动词过去式变化规则课件省公共课一等奖全国赛课获奖课件.pptx

Conversation:How about your last weekend?What did you do during the rest days?第1页普通普通过去过去时态时态第2页什么是普通过去时？什么是普通过去时？动词普通过去时态表示动词普通过去时态表示过去发生过去发生动作、情况或存在状态动作、情况或存在状态。普经过去时态是经过普经过去时态是经过动词时态动词时态改变改变来表现来表现第3页 改变规则改变规则第4页1、普通情况普通情况下在词尾直接加下在词尾直接加ed。如：如：play played work worked 一、规则动词改变第5页2、以以e e结尾结尾动词只加动词只加d.如：如：like-liked love-loved第6页规则动词词规则动词词-ed读音读音说明：说明：1 1、清念清念 /t/t/，即，即 ed ed 在清辅音后面念在清辅音后面念 /t/,/t/,例：例：finishfinisheded help helpeded pass passeded cook cookeded2 2、元浊元浊 /d/d/,即即 ed ed 在元音，浊辅音后面念在元音，浊辅音后面念 /d/,/d/,例：例：borrowborroweded enjoy enjoyeded call calleded mov moveded 3 3、/t/d/t/d/之后念之后念 /id/id/,即即 ed ed 在在 /t/d/t/d/音后面念音后面念 /id/id/例：例：wantwanteded shout shouteded need neededed count counteded第7页3、以、以“辅音字母辅音字母+y+y”结尾结尾动词，动词，变变y为为i，再加，再加ed.如：如：study(studied)carry(carried )第8页4、以、以重读闭音节结尾重读闭音节结尾动词，假如动词，假如末尾只有一个辅音字母末尾只有一个辅音字母，要双写，要双写最终这个辅音字母，再加最终这个辅音字母，再加ed.如：如：stop(stopped)plan-(planned)第9页第10页假如重读在第一个音节处假如重读在第一个音节处,不双写不双写加加ed.如如:visit-(visited)offer-(offered)第11页 wash the clothes row a boat visit grandparents answer the phone clean the room water the flower watch TV play the football climb a mountain return learn chinese jump 第12页 washed the clothes rowed a boat visited grandparents answered the phone cleaned the room watered the flower watched TV played the football climbed a mountain returned learned chinese jumped 第13页二、不规则动词改变二、不规则动词改变如：如：am/is-was are-were buy-bought have-had第14页1._ you _(remember)to buy the oranges yesterday?2.Who _(play)computer games yesterday.3.We _(go)to the cinema last night.The film _(be)very good.4.What time _ you _(get)to school this morning?5.Jim _(do)a lot yesterday.He _(go)shopping and _(cook)supper.Did remember played wentwas did get用动词适当初态填空用动词适当初态填空didwent cooked 第15页6.He usually _(get)up at 6 in the morning.Look!He _(get)up now.But yesterday he _(get)up very late,so he _(go)to school late.He _(be)late for school.getsis gettinggotwentwas第16页See you!第17页lastnightweekmonthMondayyesterdaymorningafternooneveningthe day before yesterday 用于普通过去时时间状语用于普通过去时时间状语1.与与last 连用连用2.与与yesterday 连用：连用：第18页行为动词普通过去时否定式行为动词普通过去时否定式普通过去时否定式是在动词原形前普通过去时否定式是在动词原形前加助动词加助动词did not(didnt).主语主语+didnt+动词原形动词原形I _ them the news.I _(tell)them the news yesterday.didnt telltold第19页行为动词普通过去时疑问式行为动词普通过去时疑问式普通过去时普通疑问式在句首普通过去时普通疑问式在句首加助动词加助动词didDid+主语主语+动词原形动词原形？They _(finish)their work at four.普通疑问句普通疑问句:_ they _ their work at four?Yes,they _.No,they _.finishedDidfinishdiddidnt第20页行为动词普通过去时疑问式行为动词普通过去时疑问式普通过去时特殊疑问式普通过去时特殊疑问式疑问词疑问词+did+主语主语+动词原形动词原形？They finished their work at four.AB 对划线部分提问对划线部分提问A:B:What did they do at four?When did they finish their work?第21页T注意注意1.外加助动词外加助动词did后后,动词须返回原形。动词须返回原形。Did he went to school yesterday?Did he go to school yesterday?F2.简略回答用助动词简略回答用助动词did/didnt代替代替行为动词。行为动词。Did he find the boy yesterday?Yes,he did.No,he did not(didnt).第22页普通过去时普通过去时 :表示表示过去某个时间发生过去某个时间发生动作或存在状态动作或存在状态.标志词Yesterday yesterday morning one day last year two days ago in 1999句子结构必定句必定句否定句否定句疑问句疑问句1)主语主语+行为动词行为动词过去式过去式 +其它其它 .2)主语主语 +be动词动词过去式过去式(was,were)+其它其它 .3)There was/were+主语主语 +其它其它 .1)主语主语+didnt+行为动词行为动词原形原形+其它其它.2)主语主语+wasnt/werent+其它其它 .3)There wasnt/werent+主语主语 .1)Did+主语主语 +行为动词行为动词原形原形 +其它其它?2)Was/were+主语主语+其它其它?3)Was/were there+主语主语 +其它其它?第23页