Unit 1 汽车专业英语(车辆的种类、汽车基本结构).ppt

UnitoneAutomobileBasics Contents Pre questions II TextExplanation III Exercises TypesofModernAutomobiles1 cars2 passengercars3 trucks4 tractorsandvehiclecombination5 specialtypevehicle6 Self dumpingcar7 farmvehicle8 off roadvehicle Pre questions Specialvehicle car Tractor Truck PassengerCars 2 withrespecttoenginearrangementanddrivingtype Pre questions Doyouknowwhobuiltthefirstcarintheworldandwhen KarlBenzIn1886 Pre questions Howmanymainpartsdoestheautomobileconsistof 1 engine 2 chassis 3 body 4 electricalsystem Pre questions NewWordsandNewWordsandExpressions component k m p un nt n 成分 组成 部件 零件chassis si n 底盘transmission tr nz mi n n 变速器 传动 传动系统 传送 发射ignite ig nait v 点火 点燃suspension s s pen n n 悬架 悬挂 NewWordsandNewWordsandExpressions spark ignitionengine点燃式发动机compression ignitionengine压燃式发动机storagebattery蓄电池ignitioncoil点火线圈powertrain传动系 动力装置propellershaft传动轴 driveshaft SectionATheBasicComponentsofanAutomobileToday saveragecarcontainsmorethan15 000separate individualpartsthatmustworktogether Thesepartscanbegroupedintofourmajorcategories engine body chassisandelectricalequipments EngineTheengineactsasthepowerunit Theinternalcombustionengineismostcommon thisobtainsitspowerbyburningaliquidfuelinsidetheenginecylinder Therearetwotypesofengine gasoline alsocalledaspark ignitionengine anddiesel alsocalledacompression ignitionengine Bothenginesarecalledheatengines theburningfuelgeneratesheatwhichcausesthegasinsidethecylindertoincreaseitspressureandsupplypowertorotateashaftconnectedtothetransmission ChassisThechassisisanassemblyofthosesystemsthatarethemajoroperatingpartsofavehicle Thechassisincludesthepowertrain suspension steering andbrakesystems BodyAnautomobilebodyisasheetmetalshellwithwindows doors ahood andatrunkdeckbuiltintoit Itprovidesaprotectivecoveringfortheengine passengers andcargo Thebodyisdesignedtokeeppassengerssafeandcomfortable ElectricalEquipmentTheelectricalsystemsupplieselectricityfortheignition horn lights heater andstarter Theelectricitylevelismaintainedbyachargingcircuit Thiscircuitconsistsofabattery andanalternator orgenerator Thebatterystoreselectricity Thealternatorchangestheengine smechanicalenergyintoelectricalenergyandrechargesthebattery Whichiscalledthe heart ofautomobile AnenginethatisusedtosupplypowerforanautomobileWhatisthechassiscomposedof Powertrain suspension steeringsystemandbrakesystem Questions Powertrainsystem Brakesystem Steeringsystem Suspensionsystem Pre questions Whatistheelectricalsystemcomposedof Theelectricsystemincludesthebattery generator startingsystem ignitionsystem lightingsystem hornsystem radioandotherdevices Pre questions Whatarethefunctionsofthefoursystems Drivingsystemworksbytransmittingenginepowertothedrivingwheels Suspensionsystem sfunctionistoincreasestrengthanddurabilityofcomponentsandtomeetcustomers requirementsforridingcomfortanddrivingsafety Steeringsystemisusedtocontrolthedrivingdirectionofanautomobile Brakesystemisusedtoretardthemotionofthevehicle Questions SectionCReading Anautomobileormotorcar usuallyshortenedtojustcar isawheeledpassengervehiclethatcarriesitsownengineormotor Mostdefinitionsofitspecifythatautomobilesaredesignedtorunonroads tohaveseatingforonetoeightpeople totypicallyhavefourwheels andtobeconstructedforthetransportofpeopleorgoods However thedefinitionisnotprecisebecausetherearemanytypesofvehiclesthatdosimilartasks Inotherwords anyautomobileiscomposedofthesectionssuchasengine chassis bodyandelectricsystem Inotherwords换句话说becomposedof由 组成译文 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 II TextExplanation InotherwordsInotherwords theyremainrelativelyconstantorstatic 换句话说 它们相对的稳定 静止 Inotherwords wehaveadheredtoscientificsocialism 也就是说 我们坚持了科学社会主义 becomposedofNavymustbecomposedofsurfaceshipunitandsubmarineunit 海军一定是由水面舰艇部队和潜艇部队组成 II TextExplanation III Exercises TranslatethefollowingexpressionsintoChinese chassisdrivingsysteminternalcombustionenginesteeringsystembrakingsystempropellershaftGeneratorTransmissionIgnitioncoilSuspensionEngineComponentStoragebattery 底盘传动系统内燃机转向系统制动系统传动轴发电机变速器点火线圈悬挂发动机零件蓄电池 IdentifytheEnglishnamesofchassisaccordingtothepicture III Exercises engine clutch 离合器 transmission propellershaft differential 差速器 rearaxle 后轴 I TranslatethefollowingsentencesintoChinese Ineffect thedrivingsystemworksbytransmittingenginepowertothedrivingwheels 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 Theelectricsystemsupplieslightinganddrivingpowerfortheautomobile 电气系统可为汽车提供照明和驱动的电力 Thebodystylingprovidesanattractive colorful modernappearancefortheve