainly about?A.The development of e-commerce.B.The function of e-commerce.C.The advantages of e-commerce.D.The disadvantages of e-commerce.答案:C (如需獲取本MP3聽力錄音請搜索標題名) 6. According to the speaker, six percent of

27、Americans surveyed recently are _ the Internet.A.good atB.familiar withC.strongly interested inD.annoyed at答案:C聽力原文 Six percent of Americans surveyed recently are addicted to the Internet. I think such addiction threatens the stability of both their work and home lives. My report found that six perc

28、ent of the 18,000 people surveyed were addicted to browsing the Internet. If the result is to take in the US population as a whole, such findings could mean that millions of Americans have found a new drug. Personally I think Internet addicts suffer symptoms similar to addicts on drugs or other acti

29、vities. They said they almost always found they lost track of time. Another 83 percent of those surveyed had a preoccupation with going on-line and 58 percent of them wanted to spend more time on-line. Interestingly, as other addictions, addicts eventually realize that they need to either cut back o

30、r quit even if withdrawal will be difficult. My research found that 68 percent of Internet browsers have tried in vain to reduce the amount of time they waste on-line. I designed a questionnaire to question people about their Internet use. A majority of addicts, exactly 57 percent, go on-line to cha

31、t, and 20 percent of the online users go shopping or trade stocks. If you get up in the middle of night to check your mail, you are an Internet addict. If he was fired for spending an average of seven hours a day at work on the Internet, he is also one addict. 7. According to the talk, Internet user

32、s go on-line to do all the following except _.A.chattingB.going shoppingC.trading stocksD.buying drugs答案:D8. What is the percentage of the people chatting on-line?A.75.B.20.C.6.D.57.答案:D9. According to the speaker, which of the following is NOT true?A.The addicts finally realize that they need to wi

33、thdraw.B.The addicts feel all right.C.The addicts have tried to reduce the amount of time they waste on-line.D.Its difficult for the addicts to quit going on-line.答案:B10. How does the speaker think of the addiction?A.It weakens the stability of addicts work and home life.B.There is nothing wrong wit

34、h the addiction.C.Its good for addicts health.D.The speakers attitude is not mentioned.答案:ASection ReadingPart ARead the following text. Answer the questions below the text by choosing A, B, C or D. The Computer As a Mind Tool In Megatrends, his popular book on the direction of western society, John

35、 Naisbitt discusses the many trends that currently affect our lives. One important concept that he presents is the information societythat is, a society in which the majority of the workers are involved in the transmittal, or sending of information. Naisbitt notes that we have undergone a transition

36、 from an agrarian society to an industrial society to the current information society. The tools for such a society have existed for some time. These tools include the adding machine, the typewriter, the file cabinet, the television, and the telephone. The adding machine helps us work with numbers,

37、the typewriter facilitates our work with characters, the file cabinet stores information in an easily retrievable fashion, the television portrays our ideas in pictures, and the telephone allows us to communicate with others instantaneously. However, the key element in the transition from an industr

38、ial society to an information society is a wonder called computer. The agrarian society depended on the metal plow and wheel, and the industrial society on the steam engine. The information society depends on the computer. Because the computer facilitates the work of the mind rather than manual labo

39、r, we refer to it as a mind toolthat is, a tool that extends, but does not replace, the human mind. The key idea behind the computer as a mind tool is that it performs all of the operations performed by the adding machine, typewriter, file cabinet, television, and telephone. On a computer, we can ma

40、nipulate numbers as we do on a calculator (add, subtract, divide, multiply, and so on), we can manipulate letters of the alphabet as we do on a typewriter, and we can have the computer draw pictures based on these manipulations. Any of these symbols may be stored within the computer. Finally, we can

41、 communicate with other computer users over a telephone line. If a computer can do all of these things, just exactly how would it be described? Briefly, a computer is a machine that stores and manipulates symbols based on a series of user instructions called a program. This ability to execute a list

42、 of instructions differentiates the computer from a calculator and other office machines. In addition to the computers ability to perform all these tasks, two important characteristics of the computer make it the catalyst that generated the information society. These characteristics are speed and ac

43、curacy. The speed of a computers operations is measured in nanosecondsbillionths of a secondand the computer does exactly what it is instructed to do. These two characteristics can also lead to problems when the computer is given the wrong instructions. In this case, the computer quickly performs in

44、correct operations. 1. What does the word facilitate probably mean (in the 2nd paragraph)?A.Make something easier.B.Provide facilities.C.Make something obvious.D.Make something more difficult.答案:A2. In what way is the computer different from other office machines?A.It can manipulate numbers.B.It can

45、 draw pictures.C.It can help communicate with other computer users.D.It can execute a list of instructions.答案:D3. What makes the computer the catalyst?A.Its speed.B.Its size.C.Its accuracy.D.Both A and C.答案:D4. What will happen when computer users input wrong instructions?A.The computer will correct

46、 them immediately.B.The computer will perform incorrect operations.C.The computer will ignore them.D.None of the above.答案:B5. Which of the following is true?A.Tools such as the adding machine, the typewriter, etc., are not as important as the computer.B.The agrarian society depended on the steam eng

47、ine.C.The computer can only do what it is instructed to do.D.The computer will replace the human mind one day.答案:CPart BIn the following text, some sentences have been removed. For Questions 1-5, choose the most suitable one from the list A-G to fit into each of the numbered blanks. There are two ex

48、tra choices, which do not fit in any of the gaps.Canadas premiers (the leaders of provincial governments), if they have any breath left after complaining about Ottawa at their late July annual meeting, might spare a moment to do something, together, to reduce health-care costs. Theyre all groaning a

49、bout soaring health budgets, the fastest-growing components of which are pharmaceutical costs. 1 What to do? Both the Romanow commission and the Kirby committee on health care-to say nothing of reports from other expertsrecommended the creation of a national drug agency. Instead of each province hav

50、ing its own list of approved drugs, bureaucracy, procedures and limited bargaining power, all would pool resources, work with Ottawa, and create a national institution. 2 . But national doesnt have to mean that. National could mean interprovincial-provinces combining efforts to create one body. Eith

51、er way, one benefit of a national organization would be to negotiate better prices, if possible, with drug manufacturers. Instead of having one provinceor a series of hospitals within a provincenegotiate a price for a given drug on the provincial list, the national agency would negotiate on behalf o

52、f all provinces. Rather than, say, Quebec, negotiating on behalf of seven million people, the national agency would negotiate on behalf of 31 million people. Basic economics suggests the greater the potential consumers, the higher the likelihood of a better price. 3 . A small step has been taken in

53、the direction of a national agency with the creation of the Canadian Coordinating office for Health Technology Assessment, funded by Ottawa and the provinces. Under it, a Common Drug Review recommends to provincial lists which new drugs should be included. Predictably, and regrettably, Quebec refuse

54、d to join. A few premiers are suspicious of any federal-provincial deal-making. They (particularly Quebec and Alberta) just want Ottawa to fork over additional billions with few, if any, strings attached. Thats one reason why the idea of a national list hasnt gone anywhere, while drug costs keep ris

55、ing fast. 4 . Premiers love to quote Mr. Romanows report selectively, especially the parts about more federal money. Perhaps they should read what he had to say about drugs. A national drug agency would provide governments more influence on pharmaceutical companies in order to try to constrain the e

56、ver-increasing cost of drugs. 5 . So when the premiers gather in Niagara Falls to assemble their usual complaint list, they should also get cracking about something in their jurisdiction that would help their budgets and patients. A. Quebecs resistance to a national agency is provincialist ideology. One of the first advocates for a national list was