be to do sth.和will do sth.和be about to do sth.有什么不同?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/30 00:16:48

be to do sth.和will do sth.和be about to do sth.有什么不同?

be to do表示一种命中注定会发生的事情
will do 表示一种个人意愿(将会做某事,这个主要和be going to do区分)
be about to do表示即将、马上、眼瞅着要做某事
例句:
1.Two boys were saying goodbye to each other without knowing they were not to meet again.
2.I'll go to London.
3.The telephone rang when I was about to go out.