高中二年级上学期英语《必修二 Unit 1 ReadingPeter》教学课件

UNIT

1

SCIENCEANDSCIENTISTSReadingJohnSnowDefeats“KingCholera”Learningobjectives

Bytheendoftheperiod,we'llbeabletogetthedetailsabouthowJohnSnowdefeatedcholerabyskimmingandscanningandbuilduptheawarenessofpreventingthecholera.Manyyearsago,aterriblediseasenamedcholera

intheworldkilledmillionsofpeople.Peoplewereveryafraidofit,buttheydidn'tknowwhattodo.Luckily,ayoungdoctordecidedtofindouthowtopreventandtreatthedisease.Finally,thedoctorwonthebattle.

JohnSnowBecauseofsomescientists’greatefforts,nowthecholeraisnotasseriousasthattime.Step1Pre-readingHerearesomefactsaboutcholera.Trytopresentthemtoyourpartnersandconsiderwhethertheyarethesameasyouexpected.1.Choleracankillsuffererswithinafewhoursiftheyareleftuntreated.2.Researchershaveestimatedthateachyearthereare1.3millionto4millioncasesofcholera,and21,

000to143,

000deathsworldwideduetocholera.3.Safewaterandwastecontrolcanpreventcholera.4.Safeandeffectivecholeravaccines(疫苗)arenowusedtocontrolthedisease.Step2While-readingSkimthepassagequicklyandchoosethemainideaofit.JohnSnowwasawell-knowndoctorinLondon.ThecauseofCholerawaspollutedwater.Thesourceofalldrinkingwatershouldbeexamined.HowJohnSnowcollected,analyseddataandfoundthecauseofthediseaseanddefeatedit.Step2While-readingReadthewholepassageandmatchthemainideaofeachpara.Para1

Para2

Para3

Para4Para5

Snowbeganhisstudybymarkingonthemap.JohnSnowdecidedtoprovethesecondtheory.Snow'scontributionsJohnSnowdesiredtodestroycholera.TruthoftheinfectionofcholeraA:Itwasbelievedthatcholerawascausedbybad____orgermsin_______________.B:Snow____________theplaces

wherethepeoplewho____hadlivedC:Manydeathsoccurrednearthe__________inBroadStreet.Somepeople__________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter_____________________.D:Thepumpwatercarried__________.Matchthefollowingheaderswiththelettersfromthechartabove.Writethemintheblanks.(conclusion/evidence/process/solution/theories)handleconclusionevidenceprocesssolutiontheoriesE:The_______ofthepumpwasremoved.airfoodorwatermarkedondiedwaterpumphadn’tdrinkingwaterfromthepumpcholeragermsReadthepassageagainandcompletethechartbelow.multipledeathshappenedhere.Nodeathhappenedhere.Evidence:Thewaterfromthepumpwastoblame.PublichouseClue:freebeerfrompublichouseconclusion:ThewatercamefromtheriverwhichhadbeenpollutedbythedirtywaterfromLondon.

Let'sseehowSnowfoundtheevidenceofdiseasespreading.Wascholeradefeatedcompletely?NoHowtopreventthecholera?Topreventcholerafromspreading,we'dbetterdrinkpureorboiledwaterandeatcleanfood.Step3Post-readingStep3Post-readingReflection:Completethesummarywiththeproperwords.JohnSnowwasawell-known

inLondoninthe

century.Hewantedtofind

ofcholerainordertohelppeople

it.In1854whenacholera

London,hebegantogatherinformation.He

onamap

allthedeadpeoplelivedandhefoundthatmanypeoplewhohad

thedirtywaterfromthe

died.Sohedecidedthatthepollutedwater

carriedcholera.Hesuggestedthatthe

ofallwatersuppliesshouldbe____

andnewmethodswith

waterbefound.Eventually,throughhis

efforts,“kingcholera”was.

doctor/physician19thcauseinfectedhitmarkedwherewaterpumphandleremoved

pollutedtireless/intense

defeatedStep3Post-readingInordernottogetinfectedwithdisease,whatshouldwedoinourdailylife?Drinkboiledwater.Washyourhandsoften.Cookrawfoodthoroughly.De