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as與which引導(dǎo)非限制性定語從句的區(qū)別 | |||
作者:nmet168 文章來源:本站原創(chuàng) 點(diǎn)擊數(shù): 更新時(shí)間:2008/9/22 |
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說明:引用此文請(qǐng)注明出處,并務(wù)請(qǐng)保留后面的有效鏈接地址,謝謝!
as與which引導(dǎo)非限制性定語從句的區(qū)別 這類定語從句只能由 which 或 as 引導(dǎo)。兩者之間的區(qū)別在于: 1. which 引導(dǎo)的定語從句只能位于主句后,但as引導(dǎo)的從句可位于主句前、中、后。如: David, as you know, is a photograopher. 戴維是個(gè)攝影師,你是知道的。(不可用which) Li Ming is late, as is often the case. 李明遲到了,這事是經(jīng)常發(fā)生的。(不可用which) 2. as在定語從句中作主語時(shí),從句謂語通常要有be或別的系動(dòng)詞,但which不受此限制。如: Li Ming was late, which (=and this) made Mr. Zhang very angry. 李明遲到了,這件事使張先生非常生氣。(不可用as) 3. as 引導(dǎo)的定語從句只表示一個(gè)眾所周知或意料之中的事,但 which 不受此限制。如: He married her, which was unexpected. 他和她結(jié)婚了,這是出乎意料的。(不可用as) 4. as有“正如”之意,而which則意為“這(件事,一點(diǎn))”,可用and this/that/it來代替。 5. as多用于固定搭配中:as is often the case(這是常有的事),as was expected(不出所料),as often happens(正如經(jīng)常發(fā)生的那樣),as is known to all(眾所周知),as has been said before(如上所述),as is mentioned above(正如上面所提到的)等。 注:which 代表整個(gè)句子,還可用于in which case, at which point, on which occasion等。如: 引用地址: |
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