Unit 1 Engine Overview 1
Passage A Kinds of Engines 1
Passage B Engine Types and Operating Principles 7
Passage C Have a Try 12
Unit 2 Hybrid-Electric Vehicle and VR6/W12 Engine 14
Passage A Hybrid-Electric Vehicle 14
Passage B VR6 and W12 Engine 19
Passage C Have a Try 23
Unit 3 Valve Train and Variable Valve Timing 25
Passage A Valve Train 25
Passage B Variable Valve Timing 31
Passage C Have a Try 35
Unit 4 Engine Ignition System and Starting System 37
Passage A Ignition System 37
Passage B Starting System 42
Passage C Have a Try 46
Unit 5 The Power Train 48
Passage A Power Train(Ⅰ) 48
Passage B Power Train(Ⅱ) 55
Passage C Have a Try 61
Unit 6 Automobile Brake System 63
Passage A Brake System(Ⅰ) 63
Passage B Brake System(Ⅱ) 69
Passage C Have a Try 73
Unit 7 Automobile Suspension System 74
Passage A Suspension System 74
Passage B Suspension Types 80
Passage C Have a Try 85
Unit 8 Automobile Steering System 87
Passage A Steering System 87
Passage B Power Steering 93
Passage C Have a Try 96
Unit 9 Engine Lubrication and Cooling System 98
Passage A Lubrication System 98
Passage B Cooling System 102
Passage C Have a Try 107
Unit 10 SRS Airbag and Air Conditioning System 109
Passage A SRS Airbag 109
Passage B Air Conditioning System 114
Passage C Have a Try 119
Glossary（词汇表） 121
Phrases and Expressions（短语和词组） 134
References（参考文献） 144