Unit1ScienceandscientistReadingandthinking課件高中英語人教版選擇性必修第二冊

Period2

WarmingupandReadingQuiz！Whatdoyouknowaboutgreatscientists?1.【必修

三】Unit2LinQiaozhiMotherofTenThousandBabies

2, SheisthethefirstwomanwhoisawardedNobelPrizeinChina.【選必一】Unit1Tuyouyouh3.TheManWhoChangedOurUnderstandingoftheUniverse【選必一】

Unit1GregorMendel4.Chinesescientist,TheMedaloftheRepublic,1“ThefatherofHybridRice”,【選必一】

Unit5YuanLongpingPre-readingCoronavirusaninfectiousdiseaseTheywereinfectedwithCholeraDoyouknowhowtoproveanewideainscientificresearch?DrawaconclusionThinkofamethodCollectresultsMakea

questionFindaproblemAnalyzetheresultsRepeatifnecessaryorder

FindaproblemMakeaquestionThinkofamethodCollectresultsAnalyzetheresultsFindsupportingevidenceDrawaconclusionorderWhatdoyouknowaboutcholera?Cholera:

Itbeginsinthestomachandaseverecasecanleadtodeathwithoutimmediatetreatment.Thevictimsdiedveryquicklyfromalossofliquidafterseverevomiting(嘔吐)anddiarrhoea(腹瀉).Anyhow,itwasfinallydefeatedbyJohnSnow.JohnSnowReadingJohnSnowDefeats“KingCholera”JohnSnow

defeats“kingcholera”AphysicianGuessingfromthetitleWhatdoesthetexttellus?BriefReadingThetextismainlyabout__________andhowhe____________________.JohnSnowdefeatedkingcholeraFindoutthemainideaofeachparagraph.JohnSnowwantedtousehisknowledgetosolve________.Hegotinterestedin______________.Heneededtoprovethesecondtheorywas________.Hefoundoutthat___________wasthecauseofcholera.Para.1Para.2Para.3Para.4Para.5、6Para.7_________watercarriedthedisease.Finally,“KingCholera”was_______.choleratwo

theoriesPollutedcorrectdirtywaterdefeated

Carefulreading___JohnSnowbegantotesttwotheories.___AnoutbreakofcholerahitLondonin1854.___JohnSnowmarkedthedeathsonamap.___Heannouncedthatthewatercarriedthedisease.___JohnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.___KingCholerawasdefeated.___Hefoundthatmostofthedeathswerenearawaterpump.___Hehadthehandleremovedfromthewaterpump.Readthepassageandnumbertheseeventsintheorderthattheyhappened24173856WhoisJohnSnow?

AfamousdoctorinLondon.relationship

attendedherasherpersonalphysicianPara.12.WhatelsedoyouknowaboutJohnSnow?Hethoughtabouthelpingordinarypeople_________tocholera.Thoughthecauseandthe______ofitwereunknown,hewantedtofacethe__________andsolvetheproblem.Para.1exposedcurechallenge3.WhypeoplethoughtCholeraadeadlydisease?Neitheritscause,noritscurewasunderstood.1.Whatwerethetwotheoriesaboutthecauseofcholera?2.WhichdidJohnSnowwanttoprove?3.Whatwashismethodofdoingtheresearch?a.Choleramultipliedintheair.b.Peopleabsorbedcholeraintotheirbodieswiththeirmeals.Thesecondone.Togatherinformationintwoparticularstreets.Para.2&3AmapofBroadStreetWhatmethoddidheuse?BroadStreetManydeathshappenedhere.Nodeathhappenedhere.Thewaterfromthepumpwastoblame.PublichousePara.4ManyofthedeathswerenearthewaterpumpinBroadStreet.deathPartofSnow’sCholeraMapPara.4Whatvaluablecluedidhegetaboutthecauseofthedisease?Whathappenedtothepumpwater?ThewaterwasfromtheriverwhichhadbeenpollutedbythedirtywaterfromLondon.Para.5Whattodo?RemovethehandleThediseasesloweddown.Itcouldn’tbesousedsothatWhathappened?Whatextraevidencedidhefind?

Awomanandherdaughterwholivedfarawaybutdrankthewateralsodied.Thepollutedwatercarriedthedisease.Para.61.Suggestedthatthesourceofallwatersuppliesbeexamined.2.Instructedthewatercompaniesnottoexposepeopletothepollutedwateranymore.Topreventcholerafromspreadingagain,whatdidJohnSnowdo?Para.7DiscussionWhatshouldwedotoavoidgettinginfectedwithcholera?Mysuggestions★Weshoulddrinkboiledwater.★Weshouldremembertowashourhandsoften.★Weshouldkeepawayfromflies.★Weshouldneverthrowrubbishatrandom.

★Weshouldkeepourlivingsurroundingsascleanaspossible.Summary

JohnSnowmadeuphismindtohelpordinarypeople________tocholera.Atthattime,nooneknewitscauseor_____.Heknewitwouldneverbe_________untilitscausewasfound.WhenanotheroutbreakhitLondonin1854,hebegantogatherinformationFinally,he__________thatthewaterwasto______.Hefoundallthedeathswere_______tothepollutedwater,sohewasableto__________withcertaintythatpolluted