【正文】 time that I have visited the city. It was the third time that the boy had been late. 1） This/That / It is the first / second time… . that… 結(jié)構(gòu)中的從句部分，用現(xiàn)在完成時。 這是我看過的最好的電影。 This is the best film that I39。ve (ever) seen. 2） This/That / It is the best (worst, most interesting, only ) +名詞 ＋ that” 后面跟現(xiàn)在完成時。 since 的四種用法 1) since +過去一個時間點(diǎn) (如具體的年、月、日期、鐘點(diǎn)、 1980, last month, half past six)。 I have been here since 1989. 2) since +一段時間 + ago I have been here since five months ago. 3) since +從句 Great changes have taken place since you left. 4) It is +一段時間 + since 從句 It is two years since I became a postgraduate student. 他去過北京。 He has been to Beijing. 他到北京去了。 He has gone to Beijing. have /has been … 表示曾到過某地（現(xiàn)在回來了） have /has gone… 表示已經(jīng)到某地去了（現(xiàn)在不在說話處） 4 典型例題 (1) Do you know our town at all? No, this is the first time I ___ here. A. was B. have been C. came D. am ing (2) Have you ____ been to our town before? No, it?s the first time I ___ here. A. even, e B. even, have e C. ever, e D. ever, have e 注意： 非延續(xù)性動詞的否定形式 可以與表示延續(xù)時間的狀語連用。 即動作不發(fā)生的狀態(tài)是可 以持續(xù)的。 （錯） I have received his letter for a month. （對） I haven39。t received his letter for almost a month 典型例題 1. You don?t need to describe her. I ___ her several times. A. had met B. have met C. met D. meet 答案 B. 首先本題后句強(qiáng)調(diào)對現(xiàn)在的影響，我知道她的模樣，你不用描述。 再次， several times 告知為反復(fù)發(fā)生的動作，因此用現(xiàn)在完成時。 ?m sorry to keep you waiting. Oh, not at all. I ___ here only a few minutes. A. have been B. had been C. was D. will be 答案 A. 等待的動作由過去開始，持續(xù)到現(xiàn)在，應(yīng)用現(xiàn)在完成時。 一般過去時的考點(diǎn)分析（考核重點(diǎn)）。 ①表示過去的事情、動作或狀態(tài)常與表示過去具體的時間狀語連用（ 或有上下文語境暗示 ）； 用 于 表達(dá)過去的習(xí)慣；表示說話人原來沒有料到、想到或希望的事 I met her in the street yesterday. He used to smoke a lot. I thought the film would be interesting, but it isn’t. He told me he ________an interesting novel last night . ②如果從句中有一個過去的時間狀語，盡管從句中的動作先于主句發(fā)生， 但從句中的謂語動詞 用過去式。 ③表示兩個緊接著發(fā)生的動作，常由以下詞語連接， 如 but, and, when, as soon as, immediately, the moment… The moment she came in, she told me what had happened to her. He bought a watch but lost it. 5 ?Tom has written a letter to his parents last night. Tom wrote a letter to his parents last night. 句子中如 有過去時的時間副詞 （如 yesterday, last, week, in 1960）時， 不能使用現(xiàn)在完成時，要用過去時。 過去 進(jìn)行時 表示過去某個時間點(diǎn)或某段時間內(nèi)正在發(fā)生的動作。 The boy was doing his homework when his father came back from work. What were you doing at nine last night? The radio _was being repaired _when you called me. what were you doing this time yesterday? W e were working in the lab. 過去完成時考點(diǎn)分析（考核重點(diǎn)） 句中有明顯的參照動作或時間狀語， 這種 時態(tài) 從來不孤立使用 (by、 by the end 、 by the time、 until、 before、 since 后接表示過去某一時間的短語或從句以前發(fā)生的動作。 : By the end of last year, we had produced 20,000 cars. The train had left before we reached the station. It was three years since we had been there. 考點(diǎn)一：表示 “一 …… 就 ”的幾個句型： Hardly / Scarcely / No sooner had + 主語 + 過去分詞 + when / before/ than + 一般過去時 We had no sooner been seated than the bus started. = No sooner had we been seated than the bus started. （注意主謂倒裝） 考點(diǎn)二：表示 “第幾次做某事 ”，主句用過去時， 從句用過去完成時。 That was the second time that she had seen her grandfather. It was 3 years since we had parted。 考點(diǎn)三：表示 未曾 實現(xiàn)的希望、打算 、意圖、諾言等。常用 had hoped / planned / meant / intended/ thought / wanted / expected 等或用上述動詞過去式 接不定式完成式表示即： hoped / planned …