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非常详细的宾语从句-初中重点必学知识
一、初级认知的孩子你只要知道第一层：
什么是宾语从句？
简单句：I know you.主 谓 （宾语是一个词）
复杂句：I know [ you are a teacher]. 主 谓 （宾语是一个句子）
所以： 宾语的位置上由一个词变成了一个句子，叫宾语从句。I know是主句。主句和从句的关系好比怀孕的妈妈和宝宝是一体的。
注意：
A:一般主句与从句之间有一个连接词：
（1:在从句为陈述句中that无含义，无成分，可删除
I know [that you are a teacher].
I don't know [that you are a teacher].
2：在从句为一般疑问句中用if/whether虽不作成分但要翻译为‘是否’，不可删除
He asked me [if Miss Gao was a teache]. 从句做asked的间宾。
3：在从句为特殊疑问句中用连接代词what/who/whom/whose/which和连接副词when/where/why/how）
I don't know 【what they are going to do】.
He asked me 【whose the book was】.
He wants to know [where we will go].
B: 注意语序：从句语序永陈述（连 主 动--【where连 we主 will go动 】
C：注意时态：1:主现则从随意；2:主过从在过中选（客观真理永一现）
1: I know [that she works here].主现从现
I know [that she will work here in a week].主现从将
I know [that she worked here three years ago].主现从过
2： He said [that he would stay in Huaihua].主过从过将
He said [that he worked here three years ago].主过从过
My geography teacher said [that the Earth is oval-shaped].
客观真理永一现
二、中级认知孩子可至第二层：
A. that不可省的情况 :
1 .当从主是that时；
2.当宾从为主从复合句且其从句位于主句之前时；
3 .当两个或多个宾从由并列连词连接时，第一个that可省，其他的不可省。
B. 否定转移：
1.当主句的主语为第一人称，谓为think,believe,suppose等时，要将从句的否定词转移到主句中。
eg:I don't think he will come with you.我认为他不会和你一起来。
C. 宾从的简化：
1.主句和从句的主语相同，且谓是hope/wish/decide/agree/choose等时,从句可简化为不定式结构： 如: I hope that I can receive your e-mail.=I hope to receive your e-mail.
2.主句和从句的主语相同，且谓是know,remember,forget,learm等时,从句可简化为"疑问词+不定式结构"：如：She doesn't know what she should do next.=She doesn't know what to do next.
3. 宾从可简化为名词或名词短语。如：I dont know what Tom said.=I don't know Tom's words.
D：if/whether的特殊用法：
1.介宾用;
2.动词不定式用;
3.有or not时用;
4.置句首时表强调

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