一、选择题1、The four-stroke cycle operates in which order __C__.A. intake, exhaust, power, compressionB. intake, power, compression, exhaustC. intake, compression, power, exhaust2、With the piston at the bottom of the cylinder, the ___C____ valve ___________ to allow the burned exhaust gas to be expelled to the exhaust system.A.intake, closesB. exhaust, closesC. exhaust, opens3、A car engine's job is to ___B__A. Convert fuel into heatB. Convert fuel into motionC. Convert fuel into exhaust4、When the crankshaft completes four revolutions for a four-cycle engine, each cylinder will have gone through ____B____intake stroke(s).A.oneB. twoC. Three5、___C___ is the life-blood of the engine.A. gasB. waterC. Oil6、What is the core of a car's engine___C___A.The spark plugB. exhaustC. The cylinder7、What determines the size and the placement of the engine block____C____A. The number of spark plugsB. The number of pistonsC. The number of cylinders8、In the standard engine, each cylinder has ___A___.A.four valvesB. two valvesC. one valve9、A crankshaft's job in an engine is to ___C___A. Deliver fuel to the cylindersB. Keep cylinder heads in placeC. Change linear motion into rotational motion10、The _____C___ system on an internal combustion engine provides the spark that ignites the combustible air/fuel mixture in the combustion chamber.A.startingB. fuelC. igniting二、填空题1.Today’s average car contains more than 15000 separate, individual parts that must work together. These parts can be grouped into four major categories: body，engine，chassis and electrical system .2.The direction motion of vehicle is controlled by a steering system. A basic steering system has 3 main parts: steering control mechanism ，steering gear and steering linkage mechanism which connecting wheels and steering gear .3.The location of the driving axle determines whether the vehicle is classified as rear-wheel?drive ，front-wheel?drive ，four-wheel?drive and all-wheel drive.4.The modern clutch9 is a single plate, dry disc . It consists of five major parts: flywheel, clutch disc , pressure plate assembly, throw-out bearing , and clutch linkage.5.There are two types of universal joints-- cross type joint and constant velocity universal joint .6.The three types of braking systems are in use today: service braking system , parking braking system and additional retarding-braking system .7.On today’s cars, two types of steering systems commonly are used to provide steering control: manual steering systems and power steering systems .8.A braking system consists of an energy---- supplying device , a control device , a transmission device and the brake.三、将缩写写出英文全称、中文意思。

1、CVT：Continuously Variable Transmission 中译：无级变速器2、EFI：Electronic Fuel Injection 中译：电子燃油喷射3、TPS：Throttle Position Sensor 中译：节气门位置传感器4、ABS：Anti-lock Braking System 中译：防抱死制动系统5、CAN：Controller Area Network 中译：控制器区域网络6、EGR：Exhaust-gas recirculation 中译：废气再循环7、EPS：Electronic Power Steering 中译：电动助力转向系统8、MAF：Mass Air Flow 中译：空气流量计9、ASR：Acceleration Slip Regulation 中译：驱动（轮）防滑系统10、CACS：Comprehensive Automobile Control System 中译：汽车综合控制系统四、翻译Translate the following sentences into Chinese。

1. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine: gasoline and diesel .Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the power train .内燃机是最常见的，其动力来自气缸里液体燃料的燃烧。

发动机有汽油机和柴油机两种，都称为热机。

燃料燃烧产生热量，气缸内气体压力升高，从而提供动力，带动连接传动系的轴旋转。

2. The engine acts as the power unit. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine: gasoline (also called a spark-ignition engine) and diesel (also called a compression-ignition engine). Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the power train.发动机作为动力设备，常见的类型是内燃机，其原理是通过发动机缸内的液体燃料燃烧而产生能量。

发动机可分为两类：汽油机（点燃式）和柴油机（压燃式），都属于热力发动机。

燃料燃烧产生热量使缸内气压上升，产生的能量驱动轴旋转，并传递给动力传动系。

3.The basic steering system in most cars is the same. The steering gear of steering box is the heart of the steering system. This usually is next to the engine. A shaft extends from the back of the steering gear. This shaft is connected to the steering column or steering shaft. The steering wheel is at the top of the steering column. Another shaft comes from the bottom of the steering gear. This shaft connects to thearms, rods, and links. This parts assembly, called the steering linkage, connects the steering gear to the parts at the wheels. The wheels and tires mount to the steering knuckles. The knuckles are pivoted at the top and bottom. Thus, the wheels and tires can turn from side to side.在大多数汽车转向系统基本是相同的。