Unit1ScienceandScientistsReadingandThinking课件高中英语人教版选择性

ReadingandThinkingJohnSnowDefeats“KingCholera”Before-reading“Toraisenewquestions,newpossibilities,toregardoldproblemsfromanewangle,requirescreativeimaginationandmarksrealadvanceinscience.”-AlbertEinstein

Whatcanyouthinkofwhenyoulookatthesepictures?MaskupGetvaccinatedNucleicacidtestsPositivemeasuresaretakentofightagainstCovid-19.Besidescoronavirus（冠状病毒）,whatotherkindsofepidemics（流行病）doyouknow?CholearaAddSomethingAtHereAddSomethingAtHereAddSomethingAtHereAddSomethingAtHereAddSomethingAtHereAddSomethingAtHerePredicting:Whatwillbetalkedabout?JohnSnow

Defeats“KingCholera”Who?How?What?JohnSnowDefeats“KingCholera”Read

forthemainidea(who)Para.1(how)Para.2-3(what)Para.1ThetruthPara.4ResultsandsignificancePara.5JohnSnowcholeraWho?A________doctorwhoevenattended_______________whenshegavebirth.What?Hehadadesireto________________onceandforall.famousdestroycholeraWhat?Itusedtobeoneof_________________________________________becauseitcauses______________________________________________.When?_____________________________________________________________.Where?_____________________________________________________________.Whatconsequence?Millionsofpeople_______________________________.themostfeareddiseasesintheworldseverediarrhoea,dehydrationandevendeathIntheearly19thcenturyEuropediedfromthediseaseQueenVictoria“KingCholera”=________choleradeadlyWhile

Reading:Para.1backgroundcollectdatathinkofamethodanalysetheresultsaskaquestiondrawaconclusionfindaproblemfindsupportingevidence

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5Readthepassageagainanddiscussthefollowingstagesofscientificresearchingroups.Whatorderwouldyouputthemin?

Understand

the

questioning

mind

While-readingReadfortheimformation.Para2&3How?1.Whatproblemdidthetwotheoriestrytosolve?ToexplainhowCholeraspread.2.WhatwerethetwotheoriesandwhichdidJohnSnowagreewith?TwocontradictorytheoriesTheoryone:causedby________Theorytwo:causedby_______badairgermsSnowsubscribedto

thesecondtheory.✔problemWhile-readingReadfortheimformation.Para2&3How?3.What’stheproofhefound?questionWhile-readingReadfortheimformation.Para2&3How?Whatmethoddidheuse?Howdidhefinallyfindoutwhy?markingonamapAnalyzethemapwithyourgroupmember.Whichhouseshadmorethan4deathsinBroadStreet?WhichhouseshadnodeathinBroadStreet?While-readingReadfortheimformation.Para2&3How?Anyotherevidence?Whatresultdidheget?Snowsuspectedthatthewaterpumpwastoblame.AwomanandherdaughterdiedinanotherpartofLondonafterdrinkingwaterfromthepump.JohnSnowwasabletoannouncethatthepumpwatercarriedcholeragerms.JohnSnowhadthehandleofthepumpremoved.Thediseasewasstopped.Readforthestages.ThinkofamethodCollectdata

AnalysetheresultsFindsupportingevidenceDrawaconclusionFindasolutionWhatcausedtheoutbreakofcholerainLondonin1854?

Thetruthwasthat

the

waterfromtheBroadStreetpumphadbeeninfectedbywaste.Moreover,Snowwaslaterabletoshowalinkbetweenothercasesofcholeraand

thedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiver

Thamesthatwaspollutedbyrawwaste.Thepeoplewhodrankthiswaterweremuch

morelikelytogetcholerathanthosewhodrankpureorboiledwater.revealthetruthPara.4

ThroughSnow’stirelessefforts,watercompaniesbegantosellcleanwater,andthe

threatofcholeraaroundthewordsawasubstantialdecrease.However,choleraisstillaproblem.Eachyear,millionsofpeoplearoundtheworldgetcholeraandmanydiefromit.Fortunately,wenowknowhowtopreventcholera,thankstotheworkofJohn

Snow.Moreover,inhisuseofmapsandstatistics,Snowtransformedthewayscientists

studydiseases.Forthisreason,Snowisconsideredthefatherofmodernepidemiology.resultsandcontributionsPara.5Wascholeradestroyedcompletely？WhatcontributionsdidJohnSnowmaketoscience？A:Itwasbelievedthatcholerawascausedbybad____orgermsin_______________.B:Snow____________theplaces

wherethepeoplewho____hadlivedC:Manydeathsoccurrednearthe__________inBroadStreet.Somepeople__________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter_____________________.D:Thepumpwatercarried__________.Matchthefollowingheaderswiththelettersfromthechartabove.WriteA-Eintheblanks.conclusionevidencehandleprocesssolutiontheoriesReadthepassageagainandcompletethechartbelow.E:The_______ofthepumpwasremoved.airfoodorwatermarkedondiedwaterpumphadn’tdrinkingwaterfromthepumpcholeragermsPost-readingInordernottogetinfectedwithdisease,whatshouldwepayattentiontoinourdailylife.Drinkboiledwater.Remembertowearamaskwhengoingout.Heatthefoodleftovernight.Washyourhandsoften.Cookrawfoodthoroughly.Dealwithrubbishtimelyandpro