高中英语《Unit 1 Great scientists》reading课件 新人教版必修5.ppt

JohnSnowdefeats Kingcholera Reading JohnSnowdefeats kingcholera Whatcanyoulearnfromthetitle 人物 事件 defeatscholera WhoisJohnSnow Whathappenedtothem QueenVictoria JohnSnow约翰 斯诺 1813 1858 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 Fouroutbreaksofcholerainthe1830sand1840skilledmanypeopleinEngland In1854 themostterribleoutbreakofcholerawhicheveroccurredinthekingdom began Itwassoviolentandsuddenthat127peoplediedinthefirstthreedays Theterriblecholera Bacteria germsofcholera Whatwasthecauseofthisillness HowdidJohnSnowfinditout Skimthetextandfindthemainideaofthetext Thepassageismainlyabout How foundthecauseofThe anddefeatedit JohnSnow cholera ReadthetextquicklyandquietlytomatchtheStagesinanexperimentandtheExampleinthisinvestigation Readthepassagequicklyandfindthenumberbelowandtherelevanthappeningsinthepassage Thefirstsuggestedthat multipliedintheair Thesecondsuggested absorbedthisdiseaseintotheirbodieswiththeirmeals AnotheroutbreakhitLondon Morethan500peoplehaddiedin10days ThesenumbersinBroadStreetnearthewaterpumphadmanyofthedeaths 20and21BroadStreetand8and9CambridgeStreethadnodeaths Theydidn tdrinkthewaterfromtheBroadStreetpump Thesefamiliesworkedinthepubat7CambridgeStreet 1 Thepassagemainlytellsusthat thecauseofcholerawaspollutedwaterB JohnSnowwasawell knowndoctorinLondonC thesourceofalldrinkingwatershouldbeexaminedD JohnSnowdidsomeresearchandhelpedtosolve KingCholera Choosethebestanswer D 2 WhatwasthekeyhelpforJohnSnow sdiscovery A Thegovernment B ThewomanmovingawayfromBroadStreet C Thewatercompany D Themapmadebyhimself D 1 JohnSnowbelievedIdea2wasright Howdidhefinallyproveit JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera collectedinformationandwasabletotiecasesoutsidetheareatothepollutedwater Readandanswerthequestions 2 DoyouthinkJohnSnowwouldhavesolvedthisproblemwithoutthemap Giveareason No ThemaphelpedJohnSnoworganizehisideas Hewasabletoidentifythosehouseholdsthathadmanydeathsandchecktheirwater drinkinghabits Heidentifiedthosehousesthathadnodeathsandsurveyedtheirdrinkinghabits Theevidenceclearlypointedtothepollutedwaterbeingthecause Summary JohnSnowwasawell known inLondoninthe century Hewantedtofindthe ofcholerainorderto it In1854whenacholera out hebegantogatherinformation doctor 19th cause defeat broke He onamapwhereallthedeadpeoplehadlivedandhefoundthatmanypeoplewhohaddrunkthedirtywaterfromthe died Sohedecidedthatthepollutedwatercarriedcholera Hesuggestedthatthe ofallwatersupplybe andnewmethodsof withpollutedwaterbefound Finally KingCholera wasdefeated marked pump source examined dealing ThankYou