[外语类试卷]大学英语六级模拟试卷73（无答案）.doc

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1、大学英语六级模拟试卷 73（无答案）一、Part I Writing (30 minutes)1 For this part, you are allowed 30 minutes to write a short essay entitled Say No to Pirated Products. You should write at least 150 words following the outline given below.1. 目前盗版的现象比较严重2. 造成这种现象的原因及其危害3. 我们应该怎么做Useful words and expressions:盗 版: pirac

2、y(n.)盗版产品: pirated products知识产权: intellectual property rights侵犯版权: infringe sb.s copyright; copyright infringementSay No to Pirated Products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

3、 the questions attached to the passage. For questions 1-4, mark：Y (for YES) if the statement agrees with the information given in the passage;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.2 How Earthquak

4、es WorkAn earthquake is one of the most terrifying phenomena that nature can dish up. We generally think of the ground we stand on as “rock-solid“ and completely stable. But an earthquake can shatter that perception instantly. Up until relatively recently, scientists only had unsubstantiated guesses

5、 as to what actually caused earthquakes. Even today there is still a certain amount of mystery surrounding them, but scientists have a much clearer understanding. There has been enormous progress in the past century: Scientists have identified the forces that cause earthquakes, and developed technol

6、ogy that can tell us an earthquakes magnitude and origin. The next hurdle is to find a way of predicting earthquakes.Shaking GroundAn earthquake is a vibration that travels through the earths crust. Technically, a large truck that rumbles down the street is causing a mini-earthquake, if you feel you

7、r house shaking as it goes by, but we tend to think of earthquakes as events that affect a fairly large area, such as an entire city. All kinds of things can cause earthquakes:-volcanic eruptions-meteor(流星) impacts-underground explosions (an underground nuclear test, for example)-collapsing structur

8、es (such as a collapsing mine)But the majority of naturally-occurring earthquakes are caused by movements of the earths plates, as well see in the next section.We only hear about earthquakes in the news every once in a while, but they are actually an everyday occurrence on our planet. According to t

9、he United States Geological Survey, more than three million earthquakes occur every year. Thats about 8000 a day, or one every 11 seconds! The vast majority of these 3 million quakes are extremely weak.Sliding PlatesThe biggest scientific breakthrough in the history of seismology(地震学)the study of ea

10、rthquakes came in the middle of the 20th century, with the development of the theory of plate tectonics(板块构造). The basic theory is that the surface layer of the earththe lithosphereis comprised of many plates that slide over the lubricating mantle(地幔) layer. At the boundaries between these huge plat

11、es of soil and rock, three different things can happen:-Plates can move apartIf two plates are moving apart from each other, hot, molten rock flows up from the layers of mantle below the lithosphere.-Plates can push togetherIf the two plates are moving toward each other, one plate typically pushes u

12、nder the other one. At some boundaries where two plates meet, neither plate is in a position to subduct under the other, so they both push against each other to form mountains.-Plates slide against each otherAt other boundaries, plates simply slide by each otherthey are pushed tightly together. A gr

13、eat deal of tension builds at the boundary.Where these plates meet, youll find faultsbreaks in the earths crust where the blocks of rock on each side are moving in different directions. Earthquakes are much more common along fault lines than they are anywhere else on the planet.FaultsScientists iden

14、tify four types of faults, characterized by the position of the fault plane, the break in the rock and the movement of the two rock blocks:-In a normal fault (see animation below), the fault plane is nearly vertical. These faults occur where the crust is being pulled apart, due to the pull of a dive

15、rgent plate boundary.-The fault plane in a reverse fault is also nearly vertical, but the hanging wall pushes up and the footwall pushes down. This sort of fault forms where a plate is being compressed.-A thrust fault moves the same way as a reverse fault, but the fault line is nearly horizontal. Th

16、is is the sort of fault that occurs in a converging plate boundary.-In a strike-slip fault, the blocks of rock move in opposite horizontal directions. These faults form when the crust pieces are sliding against each other, as in a transform plate boundary.In all of these types of faults, the differe

17、nt blocks of rock push very tightly together, creating a good deal of friction as they move. If this friction level is high enough to keep the blocks from sliding against each other, the forces in the plates will continue to push the rock, increasing the pressure applied at the fault. If the pressur

18、e increases to a high enough level, then it will overcome the force of the friction, and the blocks will suddenly snap forward.Making WavesWhen a sudden break or shift occurs in the earths crust, the energy radiates out as seismic waves(地震波),just as the energy from a disturbance in a body of water r

19、adiates out in wave form. Body waves move through the inner part of the earth, while surface waves travel over the surface of the earth. Surface waves sometimes called long waves, or simply L wavesare responsible for most of the damage associated with earthquakes, because they cause the most intense

20、 vibrations.Surface waves are something like the waves in a body of waterthey move the surface of the earth up and down. This generally causes the worst damage because the wave motion rocks the foundations of manmade structures. L waves are the slowest moving of all waves, so the most intense shakin

21、g usually comes at the end of an earthquake.Rating Magnitude and IntensityWhenever a major earthquake is in the news, youll probably hear about its Richter Scale rating. You might also hear about its Mercalli Scale rating, though this isnt discussed as often. These two ratings describe the power of

22、the earthquake from two different perspectives.The Richter Scale is used to rate the magnitude of an earthquakethe amount of energy it released. The Richter Scale is logarithmic, meaning that whole-number jumps indicate a tenfold increase. That is, the wave amplitude(振幅) in a level 6 earthquake is 1

23、0 times greater than in a level 5 earthquake, and the amplitude increases 100 times between a level 7 earthquake and a level 9 earthquake.Richter ratings only give you a rough idea of the actual impact of an earthquake. As weve seen, an earthquakes destructive power varies depending on the compositi

24、on of the ground in an area and the design and placement of manmade structures. The extent of damage is rated on the Mercalli Scale.Richter Scale ratings are determined soon after an earthquake, once scientists can compare the data from different seismograph stations. Mercalli ratings, on the other

25、hand, cant be determined until investigators have had time to talk to many eyewitnesses to find out what occurred during the earthquake. Once they have a good idea of the range of damage, they use the Mercalli criteria to decide on an appropriate rating.Dealing with EarthquakesSo what can we do abou

26、t earthquakes? The major advances over the past 50 years have been in preparednessparticularly in the field of construction engineering. In 1973, the Uniform Building Code, an international set of standards for building construction, added specifications to fortify buildings against the force of sei

27、smic waves. This includes strengthening support material as well as designing buildings so they are flexible enough to absorb vibrations without falling or deteriorating.Another component of preparedness is educating the public. The United States Geological Survey(USGS) and other government agencies

28、 have produced several brochures explaining the processes involved in an earthquake and giving instructions on how to prepare your house for a possible earthquake, as well as what to do when a quake hits.In the future, improvements in prediction and preparedness should further minimize the loss of l

29、ife and property associated with earthquakes. But it will be a long time, if ever, before well be ready for every substantial earthquake that might occur. All we can do is to increase our understanding of the phenomenon and develop better ways to deal with it.2 Nowadays, scientists still have not ma

30、de huge progress on the research of earthquake because they have not fully understood what cause earthquakes.（A）Y（B） N（C） NG3 Nuclear power can be utilized as an electrical power, but it may become a source of earthquakes.（A）Y（B） N（C） NG4 Thousands of earthquakes take place every day, but most of th

31、em are very gentle.（A）Y（B） N（C） NG5 Ground sea is formed when two plates are sliding toward each other and are tightly pushing together.（A）Y（B） N（C） NG6 Scientists find that on our planet earthquakes are much more frequent where the plates _.7 If the pressure on the fault is higher than the force of

32、 friction between different blocks or rock, the blocks of rock will _.8 In earthquake, long wave is the main source of damage because it causes the shake of _.9 When an earthquake with level 7 in Richter scale rating is reported it means that its amplitude is _ times stronger than a level 6 earthqua

33、ke.10 After a thorough investigation of what happens during the earthquake, scientists use _ to rate the actual damage.11 In order to minimize the damages resulted from earthquakes in the future, further progress should be made in the field of _.Section ADirections: In this section, you will hear 8

34、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. After each question there will be a pause. During the pause, you must read the four choices marked

35、 A, B, C and D, and decide which is the best answer.（A）Shell get the things the man needs.（B） Mary wants to go to the bookstore too.（C） There isnt enough time to go to the bookstore.（D）The student center closes at 4 oclock.（A）His flight arrived late.（B） Shirley had a long drive to the airport.（C） Hi

36、s flight took three hours.（D）Shirley had trouble finding the airport.（A）It lacks the necessary background information.（B） The man should find the proper subject to research firstly.（C） It will be finished in a short time.（D）The man doesnt know how to carry it on.（A）The woman is nervous to go to tomo

37、rrows trial.（B） The man thinks the womans presentation very well.（C） The woman will have a class speaking tomorrow.（D）The man suggests the woman have a run to relieve of nervousness.（A）She is not permitted to live off-campus this year.（B） She has been living off-campus for a year.（C） She is happy wi

38、th her living arrangement.（D）She is required to move next year.（A）She has already read the book.（B） She will not lend her book to the man.（C） The man can use her book whenever he likes.（D）The man does not need the book.（A）Give the secretary Sallys new address and phone number.（B） Ask Sally a questio

39、n about her health.（C） Get information about Sally from the secretary.（D）Visit Sally at her new school.（A）She will help the man find the exhibit.（B） She has already seen the exhibit.（C） She will help the man read the map.（D）She knows where to get a map.（A）She hasnt been getting adequate grades.（B） S

40、he has been overloading herself with homework.（C） She hasnt been attending class on time.（D）She has been coming to school much too early.（A）To withdraw from class.（B） To stay in class.（C） To miss just one more class.（D）To get another class.（A）Change his class.（B） Prepare for class.（C） Drop the class

41、.（D）Dismiss class.（A）The growing crisis of inadequate retirement pensions for the future.（B） The problem of providing adequate medical care for the elderly.（C） An emotional problem facing the elderly and how to overcome it.（D）Helping the elder lead a life in retirement homes.（A）To highlight the diff

42、iculties of finding affordable housing in the future.（B） To illustrate a problem with older citizens.（C） To describe the lack of public facilities designed for the elderly.（D）To indicate the terrible living conditions of retirement homes.（A）They were happy.（B） They were calm.（C） They were satisfied.

43、（D）They were sad.（A）Provide some jobs that the elderly can do.（B） Improve the living conditions of retirement homes.（C） Increase retirement pension for the elderly.（D）Persuade them to live with their family.Section BDirections: In this section, you will hear 3 short passages. At the end of each pass

44、age, 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）It is more dangerous.（B） It is much easier to do.（C） It is hard to find a proper place for it.（D）It

45、 takes much shorter time to get pleasure.（A）Because people want to get away from modern life.（B） Because people have more free time.（C） Because people like adventures.（D）Because people are not quite pleased with modem life.（A）People are becoming crazy.（B） Some kinds of dangerous sports is not popula

46、r as before.（C） The reason why people nowadays take part in some dangerous sports.（D）Bungee jumping is different from other dangerous sports.（A）Because they wanted to record the animals they caught.（B） Because they wanted to make stories about, animal-hunting.（C） Because the painters wanted to show

47、imagination.（D）Because the pictures were thought to be helpful.（A）Writing.（B） Religious symbols.（C） Entertaining.（D）Curse.（A）South Africa.（B） Egypt.（C） Australia.（D）The East.（A）Because it is difficult to make choices.（B） Because it is necessary for us to live.（C） Because others make us to do so.（D）B

48、ecause making choice is better than having choices made for us.（A）We are always interested in making important choices.（B） Advice from others ultimately determines our choices.（C） Choices influenced by others advice usually make us suffer a lot.（D）It is us who have to make our own decision ultimatel

49、y.（A）Robert Ross.（B） John Frost.（C） Robert Frost.（D）Boris Pasternak.（A）In Frosts poem the poet describes walking on a meadow.（B） In the poem the poet plans to try another after taking one way.（C） The choice in the poem means the choice of his career.（D）The risk of being a poem is that writing poems is hard work.Section CDirections: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When