2019-2020年高中英语（人教大纲）第三册：Unit9Healthcare（第四课时）TeachingAims:1.Learnandmasterthefollowingwords:incidntsignificance,bench,sink,jar,lid,devotion2. Tramthestudentsintegratingskills.especiallyreadingandwritingskills.3. LearnaboutAlexanderFlemingandhisgreatcontributiontothenumarishealth.1e咖卩。昨passageexactlyandlearnaboutAlexanderFlemingandhisdiscoverypenicillin.2. Trainthestudentse,.，一readingandwritingability.TeachingDifiicultPoint:Howtohelpthestudentswriteagoodarticleforajournal.presentsomeinformationaboutthepassagetothestudents,soastomakethestudentsinterestedinit.11112.1nstructmgmethodtohelpthestudentswriteanarticle.3.1ndividul,pairorgroupworktomakeeverystudentfinishthegiventasksbetter.TeachingAids:1. themultimedia2. theblackboardSte11叩Greetings叹Greetthewhoje.classasusual.Step11RevisionT:Inthelastperiod,werevisedtheSubjunctiveMood.Canyouuseitfreely?TWeklefsdoanexercise.Lookatthescreenandfinishtheexerciseinthreeminutes.ThenIllcheckyouranswers.111111(TeachershowsthescreenandthestudentsbegintheirworkqCorrectmistakesifany.ulckly，)I.Ifyouworkedhardci,yoijwouldhavesucceeded.2.Thericewouldnotliaveburntifyouhi.6.HowIwishIhadbeenabletosaytheruleswithoutamistake!Suggestedanswers:1. worked11hadworked2. haveburnthavebeenburnt3. werebe4. willdid5. havegot6.7getStepIIIPresentationT:Inthisunit,wevetalkedalotabouthealthcareandsociety.Itisknowntousthatthegovernmenthasmadegreateffortstoimprovehealthcare.However,therearesomepersonswhohavealsomadegreatcontributi.onstohealthcare.Doyouknowwhatkindsofpersontheyare?Ss:Itmustbedoctors,nurses,chemistsandmedicinescientists.T:Youareright.Forexample,in1928,ayoungScottishscientistdiscoveredachemicalthatwasveryeffectiveincuringinfections.Doyouknowwhohewas?Ss:AlexanderFleming.T:Whatdidhecallthechemical?Ss:Penicillin.T:Yes.ItwasFlemingsgreatdiscoverythatchangedhospitalsandhealthcareforever.Thankstohisdiscovery,manyliveshavebeensaved.Today,wearegoingtoreadapassageaboutAlexanderFlemingandhisdiscoverypenicillin.First,let1111slearnthenewwordsinit.1(Teachershowsthefollowingonthescreenanddealswiththenewwordsasusual.)Amould/mOUld/靈；霉菌；气质Arisky/rlskl/adj.危险的；冒睑的AAlexanderFleming/llgsCLTclaflEmll/亚历山大弗莱明incidenl/Insldanl/m事情；(政治性)事件signiTicjancje/slgnlflkans/n.意义；意思；重要性bench/LenlJ/n-枝鹫sink/slljk/他洗祿槽jar/dga：/!.瓶;罐子;坛子lid/lid/氐盖子；眼睑Apenicillin/penlllm/氐青霉素devolion/dTVauJn/氐献身;忠心Aaggressive/Sreslv/adj.有进取心的；过分自信的;侵略的StepIVReadingT:OK.Now,pleaseopenyourbooksatPage79.ReadthepassageTheLittleMouldThatCouldsilentlyandquickly.Thenfinishthefirstexerciseafterit.Fiveminuteslater,IllcheckyourT:Well,youveunderstooditverywemoreexactmeaningofthetext,letslearnEXT段aiWS3.D4.B5.Bsomesentencesinit.OK?Ss:OK.(Teachershowsthesentencesonthescreen.)Treatmentwereneitherscientificnoreffective,andmanypatientssuffereddeadlyinfectionasaresultof.Hi.2. Thismedicalwasabletofightmildinfections,butitwasnotstrongenoughtocureseriousinfections.3. Despitetheirlackofinterest,Flemingkepttryingtodevelopthechemicalspthatitwouldbesafeandelective.4.1twasnotuntilWorldWarIIthattheimportanceofFlemingsdiscoverywasfullyrecognized.5.Whenaskedabouthisdiscovery,SirAlexanderFlemingsaid,“Onesometimesfindswhatoneisnotlookingfor.”T:Nowlookatthesentencesonthescreen.IllasksomestudentstotranslatethemintoChinese.Onestudent,onesentence.TheotherslistencarefullyandtelliftheirtranslationsareS黑疗既不科学，也没什么效果，许多病人手术后严重感染。T：s2：这种药物能治疗轻微的感染，但对于严重感染，其药效还不够强而不能治愈。s3：尽管其他科学家对弗莱明的发现不感兴趣，但他还是继续努力研制这种药物以使其安全而有效。S4：直到二战，弗莱明发现的药物的重要性才被完全接受。S5：当有人问及亚历山大弗莱明自己的发明时，他说：“一个人有时会发现他自己并未寻找的东西。(Bb：neither.nor,asaresultof,enoughto.,lackof,keepdoing,sothat,Itwasnotuntil.that.,whendone.)T:Youalldidgoodjobs.NowletsgoontodoEx.2.WorkinpairsandchoosewhichofthecharacteristicsbelowdoyouthinkhelpedAlexanderFlemingdiscoverpenicillin.Atthesametime,explainyourchoices.Tfnecessary.redthetextcarefullyagain.Youcanbeginnow.(Severalminuteslater,teachercheckstheirwork.)T:Areyoureadynow?T:Weft,who,dliketo.bethefirsttotalkaboutyourchoice?1_S6：Iwill.Inmyopinion,itwasadoctorssenseofresponsibilitythathelpedAlexanderFlemingdiscoverpenicillin.Withthischaracteristic,hedevotedhimselftohisdutyandobservedS：IthinkitwasthecharacteristicsofsympathythathelpedAlexanderFlemingdiscoverpenicillin.Withoutsympathy,hewouldnotmakeeffortstosearchforthechemicalwhichhebelievedcouldtreatinfections.S8:T：Well,allyourchoicessoundreasonable.Afterclass,goontoaskaboutotherschoices.Now,letslistentothetapeofthepassageandfurtherunderstandit.Ready?(TeOcherplaysthetape.Afterlistening,teacherbeginstodealwiththenextpart.)StepVWritingT:NowimaginethatyouareAlexanderFleming.Youhavejustdiscoveredpenicillinandyouareveryexcitedabout