两者都有为了什么之意. 但for 的词性相对于in order to来说比较浅,比如go to bed for sleep ,buy something for supper,等等.它后接名词或动名词,或分句. 而in order to目的性比较强,指为了什么而作某事,如In order to pass the exam ,I should study very hard . I got up early in order to get on the bus , in order to 后接动词原形.