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ID:46638147
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页数:8页
时间:2019-11-26
《全新版大学进阶英语综合教程第二册答案U5 Key to Exercises》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Unit5PioneersofFlightKeytoExercisesOpenerAMightyAirplaneBuiltbyHowardHughesin1947LengthItwas220feetlong.HeightItwashigherthanafive-storybuilding.WeightItweighedabout60tons.TripIthadtomakethetripfromCulvercityinCaliforniatothePacific,whichis30milesaway
2、.Reading&InteractingI.UnderstandingtheText1.TextOrganizationStoryTheheroWhenithappenedHowitrelatestomodernaviation1WanHuA.D.1500WanHu’scrazydreamcontainstheprinciplesofrocket-poweredspaceflight.2HowardHughesOnNovember2,1947Manyofthedesignfeaturesofthe
3、SpruceGoosehavebeenincorporatedintomoderncargoplanes.3LeonardodaVinciAbout500yearsagoTheflyingdeviceswithflappingwingscontrolledandsteeredbyhumanpilotshedesignedstillinspirepeopletopursuetheirdreamsofflyingfreelyinthesky.2.ComprehensionCheck2.1Focusin
4、gonthemainideasThearticleconsistsofthreestoriesaboutpioneersofflight.ThefirststoryisaboutaChinesenamedWanHu,whomadeanunsuccessfulattemptatspaceflightinA.D.1500.Hebuiltaspaceshippoweredby47rocketsusinggunpowder.Hisideawascrazy,buthisdreamofflightcametr
5、ue500yearslaterwhenChinasuccessfullylauncheditsfirstmannedShenzhouVspaceship.ThesecondoneisabouttheSpruceGoose,aflyingboatdesignedtomeettheneedoftransportingtroopsandmaterialsduringWorldWarII.Itwasmadeentirelyofwoodandstillholdstherecordforthegreatest
6、wingspan.Althoughitwasneverputtouse,manyofitsdesignfeatureshavebeenincorporatedintotoday’scargoplanes.ThelastisaboutLeonardodaVinci,themostfamousartistoftheRenaissance.Apartfromhisgreatartisticwork,healsodrewsketchesofflyingdeviceswithflappingwingscon
7、trolledandsteeredbyhumanpilots.Fivehundredyearslater,aprofessionalparachutistmadeasuccessfuljumpusingawoodandcanvasparachutebasedononeofdaVinci’sdesigns/sketches.2.2Diggingintodetail1.Becauseitwaspoweredbyrockets.2.Itwasthebiggestairplaneeverbuiltupto
8、thattime,andstillholdstherecordforthegreatestwingspan.Besides,itwasmadeentirelyofwood.3.No,becauseitwasbehindscheduleandwasnotcompleteduntilwellafterthewar.4.DaVinci’sflyingmachineshavewingsthatflaplikebirdsinflight.5.Becauseitisdifficultforor
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