ThefirstworkingairplanewasinventedandflownbytheWrightbrothers，WilburWright（1867—1912）．AndOrvilleWright（1871—1948）Their“WrightFlyer”wasabiplanewithawoodenframe．Thepowerwassuppliedbya12-hoursep
ThefirstworkingairplanewasinventedandflownbytheWrightbrothers，WilburWright（1867—1912）．AndOrvilleWright（1871—1948）Their“WrightFlyer”wasabiplanewithawoodenframe．Thepowerwassuppliedbya12-hoursepowerengine．
OrvilleandWilburWrightwereraisedinDayton，Ohio．Althoughtheydidnotgotocollege，thebrothershadgreattechnicalability．Beforebuildingtheirairplane，theyhadbuiltaprintingpressandlainabicyclerepairandsalesshop．Theymadetheirownbicyclesandthemoneyearnedfromtheirbicyclebusinessfundedtheirairplane-building．
Thebrothers'firstglider（滑翔机），testedin1900，failedtofly．Asecondtrialin1901wasbetter，buttheywentonimprovingthedesign．Laterthatyear，thebrotherstestedover200wingandairframedesigns，whichresultedinasuccessfulglidermodel．Theyalsodesigneda12-horsepowerenginetopowertheflightofatwo-propeller（双螺旋桨）plane．ThemachinistCharlesTaylorhelpedthembuildanewplanewhichwouldusethisengine．
Theybegantestflightsin1903．Afterdaysoftrials，theplanefinallyflewintotheair，stayingupfor12seconds，itflew120feet．Thatday，thebrotherstookturnsflyingtheplane．Onthelastflightthatday，Wilburflew852feetin59seconds．
Duringthenextfewyears，thebrothersdevelopedmoreplanes．TheylaterformedtheWrightCompany，whichbuiltandsoldtheirairplanes．WilburWrightdiedin1912；Orvillediedin1948．TheWrightbrothers'famousairplane，the“WrightFlyer”isonshowattheNationalAirandSpaceMuseuminWashington，D．C．USA．
1．Whatisthispassagemainlyabout?
A．WhentheWrightbrothersflewtheirfirstplane．
B．Howthefirstworkingairplanewasinvented．
C．TheWrightbrothersasgreatinventors．
D．AbriefintroductiontothelifeoftheWrightbrothers．
2．HowdidtheWrightbrothersgetthemoneytobuildairplanes?
A．Bysellingprintingmachines． B．Byrepairingmachinesforothers．
C．Bymakingandsellingbicycles． D．Bycollectingmoneyfromothers．
3．Accordingtothepassage，allofthefollowingstatementsarecorrectEXCEPTthat________．
A．bothoftheWrightbrothersflewthe“Wrigh