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使用as的注意事项通用三篇

下面是小编整理的一些关于使用as时的注意事项,希望对大家的英语学习有所帮助.。

1. as用作连词,注意以下用法:

(1) 表示“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 andindustry,

more and more waste is produced. 随着现代工农业的发展,污染越来越严重了。

(2) 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:

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。

注:倒装后位于句首的名词通常不用冠词。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。

2. as用作介词,意为“作为”、“当作”、“充当”。如:

He treats me as a child. 他把我当小孩看待。

As your doctor, I advise you to eat less. 作为你的医生,我建议你少吃点。

3. as用作关系代词,主要用法有:

(1) 用在 such, same, as 等之后,引导限制性定语从句。如:

I live in the same place as Tom does. 我和汤姆住在同处。

Such people as knew him admired him. 认识他的人都钦佩他。

He smokes as expensive a cigarette as he can afford. 他抽一种他买得起的最贵的烟。

(2) 单独用作关系代词,引导非限制性定语从句,可放在主句之前(常译为:正如)或之后(常译为:这一点),且主从句之间一般要用逗号隔开。如:

He was absent, as is often the case. 他缺席了,这是常有的事。

As was expected, he succeeded at last. 正如我们所料,他终于成功了。

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