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1、高二英语必修五Unit 1 Great scientists教案Unit1GreatscientistsTheFirstPeriodReadingTeachinggoals教学目标.Targetlanguage目标语言a.重点词汇和短语attend,control,severe,pub,immediately,handle,instructor,pump,contribute,conclude,steamengine,virus,putforward,makeaconclusion,exposetob.重点句式Topreventthisfromhappeningagain,johnSnowsu
2、ggestedthat.P32.Abilitygoals能力目标Enablethestudentstotalkaboutscienceandscientists.3.Learningabilitygoals学能目标Enablethestudentstolearnaboutsomefamousscientistsandtheircontributionsandhowtoorganizeascientificresearch.Teachingimportant&difficultpoints教学重难点Talkaboutscienceandscientists.Teachingmethods
3、教学方法Task-basedactivities.Teachingaids教具准备Acomputerandaprojector.Teachingprocedures&ways教学过程与方式StepLead-inAskthestudentstothinkofsomegreatinventionsandinventorsinhistory.T:welcomebacktoschool,everyone.Iguessmostofyouhaveenjoyedyourholiday.maybeIshouldsayeveryonehasenjoyedascientificlife.why?Becau
4、seyouhaveenjoyedtheresultsofthescienceandscientists.Nowcanyoutellmethescientistswhoinventedthelights,thegramophoneandthecomputer?S1:Edisoninventedthelightsandthegramophone.S2:ThefirstcomputerwasinventedbyagroupofAmericanscientists.StepwarmingupFirst,asksomequestionsaboutgreatscientists.Second,askall
5、thestudentstotrythequizandfindoutwhoknowsthemost.T:youknowourlifeiscloselyrelatedtoscienceandscientists.webenefitalotfromthem.canyounameoutasmanyscientistsaspossible?S1:Newton.S2:watt.S3:Franklin.Sampleanswers:.Archimedes,AncientGreek,amathematician.2.charlesDarwin,Britain.Thenameofthebookisoriginof
6、Species.3.ThomasNewcomen,British,aninventorofsteamengine.4.Gregormendel,czech,abotanistandgeneticist.5.mariecurie,PolishandFrench,achemistandphysicist.6.ThomasEdison,American,aninventor.7.LeonardodaVinci,Italian,anartist.8.SirHumphryDavy,British,aninventorandchemist.9.ZhangHeng,ancientchina,aninvent
7、or.0.StepperHawking,British,aphysicist.StepPre-readingGetthestudentstodiscussthequestionsonpage1withtheirpartners.Thenaskthestudentstoreporttheirwork.Encouragethestudentstoexpresstheirdifferentopinions.T:Now,class,pleaselookattheslide.Discussthesequestionswithyourpartners.ThenIllasksomestudentstorep
8、orttheirwork.Showthefollowingonthescreen.whatdoyouknowaboutinfectiousdiseases?whatdoyouknowaboutcholera?Doyouknowhowtoproveanewideainscientificresearch?whatorderwouldyouputthesevenin?justguess.Sampleanswer1:S1:Letmetry.Infectiousdiseasescanbespreadeasily.Theyhaveanunknowncauseandmaydogreatharmtopeop
9、le.S2:Peoplecouldbeexposedtoinfectiousdiseases,somayanimals,suchasbirdflu.S3:AIDS,SARSareinfectiousdiseases.S4:Infectiousdiseasesaredifficulttocure.Sampleanswer2:S1:Iknowsth.aboutit.Firstweshouldfindtheproblem.Then,thinkofasolution.S2:weshouldcollectasmuchinformationaspossible.S3:Analyzingresultsist
10、hemostimportantstage.S4:Beforewemakeaconclusion,itisnecessaryforustorepeatsomestagesorprocesses.Sampleanswer3:S1:Ithink“Findaproblem”shouldbethefirststage.S2:“makeupaquestion”shouldfollowthefirststage.S3:“Thinkofamethod”,“collectresults”and“Analyzeresults”areafterthat.S4:ofcourse,before“makeaconclus
11、ion”,weshould“Repeatifnecessary”.T:welldone!whenwewanttosolvesomeproblems,firstweshouldfindouttheproblem,dosomeresearchonit,proveyourfindings,andthenmakeaconclusion.Thisisascientificandobjectivewayofresearching.NowletsseehowdoctorjohnSnowdidhisresearch.StepReadingLetthestudentsskimthewholepassageand
12、trytoworkoutthemeaningsofthenewwordsandstructuresusingcontext.T:TheeffectofcholerainthenineteenthcenturyLondonwasdevastating.manypeoplediedwithoutknowingthereason.ItwasdoctorjohnSnowwhosavedthepeople.Pleaselookatthescreen.Letsreadthewholepassageandfindanswerstothequestions.Showthequestionsonthescree
13、n.whatconditionsallowedcholeradevelop?2.whydoyouthinkpeoplebelievedthatcholeramultipliedintheairwithoutreason?3.whatevidencedidjohnSnowgathertoconvincepeoplethatidea2wasright?Sampleanswers:S1:Thedirtywatermadethecholeradevelopquickly.S2:Becausepeoplecouldnotunderstanditscauseandcouldnotgetitcured.So
14、peopleimaginedthatsomepoisonousgasintheaircausedthedeaths.S3:Hefoundthatmanyofthedeathswerenearthewaterpumpwhilesomeareasfarawayfromthewaterpumphadnodeaths.Sowhenpeoplewereaskednottousethewaterpump,thediseasebegantoslowdown.Inthisway,johnSnowhadshownthatcholerawasspreadbygermsandnotinacloudofgas.Ste
15、pTextanalyzingAskthestudentstoanalyzethetextingroups.T:Nowclass.canyoutellmewhatstyleofthepassagebelongsto?S1:Ithinkitisareport.T:Pleaselookatthechartonthescreen.ThechartshowsthateachparagraphofthetextexplainsjohnSnowsstagesinhisresearch.Pleasereadthetextandfindoutthegeneralideaofeachparagraphandmatchthestagewitheachparagraph.Discussitingroups,andthenreportyouranswers.ParagraphsStagesGeneralideas234567Sampleanswe
