Unit 12 Vehicle 课件-2022-2023学年中职城市轨道交通专业英语上交大版

内容九 内容八 内容七 内容六 内容五 内容四 内容三 内容二 内容一 城市轨道交通专业英语 标题八 Part 4 Vehicle Vehicle Unit 12 ATO Unit 13 ATP Unit 14 标题八 Unit 12 Vehicle Objectives To say key parts of a metro vehicle. To understand the structure of a metro vehicle. To know the functions of some equipment on a metro vehicle. 标题八 Unit12 Vehicle Class Hour 2 hours 标题八 Unit12 Vehicle Sentence Section A Question: Do you have the basic knowledge of a metro vehicle? Modern metro trains normally are 6 car units, and few of them are either 8 car units or 4 car units. The first metro train was powered by steam. However, modern metro trains are powered by electricity. There are three types of cars in a metro train. They are motor cars with cabs, motor cars without cabs, and trailers. The designed top speed of a metro train is 80 km/h. 标题八 Unit12 Vehicle There are 3 different sizes of cars. Type A is 22 meters long, 3 meters wide; type B is 19 meters long, 2.8 meters wide; type C is 19 meters long and 2.6 meters wide. They have the same height. The capacity of a car depends on its size. Type A has a capacity of 280 passengers and Type B can hold 260 passengers. The weight of a metro car is about 30—40 tons, which needs four powerful electrical motors to reach its regular speed. The electricity used for metro trains is direct current at 750—1,500 volts. 标题八 Unit12 Vehicle Dialogue Section B Question: What are the characteristics of a metro train? (Lin and Peter are talking about the motor cars and trailers newly arrived.) Peter: Lin, do you know we just have some new metro vehicles arrived for this line? Lin: Really, how many? Peter: 4 trains. Every train has 6 cars and trailers. Lin: What are the differences between cars and trailers? Peter: I have no idea, I am going to find out later. 标题八 Unit1 Service Awareness Lin: I hope we can get mo