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1、中国考博辅导首选学校中国考博辅导首选学校武汉理工大学考博英语模拟真题及其解析武汉理工大学考博英语模拟真题及其解析 TextText 1 1In the atmosphere, carbon dioxide acts rather like a one-waymirror - the glass in the roof of a greenhouse which allows the sunsrays to enter but prevents the heat from escaping.According to a weather experts prediction, the atmosp
2、here willbe 3 warmer in the year 2050 than it is today, if man continues toburn fuels at the present rate. If this warming up took place, theice caps in the poles would begin to melt, thus raising sea levelseveral metres and severely flooding coastal cities. Also, the Gengduo yuan xiao wan zheng kao
3、 bo ying yu zhen ti ji qi jie xi qing lianxi quan guo mian fei zi xun dian hua: si ling ling liu liu ba liu jiuqi ba ,huo jia zi xun qq: qi qi er liu qi ba wu san qi increase inatmospheric temperature would lead to great changes in the climateof the northern hemisphere, possibly resulting in an alte
4、ration ofearths chief food-growing zones.In the past, concern about a man-made warming of the earth hasconcentrated on the Arctic because the Antarctic is much colder andhas a much thicker ice sheet. But the weather experts are now payingmore attention to West Antarctic, which may be affected by onl
5、y a fewdegrees of warming, in other words, by a warming on the scale thatwill possibly take place in the next fifty years from the burning offuels.Satellite pictures show that large areas of Antarctic ice 中国考博辅导首选学校中国考博辅导首选学校already disappearing. The evidence available suggests that a warminghas tak
6、en place. This fits the theory that carbon dioxide warms theearth.However, most of the fuel is burnt in the northern hemisphere,where temperatures seem to be falling. Scientists conclude, therefore,that up to now natural influences on the weather have exceeded thosecaused by man. The question is: Wh
7、ich natural cause has most effecton the weather?One possibility is the variable behavior of the sun. Astronomersat one research station have studied the hot spots and “cold” spots(that is, the relatively less hot spots) on the sun. As the sun rotates,every 27.5 days, it presents hotter or “colder” f
8、aces to the earth,and different aspects to different parts of the earth. This seems tohave a considerable effect on the distribution of the earthsatmospheric pressure, and consequently on wind circulation. The sunis also variable over a long term: its heat output goes up and downin cycles, the lates
9、t trend being downward.Scientists are now finding mutual relations between models ofsolar-weather interactions and the actual climate over many thousandsof years, including the last Ice Age. The problem is that the modelsare predicting that the world should be entering a new Ice Age andit is not. On
10、e way of solving this theoretical difficulty is to assumea delay of thousands of years while the solar effects overcome theinertia (惯性) of the earths climate. If this is right, the 中国考博辅导首选学校中国考博辅导首选学校effect of carbon dioxide might thus be serving as a usefulcounter-balance to the suns diminishing h
11、eat.36. It can be concluded that a concentration of carbon dioxidein the atmosphere would _.A prevent the suns rays from leeching the earths surfaceB mean a warming up in the ArcticC account for great changes in the climate in the northernhemisphere(D)D raise the temperature of the earths surface37.
12、 The article was written to explain _.A the greenhouse effectB the solar effects on the earthC the models of solar-weather interactions(D)D the causes affecting weather38. Although the fuel consumption is greater in the northernhemisphere, temperatures there seem to be falling. This is _.A mainly be
13、cause the levels of carbon dioxide are risingB possibly because the ice caps in the poles are meltingC exclusively due to the effect of the inertia of the earthsclimate(D)D partly due to variations in the output of solar energy39. On the basis of their models, scientists are of the opinionthat _.A t
14、he climate of the world should be becoming 中国考博辅导首选学校中国考博辅导首选学校B it will take thousands of years for the inertia of the earthsclimate to take effectC the man-made warming effect helps to increase the solareffects(A)D the new Ice Age will be delayed by the greenhouse effect40. If the assumption about
15、 the delay of a new Ice Age is correct,_.A the best way to overcome the cooling effect would be to burnmore fuelsB ice would soon cover the northern hemisphereC the increased levels of carbon dioxide in the atmosphere couldwarm up the earth even more quickly(D)D the greenhouse effect could work to the advantage of the earthTextText 2 2Some people believe that international sport creates goodwillbetween the nations and that if countries play games together theywill learn to live together. Others say that the opposite is true:that international contests encourage
