what whatever在从句中的应用

相同点:他们都可以引导名词性从句,在句中可作主语,宾语,表语.
不同点:what 意思是....的事,而whatever意思是任何....的事,有强调之意.
What he had done made his teacher angry.他做的事使老师生气.(what=the thing)
Whatever he had done is for you.他做什么都是为了你.(whatever=anything)

what ,whatever 都可以引导名词性从句，
如 what I said is right 这时 what= the thing that
whatever I said is right. 这时whatever = anything that
另外，whatever还可以引导让步状语从句
whatever I do, he will support me.

有区别，what？