2. 外语
  3. Between 1970 and 1980, energy consumption by United States industry peaked and then declined, so that by 1980 total industrial u

Between 1970 and 1980, energy consumption by United States industry peaked and then declined, so that by 1980 total industrial u

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问题     Between 1970 and 1980, energy consumption by United States industry peaked and then declined, so that by 1980 total industrial use of energy was below the 1970 level even though total industrial output had grown substantially in the same period. Industry must have instituted highly effective energy conservation measures in those years to have achieved such impressive results.
    Which of the following, if true, most seriously weakens the conclusion of the argument?
选项 A、Many industries switched to the greatest extent possible from high-priced oil to lower- priced alternatives throughout the 1970’s.
B、Total residential energy consumption was higher in the United States in 1980 than it had been in 1970
C、Many industrial users of energy had paid little attention to energy conservation prior to 1970.
D、Industrial output grew less rapidly from 1970 to 1980 than it had from 1960 to 1970.
E、The industries whose production dropped sharply during the 1970’s included a disproportionately large number of energy-intensive industries.
答案E
解析 原文认为是能源节约措施导致能源消耗量减少，但是E选项认为是因为关闭了能源消耗量大的企业才导致能源消耗量减少，属于“寻找他因”的削弱，正确。A项石油价格和文章讨论的内容无关，故不选。B项说的是居民能源消耗，与文章无关，故不选。C项进一步说明了因为能源节约，导致1970年至1980年之前的能源消耗量减少，故不选。D项本题只需要讨论工业产出的增长，和增长速度无关，故不选。
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