是begin to do还是begin doing 或是都可以?

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是begin to do还是begin doing 或是都可以?

是begin to do还是begin doing 或是都可以?
是begin to do还是begin doing 或是都可以?

是begin to do还是begin doing 或是都可以?
般来说,begin to do和begin doing可以互换,但在以下三种情况下,用to do:
1.主语不是指人,而是it等.如:It began to rain.
2.begin后接表示心理活动的词.如:begin to know
believe,wonder,think等.
3.begin本身是ing形式,为避免重复后接to do
即,beginning to do
P.S
doing 一般有正在做的意思
to do一般有正准备做的意思
所以doing 就是开始做了to do开始要做,还没做

开始做某事,区别如下。
begin / start to do sth
begin / start doing sth.
1) 谈及一项长期活动或开始一种习惯时,使用doing.
How old were you when you first started playing the piano?
你几岁时开始弹钢琴?
2) begin, ...

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开始做某事,区别如下。
begin / start to do sth
begin / start doing sth.
1) 谈及一项长期活动或开始一种习惯时,使用doing.
How old were you when you first started playing the piano?
你几岁时开始弹钢琴?
2) begin, start用进行时时,后面动词用不定式to do
I was beginning to get angry。
我开始生起气来。
3) 在attempt, intend, begin, start 后接know, understand, realize这类动词时,常用不定式to do。
I begin to understand the truth。
我开始明白真相。
4) 物作主语时
It began to melt.

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