改疑问句,英语
陈述句变疑问句,可分为两种:
变为一般疑问句:将原句中或原句对应的助动词、be动词或情态动词提前到句首.例如:
Tom is a top student.——Is Tom a top student?
He worked hard at his lessons.——Did he work hard at his lessons?
We should believe in ourselves.——Should we believe in ourselves?
变为特殊疑问句,要加所需要对应意义的特殊疑问词.例如:
They arrived here 【yesterday】.——When did they arrive here?
【They 】arrived here——Who arrived here yesterday?
They 【arrived 】here yesterday.——What happened to them yesterday?
They arrived 【here】 yesterday.——Where did they arrive yesterday?