语法-一般过去时与过去进行时.doc

Grammar：Tenses 一般过去时与过去进行时一般过去时 Past Simple构成：was, were (be动词)；did时间状语：yesterday; last week; in 1945, at that time; just now; during the war; before; a few days ago; when等基本用法：1）表示过去某个时间发生的动作或情况，或过去习惯性动作，不强调对现在的影响。通常与表示具体的过去时间的状语连用，或有上下文语境暗示。He often came to see me while I was in Shanghai. The window was broken by the naughty boy last week. Sales of CDS have greatly increased since the early 1990s, when people _ to enjoy the advantages of this new technology.A. beginB. beganC. have begunD. had begun我十年前开始学英语，但现在还是说得不够好。I _ to learn English _, but I still _ speak it well enough now.2）在时间、条件、方式或让步状语从句中，用一般过去时代替过去将来时。He promised to buy me a computer if he got a raise.Ex. She told me that she _ leave until I _ back.A. will not; cameB. will not; comeC. would not; cameD. would not; come3) 两个或两个以上在过去接连发生的一串动作用and或but 连接时，用一般过去He bought a watch but lost it. Suddenly, a tall man driving a golden carriage _ the girl and took her away, _ in the woods.A. seizing, disappearedB. seized, disappearedC. seizing, disappearingD. seized, disappearing4）有时可以代替一般现在时，表达一种婉转、客气、礼貌、商量的语气。 I wanted to ask you if I could borrow your bike?Would you mind my sitting here?注意：一般过去时中动词过去时的形式。 begin forget reply hear build cost choose read destroy feel teach break develop leave speak spend write teach stop lead 过去进行时 Past Continuous构成：was/were doing时间状语：at that time, at nine yesterday, when I arrived,或表示一段时间的this morning, yesterday等。基本用法：1）表示在过去某一时刻正在发生的动作。有时没有出现时间状语，要注意上下文的暗示。What were you doing at nine last night?I dont think Jim saw me; he was staring into space. How fast _ he _ when the accident _? (drive, happen)2）表示某一时段持续的动作I was painting a picture yesterday evening. 上周整整一周我都在家呆着。_ The reporter said that the UFO was traveling east to west when he saw it. 3）与always, constantly等频度副词连用时具有一定的感情色彩。My grandfather was always forgetting things. 那时他从来不满足，总是在抱怨。_4）与when 引导的时间状语从句连用，表示“某人正在/正要做这时突然.”相当于and at that timeLily was having a holiday with her family in a wildlife park when she was bitten on theleg by a lion. The students _busily when Miss Brown went to get a book she _in the office. A. had written, left B. were writing, has left C. had written, had left D. were writing, had left 时态区分：一般过去时与过去进行时相同点：动作都发生在过去不同点：一般过去时表示在过去某个具体时间内发生了某一动作，而且动作已经完成，和现在没有关系。 过去进行时表示某一点或某一段时间内正在进行的动作，动作是否结束或完成不清楚。He wrote a book last year. ( )He was writing a book last year. ( ) Ex: Finish the sentences with proper tenses. (一般现在时、一般过去时、现在进行时、过去进行时)1. We _ (not see) the beginning because we _ (be) late. 2. We _ (talk ) quietly at the bar when a fight broke out. 3. He _( have ) breakfast when the crash _ ( report) on TV. 4. Two days ago I _ (fall off) my bike and _ (break) my arm. 5. They _ (stand) there for an hour watching the game. 6. We _ (see) him when he _ (come) to town, but that isnt often. 7. A few years later I _ (drop) medicine and _ (take up) physics. 8. What _ you _ (do) when I _ (call) you last night?9. I _ (see) you in the park yesterday. You _ (sit) on the grass and _ (read) a book.10. John _ (take) a photograph of me while I _ (not look).11. I _ (walk) along the street when suddenly I _ (hear) footsteps behind me. Somebody _ (follow) me. I was frightened and I _ (start) to run. 12. Tom _ (burn) his hand while he _ (cook) the dinner. 13. I _ (cycle) home yesterday when suddenly a man _ (step) out in front of me. I _ (go) quite fast but luckily I _ (manage) to stop in time and _ (not hit) him. 14. Most people _ (learn) to swim when they _ (be) young. 15. Sonia _ (look) for a place to live. She _(stay) with her sister until she finds somewhere. Grammar： 一般过去时与过去进行时Keys: Bbegan, ten years ago, cantCDwas, driving, happened I was staying at home all last week.He was never satisfied at that time. He was always complaining. D书是去年写的，而且已经写完了。书是否写完了不清楚。Ex: Finish the sentences with proper tenses.1. didnt see, were 2. were talking3. was having, was reported 4. fell off, broke5. stood 6. see, comes 7. dropped, took up 8. were doing, called 9. saw, were s