1. Unit 8 Introduction to Chassis

2. Automobile DiscussionDiscussion  Do you know what the chassis mainly include?  What is the function of power train?  How many types of the brake system includes?  What is the function of suspension system ?

3. Automobile Learning of Important Words  chassis  n. 底盘  transmission  n. 变速器  clutch  n. 离合器  differential  n. 差速齿轮，差速器  torque  n. 转矩  axle  n. 轮轴，车轴，车桥  gearbox  n. 齿轮箱，变速箱   disconnect   v. 断开，分离，拆开   shift   vt. 换档，替换，变速   frame   n. 车架   coast   v. 滑行   tire   n. 轮胎   rebound   v. 回弹   sway   v. 摇摆，摆动

4. Automobile Important Phrases  power train  动力传动系统  drive shaft  传动轴  automatic transmission  自动变速器  ring gear  冠状齿轮  universal joint  万向节  brake system  制动系  steering wheel  转向盘  drag link  转向直拉杆  drum brake  鼓式制动器  brake shoe  制动蹄  master cylinder  主缸，总泵  suspension system  悬架系统

5. Automobile ImportanceImportance Power Train

6. Automobile ImportanceImportance Steering System

7. Automobile ImportanceImportance Brake System

8. Automobile Translate into Chinese  The universal joint or U-joint is used to connect the drive shaft to the transmission output shaft.  Truck steering systems are either manual or power assisted, with power assist units using either hydraulic or air assist setups to make steering effort easier.  The larger the steering wheel diameter, the more torque is generated from the same amount of drive effort.  The expansion of the wheel cylinder through mechanical linkage forces the brake linings into contact with the rotating brake drum to provide braking action.  The second type of system-the air brake system-utilizes compressed air as a source of force to stop the truck.

9. Automobile HomeworkHomework  Study related linkage: Body Construction  Review the text  Remember new words and phrases in the text  Master some translating skills