误: If it is true or not, I can’t tell.
3. whether可以引导带to的不定式,if则不能。如:
正: I don’t know whether to accept or refuse.
误: I don’t 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.
考点:考查宾语从句
【北京市朝阳区2016届高三第二次(5月)综合练习】______ made the dining room extra special is its polished wooden floor.
A. What
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