Question

what引导什么从句，怎么用

Answer 1

what 引导名词从句（包括主语从句、宾语从句、表语从句、同位语从句)，它在从句中可以作主语、宾语、表语、、定语、宾补。如：
What he said is right. 他说得对。
She is no longer what she used to be. 她不是过去的她了。
They don't know what happened.他们不知道发生了什么。
Are you sure what books he likes reading? 你知道他喜欢读什么书吗？
He knows what people call him. 他知道人们叫他什么。
The question what makes the matter worse has been puzzling me. 是什么使情况更糟了这个问题一直在困惑着我。

Answer 2

what引导名词性从句，如主语从句，宾语从句，表语从句，同位语从句，它在从句中可以作主语、宾语、表语、定语、宾补。

双语例句：

1、Do you know what i did just now?

你知道我刚才做了什么吗？

2、What he said is very improtant.

他说的是非常重要的。

3、That is just what i want.

这就是我想要的。

4、What he said that we won the game makes me happy.

他说我们赢了这场比赛使我高兴。

5、Are you sure what books he likes reading? 

你知道他喜欢读什么书吗？

Answer 3

what 引导的是名词性从句，主要包括主语从句、宾语从句、表语从句、同位语从句四类，what 既起连接作用又在从句中可以做主语、宾语、表语。

Answer 4

引用hsip54的回答：
what 引导名词从句（包括主语从句、宾语从句、表语从句、同位语从句)，它在从句中可以作主语、宾语、表语、、定语、宾补。如：
What he said is right. 他说得对。
She is no longer what she used to be. 她不是过去的她了。
They don't know what happened.他们不知道发生了什么。
Are you sure what books he likes reading? 你知道他喜欢读什么书吗？
He knows what people call him. 他知道人们叫他什么。
The question what makes the matter worse has been puzzling me. 是什么使情况更糟了这个问题一直在困惑着我。

The question what makes the matter worse has been puzzling me. 是什么使情况更糟了这个问题一直在困惑着我。 这个错了 what 后面的句子缺少主语 说明这是一个定语从句 what 不能引导定语从句

Answer 5

三种由what引导的从句都是名词性从句