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Unit1SCIENCEANDSCIENTISTSLearningObjectivesFindoutthestagesofscientificresearchinthispassage.LearnaboutJohnSnow’sresearchprocess.Expressyourideasonthegiventopicthroughcreativethinking.While-readingReadfortheimformation.Para2&3How?Anyotherevidence?Whatresultdidheget?Snowsuspectedthatthewaterpumpwastoblame.AwomanandherdaughterdiedinanotherpartofLondonafterdrinkingwaterfromthepump.JohnSnowwasabletoannouncethatthepumpwatercarriedcholeragerms.JohnSnowhadthehandleofthepumpremoved.Thediseasewasstopped.ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Moreover,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiverThames

thatwaspollutedbyrawwaste.Thepeoplewhodrankthiswater

weremuchmorelikelytogetcholerathanthose

whodrankpureorboiledwater.ReadthePara4andfindthecomplexsentencesandusefulphrases.【

】【】【】【

】ThroughSnow’stirelessefforts,watercompaniesbegantosellcleanwaterandthethreatofcholeraaroundtheworldsawasubstantialdecrease.However,choleraisstillaproblem.Eachyear,millionsofpeoplearoundtheworldgetcholeraandmanydiefromit.Fortunately,wenowknowhowtopreventcholera,thankstotheworkofJohnSnow.Moreover,inhisuseofmapsandstatistics,Snowtransformedthewayscientistsstudydiseases.Forthisreason,Snowisconsideredthefatherofmodernepidemiology.ReadthePara5andfindthecomplexsentencesandusefulphrases.

【

】Readforthestages.ThinkofamethodCollectdata

AnalysetheresultsFindsupportingevidenceDrawaconclusionFindasolutionWhile-readingReadfortheimformation.Para4&5ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Watercompaniesbegantosellcleanwater.Thethreatofcholeraaroundtheworlddecreased.Hehelpedpeopleknowhowtoprevent

cholera.Snowtransformedthewayscientistsstudydiseases.2.WhatcontributionsdidJohnSnowmake?TheFatherofModernEpidemiology1.WhatcausedtheoutbreakofcholerainLondonin1854?A:Itwasbelievedthatcholerawascausedbybad____orgermsin_______________.B:Snow____________theplaces

wherethepeoplewho____hadlivedC:Manydeathsoccurrednearthe__________inBroadStreet.Somepeople__________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter_____________________.D:Thepumpwatercarried__________.Matchthefollowingheaderswiththelettersfromthechartabove.WriteA-Eintheblanks.conclusionevidencehandleprocesssolutiontheoriesReadthepassageagainandcompletethechartbelow.E:The_______ofthepumpwasremoved.airfoodorwatermarkedondiedwaterpumphadn’tdrinkingwaterfromthepumpcholeragermsPost-readingInordernottogetinfectedwithdisease,whatshouldwepayattentiontoinourdailylife.Drinkboiledwater.Remembertowearamaskwhengoingout.Heatthefoodleftovernight.Washyourhandsoften.Cookrawfoodthoroughly.Dealwithrubbishtimelyandproperly.Post-readingTu

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