内容正文:
高考英语名词性从句用法详解
一、考点分析
在复合句中具有名词的性质的作主语、宾语、表语、同位语的从句叫名词性从句。因此,我们把主语从句、宾语从句、表语从句和同位语从句这四种从句统称为名词性从句。名词性从句的高考考点考点引导名词性从句的关联词、名词性从句句法结构、定语从句与同位语从句的区别
二、专题讲解
知识点1)
引导名词性从句的关联词:
1.从属连词 :that , if ,whether
① that 本身没有意义,在从句中不做任何句子成分。引导单个宾语从句时,that可以省略。但引导主语从句、表语从句、同位语从句与形式宾语it并存的宾语从句时,that都不能省略。如果引导两个或两个以上宾语从句,第一个that可以省略,从第二个宾语从句起向后的从句中的that不能省。
例如:1. I don’t think (that)she is coming. (可省)
2. The reason is that he is careless. (不能省)
3. The news that our team won the match inspired us.(不能省)
4. I don’t think it necessary that you should read English aloud. (不能省)
5. He told me (that)his father had died and that he had to live alone.
(第一个可省,第二个不可省)
②.从属连词whether 和if
Whether 和if 是“是否”的意思,在从句中不担当句子成分。引导宾语从句时(动词后面的宾语从句)二者可以换用,若宾语从句提前只用whether. 但引导主语从句、表语从句、同位语从句、介词后的宾语从句,及紧跟or /or not 结构或不定式时,只能用whether.
①He wants to know whether or not you agree.
②He doesn’t know whether to stay or not.
③He wondered whether to accept or refuse.
④It all depends on whether they will