OG CR 97黑体题
Delta Products Inc. has recently switched at least partly from older technologies using fossil fuels to new technologies powered by electricity. The question has been raised whether it can be concluded that for a given level of output Delta’s operation now causes less fossil fuel to be consumed than it did formerly. The answer, clearly, is yes, since the amount of fossil fuel used to generate the electricity needed to power the new technologies is less than the amount needed to power the older technologies, provided level of output is held constant. In the argument given, the two boldfaced portions play which of the following roles? (A) The fi rst identifi es the content of the conclusion of the argument; the second provides support for that conclusion. (B) The fi rst provides support for the conclusion of the argument; the second identifi es the content of that conclusion. (C) The fi rst states the conclusion of the argument; the second calls that conclusion into question. (D) The fi rst provides support for the conclusion of the argument; the second calls that conclusion into question. (E) Each provides support for the conclusion of the argument.
答案选B，虽然用排除法可以选出来，但是无法理解为何第一个句子是provide support for the conclusion of the argument，对于support不是太理解，是否只要能够形成conclusion的，无论是backgound还是fact，都是一种support呢？我觉得第一个句子只是一个fact，并没有因为这个fact就会产生第二个句子啊。那何来support呢？求大牛。谢谢。
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发表于 2013-12-7 05:24:53
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