人教版必修5：Unit1-Great-Scientists-warming-up-and-reading2课件

Unit1GreatScientistsUnit1GreatScientists1ArchimedesHelivedinAncientGreeceHediscoveredthatobjectsinwaterareliftedupbyaforce.Thistheoryhelpedhimsolvetheproblemraisedbytheking.Heoncesaid,“givemeaplacetostandon,andIcanmovetheearth.”Warming

upArchimedesHelivedinAncient2lightbulblightbulb3CharlesDarwinHewasbornin1808,inBritain.Hewroteafamousbookwhichchangedthewaywethinkaboutourlives.Atthattimepeoplethoughtalllivingthingswereperfect,sowouldneverneedtochange.Heputforwardhistheorythatanimalsandplantsdevelopedastheenvironmentchanged.CharlesDarwinHewasbornin144.Whoinventedthefirststeamengine?ThomasNewcomen

(1663-1729)British4.Whoinventedthefirststea55.Whodiscoveredradium?MarieCurie(1867-1934)PolishandFrench,wontwoNobelPrizes5.Whodiscoveredradium?Marie6LeonardodaVinci(1452-1519)ItalianartistLeonardodaVinci7ZhangHeng(78-139)Chinese,inventedseismographZhangHeng(78-139)Chinese,i8StephenHawking(1942--)British,aphysicistStephenHawking(1942--)Brit9Whatdoyouthinkwhenyouseethesewords?HowaboutCholera?

AIDSTB(肺结核)bird-fluSARSSpreadfromonepersontoanother.SoitisaninfectiousDisease.infect/affect

peopleWhatdoyouthinkwhenyousee10bacteriaofcholerabacteriaofcholera11

Itinfectspeople’sintestines(肠道),causingdiarrhoea(腹泻),vomiting(呕吐)anddehydration(脱水)

ManydeathsinAfricancountriesin2005andevennowItinfectspeople’sinte12Whocanhelpusoutofthetrouble?Whocaneasethepain?Scientists&doctorsWhocanhelpusoutofthetro13JohnSnow(1813~1858)EnglishmanCholeradefeatJohnSnowCholeradefeat14ReadingJohnSnowdefeats“Kingcholera”ReadingJohnSnowdefeats“King15What’sthemainideaofthepassage?AJohnSnowwasawell-knowndoctorinLondon.BThecauseofCholerawaspollutedwater.CThesourceofalldrinkingwatershouldbeexamined.DHowdidJohnSnowcollect,analyzedataandfindthecauseofthediseaseandsolvedit.What’sthemainideaofthepa16TwotheoriesIn1854500,1016,37,38and4020,21;8,97Thefirst…;thesecond…AnotheroutbreakhitLondon.Morethan500peoplehaddiedin10days.ThesenumbersinBroadStreetnearthewaterpumphadmanyofthedeaths.20and21BroadStreetand8and9CambridgeStreethadnodeaths….Theydidn’tdrinkthewaterfromtheBroadStreetpump.Thesefamiliesworkedinthepubat7CambridgeStreet.TwotheoriesIn1854500,1016,17Part1Part2Part3part4(7)(2)(3-6)(1)DrawaconclusionThinkofamethod

Collectresults

MakeupaquestionFindaproblemAnalysetheresultsFindsupportingevidencePart1(7)(2)(3-6)(1)Drawacon18ScientificReportbyJohnSnowNobodyknewthecauseoftheseriousdiseaseofcholera.Idea1,…Idea2,…Collectinformationfromthecholeraoutbreaktoprovewhichtheorywascorrect.Hefoundthecauseofcholerawasthepollutedwater.2.Becausetherewasaconnectionbetweenthedrinkingwaterandthedeaths.JohnSnowwasabletoshowtatcholeracouldbedefeatednowthatitscausewasknown.TheproblemThecauseThemethodTheresultsIdea1or2?Why?TheconclusionScientificReportbyJohnSnow19JohnSnowwasa__________doctorinLondoninthe___century.Hewantedtofindthe______ofcholerainorderto______it.In1854whenacholera______out,hebegantogatherinformation.He______onamapwhereallthedeadpeoplehadlivedandhefoundthatmanypeoplewhohaddrunkthedirtywaterfromthe______died.Sohedecidedthatthepollutedwatercarriedcholera.Hesuggestedthatthe______ofallwatersupply___________andnewmethodsof__