过去进行时讲解完整(42张1)ppt课件

.,过去进行时,.,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。,.,结构,.,现在分词的构成1)一般动词在词尾加-ing,读i,如go-going。2)以不发音字母e结尾的动词,先去掉e,再加-e-comingmake-makingwrite-writing,.,3)以重读闭音节结尾的动词,如果末尾以一个辅音字母结尾,应先双写这个字母,再加ing,x和w结尾的除外。如:get-gettingswim-swimmingshow-showing,.,4)以字母y结尾的单词,直接加ing。如carrying、playing、studying。5)以字母ie结尾的动词,变ie为y,再加ing。diedyinglielying,.,用法,1.过去进行时的基本用法主要表示过去某一时间正在进行的动作。如：Hefellasleepwhenhewasreading.他看书时睡着了。,.,2.过去进行时表示现在主要是为了使语气委婉、客气。如：Iwaswonderingifyoucouldgivemealift.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。,.,3.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：Theywerealwaysquarrelling.他们老是吵架。,.,4.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：Hewasfriendly.他很友好。(指过去长期如此)Hewasbeingfriendly.他当时显得很友好。(指当时一时的表现),.,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：Shewrotealettertoherfriendlastnight.她昨晚给朋友写了封信。(信写完了)Shewaswritingalettertoherfriendlastnight.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：Shewavedtome.她朝我挥了挥手。Shewaswavingtome.她一直朝我挥手。,.,3、句中有amomentago，thismorning,thewholemorning,alldayyesterday,fromninetotenlastevening,when,while,atthattime,justnow之类的短语一般用一般过去时。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IwastalkingtoTomtheotherday那天我跟汤姆聊天来着。,.,典型的例子,1)Mary_adresswhenshecutherfinger.A.madeB.ismakingC.wasmakingD.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)Asshe_thenewspaper,Granny_asleep.read；wasfallingB.wasreading；fellC.wasreading；wasfallingD.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：fallsick。,.,.,以when,while及as引导的时间状语从句延续性动词：指动作可以延续一段时间，而不是瞬间结束。如：work、study、drink、eat等。非延续性动词：指动作极为短暂，瞬间结束如：start、begin、jump、knock等。,.,1.当从句中的谓语动词是持续性的动作时,用while,when或as引导。,Eg：Iwasdrawingthepicturewhenmyfriendcame.Jonewastalkingwithhisclassmateswhenteachercalledhim.,.,当从句中的谓语动词表示瞬间动作时,不可用while。Eg:Hewasonthepointofleavingwhensomeoneknockedatthedoor.如果谈论两个长动作,最常用的是while。,Eg:WhileJohnwassittingbitinghisnails,Iwasworkingoutaplantogetushome.,.,如果表示两个短动作或事件同时发生,常用as或justas,也可用when。,Justashecaughttheball,therewasatearingsound当他抓住球的时候,有一种撕裂的声音。,.,6.Tomburnthishandwhenhe_thedinner.A.cookedB.wascookingC.hasbeencookingD.hadcooked,.,注意:在上述所列的动词中,个别的也能用进行时态,但其词义发生了转变.Ihearthegirlsinging.WearehearingatalkonthehistoryofAmerica.Ihaveacomputer.Iamhavinglunch.,.,过去进行时与一般过去时的区别,过去进行时表示的动作在过去某个时间正在进行,可能完成,也可能没完成。,一般过去时表示动作或状态已经结束。,Mary_aletterlastnight.玛丽昨晚整晚都在写信。Mary_aletterlastnight.玛丽昨晚写了封信。,waswriting,wrote,.,Exercises,1.He_(notwork)atthattime.2.Whentheteacher_(come)in,they_(talk)loudly.3.What_you_(read)lastnight?,wasntworking,came,weretalking,werereading,didread,.,4.Hismother_(return)whilehe_(do)hishomework.5.Myfather_(watch)TVwhilemymother_(cook).,returned,wasdoing,waswatching,wascooking,.,用动词的适当形式填空(一般现在时、过去时、将来时、现在进行时、过去进行时）1.She_(do)herhomeworkthistimeyesterday.2.Theteacher_(help)hisstudentswiththeirlessonsnow.3.He_(make)progresseveryday.4.She_(read)astory-bookatsevenyesterdayevening.5.It_(rain)hardnow.6.Thestudents_(get)readyforthepicnicthesedays.,wasdoing,ishelping,makes,wasreading,israining,aregetting,.,7.They_(visit)thesciencemuseumnextMonday.8.Look,they_(play)videogames.9.We_(do)somecleaningatthattime.10._thestudents_(like)learningEnglish?11._you_(have)agoodtimelastSunday?,willvisit,areplaying,weredoing,Do,like,Did,have,.,12._he_(study)Englishfrom7to9lastnight?13.Listen,she_(sing).14.He_(notwork)inthefactorythesedays.15.Itseightoclock.Thestudents_(have)anEnglishlesson.,Was,studying,issinging,isntworking,arehaving,.,单项选择题1.Mybrother_whilehe_hisbicycleandhurthimself.A.fell,wasridingB.fell,wereridingC.hadfallen,rodeD.hadfallen,wasriding2.Tom_intothehousewhennoone_.A.slipped,waslookingB.hadslipped,lookedC.slipped,hadlookedD.wasslipping,looked,.,3.ThelasttimeI_Janeshe_cottoninthefields.A.hadseen,waspickingB.saw,pickedC.hadseen,pickedD.saw,waspicking4.IdontthinkJimsawme;he_intospace.A.juststaredB.wasjuststaringC.hasjuststaredD.hadjuststared,.,5.IfirstmetLisathreeyearsago.She_ataradioshopatthetime.A.hasworkedB.wasworkingC.hadbeenworkingD.hadworked6.-Hey,lookwhereyouaregoing!-Oh,Imterriblysorry._.A.ImnotnoticingB.IwasntnoticingC.IhaventnoticedD.Ididntnotice,.,7.ThereportersaidthattheUFO_easttowestwhenhesawit.A.wastravelingB.traveledC.hadbeentravelingD.wastotravel8.I_mybreakfastwhenthemorningpostcame.A.hadB.hadbeenhavingC.havebeenhavingD.washaving,.,填入以下单词的正确形式1.Itwaswarm,soI_offmycoat(take).2.John_(take)aphotographofmewhileI_(not/look).3.Jane_(wait)formewhenI_(arrive).4.WhenIwasyoung,I_(want)tobeabusdriver.,.,5.MybrothercameintothebedroomwhileI_(dance).6._he_(lie)onthegroundatnineyesterdayevening?7.What_Jim_(write)whentheteachercamein?8.TheReads_(nothave)lunchwhenIgottotheirhouse.9.MikeandI_(play)basketballatthattimeyesterdayafternoon.,.,按要求转换下列句型。1.WewerehavingaPEclassatfouryesterdayafternoon.（改为否定句）We_aPEclassatfouryesterdayafternoon.2.Katewasreviewingherlessonsateightlastnight.（改为一般疑问句，并做肯、否定回答）_Kate_herlessonsateightlastnight?_,she_._,she_.,.,3.Heraninthepark.（用atthistimeyesterday改写）He_intheparkatthistimeyesterday.4.Theywereplayingcomputergamesatninelastnight.（对划线部分提问）_they_atninelastnight?5.Iwasreadinganovelatthreeyesterdayafternoon.（对划线部分提问）_you_atthreeyesterdayafternoon?,.,以when,while及as引导的时间状语从句延续性动词：指动作可以延续一段时间，而不是瞬间结束。如：work、study、drink、eat等。非延续性动词：指动作极为短暂，瞬间结束如：start、begin、jump、knock等。,.,1.当从句中的谓语动词是持续性的动作时,用while,when或as引导。,Eg：Iwasdrawingthepicturewhenmyfriendcame.Jonewastalkingwithhisclassmateswhenteachercalledhim.,.,当从句中的谓语动词表示瞬间动作时,不可用while。Eg:Hewasonthepointof