stop to do和stop doing

当动词 “stop” 后跟动词-ing 时，动词-ing 描述的是要被停止的动作。当动词 “stop” 后跟不定式 “to do” 时，这表示要停下正在做的动作，去做另一个动作。“Stop to” 后接的动词是要去做的动作。

1.to do 是不定式，经常表示“将要发生的”。doing 是现在分词，表示“正在发生，同时发生”。

stop to do sth. 停止（某事）去做另一件事；stop doing sth. 停止做某事

2.动词 “stop” 后可跟动词-ing 形式，即 “doing”，或不定式 “to do”。这被称作动词模式（verb pattern）。具体应使用哪个动词模式要根据说话者的意思而定。

1. Stop doing = 停止做某事

When stop is followed by an ING verb, it is the activity in the ING verb which is stopped.当动词 “stop” 后跟动词-ing 时，动词-ing 描述的是要被停止的动作。

John has finally stopped smoking. You won't see him doing it any more.

After about an hour, they stopped playing football and rested.

She's stopped making that mistake now and her language is much better.