表示与现在事实相反或对相在情况有所怀疑, as if / though从句谓语用过去式 a. He speaks English so well as if she had studied E——青夏教育精英家教网—

摘要：表示与现在事实相反或对相在情况有所怀疑, as if / though从句谓语用过去式 a. He speaks English so well as if she had studied English in England. b. She looked as if she were ill.

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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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