宾语从句是名词性从句的一种。在主从复合句中充当宾语,位于及物动词、介词之后的句子称为宾语从句。宾语从句分为两类:动词的宾语从句和介词的宾语从句。
一、动词宾语从句。
引导动词宾语从句的关联词包括:
从属连接词:that、whether、if。
疑问代词:who、whom、whose、what、which。
疑问副词:when、where、why、how。
缩合连接代词:what、who、whom、that、which、whoever、whomever、whatever、whichever。
缩合连接副词:when、where、why、how、whenever、wherever、however。
what既可作疑问代词,也可以做缩合连接代词,whatever只作缩合连接代词使用。
二、介系词宾语从句。
介系词宾语从句大多用从属连接词whether和疑问词、缩合连接代词、缩合连接副词引导,有时候except、but、besides、in四个介词后可见到that引导的宾语从句。如:
I don't deny but that they still insist on their opinions.
I can't remember the woman except that she wore glasses.
I am lucky in that I have three brothers.