as 用作连词有哪些用法

as 用作连词有哪些用法

as 用作连词用法如下：

一、表示伴随

意为“随着”。如：

As time passed, things seemed to get worse. 随着时间的推移，情况似乎变得更糟了。

若其后不接从句，而接名词，则用介词 with 表示“随着”。如：

With the development of modern agriculture and industry, more and more waste is produced. 随着现代工农业的发展，污染越来越严重了。

二、表示让步

意为“虽然”“尽管”，要用于倒装句（相当于 though，但语气稍弱）。如：

Boy as he was, he behaved like a girl. 他虽然是个男孩，但举止却像个女孩。

Much as I like you, I couldn’t live with you. 我尽管很喜欢你，却不能和你一起生活。

Try as he would [might]，he couldn’t open the door. 他试过多次了，却仍打不开门。

三、表示时间

意为“当……时候”。如：

He dropped the glass as he stood up. 他站起来时，把杯子摔了。

As I was coming here, I met your brother. 我来这里时碰到了你的弟弟。

注意，as 引导时态状语从句时，其谓语动词通常只能是动作动词，而不能是静态或状态动词。如：

她出生后不久父母双亡，是由姑母抚养大的。

误：Her parents died as she was a baby and she was brought up by her aunt.

正：Her parents died when she was a baby and she was brought up by her aunt.

四、表示原因

引导原因状语从句时，其谓语动词可以是动作动词，也可以是状态动词。如：

As you weren’t there I left a message. 因为你不在那里，我留了个信儿。

另外，引导原因状语从句，可用以下这样的倒装语序。如：

Tired as she was, I decided not to disturb her. 因为她累了，我就决定不打扰她了。

Writing hurriedly as she was, she didn’t notice the spelling errors. 因为写得仓促，她没有注意其中的拼写错误。