2012－2013学年第一学期物理与机电工程学院《专业英语》期末考试试卷（A卷）年级＿＿＿专业＿＿＿班级＿＿学号＿＿＿＿姓名＿＿＿＿＿注：1、共120分钟，总分100分。

一、单项选择题，在每小题列出的三个选项中有一个选项是符合题目要求的，请将正确选项前的字母填在题号对应的表格内。

（每题2分，共20分）1、The four-stroke cycle operates in which order ___________.A. intake, exhaust, power, compressionB. intake, power, compression, exhaustC. intake, compression, power, exhaust2、With the piston at the bottom of the cylinder, the ___________ valve___________ to allow the burned exhaust gas to be expelled to theexhaust system.A. intake, closesB. exhaust, closesC. exhaust, opens3、A car engine's job is to ________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 ___________intake stroke(s).A. oneB. twoC. three5、___________ is the life-blood of the engine.A. gasB. waterC. oil6、What is the core of a car's engine________A. The spark plugB. exhaustC. The cylinder7、What determines the size and the placement of the engine block?A. The number of spark plugsB. The number of pistonsC. The number of cylinders8、In the standard engine, each cylinder has ___________.A. four valvesB. two valvesC. one valve9、A crankshaft's job in an engine is to ______A. Deliver fuel to the cylindersB. Keep cylinder heads in placeC. Change linear motion into rotational motion10、The___________ system on an internal combustion engine providesthe spark that ignites the combustible air/fuel mixture in the combustion chamber.A. startingB. fuelC. igniting1.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，and .2.The direction motion of vehicle is controlled by a steering system. A basic steering system has 3 main parts: ，and .3. The location of the driving axle determines whether the vehicle is classified as ，，and all-wheel drive.4. The modern clutch is a single plate, dry disc . It consists of five major parts: flywheel, , pressure plate assembly, , and clutch linkage.5.There are two types of universal joints--and .6.The three types of braking systems are in use today:, and . 7.On today’s cars, two types of steering systems commonly are used to provide steering control: and .8.A braking system consists of an energy---- ,三、译义题（每题2分，共20分）将下列汽车术语的缩写，写出英文全称、中文意思。

1、CVT：2、EFI：3、TPS：4、ABS：5、CAN：6、EGR：7、EPS：8、MAF：9、ASR：10、CACS：四、翻译题（每题10分，共40分）Translate the following sentences intoChinese 。

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 .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.装订线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 the arms, 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.4. In the recirculating ball steering gear, the wormshaft is the input shaft. The wormshaft connects to the steering column in such a way that a mechanic can remove the steering gear or steering column independently of one another. The sector shaft (also called the pitman shaft) is like the output shaft of the steering gear. The main parts of the steering gear are the balls, ball nut, and the gear teeth on the ball nut.As the wormshaft turns, the balls move the ball nut up and down along the wormshaft. This turns the sector shaft, since the sector teeth mesh with the ball nut teeth. The sector shaft is connected through steering linkage to the front wheels.。