人教版必修五Unit1Greatscientistreading1课件（29张）

Greatscientists

Unit1JOHNSNOWDEFEATS“KINGCHOLERA”Reading1.Tosummarizeandrememberthemainideaofthepassage.2.Tospeakoutthedetailedinformationofthepassage.3.ToknowmoreaboutJohnSnowandhisachievements.4.Tolearnsomeusefulwordsandexpressionsinthepassage.ObjectivesReadingstrategyskimmingscanningageneralidea

certaininformationtitlesandheadingsthefirstandlastsentencesofparagraphsthefirstandlastparagraphspicturesandchartsScanthetextforkeywordsandphrases,dates,etc.Donotneedtoreadthewholetext.SkimmingforgeneralideaAfterreadingthepassage,matchthefollowingstageswiththeparagraphs.ReadingComprehensionISkimmingStagesDrawaconclusion ThinkofamethodCollectresults MakeaquestionFindaproblemAnalyzetheresultsFindsupportingevidencePara.Stagesinanexperiment1234567FindaproblemMakeaquestionThinkofamethodCollectresultsAnalysetheresultsDrawaconclusionFindsupportingevidenceParagraphs&StagesFirstweshouldfindtheproblem.Then,thinkofamethod.Weshouldcollectasmuchinformationaspossible.Analyzingresultsisthemostimportantstage.Beforewemakeaconclusion,itisnecessaryforustofindsupportingevidence.SummaryWhat’sthemainideaofthepassage?A.JohnSnowwasawell-knowndoctorinLondon.B.Thecauseofcholerawaspollutedwater.C.Thesourceofalldrinkingwatershouldbeexamined.D.HowJohnSnowcollected,analyseddataandfoundthecauseofthediseaseanddefeatedthedisease.ReadingComprehensionIISkimmingReadingComprehensionIIISkimmingReadthepassagetofindthemainideaofeachparagraph.JohnSnowwantedtousehisknowledgetosolvecholera.Hegotinterestedintwotheories.Heneededtoprovethesecondtheorywascorrect.Hefoundoutthatdirtywaterwasthecauseofcholera.Para.1Para.2Para.3Para.4Para.6Para.7Pollutedwatercarriedthevirus.Finally“KingCholera”wasdefeated.Para.5Cholerawasspreadbygermsandnotinacloudofgas.ScanningforspecificinformationReadthepassageandnumbertheseeventsintheorderthattheyhappened.___JohnSnowbegantotesttwotheories.___AnoutbreakofcholerahitLondonin1854.___JohnSnowmarkedthedeathsonamap.ReadingComprehensionIVScanning___Heannouncedthatthewatercarriedthedisease.___JohnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.___KingCholerawasdefeated.___Hefoundthatmostofthedeathswerenearawaterpump.___Hehadthehandleremovedfromthewaterpump.Answer:21473856ReadingComprehensionVWhycouldn’tthecholerabecontrolledatfirst?

A.Itsspeedofspreadingwassofast.B.Itscausewasn’tunderstoodC.Itscurewasn’tunderstood.D.BothB.&C.Scanning2.Howmanypeoplediedin10daysintwoparticularstreets?A.Lessthan500.B.Morethan500.C.Morethan450.D.Lessthan450.3.WhatattitudedidJohnSnowtaketothetwosupposedtheoriesexplaininghowcholeraattackedpeople?

A.Doubtfulbuthecoulddonothingaboutit.B.Objectiveandheaskedhisassistantstogatherinformation.C.Acceptableandhewassureaboutthecauses.D.Reasonablebuttheyremainedtobeprovedscientifically.1JohnSnowbelievedIdea2wasright.Howdidhefinallyproveit?JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera,collectedinformationandwasabletotiecasesoutsidetheareatothepollutedwater.ReadingComprehensionVIAnswerthesequestions.Scanning2DoyouthinkJohnSnowwouldhavesolvedthisproblemwithoutthemap? Giveareason.No.ThemaphelpedJohnSnoworganizehisideas.Hewasabletoidentifythosehouseholdsthathadhadmanydeathsandchecktheirwater-drinkinghabits.Heidentifiedthosehousesthathadhadnodeathsandsurveyedtheirdrinkinghabits.Theevidenceclearlypointedtothepollutedwaterbeingthecause.3Cholerawasa19thcenturydisease.Whatdiseasedoyouthinkissimilartocholeratoday?Why?Threediseases,whicharesimilartoday,areSARS,AIDSandbirdflu,becausetheyareserious,haveanunknowncauseandneedpublichealthcaretosolvethem.Discussthequestioningroups.GroupWorkWhatshouldyoudoifyou'retravellingtoacountrythathasacholeraoutbreak?

Drinkonlywaterthatyouhaveboiled.Othersafedrinksincludeteaorcoffeemadewithboiledwater,bottledbeverageswithnoice.DiscussionEatonlyfoodthat'sbeenthoroughlycookedandisstillhot,orfruitthatyou'vepeeledyourself.Avoidundercookedorrawfishandshellfish.Avoidrawsaladsandvegetables.Avoidfoodanddrinksfromstreetvendors.

TIPSJohnSnowwasawell-known______inLondoninthe____century.Hewantedtofindthe______ofcholerainorderto______it.In1854whenacholera______out,hebegantogatherinformation.He_______onamapwhereallthedeadpeoplehadlivedandhefoundthatmanydoctor19thcausedefeatbrokemarkedRetellthetextbyfillinginthefollowingblanks.peoplewhohad_______thedirtywaterfromthe______died.Sohedecidedthatthepollutedwatercarriedthevirus.Hesuggestedthatthe_______ofallthewatersuppliesbe_________.Thewatercompanieswere_________nottoexposepeopletopollutedwateranymore.Finally,“KingCholera”wasdefeated.pumpsourceexamin