标题: 求教一道OG题目 [打印本页] 作者: victorbj262 时间: 2010-5-30 08:32 标题: 求教一道OG题目 The peaks of a mountain range, acting like rocks in a streambed, produce ripples in the air ?owing over them; the resulting ?ow pattern, with crests and troughs that remain stationary although the air that forms them is moving rapidly, are known as “standing waves.” A) crests and troughs that remain stationary although the air that forms them is moving rapidly, are B) crests and troughs that remain stationary although they are formed by rapidly moving air, are C) crests and troughs that remain stationary although the air that forms them is moving rapidly, is D) stationary crests and troughs although the air that forms them is moving rapidly, are E) stationary crests and troughs although they are formed by rapidly moving air, is
E的错误很隐蔽，主要问题是although的逻辑层次混乱。 C当中的although是属于 crests and troughts 身后的that从句的内部关系， remain stationary although the air .... is moving rapidly, stationary 对 moving rapidly. 而E当中没有定语从句关系，根据平行对称原则， although的左右两边应该都是句子，所以E当中的although的关系就变成了the resulting flow pattern are known....., although they are formed by rapidly moving air了。 此时they的指代也不对了。作者: victorbj262 时间: 2010-5-30 10:01
“根据平行对称原则， although的左右两边应该都是句子”，说的很好。谢了。