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新人教版选择性必修Book2Unit1ScienceandScientistsReadingandThinkingP1-4LearningobjectivesInthisclass,youwillgetinformationaboutwhatischolera;getinformationaboutwhoisJohnSnow;getinformationabouthowJohnSnowdefeatedcholera;summarizethestagesofscientificresearch;talkaboutthesignificanceandcontributionofJohn’swork;learnthelanguagepointsofthepassage;finishthecorrespondingexercises.LeadinGetvaccinatedSelf-isolationMaskup
WesticktogethertodefeatCOVID-19.
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👊AnepidemicjustlikecoronavirushitEuropeintheearly19thcentury,doyouknowwhatitis?Cholerainfectionbeginsinthestomach.Approximately1in10peoplewhogetsickwithcholerawilldevelopseveresymptomssuchaswaterydiarrhea(腹泻),vomiting(呕吐),andlegcramps(腿痛性痉挛).CholeraDeathoffirstcholeracaseinLondonduringthe1848-49epidemicPreviouscholeraepidemicinGreatBritainin1831-321.Discussthefollowingstagesofscientificresearchingroups.Whatorderwouldyouputthemin?StagesofScientificResearch______analysetheresults ______askaquestion______drawaconclusion ______collectdata______findaproblem ______findsupportingevidence______thinkofamethodHerearesomefactsaboutcholera.Trytopresentthemtoyourpartnersandconsiderwhethertheyarethesameasyouexpected.1.Choleracankillsuffererswithinafewhoursiftheyareleftuntreated.2.Researchershaveestimatedthateachyearthereare1.3millionto4millioncasesofcholera,and21,
000to143,
000deathsworldwideduetocholera.3.Upto80%ofcasescanbesuccessfullytreatedwithoralrehydrationsolution(口服补液).4.Safewaterandwastecontrolcanpreventcholera.5.Whenthereisanoutbreakofcholera,itisimportanttofocusontreatmentandwastecontrol.6.Safeandeffectivecholeravaccines(疫苗)arenowusedtocontrolthedisease.7.Today,nocountryrequiresproofofcholeravaccinationasaconditionforentry.2.Skimthepassagetoseeiftheorderyoudecidedabovewascorrect,andfindthemainideaofthepassage.JohnSnowwasawell-knowndoctorinLondon.ThecauseofCholerawaspollutedwater.Thesourceofalldrinkingwatershouldbeexamined.HowJohnSnowcollected,analyseddataandfoundthecauseofthediseaseanddefeatedit.drawaconclusionfindaproblemaskaquestioncollectdatafindsupportingevidenceWhatcausescholera?Whichtheoryiscorrect?Markinformationonamaptofindoutwherepeoplediedordidnotdie.Findotherevidencetoconfirmtheconclusion.Thewateristoblame.Thesourceofalldrinkingwatershouldbeexaminedsothatitissafe.Usethestagesinexamininganewscientificideatodescribeeachparagraph.Rereadthewholetextquicklyandmatchthemainidea.Para.1Para.2Para.4Para.5JohnSnowdesiredtodestroycholera.JohnSnowdecidedtoprovethesecond
theory.Snowbeganhisstudybymarkingonthemap.Truthoftheinfectionofcholera.Snow’scontributions.Para.3FastreadingCarefulreadingCholeraSnowIt'soneof________________________intheworld,becauseitcauses_________________________________________._______________________(time),anoutbreakofcholerahit_______,milionsofpeople______________________.Herosetobecome_________________,andeven_______________QueenVictoria
whenshegavebirth..Snowbecame________becausenooneknew_________________.However,hehadadesireto________________onceandforall.themostfeareddiseasesseverediarrhoeaanddehydrationandevendeathPara1
Intheearly19thcenturyEuropediedfromthediseasefrustratedhowtopreventortreatcholeraafamousdoctorattendedtodestroycholeraThoughbeingfamous,hewasstilldevotedtodefeating“KingCholera”
Para1What&who?Theoryone:_______Theorytwo:_______SymptomsSymptoms(症状)coughsneezerunnynoseDiarrhoeadehydrationbadaircausedthediseaseaninfectionfromgermsinfoodorwaterPara2
WhatwerethetwotheoriesandwhichdidJohnSnowagreewith?Snowsubscribedto
thesecondtheory.AmapofBroadStreet-”CholeraMap”WhatmethoddidSnowuse?1)Whichhouseshadmorethan4deathsinBroadStreet?2)WhichhouseshadnodeathinBroadStreet?Multipledeathshappenedhere.Nodeathhappenedhere.Hesuspectedthatthewaterfromthepumpwastoblame.
Para3
Readpara.2-3againandcompletethechartbelow.A:Itwasbelievedthatcholerawascausedbybad___orgermsin___________.B:Snow_______________theplaceswherethepeople
who____hadlived.
C:◆
Manydeathsoccurrednearthe__________inBroadStreet.◆
Somepeople________drunkthewaterfromthepump,andlived.◆
AwomanandherdaughterdiedinanotherpartofLondonafter_____________________.D:Thepumpwatercarried_____________.E:The______ofthepumpwasremoved.Matchthefollowingheaderswiththelettersfromthechartabove.WriteA-Eintheblanks.1.conclusion2.evidence3.process4.solution5.theories__________________________________airfoodorwatermarkedonamapdiedwaterpumphadn'tdrinkingwaterfromthepumpcholeragermshandleDCBEAconclusionevidenceprocesssolutiontheoriesPara2-3How?ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.Moreover,SnowwaslaterabletoshowalinkbetweenothercasesofcholeraandthedifferentwatercompaniesinLondon.SomecompaniessoldwaterfromtheRiverThamesthatwaspollutedbyrawwaste.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthosewhodrankpureorboiledwater.Para4TruthWhatcausedtheoutbreakofcholerainLondon?A.BadairB.WaterinfectedbyrawwasteC.PollutedairD.WaterpollutedbytheairItwasbelievedthatcholerawascausedby_______orgermsin__________.Thepumpwatercarried___________.Manydeathsoccurrednearthe______________inBroadStreet.Somepeoplewholivednearthepumpworkedinthepuband_________drunkthewaterfromthepump,andlived.Awomanandherdaughterhaddiedafter________________________,becauseshehadthewater_________________everyday.Snowbeganby_______________theplaceswherepeople_________.Snowhadthehandleofthepump_________.badairfoodorwatermarkingdiedhadlivedwaterpumphadnotmovingawayfromBroadStreetdeliveredtoherhousecholeragermsremovedTheoriesProcessEvidenceConclusionSolutionSummaryPragmaticanalysis
1.Whydoestheauthorwritethispassage?2.Whatattitudedoestheauthorhold?Findoutyoursupportingevidence.3.Inwhatorderdoesthepassagedevelop?Findoutthesignposts.
Tointroducethep
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