主语

主语是行为和动作的主体，表示什么人，什么事。

主语可以由什么充当呢？

名词作主语

My school is not far from my house.

代词作主语

We like our school very much.

数词作主语

Two plus two is four.

动名词作主语

Being a foreigner is not a handicap.

动词不定式作主语

To see is to believe.

从句作主语

What I mean is to work harder.