机务英语第四册口语.docx
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机务英语第四册口语.docx
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机务英语第四册口语
CONTENT
LessonOneAirConditioningP.103
LessonTwoAutoFlightP.107
LessonThreeAirSourceP.1111
LessonFourCommunicationP.115
LessonFiveAPUP.119
LessonSixFireProtectionP.123
LessonSevenEngineIgnitionP.127
LessonEightOilP.131
LessonNineFlightControlP.135
LessonTenCentreMaintenanceSystemP.138
LessonElevenAirConditioningLayOutP.144
LessonTwelveNavigationP.149
LessonThirteenAutoFlightP.153
LessonFourteenHydraulicSystemP.158
LessonFifteenElectricalPowerP.163
LessonSixteenNavigationP.167
LessonSeventeenFuelP.171
LessonEighteenCentreMaintenanceSystemP.177
LessonNineteenOilP.181
LessonTwentyFlightControlP.184
LessonOne
AirconditioningSystem
Partone:
Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.
Theairconditioningsystemsuppliespressurizationtothewholepassengercompartment,thecockpit,allthecargocompartmentsandtheavioniccompartment.
Thereareareasinthefuselagethatarenotpressurizedandtheyareseparatedbypressurebulkheads.
Areasthatarenotpressurizedarethelandinggearbays,theradomeandthetailcone.
Exercises:
1
QuestionstotheText:
1.Whereispressurizedbytheairconditioningsystem?
2.Arethereanyun-pressurizedareas?
Whatarethey?
3.Radomeispressurized,isn’tit?
Exercises2:
DescribeFig.1withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.
Fig.1
Fig.1Airconditioningsystem
PartTwo:
Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.
Electricityismainlyusedforelectricalheating,forlighting,toproducemechanicalpower,andlastbutnotleasttosupplyalltheelectronicdevices.
Electricalpowerforheatingismainlyusedinthegalleysforovensandcoffeemachines.Itisalsousedinantiicesystemstopreventicingofairdataprobes,watersystemsandcockpitwindows.
Lightingequipmentismainlyusedinthecockpittoprovidesufficientgeneralbrightnessandtoilluminatetheworkingareaslikepanelsandmapsandinthecabinforpassengercomfortandsafetyandoutsidetheaircrafttomaketheaircraftvisibleforotheraircraftandtoilluminatethegroundduringtakeoffandlanding.
Mechanicalpowerisproducedbyelectricmotors,whicharemainlyusedtodrivepumps,forexample,fuelandhydraulicpumpsortodriveavalvetothecommandedpositioninthefuel,hydraulicorairconditioningsystemortomovemechanicalpartslikedoorsandcargocontainers.
Electronicdevicesthatareusedinnearlyallaircraftsystemsarethecomputersforsystemcontrolandmonitoringandthecontrolinputsandindicationsinthecockpitandsensorsthroughoutthewholeaircraft.
Exercise1:
QuestionstotheText:
1.Whatiselectricalpowerusedfor?
2.Wheredoestheheatingforovenandcoffeemachinescomefrom?
3.Whatislightingequipmentusedfor?
4.Arethereanylightingequipmentoutsidetheaircraft?
5.Whatarethepurposeforthelightsoutsidetheaircraft?
6.Howisthevalvecontrolled?
7.Electronicdevicesareusedtocontrolvarioussystems,aren’tthey?
Exercises2:
DescribeFig.2withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.
Fig.2ElectricalPower
LessonTwo
AutoFlight
PartOne:
Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.
Theaircrafthasthreeaxes.Theyarecalled:
---thelongitudinalorx--axis
---andthelateralory—axis
---theverticalorz--axis
TheAutopilotcontrolstheaircraftattitudedirectlyaround2axes,byelevatordeflectionsfromthepitchchannelandailerondeflectionsfromtherollchannel.
AutolandAutopilotscanalsocontroltheaircraftattitudedirectlyaroundtheverticalaxisbyrudderdeflectionsfromtheyawchannel.
TheYawdampercontrolstheruddertodampendutchrolloscillations(swings)duringtheentireflight.
Thepitchtrimsystemmovesthehorizontalstabilizer,tocompensateforchangesinthecenterofgravityandcenterofliftduringflight.
Autothrottleistheonlysystemthatcancontrolanaircraftmotionalonganaxis,
calledatranslatorymotion.Itgeneratesaccelerationsinthex--axisbycontrollingtheenginethrust.
Exercise1:
QuestionstotheText:
1.Howmanyaxesdoesanaircraftmovealong?
2.WhatisthefunctionoftheYawDamper?
3.WhatisthefunctionofthePitchtrim?
4.Howdoesanaircraftaccelerate?
5.Howisverticalmovementofanaircraftachieved?
Exercise2:
DescribeFig.3withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.
Fig.3AxesofAnAircraft
Fig.3PitchYawandRoll
PartTwo:
Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.
Allmodernaircraftareequippedwithautoflightsystems.
Typically,anautoflightsystemhasthefollowingsubsystems:
--theAutopilot,orAPinshort
--theFlightDirector,orFD飞行指引
--theAutothrottleSystem,usuallyabbreviatedasATS
--theAutomaticPitchTrimSystem,alsocalledAutotrim
--andtheYawDamperSystem,orYD
TheFlightDirectorshowsthepilothowtoflytheaircraftmanually.ThisisdonebyFlightDirectorCommandbarsinthePrimaryFlightDisplay--PFDorAttitudeDirectorIndicator--ADI.
TheAutothrottleSystemreducestheworkloadforthepilotsbycontrollingtheenginepowerautomatically.
Autotrimmaintainspitchstabilityduringallphasesoftheflight.Itusuallyadjuststhehorizontalstabilizerautomatically.
TheYawDamperimprovesthedynamicstabilityoftheaircraftduringthewholeflight.
TheFMSdoesnavigationandperformancecalculationsforoptimumflightperformance.
Exercise1:
Questionstothetext:
1.Howmanysubsystemsdoesautoflightconsistof?
2.Whatdoesflightdirectorshow?
3.WhatisthefunctionofAutothrottle?
4.Whatisautotrimusedfor?
5.Whichsubsystemcanimprovetheaircraftdynamicstability?
6.whatdoesFMCstandfor?
Exercise2:
DescribeFig.4withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.
Fig.4AutoflightSystem
LessonThree
AirSource
Partone:
Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.
Onaircraftpneumaticenergyisusedforenginestarting,cabinpressurizationandairconditioning,winganti--icing,waterreservoirpressurizationandhydraulicreservoirpressurizationonsomeaircraft.
Youmayfindothersystemsandcomponentsthatalsoworkpneumatically,forinstance,air--drivenpumpsforhydraulicsorairmotorsusedforslatoperation.Inanypneumaticsystems,airpressureandtemperatureneedtobeasconstant
aspossibletosupportthedifferentconsumerseffectively.
Exercise1:
Questionstothetext:
1.Whatisthefunctionofaircraftpneumaticsystem?
2.whyconstantairpressureandtemperatureareneeded?
3.Doesair-drivenworkpneumaticallyorhydraulically?
4.Airmotorsareusedforhydraulicsystemoperation,aren’tthey?
Exercise2:
DescribeFig.5withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.
Fig.5PneumaticSystem
PartTwo:
Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.
Amodularengineconstructionisusedonallmodernaircraft.Thewholeengineissplitupintoasetofseparatemajormodules.Theseenginemodulesarepre--assembledandbalanced.Theyarespeciallydesignedtoberemovedandreplacedmoreeasily.Themodulesremainintactafterremovalanddonotfalltopieces.
Themajorenginemodulesarefurtherdividedintoindividualmodules.Thenumberofmodulesdependsonthemanufacturerandontheenginetype.
Exercise1:
Questionstothetext:
1.Whyareenginesaredesignedintoasetofseparatemodules?
2.Whatwouldbelikeifengineisdisassembled?
3.Cantheenginemodulebefurtherdivided?
4.Howmanymodulesdoesanenginecontain?
Exercise2:
DescribeFig.6withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.
Fig.6.EngineConstruction
LessonFour
Communication
Partone:
Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.
Forcommunicationinaircraftweneedtwogeneralcomponentsfornearlyallsystems:
Microphonestransfertheacousticinformationintoanelectricalsignal.Loudspeakerstransfertheelectricalsignalbackintoacousticalinformation.Differenttypesofmicrophoneareusedinthecockpit.Anareamicrophone,whichisusuallyinstalledontheceilingpanel,isusedbythevoicerecordertorecordthegeneralcockpitsounds;ahand—heldmicrophoneisusedforannouncementstothepassengers;andintegratedmicrophonesarecontainedintheoxygenmaskortheheadset.Thesearecalledtheboomset.
Exercise1:
Questionstothetext:
1.Whatmakesitpossibleforthecommunicationinaircraft?
2.Whatisthefunctionofamicrophone?
3.Whichcomponenttransfertheelectricalsignalintoacousticalinformation?
4.Howmanytypesofmicrophoneareusedinthecockpit?
5.Whattypeofmicrophonedoesthevoicerecorderuse?
6.Whereisthevoicerecordermicrophonelocated?
Exercise2:
DescribeFig.7withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.
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