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名词性从句之同位语从句

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在复合句中充当同位语。1. that引导同位语从句。   在下列名词后可用that引导同位语从句answer, belief,doubt, fact, hope, idea, information, knowledge, law, news, opinion, plan, suggestion, thought, truth等。  I had no idea that you were here.  The story goes that william killed his wife.注意 ①同位语从句引导词that无含义,不充当成分,不可省略。 ②同位语从句与其说明的名词或代词为同一内容,故可以用is把前边的中心词和从句连接成一个句子。 ③同位语从句前一般没有逗号。 that引导同位语从句与引导定语从句的区别: that引导同位语从句时只起连接作用,不充当任何成分; that引导定语从句时,在从句中要作成分,如主语、宾语等。 ①He told me the news that our team won.(that引导同位语从句) ②The news that / which he told me was very exciting.(that引导定语从句,在从句中作宾语)2.在no idea, question, problem等后可用wh-疑问词引导同位语从句,if不引导同位语从句。   I have no idea where he has gone.   i have no idea what he said.3.辨析:引导名词性从句时what与whatever, who与whoever的区别:   what 与whatever:   What you want has been sent here.  ( what = the thing(s) that/all that/anything that特指)   Whatever you want makes no difference to me.(whatever = anything that泛指)   What caused the accident was a broken bottle.(特指)   Whatever caused the accident has not yet been found.(泛指)   who 与whoever :   Who will go to beijing on business has not been decided.(who表疑问,表示“谁”,“哪一个”)。   Whoever breaks the law should be punished.(whoever = anyone who,表示“无论哪个人”)

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