文档详情

Unit1_阅读课_名师课件(一).ppt

发布:2025-05-07约3.73千字共17页下载文档
文本预览下载声明

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

显示全部
相似文档