Unit 1 汽车专业英语(车辆的种类、汽车基本结构).ppt

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1、Specialized English for AutomobileUnit oneAutomobile BasicsContentsI.Pre-questionsII.TextExplanationIII.ExercisesvTypesofModernAutomobilesv1）cars v2）passengercarsv3）trucksv4）tractorsandvehiclecombinationv5）specialtypevehiclev6）Self-dumpingcarv7）farmvehiclev8)off-roadvehicleI.Pre-questionsSpecialvehi

2、clecarTractorTruckPassengerCars2、with respect to engine arrangement and driving type engine arrangement and driving typediagramfront engine、front-wheel drive front engine、rear-wheel driveRear engine、rear-wheel driveI.Pre-questionsvDoyouknowwhobuiltthefirstcarintheworldandwhen?vKarlBenzvIn1886I.Pre-q

3、uestionsvHowmanymainpartsdoestheautomobileconsistof?1-engine 1-engine2-chassis 2-chassis 3-body3-body4-electrical 4-electrical system systemI.Pre-questions New Words and New Words and Expressionsvcomponentkmpunntn.成分，组成，部成分，组成，部件，零件件，零件vchassissin.底盘底盘vtransmissiontrnzminn.变速器，传动变速器，传动,传传动系统，传送，发射动系

4、统，传送，发射vigniteignaitv.点火点火,点燃点燃vsuspensionsspennn.悬架，悬挂悬架，悬挂 New Words and New Words and Expressionsvspark-ignitionengine点燃式发动机点燃式发动机vcompression-ignitionengine压燃式发动机压燃式发动机vstoragebattery蓄电池蓄电池vignitioncoil点火线圈点火线圈vpowertrain传动系，动力装置传动系，动力装置vpropellershaft传动轴传动轴(=driveshaft)vSectionATheBasicComponen

5、tsofanAutomobilevTodaysaveragecarcontainsmorethan15,000separate,individualpartsthatmustworktogether.Thesepartscanbegroupedintofourmajorcategories:engine,body,chassisandelectricalequipments.vEnginevTheengineactsasthepowerunit.Theinternalcombustionengineismostcommon:thisobtainsitspowerbyburningaliquid

6、fuelinsidetheenginecylinder.Therearetwotypesofengine:gasoline(alsocalledaspark-ignitionengine)anddiesel(alsocalledacompression-ignitionengine).Bothenginesarecalledheatengines;theburningfuelgeneratesheatwhichcausesthegasinsidethecylindertoincreaseitspressureandsupplypowertorotateashaftconnectedtothet

7、ransmission.vChassisvThechassisisanassemblyofthosesystemsthatarethemajoroperatingpartsofavehicle.Thechassisincludesthepowertrain,suspension,steering,andbrakesystems.vBodyvAnautomobilebodyisasheetmetalshellwithwindows,doors,ahood,andatrunkdeckbuiltintoit.Itprovidesaprotectivecoveringfortheengine,pass

8、engers,andcargo.Thebodyisdesignedtokeeppassengerssafeandcomfortable.ElectricalEquipmentvTheelectricalsystemsupplieselectricityfortheignition,horn,lights,heater,andstarter.Theelectricitylevelismaintainedbyachargingcircuit.Thiscircuitconsistsofabattery,andanalternator(orgenerator).Thebatterystoreselec

9、tricity.Thealternatorchangestheenginesmechanicalenergyintoelectricalenergyandrechargesthebattery.vWhichiscalledthe“heart”ofautomobile?vAnenginethatisusedtosupplypowerforanautomobilevWhatisthechassiscomposedof?vPowertrain,suspension,steeringsystemandbrakesystem.QuestionsPowertrainsystemBrakesystemSte

10、eringsystemSuspensionsystemI.Pre-questionsvWhatistheelectricalsystemcomposedof?vTheelectricsystemincludesthebattery,generator,startingsystem,ignitionsystem,lightingsystem,hornsystem,radioandotherdevices.I.Pre-questionsvWhatarethefunctionsofthefoursystems?vDrivingsystemworksbytransmittingenginepowert

11、othedrivingwheels.vSuspensionsystemsfunctionistoincreasestrengthanddurabilityofcomponentsandtomeetcustomersrequirementsforridingcomfortanddrivingsafety.vSteeringsystemisusedtocontrolthedrivingdirectionofanautomobile.vBrakesystemisusedtoretardthemotionofthevehicle.I.QuestionsSection C ReadingvAnautom

12、obileormotorcar(usuallyshortenedtojustcar)isawheeledpassengervehiclethatcarriesitsownengineormotor.Mostdefinitionsofitspecifythatautomobilesaredesignedtorunonroads,tohaveseatingforonetoeightpeople,totypicallyhavefourwheels,andtobeconstructedforthetransportofpeopleorgoods.However,thedefinitionisnotpr

13、ecisebecausetherearemanytypesofvehiclesthatdosimilartasks.vInotherwords,anyautomobileiscomposedofthesectionssuchasengine,chassis,bodyandelectricsystem.vInotherwords换句话说换句话说vbecomposedof由由.组成组成v译文：译文：换句话说，任何一辆汽车都是由发动机、换句话说，任何一辆汽车都是由发动机、底盘、车身和电器设备组成的。底盘、车身和电器设备组成的。II.Text ExplanationvInotherwordsvInot

14、herwords,theyremainrelativelyconstantorstatic.换句话说，它们相对的稳定、静止。换句话说，它们相对的稳定、静止。vInotherwords,wehaveadheredtoscientificsocialism.也就是说，我们坚持了科学社会主义。也就是说，我们坚持了科学社会主义。vbecomposedofvNavymustbecomposedofsurfaceshipunitandsubmarineunit.v海军一定是由水面舰艇部队和潜艇部队组成。海军一定是由水面舰艇部队和潜艇部队组成。II.Text Explanation III.Exercise

15、suTranslatethefollowingexpressionsintoChinese.vchassisvdrivingsystemvinternalcombustionenginevsteeringsystemvbrakingsystemvpropellershaftvGeneratorvTransmissionvIgnitioncoilvSuspensionvEnginevComponentvStoragebatteryu底盘底盘u传动系统传动系统u内燃机内燃机u转向系统转向系统u制动系统制动系统u传动轴传动轴u发电机发电机u变速器变速器u点火线圈点火线圈u悬挂悬挂u发动机发动机u零件

16、零件u蓄电池蓄电池vIdentifytheEnglishnamesofchassisaccordingtothepicture.III.Exerciseslengine;clutch(离合器）离合器）;ltransmission;lpropellershaft;ldifferential（差（差速器）速器）;lrearaxle（后轴）（后轴）vI.TranslatethefollowingsentencesintoChinese.vIneffect,thedrivingsystemworksbytransmittingenginepowertothedrivingwheels.v实际上，传动系

17、统的作用是将发动机的动力传递到驱动车轮。实际上，传动系统的作用是将发动机的动力传递到驱动车轮。vTheelectricsystemsupplieslightinganddrivingpowerfortheautomobile.v电气系统可为汽车提供照明和驱动的电力。电气系统可为汽车提供照明和驱动的电力。vThebodystylingprovidesanattractive,colorful,modernappearanceforthevehicle.v车身的式样为汽车提供了诱人的，多彩的，现代的外观形象。车身的式样为汽车提供了诱人的，多彩的，现代的外观形象。III.Exercisesv汽车主要由四个部分组成，他们是：发动机、底盘、车身汽车主要由四个部分组成，他们是：发动机、底盘、车身和电气设备。和电气设备。vAnautomobileisgenerallycomposedoffoursectionssuchasengine,chassis,bodyandelectricalsystem.III.ExercisesII.TranslatethefollowingsentencesintoEnglish.Specialized English for Automobile