名词性从句引导词细辨 主语从句、表语从句、宾语从句和同位语从句都属于名词性从句范畴
引导这些从句的连词大体上相同,但是部分学生对其中某些连词之间的区别还不甚清楚
此外连词之间的差异也一直是各类英语试题的命题热点
本文就这些易错易混的连词谈谈它们的用法区别
一、that,what和 which 1
that引导名词性从句时只起连接从句的作用,本身没有任何意义,因此在从句中不充当任何句子成分,它的使用须注意以下几点: A
引导宾语从句时,that常可省略,但如果主句后跟有并列宾语从句时,只能省略第一个 that;若宾语从句前插有别的从句时,that也不能省略
例如: He told me (that) he was all right and that he would come to see me when he was free
他告诉我说他很好,并说在他有空时来看我
that引导主语从句位于句首时不可省略
如果 it作形式主语,而 that从句置于句末, 这时 that可以省略
例如: That he has lost his work is not true
他丢了工作不是真的
=It is not true (that) he has lost his work
当主语为 the reason时,注意应用 that 引导其表语从句,不能受汉语影响而误用 because
例如: The reason why he was late was that he missed the early bus
他迟到的原因是他没赶上早班车
(此句中的 that不可用 because代替) D
引导同位语从句时,切不可错用 which
例如: Word has come that some American guests will come to visi