stop sb doing与stop sb from的区别和两者的用法（详细）

stop sb (from) doing sth 表示阻止某人做某事。。from可以省啊。 prevent sb (from) doing sth.也是这样用的 而 keep sb doing sth 表示让某人一直做某事 keep sb from doing sth 才表示阻止默认做某事

stop to do和stop doing的区别
stop to do 停止，中断做某事后去做另一件事。
stop doing 停止做某事。
They stop to smoke a cigarette. 他们停下来，抽了根烟。
I must stop smoking. 我必须戒烟了。
典型例题
She reached the top of the hill and stopped ___ on a big rock by the side of the path.
A. to have rested B. resting C. to rest D. rest
答案：C。由题意可知，她到了山顶，停下来在一个路边的大石头上休息。因此，应选择"stop to do sth. 停下来去做另一件事"。而不仅仅是爬山动作的终止，所以stop doing sth.不正确。

两者意思差不多,只是表达方式不同而已
前者是动名词的复合结构； 后者是和from 连用
如：
She stopped the boy from climbing the tree
= She stopped the boy climbing the tree (口语）
= She stopped the boy‘s climbing the tree (正式文体）
拓展：
She stopped the boy from climbing the tree
=She prevented the boy (from) climbing the tree
=She kept the boy from climbing the tree (from 不可以省）
=She forbade the boy from climbing the tree
=She forbade the boy to climb the tree