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群文阅读与练习
Modernmodelofsci-techinChina
IfthereisasinglethemethroughoutthehistoryofscienceandtechnologyinChina,itisself-improvement.ChinesescientistGuSongfen,whowonChinastopscienceaward,isamodernmodeloftheself-taughtman.
Bornin1930,GuisanaircraftdesignerattheAviation(航天)IndustryCorporationofChina,Ltd.,thecountrysleadingaircraftmaker.Attheageof21,hejoinedChinasaviationindustrywhenitwasinitsearlydevelopment.
In1956,ChinasfirstaircraftdesignofficewasestablishedinShenyang,LiaoningProvince,anditsfirsttaskwastodevelopthecountrysfirsthomegrownjetaircraft.Guwasappointedheadoftheaerodynamics(空气动力学)team.
Inthe1950s,Chinahadnoaviationexperience,equipmentorwindtunnels.Gudecidedtoteachhimself.HevisitedthelibraryatBeihangUniversityeverydaytosearchforalltheinformationheneeded.Basedonthatinformation,GucameupwithanaerodynamicdesignsystemandonJuly26,1958,aftertwoyearsofdevelopment,histeamcelebratedthemaidenflightofChinasfirsttrainingjet.
GuwentontoworkonthedevelopmentoftheJ-8,thecountrysfirstsupersonicjetfighter,whichmadeitsfirsttestflightin1969butencounteredseriousproblemsduringflights.Withoutacamera,GugluedknittingwooltotheJ-8srearfuselage(机身)andtailwingtoobservetheirflowduringflightinperson.Togetaclearviewofthewaythewoolwasdisturbed,herequiredtwoplanestoflyjustfivemetersapart,whichwasagreatriskforhimandhispilot.Afterseveralflights,hefinallyfoundandfixedtheproblem.
In1980,hewasinchargeofthedesignofJ-8Ⅱ,whichwasrequiredtoperformatamuchhigherlevelthanpreviousaircraft.Infouryears,GusteamachievedthefirstflightoftheJ-8Ⅱ,layingthecornerstone(基石)forChinassupersonicaircraftdesign.
Gusendlesscuriositydrovehisspiritoflifelonglearning.Hecontinuedhisscientificinquiries,translatedforeignbooks,talkedwithyoungs
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