廣東省廣州市培才高級(jí)中學(xué)高中英語(yǔ)《Unit 1 Great scientists》reading課件 新人教版必修5.ppt

johnsnowdefeats kingcholera reading johnsnowdefeats kingcholera whatcanyoulearnfromthetitle 人物 事件 defeatscholera whoisjohnsnow whathappenedtothem queenvictoria johnsnow約翰 斯諾 1813 1858 英國(guó)麻醉學(xué)家 流行病專家 他首次提出了預(yù)防霍亂的措施 1854年 倫敦霍亂流行 斯諾通過(guò)研究霍亂病死者的日常生活情況 尋找到他們的共同行為模式 發(fā)現(xiàn)了霍亂與飲用不潔水的關(guān)系 由于及時(shí)切斷了二者的聯(lián)系 有效制止了霍亂的流行 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 ofal