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關(guān)系代詞as和which的區(qū)別
作者:supergra…  文章來源:本站原創(chuàng)  點(diǎn)擊數(shù)  更新時(shí)間:2015-08-18  文章錄入:admin  責(zé)任編輯:admin



關(guān)系代詞aswhich的區(qū)別

 

1. 互換的情況:兩者有時(shí)可互換。如:

I live a long way from work, as [which] you know. 我住得離工作單位很遠(yuǎn),這你是知道的。

2. 只有as的情況:以下兩種情況,習(xí)慣只用as,不用which。

①在such, as, the same后引導(dǎo)定語從句時(shí)只能用ash。如:

I never heard such stories as he tells. 我從未聽過他講那樣的故事。

It’s the same story as I heard yesterday. 這故事跟我昨天聽到的一樣。

This is the photo which shows my house. 這張照片拍的是我的住宅。

當(dāng)從句位于主句前面時(shí),只用 as。如:

As is known to everybody, the moon travels round the earth once every month. 月球每月繞地球轉(zhuǎn)一周,這是每個(gè)人都清楚的。

3. 值得注意的情況:以下三種情況值得注意。

as 引導(dǎo)的非限制性定語從句應(yīng)與主句在意義上和諧一致,但which無此限制。比較:

He went abroad, as [which] was expected. 他出國了,這是大家預(yù)料到的。

He went abroad, which was unexpected. 他出國了,這讓大家感到很意外。(不用as)

as 引導(dǎo)非限制性定語從句時(shí),先行詞通常不能是主句中某個(gè)具體的詞,而應(yīng)是整個(gè)句子、整個(gè)短語或某個(gè)短語推斷出來的概念,而which 則無此限制。如:

The river, which flows through London, is called the Thames. 這條流經(jīng)倫敦的河叫泰晤士河。(不用as)

③當(dāng)as 引導(dǎo)非限制性定語從句作主語時(shí),其謂語通常應(yīng)是連系動(dòng)詞,而不宜是其他動(dòng)詞,而 which則無此限制:

She has married again, as [which] seemed natural. 她又結(jié)婚了,這似乎很自常。

She has married again, which delighted us. 她又結(jié)婚了,這使我們很高興。(不用as)

 

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