Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy by boundaries in the ocean created by water layers of differing temperatures and densities.
Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy by boundaries in the ocean created by water layers of differing temperatures and densities.
这道题用排除法更好一点。 上来辨别,应用by而非as a result of,一个表示方式,一个表示结果,意思是不一样的。排除AD。 接下来分析句意,应该是sound be prevented, 不是 sound prevent. 应该被动,排除E。 然后BC开比,B的from having done太累赘。选C
A.as a result of错误. B.prevented错误.have ... dissipated累赘. D.from being...累赘,as a result of错误. E.preventing逻辑主语错误.
另外,原文已经找到。 http://www.nytimes.com/1998/10/27/science/global-thermometer-imperiled-by-dispute.html "Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy by boundaries in the ocean created by water layers of differing temperatures and densities." 作为对于正确选项C的理解,我认为不是独立主格,仅是一个倒装提前。因为如果独立主格的话,就是energy be prevented,意思又不对了。