Unit 12 Section A Grammar Focus -4c 课件-人教版九年级英语全册 .pptx
louisalouisalouisalouisaUnit 12 Life is full of Unit 12 Life is full of the unexpectedthe unexpectedGrammar focus-4clouisalouisaGrammar FocusWhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgottoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.louisalouisa过去完成时过去完成时表示在过去某个时间或动作之前表示在过去某个时间或动作之前已经发生或完成了的动作或存在的状态，即已经发生或完成了的动作或存在的状态，即“过去的过去过去的过去（past-in-the-past）”。例：例：Wehad learnedEnglishfor4yearsbeforeenteredhighschool.上中学前上中学前，我们已经学英，我们已经学英语四年了。语四年了。past in the pastpast nowlouisalouisa过去完成时过去完成时(1)构成：由“助动词had(用于各种人称和数)+过去分词”构成否定式：hadnot+过去分词缩写形式：hadnt+过去分词(2)用法：过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作。louisalouisa(3)它所表示动作发生的时间是“过去的过去”。表示过去某一时间可用by,before等构成的短语来表示。也可以用when,before等引导的时间状语从句来表示。还可以通过状语从句或通过上下文暗示。louisalouisa过去完成时过去完成时的的判断判断 由由“过去的过去过去的过去”来判定。来判定。过去完成时表示过去完成时表示“过去的过去过去的过去”，发生的动作用发生的动作用，发生的动作用发生的动作用。例：例：When I got to the station,the train had already left.当我到车站时，火车已经离开了。当我到车站时，火车已经离开了。After he had finished his homework,he went to bed.完成作业后他就去睡觉了。完成作业后他就去睡觉了。first first后louisalouisa例如：WhenIgotthere,youhadalreadyeatenyourmeal.当我到达那里时，你已经开始吃了。Bythetimehegothere,thebushadleft.在他到达那里之前，汽车已经离开了。louisalouisaBythetimeWhenlouisalouisaby the time 的用法bythetime意为“到时候(为止)”，在句中常起到连词的作用，引导时间状语从句。从句中的谓语动词是一般过去式，主句的谓语动词通常用过去完成时，表示“截止到从句动作发生时，主句动作已经完成，即过去的过去”。louisalouisaBythetimesheranoutside,thebushadalreadyleft.Whensheranoutside,thebushadalreadyleft.过去的过去过去的过去过去过去sheranoutsidethebusleftlouisalouisathepolicemangottotheshopTomranawayBythetimethepolicemangottotheshop,Tomhadrunaway.Whenthepolicemangottotheshop,Tomhadrunaway.过去的过去过去的过去过去过去louisalouisaJennywokeuptheconcertwasoverBythetimeJennywokeup,theconcerthadbeenover.WhenJennywokeup,theconcerthadbeenover.过去的过去过去的过去过去过去louisalouisa总 结1.过去完成时的构成：_+_2.过去完成时表示：_ _3.过去完成时常与_ 等引导的时间状语连用。had过去分词when,before,bythetime过去某一时刻或动作之前已经发生或完成的动作。过去的过去louisalouisa过去完成时的时间状语when by the time before as soon as until once after When I got up,my brother had gotten into the shower.When I got up,my brother had gotten into the shower.By the time I reached school,the teacher had began teaching.Before I finished my homework,the game had began.As soon as I realized the result,the ice had broken.She didnt fall asleep untill she had finished her work.After I gratituded from school,I had learned 3 languages.louisalouisa1.Timwentintothebathroom.Marygotup._2.Thecoffeebecamecold.Iputcream(n.奶油奶油)inthecoffee._Before I put cream in the coffee,the coffee had become cold.4aMake sentences using by the time or before.By the time Mary got up,Tim had already gone into the bathroom.louisalouisa3.Theteachercollectedthemathhomework.Igottoschool._4.Icompletedtheworkformyboss.Theworkday(n.工作日工作日)ended._By the time I got to school,the teacher had collected the math homework.I had completed the work for my boss before the workday ended.louisalouisa5.Themoviestarted.Iarrivedatthecinema._6.Mymotherfinishedmakingtheapplepie(n.苹果派苹果派).Igothomefrommylanguagecourse._The movie had started before I arrived at the cinema.By the time I got home from my language course,my mother had finished making the apple pie.louisalouisa1.BythetimeIarrivedattheparty,everyoneelse_already_.2.Whenheputthenoodlesintoabowl,herealizedhe_toaddthegreenbeans(n.豆豆).rush out,forget,arrive at,go into,show up(赶到；露面赶到；露面),find outshownuphadhadforgotten4bFill in the blanks with the correct forms of the words in the box.louisalouisa3.Bythetimemymothercamebackfromthemarket(n.市场市场),I_already_ofthedoortogoformypianolesson.4.Beforeshegottotheairport,she_abouttheearthquake.5.Whenshe_themovietheater,sherememberedshehadforgottentofeedherdog.6.Beforeshegotachancetosaygoodbye,he_thebuilding.hadrushedoutarrivedathadgoneintohadfoundoutlouisalouisa1.BythetimeIleftforschoolinthemorning,_Ihadalreadyhadbreakfast.Ihadalreadyhadsupper.Ihadalreadyhadmyhaircut.Write two true statements and one false statement about your day yesterday.Then ask your classmates to guess the false statement.4clouisalouisa2.Bytheendoftheschoolday,_3.Bydinnertime,I_I_I_IhavegotapresentfromTom.Ihadhadthesearticlesread.Ihadfinishedmyhomework.hadhadtoomanyapples.hadeatenplentyofmeat.havehadallthehouseworkfinished.louisalouisa写出下面短语的意思。1.showup_2.befullof_3.arriveat_4.beaboutto_5.takeoff_6.turninto_7.findout_出现；露面充满到达将要做某事(飞机)起飞变成发现；找出louisalouisa根据汉语意思完成句子21.经理问我昨天开会卡拉有没有露面。The manager asked me whether Carla at the meeting yesterday.22.到上学期结束为止我们已经学习英语三年了。We had studied English for three years last term.23.地震发生时,我冲出了超市。When the earthquake happened,I of the supermarket.24.你查明山东到湖北的机票多少钱了吗?Have you how much the airline ticket from Shandong to Hubei costs?25.当他们到达火车站时,其他人已经在那里待了一个小时了。By the time they the train station,everybody else had been there for one hour.had shown upby the end ofhad rushed out found outgot to
