Unit1_阅读课_名师课件(一).ppt
Module5Unit1GreatScientists
THEYCREATEOURCOLORFULANDCOMFORTABLELIFE.GreatScientistsmakegreatcontributionsmakeeveryeffortmakeadifference
STAGESINSCIENTIFICRESEARCHDrawaconclusionCollectresultsMakeaquestionFindaproblemAnalysetheresultsRepeatifnecessaryFindsupportingevidenceThinkofamethodRigorous(严谨的)scientificresearchstagesareessentialtoproveanewidea.
How?PredictthecontentfromthetitleJohnSnowdefeats“Kingcholera”Who?What?Scientificresearchstages
Para1:Whatcausescholera?Findaproblem:JohnSnowfamous/well-knownexpert/professionaldeadly“Kingcholera”Battlevskind-heartedconsiderateincurableinfectious(传染性的)terriblechallengeface/solveAdjectives(形容词)Adjectives
Para2:Makeaquestion:Whichtheoryiscorrect?______theoriesThefirstThesecond?Asascientist,itisimportanttokeepcurious,critical(批判性的)andsensible(有判断力的).TwoItsuggestedthatcholeramultipliedintheair.Itsuggestedthatpeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.
JohnSnowsuspectedthatthesecondtheorywascorrectbutheneededevidence.SowhenanotheroutbreakhitLondonin1854,hewasreadytobeginhisenquiry.Asthediseasespreadquicklythroughpoorneighbourhoods,hebegantogatherinformation.Intwoparticularstreets,thecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.Hewasdeterminedtofindoutwhy.Para3:suspectedthesecondtheoryThinkofamethod:CollectdataonthediseaseneededevidencebeginhisenquirygatherinformationIntwoparticularstreetswherethevictimslived500peoplethenumberofthedeadvictimswascorrectwasdeterminedto
Thereweremanydeathshere.Therewasnodeathhere.Conclusion:Itseemedthatthewaterwastoblame.?Peopleworkingherehadntdrunkthewaterfromthepump.Para4:Collectresults:MarkinformationonamapWheredidmanydeathshappenandwheredidnodeathhappen?
Para5:Analyseresults:Analysethesourc