John-Snow-Defeats-King-Cholera阅读公开课

Unit1Greatscientistswarmingup&reading高二人教新课标版必修五Whatdoyouknowaboutgreatscientists?Trythisquizandfindoutwhoknowsthemost.1.Whichscientistdiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?Archimedes(Greek)2.Whousedpeastoshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren?GregorMendelCzech(捷克人)MarieCurie(Polish&French)3.Whodiscoveredradium?4.Whoinventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened?ZhangHeng(Chinese)seismograph5.Whoputforwardatheoryaboutblackhole?StephenHawking(British)blackhole6.WhodiscoveredQinghaosu?TuYouyou(Chinese)QinghaocommoncharacteristicscautiousstrictCo-operativebrightenthusiasticJohnSnowdefeats“Kingcholera”JohnSnowdefeats“kingcholera”Whatcanyoulearnfromthetitle?who：what：defeatscholeraHeattendedherasherpersonalphysicianQueenVictoriaNameofillnesscholera(霍乱)Symptom(症状)severevomiting(呕吐)anddiarrhea(腹泻)Aftereffect(后果)diequicklyfromalossofliquidWhatischolera?Skimthetextandfindthemainideaofthetext.Thepassageismainlyabout:A.whyheisfamousB.hisfamilyC.thecauseofcholeraD.howhefoundoutthecauseC.hispersonalityReadthepassagequicklyandfindnumbersandinformationrelatedtothesenumbers.Fast—reading:TwotheoriesIn1854500,10Thefirstsuggestedthat…multipliedintheair;Thesecondsuggested…absorbedthisdiseaseintotheirbodieswiththeirmeals.AnotheroutbreakhitLondon.Morethan500peoplehaddiedin10days.16,37,38and4020,21;8,97ThesenumbersinBroadStreetnearthewaterpumphadmanyofthedeaths20and21BroadStreetand8and9CambridgeStreethadnodeaths….Theydidn’tdrinkthewaterfromtheBroadStreetpump.Thesefamiliesworkedinthepubat7CambridgeStreet.163789pump3840JohnSnow'sCholeraMap7Whatistheproblem?Thecholerawasthemostdeadlydiseaseofitsday.Neitheritscause,noritscurewasunderstood.Whatcausedcholera?Makeaquestion:Whichtheorytobelievein?Choleramultipliedintheairwithoutreason.Acloudofdangerousgaswouldfloatarounduntilitfounditsvictims.Peopleabsorbeditwiththeirmeals.Whichonedoyoubelievemore?WhataboutJohnSnow?AmapofBroadStreetWhatmethoddidheuse?Manydeathshappenedhere.Nodeathhappenedhere.Itseemedthewaterfromthepumpwastoblame.Whatdidhedonext?Publichouse(Para6)Whatwasanothersupportingevidence?(Para5)Helookedintothesourceofthewater…JohnSnowwasabletoannouncewithcertaintythatpollutedwatercarriedthegerms.Readthepassageandnumbertheseeventsintheorderthattheyhappened.JohnSnowbegantotesttwotheories.AnoutbreakofcholerahitLondonin1854.Heannouncedthatthewatercarriedthedisease.JohnSnowmarkedthedeathsonamap.2147Careful—reading:KingCholerawasdefeated.Hefoundthatmostofthedeathswerenearawaterpump.Hehadthehandleremovedfromthewaterpump.JohnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.38561.JohnSnowbelievedIdea2wasright.Howdidhefinallyproveit?KEY:JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera,collectedinformationandwasabletotiecasesoutsidetheareatothepollutedwater.Readandanswerthequestions.2.DoyouthinkJohnSnowwouldhavesolvedthisproblemwithoutthemap?Giveareason.KEY:No.ThemaphelpedJohnSnoworganizehisideas.Hewasabletoidentifythosehouseholdsthathadmanydeathsandchecktheirwater-drinkinghabits.Heidentifiedthosehousesthathadnodeathsandsurveyedtheirdrinkinghabits.Theevidenceclearlypointedtothepollutedwaterbeingthecause.3.Cholerawasa19thcenturydisease.Whatdiseasedoyouthinkissimilartocholeratoday?KEY:Fourdiseases,whicharesimilartoday,areSARS,AIDS,TB(肺结核)andbird-flu,becausetheyareveryserious,haveanunknowncauseandneedpublichealthcaretosolvethem.Whatshouldwepayattentiontoinourdailylifeinordernottogetinfectedwithcholera?HeatthefoodleftovernightCookrawfoodthoroughlyWashhandsoftenKeepawayfromflieschoosefreshseafoodKeepthekitchencleandealwithrubbishproperlyDrinkboiledwaterDiscussion1.Preparefordictation.2.阅读训练第一篇（P2passageA）Homework