Unit 1 Personal Time Management 1
Section One　Culture Smart 1
Understanding American Culture 1
Section Two　Comprehensive Reading 2
Personal Time Management 2
Notes 3
Vocabulary 4
Exercises 5
Section Three　Speaking Practice 7
Section Four　Grammar 7
Adjectives 7
Section Five　Writing Practice 8

Unit 2 Clicks to Brick 11
Section One　Culture Smart 11
Traditional American Values and Beliefs 11
Section Two　Comprehensive Reading 12
Clicks to Brick 12
Notes 14
Vocabulary 15
Exercises 16
Section Three　Speaking Practice 18
Section Four　Grammar 19
Adverbs 19
Section Five　Writing Practice 20

Unit 3 Still Made in China 22
Section One　Culture Smart 22
The American Religious Heritage 22
Section Two　Comprehensive Reading 23
Still Made in China 23
Notes 25
Vocabulary 26
Exercises 27
Section Three　Speaking Practice 29
Section Four　Grammar 29
Preposition and Prepositional Phrases 29
Section Five　Writing Practice 30

Unit 4 Great Minds 32
Section One　Culture Smart 32
The American Frontier Heritage 32
Section Two　Comprehensive Reading 33
Great Minds 33
Notes 34
Vocabulary 35
Exercises 37
Section Three　Speaking Practice 38
Section Four　Grammar 39
It-Pattern 39
Section Five　Writing Practice 40

Unit 5 Facial Recognition 42
Section One　Culture Smart 42
The American Heritage of Abundance 42
Section Two　Comprehensive Reading 43
Facial Recognition 43
Notes 45
Vocabulary 45
Exercises 46
Section Three　Speaking Practice 48
Section Four　Grammar 48
Coordinate Structure 48
Section Five　Writing Practice 49

Unit 6 Driverless Automobiles 51
Section One　Culture Smart 51
The World of American Business (Ⅰ) 51
Section Two　Comprehensive Reading 52
Driverless Automobiles 52
Notes 54
Vocabulary 54
Exercises 55
Section Three　Speaking Practice 57
Section Four　Grammar 57
Subordination 57
Section Five　Writing Practice 58

Unit 7 The Wellness Boom 61
Section One　Culture Smart 61
The World of American Business (Ⅱ) 61
Section Two　Comprehensive Reading 62
The Wellness Boom 62
Notes 64
Vocabulary 65
Exercises 66
Section Three　Speaking Practice 68
Section Four　Grammar 68
Relative Clause 68
Section Five　Writing Practice 69

Unit 8 Hypermobility 71
Section One　Culture Smart 71
Government and Politics in the United States (Ⅰ) 71
Section Two　Comprehensive Reading 72
Hypermobility 72
Notes 74
Vocabulary 74
Exercises 76
Section Three　Speaking Practice 77
Section Four　Grammar 78
Adverbial Clause 78
Section Five　Writing Practice 78

Unit 9 The Threshold of Sustainability for Protected Areas 81
Section One　Culture Smart 81
Government and Politics in the United States (Ⅱ) 81
Section Two　Comprehensive Reading 82
The Threshold of Sustainability for Protected Areas 82
Notes 84
Vocabulary 84
Exercises 86
Section Three　Speaking Practice 88
Section Four　Grammar 88
Conditional Clauses 88
Section Five　Writing Practice 89

Unit 10 Slaves to the Smartphone 92
Section One　Culture Smart 92
Ethnic and Racial Diversity in the United States 92
Section Two　Comprehensive Reading 93
Slaves to the Smartphone 93
Notes 95
Vocabulary 95
Exercises 97
Section Three　Speaking Practice 98
Section Four　Grammar 99
Absolute Construction 99
Section Five　Writing Practice 99

Unit 11 Artificial Intelligence 102
Section One　Culture Smart 102
Education in the United States 102
Section Two　Comprehensive Reading 103
Artificial Intelligence 103
Notes 105
Vocabulary 106
Exercises 108
Section Three　Speaking Practice 110
Section Four　Grammar 110
Content Clause 110
Section Five　Writing Practice 111

Unit 12 Technology in the Workplace Violates Workers’ Privacy 114
Section One　Culture Smart 114
How Americans Spend Their Leisure Time (Ⅰ) 114
Section Two　Comprehensive Reading 115
Technology in the Workplace Violates Workers’ Privacy 115
Notes 117
Vocabulary 117
Exercises 118
Section Three　Speaking Practice 120
Section Four　Grammar 121
Reported Speech 121
Section Five　Writing Practice 122

Unit 13 4D Printing 124
Section One　Culture Smart 124
How Americans Spend Their Leisure Time (Ⅱ) 124
Section Two　Comprehensive Reading 125
4D Printing 125
Notes 127
Vocabulary 127
Exercises 128
Section Three　Speaking Practice 130
Section Four　Grammar 130
Elliptical Construction 130
Section Five　Writing Practice 131

Unit 14 The Risks Agriculture Faces in Developing Countries 133
Section One　Culture Smart 133
American Family 133
Section Two　Comprehensive Reading 134
The Risks Agriculture Faces in Developing Countries 134
Notes 136
Vocabulary 137
Exercises 138
Section Three　Speaking Practice 139
Section Four　Grammar 140
Inversion 140
Section Five　Writing Practice 141

Unit 15 Let’s Stop Pointing Our Camera Phones at Every Single Thing 142
Section One　Culture Smart 142
The American Literature 142
Section Two　Comprehensive Reading 143
Let’s Stop Pointing Our Camera Phones at Every Single Thing 143
Notes 145
Vocabulary 145
Exercises 146
Section Three　Speaking Practice 148
Section Four　Grammar 149
Cohesion 149
Section Five　Writing Practice 149

Unit 16 A Brief History of Tea 152
Section One　Culture Smart 152
The American Media 152
Section Two　Comprehensive Reading 153
A Brief History of Tea 153
Notes 155
Vocabulary 156
Exercises 157
Section Three　Speaking Practice 159
Section Four　Grammar 159
Coherence 159
Section Five　Writing Practice 160

References 162