名词性从句作主语：

名词性从句作主语：

句子不可以作主语，一定要变成名词性从句作主语。

He doesn't study makes me angry.(wrong)

That he doesn't study makes me angry.(right)

名词性从句包括：主语从句，宾语从句，表语从句，同位语从句。

名词性从句一共有三种：

（1）that 从句

（2）whether从句

（3）疑问词所引导的从句

分项说明：

（1）that从句：任何一个主语起首的句子前面冠以that，即成that从句。

（2）whether从句：本从句是由可用yes／no回答的问句变化而成，这种可用yes／no回答的问句喂一般疑问句。

a.问句有be动词时：主语与be动词还原，前面冠以whether。

Is he happy?

Whether he is happy.

b.问句有一般助动词（can，will, may, should, ought to, must, have）,主语与助动词还原，前面冠以whether。

Can he do it?

Whether he can do it .

c.