Unit1 Science and Scientists Reading and Thinking高中英语人教版（2019）选择性必修第二册.pptx

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Unit1 Science and Scientists Reading and Thinking高中英语人教版（2019）选择性必修第二册.pptx

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LearningObjectivesFindoutthestagesofscientificresearchinthispassage.LearnaboutJohnSnow’sresearchprocessExpressyourideaonthegiventopicthroughcreativethinking

大单元主题教学

Lead-inGreatscientistswehavelearnt

Lead-inAccordingtothesepictures,Whatkindofdiseasedoyouthinkitis?COVID-19

Whatotherkindsofepidemics（流行病）doyouknow?bird-flu（禽流感）malaria（疟疾）plague（鼠疫）Ebola(埃博拉)Lead-in

VideoTime:Howmuchdoyouknowaboutcholera?

Whatarethesymptoms(症状)ofCholera？Itbeginsinthestomachandaseverecasecanleadtodeathwithoutimmediatetreatment.dehydration(缺水)severevomiting(呕吐)diarrhea(腹泻)

Manyyearsago,thecholeraintheworldkilledmillionsofpeople.Peoplewereveryafraidofit,buttheydidntknowwhattodo.Luckily,Idecidedtofindouthowtopreventandtreatthedisease.Finally,Iwonthebattle.

StagesinscientificresearchDrawaconclusionCollectdataAskaquestionFindaproblemAnalysetheresultsFindsupportingevidenceThinkofamethod

PredictionWhatwillbetalkedaboutfromthetitle?JohnSnowDefeats“KingCholera”Who?How?What?WhyCholerawascalled“King”atthattime?Becauseitclaimed/tookalotoflives.

Readthewholetextquicklyandmatchthemainideas.

Readthewholetextquicklyandmatchthemainideas.Para.1Para.2Para.4Para.5JohnSnowdesiredtodestroycholera.JohnSnowdecidedtoprovethesecondtheory.Snowbeganhisstudybymarkingonthemap.Truthoftheinfectionofcholera.Snowscontributions.Para.3

Cholerausedtobeoneofthemostfeareddiseasesintheworld,untilaBritishdoctor,JohnSnow,showedhowitcouldbeovercome.Thisillnesscausesseverediarrhoea,dehydrationandevendeath.Intheearly19thcentury,whenanoutbreakofcholerahitEurope,millionsofpeoplediedfromthedisease.Asayoungdoctor,JohnSnowbecamefrustratedbecausenooneknewhowtopreventortreatcholera.Intime,herosetobecomeafamousdoct