高中英语必修5第一单元u1_Warming_up_and_Reading课件_新人教版必修5[1].ppt

Unit1 Greatscientists GreatScientists Doyouknowtheirnames Theworksofscientistsmakelifemucheasierandmorecomfortable Theymakegreatcontributiontosocialdevelopment hard working Whatqualitiesdoyouthinktheyhaveincommon modest imaginative determined devoted wise careful creative Archimedes HewasanancientGreekmathematician Hefoundifyouputanobjectintowater thewaterpushestheobjectup Let slearnaboutsomescientists HewroteTheOriginofSpecies Itexplainedhowanimalsandplantsdevelopedastheenvironmentchanged CharlesDarwin HeimprovedthefirststeampumpbuiltbyThomasSaveryandturneditintoasteamenginefortakingwateroutofmines LaterJamesWattturneditintothefirstmodernsteamengineusedontherailways ThomasNewcomen Heusedpeastoshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren GregoryMendel Shediscoveredradiumin1898 ShereceivedtwoNobelPrizes oneforphysicsandoneforchemistry MarieCurie Heinventedthewayofgivingelectricitytoeverybodyinlargecities ThomasEdison LeonardodaVinci Hewasafamousartist Heusedtostudydeadpeopleinordertomakehispaintingsasaccurateaspossible Hedevelopedasafetylampforminersin1815 Itmadeworkingconditionsundergroundverymuchsafer SirHumphryDavy Heinventedthefirstseismographtoindicateinthedirectionofanearthquake ZhangHeng Heputforwardatheoryaboutblackholes StephenHawking THINK WORK FIND Howdothescientistsusuallydoscientificresearch Theprocess FindaproblemMakeaquestionThinkofamethodCollectresultsAnalysetheresultsFindsupportingevidenceDrawaconclusion SOLVE Whatinfectiousdiseasesdoyouknowabout Thingstodotopreventinfectiousdiseases Washyourhandsoften especiallyduringcoldandfluseason Beawareofwhatyoueat andbecarefulhowyouprepareit Useantibioticsexactlyasprescribed Becautiousaroundallwildanddomesticanimalsthatarenotfamiliartoyou Avoidareasofinsectinfestation CholeraistheillnesscausedbyabacteriumcalledVariancholera Ifitinfectspeople sintestines 肠胃 itmaycausediarrhea vomitingandlegcramps 腹痛 Themostcommoncauseofcholeraisbysomeoneeatingfoodordrinkingwaterthathasbeenpollutedbythebacteria Whatdoyouknowaboutcholera Choleracanbemild 不严重的 orevenwithoutsymptoms 症状 butaseverecasecanleadtodeathwithoutimmediatetreatment Doyouknowthisperson JohnSnow 1813 1858 alegendaryfigureinthehistoryofpublichealth epidemiology 流行病学 andanesthesiology 麻醉学 What sthemainideaofthepassage JohnSnowwasawell knowndoctorinLondon ThecauseofCholerawaspollutedwater Thesourceofalldrinkingwatershouldbeexamined HowJohnSnowcollected analyzeddataandfoundthecauseofthediseaseandsolvedit Fastreading d Usethesevenstagesinsettingoutanewscientificideatodescribeeachparagraph Carefulreading Findaproblem The ofcholera causes Comprehending Theorytwo Whenpeople choleraintotheirbodieswithmeals theirbodieswereattackedandsoontheydied Theoryone Cholera intheairanddangerousgasfloatedarounduntilitfounditsvictims Makeupaquestion multiplied absorbed Thinkofamethod To thesecondtheorywascorrect prove Collectresults Someinformationwas onhowmanypeoplediedandwheretheygotwater Analyseresults thewatertoseeifthatisthecauseoftheillness gathered Analyse findsupportingevidence Withextra itwasannounceddefinitelythat watercarriedcholera Makeaconclusion Pollutedwaterspreadcholera KingCholera was evidence polluted defeated Readthetextcarefullyandchoosethebestanswers 1 What sthepurposeofthetext A Toshowushowdifficultitwastofindacureforcholera B TotellushowJohnSnowfoundthecauseofcholeraandthecureforit C Toshowushowdifficultitwastocarryoutexperimentsatthattime D Totellusthewaycholeraspreadandhowseriousitwas B 2 WhichofthefollowingisTRUEccordingtothetext A JohnSnowbecamefamousaftercholerahitEnglandinthe19thcentury B JohnSnowbegantocollectinformationlongbeforecholerahitEnglandinthe19thcentury C ThemotherandherdaughtermentionedinthetextbothlivedinBroadStreet D JohnSnowfeltunsureaboutthecauseofcholeraafterhefinishedthemap D 3 Whywascholeracalled KingCholera inthetext A Becausecholeracausedmanydeaths B BecauseitgotitsnamefromQueenVictoria C Becausecholerawasthemostdeadlydiseaseofitsday D Becauseitwasdefeatedwiththehelpoftheking C 1 WhatdoyouknowaboutDr JohnSnow sbeingwell knowninLondon HeattendedQueenVictoriatoeasethebirthofherbabies Questions 3 Didpeopleknowhowtocurethedisease 2 FromwhatdiseasedidLondonerssufferinhisage Theyexposedthemselvestocholera 4 WhendidDr Snowthinkthediseasewouldbecontrolled Heknewhewouldneverbecontrolleduntilitscausewasfound Peopleabsorbedthisdiseaseintotheirbodieswiththeirmeals 5 Whatwasthesecondtheoryexplaininghowthediseasekilledpeople 6 HowseriouswasthediseaseoutbreakinLondon Thecholeraoutbreakwassoseverethatmorethan500peoplehaddiedin10days Themapgaveavaluableclueaboutthecauseofthedisease 7 DidthemapwhichDr Snowdrawhelpfindthecauseofthedisease ManyofthedeathswerenearthewaterpumpinBroadStreet 8 WhereweremanyofthedeathsinBroadStreet 9 Whydidsomehouseshavenodeaths Thesefamiliesworkedinthepubat7CambridgeStreet TheyweregivenfreebeerandsohadnotdrunkthewaterfromtheBroadstreetpump Itseemedthewaterwastoblame 10 WhatdidDr Snowthinkwasresponsibleforthedisease Hetoldthepeopletoremovethehandlefromthewaterpumpsoitcouldnotbeused 11 WhatdidDr SnowadvisedthepeopleinBroadStreetdo 12 WhatelsedidDr SnowfindinanotherpartofLondonthatwerelinkedtotheBroadStreetoutbreak Inaddition hefound2otherdeaths 13 WhatconclusiondidDr Snowtellthepublic Heannouncedthatpollutedwatercarriedthedisease 14 WhatdidDr Snowtellthewatercompanies Theywerenottoexposepeopletopollutedwateranymore instructed GroupDiscussion 1 JohnSnowbelievedIdea2wasright Howdidhefinallyproveit JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera collectedinformationandwasabletotiecasesoutsidetheareatothepollutedwater 2 DoyouthinkJohnSnowwouldhavesolvedthisproblemwithoutthemap No ThemaphelpedJohnSnoworganizehisideas Hewasabletoidentifythosehouseholdsthathadhadmanydeathsandchecktheirwater drinkinghabits Heidentifiedthosehousesthathadhadnodeathsandsurveyedtheirdrinkinghabits Theevidenceclearlypointedtothepollutedwaterbeingthecause 3 Choleraisa19thcenturydisease Whatdiseasedoyouthinkissimilartocholeratoday Twodiseases whicharesimilartoday areSARSandAIDSbecausetheyarebothserious haveanunknowncauseandneedpublichealthcaretosolvethem Fillintheblanks JohnSnowwasa doctorinLondon Therewasthemostdeadly called KingCholera ofitsday Everytimetherewasa an manypeopledied JohnSnowwantedtofacethe and thisproblem Heknewthatitwouldneverbe untilitscausewasfound Atthattime thereweretwotheoriesaboutcholera Thefirstsuggest