1、stop to do sth 指停下来去做某事。

2、stop doing sth 指停止做某事。

3、stop sth 阻止……。

4、stop ...from ( doing) sth 阻止……做……。

5、He is tired ,he has to stop to have a rest 。

6、The students stopped talking when the teacher came into the classroom .

7、The police stopped the car .

8、We should stop the children from playing with fire .