汽车实用英语 Practical automobile english Unit one Structure of Automobile
1、Presentation 2、Read the text for ten minutes: (1) The key words; (2) The main component of the auto; (3) The main point of the text;
3、Key Word and Expressions chassis底盘 valve阀，气门 ignition点火 lubricate润滑，加润滑油 assemble装配，集合 transmission变速器 suspension悬挂 steer驾驶 brake刹车 clutch 离合器，抓住 gearbox 变速箱
differential差速器 capacity 容量，能力 coil 盘绕n. torsion 扭转，转矩 knuckle 转向节 momentum 动力，要素，动量 kinetic 动的，动力学的 retard 使减速，阻止 shelter掩蔽，掩蔽处 hood 车篷，引擎盖 fender防护物，挡泥板 bumper 汽车保险杆，缓冲器 surge 电泳，澎湃
internal combustion engine 内燃发动机 final drive 主减速器 gear sector 扇形齿轮 pitman arm 转向摇臂 drag link 直拉杆，转向 steering knuckle arm 转向臂节 king pin 主销 tie rod 转向横拉杆 kinetic energy 动能 brake lining 制动器摩擦衬片 combustion chamber 燃烧室 torsion bar 扭力轴
4、text analysis The automobile is composed of four sections such as engine, chassis, body and electrical system. chassis engine
Qu.2 : How to classify the auto engine? Number of cylinders; Arrangement of cylinders; Arrangement of valves; Type of cooling; Number of cycles; Type of fuel burned; Type of ignition. Qu.3 :What is the function of the engine? The engine is the source of power that makes the wheels go around and the car move.
Qu.4 : What are the main part of an engine? fuel 燃料 lubricating 润滑 cooling 制冷 ignition 点火 starting systems 起动系统
Qu.5 :What is the function of the chassis ? The chassis is a framework used to assemble auto components on it. chassis
Qu.6 :What are the main part of the chassis? Transmission system Suspension system Steering system Brake system 自动挡液体传动系统 Transmission system
Qu.7 :What is the function of the automobile body? The automobile body serves the obvious purpose of providing shelter, comfort and protection for the occupants. body
Qu.9 :What are the main part of the automobile body? the front the rear the top the underbody the hood the fenders the roof panels the door the instrument panel the bumpers the luggage compartment automobile body
The function of the electric system. The electric system supplies lighting and driving power for the automobile. It cranks the engine for staring. The main part of the electric system. The electric system includes the battery, generator, starting system, ignition system, lighting system, horn system, radio and other devices.
5、Sentence and grammatical analysis e.g. The chassis is a frameworkused to assemble auto components on it. 1、主句：主语 +be动词+宾语 The chassis + is + a framework 2、过去分词引导不定式做定语 used to 3、时态为一般现在时 is 4、翻译：底盘是一个集装汽车部件的框架。
e.g. It isalready over one hundred years since the first automobile was inventedin the word. 1、主句：主语 + 不完全动词+补语 It + is+ already over one hundred years 2、介词since 引导时间状语从句 从句 ：主语 + 不及物动词 the first automobile + was invented 3、介词in引导地点状语： in the word 4、使用被动语态： was invented 5、时态： It is； was invented 6、翻译：世界上第一台车诞生已经有一百多年了。
e.g. From then on, the transportationon landshifted from the age of coaches to the age of automobiles. 1、主句：主语 + 不及物动词 the transportation +shifted 2、介词引导状语从句 on……;from…… 3、of 表示同位关系，表述明确、严谨 the age of coaches；the age of automobiles 4、独立结构不构成句子成分 From then on 5、翻译: 从那时起，人类的交通从马车时代进入汽车时代。
5、Practice (1) Choose the correct word to match the sentence. chassis; crankshaft; lubricating; friction; ignition; ①to put oil into the moving parts of a machine to make them work more easily. ②a rod turning, or driven by a crank. ③the rubbing of one against another. ④the framework on which the body and working parts of a vehicle are fastened. ⑤starting an engine by electrically firing the gases from the petrol. lubricating crankshaft friction chassis ignition
suspension; combustion; cylinder; transmission; axle; ①a long round hollow on solid body. ②a bar with a wheel on either end. ③the act of catching fire and burning. ④the pieces of apparatus fixed to the wheels of a car to lessen the effects of rough road surfaces. ⑤the parts by which power is carried from an engine to the wheels that produce movement in a vehicle. cylinder axle combustion suspension transmission
② ③ ① ⑦ ⑥ ④ ⑤ (2)Lbel the picture correctly using the words blew chassis; body; steering system; transmission system; tailpipe; engine; road wheel.
6、Layout of English letter & E-mail Private Letter 1、Sender’ address Date 2、Salutation 3、Body . 4、Complimentary Close 5、Signature 6、Encl 7、P.S.:
Homework: Write a private latter to the automobile manager. Ask him about the price, feature and property of the car you are interested in.