※ 引述《tecoteco (teco)》之铭言： 15. Astronomer: Observations of the Shoemaker-Levi comet on its collision course with Jupiter showed that the comet broke into fragments before entering Jupiter's atmosphere in 1994, but they did not show how big those fragments were. In hopes of gaining some indication of the fragments' size, astronomers studied spectrographic analyses of Jupiter's outer atmosphere. These analyses revealed unprecedented traces of sulfur after the fragments' entry. The fragments themselves almost certainly contained no sulfur, but many astronomers believe that the cloud layer below Jupiter's outer atmosphere does contain sulfur. Since sulfur would have seeped into the outer atmosphere if comet fragments had penetrated this cloud layer, it is likely that some of the fragments were at least large enough to have passed through Jupiter's outer atmosphere without being burned up. In the astronomer's argument, the two portions in boldface play which of the following roles? (A) The first presents a circumstance for which the astronomer offers an explanation; the second is part of that explanation. (B) The first acknowledges a consideration that weighs against the conclusion of the argument; the second is that conclusion. (C) The first acknowledges a consideration that weighs against the conclusion of the argument; the second provides evidence in support of that conclusion. (D) The first provides evidence in support of the conclusion of the argument; the second acknowledges a consideration that weighs against that conclusion. (E) The first is a judgment advanced in support of the conclusion of the argument; the second is that conclusion. 正确答案是E 我看得懂题目 却不会选答案 麻烦大家帮小弟解答 谢谢!! --------解题思路分隔线------------------------------------------------------ boldface解题思路： (1) 确认态度: 略看句意後发现，两个boldface间没有转折字眼，句意上也无转折 故排除B, C, D <-注意其中的weigh against (2) 确认功能关键字: 第二个boldface的it is likely that，表结果 比较 A (explanation) & E (conclusion)，前者表因，後者表果 故排除A选E Done！ ( 还不知道原题在讲什麽东西......-_-||) -- boldface简单的可以纯靠技巧，难的就要拼阅读实力了..... --

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