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1、人教版高中英语必修5教案Unit 1 Great scientistsUnit1GreatscientistsTeachingaims1.Tohelpstudentslearntodescribepeople2.TohelpstudentslearntoreadanarrationaboutjohnSnow3.Tohelpstudentsbetterunderstand“Greatscientists”4.Tohelpstudentslearntousesomeimportantwordsandexpressions5.Tohelpstudentsidentifyexamplesof“TheP
2、astParticipleasthePredicative&theattribute”Period1warmingupandreadingTeachingProceduresI.warmingupStepILeadinTalkaboutscientist.T:Hi,morning,class.Nicetoseeyouonthisspecialday,thedaywhenyoubecomeaseniortwograder.IamhappytobewithyouhelpingyouwithyourEnglish.Todaywearetoreadaboutacertainscientist.
3、Butfirstletsdefinetheword“scientist”.whatisascientist?Ascientistisapersonwhoworksinscience,tryingtounderstandhowtheuniverseorotherthingswork.Scientistscanworkindifferentareasofscience.Herearesomeexamples:Thosethatstudyphysicsarephysicists.Thosethatstudychemistryarechemists.Thosethatstudybiologyarebi
4、ologists.StepIIAskthestudentstotrythequizandfindoutwhoknowsthemost.T:Therearesomegreatscientificachievementsthathavechangedtheworld.canyounamesomeofthem?whatkindofroledotheyplayinthefieldofscience?Dotheseachievementshaveanythingincommon?matchtheinventionswiththeirinventorsbelowbeforeyouanswerallthes
5、equestions.1.Archimedes,AncientGreek,amathematician.2.charlesDarwin,Britain.ThenameofthebookisoriginofSpecies.3.ThomasNewcomen,British,aninventorofsteamengine.4.Gregormendel,czech,abotanistandgeneticist.5.mariecurie,PolishandFrench,achemistandphysicist.6.ThomasEdison,American,aninventor.7.Leonardoda
6、Vinci,Italian,anartist.8.SirHumphryDavy,British,aninventorandchemist.9.ZhangHeng,ancientchina,aninventor.10.StepperHawking,British,aphysicist.II.Pre-readingStepIGetthestudentstodiscussthequestionsonpage1withtheirpartners.Thenaskthestudentstoreporttheirwork.Encouragethestudentstoexpresstheirdifferent
7、opinions.1.whatdoyouknowaboutinfectiousdiseases?Infectiousdiseasescanbespreadtootherpeople.Theyhaveanunknowncauseandneedpublichealthcaretosolvethem.Peoplemaybeexposedtoinfectiousdisease,somayanimals,suchasbirdflu，AIDS,SARSareinfectiousdiseases.Infectiousdiseasesaredifficulttocure.2.whatdoyouknowabou
8、tcholera?choleraistheillnesscausedbyabacteriumcalledVibriocholerae.Itinfectspeoplesintestines,causingdiarrheaandlegcramps.Themostcommoncauseofcholeraisbysomeoneeatingfoodordrinkingwaterthathasbeencontaminatedwiththebacteria.choleracanbemildorevenwithoutimmediatesymptoms,butaseverecasecanleadtodeathw
9、ithoutimmediatelytreatment.3.Doyouknowhowtoproveanewideainscientificresearch?Anybodymightcomeoutwithanewidea.Buthowdoweproveitinscientificresearch?Therearesevenstagesinexamininganewideainscientificresearch.Andtheycanbeputinthefollowingorder.whatorderwouldyouputthesevenin?justguess.Findaproblemmakeup
10、aquestionThinkofamethodcollectresultsAnalysetheresultsDrawaconclusionRepeatifnecessaryIII.ReadingStepIPre-readingDoyouknowjohnSnow?johnSnowisawell-knowndoctorinthe19thcenturyinLondonandhedefeated“kingcholera”.Doyouknowwhatkindofdiseaseischolera?Itisakindofterriblediseasecausedbydrinkingdirtywaterand
11、itcausedalotofdeathsintheoldtimesanditwasverydifficulttodefeat.LetsgettoknowhowDr.johnSnowdefeated“kingcholera”in1854inLondoninthisreadingpassage:StepIISkimming找教案http:/Readthepassageandanswerthequestions.1.whodefeats“kingcholera“?2.whathappenedin1854?3.Howmanypeoplediedin10days?4.whyistherenodeatha
12、tNo.20and21BroadStreetaswellasatNo.8and9cambridgeStreet?Skimthepassageandfindtheinformationtocompletetheformbelow.whowhenwhatHowResultjohnSnow1854helpingordinarypeopleexposedtocholeraExaminingthesourceofallwatersuppliesandfindingnewmethodsofdealingwithpollutedwaster“kingcholera”defeatedStepIIIScanni
13、ngReadthepassageandnumbertheseeventsintheorderthattheyhappened.2johnSnowbegantotesttwotheories.AnoutbreakofcholerahitLondonin1854.4johnSnowmarkedthedeathsonamap.7Heannouncedthatthewatercarriedthedisease.3johnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.8kingcholerawasdefeated.5Hefoundthat
14、mostofthedeathswerenearawaterpump.6Hehadthehandleremovedfromthewaterpump.StepIVmainideaandcorrectstage找教案http:/Readthepassageandputthecorrectstagesintothereadingaboutresearchintoadisease.johnSnowDefeats“kingcholera”ParagraphStagesGeneralideas1Findaproblem:whatcausethecholera?Thecausesofcholera2makeu
15、paquestion:whichisright?Thecorrectorpossibletheory3Thinkofamethod:Testtwotheorycollectdataonwherepeoplewereillanddiedandwheretheygottheirwater4collectresults:markthedeathPlotinformationonamaptofindoutwherepeoplediedordidnotdie5Analyzetheresults:FindtheresourceofthewaterLookintothewatertoseeifthatisthecauseoftheillness6FindsupportingevidenceFindotherevidencestoconfirmhisconclusion7DrawaconclusionThepolluteddirtysourceofdrinkingwaterwastoblameforthecauseoftheLondoncholeraStepVGroupdiscussionAnswerthequestions1.johnSnowbelievedIdea2wasright.Howdidhefinallyproveit?2.DoyouthinkjohnSnowwouldhav
