skid [sk?d] n. 刹车
emergency [i'm?:d??nsi] n. 紧急情况，突发事件 slippery ['slip?ri] adj. 滑的
uneven [?n'i:v?n] adj. 1.不平坦的；不规则的
2.不一致的；有差异的
terrain [te'rein] n. 地形，地面，地域，地带 lever ['li:v?] n. 1.〈物〉杠杆
2. 操作杆 pedal ['pedl] n. (自行车或其他机器的)踏板 tie-rod n. 拉杠；转向拉杆
corresponding ['k?ris'p?ndi?] adj. 1.相当的，对应的，相应的 2.符合，一致的 column ['k?l?m] n. 1.柱，圆柱
2.圆柱状物；柱形物
horizontal ['h?ri'z?nt?l] adj. 水平的，与地平线平行的，横的 spring n. 1.弹簧，发条
2.弹回，反弹
undercarriage ['?nd?'k?rid?] n. 起落架，车盘，着陆装置 bump [b?mp] n. 1.碰撞，猛撞
2.肿块 3.隆起物
vibration [va?'bre???n] n. 震动； 摆动；摇摆 strut [str?t] n. 支柱，压杆
absorber [?b's?:b?] n. 吸收者，吸收体，减震器 dampen ['d?mp?n] vt. 抑制，控制，（感情、反应等） bounce [bauns] n. 1.弹跳；跳动
2.弹性；反弹力
telescoping adj. 可伸缩的
adjustment [?'d??stm?nt] n. 1.调整，调节
2.调节器
sensor ['sens?] n. 传感器，敏感元件，探测设备 compensate ['k?mpenseit] vt. & vi. 补偿，弥补 dip n. 1.倾斜，凹陷处
2.减少，下降，衰退
acceleration [?k'sel?'re???n] n. 加速度
drivetrain ['draivtrein] n. 动力传动系统 aluminum [?'lu:m?n?m] n. <美>铝 absorbent [?b's?:b?nt] adj. 能吸收的
n. 吸收剂
traction ['tr?k??n] n. 拖，拉，牵引
treads [tred] n. 轮胎接触地面的部分，胎面 varieties [v?'rai?ti] n. 1.品种，种类
2.变化，多样化
Technical Terms pressed-steel frame 压制钢件结构 tyre tread 轮胎面 axle assemblies 轮轴集合 steering column 驾驶杆 steering mechanism 转向装置 cylinder head 气缸盖 driving dynamics 驱动自动完成 engine block 发电机组
anti-lock braking system (ABS) 防抱死制动系统
Phrases and Expressions be considered as 被认为/看作是……
build into 内含在，构建在……中 by means of (由)以……方式；通过 move up and down 上下移动
smooth out 1. 弄平，消除
2. 缓和，调解
provide with 提供
Notes to Reading A 1. A large number of designs in a pressed-steel frame form a skeleton on which the engine, wheels, axle assemblies, transmission, steering mechanism, brakes and suspension members are mounted.
压制钢件结构中的许多设计部分形成一个框架，发动机、车轮、轮轴集合、变速器、转向装置、刹车、悬挂系统都安装在这个框架上。
2. A vehicle?s chassis system is a determining factor when it comes to handling characteristics, influencing vehicle driving dynamics, comfort, safety, and road holding ability.
车辆的底盘在控制车辆性能方面起着决定性作用，会影响到车辆驱动自动完成、舒适度、安全程度和路面之间的粘合力。
3. An anti-lock braking system (ABS) uses a computer, sensors, and a hydraulic pump to stop the automobile?s forward motion without locking the wheels and putting the vehicle into a skid.
防抱死制动系统利用计算机、传感器和液压泵防止车辆向前运动，既不用锁车轮，也不用刹车。
4. Depending on the steering mechanism, gears or other devices convert the rotating motion of the steering wheel into a horizontal force that turns the wheels.
依靠转向装置，齿轮或者其他装置可以把方向盘的旋转力转换成旋转车轮的水平动力。
5. Shock absorbers control, or dampen, the sudden loading and unloading of suspension springs to reduce wheel bounce and the shock transferred from the road wheels to the body.
减震器控制或者减小悬簧的突然载荷和卸荷，减轻车轮反弹力和由车轮传送到车身的冲击力。
Task 2 Reading Comprehension Ⅰ. Answer the following questions according to the text.
1. Which part of the suspension system plays a very important role? 2. How do most steering systems link the front wheels together? 3. What is the basic principle of the transmission?
4. What are automobiles usually equipped with in order to park a car securely?
5. What role do wheels play? Ⅱ. Decide whether the following statements are true (T) or false (F)
according to Reading B.
( ) 1. The chassis performs several functions in the working of an automobile. ( ) 2. The main types of the chassis are manual, automatic, and continuously variable.
( ) 3. The suspension system is equipped with axles to absorb shocks.
( ) 4. A basic transmission system of a vehicle consists of various components such as gears, shafts and other parts.
( ) 5. The braking system is used for slowing or stopping down a vehicle.
Task 3 Vocabulary Exercises Ⅰ. Match the following expressions with their Chinese meanings. A. compensate for the dips and dives ( ) 嵌入设计
B. absorb bumps and vibrations ( ) 减轻倾斜和猛冲的程度 C. telescoping design ( ) 变速齿轮的组合
D. combinations of transmission gears ( ) 转向装置的旋转动力 E. alter the rotational speed and torque ( ) 吸收冲顶和震动 F. rotating motion of the steering ( ) 改变旋转速度和扭矩 Ⅱ.Complete the sentences with the words and phrases given below. Change their forms if necessary. absorb foot pedal suspension traction mount structure transfer frame maintain gear
1. The chassis is considered to be one of the significant _________ of an automobile.
2. The _________ helps to keep a car?s wheels in firm contact with the road. 3. It is necessary to __________ your car regularly.
4. The power train ___________ power from the engine to the car wheels so that the car moves.
5. When chassis vibration occurs, the suspension __________ the shocks. 6. It is difficult to change __________ when a driver is driving.
7. Some cars have been built with the engine _________ at the rear, in back of the rear seat.
8. It is not easy to move the car while the rear axle is in ________.
Section C Practical Writing
Task 1 Please read and understand the following sample invitations.
Sample 1: Invitation Card
Dear Mr. and Mrs. Smith, This is to advise that we are going to hold an International Auto Fair in Jinan from June 1st to June 15th, 2010. A great variety of samples, newly designed by our manufacturers, will be on exhibition. We take pleasure in inviting you to come to the Fair. Please fax the date of your arrival, enabling us to make the necessary preparations. Yours faithfully, Notes on the sample invitations Chen Ming Invitation The Chairman of Requests Audi Automobile Company The honor of your presence At the opening ceremony On Friday morning, the fifth of July From nine to eleven o’clock 2851 Pudong Avenue Shanghai Sample 2: Invitation Letter