什么时候whatever=no matter that 怎么分别.有什么特点.

whatever与no matter what的区别。
1．no matter what 只能引导让步状语从句“无论什么”，“不管什么”，,但whatever既可引导让步状语从句, 还可引导名词从句。
Don”t trust him, no matter what he says.无论他说什么，都别信。(让步状语从句)
Wherever you go , whatever you do , I will be right here waiting for you .无论你走到哪里，无论你做什么，
(让步状语从句)
Whatever you do，do it well (让步状语从句)
2．whatever作连接代词引导名词从句:主语从句、宾语从句,意思是“所……的任何事情”。如:
Whatever she did was right. Whatever she did was right. 她所做的一切都是对的。(主语从句)
You can take whatever you like. 你喜欢什么就拿什么吧。(宾语从句)
3．whatever作连接形容词,意为"无论什么样的"。应当注意, 此用法的whatever必须同其被修饰的词一起放在从句前引导从句。如:
I can do whatever work I can find.我可以做我能找到的任何工作。
Whatever difficulties we meet, we can work them out.无论遇到什么困难，我们都能解决它们

在让步状语从句中,两者是相同的意思.不过whatever还可以放在句中,no matter what只在句首.
I'll do whatever you tell me.
No matter what(=Whatever) you do,I'll be on your side.