限制性定语从句修饰先行词,对先行词起修饰作用,不同引导词有不同的含义和用法,下面,小编就来给大家分享一下选择定语从句的引导词的技巧,一起来看看吧!

 

引导词as可引导限制性定语从句,也可引导非限制性定语从句。

1.在固定词组the same...assuch...as中,as引导限制性定语从句。如:

He is not such a fool as he looks

I've bought the same dress as she is wearing

2.当先行词是整个主句时,可用 as which引导非限制性定语从句。引导词aswhich的区别在于:

as引导的非限制性定语从句可放于主句前、主句中、主句后,而which引导的非限制性定语从句一般放于主句后或句中。

as常与从句中的knowsee hearexpect等动词连用,也常用于as often happensas is often the case(常有的事)等句子中;而which一般不用于以上情况。

as有“正如”的含义,which没有此含义。如:

As is well knownShanghai is a big city

Some of the roads were flooded which made our journey more difficult

 

关系代词whowhomwhose whichas能引导非限制性定语从句,而that不能;非限制性定语从句中即使缺宾语,引导词也不能省略;关系副词whenwhere能引导非限制性定语从句,而why不能。如:

Abraham Lincolnwho led the United States through the Civil War yearswas shot on April 141865

 

以上就是有关选择定语从句的引导词的技巧的内容了。希望能给大家带来相应的帮助,喜欢就赶快收藏起来吧~