点击这里查看首页

浅析which与as引导定语从句的区别


来源:高中英语教学交流
发布时间:2009-11-30 10:21:00
查看次数:

内容提要:高中英语教学交流网 http://zshunj.cn

  众所周知,which与as都可以引导定语从句,但它们有许多用法上的区别,现就此简要分析如下:

  一、which与as引导非限制性定语从句的区别:

  1.Which只能放在主句后面,而as引导的从句位置相对较灵活,可在前,可在中,也可在后。例如:

  A)   As he realized, I was very useful to him.(在前)

  B)   Air, as we know, is a gas.(在中)

  C)   He was a foreigner,as I know from his accent.(在后)

  2.在which引导的定语从句中,谓语动词若是am, is, are则这些系动词不能省略;而as后面若是这种情况,则可以省略。例如:

  A)   He is a teacher, as (is) clear from his manner.(is可以省略)

  B)   He said he had never seen her before, which was not true.(was不可省略)

  3.当which引导的从句在意义上近乎并列关系时,可以用and this,and that代替,意思是“这件事”例如:

  A)   He changed his mind, which(and this, and that)made me very angry.他改变了主意,这使我很生气。

  B)   She has married again, which(=and this, and that)was unexpected.出乎意料的是,她又结婚了。

  而as主要起与上下文连接的作用,表达说话人的看法、观点,并指出主句内容的出处或根据等,例如:

  C)Einstein, as we know, is a famous scientist.爱因斯坦,众所周知,是位伟大的科学家。

  D)As is announced in today's newspaper, we must improve our style of work.今天的报纸上说,我们必须改进工作作风。

第1页 第2页 第3页

相关文章
·典型定语从句易错题详解03-13
·语法填空解题指导01-24
·英语340个不规则动词的过去式与过去分词(H-S)08-23
·定语从句专题讲解11-05
·划重点!语法填空中动词常这样考……04-13
·带宾语补语的常用句型01-31
·语法指津 定语从句专练,赶紧收藏!08-02
·语法专练 情态动词和虚拟语气及巩固练习06-23
·语法填空技巧口诀和高考真题对照实践导学案12-25
·轻巧突破高中英语语法04-25
最新文章
·高考英语真题语法填空(动词考点)200题07-02
·2025年高考英语语法填空真题考前冲刺训练06-04
·高考英语语法填空满分技巧思维导图05-10
·高考英语语法填空满分技巧05-09
·“ABC”三步解题法:解锁高考英语语法填空的金钥匙04-14
·攻克高考英语语法填空:八大高频考点详解04-14
·高中英语语法|真题探规律搞定非谓语动词04-09
·高考英语语法专项︱定语从句专练:真题、模拟题、写04-05
·高考英语语法专项︱定语从句专练:真题、模拟题、写04-03
·高考语法填空专练|非谓语专项60题04-01
阅读排行