Question

be busy doing与be busy todo有什么不同？

Answer 1

be busy to do sth.和be busy doing的区别：含义不同、用法不同、侧重点不同

一、含义不同

be busy to do sth.

不是be busy to do sth，而是be too busy to do sth：太忙以至于不能做某事。

be busy doing

忙于做（某事）。

二、用法不同

be busy to do sth.

be too busy to do sth包含too...to...的句型，表示太怎么样以至于。

I'll be too busy to come to the meeting.

我太忙了不能到会。

be busy doing

be busy doing后接的动词用成v.ing的形式。

He is busy doing his homework.

他正忙着做家庭作业。

三、侧重点不同

be busy to do sth.

表示一个目标

be busy doing

表示正在做某事的一个状态

Answer 2

be busy doing something意思是“忙于做某事，而be busy to do something意思是“忙着去做某事”。

Answer 3

be busy doing ...意思是“忙于做（某事）”，分词短语 doing ... 充当伴随状语。没有 be busy to do ... 的表达方式。