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标题: 白勇GMAT语法全解,比较章节问题七 [打印本页]

作者: 落叶无声    时间: 2007-6-17 05:13
标题: 白勇GMAT语法全解,比较章节问题七

7, Because natual gas is composed mostly of metrane,a simple hydrocarbon,vehicles powered by natural gas emit less of certain pollutants than the burning of gasoline or diesel fuel.

A: less of certain pollutants than the burning gasoline or diesel fuel.

E: less of certain pollutants than those burning gasoline or diesel fuel.

答案E

我解题如下:

主句如果不用比较级:vehicles powered by natural gas emit certain pollutants

                                   vehicles powered by the burning of gasoline or diesel fuel emit certain pollutants 。

用比较级,根据白勇讲解,两句主语谓语相同可省略,保留做状语的介词短语或状语从句,所以认为选A呀,另外如果选Ethose指代的是谁呀???如果象我这样还愿回两个独立句子,第二句是什么呢?


作者: s7s7    时间: 2007-6-17 08:32

vehicles是比较对象,those就是指vehicles。

比较可以省主语、谓语,但是如果补出,绝不能补错


作者: 落叶无声    时间: 2007-6-17 11:47

还是不明白,如果those指代vehicles than后面句子也不通呀.


作者: 落叶无声    时间: 2007-6-17 20:49
自己顶起来,这类比较题对我来说一直很难,所以谁能把解题思路告诉我呀




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