Unit One
Section A Basic Structure of Automobile
Section B History of Automobile Industry
Section C Dialogue
At the 4S Store
Unit Two
Section A Components and Operation of the Engine
Section B Troubles and Maintenance of Engines
Section C Karl Benz
Unit Three
Section A Engine Fuel System
Section B Fuel Injector and Its Maintenance
Section C Dialogue
Price
Unit Four
Section A Engine Exhaust System
Section B Emission Control System
Section C BMW
Unit Five
Section A Engine Cooling System
Section B Cooling System Troubleshooting
Section C Dialogue
Terms of Payment
Unit Six
Section A Engine Lubrication System
Section B Engine Lubricating Oil
Section C Henry Ford
Unit Seven
Section A Engine Ignition System
Section B Battery and Its Maintenance
Section C Dialogue
At the Auto Beauty Shop
Unit Eight
Section A Clutches
Section B Clutch Troubleshooting
Section C General Motors Corporation
Unit Nine
Section A Transmission
Section B Checking and Servicing the Automatic Transmission
Section C Dialogue
In the Auto Repair Shop
Unit Ten
Section A Suspension System
Section B Leaf Spring Maintenance
Section C Toyota
Unit Eleven
Section A Steering System
Section B Causes of Steering Troubles
Section C Dialogue
Auto Insurance
Unit Twelve
Section A Brake System
Section B Antilock Brake System （ABS）
Section C FAW-VW
Appendix
I. Key to the Exercises
II. The Abbreviations
III. The Names of Cars
References
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