练习册

  • 练习册
  • 试题
    表示“当--的时候 或“一边--一边 .强调主句的动作和从句的动作同时发生.如: I saw him as he was getting off the bus. 当他下公共汽车的时候我看见了他. The boy was singing a popular song as he was bicycling. 这男孩边骑车边唱歌. As she grew older, she became less active. 当她长大一点的时候.就变得不那么活泼了. 【查看更多】

     

    题目列表(包括答案和解析)

    as if和as though引导的从句所叙述的情况与事实相反时，从句的谓语动词多用虚拟语气。在虚拟语气结构中，用________时态来表示现在的情形；用________时来表示过去的动作或状态；用________时表示正在进行的动作；用________时表示将要发生的动作。

    当as if和as though从句的主语和主句主语一致，且从句中含有系动词be的某种形式时该主语和系动词可以省略。

    例如：John paused as if(he was)expecting Mary to speak．

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    当的介词或副词填空

    The environmental experts are trying to keep animals and plat ________ becoming endangered．

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    当的介词或副词填空

    If we don’t protect pandas, they will die ________.

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    当的介词或副词填空

    Jack and Tome are good friends, and they have a lot ________ common.

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    当的介词或副词填空

    Their talk ends up ________ a joke.

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