來源:網(wǎng)絡資源 2023-02-18 19:31:05
過去完成時的概念與結構
概念:
表示在過去某一時間或動作之前已經(jīng)發(fā)生或完成了的動作,即“過去的過去(past-in-the-past )”。
構成:
“助動詞had + 過去分詞”,其中had 通用于各種人稱。
They had already had breakfast before they arrived at the hotel.在到達旅館之前,他們已經(jīng)吃過了早飯。
She had finished writing the composition by 10:00 this morning.今天早晨10點之前,她已經(jīng)寫完了作文。
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