2022職稱英語考試模全真擬試題理工類C級第二套2Holonyak,75，wasastudentofJohnBardeen，aninventorofthetransistor,intheearly1950s．Aftergraduateschool,HolonyakworkedatBenLabs．HelaterwenttoGeneralElectric，whereheinventedaswitchnowwidelyusedinhousedimmerswitches．

Later,Holonyakstarted1ookingintohowsemiconductorscouldbeusedtogenerate1ight．Butwhilehiscolleagueswere1ookingathowtogenerateinvisiblelight，hewantedtogeneratevisiblelight．TheLEDSheinventedin1962nowlastabout10timeslongerthanincandescentbulbs,andaremoreenvironmentallyfriendlyandcosteffective．

Holonyak，nowaprofessorofelectricalandcomputerengineeringandphysicsattheUniversityofIllinois，saidhesuspectedthatLEDswouldbecomeascommonplaceastheyaretoday，butdidn’trealizehowmanyusestheywouldhave．

“Youdon’tknowinthebeginning．YOUthinkyou’redoingsomethingimportant．youthinkit’sworthdoing，butyoureallycan’ttellwhatthebigpayoffisgoingtobe，andwhen，andhow．Youjustdon’tknow，”hesaid．

TheLemelson．MITProgramalsorecognizedEdithFlanigen，75，withthe$100，000

Lemelson-MITLifetimeAchievementAwardforherworkonanewgenerationof“molecularsieves，”thatcanseparatemoleculesbysize．

詞匯：

semiconductorn．半導體

alloyn．合金

dioden．二極管

incandescentadj．白熾的

bulbn．燈泡

commonplaceadj．一般的

molecularadj．分子的

sieven．篩

練習：

1．Holonyak’scolleaguesthoughthewouldfailinhisresearchonLEDsatthetimewhenhestartedit．

A．RightB．WrongC．Notmentioned

2．HolonyakbelievedthathisstudentsthatwereworkingwithhimontheprojectwouldgettheLemelson．MITPrizesoonerorlater．

A。RightB．WrongC．Notmentioned

3．Holonyakwastheinventorofthetransistorintheearly1950s．

A．RightB．WrongC．Notmentioned

4．HolonyakbelievedthatLEDswouldbecomeverypopularinthefuture．

A．RightB．WrongC．Notmentioned

5．Holonyaksaidthatyoushouldnotdoanythingyouarenotinterestedin．

A．RightB．WrongC．Notmentioned

6．EdithFlanigenistheonlyco-inventorofLEDs．

A．RightB．W