题目内容
1.你买这本书多久了?How long have youhad the book?
分析 How long,had the book.
解答 答案:How long,had the book.这里是问多久,是特殊疑问句,用特殊疑问词how long,买的状态发生在过去一直持续到现在,用现在完成时have/has+过去分词,buy买是短暂性动词,不能与how long连用,换成have表示拥有,have的过去分词had,故答案是How long,had the book.
点评 短暂性动词如果用于表示一段时间的现在完成时肯定句中,需要作相应的变化.现将常见的短暂性动词的转化归纳如下.
1.用相应的延续性动词替换短暂性动词.
buy→have borrow→keep put on→wear become→be catch a cold→have a cold come to work→work begin to teach→teach
get to know→know make friends→be friends fall ill→be ill
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