名词性从句 (2).doc
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1、名词性从句名词性从句包括主语从句、宾语从句、表语从句和同位语从句。主语从句:主语从句在复合句中作主语,可以放在主句谓语动词之前,也可以由it作形式主语,而将主语从句放在主句之后。如:Why he left wasnt important.It was uncertain whether he would come or not.宾语从句:宾语从句在句中作及物动词或介词的宾语。如:I felt that he had a strong will.He will talk to us about what he saw in the school.表语从句:表语从句在句中作表语,位于主句中系动词之
2、后。如:The question is who is responsible for what has happened.He looked as if he was going to cry.同位语从句:同位语从句一般跟在某些表示抽象意义的名词后面,用来说明名词所表示的具体内容。如:I had the impression that he chose his words with care.I have no idea when he will be back.关于名词性从句我们应该掌握以下几点:一、 掌握引导名词性从句各类连接词的用法。高考试题在考查名词性从句时,常考查引导名词性从句的连接
3、词。引导名词性从句的连接词有三大类:1. 单纯连接词:that,whether,if。它们只起引导从句的作用,并不在从句中充当任何成分。that在句中没有一定的含义。whether和if有含义,表示“是否”之意。注意,if只能用来引导宾语从句,不可引导主语从句、表语从句和同位语从句。如:He told me that he would leave office soon.She asked me whether (if) I could lend her my dictionary.2. 连接代词what, who, which, whose, whom。它们除了引导名词性从句外,还在从句中充
4、当一定的成分。如:What can be done has been done. what引导主语从句,并在从句中作主语。Can you tell me which box is yours? which引导宾语从句,并在从句中作定语,修饰box。3. 连接副词how, why, where, when。它们除引导从句外,还在从句中作状语。如:I dont know how I can finish my work so soon.Your coat is still where you put it.二、 注意名词性从句的语序和时态。名词性从句的语序应该是陈述语序,不能用疑问语序。名词性从句
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