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2022年初中英语:引导名词性从句的从属连词


    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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