引导名词性从句
用于引导名词性从句（主要是引导主语从句和宾语从句），其意相当于anything that或everything that。如：
Whatever she did was right. 她做的一切都是对的。
He does whatever she asks him to do. 她要他做什么，他就做什么。
I will just say whatever comes into my mind. 我想到什么就说什么。
