必修五第一单元warming up & reading课件

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1、Unit1JohnSnowDefeats“KingCholera”ReadingWhatinfectiousdiseasesdoyouknowabout?Thingstodotopreventinfectiousdiseases:Washyourhandsoften,especiallyduringcoldandfluseason.Beawareofwhatyoueat,andbecarefulhowyouprepareit.Becautiousaroundallwildanddomesticanimalsthata

2、renotfamiliartoyou.CholeraistheillnesscausedbyabacteriumcalledVariancholera.Ifitinfectspeople’sintestines(肠胃),itmaycausediarrhea,vomitingandlegcramps(腹痛).Themostcommoncauseofcholeraisbysomeoneeatingfoodordrinkingwaterthathasbeenpollutedbythebacteria.Whatdoyoukn

3、owaboutcholera?Choleracanbemild(不严重的)orevenwithoutsymptoms(症状),butaseverecasecanleadtodeathwithoutimmediatetreatment.Doyouknowthisperson?JohnSnow(1813~1858)alegendaryfigureinthehistoryofpublichealth,epidemiology（流行病学）andanesthesiology（麻醉学）What’sthemainideaofthe

4、passage?JohnSnowwasawell-knowndoctorinLondon.ThecauseofCholerawaspollutedwater.Thesourceofalldrinkingwatershouldbeexamined.HowJohnSnowcollected,analyzeddataandfoundthecauseofthediseaseandsolvedit.FastreadingdUsethesevenstagesinsettingoutanewscientificideatodesc

5、ribeeachparagraph.CarefulreadingdrawaconclusionfindaproblemmakeupaquestionthinkofamethodcollectresultsanalysetheresultsfindsupportingevidencePara1Para2Para3Para4Para5Para6Para7FindaproblemWhatcausescholera?MakeaquestionWhichtheoryiscorrect?ThinkofamethodCollect

6、dataonthosewhowereillordiedandwheretheygottheirwater.Para.1Para.2Para.3Para.5AnalysetheresultsAnalysethewatertoseeifthatisthecauseoftheillness.Para.6FindsupportingevidenceFindotherevidencetosupporttheanalysis.Para.7DrawaconclusionThewaterwastoblame.Thesourceofa

7、lldrinkingwatershouldbeexaminedtomakesureitissafe.Para.4CollectresultsPlotinformationonamaptofindoutwherepeoplediedordidnotdie.HomeworkLearnmoreaboutgreatscientists.Reviewthevocabulary.Readthetextcarefully.