【课件】Unit+1Reading+and+Thinking+课件人教版（2019）选择性必修第二册++

Unit1SCIENCEANDSCIENTISTS

ReadingandThinkingJohnSnowDffeats“KingCholera”杨婷婷LearningobjectivesAttheendofthislesson,I’llbeableto:get

information

about

how

John

Snow

defeated

cholera;summarize

the

stages

of

scientific

research;talk

about

the

significance

and

contribution

of

John’s

work.ContentsWarmingup01020304Pre-readingWhile-readingPost-reading05HomeworkWarmingupPART01OpeningpageWhatcanyouseeinthephoto?twogirlsTwogirlsareconductinganexperimentinaschoolsciencelaboratory,probablytotestatheory,verifyresults,collectdata,ordevelopskillsneededinscientificresearch.conductinganexperimentOpeningpageToraisenewquestions,newpossibilities,toregardoldproblemsfromanewangle,requirescreativeimaginationandmarksrealadvanceinscience.--AlbertEinsteinandLeopoldInfeld

提出新问题，发现新问题，从新的角度审视已存在的问题，这些需要创造性的想象力，并标志着科学的真正进步。WhatqualitiesdoEinsteinandInfeldthinkascientistshouldhave?Tosolveascientificproblem,onenotonlyrequiressomedegreeoftechnicalskillbutalsoneedstheabilitytoaskquestions

andtoseethingsinanewway.Otherqualities:hard-working,patient,passionate,enthusiastic,devoted...

Pre-readingPART02DescribethepicturesAreyoufamiliarwiththesesituation?NucleicAcidTestGetvaccinatedMaskupPositivemeasuresaretakentofightagainstCovid-19.DiscussionWhatotherkindsofepidemicsdoyouknow?plague/pleɪɡ/influenza/ˌɪnfluˈenzə/choleraPredictionJOHNSNOWDEFEATS“KINGCHOLERA”Whatdoyouthinkthepassageismainlytalkingabout?While-readingPART03ReadformainideaJOHNSNOWDEFEATS“KINGCHOLERA”What’sthemainideaofthepassage?A．JohnSnowwasawell­knowndoctorinLondon.B．Thecauseofcholerawasthepollutedwater.C．Thesourceofalldrinkingwatersuppliesshouldbeexamined.D．HowJohnSnowfoundthecauseofcholeraanddefeatedit.CholeraWhatischolera?Whatharmdoescholeradotopeople?Whyisitcalled“KingCholera”?Choleralossofliquidseverevomiting/ˈvɒmɪt/diarrhea/ˌdaɪəˈrɪə/Itbeginsinthestomachandaseverecasecanleadtodeathwithoutimmediatetreatment.JohnSnowWho

isJohnSnow?AyoungBritish

whoeven

QueenVictoriawhenshegavebirth.Hehadadesireto

.onceandforall.doctorattendedtodestroycholeratakecareof/lookafterReadforstrutures(

)Paragraph1(

)Paragraph2(

)Paragraph3(

)Paragraph4(

)Paragraph5A.Finally“KingCholera”wasdefeated.B．JohnSnowwantedtousehisknowledgetosolvecholera.C．Hegotinterestedintwotheoriesexplaininghowcholerakilledpeople.D．Heneededtoprovethesecondtheorywascorrect.E．Hefinallyfoundoutthatdirtywaterwasthecauseofcholera.

ABCDEWho&WhatHowtodefeatTruthAchievementsReadfororder

analyzetheresults

askaquestion

drawaconclusion

collectdata

findaproblem

findsupportingevidence

thinkofamethodHow

didJohnSnowdefeat“KingCholera”?How:ResearchStepsStep1Itwasbelievedcholerawascausedby

orgermsin_____________.How:ResearchStepsStep1Itwasbelievedcholerawascausedby

orgermsin_____________.badairfoodorwaterfindaproblemStep2Snowwasdeterminedtofindout

.

.How:ResearchStepsStep1Itwasbelievedcholerawascausedby

orgermsin_____________.foodorwaterfindaproblemStep2Snowwasdeterminedtofindout

.

.whytheoutbreakwassosevereintwoparticularstreets

askaquestionStep3Snow

theplaceswherethepeoplewho

hadlived.markedonamapdiedthinkofamethod(Para.3)Whatkindofmapisit?It’sSnow’scholeramap.Whatdoes“—”mean?Itmeansonedeath.Whatdoes“PH”mean?Itmeanspublichouse,ahousesuchasbarorpubwherealcoholicdrinksaresoldtothepublic.Whatdoes30,31,...referto?Theyrefertonumbersofhouses.Step4

Thenumberofdeathsindifferent

householdswasrecorded.collectdataBROADSTREETBROADSTREETWhichhousenumbershadmorethanfourdeathsinBroadStreet?Housenumber16,37,38and40hadmorethanfourdeathsinBroadStreet.WhichhousenumbershadnodeathsinBroadStreet?Housenumber14,20,21,25,27,28and34hadnodeathsinBroadStreet.Whereisthepump?Thepumpisnearhousenumber40inBroadStreet.Step5Multipledeathsoccurrednearthe

inBroadStreet,whilesomepeoplewho______

drunkthewaterfromthepump,lived.analyzetheresultspumphadn’tStep6findsupportingevidenceStep7drawaconclusionWhatistheresultofJohnSnow’sresearch?Thepumpwatercarriedcholeragerms,thehandleofthepumpwasremoved,andthediseasewasstoppedinitstracks.(Para.3)Checkyourorder

analyzetheresults

askaquestion

drawaconclusion

collectdata

findaproblem

findsupportingevidence

thinkofamethod6543217Orderairfoodorwatermarkedonamapdiedwaterpumphadn’t

drinkingwaterfromthepumpcholeragermshandleCompletetheblankMatchairfoodorwatermarkedonamapdiedwaterpumphadn’t

drinkingwaterfromthepumpcholeragermshandleMatchthefollowingheaderswiththeletters(A-E)fromthechartbelow.1conclusion

.

2evidence

.

3process

.4solution

.5theories

.

AEBCDWhatcontributionsdidJohnSnowmaketoscience?ThecholerawascausedbythewaterwhichcamefromtheRiverThamesandhadbeeninfectedbywaste.①②③④(Para.4)(Para.5)WhatcausedtheoutbreakofcholerainLondonin1854?CriticalreadingPost-readingPART04FurtherthinkingWhatqualitiesarecrucialin