whether这个词可以做连词,表示 是否
也可以做代词,表示两个中的哪一个
1.whether可以引导宾语从句,表示“是否”如:
I wonder whether I can get some advice from you.
2.whether引导的从句常可以与连词or或or not直接连用,如:
正:Let me know whether you can come or not.
3.当宾语从句提到句首时,可以用whether引导,如:
Whether it is true or not,I can’t tell.
4.whether可以引导带to的不定式,.如:
I don’t know whether to accept or refuse.
5.whether及其引导的成分可放于介词之后,作介词的宾语,如:
I worry about whether I hurt her feelings.
6.whether可以引导从句,作主语、表语或同位语,如:
It was uncertain whether he would come.