大学英语四级考试模拟试题及答案解析

1、20XX年大学英语四级考试模拟试题及答案解析（完整版）partI Writing (30 minute)注意：此部分试题在答题卡1上。Directions:For this part ,you are allowed 30minute to write a short essay on the topic of students selecting theirfectures.You should write at least 120 words following the outline when bellow:1.有些大学允许学生自由选择某些课程的任课教师2.学生选择教师时所考虑的主要因素

2、3.学生自选任课教师的益处和可能产生的问题On Students Selecting Lecturers范文：On Students Choosing LecturersNowadays, some universities give students the right to choose who teaches some of their classes. This has led to some debate over whether students should be given this much power.There are several factors that stude

3、nts consider when choosing a lecturer, including the teaching style of the lecturer, the lecturers academic background, and the lecturers reputation among students. The ideal lecturer is one who has an interesting teaching style, a diverse academic background, and a good reputation among students.Th

4、ere are both positive and negative aspects to allowing students to choose their lecturers. Giving students the choice encourages them to take ownership for their classes, and also puts pressure on teachers to improve their teaching quality.However, the factors that students consider might not be the

5、 ones that lead to the highest quality of education. Schools might end up with lecturers who teach interesting classes without much content.Part II Reading comprehension (skimming and scanning ) (15 minute)Directions: In this part,you will have 15 minute to go over the passage quickly and answer the

6、 questions on Answer sheet1For questions 1-7,markY(for YES) if the statement agrees with the information given in the passage;N(for NO) if statement cintradicts the information given in the passage;NG(for NOT CIVEN) if the information is not given in the passage.for question 8-10 ,complete the sente

7、nced with the information given in the passage.HighwayA goverment study recommended a national highway systerm of33,920 miles,and congress passed the Federcal-Aid Highway Act of 1944,which called for strict,centrakky controlled desert criterra.The interstate highway system was finally launched in 19

8、56 and has been hailed as one of the greatest public works projects of the century .To bulid its 44,000-mile web of highways,bridge.and tunnels hundreds of unique engineering designs and solutions had to be worked out.Consider the many geographic ,features of the country:mountains,steep grades,wetla

9、nds,rivers,desorts and plains.Variables included the slope of the land,the ability of the pavement to support the load.Innovative, designs of roadways,tunnels,bridges,overpasses,and interchanges that could run through or bypass urban areas soon began to weave their way across the country ,forever al

10、tering the face of American .Long-span,segmented-concrete,cable-stayed bridges such as Hale Boggs in Louisiana and the Sunshine Skyway in Florida,and remarkable tunnels like Fort Mchenry in Maryland and Mr.bakerin Washington developed under the nations physical challenges,Traffic control systems and

11、 methods of construction developed uder the interstate program soon influenced highway construction around the world,ang were invaluable in improving the condition of urban streets and traffic patterns.Today .the interstate system links every major city in the U.S,and the U.S with Canada and Mexico,

12、Built with safety in mind the highways have wide lanes and shoulders,dividing medians,or barriers,long entry and exit lanes,ourves engineered for safe turns,and limited access,The death rate on highways is half that of all other U.S roads (0.86 deaths per 100 million passenger miles compared to 1.99

13、 deaths per 100 million on all other roads)By opening the North American continent,highways have enabled consumer goods and services to reach people in remote and rural areas of jobs,access to the growth options in terms of jobs access to cutural progreams health care ,and other benefits.Above all,t

14、he interstate system provides individuals with what they enerish most:personal freedom of mobility.The interstate system has been an essential element of the nations economic growth in terms of shipping and job creation:more than 75 percent of the nations freight deliveries arrive by truck.and most

15、products that arrive by rail or air use interstates for the last leg of the journey by vehiole.Not only has the highway system affected the American economy by providing shipping routes,it has led to the growth of spin-off industries like service stations ,motels,restaurants,and shopping centres.It

16、has allower the rwlocation of manufacturing plants and other industries from urban areas to rural.By the end of the century there was an immense network of paved roads ,residential streets,expressways,and freeways built to support millions of vehicles,The high way system was officially renamed for E

17、isenhower to honor his vison and leadership.The year construction began he said:Together,the united forces of our communication and transportation systems are dynamic elements in the very name we bear -United States.Without them ,we would be a mere alliance of many sepaeate parts.8.The greatest bene

18、fit brought about by the interstate system was_9.Trucks using the interstate highways deliver more than_10.The interterstate systerm was renamed afterEisenhower in recognition_参考答案：1.Y N NG 2. Y N NG 3.Y NO NG 5. Y N NG 6.Y N NG 7.Y N NG参考答案：08. personal freedom of mobility参考答案：09. 75 percent参考答案：10

19、. his vision and leadershipPart III Listening Comprehension(35 minutes)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

20、 will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A,B,CandD, and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.11. A Wait for the sale to start.B

21、Get further information about the sale.C Call the TV station to be sure if the ad is true.D Buy a new suit.12. A He doesnt think that John is ill.B He thinks that perhaps John is not in very good health.C He is aware that John is ill.D He doesnt think that John has a very good knowledge of physics.1

22、3. A Before six. B At six. C After six. D After seven.14. A It is bigger. B It has a prettier color.C It has a larger yard. D It is brighter.15. A Australian and American. B Guest and host.C Husband and wife. D Professor and student.16. A 130. B 1100. C 930. D 1000.17. A He prefers staying at home b

23、ecause the bus is too 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.18. A He thinks she should visit her cousin.B Her cousin doesnt visit very often.C Her cousin is feeling a lot

24、better today.D He doesnt think her cousin has been at home today.Questions 19 to 22 are based on the conversation you have just heard.19. A Two different types of bones in the human body.B How bones help the body move.C How bones continuously repair themselves.D The chemical composition of human bon

25、es.20. A They defend the bone against viruses.B They prevent oxygen from entering the bone.C They break down bone tissue.D They connect the bone to muscle tissue.21. A They have difficulty identifying these cells.B They arent sure how these cells work.C Theyve learned how to reproduce these cells.D

26、Theyve found similar cells in other species.22. A To learn how to prevent a bone disease.B To understand differences between bone tissue and other tissue.C To find out how specialized bone cells have evolved.D To create artificial bone tissue.Questions 23 to 25 are based on the conversation you have

27、 just heard.23. A A new fuel for buses.B The causes of air pollution.C A way to improve fuel efficiency in buses.D Careers in environmental engineering.24. A Her car is being repaired.B She wants to help reduce pollution.C Parking is difficult in the city.D The cost of fuel has increased.25. A A fue

28、l that burns cleanly.B An oil additive that helps cool engines.C A material from which filters are made.D An insulating material sprayed on engine parts.Section BDirections: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage an

29、d 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, Cand D.Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 26 to 28 are based on the passage you have ju

30、st heard.26.A From three to five months. B Three months.C Five months.D Four months.27.A Watch traffic. B Obey commands.C Cross streets safely.D Guard the door.28.A Three weeks. B Two weeks.C Four weeks. D Five weeks.Passage TwoQuestions 29 to 31 are based on the passage you have just heard.29.A Two

31、 to four times.B Four to six times.C Four to eight times.D Six to ten times.30.A Sleeping pills made people go into REM sleep quickly.B People had more dreams after they took sleeping pills.C People became angry easily because they didnt take sleeping pills.D Sleeping pills prevented people from goi

32、ng into REM sleep.31.A People dream so as to sleep better.B People dream in order not to go into REM sleep.C Because they may run into difficult problems in their dreams.D Because in their dreams they may find the answers to their problems.Passage ThreeQuestions 32 to 35 are based on the passage you

33、 have just heard.32. A A sales representative. B A store manager. C A committee chairperson.D A class president.33. A To determine who will graduate this year.B To discuss the seating arrangement.C To choose the chairperson of the ceremonies.D To begin planning the graduation ceremonies.34. A Their

34、names, phone numbers and job preference.B The names and addresses of their guests.C The names of the committee they worked on last year.D Their dormitory name, address and phone number.35. A In an hour.B Next week.C In one month. D Next year.Part III Listening ComprehensionSection A11.W I just saw a

35、n ad. on television that said mens suits were on sales today and tomorrow at Conrads Mens Wear.MGreat! Thats just what Ive been waiting for.QWhat will the man probably do?【解析】D男士说男士套装的特价销售正是他一直等待着的。所以从他的态度可判断，他要去买件男装。12.W:Is John really ill?M:Its hard to say. I doubt theres anything wrong with him p

36、hysically.Q: What does the man mean?【解析】A从男士的话“我怀疑约翰的身体没有任何问题”中可看出答案。13.M:Do you know if the book shop is still open?W:Yes, its open till six.Q:When do you think this conversation took place?【解析】A女士说书店现在还开着，一直开到六点呢，说明现在的时间是在六点之前。14.M:Of the two houses we saw today, which do you prefer?W:I think the

37、white one is prettier, but the brick one has a bigger yard, so I like it better.Q:Why does the woman like the brick house better than the white house?【解析】C女士明确指出 the brick one has a bigger yard, so I like it better。15. M:Honey, well have a guest from Australia, a friend of mine. Hell stay in Califor

38、nia for two weeks.W:Yes. Your friend Andy. He was your classmate at LondonUniversity, wasnt he?Q:What is the probable relationship between the two speakers?【解析】C男士称女士为 honey, 证明两人关系亲密，由此可判断两人关系为夫妻。16.M: When will the meeting begin?W:According to the schedule it should be at 9:30. It will last for an

39、 hour and a half.Q:When will the meeting be closed?【解析】B根据女士所说的话，根据时刻表会议930开始，持续一个半小时，那么即11：00结束。17. W:If I were you, I would take a plane instead of a bus. It will take you forever to go there.M:But flying makes me so nervous.Q: What does the man prefer to do?【解析】C 女士建议男士乘飞机，男士回答说飞行让他精神紧张，说明男士还是愿意乘

40、坐公共汽车。18. W:Ive been thinking about my cousin a lot today.M:Why not go over for a visit?Q:What does the man mean?【解析】A男士说的 Why not go over for a visit 即是在建议女士去看望她的堂兄。Now youll hear two long conversations.Conversation OneW:OK, last night you were supposed to read an article about human bones. Are the

41、re any comments about it?M:Well, to begin with, I was surprised to find out there was so much going on in bones. I always assumed they were pretty lifeless.W:Well, thats an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and r

42、epair.M:Right. Thats one of the things I found so fascinating about the article the way the bones repair themselves.W:OK. So can you tell us how the bones repair themselves?M:Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first gr

43、oup goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.

44、W:Very good. This is a very complex process. In fact, the scientists who study human bones dont completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason,

45、 the second group doesnt completely fill in the hole. And this can cause real problems. It can actually lead to a disease in which the bone becomes weak and is easily broken.M:OK, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make s

46、ure the second group of cells completely fills the hole in the bone tissue every time. Thatll prevent the disease from ever occurring.Questions 19 to 22 are based on the conversation you have just heard.19.What is the discussion mainly about?【解析】C对话一开始就谈论人类骨骼的问题，女士说 But the fact is bones are made of

47、 dynamic living tissue that requires continuous maintenance and repair. 后面的对话都是针对这个话题展开的讨论，可见整个对话讨论的话题是骨骼的自我修复能力。20.What is the function of the first group of specialized cells discussed in the talk?【解析】C男士解释了第一组细胞的作用，第一组细胞生成一种化学物质分解骨组织(This group of cells produces the chemical that actually breaks

48、down the bone tissue.)，由此可见答案是They break down bone tissue.21.What does the professor say about scientists who study the specialized cells in human bones?【解析】B女士说这种特殊细胞作用于人类骨骼的过程相当复杂，事实上，连研究人类骨骼的科学家都不能完全了解这个过程。从这一句中可以知道：In fact, the scientists who study human bones dont completely understand it yet.

49、所以答案即是这些科学家也不完全知道这些细胞如何工作。22.According to the student, which is one important purpose of studying specialized cells in human bones?【解析】A学习这些人类骨骼中的特殊细胞的重要目的是为了学习如何预防骨头疾病。从男士的这一句话中可看出：Thatll prevent the disease from ever occurring. 这样可以在疾病发生之前预防疾病，可见A符合题意。Conversation TwoM: Hi Diana, mind if I sit dow

50、n?W: Not at all, Jerry. How have you been?M:Good. But Im surprised to see you on the city bus. Your car in the shop?W:No. Ive just been thinking a lot about the environment lately. So I decided the air will be a lot cleaner if we all use public transportation when we could.M:Im sure you are right. T

51、he diesel bus isnt exactly pollution free.W:True. Theyll be running a lot cleaner soon. We were just talking about that in my environmental engineering class.M:What could the city do? Install pollution filters in all their buses?W:They could, but those filters make the engines work harder and really

52、 cut down on the fuel efficiency. Instead they found a way to make their engines more efficient.M: How?W:Well, there is a material thats a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine.M: An insulator?W:Yeah. What it does is reflect back the heat of burn

53、ing fuel. So the fuel will burn much hotter and burn up more completely.M:So a lot less unburned fuel comes out to pollute the air.W:And the bus will need less fuel. So with the saving on fuel cost, they say this will all pay for itself in just six months.M:Sounds like people should all go out and g

54、et some this stuff to spray their car engines.W:Well, its not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10,000 degrees and then, well, you get the idea. Its not something you or I w

55、ill be able to do ourselves.Questions 23 to 25 are based on the conversation you have just heard.23.What is the conversation mainly about?【解析】C女士说为了环保应该多乘坐公共交通设备，因此之后的话题便围绕如何节能保护环境的问题展开。这段对话主要讨论的是公共汽车的节能问题，讨论了如何让公共汽车燃料更有效的利用，因此C符合题意。24.Why did the woman decide to ride the city bus?【解析】B对话开头部分就交代了此题答

56、案，那位女士说她不开自己的车而乘坐公共汽车是为了降低环境污染。从她提到的So I decided the air will be a lot cleaner if we all use public transportation when we could 即可得知。25.What is the new material?【解析】D这种新的材料是在引擎部位喷洒的一种绝缘材料。从女士的话中there is a material thats a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine即可得出。这种材料的用途是将燃料燃烧的热量反射回去，从而达到提高效率的结果。Section BPassage OneA guide dog is a dog especially trained t