题目内容
2.While I ___________ TV,the bell rang.( )A. | watch | B. | watched | C. | am watching | D. | was watching |
分析 当我正在看电视的时候,铃声响了.
解答 答案D 过去进行时的结构是:was/were+doing,表示在过去某时刻正在进行的动作.根据"the bell rang"主句用了一般过去时,可知从句要用过去的时态,可以排除A,C;另外根据"While I ___________ TV,the bell rang."可知从句与主句是同时发生的动作,主句的动作是发生在从句动作正在进行的时候,所以要用过去进行时.故选D.
点评 过去进行时和一般过去时经常一个用在从句中,另一个用在主句中,也就是一个动作发生在另一个动作正在进行的时候.
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