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1、第二部分：阅读判断第一篇 InventorofLED WhenNickHolonyaksetouttocreateanewkindofvisiblelightingusingsemiconductoralloys,hiscolleaguesthoughthewasunrealistic.Today,hisdiscoveryoflight-emittingdiodesor1LEDs,areusedineverythingfromDVDstoalarmclockstoairports.Dozensofhisstudents
2、havecontinuedhiswork,developinglightingusedintrafficlightsandothereverydaytechnology. OnApril23,2004,Holonyakreceivedthe$500,000Lemelson-MITPrizeataceremonyinWashington.Thismarksthe10thyearthattheLemelson-MITProgramattheMassachusettsInstituteofTechnology（MIT）has
3、giventheawardtoprominentinventors. "Anytimeyougetanaward,bigorlittle2,it'salwaysasurprise,"Holonyaksaid. Holonyak,75,wasastudentofJohnBardeen,aninventorofthetransistor,intheearly1950s.Aftergraduateschool3,HolonyakworkedatBellLabs.HelaterwenttoGeneralElectric4,w
4、hereheinventedaswitchnowwidelyusedinhousedimmerswitches5. Later,Holonyakstartedlookingintohowsemiconductorscouldbeusedtogeneratelight.Butwhilehiscolleagueswerelookingathowtogenerateinvisiblelight,bewantedtogeneratevisiblelight.TheLEDsheinventedin1962nowlastabout
5、10timeslongerthanincandescentbulbs,andaremoreenvironmentallyfriendlyandcosteffective. Holonyak,nowaprofessorofelectricalandcomputerengineeringandphysicsattheUniversityofIllinois,saidhesuspectedthatLEDswouldbecomeascommonplaceastheyaretoday.Butdidn'trealizehowman
6、yusestheywouldhave. "Youdon'tknowinthebeginning.Youthinkyou'redoingsomethingimportant,youthinkit'sworthdoing,butyoureallycan'ttellwhatthebigpayoffisgoingtobe,andwhen,andhow.Youjustdon'tknow,"hesaid. TheLemelson-MITProgramalsorecognizedEdithFlanigen,75,withthe$1
7、00,000Lemelson-MITLifetimeAchievementAwardforherworkonanewgenerationof"molecularsieves"thatcanseparatemoleculesbysize.词汇： semiconductor/?sem?k?n’d?kt?(r)/n．半导体 alloy/’?l??,?’l??/n．合金 emit/?’m?t/v．发射，发出 diode/’da???d/n．二极管 dim/d?m/adj．灯光昏暗的 incandescent/,?nk
8、?n’desnt/adj．白炽的 bulb/b?lb/n．灯泡 commonplace/’k?m?nple?s/adj．普通的 molecular/m?(?)’lekj?l?(r)/adj．分子的 sieve/s?v/n．筛 注释： 1．or：即 2．bigorlittle：不论是大还是小 3．aft
