英语中表示将来时的用法意义有什么不同?be going to do/be about to do/will do/will going to do

问题描述:

英语中表示将来时的用法意义有什么不同?
be going to do/be about to do/will do/will going to do

be going to/be about to/will 都用来表将来时,但细究起来意思稍有不同.
be going to do 将要做(计划好了)
be about to do 正准备去做
will do 将会去做(没有特别计划,只表示动作将会发生,有时也表示愿望)
will going to do 没有这种表达方式,可能是 will be going to,指将会去哪里
几个例句:
Tom's going to spend his vacation abroad.汤姆计划在国外度假.
I was about to call you when you knocked the door.你敲门的时候我正要打电话给你.
I will see you at the airport.我会到机场见你(我们机场见).
Will you marry me in 3 years time?I will.你三年后会嫁给我吗?我会(表示愿意).