过去进行时when和while.docx

Experience is the best teacher. 实践出真知。过去进行时的讲与练一、含义：(1)过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用。(2) 过去进行时表示感情色彩与现在进行时相似，过去进行时也可表示满意、称赞、惊讶、厌恶等感情色彩，也通常与always，forever等副词连用。e.g：They were always quarrelling. 他们老是吵架。二、过去进行时的构成和用法：肯定形式：主语+was/were+doing否定形式：主语+was not (wasnt)/were not (werent)+doing疑问形式：Was/Were+主语+doing。常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week), at+点钟+yesterday (last night / Sunday)，when 和while引导的时间状语从句。三、when/while引导的时间状语从句由when/while 引导的时间状语从句。常用句型：a. 主句（主语 + was/were + doing when + 一般过去时的句子）；表示主句动作发生的过程中，另一个意想不到的动作发生了。We were talking when the teacher came in.=While we were talking, the teacher came in.b. 主句（主语 + was/were + doing while +主语 + was/were + doing ）；主句与从句的动作都是延续性动词或同时发生的，两句都用过去进行时的时候，多用while引导注意：when和while的区别：都意为“当时候”，when引导的句子谓语动词用短暂性动词或延续性动词都行；但while引导的句子谓语动词只能用延续性动词，不能用短暂性动词。when和while 还可作并列连词。when表示“在那时”；while表示“而，却”，表对照关系。The children were running to move the bag of rice when they heard the sound of a motor bike.孩子们正要跑过去搬开那袋米，这时他们听到了摩托车的声音。He is listening to music while his brother is playing computer.他正在听音乐，而他弟弟却在玩电脑。短暂性动词是非延续性动词，即动作一开始便结束的动词，如come, go, begin, start, become, join, end, die, buy, arrive, reach, borrow, lend, get to know等。持续性动词，如learn, study, work, play, wait等练习：用when或者while填空。（1） we were waiting for the bus, a girl ran up to us.（2）I was telephoning a friend Bob came in.（3）Jim jumped on the bus it was moving away.（4）She wanted to stay in bed the others were working in the fields.（5） mother was putting Cathy to bed, the door bell rang.（6）He was listening to music he was riding his bike. （7）They didnt make a model ship I saw him.（8）He is strong his brother is weak.四、一般过去时与过去进行时的用法比较： 一般过去时表示“在过去某个时间发生的动作或存在的状态”，而过去进行时则表示“在过去某个特定时间正在进行的动作”。如：Tom wrote a letter to his friend last night. 汤姆昨晚给他的朋友写了封信。（信写完了）Tom was writing a letter to his friend last night. 汤姆昨晚一直在给他的朋友写信。（信不一定写完，只是强调了动作的延续性）。过去进行时练习一、 用动词的适当形式填空。1. it (rain) when you left school?2. One day, Edison (wait) for a train to arrive, and suddenly a little boy ran to the track(轨道) to play.3. She (make) her dress the whole afternoon.4. When we (arrive) at the village, it (get) dark and it (rain) hard.5. Later his parents found that he (sit) on some eggs.6. When he knocked at the door, my aunt (cook)7. There were some students (sing) and (dance) happily on the playground at that time.8. I ( not write) a letter when the door bell rang.9. We had no classed at that time. We (plant) trees.10. I like basketball while my brother (like) football.11. The farmers (work) in the fields yesterday.12. We saw Lily (pick) apples in the field last Sunday.13. When spring comes, the snow (appear).二、 选择题。（ ）1. I _ a meal when you _ me.A. cooked, were ringing B. was cooking, rangC. was cooking, were ringingD. cooked, rang（ ）2.He said he _ to draw a plane on the blackboard at that time.A. tries B. tried C. was trying D. will try（ ）3.While she _ TV, she _ a sound outside the room.A. was watching, was hearing B. watched, was hearingC. watched, heard D. was watching, heard（ ）4.They _ a football game from 7 to 9 last night.A. were watching B. watch C. watched D. are watching（ ）5. What book _ you _ when I _ you at four yesterday afternoon? A. did, read, was seeing B. did, read, saw C. were, reading, saw D. were, reading, was seeing（ ）6.It was Friday evening. Mr and Mrs. Green _ ready to fly to England.A. are getting B. get C. were getting D. got（ ）7.Lei Feng _ always _ of others when he _ in the army.A. is, thinking, was B. was, thinking, is C. did, think, is D. was, thinking, was（ ）8. A girl _ my pen fall off the table when she _ me.A. saw, passed B. was seeing, passed C. was seeing, passed D. was seeing, was passing（ ）9. We _ for Tom at ten last Sunday. He often kept us _.A. were waiting, waiting B. were waiting, wait C. waited, waiting D. waited, wait（ ）10. He _ his father on the farm the whole afternoon last Saturday.A. helps B. would helpC. was helpingD. is helping（ ）11.While mother _ some washing, I _ a kite for Kate.A. did, made B. was doing, made C. was doing, was making D. did, was making（ ）12.“_ you angry then?” “They _ too much noise.”A. are, were making B. were, were making C. are, made D. were, made（ ）13.He _ some cooking at that time, so _ meA. did, heard B. did, didnt hear C. was doing, heard D. was doing, didnt hear（ ）14.This time yesterday Jack _ his bike. He _ TVA. repaired, didnt watch B. was repairing, watchedC. repaired, watched D. was repairing, wasnt watching（ ）15.His parents wanted to know how he _ on with his new classmates.A. was getting B. gets C. is getting D. will get（ ）16. I saw him_ the rabbit just now. A. to follow B. plays C. playing（ ）17.Tony_ down from his bike when he rode to school.A. falls B. fell C. felt（ ）18. When he was a small child, I often saw him _ down. A. fall B. fell C. felt（ ）19. _Tony was riding his bike, he had an accident. A. When B. While C. A and B（ ）20. The teacher came into the room _we were writing. A. after B. as C. while（ ）21. When Jimmy entered the room, everyone _him. A. was smiling to B. were smiling at C. was smiling at（ ）22.-Why didnt you go to the cinema with us that afternoon? -I _ at the station for my uncle from Beijing. A. was waiting B. have waited C. waited 三、句型转换。1. She saw a cat. It was sitting in the tree. (改为同义句) She a cat in the tree.2. I saw them playing games just now. (改为同义句) I saw that they games just now.3. The man was walking down the street. It began to snow. (合并为复合句)It began to snow the man was walking down the street.4. It started to rain while I was growing some flowers in the garden. (改为同义