it做强调时的用法

1.强调句：it is(was,were)+强调部分+that（who）+剩下的句子
EG：xiaoming bought a pen yesterday.
强调xiaoming：it was xiaoming who bought a pen yesterday.
强调：yesterday：it was yesterday that xiaoming bought a pen.
注：只可用that，who，其他不能用！
2.作形式主语。
It is not easy to finish the work in two days.
It is no use crying over spilt milk.
It is as pity that you didn’t read the book.
3.作形式宾语。
I think it no use arguing with him.
I found it very interesting to study English.
He made it clear that he was not interested in that subject.
没有it做谓语的用法

Not until he came in did he know what had happened. （倒装句）直到他进来他才知道发生了什么事。
It was not until he came in that he knew what had happened. （强调句)

主语it is a cat.
谓语就做不了了，只有动词能做谓语咯
宾语i like it .

主语：It is a nice day.

谓语：it做不了谓语，谓语一般都是动词

宾语：I like it.

强调句式的用法：

由It's ....that/who....构成，中间的关系词必须是that/who，没有其他词的可能性。

It's ....th