新概念英语青少版4A第廿一课课件JNCE-Unit21-Mad-or-not

JNCE4AUnit21Madornot?JNCE4ATeachingaims1.Sscanmastertheusageofkeywordsandphrases:drivesbmad,forsomereason,comeintouse,offer,alargesumofmoney,be

determinedtodo,driveaway,nightandday;2.Ssknowthestructureofpassivevoicewithmodalverbs“can”,“must”,and“could”and

knowthedifferentmeaningswiththemodalverbs;3.Recitethesecondpara.;4.Sscangettoknowdifferentkindsofnoisesanditsinfluenceonourdailylives.复习一般现在时，一般过去时的被动掌握含有情态动词的被动语态的含义，以及结构即可Teachingaims复习一般现在时，一般过去时的被动CONTENTSReviewTextlearningGrammarfocusNewwordsCONTENTSReviewTextlearningGra1.课文默写（7分钟）。2.Fillintheblanks1)Heisalwaysw_____abouthisweight.2)NowIcanwalktowork_________(而不是)goingbycar.3)Youhavetoh___ifyouwanttocatchthattrain.4)Theboyoftenc____trouble,sohisparentsareangrywithhim.5)Hearingthenews,helookedvery______(吃惊).6)A_____withothersisnotright.7)Iheardalittlebird_____(唱歌)inthetree.8)Tompractice_____(play)theviolineveryday.Keys:1.worried2.insteadof3.hurry4.cause5.surprised6.Arguing7.singing7.playingReview(U19+U20)1.课文默写（7分钟）。Review(U19+U20)4can’tfindsomethingimportantalotofworkneedstobedonealwayshearthenoisecan’tsleepwellWhenwillyoufeelmad?can’tfindsomethingimportantPicturetourWhathappenedinthefirstpicture?Didthemandecidetogoaway?

Aeroplane

drivesthemanmad

becauseofthenoise.Hewasoffered

alargesumofmoney,buthedeterminedtostayhere.Whydidhemakesuchadecision?PicturetourWhathappenedint61.madadj发疯的,神经错乱的/生气的，气愤的①bemadat/with②gomad发疯，发狂Whenisyourmother/teachermadatyou?2.reasonn原因forsomereason:由于某种原因Thereasonwhy…isthat…

…的理由是…3.determine

vt.决定，确定(注意发音以及重度)

determinetodosthdecidetododeterminedadj.坚定的，坚毅的4.alargesumof:大量的

alargesumofmoneysum:n.总数Newwords教师需要对于第2，3个单词举例1.madadj发疯的,神经错乱的/生气的，气愤1.I’llgom

ifIhavetowaitmuchlonger.

2.Ther______whyIstudyEnglishisthatIwanttogoabroad.3.Hisfatherspentalarges____ofmoneyonthehouse.4.Thelittlegirlgavemead_________look.Shesaidshewouldnotchangehermind.

Fillintheblanksadeasonumetermined1.I’llgomifIhavetTextlearningTextlearningListenandmark.Listenandfollow.Listenandmark.

Aeroplaneareslowlydrivingmemad.Ilivenearanairportandpassingplanescanbeheardnightandday…Ihavebeenofferedalargesumofmoneytogoaway,butIdeterminedtostayhere.EveryonesaysImustbemadandtheyareprobablyright.Read,divide,andgiveanewtitle.TopicsentenceDevelopmentEnding题目可参照AmImad?让学生把分好的段在课文中进行标注，方面后面讲解AeroplaneareslowlydrWhatmakethewritergomad?Andwhy?Aeroplanesareslowlydrivingmemad.Part1Topicsentenceaeroplane:n.airplane/plane飞机Whatmakethewritergomad?AIlivenearanairportandpassingplanes(1)

canbeheard(2)

nightandday(3).Theairportwasbuilt(4)

yearsago,butforsomereason(5)itcouldnotbeused(6)

then.Lastyear,however,itcameintouse(7).Part2Development1.canbeheard,couldnotbeused:含有情态动词的被动语态结构：情态动词+be+done(情态动词不同，情感态度不同)2.passingplanes过往的飞机（passing修饰planes,“经过的，过往的”）3.nightandday日日夜夜，夜以继日4.comeintouse:投入使用Canyouuseyourownwordstodescribetheairport?有时间，学完背诵该段Ilivenearanairport

Over(1)ahundredpeoplemusthavebeendriven(2)awayfrom(3)theirhomesby(4)thenoise.1.over(超过),from(来源),by(被动语态)2.musthavedone过去发生,表示推测,一定…3.musthavebeendone过去发生,表示推测,被动(仅作了解)Whatwasthepeople’sreaction(反应)towardsthenoise?Over(1)ahundredpeopleIamoneofthefewpeopleleft.SometimesIthinkthishousewillbeknockeddown(1)

byapassingplane.Ihavebeenoffered(2)

alargesumofmoney(3)

togoaway(4),butIamdeterminedtostay(5)here.1.willbeknockeddown:将来时的被动语态2.knockdown:击倒，撞倒3.havebeenoffered:现在完成时被动(offertodo)Howaboutthewriter?Canyouguesswhydidn’tthewriterleavehishouse?

IamoneofthefewpeoEverybodysaysImustbemadandtheyareprobablyright.Part3Ending

mustbemad:肯定推测,一定…Discussion:Doyouknowanyothernoisethatmakeyoumad?EverybodysaysImustFillintheblanks

Aeroplaneareslowlydriving1._____(I)mad.Ilivenear2.____airportandpassingplanescan3.______(hear)nightandday.Theairport4.______(build)yearsago,butforsomereasonitcouldnotbeusedthen.Lastyear,however,it5._____(come)intouse.Overahundredpeoplemusthavebeendrivenaway6.____theirhomesbythenoise.Iamoneofthefewpeopleleft.SometimesIthinkthishousewillbeknockeddown7.____apassingplane.Ihavebeen8.______(offer)alargesumofmoney9.____(go)away,butIdetermined10._____(stay)here.Everyone11.____(say)Imustbemadandtheyare12.______(probable)right.Keys:1.me2.an3.beheard4.wasbuilt5.come6.from7.by8.offered9.togo10.tostay11.says12.probablyFillintheblanksAeropGrammarfocusGrammarfocus1.Passingplanescan

beheardnightandday.2.Theairportwasbuiltyearsago,butforsomereasonitcouldnotbeusedthen.3.Heisbelievedbyus.4.Yourhomeworkshouldbefinishedatonce.Readandfindsomethingincommon学生需要说出被动语态的时态1.Passingplanescanbeheard

ThePassiveVoice1.概念：主动语态——主语是动作的执行者被动语态——主语是动作的承受者2.结构：主语+be+动词的过去分词+其它3.时态：be必须与主语的人称和数一致,通过变化be

体现句子的不同时态(主要掌握一般现在时和一般过去时).4.含有情态动词的被动语态Reviewwhatwehavelearntaboutthepassivevoice.主语+can(能够)/

may(可以)/

must(必须)/

should(应该)+be

+done(注意情态动词的含义)教师需要进一步指出情态动词的含义ThePassiveVoice1.概念：主动语态1.Mybikewasstolenlastnight.

2.Lettersarecollectedateighteverymorning..1.ThedeskwasmadebyMasterWang.2.Thebagwastakenawaybyhissister.Whencanweusethepassivevoice?不知道动作的执行者是谁，或没有必要指出动作的执行者时。为了强调或突出动作的承受者时。根据学生情况，选用1.MybikewasstolenlastnigReadandjudgewhetherthesentencesarerightorwrong.Thetruthwillbeknownbyeveryone.Somepensboughtforhischildren.Thechildrengavetheforeignguestsawarmwelcome.易错点：1.被动语态的结构记错(bedone)2.判断何时使用被动语态出错Readandjudgewhetherthesen语法填空(1)---Whoisthelittlebabyinthephoto,Susan?---It’sme.Thisphoto_________(take)tenyearsago.(2)---Whatshouldwedofirstifwewanttodevelopourvillage?---Alotofthenewroads______(must,build),Ithink.(选做)(3)Mymotheralways_______(sweep)theflooreveryday.(4)Rice_______(grow)inthesouthofthecountry.(5)Myaunt______(invite)metothedinnerpartythismorning.Key:1.wastaken2.mustbebuilt3.sweeps4.isgrown5.invited