Unit1ScienceandScientistsReadingandThinking課件高中英語(yǔ)人教版選擇性4

Unit1ScienceandScientists

ReadingandThinking

年級(jí)：

高二

學(xué)科：英語(yǔ)（人教版）Inthisclass,youwillLearningobjectives1.readabouthowJohnSnowdefeated“KingCholera”2.analyzeJohnSnow'sscientificresearchprocessandmethodsofdefeatingcholera3.figureoutthebasicscientificresearchstepsandunderstandtheimportantroleofquestioningmindinscientificresearch.Who

ishe?Whatdoyouknowabouthim?Lead-in:predicting

Lead-in:predictingcholeraCholerausedtobeoneofthe

mostfeareddiseasesintheworld.

Thisillnesscausesseverediarrhoea,dehydration,andevendeath.腹瀉脫水

Lead-in:predictingJOHNSNOWDEFEATS“KINGCHOLERA”Whatdoyouthinkwillbetalkedabout?ThepassagewillbeaboutJohnSnowandhowhedefeated“kingcholera”Theresults&significanceThetruth

FastreadingJOHNSNOWDEFEATS“KINGCHOLERA”1stpara2nd-3rdparaHow?5thparaWho？What?4thpara

Your..._______analysetheresults_______askaquestion_______drawaconclusion_______collectdata_______findaproblem_______findsupportingevidence_______thinkofamethod

Ingeneral,doctorsinthosedayshadtwocontradictory

theories

toexplainhowcholeraspread.

Onetheorywasthatbadaircausedthedisease.

Theotherwasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.Snowsubscribedtothesecondtheory.

Itwascorrect,buthestillneededproof.Consequently,whenanoutbreakofcholerahitLondonin1854,

Snowbegantoinvestigate.Hediscoveredthatin

twoparticularstreetsthecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.

Hewasdeterminedtofindoutwhy。Fastreading

Findaproblem2ndpara

Snowsubscribedtothesecondtheory.

Itwascorrect,buthestillneededproof.Consequently,whenanoutbreakofcholerahitLondonin1854,

Snowbegantoinvestigate.Hediscoveredthatin

twoparticularstreetsthecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.

Hewasdeterminedtofindoutwhy.

AskaquestionFastreading2ndpara

DetailedreadingSnowbeganbymarkingonamaptheexactplaceswhereallthosewhodiedhadlived.

ThereweremultipledeathsnearthewaterpumpinBroadStreet(especiallyhousenumbers16,37,38,and40).However,somehouseholds(suchas20and21BroadStreetand8and9CambridgeStreet)hadhadnodeaths.Thesepeopleworkedinthepubat7CambridgeStreet.

Thinkofamethod3rdpara

Snowbeganbymarkingonamaptheexactplaceswhereallthosewhodiedhadlived.

ThereweremultipledeathsnearthewaterpumpinBroadStreet(especiallyhousenumbers16,37,38,and40).However,somehouseholds(suchas20and21BroadStreetand8and9CambridgeStreet)hadhadnodeaths.Thesepeopleworkedinthepubat7CambridgeStreet.

CollectdateFastreading3rdpara

FastreadingSnowbeganbymarkingonamaptheexactplaceswhereallthosewhodiedhadlived.

ThereweremultipledeathsnearthewaterpumpinBroadStreet(especiallyhousenumbers16,37,38,and40).However,somehouseholds(suchas20and21BroadStreetand8and9CambridgeStreet)hadhadnodeaths.Thesepeopleworkedinthepubat7CambridgeStreet.

Analysetheresults3rdpara

Fastreading

Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.

Itseemedthatthewomanliked

thewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.

Asaresultofthisevidence,JohnSnowwasabletoannouncethatthepumpwatercarriedcholeragerms.

Findsupportingevidence3rdpara

Fastreading

Itseemedthatthewomanlikethewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.

Asaresultofthisevidence,JohnSnowwasabletoannouncethatthepumpwatercarriedcholeragerms.

Accordingly,hehadthehandleofthepumpremovedsothatitcouldnotbeused.

Throughthisintervention,thediseasewasstoppedinitstracks.Drawaconclusionn3rdpara

ThestagesofascientificresearchThe1st

stage：findaproblemThe2ndstage：askaquestionThe3rdstage：thinkofamethodThe4thstage：collectdataThe5thstage：analysetheresultsThe6thstage：findsupportingevidenceThe7thstage：drawaconclusion

DetailedreadingJohnSnowWho?A_________doctorwhoevenattended_______________whenshe...What?Hehadadesireto_____________

onceandforall.famousQueenVictoriadestroycholera1stpara31stparacholeraWhat?When?Where?Whatconsequence?Itisoneof__________________________________becauseitcauses__________________________________themostfeareddiseasesintheworld(once)severediarrhoea,dehydration,andevendeathIntheearly19thcenturyEuropeMillionsofpeoplediedfromthedisease“KingCholera”

=

deadlycholera

CompletetheresearchstepsFillintheblanksandfinishtheresearchsteps:Itwasbelievedthatcholerawascausedbybad_____orgermsin_________.Snow_____________theplaceswherethepeoplewho_______hadlivedManydeathsoccurrednearthe__________inBroadStreet.Somepeople_________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter______________airfoodorwatermarkedonamapdiedwaterpumphadn’tdrinkingwaterfromthepump.ABC

CompletetheresearchstepsThepumpwatercarried____________The____________ofthepumpwasremoved.DEcholeragermshandle

SummarizetheresearchstepsItwasbelievedthatcholerawascausedbybad_____orgermsin_________.Snow_____________theplaceswherethepeoplewho_______hadlivedABairfoodorwatertheoriesmarkedonamapdiedprocess

SummarizetheresearchstepsManydeathsoccurrednearthe__________inBroadStreet.Somepeople_________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter_______________________waterpumphadn’tdrinkingwaterfromthepump.evidence

Thepumpwatercarried____________The_______ofthepumpwasremoved.choleragermshandleDEconclusionsolutionSummarizetheresearchstepsSummariseandreviewtheresearchsteps:Itwasbelievedthatcholerawascausedbybad_____orgermsin_________.markedonamapSnow_____________theplaceswherethepeoplewho_______hadlivedtheoriesThepumpwatercarried____________The________ofthepumpwasremoved.conclusionsolutionManydeathsoccurrednearthe__________inBroadStreet.Somepeople_________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter______________airfoodorwaterdiedcholeragermshandlewaterpumphadn’tdrinkingwater.processevidence

DiscussionWhathelpedJohnSnowmostindefeatingcholera?A.HisexperienceB.HismapC...

Howdoesitwork?Whatkindofmapisit?Whatdoes“__”mean?Whatdoes“PH”mean?Whatdoes30,31,...referto?Howmanydeathswerethereinhousenumber19inBroadStreet?WhichhousenumbershadmorethanfourdeathsinBroadStreet?WhichhousenumbershadnodeathsinBroadStreet?Whereisapump?

Howdoesitwork?Whatkindofmapisit?(It’sSnow’scholeramap)Whatdoes“__”mean?(1death)Whatdoes“PH”mean?(publichouse)Whatdoes30,31,...referto?(numbersofhouses)Howmanydeathswerethereinhousenumber19inBroadStreet?(2)WhichhousenumbershadmorethanfourdeathsinBroadStreet?(16、37、38&40）WhichhousenumbershadnodeathsinBroadStreet?（14、20、21、25、27、28&34）Whereisapump?（nearhousenumber40inBroadStreet)

ThetruthWhatlinkdidhefindbetweenthedeathsanddrinkingwater?ThewaterwasinfectedbywastethepollutedwaterwassoldtoordrunkbypeoplethepeoplewereinfectedbycholeraDetailedreading4thpara

ResultsandsignificanceWhatwerethesuggestionstodecreasecholera?

Watercompaniessellcleanwater.Peopledrinkpureorboiledwater,andeatingcleanfood.Detailedreading5thpara

ResultsandsignificanceWhatcontributionsdidJohnSnowmaketoscience?

Hehelpedpeopleknowhowtopreventcholera.Hetransformedthewayscientistsstudy

diseasesbyusing

mapsandstatistics.Detailedreading5thpara

ThinkingWriteoutthequestionsaccordingtotheanswers.1.Q:How_________________________________?A:Snowthoughtthatcholerawascausedbygermsinfoodorwater.2.Q:Why_______________________________________?A:Snowhadthehandleofthepumpremovedsothatitcouldnotbeused.didSnowthinkcholerawascauseddidSnowhavethehandleofthepumpremovedWriteoutthequestionsaccordingtotheanswers.3.Q：How_______________