过去进行时(已改精讲).ppt

过去进行时,The Past Continous Tense,基本概念：过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。基本结构 主语+was/were+doing+其他内容 注:doing 就是现在分词，词形变化与现在进行时相同,V-ing 变化规则：1）一般加 ing.如:play-playing 玩 watch-watching 看2）以不发音的e 结尾,去e 加ing.如:take-taking 拿 make-making 做 come-coming 来 live-living 居住3）重读闭音节，末尾只有一个辅音字母，先双写再加ing。如：run-running 跑 cut-cutting 切 swim-swimming 游泳sit-sitting 坐 get-getting 获得 shop-shopping 购物 stop-stopping 停止 win-winning 赢 put-putting 放 forget-forgetting 忘记 begin-beginning 开始,常用的时间状语-判断标志,this morning,the whole morning,all day yesterday,at that time from nine to ten last evening,when,while,just now，at 7 p.m.last night|yesterday,句 型 变 化,肯定句：主语+was/were+doing+其它 否定句:主语+was/were+not+doing+其它 一般疑问句:Was/Were+主语+doing+其它 特殊疑问句:特殊疑问词+was/were+主语+doing+其它,1.I was singing songs yesterday morning.否定句：_一般疑问句：_2.They were drawing pictures when the teacher came in.否定句：_一般疑问句：_3.She was washing the window when the telephone rang.否定句：_一般疑问句：_,按要求转换下列句型。1.We were having a PE class at four yesterday afternoon.（改为否定句）We _ _ a PE class at four yesterday afternoon.2.Kate was reviewing her lessons at eight last night.（改为一般疑问句，并做肯、否定回答）_ Kate _her lessons at eight last night?_,she _._,she _.,其 它 用 法,1.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【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。能否让我搭一下车。,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,continually等副词连用。如：（1）、They were always quarrelling.他们老是吵架。（2）、My father was always smoking when he was young.,3.动词be的过去进行时也可表示过去一时的表现或暂时的状态。比较：He was friendly.他很友好。(指过去长期如此)He was being friendly.他当时显得很友好。(指当时一时的表现),S1:What were you doing while Li Jie was getting ready to go out?S2:I was sleeping while Li Jie was getting ready to go out.S1:What were you doing while she was tavelling on the underground?S2:I _ while she was travelling on the underground.,While用法：表示在过去的某个时间，前后两个动作是同时进行的。,如果主要动作和背景动作都是延续的或同时发生的，那么主从句的动词都可用过去进行时,Practice,When和while用法：描述一件事发生的背景；一个长动作发生的时候，另一个短动作发生。My brother fell while he was riding his bicycle.It was raining when they left the station.,短,短,长,长,过去进行时常与when,while连用，意思是当之时。while后面一般跟延续性动词，常用进行时；when后面既可跟延续性动词，也可跟瞬间动词，常用过去式。,一般过去时与过去进行时的区别,1、一般过时往往表示某一动作已经完成，而过去进行时却表示动作在持续或未完成。比较：She wrote a letter to her friend last night.她昨晚给朋友写了封信。(信写完了)She was writing a letter to her friend last night.她昨晚一直在给朋友写信。(信不一定写完),2、一般过去时表示只做一次动作，而过去进行时却表示动作反复地进行。如：She waved to me.她朝我挥了挥手。She was waving to me.她一直朝我挥手。,3、句中有a moment ago之类的短语一般用一般过去时。4、句中有at this time last Sunday,from 8 to 9 yesterday 之类的状语一般用过去进行时。过去进行时可以用来代替一般过去时，表示更为偶然而非预定的动作：I was talking to Tom the other day 那天我跟汤姆聊天来着。,典型的例子,1)Mary _ a dress when she cut her finger.A.made B.is making C.was making D.makes 答案C.割伤手指是已发生的事情，应用过去时。同 时，when表时间的同时性，玛丽在做衣服时提供事情发生的背景，因此用过去进行时。,2)As she _ the newspaper,Granny _ asleep.read；was falling B.was reading；fell C.was reading；was falling D.read；fell 答案B.句中的as=when,while，意为当之时。描述一件事发生的背景时，用过去进行；一个长动作发生的时候，另一个短动作发生。句意为 在她看报纸时，奶奶睡着了。句中的 fell(fall的过去时)，是系动词，后跟形容词，如：fall sick。,用所给动词的正确形式填空：Do you know what they _(do)this time yesterday?They _(have)supper when we _(go)into the room.It _(rain)from 7 to 9 last night.When she _(arrive)I _(telephone)Harry.What _ you _(do)yesterday at 7 pm?When I _(go)downstairs(楼下),they _(eat)breakfast.When we arrived,she _(make)some fresh coffee.I broke a glass,while I _(cook)the dinner.,按要求转换下列句型。1.We were having a PE class at four yesterday afternoon.（改为否定句）We _ _ a PE class at four yesterday afternoon.2.Kate was reviewing her lessons at eight last night.（改为一般疑问句，并做肯、否定回答）_ Kate _her lessons at eight last night?_,she _._,she _.,3.He ran in the park.（用at this time yesterday改写）He _ _in the park at this time yesterday.4.They were playing computer games at nine last night.（对划线部分提问）_ _ they _ at nine last night?5.I was reading a novel at three yesterday afternoon.（对划线部分提问）_ _ you _ at three yesterday afternoon?,填入以下单词的正确形式。1 It was warm,so I _(take)off my coat.2 Jane _(wait)for me when I _(arrive).3 Sue wasnt hungry,so she _(eat)anything.4 My brother came into the bedroom while I _(dance).5 _ he _(lie)on the ground at nine yesterday evening?,took,was waiting,arrived,ate,was dancing,Was lying,Exercise:,6 What _ Jim _(write)when the teacher came in?7 Mike and I _(play)basketball at that time yesterday afternoon.8 My brother _(fall)while he _(ride)his bicycle and hurt himself.9 I first met Lisa three years ago.She _(work)at a radio shop at the time.10.When I arrived at his office,he _ on the phone.(speak),was writing,were playing,fell,was riding,was speaking,Exercise:,was working,根据汉语提示完成句子。1 他们那时不在打排球。They _ _ volleyball at that time.2 当你回来时，他在看电视吗？_ he _ TV when you came back?3 昨天中午他在哪里等你？_ _ he _ for you at noon yesterday?4 当我离开时，他正在做家庭作业。He _ _ his homework when I left.5 正当他们扫地的时候，老师进来了。While they_ _ the floor,the teacher came in.,were playing,Was watching,Where was waiting,was doing,were sweeping,Exercise:,(1)I _ a shower at that time.A.haveB.had C.am having D.was having(2)As she _ the newspaper,Granny _ asleep.A.read;was falling B.was reading;fell C.was reading;was falling D.read；fell(3)Mary _ a dress when she cut her finger.A.made B.is making C.was making D.makes,Exercises,D,B,C,Exercise,I.用所给动词的适当形式填空。1.We _(play)football when it began to rain heavily.2.You should tell what you _(do)at eight yesterday.3.They _(talk)loudly when the teacher came in.4.Last night we _(do)our lessons,when the light suddenly _(go)out.,was playing,were doing,were talking,were doing,went,II.完成句子。1.昨晚我在看电视，我的父亲在看书。Last night I _ _ TV while my dad _ _ a book.2.我们正在下棋，突然电话响了。We _ _ chess _ the phone _.,was,reading,was,watching,playing,was,rang,when,