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SAT OC上的一道语法题解析.

刚刚更新 编辑: 浏览次数:358 移动端

The Pony Express was an ingenious system for carrying mail, having existed only brily, bore the tellegraph system made it obsolete.红色部分是错的,大家说是having existed指代不明,但是 在这种结构里面S+V+O,ving 指代的不是都是主语么?那指代的的就是pony express,for carrying mails是目的状语,不影响啊,,,百思不得其解,望大家解答,麻烦了

解析:

这个答案好像B,mail, for it was in existence only brily,however,

分开分析吧

情况一:就近修饰,逻辑主语,即只能指mail,错误

情况二:修饰状态,什么状态呢?The PE was a system,这怎么修饰嘛,逻辑~~~~而且having done的用法好像大多用在逻辑主语里面,~

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