7上u1

一般疑问句:有实义动词时,在句首加助动词。 He goes to school by bus.  Doe he go to school by bus?

有系动词或情态动词时,直接把系动词或情态动词提前。He is a boy。 Is he a boy?

特殊疑问句,以疑问词开头,对句中某一成分提问的句子叫特殊疑问句。常用的疑问词有:what who whose which when where how why等。

What are you doing now?

Who is he?等等

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