332 as意为whenwhile(当……时)

becausesince(由于)

 

A as(=whenwhile)的用法的限制

这里as主要与表示动作或发展过程的动词连用,一般情况下它不与第168节中所列的动词连用,除如上面B3所示有发展之意时例外。在一般情况下它也不与livestayremain这类动词连用。

B as与上述动词或同类动词连用时,一般均表示becausesince (由于):

As he was tired…相当于:

Because he was tired...

因为他太累了……

As he knew her well…相当于:

Because he knew her well……

因为他了解她……

As it contains alcohd...相当于:

Since/Because it contains alcohol……

因为它含有酒精……

As he lives near here…相当于:

SinceBecause he lives

因为他住的地方离这儿很近……

C as与多数动词连用时,可以是两种意思中的任一个意思:

As/While he shaved he thought about the coming interview

他边刮胡子,边想着即将进行的面谈。

AsBecause he shaved with a blunt razor he didnt make a very good job of it

因为他用一把钝剃须刀刮胡子,所以刮得不好。

如果在这个问题上没有把握,最好用whilebecause

D as+名词时意为when/while(当……时)或because/since(由于):

As a student he had known great poverty.相当于:

When he was a student he had known great poverty

他当学生时,经历过很贫困的生活。

As a student he gets/got in for half price.相当于:

Because he iswas a student be getsgot in...

由于是学生,他付半价就入场了。

As a married manhe has to think of his family.相当于:

BecauseSince he is a married man...

作为一个有妇之夫,他必须考虑他的家庭。

as在这里意为 whenwhile时,后面常跟完成时态。

as意为becausesince时,后面可跟任一时态。