來(lái)源:網(wǎng)絡(luò)資源 2023-03-29 15:52:00
概念:表示在過(guò)去某一時(shí)間或動(dòng)作之前已經(jīng)發(fā)生或完成了的動(dòng)作,即“過(guò)去的過(guò)去( past-in-the-past )”。
構(gòu)成:“助動(dòng)詞 had + 過(guò)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(dá)旅館之前,他們已經(jīng)吃過(guò)了早飯。
She had finished writing the composition by 10:00 this morning. 今天早晨10點(diǎn)之前,她已經(jīng)寫完了作文。
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