《伽利略的望远镜》PPT课件

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1、Unit3Inventorsandinventions1.Doyouknowsomefamousinventorsandtheirinventions?Trytomakealistofthem.LeadinginWhataretheimportantinventionsofthe20thcentury?Whichdoyouthinkisthemostimportantone?YearInventionInventor(s)1902AirconditionWillisCarrie1903Gas-motoredandmannedplan

2、eWrightbrothers1910ThefirsttalkingfilmThomasEdison1923TelevisionLogieBaird1928PenicillinAlexanderFleming1937photocopierChesterFCarlson1940ColortelevisionPeterGoldmark1942ElectronicdigitalcomputerAmericanscientists1945AtomicbombAmericanscientists1950CreditcardsRalphSchn

3、eide1985WindowsOSMicrosoftCompany1990WorldWideWebTimburners-leeWarmingupDiscussion:WhowasEdison?Doyouknowhowmanyinventionshemade?Canyoumentionsomeofthem?Everybodyknowsheinventedtheelectricbulb.Alampcan’tgivelightwithoutelectricity.ThomasEdisoninventedtheelectricbulb.Di

4、dEdisoninventelectricity?Canelectricitybeinvented?Iselectricityaninventionordiscovery?Why?2.Whichofthispicturesshowinventions?Doesanyofthemshowdiscoverers?Stephenson’s“Rocket”AnamphibiouscarDNA伽利略的望远镜牛顿制造的反射望远镜X射线广泛用于医学领域谷腾堡发明的印刷机英国钟表匠阿克莱特发明的水力纺纱机3.Workoutrulesthatwill

5、helpyoudecidewhatisdiscoveryandwhatisaninvention?(1)AdiscoveryisAdiscoverymerelymakesknownsomethingthatalreadyexistinnature,suchasthediscoveryontheNewContinentbyColumbia.(2)Aninventionissomethingthatcreatedbyhumanbeing,suchasthelightingrod.DiscoveriesInventions1.Electr

6、icity1.Systemsofdeliveringelectricallightandheatingtohomesandoffices2.Householdmachinesforwashing,ironing,keepingfoodcold,etc3.Computers,telephones,television,etcDiscoveriesInventions2.Themovementofair1.Airplanejetengines2.Airballoons,etcMachinestohelppeoplewithserious

7、disease(likekidneyfailure)3.ThecirculationofthebloodDiscoveriesInventions4.X-raysBodyscannerstoseewhetheryouareill2.Machinestotreatillnesses(likecancer)4.Nowinpairsdiscussanymoderninventionsyouknow.Describethemtoyourpartnerandhowusefultheyareinlifetoday.Doyouknowthesta

8、geseveryinventormustgothroughbeforetheycanhavetheirinventionapproved?Heregiveyousomesimilarstagesusedinresearch,pleas