<正> whether 和 if 在语法及语义上各有异同,其用法和区别如下:一、whether 可直接用于介词之后,if 则不能。There is some question as to whether we can get there in time.I’m not interested in whether you like the plan or not.I worry about whether I hurt her feelings.It depends(on)whether we’ve got enough money.二、whether 可用于动词不定式之前,if 则不能。