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aven’t seen the film since last year. He was ill for a week. ? He has been ill for a week. ? She went to the library yesterday. ? She has gone to the library. ? Her parents lived in Shanghai all their lives. ? Her parents have lived in Shanghai all their lives. 15 ? 2. 過去完成時(shí)( Past Perfect) 構(gòu)成: had + 過去分詞 16 用法: 過去完成時(shí)是一個(gè)相對的時(shí)態(tài),總是要以一個(gè)特定的過去時(shí)間為基準(zhǔn)點(diǎn) ……, 。 “過去的過去“。 這一過去時(shí)間用短語、從句或上下文表示或襯托。 ? Mom had prepared the meal before I came home. ? 在我回家之前我媽媽已經(jīng)準(zhǔn)備好午餐了。 ? The plane had taken off before 7 yesterday. ? 昨天 7點(diǎn)前飛機(jī)就啟航了。 ? The film had been on for 10 minutes when I got to the cinema. ? 當(dāng)我到戲院時(shí)電影已經(jīng)開始 10分鐘了。 17 一般過去時(shí)和過去完成時(shí)的區(qū)別: ? 一般過去時(shí)是過去的一個(gè)特定的時(shí)間。而過去完成時(shí)表示這一時(shí)間之前的行動。 ? He knew President was in the next room. ? He knew President had been in the next room. ? He bought a puter when he entered the college. ? He had bought a puter when he entered the college. 18 ? 3. 將來完成時(shí) ( Future Perfect) ? ? 構(gòu)成: will ( shall ) + have done 19 ? 用法: 表示在將來一個(gè)特定時(shí)間之前已經(jīng)完成的動作或行為。 ? 常和 by the end, by the time …. 等時(shí)間狀語連用。 ? I hope we will have pulled through the crisis by the end of this year. ? 我希望今年年底前我們可以度過這個(gè)難關(guān)。 ? By the end of July we will have studied 8 units. ? 7月底我們將學(xué)習(xí)第 8單元。 ? By the time of next year, I have got my bachelor degree. ? 明年的這個(gè)時(shí)候,我將拿到我的學(xué)士學(xué)位。 20 ? 應(yīng)試技巧 1. You should have put the milk in the icebox。 I expect it ____ undrinkable by now. A. became B. had bee C. has bee D. bee 2. By the time you get to Beijing tomorrow, I ____ for Shanghai. A. am leaving B. shall have left C. will leave D. have already left. 3. Ever since the family moved to the suburbs last year, they ____ better health. A. could have enjoyed B. have been enjoying C . had enjoyed D. are enjoying 4. When he hurried to the airport, he found, to his great disappointment, his ti