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D.Los Angeles is as heavily polluted today as London was in the 1950s
44、 What will happen if the dust aerosol layer develops? A.The Earth will get extremely hot.
B.The balance between the amount of heat absorbed from the Sun and the amount lost could hardly be maintained.
C.The light of the Sun could no longer reach the surface of the Earth. D.Infrared radiation could no longer be transmitted from the Earth to outer space.
45、 The only way to stop the spread of aerosols in the atmosphere, according to Dr. Rasool and Dr. Schneider, is to use________.
A.fossil fuels B.electric power C.nuclear energy D.coal power
B) King's home was a place where people tested bombs. C) King's home was a place where weapons were stored. D) King's home was a place where bombs exploded.
第五部分-补全短文
The Dollar in World Markets
According to a leading German banker, the U.S. dollar is \
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frequently discussed economic phenomenon of our times.\?the
dollars exchange rate is at present the most important price in the world economy?\central banks of many countries hold huge reserves of dollars, and over half of all world trade is priced in terms of dollars. Any shift in the dollars exchange rate will benefit some and hurt others. Some people suggest, therefore, ____(2)___.
The dollars exchange rate has been too volatile and unpredictable. Several years age the dollar was rapidly declining in value. This made it ___(3)___. The rise in the price of foreign goods made it possible for U.S. businesses to raise the price of competing foods produced here, thus worsening inflation. Foreigners who dealt in dollars or who held dollars as reserves were hurt. People in the United States who had borrowed foreign currencies found that they had to pay back more than they borrowed ___(4)___. The United States lost face in the eyes of the rest of the world.
The dollar went soaring upward, and the situation was reversed. United States exporters found it hard to sell abroad because foreigners would have to pay more for U.S. dollars. People in the United States now bought the relatively cheaper foreign goods, and U.S. manufacturers complained that they could not compete. Job losses were often blamed on the
\both the loans and the interest because they had to use more and more of their own currencies to obtain dollars. The solution to this problem is to end the system of floating exchange rates and return to fixed rates. We might even return to the gold standard.
Fixed exchange rates did not work in the past. Currency values should be determined by market conditions. A drop in the exchange value of a nations currency means that it is importing too much, that it is too inefficient to compete in world markets, that it is permitting a high rate of inflation which makes its goods too expensive, that it is going too deeply in debt, or that others have lost confidence in the nations stability. A nation should bring its exchange rate back up by addressing these problems, not by interfering with the money market.
A. that had borrowed dollars
B. that the dollars value should be more tightly controlled
C. because the declining dollar would buy fewer units of the foreign money
D. its value affects many nations
E. difficult for Americans to purchase foreign goods and services F. that have a lot of U.S. Dollars
第六部分-完形填空
Highways in the United States
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The United States is well-known for its network of major highways
designed to help a driver get from one place to another in the shortest possible time. __1__ these wide modern roads are generally __2__ and well maintained， with few sharp curves and __3__ straight sections， a direct route is not always the most __4__ one. Large highways often pass __5__ scenic areas and interesting small towns. Furthermore， these highways generally __6__ large urban centers which means that they become crowded with __7__ traffic during rush hours， __8__ the “fast， direct” way becomes a very slow route. However， there is almost always another route to __9__ if you are not in a hurry. Not for from the relatively new “superhighways”， there are often older， __10__ heavily traveled roads which go through the countryside. __11__ are good lane roads; others are uneven roads curving __12__ the country. These secondary routes may go up steep slopes， along hilly cliffs or down frightening hillsides to towns __13__ in deep valleys. Though these are less __14__ routes， longer and slower， they generally go to places __15__ the air is clean and the scenery is beautiful， and the driver may have a chance to get a fresh， clean view of the world.
1.A)Although B)But C)Since D)Because 2.A)uneven B)bumpy C)rough D)smooth 3.A)little B)much C)many D)few
4.A)terrible B)horrible C)tolerable D)enjoyable 5.A)to B)into C)at D)by
6.A)merge B)connect C)combine D)mix 7.A)busy B)small C)large D)heavy 8.A)when B)where C)which D)that 9.A)walk B)go C)take D)fix
10.A)more B)less C)very D)extremely
11.A)all of these B)None of these C)All roads D)Some of these 12.A)out of B)out C)through D)from 13.A)lying B)lie C)lies D)lay
14.A)direct B)indirect C)enjoyable D)beautiful 15.A)these B)which C)that D)where
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参考答案
1-15 ABACD DCBAB ACCDB 16-22ABCABBC
23.F[解析]第一段的大意即：什么是帕金森综合征?因此选F。 24.E [解析]第二段的大意即：什么原因导致帕金森症?因此选E。
25.D [解析]第三段的大意即：帕金森综合征的典型症状是什么?因此选D。 26.B[解析]第四段的大意即：如何治疗帕金森症?因此选B。
27.A [解析]如果你的体内没有足够多的多巴胺，那么你会发现活动起来有困难。根据第一段最后一句：Then you no longer have enough dopamine，and you have trouble moving the way you want to.因此选A。
28.F[解析]人们正在进行大量的研究来发现导致帕金森综合征的原因。根据第二段前三句话及后面提到的aging，poisons in environment等可推断应选F。
29.E[解析]帕金森症最主要的一个症状就是颤抖，颤抖也可能是你注意到的最初症状。根据是第三段的第一句话：Tremor may be the first symptom you notice.可知E正确。
30.C [解析]得了帕金森症的病人必须要学会适应这种疾病，因为这还是一种不治之症。根据文章第四段第一句：At this time，there is no cure for Parkinson’s disease.可知应选C。
31-35 ADCBC 36-40ACDBC 41-45 CDCCC 46-50 DBECA
51-65A D C D D B D A C B D C A A D
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