人教版九年级上册英语教学课件pptUnit12SectionA3a4c

学练优九年级英语下（RJ）教学课件SectionA(3a-4c)Unit12Lifeisfulloftheunexpected.学习目标Keywords&phrases:block,inlinewith,worker,stare,disbelief,above,burn,alive,airport,till,west,cream,workday,pie,showup,bean,market,bytheendofKeysentence:IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.RetellthestoryLeadinPresentationWhatdoyouknowaboutthesepictures?Howaboutthesepictures?九寨沟地震3aReadthepassageandanswerthequestions.1.Whichtwoeventsdoesthewritermention?ThewritermentionstheSeptember11attackinNewYorkandtheearthquakeinJiuzhaigou.2.Howdidthewriterendupmissingbothevents?ThewriterwenttogetacoffeefirstandwasnotintheofficewhentheplanehittheWorldTradeCenter.He/shehadoversleptandmissedhis/herflight,sohe/shewasabletoavoidtheearthquake.◆快速阅读全文,注意描述事件的关键词或短语,有助于整篇文章的理解。◆这些关键词可能是动词或动词短语,可能是介词短语、形容词或连词等。◆第一段：foundajob,arrivedat,wasaboutto,eventhough,staredindisbelief,theburningbuildingalive◆第二段：wokeup,wentoff,hadtakenoff,till,unexpectedly,turnedinto1.lost:2.west:3.below:4.dead:5.empty:3bFindwordsfromthepassagewithoppositemeaningstothewordsbelow.foundeastabovealivefulladv.向西,朝西adj.向西的,西部的n.西,西方1.Ifoundthemoneyonthefloor.2.Thesunrisesintheeast.3.Therewasalargebirdflyingaboveus.4.Hisfamilywassohappytohearhewasstillalive.5.ThetrainwassofullthatIcouldn’tgetonthetrainatall.Thenwriteasentencewitheachword.3cRetelloneoftheeventstoyourpartner.Usethesewordsandphrasestohelpyou.stare,indisbelief,takeoff,unexpected,burn,above,alive,till/until,arriveat,beaboutto,eventhoughprep.&conj.到;直到e.g.OnSeptember11,2001,Iarrivedatmy...Languagepoints1.IwasabouttogoupwhenIdecidedtogetacoffeefirst.beabouttodosth.即将做某事。侧重于表示动作马上就要发生,常与when引导的从句连用,但不与具体的时间状语连用。e.g.Oneofmyfriendsisabouttohavehersecondbaby.我的一个朋友马上就要生第二个小孩了。2.Iwenttomyfavoritecoffeeplaceeventhoughitwastwoblockseastfrommyoffice.eventhough“即使,虽然,尽管”,用于引导让步状语从句。blockn.街区e.g.He’sthebestteacher,eventhoughhehastheleastexperience.他虽然经验最少,却是最好的老师。3.Westaredindisbeliefattheblacksmokerisingabovetheburningbuilding.starev.盯着看,凝视表示看得比较仔细,有时候也带有吃惊的意味去看,常与at,into连用。e.g.Don’tstareatmelikethat.别那样盯着我看。indisbelief不相信,疑惑,怀疑e.g.Tamarastaredathimindisbelief,shakingherhead.塔玛拉一边狐疑地盯着他看,一边摇着头。aboveprep.1)（表示位置）在…...正上方；高于”（与below相对）。e.g.Thatbighigh-riseaboveusiswhereBrianlives.我们上面的那座摩天大楼就是布赖恩住的地方。Heliftedhishandsabovehishead.他将双手举过头顶。2)表示在地位、级别、能力、等方面“在……之上”“比……强”。e.g.Heisabovetheothersinability.他的能力优于其他人。3)adv.在上面e.g.Therearesnowypeaksabove.上面是白雪皑皑的群峰。Seetheexamplesgivenabove.见上述例子。burnv.着火,燃烧(burnt,burnt/burned,burned)burningadj.着火的；燃烧的e.g.Ouch!Thesandissohot!Itcanburnmyfeet.哎哟！沙子这么烫！会烫伤脚的。Hewastrappedinaburninghouse.他被困在正在燃烧的房屋里。4.Ifeltluckytobealive.alive一般作表语；也可以作后置定语或宾补。“活(着)的；在世的；(继续)存在的”；反义词是dead。e.g.Doyouknowshe’salive?你知道她还活着吗？Peoplealiveshouldtrytheirbesttolivebetter.活下来的人应该尽力生活得更好。Tomwaskeptaliveinthebigfire.(宾补)汤姆在这次大火中活下来了。辨析alive,living,livelyalive“活着的”,在句中常作表语或定语。作表语时,常可与living互换；作定语时,常要放在被修饰词之后。living“活着的”,在句中用作表语或定语。lively“活泼的”,在句中可作表语或定语。5.ButbythetimeIgottotheairport,myplanetoNewZealandhadalreadytakenoff.airportn.机场takeoff脱掉；起飞e.g.Hetookoffhishatandbowedastheprimeministerpassed.首相经过时他脱帽鞠躬。Weeventuallytookoffat11o’clockandarrivedinVeniceat1:30.我们终于在11点起飞,1:30到达威尼斯。GrammarFocusWhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgottoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.一、概念过去完成时表示一个动作或状态在过去某一时间或动作之前已经完成或结束,也可能是早已完成或结束,即“过去的过去”；也可以指过去的动作延续到过去的某个时刻。二、结构“had+动词的过去分词”三、用法1.表示过去某一时间或动作之前已经发生或完成的动作或存在的状态。句中常用by,before,when,until等词引导时间状语。它是以过去某一时间为起点,所以过去完成时是一个相对的时态,表示的是“过去的过去”。只有和过去某时间或某动作相比较时才能用到它。例:Mostoftheguestshadleftwhenhearrivedattheparty.当他到达晚会时,他发现大多数客人已经离开了。2.过去完成时还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或持续下去,常与for,since等词连用。例：WhenJackarrived,Maryhadbeenawayforalmostanhour.当杰克到时,玛丽已经离开快一个小时了。【实战演练】用所给词的适当形式填空。1.WhenIgotthere,thebus_________(go).2.BythetimeIgottoclass,theteacher___________(start)theclass.3.We_____________(learn)over1,000wordsbytheendoflastterm.4.I___________(clean)theroombeforehearrivedhere.hadgonehadstartedhadlearnthadcleanedbythetime的用法bythetime意为“到……时候(为止)”,是一个介词短语,在句中常起到连词的作用,引导时间状语从句。1.如果从句中的谓语动词是一般过去时,那么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”。例：Bythetimeyoucameback,Ihadfinishedthisbook.你回来时我已经把这本书看完了。（从句谓语动词cameback为一般过去时,所以主句动作用过去完成时hadfinished,表示过去的过去。）2.如果从句中的谓语动词为一般现在时或现在完成时,那么主句中的谓语动词常用将来完成时,表示“截止到将来的某一时刻为止,主句动作将已完成”。例：BythetimeIgethome,theywillhaveleft.我到家时他们将已经离开。BythetimeIgraduatenextyear,Iwillhavelivedhereforfiveyears.到明年毕业时,我将已经在这待了五年了。（1）bytheendof+时间点意为“到……结束时”①+过去的时间点,主句用过去完成时；例：Bytheendoflastyear,IhadstayedinXi’anforsevenyears.到去年结束时,我已经在西安待了七年了。②+将来的时间点,主句用将来完成时；例：Bytheendofnextmonth,Iwillhavefinishedmynewbook.到下个月结束时我将要完成我的新书。(2)by+时间点意为“到……为止；截止……时”①+现在的时间点,主句用现在完成时；例：Bynow,Ihavefinishedallmyhomework.截止现在,我已经完成了所有的作业。②+过去的时间点,主句用过去完成时；例：Byyesterday,thebuildinghadbeencompleted.截止昨天,这个建筑就已经完成了。③+将来的时间点,主句用将来完成时。例：Bytomorrow,allthestudentswillhavebeenoutoftheschool.到明天所有的学生都将离校。1.Timwentintothebathroom.Marygotup.__