带do you think的复杂疑问句

先来看例题:

What do you think ____ they should take for tomorrow’s party?

A. that B. /

答案选B。

这是一个“复杂疑问句”。它是由一般疑问句Do you think加上特殊疑问句What should they take for tomorrow’s party构成。这种复杂疑问句中,疑问词总是被移至句首。这类问句是用来征询对方对某事的意见、看法或判断。它的答语要求针对所问的部分作具体回答,而不能只回答Yes或No。故不能用Do you think what they should take for tomorrow’s party?的一般疑问句形式来发问。这一句型疑问词虽被移至句首,但这个疑问词在结构上仍然是宾语从句中的一个成分,而不是主句中的成分,因此,不能选that。

能够用于此句型的还有believe, say, propose, suppose, reck on, imagine等。

有时询问第三者对某事的看法,也可用复杂疑问句:

What time does the letter say he will start?

但know不可用于此句型,如“你知道发生什么事了吗?”不能说:

❌What do you know has happened?

而是要说:

Do you know what has happened?

它的答语可以是“Yes, I do.”或“No, I don’t.”

若要侧重问“什么事发生了”而要求对方作具体回答,就要用复杂疑问句:

What do you think has happened?

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