賓語從句可以分為三類
（1）.動詞的賓語從句
1.1 大多數(shù)位于動詞后面
Eg：I hope you can join us in the game.
1.2 有些是“動詞+副詞”后
Find out / point out / figure out / turn out/ figure out
Eg： Can you figure out what the poet really means in this poem?
1.3 有些動詞短語后面
Make sure / make up one’s mind / keep in mind
Eg; we should keep in mind that sports can be a great boost to our health.
(2) it 作形式賓語代替賓語從句
第一類動詞; find/ feel/ think/ consider/ make / believe/ guess/ suppose /assume等后面有賓語不足語時，需要用it 作形式賓語而將that引導(dǎo)的真正的賓語從句后置。
Eg： I think it necessary that we do some sporting.
第二類動詞 帶賓語從句時需要在從句前面加it。
這類詞：hate / like/ dislike/ appreciate/ depend on/ see to /
Eg: I hate it when they talk without considering other’s feeling.
但是如果賓語從句是WH-類引導(dǎo)的，其后面有to be 短語作賓語補(bǔ)足語，不可以用it 代替。
We all consider what you said to be unbelievable. (right)
We all consider it to be unbelievable what you said .(wrong)
(3) 形容詞后的賓語從句
Adj: sure / certain/ glad/ pleased/ happy / afraid / sorry 等等。
Eg; I am not sure whether you will come or not.

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