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1,whether 有什么用法

1主从,表从,同位从只用WHETHER 2只有WHETHER后直接加to do 不定式 3if/whether....or not whether or not 只存在以上3种形式 4discuss 后只能加whether 5adj.后只能加whether
ggh

whether 有什么用法

2,whether用法详细点

whether和if都可以引导宾语从句,表示“是否”,在口语或间接引语中两者可以互换使用.如:I wonder if / whether I can get some advice from you.
whether和if的用法分析 whether和if都可以引导宾语从句,表示“是否”,在口语或间接引语中两者可以互换使用。如: i wonder if / whether i can get some advice from you. ask him whether / if he can come. 但在有些情况下,whether和if的用法有一定区别。 1. whether引导的从句常可以与连词or或or not直接连用,而if一般不能。如: 正: let me know whether you can come or not. 误: let me know if you can come or not. 2. 当宾语从句提到句首时,只能用whether引导,而不能用if。如: 正: whether it is true or not, i cant tell. 误: if it is true or not, i cant tell. 3. whether可以引导带to的不定式,if则不能。如: 正: i dont know whether to accept or refuse. 误: i dont know if to accept or refuse. 4. whether及其引导的成分可放于介词之后,作介词的宾语,但if不能。如: 正: i worry about whether i hurt her feelings. 误: i worry about if i hurt her feelings. 5. whether可以引导从句,作主语、表语或同位语,而if不能。如: 正: it was uncertain whether he would come. 误: it was uncertain if he would come. 正: his first question was whether tom had arrived yet. 误: his first question was if tom had arrived yet. 正: we must consider the question whether we will take these measures. 误: we must consider the question if we will take these measures.

whether用法详细点


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