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2whichtheorydidjohnSnowbelievein?

Peopleabsorbedcholeraintotheirbodieswiththeirmeals.

3johnSnowfinallyprovedthetheoryhebelievedby________. gatheringinformationwiththehelpofamap

lookingintothesourceofthewaterforBroadStreetandcambridgeStreet

Separatingthosewhosufferedcholerafromthosewhodidn’t BothAandB

4Topreventthecholerafromspreadingagain,whatdidjohnSnowdo?

Suggestedthatthesourceofallwatersuppliesbeexamine.Suggestedthatnewmethodsofdealingwithpollutedwaterbefound.Instructedthewatercompaniesnottoexposepeopletothepollutedwateranymore. Step4mindmapofthepassage

Paragraph1:IntroductionofjohnSnowandcholera

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Paragraph2:Twotheory

Paragraph3-5:Studyofthebreakoutin1854 Paragraph3:Thinkofamethod:Testtwotheory collecttheresult:markthedeath

Analyzetheresult:Reasonfordeathandnodeath

Paragraph4:Analyzetheresult:Findtheresourceofthewater

Paragraph5:Repeatifnecessary:Findmoreevidence. Drawaconclusion:cholerawasspreadbygerm Pollutedwatercarriedcholera Paragraph6:Preventionofcholera Step5.carefulreading

.AsktheSstoreadthetextcarefullyandthenfinishthechartinEx.1onpage3.

ScientificReportbyjohnSnow Theproblem

Nobodyknewthecauseoftheseriousdisease ofcholera. Thecause

Idea1:strangecloudintheairthatattackedvictims. Idea2:peopleabsorbedthediseasewiththeirmeals.

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Themethod

collectdatafromthenextcholeraattacktotesttheories.Trytoprovewhichmethodwascorrect. Theresults

Hefoundthecauseofcholerawasthepollutedwater. Idea1or2?why?

Idea2.Becausethedatashowedaconnectionwiththewater. Theconclusion

johnSnowwasabletodefeatcholeraonceitscausewasknown. Step6Retellthepassage

Providesswithasummarywithsomeblanks.Letthemretellthepassageaswellaspayattentiontosomeimportantwords. Readthepassageagainandfillintheblanks:

johnSnowwasawell-known____inLondoninthe___century.Hewantedtofindthe______ofcholerainorderto______it.In1854whenacholera____out,hebegantogatherinformation.He_____onamapwhereallthedeadpeoplehadlivedandhefoun

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dthatmanypeoplewhohaddrunkthedirtywaterfromthe______died.Sohedecidedthatthepollutedwatercarriedcholera.Hesuggestedthatthe_____ofallwatersupplybe_______andnewmethodsof________withpollutedwaterbefound.Finally,“kingcholera”wasdefeated. Step7Languagepoints .attend v.

tobepresentat;goto出席，参加 Hedecidedtoattendthemeetinghimself. togiveone’sattention;listen注意，倾听 Areyouattendingtowhatisbeingsaid? tolookafter;serve照顾，护理 Ihaveagooddoctorattendingme. togowith伴随，陪伴

Dangerattendedeverythinghedid.他做的每一件事都带有危险。 attendance n.照顾：出席人数

Thereisadoctorinattendance.有一位医生照顾。 Therewasalargeattendanceattheconcert.音乐会听众很多。

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