查字典中考网整理了关于2020年中考英语知识点之过去完成时的概念及结构,希望对同学们有所帮助,仅供参考。
概念:表示在过去某一时间或动作之前已经发生或完成了的动作,即过去的过去( past-in-the-past )。
构成:助动词 had + 过去分词,其中 had 通用于各种人称。
They had already had breakfast before they arrived at the hotel.在到达旅馆之前,他们已经吃过了早饭。
She had finished writing the composition by 10:00 this morning. 今天早晨10点之前,她已经写完了作文。
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