get ready for\be ready for get ready to\be ready to 讲析

get ready for\be ready for get ready to\be ready to 讲析
(1)be ready for sth/v-ing 与 get ready for sth/v-ing
(2)be ready to do sth 与 get ready to do sth
的区别和解释.
希望会让笨笨的我懂啦~
老师说，一个是“为（做）某事准备好的”一个是“为（做）某事而准备”，