which与as引导定语从句时的区别

• 作者: 凌玉玲
• 来源期刊: 中学英语园地：高三版
• 学科: 教育
• 年，卷（期）: 2005,（Z2）
• 页数: 3页
• 分类号: G63

摘要

一、which与as引导非限制性定语从句时的区别1.由as引导的非限制性定语从句可位于主句的句首,句中或句末,而w hich引导的非限制性定语从句只能放在主句的后面。例如:(1)As she realized,he was very important to her.(2)Water,as everyone knows,is a liquid.(3)All that glitters is not gold,as we know.(4)The weather forcastsays it will rain heavily,which makes us put off the sports meet.2.在which引导的非限制性定语从句中,谓语动词若是am,are,is等系动词,则这些系动词不能省略;若是同样的情况,as后面可以省略am,are,is等系动词。例如:(1)He is from the States,as(is)clear from his accent.他是美国人,他的口音清楚地说明了这一点。(is可省略)(2)The weather turned out fine,which was wh...