as

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as soon as引导的时间状语从句的规则:若主句为一般将来时,从句常用一般现在时表将来;若主句不是一般将来时,那么从句的时态就要根据上下文来定。

as soon as的用法

1、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.

注:有时,为了特意表达刚刚完成某事就如何如何,需要用现在完成时.

如:I will go with you as soon as I have washed my face.

2、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

不过,我也见过从句和主句都用一般现在时的情况.

如:As soon as he finishes his classwork,he runs out of the class.他一做完课堂作业,就跑出了教室.

as soon as的例句

He felt shame as soon as he had spoken .

话一出口,却又觉得挺丢人的。

I'll ask her as soon as she slows down .

要她稍稍闲下来,我就会问她。

I remarked the heat as soon as i entered the room .

一进房间就觉得热。

The atmosphere changed as soon as she walked in .

她一进来气氛就变了。

When you are ill , see the doctor as soon as possible .

有病要及早治。

I recognized him as soon as i saw his back .

我一看到后身,就认出是他。

I shall spirit up the colonel as soon as i can .

我要尽快地给上校打气。

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