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1、概念yesterday, yesterday表示在过去某个时间里所发生的动作或存在的状态。通常在句子里找到表示过去时间的词或词组。如：morning,yesterdayafternoon,yesterdayevening,thedaybeforeyesterday,lastnight,lastweek,lastmonth,lastyear,amomentago,justnow,twodaysago,aweekago,in1990等。如：Iwenttobedatelevenlastnight.昨晚我11：00睡觉。二动词过去式的构成规律(一)规则动词的过去式1, 一般情况下+,在动词原形后面加-
2、ed;Look-lookedplay-playedstart-startedvisit-visited2,以不发音e结尾的动词，在词尾直接加-d;Liveliveduse-used3,以“辅音字母+y”结尾的动词，先将y改成i,再加-ed;Study-studiedtrytriedfly-flied一ed o4,以重读闭音节(即辅音+元音+辅音)或r音节结尾，末尾只有一个辅音字母的动词，要先双写这个辅音字母后，再加Stop-stoppedplan-plannedpreferred(二)不规则动词的过去式1 改变动词中的元音；Begin-begandrink-drankcome-cameeat-
3、ateGrow-grewrun-ranknow-knewwin-wonspeak-spokeTake-tookwrite-wroteget-got2 变词尾的-d为-tBuild-builtlend-lentsend-sentspend-spentbend-bent3 与动词原形一样；Cut-cutput-putcost-cost4变hurt-hurtshut-shut-ay为一aid(少数动词)Say-saidpay-paidlay-laid5采用不同词根；Sell-soldteach-taughtbuy-bought6其他Am/is-wasare-werehave/has-haddo-di
4、d二加-ed后的读音方法1 ed加在清辅音后面读/t/Finished/-t/help/-t/asked/-t/2 ed加在浊辅音或元音结尾的，读/d/Played/-d/lived/-d/enjoyed/-d/3 ed加在/t/或/d/后面，读/id/Wanted/-tid/needed/-did/visited/-tid/过去时练习：写出下列动词的过去式IsamflyplantaredrinkPlaygomakedoesdanceWorryasktasteeatdrawPutthrowkickpassdo用所给动词的适当形式填空1 We(live)inJapanlastyear.2 Sus
5、an(stop)thecaronthestreetyesterday.3 Mymother(clean)myroomandI(study)fortheEnglishtestlastSunday.4 Whatyou(do)lastnight?5 OnSaturdaymorningI(play)football二用括号内所给动词的适当形式填空(1) May(finish)herhomeworkverylateyesterdayevening.(2) HanMei(bring)herpettotheparkthatday.(3) Hisfather(buy)anewcomputerforhimlas
6、tweek(4) MissDu(walk)toworkeverydaylastterm.(5) We(move)toShenyang8yearsago.(6) you(have)breadforbreakfastthismorning?(7) She(give)meanicepresentlastnight.(8) Thepolice(stop)thecarand(catch)thethief(小偷)justnow.(9) Tom(carry)waterfortheoldmanlastSaturday.(10) UncleWang(come)intotheroomand(find)someth
7、ingtoeat.(11) Lily(study)intheclassroomfortwohoursandthen(leave).(12) Jimmy(do)alottoday.He(go)shoppingand(cook)supper.(13) We(go)tothecinemalastnight.Thefilm(be)verygood.(14) Whattimeyou(get)toschoolthismorning?三句子变化（一）一般过去时的一般疑问句1. 把was,were放在句首，其余位置不变。由Was,?引导的一般疑问句，肯定答为：Yes,was.否定回答为:No,wasnt由We
8、re,?引导的一般疑问句，肯定回答为：Yes,were.否定回答为：No,werent.如：（1） IwasborninShanghai.-WereyouborninShanghai?-Yes,Iwas.（肯定回答）-No,Iwasnt（否定回答）（2） TheywereinLiYanshomelastnight.-WeretheyinLiYanshomelastnight?-Yes,theywere.（肯定回答）-No,theywerent（否定回答）2. 在行为动词的句子中，要用助动词did来引导，其余的语序不变。要注意的是，要把行为动词的过去式改为原形。肯定回答为：Yes,did否定No
9、,didnt.如：Johnplayedcomputergameslastnight.-DidJohnplaycomputergameslastnight?Yes,hedid.No,hedidnt1 在表示过去存在的状态的句子中，相接在was,were的后面加上not。如：（1） Hewasintheparkthedaybeforeyesterday.(2)Wewerebusylastweek.然后把过去式的行为动词改为动词原Wewerenotbusylastweek.2在表示过去的时间发生的动作的句子中，要在行为动词的前面加助动词didnt.如(1) Sheplayedtheviolinlas
10、tnight.Shedidntplaytheviolinlastnight.(2) Theyswaminthelakeyesterday.Theydidntswiminthelakeyesterday.(三)一般过去式的特殊疑问句1. Whatdid,?(主要是询问过去发生了什么事情，注意要把过去式改为动原形。)WeateChinesefoodlastnight.Whatdidweeatlastnight?2. Wheredid?(主要是询问过去事情发生的地方)Theysanganddanceinthemusicroomyesterdaymorning.Wheredidtheysingandd
11、anceyesterdaymorning?3. Who+动词过去式，？(主要是询问过去事情发生的人物)MikeandTomclimbedmountainslastweekend.Whoclimbedmountainslastweekend?四句子结构1 在表示某个时间里存在的状态的句子，系动词用过去式was,were构成。如：(1)Iwasathomeyesterday.昨天我在家。(2)Wewereinthegymjustnow.刚才我们在体育馆、2 在表示过去某个时间里发生的动作，用动词的过去式构成。如：Ivisitedmyuncleyesterday.昨天我拜访了我的叔叔。3 各种句式(
12、1) 一般过去时的肯定陈述句：主语+动词过去式+宾语或表语。HeworkedinShanghaitenyearsago.(2) 一般过去时的否定句：a. 主语+didnt+动词原形+宾语。(did+not=didnt)Hedidntdomorningexercisesyesterday.b. 主语+wasnt/werent+表语。(was+not=wasntwere+not=werent)(3) 一般过去时的一般疑问句：a. Did+主语+动词原形+宾语？DidyoustudyEnglishin1990?b. Was/Were+主语+表语?Washeapupilfiveyearsago?一般过去时的特殊疑问句：a特殊疑问词+did+主语+动词原形+宾语?Wheredidyourparentslivefiveyearsago?WhatdidyoudolastSunday?b特殊疑问词+were/was+表语？Whowasatthezooyesterday?
