on the apoint of和 be about to do ,be going to do ,be to do 区

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/28 23:57:08

on the apoint of和 be about to do ,be going to do ,be to do 区别?
打错了,是on the point of

on the point of 即将,正要;就要...的时候
They were on the point of leaving when the phone rang.他们正要离开,这时电话响了.
be about to do 将要,正打算
They were about to leave when the phone rang.他们正要离开,这时电话响了.
上述两者意思相同,只是第一个是介词短语,第二个是动词短语
be going to do 1）如果主语是人,那它的意思是：打算好了做某事
2）如果是物作主语,那它的意思是：将要...
It is going to rain soon.要/快下雨了.
be to do 是按计划或安排要做的事,以及将来一定要做的事
We are to gather at the school gate at 8 tomorrow morning.我们订于明早8点在校门口集合.
This is to take place some day.这事总有一天会发生.

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