一、指代不同
1、stop to do sth:停下来干某事。
2、stop doing sth:停止做某事。
二、侧重点不同
1、stop to do sth:to do是stop的状语,表示目的,是要开始做的事情。
2、stop doing sth:doing是stop的宾语,是要停止的动作。
三、引证用法不同
1、stop to do sth:stop的基本意思是“停止,止住”,指动作、运动、活动或某项进程的中止,或运动中的物体的中止,有短期或突然停止的意味。
2、stop doing sth:stop可用作及物动词,也可用作不及物动词。用作及物动词时,接名词、代词、动名词或what从句作宾语,用动名词作宾语时其前可加名词、代词的属格或宾格表示动名词的逻辑主体。
1、stop to do停下来去做另一件事
I stop to have a rest.
She stops to listen to the teacher.
She stopped to talk.
We stop to have dinner.
They stop to play a game.
2、stop doing停止正在做的事
we stopped talking when the teacher came in.
Stop playing !Let's begin our class.
Stop smoking!It's forbidden.
stop playing games.you'd better do your homework first.
I stopped riding when I met a friend.
1.不定式作动词tell,show,understand,explain,teach,learn,advise,discuss,ask,decide,woder,find out等的宾语时,前方常带引导词how,what,whether,where,when,who,但是why后加不带to的不定式
He showed us how to do the work.
他给我们展示了怎么做这项工作。
此用法中的不定式的逻辑主语一定要与句子的主语一致,否则就要用宾语从句。
2.不定式在介词but,other than后方,当but前有实义动词do的形式出现,后方要省略to。
We could do nothing but wait.
We had no choice but to wait.
我们别无选择,只好等了。