人教版英語必修五Unit1(JohnSnowdefeats-KingCholera)教學教案

英語教學設計JohnSnowDefeatsKingCholera”Unit1JohnSnowDefeatsKingCholeraTeachingGoals:EnabletheSstogettoknowsomeknowledgeaboutCholera.EnabletheSstounderstandthepassagewell.LettheSslearnsomereadingskillsbyscanningandskimming.Tolearnfromthegreatscientistsanddevelopthenoblespirits.keypoints:Totrainthereadingskillsofskimming,scanningandcarefulreading;Tomasterthedetailsofthepassageandappreciatethespiritsofthescientists.DifficultpointsTodevelopthestudents’abilityofgraspingthemainideaofeachparagraph.Togetsomedetailedinformationbyreadingthetext.TeachingmethodsSkimming&scanningDiscussionmethodsPairworkofgroupCompetitionTeachingprocess:Step1Leadin本單元標題是偉大的科學家。 所以活動的設置為讓學生說出自己熟知的科學家姓名、 其發(fā)明、工作、生活的情況。 任務簡單， 學生感興趣。然后教師通過多媒體呈現(xiàn)相關科學家及其成就的圖片和文字。 既能讓學生體會到本堂課的主題， 又能激發(fā)學生的好奇心和求知欲， 營造一種寬松和活躍的課題氛圍，為下一步教學做了很好的鋪墊。task1.Namesomefamousscientistsyouknowandtellsomethingaboutthem.CharlesDarwin---HewasBritish.HewrotetheOriginofSpecies.ThomasEdison---HewasanAmericaninventor.Heinventedelectriclight.StephenHawking---HeisaBritish.Hestudiedblackholesofspace.Step2.ReadingTask1:Lookatthetitleofthepassage.DoyouknowthescientistJohnSnow?Whatwashefamousfor?Whatdoyouknowabout“KingCholera”?設計意圖 :強調學生要注意根據標題來猜測文章主要大意的閱讀技巧并補充一些有關霍亂和"JohnSnow”的背景知識，使學生能夠更好的理解全篇文章。BackgroundintroductiontoJohnSnowJohnSnow(1813-1858)wasbornandworkedasadoctorinGreatBritain.Hewasoriginallyananesthetist(麻醉師).Hewassofamous

thathebecamethedoctorforQueenVictoriaatthebirthsofhermanychildren.Fouroutbreaksofcholerainthe1830sand1840skilledmanypeopleinEngland.In1854,themostterribleoutbreakkingdombegan.Itwassoofcholerawhicheveroccurredintheviolentandsuddenthat127peoplediedinthefirstthreedays.kingdombegan.ItwassoSomeknowledgeaboutCholeraCholeraistheillnesscausedbyabacteriumcalledVariancholera.Ifitinfectspeoplesintine）s,（itmaycausediarrhea（Ifitinfectspeoplesintine）s,（itmaycausediarrhea（腹瀉）,vomiting（嘔吐）andcramps（腹痛）.Themostcommoncauseofcholeraisbyeatingfoodordrinkingwaterthathasbeenpollutedbythebacteria.Choleracanbemild（不嚴重的 ）orevenwithoutsymptoms（癥狀）,butwithoutimmediatetreatmentaseverecasecanleadtodeath.Task2:SkimmingReadingthepassagequicklyandanswerthequestion.What’sthemainideaofthepassage?JohnSnowwasawell-knowndoctorinLondon.ThecauseofCholerawaspollutedwater.Thesourceofalldrinkingwatershouldbeexamined.HowJohnSnowcollected,analyzeddataandfoundthecauseofthediseaseandsolvedit.themainideaofeachparagraph:（pairwork）Para1:Findaproblem (Whatcausescholera?)Para2:Makeaquestion(Whichtheoryiscorrect?)Para3:Thinkofamethod(Gatherinformationonthosewhowereillordied.)Para4:Collectresults(Putinformationonamaptofindoutwherepeoplediedordidnotdie.)Para5:Analyzetheresults(Analyzethewatertoseeifthatisthecauseofthe川ness.)Para6:Findsupportingevidence(Findotherevidencetosupporttheanalysis.)Para7:Drawaconclusion(Itwascertainthatpollutedwatercarriedthedisease.)設計意圖：讓學生基本了解本文文章的章節(jié)安排和文章的主線。這一環(huán)節(jié)要求學生在規(guī)定的時間內通過快速瀏覽文章得出其大意， 初步了解文章的主要內容，幫助學生理清文章的脈絡，培養(yǎng)學生領悟和分析語篇的能力。Task3:Scanning(Discussion)Numbertheseeventsintheordertheyhappened.JohnSnowbegantotesttwotheories.AnoutbreakofcholerahitLondonin1854.JohnSnowmarkedthedeathsonamap.Heannouncedthatthewatercarriedthedisease.___JohnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.___KingCholerawasdefeated.___Hefoundthatmostofthedeathswerenearawaterpump.___Hehadthehandleremovedfromthewaterpump.設計意圖：復現(xiàn)課文內容，理清 JohnSnow打敗霍亂王的整個過程。Task4:Detailedreading(competition)Readthetextparagraphbyparagraphtogetdetails.Paragraph1Whatwasthemostdeadlydiseasein19thcentury?Why?Whencouldthecholerabecontrolled?Paragraph2Makeaquestion:Whichtheorytobelievein?Idea1 Idea1 Paragraph3-4Whatmethoddidheuse?AmapofBroadstreetParagraph5Analyzetheresults:Whathappenedtothepumpwater?ThewaterwasfromtheriverpollutedbythedirtywaterfromLondon.Paragraph6-7Findsupportingevidence:Whatextraevidencedidhefind?Awomanandherdaughterwholivedfarawaybutdrankthewateralsodied.Thepollutedwatercarriedthedisease.設計意圖：通過尋讀，使學生快速獲取對課文細節(jié)的理解，問題啟動學生閱讀思考，層層遞進，使學生通過回答問題重現(xiàn) JohnSnow一步一步論證水是霍亂傳播的緣由的過程。 通過解析地圖得出推測， 接著強調科學研究的嚴謹性， 必須對推測進行論證， 并找到支持的論據才能最后得出結論、給予建議。用環(huán)環(huán)相扣的問題，使學生感悟到科學家的周密觀察、勇于探索、認真分析的科學精神 .Task5SummaryReadthetextagainandretellit.JohnSnow,an___,___QueenVictoriaasherpersonal___.Hewantstofacethechallengetohelppeople___tocholera.Hebecameinterestedintwotheoriespossibly___howcholerakilledpeople.Theory1suggestedcholera___intheair;theory2impliedpeople thisdisease theirbodies.JohnSnow thesecondtheorywascorrectbutheneeded .Heusedthenext tobeginhis .Valuable___aboutthecauseofthediseasewerefoundoutnear

thewaterinBroadStreet.Itseemedthatthewaterwas.JohnSnow____thesourceofthewateronlytofindthatitcamefromthewaterbythedirtywater.Sothehandlewas__andsoon__thedisease .SupportingevidencewastheBroadStreetOutbreak,JohnSnowwa