英语人教版二年级必修3 reading

JohnSnowDefeats“KingCholera”,Doyouknowwhatdidthismapwasusedforin1854?,FindingoutthecauseofCholera.,Who?,DoyouknowJohnSnow?,JohnSnowisawell-knowndoctorinthe19thcenturyinLondonandhedefeated“KingCholera”.,whatischolera?,Itisakindofterriblediseasecausedbydrinkingdirtywateranditcausedalotofdeathsintheoldtimesanditwasverydifficulttodefeat.,cholera,BroadStreet,king,JohnSnowbelievedthatcholeracamefromdrinkingpollutedwater.Henoticedthediseasebeganinthestomachandthatthevictimsdiedveryquicklyfromalossofliquidafterseverevomitinganddiarrhoea.Before1854heputforwardthetheorythatpollutedwaterspreadcholerabutitdidnotreceivemuchattention.Thenin1854hewasabletoprovethathistheorywascorrect.Hewasimportantbecausehewasthefirstpersontogatherinformationscientificallyaboutadiseasetofinditscause.,Bacteriaofcholera,JohnSnow经过流行病学调查推论：“霍乱患者的粪便含有能繁殖的病毒，霍乱在人群中的传播途径主要是被患者粪便污染的水源”1883年，RobertKoch最终发现了霍乱弧菌（Vibriocholera）,JohnSnow约翰斯诺（18131858），英国麻醉学家、流行病专家。他首次提出了预防霍乱的措施。1854年，伦敦霍乱流行，斯诺通过研究霍乱病死者的日常生活情况，寻找到他们的共同行为模式，发现了霍乱与饮用不洁水的关系，由于及时切断了二者的联系，有效制止了霍乱的流行。,Whodefeats“KingCholera“?Whathappenedin1854?Howmanypeoplediedin10days?WhyistherenodeathatNo.20and21BroadStreetaswellasatNo.8and9CambridgeStreet?,JohnSnow,CholeraoutbreakhitLondon.,500,ThesefamilieshadnotdrunkthewaterfromtheBroadStreetpump.,SkimandScan,Whatsthemainideaofthepassage?JohnSnowwasawell-knowndoctorinLondon.ThecauseofCholerawaspollutedwater.Thesourceofalldrinkingwatershouldbeexamined.HowdidJohnSnowcollect,analyzedataandfindthecauseofthediseaseandsolvedit.,Readandanswer:,Paragraph1:Trueorfalse:1.KingCholeraisthedeadlydisease.2.JohnSnowthoughtcholerawouldneverbecontrolled.Whatsthetopicsentence?,F,F,JohnSnowwantedtousehisknowledgetohelpsolvethisproblem.,Paragraph2,Whatsthetwotheories?Inyourwords.Whichoneismorereasonable?,Paragraph3,Whatshismethod?Whatstheresult?,Collectdatafromthenextcholeraattacktotesttheories.Trytoprovewhichmethodwascorrect.,Hefoundthecauseofcholerawasthepollutedwater.,Paragraph4,Whenthecausewasfound,whatdidthepeopledo？,Removethehandlefromthewaterpumsoitcouldnotbeused.,Paragraph5,Whatstheextraevidence?Whycouldthepollutedwatercarrythedisease?,TwootherdeathsinanotherpartofLondonthatwerelinkedtotheBroadStreetoutbreak.,Becausecholerawasspreadbygermsandgermscanbecarriedbythepollutedwater.,Paragraph6,WhatareJohnSnowssuggestions?,Thesourceofallwatersuppliesshouldbeexamined.Newmethodsofdealingwithpollutedwatershouldbefound.Thewatercompanieswerealsoinstructednottoexposepeopletopollutedwateranymore.,Paragraphs&Stages,Findaproblem,Makeupaquestion,Thinkofamethod,Collectresults,Analyzetheresults,Findsupportingevidence,Drawaconclusion,Whatcausecholera?,Whichtheoryistrue?,Collectdata,Plotinformation,Analyzethewater,Findotherevidence,Thewateris,Whatdiseaseissimilartocholera?,Cholerawasa19thcen