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英語教學(xué)課件系列必修5Unit1
GreatscientistsReadingPre-reading
1.Whatimpressesyoumostin2003?
Infectiousdiseasescanbespreadtootherpeople.Theyhaveanunknowncauseandneedpublichealthcaretosolvethem.Peoplemaybeexposedtoinfectiousdiseases,somayanimals.Birdflu,AIDSandSARSareinfectiousdiseases.Infectiousdiseasesaredifficulttocure.Whatdoyouknowaboutinfectiousdiseases?WhichpersonimpressesyoumostduringtheSARS?Whatotherinfectiousdiseasesdoyouknow?Forexample:Whenyoueatsomefoodthatisnotfresh……Youmayfeel…Maybeyouhavegot________.CholeraWhatisCholera?
CholeraistheillnesscausedbyabacteriumcalledVibriocholerae.Itinfectspeople’sintestines(腸),causingdiarrhea(腹瀉),vomitingandlegcramps.Themostcommoncauseofcholeraisbysomeoneeatingfoodordrinkingwaterthathasbeeninfectedwiththebacteria.
Afteradisaster,thisisaveryrealdanger,sinceregular,cleanwaterandfoodsuppliesareoftenunavailable.Thediseasecanbespreadevenfurtherbyinfectedpeopleusingalreadydirtiedwatersourcestocleanthemselvesordisposeofwaste.GreatBritainGermanyDeathoffirstcholeracaseinLondonduringthe1848-49epidemicLondonPreviouscholeraepidemicinGreatBritainin1831-32ThespreadofcholeraJohnSnowdefeats“Kingcholera”Reading1.Tosummarizeandrememberthemainideaofthepassage.2.Tospeakoutthedetailedinformationofthepassage.3.ToknowmoreaboutJohnSnowandhisachievements.4.Tolearnsomeusefulwordsandexpressionsinthepassage.ObjectivesWords:defeat,attend,cure,challenge,suspect,blame,pollute,handle,link,announceExpressions:expose…to,link…to…neither…nor…be/becomeinterestedinbedeterminedtoFocusonJohnSnow
defeats
“kingcholera”Whatcanyoulearnfromthetitle?人物:事件:defeatscholeraWhoisJohnSnow?Whathappenedtothem?
attended
herasherpersonalphysicianQueenVictoriaJohnSnow約翰.斯諾(1813~1858),英國麻醉學(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.TheterriblecholeraBacteria/germsofcholeraNameofillnesscholera(霍亂)Symptom(癥狀)severevomiting(嘔吐)anddiarrhoea(腹瀉)Aftereffect(后果)diequicklyfromalossofliquidWhatwasthecauseofthisillness?HowdidJohnSnowfinditout?Skimthetextandfindthemainideaofthetext.Thepassageismainlyabout:_______________________________________________________
HowJohnSnowfoundthecauseofthecholeraanddefeatedit.
Fast—reading:Readthepassagequicklyandfindthenumberbelowandtherelevanthappeningsinthepassage.TwotheoriesIn1854500,10Thefirstsuggestedthat…multipliedintheair;Thesecondsuggested…absorbedthisdiseaseintotheirbodieswiththeirmeals.AnotheroutbreakhitLondon.Morethan500peoplehaddiedin10days.16,37,38and4020,21;8,97ThesenumbersinBroadStreetnearthewaterpumphadmanyofthedeaths20and21BroadStreetand8and9CambridgeStreethadnodeaths….Theydidn’tdrinkthewaterfromtheBroadStreetpump.Thesefamiliesworkedinthepubat7CambridgeStreet.16372089pump3840BROADSTREETCAMBRIDGESTREET21JohnSnow'sCholeraMap7PubWhatistheproblem?Thecholerawasthemostdeadlydiseaseofitsday.Neitheritscause,noritscurewasunderstood.Whatcausedcholera?Makeaquestion:Whichtheorytobelievein?Idea1Idea2Choleramultipliedintheairwithoutreason.Acloudofdangerousgaswouldfloatarounduntilitfounditsvictims.Peopleabsorbeditwiththeirmeals.Whichonedoyoubelievemore?WhataboutJohnSnow?AmapofBroadStreetWhatmethoddidheuse?BroadStreetManydeathshappenedhere.Nodeathhappenedhere.Itseemedthewaterfromthepumpwastoblame.Whatdidhedonext?Publichouse(Para6)Whatwasanothersupportingevidence?(Para5)Helookedintothesourceofthewater…JohnSnowwasabletoannouncewithcertaintythatpollutedwatercarriedthevirus.Readthepassageandnumbertheseeventsintheorderthattheyhappened.JohnSnowbegantotesttwotheories.AnoutbreakofcholerahitLondonin1854.Heannouncedthatthewatercarriedthedisease.JohnSnowmarkedthedeathsonamap.
2147Careful—reading:KingCholerawasdefeated.Hefoundthatmostofthedeathswerenearawaterpump.Hehadthehandleremovedfromthewaterpump.JohnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.3856Para-graphStagesinanexperimentExampleinthisinvestigation1Findaproblem2Makeaquestion3ThinkofamethodWhat
caused
cholera?Whichtheoryiscorrect?Collectdataonthosewhowereillordiedandwheretheygottheirwater.Fillintheblanks.
4Collectresults5Analyseresults6findsupportingevidence7DrawaconclusionPlot
informationonamaptofindoutwherepeoplediedordidnotdie.Analysethewatertoseeifthatisthecauseoftheillness.Findotherevidencetosupporttheanalysis.Thewateristoblame.Thesourceofalldrinkingwatershouldbeexaminedsothatitissafe.drawaconclusionfindaproblemmakeaquestionthinkofamethodcollectresultsanalysetheresultsrepeatifnecessaryMatchthemPara1Para2Para3Para4Para5Para6Para7PreventionofCholera1.JohnSnowbelievedIdea2wasright.Howdidhefinallyproveit?JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera,collectedinformationandwasabletotiecasesoutsidetheareatothepollutedwater.Readandanswerthequestions.2.DoyouthinkJohnSnowwouldhavesolvedthisproblemwithoutthemap?Giveareason.No.ThemaphelpedJohnSnoworganizehisideas.Hewasabletoidentifythosehouseholdsthathadmanydeathsandchecktheirwater-drinkinghabits.Heidentifiedthosehousesthathadnodeathsandsurveyedtheirdrinkinghabits.Theevidenceclearlypointedtothepollutedwaterbeingthecause.3.Cholerawasa19thcenturydisease.Whatdiseasedoyouthinkissimilartocholeratoday?Fourdiseases,whicharesimilartoday,areSARS,AIDS,TB(肺結(jié)核)andbird-flu,becausetheyarebothveryserious,haveanunknowncauseandneedpublichealthcaretosolvethem.1.Thepassagemainlytellsusthat____.thecauseofcholerawaspollutedwaterB.JohnSnowwasawell-knowndoctorinLondonC.thesourceofalldrinkingwatershouldbeexaminedD.JohnSnowdidsomeresearchandhelpedtosolve“KingCholera”Choosethebestanswer.D2.WhatwasthekeyhelpforJohnSnow’sdiscovery?A.Thegovernment.B.ThewomanmovingawayfromBroadStreet.C.Thewatercompany.D.Themapmadebyhimself.D
SummaryJohnSnowwasawell-known______inLondoninthe_____century.Hewantedtofindthe_____
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