第112题 Older United States automobiles have been identified as contributing disproportionately to global air pollution. The requirement in many jurisdictions that automobiles pass emission-control inspections has had the effect of taking many such automobiles out of service in the United States, as they fail inspection and their owners opt to buy newer automobiles. Thus the burden of pollution such older United States automobiles contribute to the global atmosphere will be gradually reduced over the next decade. Which one of the following, if true, most seriously weakens the argument? (A) It is impossible to separate the air of one country or jurisdiction from that of others. Since air currents circle the globe. (B) When automobiles that are now new become older, they will, because of a design change, cause less air pollution than older automobiles do now. (C) The number of jurisdictions in the United States requiring automobiles to pass emission-control inspections is no longer increasing. (D) 原书上缺漏 (E) Even if all the older automobiles in the United States were retired from service, air pollution from United States automobiles could still increase if the total number of automobiles in use should increase significantly. C为什么是削弱呢?我觉得该选A...
the assumption between conclusion (Thus the burden of pollution such older United States automobiles contribute to the global atmosphere will be gradually reduced over the next decade) and premise (The requirement in many jurisdictions that automobiles pass emission-control inspections has had the effect of taking many such automobiles out of service in the United States, as they fail inspection and their owners opt to buy newer automobiles) is that inspection should continue....
the way to weaken the conclusion is to undermine this assumption!
这个题应该选c,理由如下 题目说的是美国对全球污染的影响，因此说它国的都必须排除，所以a,d该排除 b怎么看都不想weaken,反而使support e,削弱应该削弱文中的的论据，e中的论据和文中强调的requirement in jurisdictions没关系 c为什么对呢，首先对The requirement in many jurisdictions that automobiles pass emission-control inspections has had the effect of taking many such automobiles out of service in the United States, as they fail inspection and their owners opt to buy newer automobiles.进行weaken, 这时候我的理解是只有jurisdiction逐步increase, older car才会更多的退役，然后才能gradually reduced. c正好是对这个取反，因此c正确
cranberry也是这个意思，还有问题的第一局是evidence,不能削弱，因此削弱的对象只有下面一句The requirement in many jurisdictions that automobiles pass emission-control inspections。。。。，所以只有跟着个有联系的才能做答案 我也是个新手，请多多指教
C. There is a thriving market for used older united states automobiles that are exported to regions that have no emission-control regulations. 因为这些汽车被卖到别的国家，因此“such older United States automobiles contribute to the global atmosphere will be gradually reduced over the next decade”是错的
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发表于 2003-11-8 19:37:00
