201212培优八年级.docx

2012年下学期八年级培优英语资料语法专题 过去进行时一过去进行时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，如： I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。 They were waiting for you yesterday.他们昨天一直在等你。 过去进行时的构成：肯定形式：主语+was/were+V-ing否定形式：主语+was not (wasnt)/were not (werent)+V-ing疑问形式：Was/Were+主语+V-ing。基本用法：1.过去进行时表示过去某一段时间或某一时刻正在进行的动作。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 sb. did sth等时间状语从句，如： What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？ I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。 I was cooking when she knocked at the door. 她敲门时我正在做饭。 2. when后通常用表示暂短性动词，while后通常用表示持续性动词，因此它所引导的状语从句中，谓语动词常用进行时态，如： When the car exploded I was walking past it.= While I was walking past the car it exploded. 3.when用作并列连词时，主句常用进行时态，从句则用一般过去时，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。如： I was walking in the street when someone called me. 我正在街上走时突然有人喊我。 4. when作并列连词，表示“（这时）突然”之意时，第一个并列分句用过去进行时，when引导的并列分句用一般过去时。如： I was taking a walk when I met him. 我正在散步，突然遇见了他。We were playing outside when it began to rain. 我们正在外边玩，这时下起雨来了二过去进行时和一般过去时的区别一）一般过去时叙述旧事，过去进行时描述背景。 、一般过去时 ）叙述过去状态、动作或事件 He went to Beijing the other day.（带具体时间） ）表示过去的习惯 a) would ,used to与过去时 would 表间断性不规则的习惯，常带频率时间 used to 表一贯性有规律的习惯 They used to meet and would sometimes exchange one or two words. He smoked a lot two years ago. （过去行为） She isnt what she used to be. (今昔对比) ）表示过去的经历，平行动作，依此事件用一般过去时。 He sat there and listened to the radio.(依此发生) B. 过去进行时 表示在过去某阶段或某一时刻正在发生 What were you doing at 8:30 last night? (过去某时刻正在发生) 二）过去进行时与一般过去时的区别 A. 进行时表某一行为的“片断”一般时表示行为的“整体”和存在的状态。 I was reading the book at that time. (未读完，“读”的片段) I read the book yesterday. (已读完，表整个“读”) B、一般持续时间状语多与进行时连用 It was raining all night.(优先用was raining ,rained 为持续动词，故也可使用) He was writing a letter the whole of afternoon. (短暂动词与持续时间连用，表反复，连续发生，不可用一般过去时) C、while 时间状语从句中用短暂动词时只能用进行时。 例：He broke a chair while he was jumping up and down. D、While 所在主从句动作大致持续相等时主从句一般都用进行时，但若是持续动词可都用一般过去时，两个动作一长一短时短的用一般时，长的用进行时。 I was cooking the dinner while he was playing the piano.(平行) I cooked the dinner while he played the piano. I saw him while I was walking to the station. 三）英语中有四类动词一般不用进行时（不用现在进行时和过去进行时） 1)表心理状态、情感的动词，如love ,hate ,like ,care ,respect ,please ,prefer ,know 等，若用进行时则词意改变。 Im forgetting it . (=beginning to forget ) 2)表存在、状态的动词，如appear ,exist ,lie ,remain ,stand ,seem等 3)表感觉的动词，如see ,hear ,feel ,smell ,sound ,taste等. 4)表一时性的动词，如accept ,allow ,admit ,decide ,end ,refuse ,permit ,promise等。 三.过去进行时练习一) 选择题。1. I _ cooked a meal when you _ me.a. cooked, were ringing b. was cooking, rangc. was cooking, were ringing d. cooked, rang2. He said he _ to draw a plane on the blackboard at that time.a. tries b. tried c. was trying d. will try3. While she _ TV, she _ a sound outside the room.a. was watching, was hearing b. watched, was hearingc. watched, heard d. was watching, heard4. They _ a football game from 7 to 9 last night.a. were watching b. watch c. watched d. are watching5. What book _ you _ when I _ you at four yesterday afternoon?a. did, read, was seeing b. did, read, sawc. were, reading, saw d. were, reading, was seeing6. It was Friday evening. Mr and Mrs. Green _ ready to fly to England.a. are getting b. get c. were getting d. got7. 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, was8. 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 passing9. We _ for tom at ten last Sunday. He often kept us _.a. were waiting, waiting b. were waiting, wait c. waited, waiting d. waited, wait10. 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二) 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 age?19. 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) fish