英語人教版高中選擇性必修二（2019新編）1-2 Reading and thinking （課件）

Unit1ScienceandScientistsPeriod1ReadingandThinking1.EnabletheSstogettoknowsomeknowledgeaboutCholera.

2.EnabletheSstounderstandthepassagewell.3.To

learn

from

the

great

scientists

and

develop

the

noble

spirits

.Step1.Lead-inNamesomefamousscientistsyouknowandtellsomethingaboutthem.ArchimedesCharlesDarwinTuYouyouGregorMendelMarieCurieThomasEdisonZhangHengZhongNansha Besidescoronavirus,whatotherkindsofepidemics（流行?。ヾoyouknow?Bird-flumalariaplague（鼠疫）

EbolaSmallpox（天花）CholeraWatchavideoaboutJohn

SnowandtheCholera.Lookatthepicture,thetitleandthemap,guesswhatthecontentofthetextis.Thenskimitquicklytoseeifyouareright.Step2.Pre-readingThetextismainlyabout____________and_______hedefeatedkingcholera.howJohnSnowStep3.While-readingJohnSnowdesiredtodestroycholera.JohnSnowdecidedtoprovethesecondtheory.Snow'scontributionsPara.1Para.4Para.3Para.21.Listenandmatchthemainideaswitheachparagraph.Para.5Snowbeganhisstudybymarkingonthemapandtheprocess.Truthoftheinfectionofcholera.2.Readthe1stparagraphquicklyandfillinthemindmap.CholeraWhat?It'soneof______________________intheworld,becauseitcauses____________________________________________.When?

_______________________Where?

_______________________Whatresults?

_______________________themostfeareddiseasesseverediarrhoea,dehydrationandevendeath.Intheearly19thcenturyEuropeMillionsofpeoplediedfromthedisease3.ReadPara.2and3andchoosethebestchoice.1.WhydidJohnSnowbecomefrustrated?A.AnoutbreakofcholerahitEurope.B.Nobodyknewhowtopreventortreatcholera.C.Cholerausedtobeoneofthemostfeareddiseases.D.HehadtoattendtoQueenVictoriawhenshegavebirth.2.HowdidJohnSnowdotheresearch?A.Byusingmapsandstatistics.B.Bydrinkingthewaterhimself.C.Byquestioningthepatients.D.Byexperimentingwithhimself.3.Whyhadsomehouseholdshadnodeaths?A.Beerwasacureforthedisease.B.Theylivedfarawayfromthewaterpump.C.Theyhadnotdrunkthewaterfromthepump.D.Theyworkedinthepubat7CambridgeStreet.4.HowdidJohnSnowstopthepeoplefromusingthewaterfromthepump?A.Bytellingpeoplethatthewaterwaspolluted.B.Byaskingwatercompaniestosellpurewater.C.Byremovingthehandleofthewaterpump.D.Bydrinkingmorefreebeer.4.ReadPara2and3againtocompletethechart.Itwasbelievedthatcholerawascausedby_______orgermsin__________.Thepumpwatercarried___________.Manydeathsoccurrednearthe______________inBroadStreet.Somepeoplewholivednearthepumpworkedinthepuband_________drunkthewaterfromthepump,andlived.Awomanandherdaughterhaddiedafter______________________________,becauseshehadthewater____________________everyday.Snowbeganby_________________theplaceswherepeople_____________.Snowhadthehandleofthepump_________.ABCDEbadairfoodorwatermarkingonthemapdiedhadlivedwaterpumphadnotmovingawayfromBroadStreetdeliveredtoherhousecholeragermsremovedSupportingevidenceF5.ReadPara4andanswerthequestionsbelow.1.Whatcausedcholera'soutbreakintheBroadStreet?ThetruthwasthatthewaterfromtheBroadStreetpumphadbeeninfectedbywaste.2.Howwerepeopleinfectedwiththevirusofcholera?SomecompaniessoldwaterfromtheRiverThamesthatwaspollutedbyrawwaste.Thepeoplewhodrankthiswaterweremuchmorelikelytogetcholerathanthosewhodrankpureorboiledwater.6.ReadPara5carefullyandfillintheblanks.Theresult:ThroughSnow’stireless

,watercompaniesbegantosell

,andthethreatofcholeraaroundtheworldsawasubstantial

.

,choleraisstillaproblem.Eachyear,

ofpeoplearoundtheworldgetcholeraandmany

it.effortscleanwaterdecreaseHowevermillionsdiefromStep4.Post-readingDiscussion

1.JohnSnowbelievedIdea2wasright.Howdidhefinallyproveit?2.Choleraisa19thcenturydisease.Whatdiseasedoyouthinkissimilartocholeratoday?3.Whatqualitiesdoyouneedtobeascientist?1.JohnSnowbelievedIdea2wasright.Howdidhefinallyproveit?

JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera,collectedinformationandwasabletotiecasesoutsidetheareatothepollutedwater.2.Choleraisa19thcenturydisease.Whatdiseasedoyouthinkissimilartocholeratoday?SARSandCovid-19becausetheyarebothdeadlyandfatallyinfectious,haveanunknowncauseandneedseriouspublichealthcaretosolvethemurgently.hardworkdevotiondeterminationpassioncreativityselflessnessstrictattitudeIntheearly19thcentury,anoutbreakofcholerahitEurope,_________(cause)millionsofdeaths.seeingthis,JohnSnowbecamefrustratedbecausenooneknewhow___________(prevent)ortreatcholera.Atthattime,doctorshadtwotheoriestoexplainhowcholeraspread.Onewasthatbadaircausedthediseaseandanotherwasthatcholerawascausedbygermsinfoodorwater.Johndiscoveredthatintwoparticularstreet_____choleraoutbreakwas_____severethatover500peoplediedintendays.Throughhisserious____________(investigate),hef