1. 在句子中起宾语作用的从句叫做宾语从句。宾语从句的引导词和主语从句的引导词相同。宾语从句可以作及物动词的宾语，作短语动词的宾语，介词的宾语。

2. 宾语从句：短语动词

Please go and find out when the train will arrive. 请去弄清楚火车什么时候到。

His teacher pointed out that Tom hadn't studied hard enough.

老师指出汤姆学习不够努力。

That depends on how you do it. 那得看你怎么做的。

3. 宾语从句：及物动词

Everybody knows that money doesn't grow on trees. 谁都知道钱不是长在树上。

Have you decided where you will go for a holiday? 你有没有决定到什么地方去度假？

4. 宾语从句：介词的宾语

I am curious as to what they are going to do next.

我对他们下一步打算做什么很感兴趣。

The twin sisters differ only in that one is a bit fatter than the other one.

这对双胞胎姐妹的区别，仅仅在于其中一个比另一个稍胖一点。

I am interested in what she is doing. 我对她做的事感兴趣。

5. 宾语从句：否定的转移

有些表示思想和感情的动词之后的宾语从句中的否定式可以注意到这些动词之前。

I don't suppose you're used to this diet. = I suppose you aren't used to this diet.

我想你不习惯这种饮食。

I didn't expect she would pass the entrance examination. = I expected she wouldn't pass the entrance examination. 我以为她不能通过入学考试。

6. 虚拟语气：宾语从句

一些含有假设、猜想、建议等意思的动词后面的宾语从句要用should+原形动词结构,should往往可以省略。这类动词有: advice, arrange, command, demand, desire, insist, order, propose, require, request, suggest等。

I suggested that he study harder. 我建议他用功一些。（这一题要特别注意：为什么study用原形。）

I insisted that he (should) go. 我强调他应当去。

7. 宾语从句的省略

引导宾语从句的that之后接的从句不长时，可以省略。如果that后面的宾语从句较长时，that不能省略。

I hope (that) you'll be fine soon. 我希望你尽快康复。