人教版选修八课件Unit 3 Inventors and inventions Warming up&Reading

Unit3Inventorsandinventions Whataretheimportantinventionsofthe20thcentury?Whichdoyouthinkisthemostimportantone? YearInventionInventor(s)1902AirconditionWillisCarrie1903Gas-motoredandmannedplaneWrightbrothers1910ThefirsttalkingfilmThomasEdison1923TelevisionLogieBaird 1928PenicillinAlexanderFleming1937photocopierChesterFCarlson1940ColortelevisionPeterGoldmark1942ElectronicdigitalcomputerAmericanscientists 1945AtomicbombAmericanscientists1950CreditcardsRalphSchneide1985WindowsOSMicrosoftCompany1990WorldWideWebTimburners-lee WarmingupDiscussion:WhowasEdison?Doyouknowhowmanyinventionshemade?Canyoumentionsomeofthem?Everybodyknowsheinventedtheelectricbulb.Alampcan’tgivelightwithoutelectricity. ThomasEdisoninventedtheelectricbulb. DidEdisoninventelectricity?Canelectricitybeinvented?Iselectricityaninventionordiscovery?Why? 2.Whichofthispicturesshowinventions?Doesanyofthemshowdiscoverers? Stephenson’s“Rocket” Anamphibiouscar DNA 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.Workoutrulesthatwillhelpyoudecidewhatisdiscoveryandwhatisaninvention?(1)AdiscoveryisAdiscoverymerelymakesknownsomethingthatalreadyexistinnature,suchasthediscoveryontheNewContinentbyColumbia. (2)Aninventionissomethingthatcreatedbyhumanbeing,suchasthelightingrod. DiscoveriesInventions1.Electricity1.Systemsofdeliveringelectricallightandheatingtohomesandoffices2.Householdmachinesforwashing,ironing,keepingfoodcold,etc3.Computers,telephones,television,etc DiscoveriesInventions2.Themovementofair1.Airplanejetengines2.Airballoons,etcMachinestohelppeoplewithseriousdisease(likekidneyfailure)3.Thecirculationoftheblood DiscoveriesInventions4.X-raysBodyscannerstoseewhetheryouareill2.Machinestotreatillnesses(likecancer) 4.Nowinpairsdiscussanymoderninventionsyouknow.Describethemtoyourpartnerandhowusefultheyareinlifetoday. Doyouknowthestageseveryinventormustgothroughbeforetheycanhavetheirinventionapproved?Heregiveyousomesimilarstagesusedinresearch,pleaseouttheminthesuitableorder.Pre-reading Applyingforapatent2.Findingaproblem3.Doingresearch4.Testingthesolution5.Thinkingofacreativesolution6.Decidingontheinvention Asyoureadthefollowingpassage,checktheorderyouwroteabovetoseewhetheritfollowsthecorrectstagesinproducinganinvention.Reading Thetextnarratestheproblemofthesnakesandpresentstheproceduresofcatchingthemandapplyingforapatent,fromwhichwehavegotabetterunderstandingofhowtodoscientificresearchesandhowtoapplyforaFastreading1.What’sthemainideaofthetext? patent.Afterlearning,weknowthatitusuallycostssometimeandcontinuouseffortsinordertosolvesomepracticalproblemsinascientificway. Thewriterwantstoinformusofthescientificmethodstosolvepresentproblemsothatwestudentscannotonlybroadenthehorizonsbutbecomemoreskilledindiscoveringandconsideringcarefullytheproblemsindailylife.2.What’sthewritingpurposeofthewriter? Wearealsoencouragedbythewritertobecreativeandhardworkingaswellasthinkingindependently. ParaStagesintheinventingprocessExampleinthisstory12FindaproblemThesnakesmustberemovedbutnotharmedDoresearchLookformethodsofremoval;thehabitsofsnakes3.Thestagesinmakinganinvention. 34,5,67TestthesolutionseveraltimesTrythreetimestomakeitworkefficientlyApplyforapatentThismeansthesolutionisrecognizedThinkofacreativesolutionIdentifythreepossibleapproaches:chooseone 4.Dividethepassageintoseveralpartsandfindoutthemainideaforeachparagraph.Part1(para.1)thediscoveryoftheproblemofthesnakes Part2(para.2-3)theresearchontheapproachestosolvetheproblemPart3(para.4-6)theattemptstocatchthesnakesPart4(para.7-8)therequirementsofgettingapatent 5.Whatarethethreecreativestepsthatthewritertakestocatchthesnakeswithouthurtingthem?1)toputthefrozenbowloverthesnakes’habitatinthemorning.2)toputthefrozenbowloverthesnakes’habitatintheevening. 3)toputthefrozenbowloverthesnakes’habitintheeveningandcarryanettocollectthesnakeswithoutharmingthemthenextmorning. 6.Whydidcoolingthesnakesmakethemlessactive?Thecoolingmadethesnakeslessactivebecausetheyarereptilesandtheirbodytemperaturedependsontheheataroundthem. 7.Discusswithyourpartnerwhattheadvantagesmightbeofgettingapatent.Youareabletoprovethatyouwerethefirstpersontomaketheinvention.Youarerecognizedasarealinventor.Youcanmakemoneyifyousellyourinventiontoothers.