as soon as用法
英语动词的时间大致可分为三段:过去时、现在时、将来时。假设有两件事A和B,就会出现三种情况:
A 过去时 as soon as B 过去时
A 现在时 as soon as B 现在时
A 将来时 as soon as B 将来时
在每一个大的时间段内,A 和 B 的时态要统一。比如 A 过去时,B 肯定在过去时内。其它也是如此。至于在每个大时间段内,再根据A 和 B两件事的具体情况,具体对待。比如:A 和B都时过去时,A 和 B 是同时发生,还是先后发生,不是即将发生,再分别选用完成时、进行时、将来时。例如:
A 过去时 B 过去时:
I arranged the flowers in the vase as soon as I came back home.
一回到家里,我就把花在花瓶里插好。
A 过去进行时 B 过去完成时(虚拟)
He was shaking with fright as if he had seen a ghost.
他吓得直哆嗦,就好像看见了鬼一样。
A 将来时 B 将来时(可用一般现在时表达)
They will post me the tickets/post the tickets to me as soon as they receive my cheque.
他们收到我的支票后就立刻把票寄给我.
as soon as连接的时间状语从句中,指未发生的动作,规律是:主句一般将来时,从句用一般现在时代替一般将来时
如:I will tell him the news as soon as he comes back。
指紧接着发生的两个短动作,主从句都用一般过去时
如 He took out his English books as soon as he sat down
就这两种情况 ,熟记就行。
在宾语从句中,当主句为与过去时的时候,从句必须用与主句相对应的时态,所以为了与主句动词said呼应,时间状语从句中的will look up应该对应为过去将来时态would look up,finds对应为found
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)
参考资料:百度文库