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GreatScientistsUnit1Scientists:()AlexanderBellA:electricity(C)ThomasEdisonB:theFirsttelephone(F)WrightBrothersC:theelectricLamp(G)MadameCurieD:blackholesinUniverse(A)FranklinE:TheoryofGravity(D)StevenHawkingF:theFirstPlane(H)ElbertEinsteinG:Radium(E)IsaacNewtonH:theTheoryofRelativitydrawaconclusionThinkofamethodCollectresultsMakeaquestionFindaproblemAnalysetheresultsFindsupportingevidenceWhat’sthemainideaofthepassage?JohnSnowwasawell-knowndoctorinLondon.ThecauseofCholerawaspollutedwater.Thesourceofalldrinkingwatershouldbeexamined.HowdidJohnSnowcollectanalyzedataandfindthecauseofthediseaseandsolvedit.Fastreading:1.Findoutthemainidea(ortopicsentence)ofeachparagraph:ScientificReportbyJohnSnow1.Whycouldn’tthecholerabeundercontrolatfirst?Neitheritscausenoritscurewasunderstood3.WhyistherenodeathatNo.20and21BroadStreetaswellasatNo.8and9CambridgeStreet?4.WhatareJohnSnow’s2suggestions?1.examiningthesourceofallwatersupplies.2.Thewatercompaniesshouldn’texposepeopletopollutedwateranymore.No.Themapisofgreathelp.Usingthemaphefoundouttheplacewherepeoplesufferedfromthediseaseandthecauseofcholera.JohnSnowwasa__________doctorinLondoninthe___century.Hewantedtofindthe______ofcholerainorderto______________it.In1854whenacholera______outhebegantogatherinformation.He______onamapwhereallthedeadpeoplehadlivedandhefoundthatmanypeoplewhohaddrunkthedirtywaterfromthe______died.Sohedecidedthatthepollutedwatercarriedcholera.Hesuggestedthatthe______ofallwatersupplybe_________andnewmethodsof________withpollutedwaterbefound.Finally“KingCholera”was