高一英语-Unit-1-Great-scientists全套课件-新人教版必修5VIP专享VIP免费

Unit1GreatscientistsUnit1GreatscientistsUnit1GreatscientistsWarmingupWhatimpressyoumostin2003?WhichpersonimpressyoumostduringtheSARS?Whatotherinfectiousdiseasesdoyouknow?Forexample:Whenyoueatsomeseafood……Youfeel……Maybeyouhavegot________.CholeraWarmingup----questions(2m)JohnSnowdefeats“Kingcholera”Skimming:answerthefollowingquestions:1.WhatarethetwotheoriesJohnSnowgotinterestedin?2.WhatdidJohnSnow’experienceshow?3.Howtopreventthediseasehappeningagain?Reading-I----skimming(2m)1.Thetwotheoriesare:Thefirstsuggestedthatcholeramultipliedintheairwithoutreason.Thesecondsuggestedthatpeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.3.Topreventthisfromhappeningagain,JohnSnowsuggestedthatthesourceofallwatersuppliesbeexaminedandnewmethodsofdealingwithpollutedwaterbefound.2.JohnSnowhadshownthatcholerawasspreadbygermsandnotinacloudofgas.Keys:ScientificReportbyJohnSnowTheproblemThecauseIdea1:Idea2:peopleabsorbedthedisease_________________.ThemethodTheresultsIdea1or2?why?Theconclusionthecauseoftheseriousdiseaseofcholera.________________________thatattackedvictims____________fromthenextcholeraattacktotesttheories.Trytoprovewhichmethodwascorrect.Hefoundthecauseofcholerawas____________________.Idea2.Becausethedatashowedaconnectionwiththewater.JohnSnowwasableto___________onceitscausewasknow.Nobodyknew___________________StrangecloudintheairwiththeirmealsCollectdatathepollutedwaterdefeatcholeraReading-II----scanning(3m)DetailedreadingReadthepassageagain,andthenfindoutthedifficultorkeysentenceswiththepartner.Reading-III----detailedreading(2m)1.Buthebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera.Inthecaseofaninfectiousdiseaseitmeansnottakingcaretostopitsspread.2.Hegotinterestedinthetwotheoriesexplaininghowcholerakilledpeople.Thismeansthathebegantofindoutaboutboththeories.3.Itseemedthewaterwastoblame.ThesentencemeansProbablyitwasthewaterthatcausedtheillness.Discussion:Discussthefollowingquestionsingroupsoffour.1.2.3.Cholerawasa19thcenturydisease.Whatdiseasedoyouthinkissimilartocholeratoday?JohnSnowbelievedIdea2wasright.Howdidhefinallyproveit?DoyouthinkJohnSnowwouldhavesolvedthisproblemwith-outthemap?Giveareason.Discussion(4m)Twodiseases,whicharesimilartoday,areSARSandAIDSbecausetheyarebothveryserious,haveanunknowncauseandpublichealthcaretosolvethem.JohnSnowfinallyprovedhisideabecausehefoundanoutbreakthatwasclearlyrelatedtocholera,collectedinformationandwasabletotiecasesoutsidetheareatothepollutedwater.Keys1.2.No.ThemaphelpedJohnSnoworganisehisideas.Hewasabletoidentifythosehouseholdsthathadhadmanydeathsandchecktheirwater-drinkinghabits.Heidentifiedthosehousesthathadhadnodeathsandsurveyedtheirdrinkinghabits.Theevidenceclearlypointedtothepollutedwaterbeingthecause.3.Let’shaveacompetition!Extension(延伸)1.Whichscientistdiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?B.Archimedes阿基米德C.ThomasEdison爱迪生A.CharlesDarwin达尔文2.Whowroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged?A.MarieCurie居里C.CharlesDarwin达尔文B.GregorMendel门道尔3.Whoinventthefirststeamengine?A.ThomasNewcomen纽兴门C.ThomasEdisonB.Archimedes4.Whousedpeastoshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren.A.ThomasEdisonC.ArchimedesB.GregorMendel5.Whodiscoveredradium?A.MarieCurieC.NewtonB.ZhangHeng6.Whoinventedthewayofgivingelectricityto...