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1)介词(after, before, on)+动名词这个结构通常相当于一个时间状语从句。 2)如果两个动作中有一个在另一个开始之前已经完成,则可以用 after+动名词的完成式表示第1个动作;如果只表示先后顺序,则可用after(或before)+动名词结构; on+动名词通常表示两个动作几乎同时发生: =>After having been instructed to drive out of town, I began to acquire confidence. =>The man called the police after being robbed. =>He killed a child before being arrested. =>On/After being told that her mother was seriously ill, she hurried back to England.
在google 上搜的,觉得有道理,但也不知道到底是不是正确的,还望大牛指点。 |
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