2023年中考英语知识点：引导名词性从句的从属连词

中考英语知识点：引导名词性从句的从属连词

从属连词不同与并列连词，只能用来引导从句，而不能引导词或者词组。从属连词一般可以引导名词性从句和状语从句。

引导名词性从句的从属连词

1) that 引导宾语从句或间接引语时，可省略。引导主语从句时不可以省略。

He said (that) he would come. 宾语从句

His mother told me (that) he is a good boy. 间接引语

That she is still alive is true. 主语从句

2) if/whether 是否

I wonder if he is at home.

I ask him whether he would come.

注意：只可以用whether的情况

介词后面 It will depend on whether it rains tomorrow.

whether···or not 固定搭配 Let me know whether you come or not.

动词不定式前 I don’t know whether to accept his advice.

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