题目内容
20.Tom's mother has to work very late even at weekends,________?( )| A. | has she | B. | hasn't she | C. | does she | D. | doesn't she |
分析 汤姆的妈妈甚至在周末不得不工作到很晚,是吗?
解答 答案:D.根据Tom's mother has to work very late even at weekends,_________?可知这里考查的是反义疑问句,其构成形式为:陈述部分肯定式+疑问部分否定式;陈述部分否定式+疑问部分肯定式,两部分的人称时态应保持一致;在这里前面出现了三单形式has,has to为固定短语"不得不";所以后面的小疑问句应该相应的用助动词does+not,缩写为doesn't,Tom's mother 用she来代替.故选D.
点评 本题考查了反义疑问句的用法.解答时注意其构成形式为:陈述部分肯定式+疑问部分否定式;陈述部分否定式+疑问部分肯定式.
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