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连接词——语序——时态
Are you ready?
连接代词和连接副词
引导的宾语从句
We use a question word to introduce an object clause that expresses a wh- question. The word order in the clause should be the same as that in a statement.
Tip:
Whom is an object pronoun. We can use who instead of whom.
pron. 谁(宾格)
1. I wonder what I should do.
2. Daniel does not know whom he should talk to.
3. Sometimes we forget when we should stop.
4. I do not understand why they are so strict with me.
5. I do not know how I should deal with the problem.
连接词
从句来源
连接词
备注
陈述句
that
口语或非正式文体中常省略
一般疑问句
if / whether
特殊疑问句
连接代词：who; whom; whose; which; what 等
在句中担任主、宾、定或表语。
连接副词：when; where; why; how等
在句中担任状语
if或whether连接宾语从句，由一般疑问句转化而来，常放在ask, see, know, wonder, find out等动词/组后。口语中多用if。
1. The old woman asked me if I knew the way to the hospital.
2. — Is Peter there? — Hold on, please. I’ll see if I can find him for you.