10级汽车专业英语试卷A

第1页共8页湖北科技职业学院10级汽车英语期末考试————————————————————————————————————一、单词互译(每空1分，共20分)SectionADirections:Thissectionistotesthowmanywordsyouknow.Pleasetranslateenglishintochinese.(1*10)1.Vehiclebody2.brakesystem3.steeringsystem4.dashboard5.camshaft6.AutomaticTransmission7.inletvalve8.timingbelt9.cylinder10.electroniccontrollerSectionBDirections:Thissectionistotesthowmanywordsyouknow.Pleasetranslatechineseintoenglish.(1*10)1.底盘2后悬架3．转向盘4发动机5分电器6油底壳7活塞8轴承9手动变速器10冷却系统二、阅读与理解（20题，每题2分，共40分）Part1Theengineisthesourceofpowerthatmakesthewheelsgoaroundandthecarmove.Theautomobileengineisaninternalcombustionenginebecausethefuel(gasoline)isburnedinsideit.Theburningofgasolineinsidetheengineproduceshighpressureintheenginecombustionchamber.Thishighpressureforcespistontomove,themovementiscarriedbyconnectingrodstotheenginecrankshaft.Thecrankshaftisthusmadetorotate:therotarymotioniscarriedthroughthepowertraintothecarwheelssothattheyrotateandthecarmoves.1.Whatdoweseefromthefirstparagraphs?()A.Theengineissourceofpowerforacar.B.Theenginecannotmakewheelsgoaround.C.Theengineisresourceofoil.2.WhichoneStatementistrueaccordingtheabovefirstparagraph?()A.Theautomobileengineisaninternationalcombustionengine.B.Theautomobileengineisanexternalcombustionengine.第2页共8页C.Theautomobileengineisaninnercombustionengine3.Whatdoweseefromthesecondparagraphs?()A.Highpressureissourceofpowerinsideaengine.B.Crankshaftisrotatedwithoutanyforce.C.Combustionchamberisnotapartoftheengine.4.WhichoneStatementistrueaccordingtheabovesecondparagraph?()A.Themovementofpistoniscarriedbyconnectingrodstotheenginecrankshaft.B..Thislowerpressureforcespistontomove.C.BothofAandBaretrue.5.WhichoneStatementistrueaccordingthelastsentenceinthearticle?()A.Thepowertrainisrequiredforacarmoving.B.Therotarymotionofcrankshaftisenoughforacarmoving.C.BothAandBarefalse.Part2Theenginealsoneedsacoolingsystem;thecombustionoftheair-fuel.Themixtureintheenginecreatesaveryhightemperature(ashighas2000℃to2700℃).Thecoolingsystemtakesheatawayfromtheenginebycirculatingaliquidcoolant(watermixwithantifreeze)betweentheengineandaradiator.Thecoolantgetshotasitgoesthroughtheradiator.Thus,thecoolantcontinuallytakesheatawayfromtheengine,whereitcoulddodamage,anddeliversittotheradiator.Airpassingthroughtheradiatortakesheatawayfromtheradiator.6.Whatdoweseefromaboveparagraph?()A.acoolingsystemismustfortheengine.B.Theenginedon’tneedacoolingsystemC.Theenginemightneedacoolingsystem.7.Howmuchwillbecreatedthetemperatureofthemixtureintheengine?()A.Ashighas2000℃to2700℃.B.Ashighas1300℃to2000℃.C.Nothigherthan2000℃.8.Whatisliquidcoolant?()A.watermixwithantifreezeB.waterusedbythecoolingsystem.C.Anyliquidusedbythecoolingsystem.9.Whatdoweseefromaboveparagraph?()第3页共8页A.ThecoolantgetsHOTasitgoesthroughtheradiatorB.ThecoolantgetsCOOLasitgoesthroughtheradiatorC.BothAandBarefalse.10.WhichoneStatementistrueinthearticle?()A.Airpassingthroughtheradiatortakesheatawayfromtheradiator.B.AirpassingthroughtheradiatorgetsMOREheat.C.BothAandBarefalse.Part3Powerstroke:AsthepistonreachesTDConthecompressionstroke,anelectricsparkisproducedatthesparkplug.Theignitionsystemdeliversahigh-voltagesurgeofelectricitytothesparkplugtoproducethespark.Thesparkignites,orsetsfireto,theair-fuelmixture.Itnowbeingstoburnveryrapidly,andthecylinderpressureincreasestoasmuchas3-5Mpaorevenmore.Thisterrificpushagainstthepistonforcesitdownward,andapowerimpulseistransmittedthroughtheconnectingrodtothecrankpinonthecrankshaft.Thecrankshaftisrotatedasthepistonispusheddownbythepressureaboveit.11.Whichtopicisfitwiththeparagraph?()A.PowerstrokeB.Compressionstroke.C.Exhauststroke.12.WhichoneStatementisTUREaccordingthearticle?()A.Theterrificpushagainstthepistonforcesitdownward.B.Theslightpushagainstthepistonforcesitdownward.C.Thislittlepushagainstthepistonforcesitdownward.13.Whichwordorphrasecanchangetheword“ignites”?()A.setsfiretoB.shootsatC.charges14.WhichoneStatementisTUREaccordingthearticle?()A.Theignitionsystemdeliversahigh-voltagesurgeofelectricitytothesparkplugtobeginthespark.B.Theignitionsystemdeliversalow-voltagesurgeofelectricitytothesparkplugtodefendthespark.C.Theignitionsystemdeliversaconstant-voltagesurgeofelectricitytothesparkplugtoproducethespark.第4页共8页15.Whentheair-fuelmixturebeingstoburnveryrapidly,howmuchdoesthecylinderpressureincreaseto?()A.Asmuchas3-5Mpaorevenmore.B.Asmuchas3-5barorevenmore.C.About3-5Kpa.Part4Theactionstakingplaceintheenginecylindercanbedividedintofourstages,orstroke.“Stroke”referstopistonmovement;astrokeoccurswhenthepistonmovesfromonelimitingpositiontotheother.TheupperlimitofpistonmovementiscalledTDC(topdeadcenter).ThelowerlimitofpistonmovementiscalledBDC(bottomdeadcenter).AstrokeispistonmovementfromTDCtoBDCorfromBDCtoTDC.Inotherwords,thepistoncompletesastrokeeachtimeitchangesitsdirectionofmotion.Wheretheentirecycleofeventsinthecylinderrequiresfourstrokes(ortwocrankshaftrevolutions),theenginesiscalledafour-stroke-cycleengine,orafour-cycleengine.Thefourpistonstrokesareintake,compression,power,andexhaust.16.Whatdoweseefromtheparagraphs?()A.Whatis