在句子中起宾语作用的从句叫做宾语从句。宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句。
宾语从句 用法
宾语object clauses从句用法
宾语从句的连接词：
结构：主语+谓语+宾语(陈述语序) 【注意：1~引导词.that 2~语序v.+主+谓 由if、whether引导宾语从句 3~时态：A.主句---现在时 从句---任一时态】
、从属连词
连接宾语从句的从属连词主要有that,if,whether，和疑问词(what， how， where， when ...)。
that引导表示陈述句的宾语从句，
if和whether，whether...or not引导表示“是否”的一般疑问句的宾语从句。
He told me (that )he would go to college the next year.
他告诉我他明年上大学。
I don’t know if/whether there will be a bus any more.
我不知道这里是否会继续有公交车了
(二)关联代词
连接代词主要有who,whom,whose,what,whoever,whomever,whosever,whatever,whichever等。
连接代词一般指疑问，但what,whatever除了指疑问外，也可以指陈述。
Do you know who has won Battlefield3 game?
你知道是谁赢得了战地3的游戏么?
(三)关联副词
连接副词主要有when,where,why,how,whenever,wherever,however等.
He didn’t tell me when we should meet again.
他没有告诉我什么时候我们能再见面.
注：宾语从句通常跟在动词后面。
学习宾语从句要抓住三要素：引导词、语序和时态。
一、引导词
1.从句为陈述句，常选择引导词that或将that省略，直接与主句相连。
2.从句为一般疑问句，常选择引导词if或whether。在 whether … or not 结构中不能用 if 替换。
3.从句为特殊疑问句，常选择what,when,where,which,who,how等疑问代词、疑问副词作引导词。 注意：当who为主语时，句式为：who+谓语+其他。
从句的引导词有很多，如：say, think, wish , hope, see, believe, agree, expect, hear , feel等。
二、判断时态情况
1.主句是一般现在时，从句为各种时态。
2.主句是一般过去时，从句为各种相应过去时态。 注意：从句描绘客观事实，用一般现在时。
3.关系代词：that，who，whom,whose,which
: 1. The teacher told the children that the sun____ round.
was B. is C. were D. are
2. I believe that our team____ the basketball match.
win B. won C. will win D. wins
答：选B，动词reach后接宾语从句，从句缺少宾语，where不可，which引导宾语从句时表疑问含义“哪一个…”而此句中并非疑问含义，不知道哪一座庙宇，而是用what从句表陈述含义，意“过去的一座旧庙宇”;temple后为对其修饰的定语从句，用关系代词which代替，并在从句中作动词used的宾语，use sth. as…“把…用作…”。
宾语从句用作宾语。如：
Do you know where he lives
定语从句相当于一个形容词，用于修饰前面的名词。如：
The student who answered the question was John. 回答问题的学生是John.
This is the man whom he is looking for.
三、宾语从句的用法
1.that引导宾语从句无意义，不充当句子成分常省略。但下列情况除外：
①.介词宾语从句的that不能省略。
②. and连接的两个从句，两个从句的that不能省略。
He told me that he had two sons and that they both had gone to college.
③.在动词+it+宾语补足语+宾语从句结构中，that不省略。
I heard it said that he had gone abroad
We found it impossible that he could finish it in such a short time
Whether,if 引导宾语从句：两词可互换，但是下列情形除外：
①.whether从句中有or not
②.whether从句做介词宾语
Everything depends on whether you agree with us
3.许多带复合宾语的句子，宾语从句经常移到句子后部，而用it做形式宾语。结构是：
主语 + 动词 + it + 形容词/名词等宾语补足语 + 宾语从句
We think it wrong that he told a lie to everyone.
①.宾语从句的语序要用陈述句语序。
False: He is wondering when can he finish this difficult job.
Right: He is wondering when he can finish this difficult job.
②. 有时候可以用it 作形式宾语，而把真正的宾语从句放在后面。
Bad: I thought that he could finish this job in just two hours impossible.
Good: I thought it impossible that he could finish this job in just two hours.
③. 带有宾语从句的复合句的否定形式一般是否定主句。
Bad: I think he doesn’t like the English teacher.
Good: I don’t think he likes the English teacher.
④. 主句一般过去时态，从句也要用过去时态;具体细节请看第一部分。
False: He wanted to know why he is crying in the corner.
Right: He wanted to know why he was crying in the corner.
