过去进行时1.概念：表示过去某段时间或某一时刻正在发生或进行的行为或动作。2.时间状语：at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时 间状语等。yesterday ,last ,ago, before, in+年或月,on+日, just now(或者a moment ago)3.基本结构：was/were+doing 4.否定形式：was/were + not + doing. 5.一般疑问句：把was或were放于句首。主要表示在过去的某个时间点上正在发生、进行的动作。由于它的定义是表示在过去的某个时间点上正在发生、进行的动作，所以，句子常带有一个表示“过去某个时间点”的状语。这个状语可能是短语，词组，或是一个从句。也可能是通过上下文来表达这层意思。过去进行时主要用于下面的情景中：1）表示在过去某时刻正在进行的动作，例如：At this moment yesterday, I was packing for camp.昨天这个时候，我正在收拾东西去露营。When I came to see her last time, she was writing an article.上次我来看她的时候，她正在写一篇文章。What were you doing at eight last night 昨晚八点钟你在做什么2）用于故事的开头，交代故事发生的背景情况。过去进行时所描述的动作是“正在进行”，所以，在这种情景中用“过去进行时”可以给读者一种“动感”，从而能使文章更加生动活泼。例如：One night, he was typing in his study . Suddenly , a man broke into his house and cut off the electricity .一天晚上，他正在书房里打字。突然，一个人闯进屋来，切断了电源3)（仅限少数动词）表示在过去的未来时间要发生的动作。例如：When National Day was coming near , they began to make a plan for the holiday .国庆节即将来临的时候，他们开始制订度假计划。She told me that she was going to Hainan for her holiday. 她告诉我她将去海南度假。My friend said to me that he was lunching with one of his customers that day .我朋友对我说，他今天要与他的一位客户一块儿吃午饭。We left there when its getting dark. 天快黑的时候，我们离开了那儿。 6.用过去进行时表示现在，主要是为了使语气委婉、客气。如：I was wondering if you could give me a lift. 我不知你能否让我搭一下车。We were hoping you would stay with us. 我们很希望你能跟我们住在一起。How much did you want to spend, sir 先生，您打算花多少钱注：一般过去时也有类似用法，但比较而言，用过去进行时显得更客气，更不肯定。 过去进行时练习题一、用动词的适当形式填空1. While we _ (wait) for the bus, a girl _ (run) up to us.2. I _ (telephone) a friend when Bob _ (come) in.3. Jim _ (jump) on the bus as it _ (move) away.4. We _ (test) the new machine when the electricity _(go) off.5. She _ (not want) to stay in bed while the others _ (all, work) in the fields. 6. While mother _ (put) Cathy to bed, the door bell _ (ring).7. As I _ (walk) in the park, it _ (begin) to rain.8. Even when she _ (be) a child she _ (already, think) of becoming a ballerina (芭蕾舞演员).9. It was quite late at night. George _ (read) and Amy _ (ply) her needle when they _ (hear) a knock at the door.10. There _ (be) a group round the fire when they _ (reach) it. An old woman _ (sit) on the ground near the kettle; two small children _ (lie) near her; a donkey _ (bend) his head over a tall girl.11. I _ (have) my breakfast at half past six yesterday morning.12. Mary _ (go) over her lessons from six to seven last night. John and peter _(do) the same thing.13. What _ you _ (do) at that time We _ (watch) TV.14. Was your father at home yesterday evening Yes ,he was. He _ (listen) to the radio.15. They _(not make) a model ship when I saw him.16. _ they _ (have) a meeting at 4 yesterday afternoon No, they _. They _ (clean) the classroom.17. _ it _(rain) when you left school Yes, it _. (No, it _)18. What _ your father _ (do) when he was your age19. One day, Edison _ (wait) for a train to arrive, and suddenly a little boy ran to the track(轨道) to play.20. He asked me if I _ (go) fishing that afternoon.21. The three of them were in a hurry because their plane _ (leave) in five minutes.22. In a letter, john told us that he _ (come) to china next month.23. When the bell rang, jenny _ (wait) in her seat.24. She _ (make) her dress the whole afternoon.25. While my father _ (look) through the evening paper, he suddenly _ a cry.26. When I _ (come) in the room, he _ (see) me, for he _ (read) something27. When we _ (arrive) at the village, it _ (get) dark and it _ (rain) hard.28. I _ (know) you _(wait) for me here.29. One day a little monkey _(play) in a tall tree. A mother crocodile(鳄鱼) _ (look) for food near the bank. 30. What _ your father _ (do) yesterday evening He _ (study) at the evening school.31. Later his parents found that he _ (sit) on some eggs.32. When he knocked at the door, my aunt _ (cook)33. The students _ (sing) and _ (dance) happily on the playground at that time.34. I _ (write) a letter when the door bell rang.35. We had no classed at that time. We _ (plant) trees.二、 选择题 _ cooked a meal when you _ me.a. cooked, were ringing b. was cooking, rang c. was cooking, were ringing d. cooked, rang said he _ to draw a plane on the blackboard at that time.a. tries b. tried c. was trying d. will try she _ TV, she _ a sound outside the room.a. was watching, was hearing b. watched, was hearingc. watched, heard d. was watching,