【公開課】Unit+1Reading+and+thinking+課件（2019）選擇性必修第二冊+

Unit1ScienceandScientists

ReadingandThinking

JohnSnowDefeats“KingCholera”Leadin

Areyoufamiliarwiththesesituations?RunnucleicacidtestsGetvaccinatedSelf-isolation/?a?s??le??n//?v?ks?ne?t?d/④Besidescoronavirus,whatotherkindsofepidemics（流行?。ヾoyoukonw?bird-flu（禽流感）malaria[m??leri?]（瘧疾）plague[ple?ɡ]（鼠疫）Ebola[??b??l?](埃博拉)①②③WhoHelpedDefeatMalaria?bird-flu（禽流感）malaria（瘧疾）plague（鼠疫）Ebola(埃博拉)Whatwillbetalkedaboutaccordingtothetitle?JohnSnow

Defeats“KingCholera”Who?打敗，戰(zhàn)勝How?What?1.WhowasJohnSnow?

2.WhatisKingCholera?

3.HowdidJohnSnowdefeatKingCholera?Readthewholetextquicklyandmatchthemainideas.Para.1Para.2Para.4Para.5JohnSnowdesiredtodestroycholera.JohnSnowdecidedtoprovethesecondtheory.Snowbeganhisstudybymarkingonthemap.Truthoftheinfectionofcholera.Snow'scontributions.Para.3readforthedetailstheimformationcardsPara1Who&What?JohnSnow(nationality,occupationanddesire)Cholera(identity,symptomsandconsequence)a______________________doctorbecame_________never_________________________________onceandforallBritish,youngandfamous_____________QueenVictoriaattendedtofrustratedlosthisdesiretodestroycholeraoneof__________________diseasescausessevere______________________________________millionsofpeople__________thediseaseintheearly19thcenturythemostfeareddiarrhoea,dehydrationandevendeathdiedfromread

Para.2&3,finishexercise3onPage3(flowchart)Para.2contradictorytoagreewithorsupportanopinion,atheory,etc.proofsubscribetoTwocontradictorytheoriesTheoryone:causedby________Theorytwo:causedby_______SymptomsSymptomscoughsneezerunnynoselungdiarrhoeadehydration?badairgermsSnowsubscribedtothesecondtheory.Para.2Findaproblem

Para.2investigatedeterminedtocarefullyexaminethefactsorfindoutthetruthorhowithappenedPara.2AskaquestionWhatdidJohnSnowinvestigatewhenanotheroutbreakhitLondonin1854?Hediscoveredthatintwoparticularstreetsthecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.Hewasdeterminedtofindoutwhy.HOWAmapofBroadStreet-”CholeraMap”WhatmethoddidSnowuse?AmapofBroadStreet-”CholeraMap”Whichhouseshadmorethan4deathsinBroadStreet?WhichhouseshadnodeathinBroadStreet?Multipledeathshappenedhere.Nodeathhappenedhere.Hesuspectedthatthewaterfromthepumpwastoblame.

Thinkofamethod&Collectdata&AnaysetheresultsPara.3Findsupportingevidence&DrawaconclusionPumpwatercarriedthecholeragerms.TwodeathsPlacePersonEventInanotherpartofLondonAwomanandherdaughterDiedofcholerabecauseofdrinkingthewaterdeliveredfromthepumpRemove

thehandleofthepumpThediseasewasstopped.Para.3A:Itwasbelievedthatcholerawascausedbybad____orgermsin_______________.B:Snow___________________theplaces

wherethepeoplewho_____hadlivedC:Manydeathsoccurrednearthe___________inBroadStreet.Somepeople__________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter________________________.D:Thepumpwatercarried____________.conclusionevidenceE:The_______ofthepumpwasremoved.processsolutionhandletheoriesairfoodorwatermarkedonthediedwaterpumphadn’tdrinkingwatercholeragermsChecktheanswersonPage3.conclusionevidenceprocesssolutiontheoriesmapfromthepumpPara.4-51.WhatcausedtheoutbreakofcholerainLondon?A.BadairB.WaterinfectedbyrawwasteC.PollutedairD.Waterpollutedbytheair2.WhywasJohnSnowcalledthefatherofmodernepidemiology(流行病學）?Hehelpedpeopleknowhowtopreventcholera.Hetransformedthewayscientistsstudydiseasesinuseofmapandstatistics.Wascholeradefeatedcompletely?Howtopreventthecholera?Para.4-5Wascholeradefeatedcompletely?Howtopreventthecholera?Topreventcholerafromspreading,we'dbetter

drinkpureorboiledwaterandeatcleanfood.Para.4-5Post-readingⅢFillintheblanksaccordingtothetext.

Intheearly19thcentury,anoutbreakofcholerahitEurope,_______(cause)millionsofdeaths.Seeingthis,JohnSnowbecamefrustratedbecausenooneknewhow_________(prevent)ortreatcholera.Atthattime,doctorshadtwotheoriestoexplainhowcholeraspread.Onewasthatbadaircausedthediseaseandanotherwasthatcholerawascausedbygermsinfoodorwater.Johndiscoveredthatintwoparticularstreet_____choleraoutbreakwas____severethatover500peoplediedintendays.Throughhisserious____________(investigate),hefounditwasthepumpwaterinBroadStreet_______resultedinthedisease.Therefore,hehadthehandleofthepump________(remove).causingtopreventthesoinvestigationthatremovedItturnedoutthatthewaterfromthepump_______________(infect)bywaste.ThroughSnow'stirelessefforts,watercompaniesbegantosellcleanwater,andthethreatofcholeraaroundtheworldsaw____substantialdecrease.Snowtransformedtheway________________scientistsstudydiseases.Forthisreason,heisconsideredthefatherofmodernepidemiology.Fillintheblanksaccordingtothetext.hadbeeninfectedthat/inwhichaAsadoctor,hehe