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as soon as在一从句中,从句的主句从句的时态关系

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as soon as在一从句中,从句的主句从句的时态关系
新概念65课As soon as he had finished,Jenny told him she wanted to go home.在这个句子里,一个是过去完成时,一个是一般过去时,是不是所有与as soon as 相连的时态都有所变化?在这个句子里,哪个是主句?
在这里Jenny told him she wanted to go home是主句,而As soon as he had finished是一个状语从句.
下面是as soon as的用法用作参考:
它的意思相当于“A事情发生以后,就做B这件事”.
这个短语用的比较常用,口语和书面语都可以.它的特点是,在句子中的位置比较灵活,而且可以用于各种时态.例如:
I’ll write you as soon as I get there.
我一到那儿就给你来信.(一般现在时)
As soon as I went in,Katherine cried out with pleasure.
我一进门,Katherine 就高兴的叫起来.(一般过去时)
I’ll return the book as soon as I have read it.
我一读完就把书还回去.(现在完成时)
Andrew left as soon as he had drunk his coffee.
Andrew一喝完咖啡就走了.(过去完成时)