will与be going to的用法区别是什么？

will与be going to的用法区别是什么？今天贝贝英语网告诉你。
will和be going to经常可以互换。e.g.
(1) There will be a football match this evening.
(2) There is going to be a film tomorrow night.
(3) I will / am going to do my homework this evening.
只能用be going to 的情况。
A．常译为“准备……”，“打算……”。表示（事先）已经决定或安排要做的事，用be going to，e.g.
(1) What are you going to do tomorrow?
(2) I am going to make a skirt for my daughter.
(3) Are you going to do it all by yourself?
B. 有“明显迹象”预示某事即将（将要）肯定或很可能发生时，一般都用be going to。e.g.(1) Look at the black clouds, it’s going to rain.
(2) Be careful! The boxes are going to fall.
只能用 “will” 的情况。
A.表示“强烈意图、自愿做某事”或坚持要做某事时，用will。e.g.
(1) —Can somebody help me?   —I will.
(2) I will give up smoking. I really will.
(3) Please remember me to your parents. Ok, I will. 
B.表示“客观上的必然性, 与主观的愿望或判断等无关”时用will。（因为有些事情的发生是不以人们的意志为转移的，不是因为某人“准备”、“打算”怎么样就能怎么样，所以不能用be going to。）e.g.
(1) Jane will be twenty next year.
(2) Today is Thursday and tomorrow will be Friday.