What 这个词的用法很多,what 可以作为特殊疑问词,引导特殊疑问句,如:
What do you want ?
What colour does he like best ?
What也可以在感叹句中使用
1)What a cute panda!
what引导的三种不同的名词性从句,名词可以在句子中作宾语、主语、表语,那么what引导的名词性从句也就是宾语从句、主语从句、和表语从句了。
一、What引导宾语从句首先理解what的意思,最基本的就是“什么”。……的人/事/物。what引导的宾语从句中,what即是引导词,也在句子中充当句子成分,有一定的意义,what不能够被省略。
1)He has got what he wants.他已经得到了他想要的东西。
2)I believe what he said.我相信他说的话。
3)We have had what we need.我们拥有了我们需要的东西。
二、What引导主语从句由what引导的整个句子做主语,其中what也不可以省略,翻译为……的
1)What we need is time.我们所需要的就是时间。
2)What we can do is waiting.我们所能做的就等待。
3)What they will do hasn’t been decided.我们将要做什么还没有决定下来。
三、What引导表语从句由what引导的整个句子做表语,其中what也不可以省略。
1)That is what I need .那就是我们所需要的(东西)
2)The man is no longer what he used to be.这个男人不再像他从前那样了。
四、判断下列句子从句类型
1)Tell me what you heard.
2)What he said is right.
3)I want to know what you did yesterday morning .
4)What I need is his help.
5)That is what they need .
6)Do you understand what I told you?
https://baijiahao.baidu.com/s?id=&wfr=spider&for=pc&searchword=what%E5%BC%95%E5%AF%BC%E7%9A%84%E5%8F%A5%E5%AD%90