高二英语Great Scientists课件8.ppt

Period2ReadingJohnSnowDefeats“KingCholera”,JohnSnow,Defeat,KingCholera,Studythetitle,Accordingtothepassage.pleaseputthe7stagesinrightorder,Fast-reading,Matchthem,Whatistheproblem?,Thecholerawasthemostdeadlydiseaseofitsday.Neitheritscause,noritscurewasunderstood.,Whatcausedcholera?,Details,makeupaquestion:Whichtheorytobelievein?,idea1,idea2,Choleramultipliedintheairwithoutreason.Acloudofdangerousgaswouldfloatarounduntilitfounditsvictims.,Peopleabsorbeditwiththeirmeals.,AmapofBroadStreet,Whatmethoddidheuse?,BroadStreet,Manydeathshappenedhere.,Nodeathhappenedhere.,Thewaterfromthepumpwastoblame.,Publichouse,analyzetheresults:Whathappenedtothepumpwater?,ThewaterwasfromtheriverwhichhadbeenpollutedbythedirtywaterfromLondon.,repeatifnecessary:Whatextraevidencedidhefind?,twootherdeaths,Awomanandherdaughterwholivedfarawaybutdrankthewateralsodied.,drawaconclusionwithcertainty,Thepollutedwatercarriedthedisease.,ScientificReportbyJohnSnow,Nobodyknewthecauseoftheseriousdiseaseofcholera,astrangecloudofgasfounditsvictims,peopleabsorbedthediseasewithmeals,Collectinformationfromthecholeraoutbreaktoprovewhichtheorywascorrect,Comprehending,Hefoundthecauseofcholerawasthepollutedwater,Idea2.Becausetheinformationshowedthatthedirtywatercarriedcholera,Hedefeatedcholerabyexaminingthewatersupplyanddealingwiththepollutedwater,Whatshouldwepayattentiontoinourdailylifeinordernottogetinfectedwithcholera?,Healthefoodleftovernight,Cookrawfoodthoroughly,Washhandsoften,Keepawayfromflies,choosefreshseafood,Keepthekitchenclean,Disposerubbishproperly.,Drinkboiledwater,discussion,Studytheposterfirstandthenyoupleasedesignaposter,introducingCholeratopeople,andinformpeopleofthewaystokeepawayfromgettinginfectedwithcholera.,Teamwork,1.Surftheinternettofindout:Whatshouldwepayattentiontoinourdailylifetopreventourselvesfromgettinginfectedwithalltheseinfectiousdiseases?2.Writedowntheimportantwordsandphrasesinyourexercisebooks.3.Underlinethedifficultsentencesthatyoucannotunderstand.,Homework,WhoisJohnSnow?,afamousdoctorinLondon.,Whathappenedtothem?,Itinfectspeoplesintestines(肠道),causingdiarrhoea(腹泻),vomiting(呕吐)anddehydration(脱水),ManydeathsinAfricancountriesin2005andevennow,5oodeathsin10daysin1854inLondon.,Spreadfromonepersontoanother.SoitisaninfectiousDisease.,infect/affectpeople,otherinfectiousdis