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:
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。
- 相关文章
- ·英语中的主动表被动08-10·2011年语法填空专练[共28篇]05-11·语法填空之非谓语动词易错点专练04-15·英语语法填空解题技巧05-22·语法指津 高中英语动词时态语态07-28·[语法指津] 非谓语动词题的8条经典原则03-18·200句记忆高中英语3500词(语法填空练习)09-04·英语构词法对语法填空的解题帮助04-14
- 最新文章
- ·语法填空之非谓语动词易错点专练04-15·现在完成时和现在完成进行时的不同04-10·语法填空:专题分类特训(名词 代词 冠词)02-15·精华版本 | 高中英语语法填空分类练习01-27·一篇吃透英语零基础语法,春季高考生收藏!12-24·语法填空 做谓语动词题 最需记的原来就这两点12-12·语法必刷题~定语从句专练09-13
- 阅读排行
- ·10款在线检查英语语法的网站07-16·假期学英语系列2:定语从句02-02·假期学英语系列1:代词02-02·语法专题:定语从句11-28·假期学英语系列3:动词时态语态02-04·语法填空题考查形式及考点分布04-13·虚拟语气的用法讲解03-18·2012届语法复习之非谓语动词检测题09-12·2012届语法复习之定语从句检测试题09-12·【备考2016】高考语法填空解题技巧及专项训练08-07
点击这里识别二维码关注公众号