汽车专业英语(原书作者宋红英)第～二章课件.ppt

Unit oneAutomobile Structure Contents Pre-questions Types of Modern Automobiles 1）cars 2）passenger cars 3）trucks 4）tractors and vehicle combination 5）special type vehicle 6）Self-dumping car 7）farm vehicle 8) off-road vehicle Pre-questions Do you know who built the first car in the world and when? Karl Benz In 1886 How many main parts does the automobile consist of? Which is called the “ heart” of automobile? An engine that is used to supply power for an automobile What is the chassis composed of? driving system, running gear, steering system and brake system. Pre-questions Pre-questions What is the electrical system composed of? The electric system includes the battery, generator, starting system, ignition system, lighting system, horn system, radio and other devices. Pre-questions What are the functions of the four systems? Driving system works by transmitting engine power to the driving wheels. Suspension system’s function is to increase strength and durability of components and to meet customers’ requirements for riding comfort and driving safety. Steering system is used to control the driving direction of an automobile. Brake system is used to retard the motion of the vehicle. II. Text Explanation In other words, any automobile is composed of the sections such as engine, chassis, body and electric system. In other words 换句话说 be composed of 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. Text Explanation In other words In other words, they remain relatively constant or static.? 换句话说，它们相对的稳定、静止。 In other words, we have adhered to scientific socialism.? 也就是说，我们坚持了科学社会主义。 be composed of Navy must be composed of surface ship unit and submarine unit.? 海军一定是由水面舰艇部队和潜艇部队组成。 II. Text Explanation The internal combustion engine burns fuel within the cylinders and converts the expanding force of the combustion or “explosion” into rotary force used to propel the vehicle. The internal combustion engine 内燃机 Convert …..into…..使转变