2013年12月英语六级基础语法解析之宾语从句

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2013年12月英语六级基础语法解析之宾语从句
　　从句部分的连词取决于从句时一般疑问句、特殊疑问句还是陈述句；
　　eg：We must find out who did all these.
　　I want to know whether he will come.
　　I hope that he will come.
　　①    宾语从句的时态：如果宾语从句前的动词是过去式，则宾语从句的时态应相应变成过去时态；如果宾语从句是客观事实或真理，不管宾语从句前的动词时什么时态，宾语从句都用一般现在时；   eg：The teacher told us that the earth is round.   eg：Todd Park, a local detective, said the method has helped him learn more about an unidentified woman whose skeleton was found near Great Salt Lake.
　　②    宾语从句后接陈述句，用that引导，则that一般可以省略；    eg：I think that you are right.
　　③    宾语从句如果谓语动词是doubt，后面接的一般疑问句通常用weather或if引导；如果前面的谓语动词是don't doubt，则后面从句的连接词一定是that；    eg：I doubt whether he is telling the truth.           I don't that he is telling the truth.
　　宾语从句如果谓语动词是wonder，句型为I wonder if，后面的连接词不能用weather；
　　④宾语从句的否定转移：
　　①   think, believe, suppose, expect, fancy, imagine等动词后面宾语从句的否定词转移到主句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定式；   eg：I don't think I know you.
　　I don' t believe he will come.
　　②   将seem, appear 等后的从句的否定转移到前面。
　　It doesn't seem that they know where to go.
　　It doesn't appear that we'll have a sunny day tomorrow.
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