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引导词 1.从句为陈述句,常选择引导词that,that引导宾语从句无意义,不充当句子成分常省略。例句:He told us (that)they would help us through the whole work. 2.从句为一般疑问句,常选择引导词if或whether,表示“是否”。在 whether … or not 结构中不能用 if 替换。例句:I don't know if there will be a bus any more. 3. 从句为特殊疑问句,常选择what,when,where,which,who,how等的疑问代词、副词作引导词。例句:He didn't tell me when we should meet again. (责任编辑:admin) |