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she had to wait 4hours at the airport.(①用特殊疑问句提出一个问题②变成一般疑问句

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she had to wait 4hours at the airport.(①用特殊疑问句提出一个问题②变成一般疑问句
考察特殊疑问句和一般疑问句的区别:
①用特殊疑问句
How long would she wait at the airport?
②变成一般疑问句
Did she have to wait 4 hours at the airport?
解读:
回答特殊疑问句时,不能用yes / no,即问什么答什么,尤其是简略回答.如:
Who is from Canada﹖
Helen (is).
Where's the restaurant﹖
Near the station.
Why do you like koalas﹖
Because they are cute.
一般疑问句是疑问句的一种.它是只用yes(是)或no(否)来回答的句子.其结构是:
系动词be/助动词/情态动词+主语+其他成分
通常回答为:
肯定:Yes,+主语+提问的助动词.
否定:No,+主语+提问的助动词的否定形式.
如:
Are you from Japan﹖
Yes,I am. / No,I'm not.