大家好,今天小六子来为大家解答以下的问题，关于be to do 和be about to do的区别，be to do这个很多人还不知道，现在让我们一起来看看吧！

1、be about to do:表即将做某事． e.g The plane is about to take off.但不能与时间状语连用,不能说I am about to do my homework tomorrow.只能和when从句连用I was about to do my homework when my father came in.。

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