点击免费领取中考核心考点资料！

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.