人教版英语八年级下Unit3学案5Unit3WhatwereyoudoingwhentheUFOarrived?教学目标：1.谈论过去发生的事情2.学会讲故事重点词汇：UFO,bathroom,bedroom,kitchen,land,shirt,while,experience,around,strange,follow,kid,climb,jump,shout,cat,anywhere,happen,accident,plane,modern,kill,murder,bright,playground,bell,close,silence,meaning,earth,hero重点短语：infrontof,getoutof,talkonthephone,takeoff,besurprised,atthetrainstation,runaway,inhospital,atthedoctor's,walkaround,callone'sname重点句型：1.WhatwereyoudoingwhentheUFOarrived?Iwasstandinginfrontofthelibrary.2.TheboywaswalkingdownthestreetwhentheUFOlanded.Whiletheboywaswalkingdownthestreet,theUFOarrived.3.WherewereyouwhentheUFOarrived?Iwasinmybedroom.语法重点：1.过去进行时。2.掌握以when和while引导的时间状语从句。七.课文重点、难点讲解：1.WhatwereyoudoingwhentheUFOarrived?Iwasstandinginfrontofthelibrary.（1）infrontof...在......前面，当......的面inthefrontof...在......的前部（2）到达arrive不及物动词，后跟宾语得加介词in／at（3）过去进行时：表示在过去某一时间内正在进行的动作。过去某一点时间正在进行的动作或某段时间内一直进行的动作。构成：was/were+doing。过去进行时的标志词：at8o'clocklastnight,thistimeyesterday等。注意：一些动词，如see,hear,love,like,know,remember,understand,have等感情、知觉和状态的词，一般不用于进行时。过去进行时和一般过去时的区别：过去进行时表示过去正在进行的动作，而一般过去时则表示一个完整的动作。2.Iwasgettingoutoftheshower.我正洗完澡出来。"getout"出来，getoutof...从......出来3.IwaswalkingdownCentreStreetwhenaUFOlanded.walkdown/along沿着......走。land"着陆、下降"，动词。takeoff"起飞"e.g.Theplanelandedsafely.4.Thegirlwasshoppingwhenthealiengotout.Whilethegirlwasshopping,thealiengotout.when与while区分：（1）"当...的时候"，如后面连接的动词为进行时态，则用while多于用when。而when通常与瞬间性动词或延续性不强的动词连用。（2）如果while前后的动词都是进行时态，while可译为"与此同时"Iwasreadingwhilemybrotherwasdrawing.（3）当while前后的句子描述的情况相对或相反，while可译为"而"，while更强调并列的对比而非转折。e.g.Iamout-goingwhilemysisterisquietandshy.总之，when表示做某种动作的时间或瞬间，由其引导的时间状语的时态如果是一般过去时，其主句通常要用过去进行时。while表示略长的一段时间，由其引导的时间状语从句用过去进行时，而主句时态根据实际情况而定。5.IhadaveryusualexperienceonSunday.experience可数名词，"经历"。anexperience一次经历。6.Ifollowedittoseewhereitwasgoing,andIwasverysurprisedwhenitwentintoasouvenirshop.（1）followsb./sth跟随某人（某事物），follow及物动词，"跟随"。（2）besurprise"感到吃惊"，主语为人。e.g.Hegaveusabigsurprise.We'resurprisedtohearthenews.Thatmoviehasasurprisingend.7.Isn'tthatamazing!太令人惊叹了！这是感叹句的一种表达形式。如：Aren'ttheyperfect!另外还有用how和what开头的感叹句。例：WhatadayIhad!8.Isawacatinatree.我看见树上有只帽9.Itwasreallyscared.bescared"（某人）给吓坏了，害怕了。"近义短语beafraid/frightened.10.Heshoutedatme.SoIstoppedclimbing.shoutatsb.冲某人大叫，shoutsth.大叫某事物（shouthisname）stopdoingsth.停止做某事，stoptodosth.停下来去做某事11.callthepolice报警talkonthetelephone在电话里交谈lookoutside往外看，lookoutsideof向...的外面看。12.Beijingwasmadehostto2008Olympics.host名词，"主人"；动词，"作东道主"14.RobertAllenisnowover40.over："超过"15.TheWorldTradeCentreinNewYorkwasdestroyedbyterrorists.EventhedatehasmeaningtomostAmericans.16.HisflightaroundtheEarthlastedabout22hours.around介词，"围绕，环绕"last动词，"...
