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UNIT 1 世界机械工程史 1

SECTION ONE DIALOGUE 2

I'm Fond of my Major 2

SECTION TWO READING 4

History of Mechanical Engineering in the World 4

SECTION THREE GRAMMAR 8

定语从句 （一） 8

SECTION FOUR EXERCISES 9

UNIT 2 机械工程制图 11

SECTION ONE DIALOGUE 12

Do you like Engineering Drawing Class? 12

SECTION TWO READING 14

Mechanical Engineering Drawing 14

SECTION THREE GRAMMAR 17

定语从句（二） 17

SECTION FOUR EXERCISES 18

UNIT 3 初加工工艺 20

SECTION ONE DIALOGUE 21

I Want to Visit a Steelworks 21

SECTION TWO READING 23

Primary Processes 23

SECTION THREE GRAMMAR 27

定语从句（三） 27

SECTION FOUR EXERCISES 28

UNIT 4 精加工工艺 30

SECTION ONE DIALOGUE 31

Would You Mind Moving On To Another Job? 31

SECTION TWO READING 33

Secondary Processes 33

SECTION THREE GRAMMAR 37

被动语态（一） 37

SECTION FOUR EXERCISES 38

UNIT 5 金属材料的类型 40

SECTION ONE DIALOGUE 41

Where are All Metals Found 41

SECTION TWO READING 43

Types of Metal Materials 43

SECTION THREE GRAMMAR 47

被动语态（二） 47

SECTION FOUR EXERCISES 48

UNIT 6 机器元件 50

SECTION ONE DIALOGUE 51

Lubricants Belong to Machine Elements 51

SECTION TWO READING 53

Machine Elements 53

SECTION THREE GRAMMAR 56

被动语态（三） 56

SECTION FOUR EXERCISES 57

UNIT 7 切螺纹 59

SECTION ONE DIALOGUE 60

Cherish Your Screws and Bolts! 60

SECTION TWO READING 62

Metal Threading 62

SECTION THREE GRAMMAR 65

被动语态（四） 65

SECTION FOUR EXERCISES 66

UNIT 8 金属加工 68

SECTION ONE DIALOGUE 69

Tell me What's Metalworking 69

SECTION TWO READING 71

Metalworking 71

SECTION THREE GRAMMAR 74

被动语态（五） 74

SECTION FOUR EXERCISES 75

UNIT 9 车床 77

SECTION ONE DIALOGUE 78

This Lathe Picture is too Old to See Clearly! 78

SECTION TWO READING 80

Lathe 80

SECTION THREE GRAMMAR 84

被动语态（六） 84

SECTION FOUR EXERCISES 85

UNIT 10 铣床 87

SECTION ONE DIALOGUE 88

May I Have a Refund on the Milling Machine? 88

SECTION TWO READING 90

Milling Machine 90

SECTION THREE GRAMMAR 93

被动语态（七） 93

SECTION FOUR EXERCISES 94

UNIT 11 切割工具 96

SECTION ONE DIALOGUE 97

He's Making Power Saws 97

SECTION TWO READING 99

Cut-off Tools 99

SECTION THREE GRAMMAR 104

分词（一） 104

SECTION FOUR EXERCISES 105

UNIT 12 热处理工艺 107

SECTION ONE DIALOGUE 108

It's Has Gone Through the Heat Treatment 108

SECTION TWO READING 110

Heat Treatment Processes 110

SECTION THREE GRAMMAR 113

分词（二） 113

SECTION FOUR EXERCISES 114

UNIT 13 测量 117

SECTION ONE DIALOGUE 118

IWant Something Plainer 118

SECTION TWO READING 120

Measurement 120

SECTION THREE GRAMMAR 124

分词（三） 124

SECTION FOUR EXERCISES 125

UNIT 14 数控机床概述 127

SECTION ONE DIALOGUE 128

You are so Considerate! 128

SECTION TWO READING 130

Numerical Control Machine 130

SECTION THREE GRAMMAR 134

分词（四） 134

SECTION FOUR EXERCISES 135

UNIT 15 数控车床的结构 137

SECTION ONE DIALOGUE 138

I'm Afraid They Couldn't 138

SECTION TWO READING 140

The Structure of a CNC Lathe 140

SECTION THREE GRAMMAR 145

分词（五） 145

SECTION FOUR EXERCISES 146

UNIT 16 数控车床的操作 148

SECTION ONE DIALOGUE 149

Why Haven't I Figured out? 149

SECTION TWO READING 151

CNC Lathe Operation（1） 151

SECTION THREE GRAMMAR 156

分词（六） 156

SECTION FOUR EXERCISES 157

各单元练习题（Section Four）答案 158

参考文献 161