问高手一个英语将来时的问题be going to dobe to dobe due to dobe about to d

e going to do 计划,安排,准备,打算做某事
be to do即将做某事或应当做某事
be due to do应当做某事
be about to do即将做某事(不能同将来时间连用)
如:I'm going to see my grandparents next Sunday .
The film is to start .
The film is due to start at 6:30 this afternoon .
She was about to leave the room when the telephone rang .
The film is about to start .

safsf

be to do 和 be about to do 都表示将要做什么事，前者客观因素较多，后者主观因素较多。

be going to do 和 be about to do 意思相近，后者在时间上更近，表示正打算做，刚要做。

be due to 是由于...的意思，to在这里是介词，后面通常跟名词或动名词。...