【考研类试卷】考研英语179及答案解析.doc

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1、考研英语 179 及答案解析(总分：36.00，做题时间：180 分钟)一、Section Use of (总题数：1，分数：1.00)Many theies ccerning the causes of juvenile delinquency (crimes committed by young people) focus either the individual society as the maj ctributing influence. Theies -|_|- the individual suggest that children engage in criminal beh

2、avi -|_|-they were not sufficiently penalized f previous misdeeds that they have learned criminal behavi through -|_|-with others. Theies focusing the role of society suggest that children commit crimes in -|_|- to their failure to rise above their socioecomic status, -|_|- as a rejecti of middle-cl

3、ass values. Most theies of juvenile delinquency have focused children from disadvantaged families, -|_|- the fact that children from wealthy homes also commit crimes. The latter may commit crimes -|_|- lack of adequate parental ctrol. All theies, however, are tentative and are -|_|- to criticism. Ch

4、anges in the social structure may indirecfiy -|_|- juvenile crime rates. F example, changes in the ecomy that -|_|- to fewer job opptunities f youth and rising unemployment -|_|- make gainful employment increasingly difficult to obtain. The resulting disctent may in -|_|- lead me youths into crimina

5、l behavi. Families have also -|_|- changes these years. Me families csist of e-parent households two wking parents; -|_|- , children are likely to have less supervisi at home -|_|- was comm in the traditial family -|_|- This lack of parental supervisi is thought to be an influence juvenile crime rat

6、es. Other -|_|- causes of offensive acts include frustrati failure in school, the increased -|_|- of drugs and alcohol, and the growing -|_|- of child abuse and child neglect. All these cditis tend to increase the probability of a child committing a criminal act, -|_|- a direct causal relatiship has

7、 not yet been established. （分数：1.00）二、Section Writing(总题数：1，分数：1.00)2. (1) effect of the countrys growing human population on its wildlife (2) possible reason for the effect (3) your suggestion for wildlife protection (1) effect of the countrys growing human population on its wildlife (2) possible r

8、eason for the effect (3) your suggestion for wildlife protection* （分数：1.00）_三、Section Reading(总题数：4，分数：4.00)A “radiative forcing“ is any change imposed on the Earth that affect the planetary energy balance. Radiative forcings include changes in greenhouse gases (such as carbon dioxide and ozone), ae

9、rosols in the atmosphere, solar irradiance, and surface reflectivity. A forcing may result from either a natural or an anthropogenic cause, or from both, as in the case of atmospheric aerosol concentrations, which can be altered either by volcanic action or the burning of fossil fuels. Radiative for

10、cings are typically specified for the purpose of theoretical global climate simulations. In contrast, radiative “feedbacks“ are environmental changes resulting from climate changes and are calculated from scientific observation. Radiative feedbacks include changes in such phenomena as clouds, atmosp

11、heric water vapor, sea-ice cover, and snow cover. The interplay between forcings and feedbacks can be quite complex. For example, an increase in the concentration of atmospheric water vapor increases solar irradiance, thereby warming the atmosphere and, in turn, increasing evaporation and the concen

12、tration of atmospheric water vapor. A related example of this complex interplay also shows the uncertainty of future climatic changes associated with forcings and feedbacks. Scientists are unsure how the reduction of ozone will ultimately affect clouds and, in turn, the Earth temperature. Clouds tra

13、p outgoing, cooling radiation, thereby providing a warming influence. However, they also reflect incoming solar radiation and thus provide a cooling influence. Currents measurements indicate that the net effect of clouds is to cool the Earth. However, scientists do not know how the balance might shi

14、ft in the future as cloud formation and dispersion are affected by ozone reduction. Contributing to this uncertainty is the complexity of the mechanisms at work in the process of ozone reduction. The amount of radiation reaching the earths surface and the amount of reradiated radiation that is trapp

15、ed by the greenhouse effect influence the Earths temperature in opposite directions. Both mechanisms are affected by the vertical distribution of ozone. Also, the relative importance of these two competing mechanisms depends on the altitude at which ozone changes occur. In a recent NASA-sponsored ai

16、rcraft study of the Antarctic ozone hole, chlorine monoxide was measured at varying altitudes. The measurements suggest that chlorine plays a greater role, and oxides of nitrogen a lesser role, than previously thought in the destruction of ozone in the lower atmosphere. The study concluded that simu

17、ltaneous high-resolution measurements at many different altitudes (on the scale of 0.1 kilometer in vertical extent) are necessary to diagnose the operative mechanisms. These findings have called into question conventional explanations for ozone reduction, which fail to adequately account for the ne

18、w evidence. (NASA=National Aeronautics and Space Administration 国家航空航天局) （分数：1.00）(1). We learn from the text that the burning of petrol（分数：0.20）A.forms one of anthropogenic causes of radiative forcings.B.results in both radiative forcings and radiative feedbacks.C.can hardly affect atmospheric forc

19、ings and feedbacks.D.makes up a significant type of radiative forcing.(2).According to the text ,decreased evaporation is most likely to bring about（分数：0.20）A.a growth in water vapor concentration.B.a drop in atmospheric absorption of solar radiation.C.a decrease in other radiative forcings or feedb

20、acks.D.an increase in atmospheric cooling effect.(3).The NASA-sponsored study of the ozone hole（分数：0.20）A.failed to demonstrate of the variablity of ozone amounts at varying heights.B.did not raise doubts about current means of measuring ozone reduction.C.neglected to underline the complexity in mea

21、suring radiative changes.D.overlooked the distinction between early theories and recent evidence.(4). The example of ozone reduction is used to show the（分数：0.20）A.complex operations of feedbacks and forcingsB.distinction between radiative feedbacks and forcings.C.difficulty in balancing forcing-feed

22、back interactions.D.impact of cloud formation on global climate.(5).Scientists could more accurately predict the extent and direction of greenhouse effect if they were to（分数：0.20）A.monitor radiative feedbacks over a longer period.B.focus their research on determining reradiative changes.C.identify t

23、he types of the workings of ozone changes.D.calculate the precise altitude where ozone formations occur.Could the bad old days of economic decline be about to return Since OPEC agreed to supply-cuts in March, the price of crude oil has jumped to almost $ 26 a barrel, up from less than $10 last Decem

24、ber. This near-tripling of oil prices calls up scary memories of the 1973 oil shock, when prices quadrupled, and 197980, when they also almost tripled. Both previous shocks resulted in double- digit inflation and global economic decline. So where are the headlines warning of gloom and doom this time

25、? The oil price was given another push up this week when Iraq suspended oil exports. Strengthening economic growth, at the same time as winter grips the northern hemisphere, could push the price higher still in the short term. Yet there are good reasons to expect the economic consequences now to be

26、less severe than in the 1970s. In most countries the cost of crude oil now accounts for a smaller share of the price of petrol than it did in the 1970s. In Europe, taxes account for up to four-fifths of the retail price, so even quite big changes in the price of crude have a more muted effect on pum

27、p prices than in the past. Rich economies are also less dependent on oil than they were, and so less sensitive to swings in the oil price. Energy conservation, a shift to other fuels and a decline in the importance of heavy, energy-intensive industries have reduced oil consumption. Software, consult

28、ancy and mobile telephones use far less oil than steel or car production. For each dollar of GDP ( in constant prices) rich economies now use nearly 50% less oil than in 1973. The OECD estimates in its latest Economic Outlook that, if oil prices averaged $ 22 a barrel for a full year, compared with

29、$13 in 1998, this would increase the oil import bill in rich economies by only 0.25 - 0.5% of GDP. That is less than one-quarter of the income loss in 1974 or 1980. On the other hand, oil-importing emerging economies-to which heavy industry has shifted-have become more energy-intensive, and so could

30、 be more seriously squeezed. One more reason not to lose sleep over the rise in oil prices is that, unlike the rises in the 1970s, it has not occurred against the background of general commodity-price inflation and global excess demand. A sizable portion of the world is only just emerging from econo

31、mic decline. The Economists commodity price index is broadly unchanging from a year ago. In 1973 commodity prices jumped by 70%, and in 1979 by almost 30%. （分数：1.00）(1). Could the bad old days of economic decline be about to return Since OPEC agreed to supply-cuts in March, the price of crude oil ha

32、s jumped to almost $ 26 a barrel, up from less than $10 last December. This near-tripling of oil prices calls up scary memories of the 1973 oil shock, when prices quadrupled, and 197980, when they also almost tripled. Both previous shocks resulted in double- digit inflation and global economic decli

33、ne. So where are the headlines warning of gloom and doom this time? The oil price was given another push up this week when Iraq suspended oil exports. Strengthening economic growth, at the same time as winter grips the northern hemisphere, could push the price higher still in the short term. Yet the

34、re are good reasons to expect the economic consequences now to be less severe than in the 1970s. In most countries the cost of crude oil now accounts for a smaller share of the price of petrol than it did in the 1970s. In Europe, taxes account for up to four-fifths of the retail price, so even quite

35、 big changes in the price of crude have a more muted effect on pump prices than in the past. Rich economies are also less dependent on oil than they were, and so less sensitive to swings in the oil price. Energy conservation, a shift to other fuels and a decline in the importance of heavy, energy-in

36、tensive industries have reduced oil consumption. Software, consultancy and mobile telephones use far less oil than steel or car production. For each dollar of GDP ( in constant prices) rich economies now use nearly 50% less oil than in 1973. The OECD estimates in its latest Economic Outlook that, if

37、 oil prices averaged $ 22 a barrel for a full year, compared with $13 in 1998, this would increase the oil import bill in rich economies by only 0.25 - 0.5% of GDP. That is less than one-quarter of the income loss in 1974 or 1980. On the other hand, oil-importing emerging economies-to which heavy in

38、dustry has shifted-have become more energy-intensive, and so could be more seriously squeezed. One more reason not to lose sleep over the rise in oil prices is that, unlike the rises in the 1970s, it has not occurred against the background of general commodity-price inflation and global excess deman

39、d. A sizable portion of the world is only just emerging from economic decline. The Economists commodity price index is broadly unchanging from a year ago. In 1973 commodity prices jumped by 70%, and in 1979 by almost 30%. （分数：0.20）_Tight-lipped elders used to say,“ Its not what you want in this worl

40、d, but what you get.“ Psychology teaches that you do get what you want if you know what you want and want the right things. You can make a mental blueprint of a desire as you would make a blueprint of a house, and each of us is continually making these blueprints in the general routine of everyday l

41、iving. If we intend to have friends to dinner, we plan the menu, make a shopping list, decide which food to cook first, and such planning is an essential for any type of meal to be served. Likewise, if you want to find a job, take a sheet of paper, and write a brief account of yourself. In making a

42、blueprint for a job, begin with yourself, for when you know exactly what you have to offer, you can intelligently plan where to sell your services. This account of yourself is actually a sketch of your working life and should include education, experience and references. Such an account is valuable.

43、 It can be referred to in filling out standard application blanks and is extremely helpful in personal interviews. While talking to you ,your could-be employer is deciding whether your education, your experience, and other qualifications, will pay him to employ you and your“ wares“ and abilities mus

44、t be displayed in an orderly and reasonably connected manner. When you have carefully prepared a blueprint of your abilities and desires, you have something tangible to sell. Then you are ready to hunt for a job. Get all the possible information about your could be job. Make inquiries as to the deta

45、ils regarding the job and the firm. Keep your eyes and ears open, and use your own judgement. Spend a certain amount of time each day seeking the employment you wish for, and keep in mind: Securing a job is your job now. （分数：1.00）(1). What do the elders mean when they say, “Its not what you want in

46、this world, but what you get. “?（分数：0.25）A.Youll certainly get what you want.B.Its no use dreaming.C.You should be dissatisfied with what you have.D.Its essential to set a goal for yourself.(2). A blueprint made before inviting a friend to dinner is used in this passage as_.（分数：0.25）A.an illustration of how to write an application for a jobB.an indication of how to secure a good jobC.a guideline for job descriptionD.a principle for job evaluation(3). According to the passage, one must write an account of himself before starting to find a job because _.（分数：0.25）A.that is the first