2019-2020年高考英语一轮复习Unit1Greatscientists导学案新人教版必修5.doc

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1、2019-2020年高考英语一轮复习Unit1Greatscientists导学案新人教版必修5JOHNSNOWDEFEATS“KINGGHOLERA”JohnSnowwasafamousdoctorinLondon—soexpert,indeed,thatheattendedQueenVictoria1.____herpersonalphysician.Buthebecame2.______(inspire)whenhethoughtabouthelpingordinarypeople3._________(expose)tocholera.Thiswasthedeadlydisea

2、seofitsday.Neitheritscause4.______itscurewasunderstood.Somanythousandsofterrifiedpeoplediedeverytimetherewasanoutbreak.JohnSnowwantedtofacethechallengeandsolvethisproblem.Heknewthatcholerawouldneverbecontrolled5._______itscausewasfound.Hebecameinterestedintwotheories6._____possiblyexplainedhowch

3、olerakilledpeople.Thefirstsuggestedthatcholeramultipliedintheair.Acloudofdangerousgasfloatedarounduntilitfounditsvictims.Thesecondsuggestedthatpeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.Fromthestomachthediseasequicklyattackedthebodyandsoonthe7._________(affect)persondied.JohnSnowsusp

4、ectedthatthesecondtheorywascorrectbutheneededevidence.SowhenanotheroutbreakhitLondonin1854,hewasreadytobeginhisenquiry.Asthediseasespreadquicklythroughpoorneighbourhoods,hebegantogatherinformation.Intwoparticularstreets,thecholeraoutbreakwassoseverethatmorethan500peoplediedintendays.Hewasdetermi

5、nedtofindoutwhy.Firsthemarkedonamaptheexactplaces8.________allthedeadpeoplehadlived.Thisgavehima9._________(value)clueaboutthecauseofthedisease.ManyofthedeathswerenearthewaterpumpinBroadStreet(especiallynumbers16,37,38and40).Healsonoticedthatsomehouses(suchas20and21BroadStreetand8and8CambridgeSt

6、reet)hadhadnodeaths.Hehadnot10.________(foresee)this,sohemadefurtherinvestigations.Hediscoveredthatthesepeopleworkedinthepubat7CambridgeStreet.Theyhadbeengivenfreebeerandsohadnot11._________(drink)thewaterfromthepump.Itseemedthatthewaterwastoblame.Next,JohnSnowlookedintothesourceofthewaterforthe

7、setwostreets.Hefoundthatitcamefromtheriver12.__________(pollute)bythedirtywaterfromLondon.HeimmediatelytoldtheastonishedpeopleinBroadStreettoremovethehandlefromthepumpsothatitcouldnotbeused.Soonafterwardsthediseasesloweddown