1. 在句子中起賓語作用的從句叫做賓語從句。賓語從句的引導詞和主語從句的引導詞相同。賓語從句可以作及物動詞的賓語，作短語動詞的賓語，介詞的賓語。

2. 賓語從句：短語動詞

Please go and find out when the train will arrive. 請去弄清楚火車什么時候到。

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

老師指出湯姆學習不夠努力。

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

3. 賓語從句：及物動詞

Everybody knows that money doesn’t grow on trees. 誰都知道錢不是長在樹上。

Have you decided where you will go for a holiday? 你有沒有決定到什么地方去度假?

4. 賓語從句：介詞的賓語

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

我對他們下一步打算做什么很感興趣。

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

這對雙胞胎姐妹的區別，僅僅在于其中一個比另一個稍胖一點。

I am interested in what she is doing. 我對她做的事感興趣。

5. 賓語從句：否定的轉移

有些表示思想和感情的動詞之后的賓語從句中的否定式可以注意到這些動詞之前。

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

我想你不習慣這種飲食。

I didn’t expect she would pass the entrance examination. = I expected she wouldn’t pass the entrance examination. 我以為她不能通過入學考試。

6. 虛擬語氣：賓語從句

一些含有假設、猜想、建議等意思的動詞后面的賓語從句要用should+原形動詞結構,should往往可以省略。這類動詞有: advice, arrange, command, demand, desire, insist, order, propose, require, request, suggest等。

I suggested that he study harder. 我建議他用功一些。(這一題要特別注意：為什么study用原形。)

I insisted that he (should) go. 我強調他應當去。

7. 賓語從句的省略

引導賓語從句的that之后接的從句不長時，可以省略。如果that后面的賓語從句較長時，that不能省略。

I hope (that) you’ll be fine soon. 我希望你盡快康復。