Unit One 1
Text A Secrets of A Students 1
Text B Bittersweet Memories 12
Text C Leaving 20
课本部分练习题参考答案 20
Supplementary Exercises 22
Unit Two 26
Text A Conversational Ballgames 26
Text B English as a Universal Language 38
Text C How to Improve Your Vocabulary 49
课本部分练习题参考答案 50
Supplementary Exercises 52
Unit Three 56
Text A Stevie Wonder: Sunshine in the Shadow 56
Text B We Are What We Think We Are 70
Text C Her Newly-discovered Self 83
课本部分练习题参考答案 84
Supplementary Exercises 86
Unit Four 91
Text A The Washwoman 91
Text B A Good Name 105
Text C This Is Why Jordan Is Jordan 117
课本部分练习题参考答案 119
Supplementary Exercises 121
Unit Five 125
Text A The Language of Compromise 125
Text B Easy Ways to Avoid an Argument 134
Text C Good Morning，Neighbor! 149
课本部分练习题参考答案 150
Supplementary Exercises 153
综合测试一 157
Text A Nerds and Geeks 164
Unit Six 164
Text B Our Changing Lifestyle: Trends and Fads 181
Text C Popularity that Counts 190
课本部分练习题参考答案 191
Supplementary Exercises 193
Unit Seven 197
Text A I Became Her Target 197
Text B Firm，Fair，and Friendly 210
Text C The Magic Pebbles 218
课本部分练习题参考答案 219
Supplementary Exercises 221
Unit Eight 225
Text A Foreword 225
Text B Smart Machines: Our Tireless Helpers 237
Text C The Internet 243
课本部分练习题参考答案 244
Supplementary Exercises 246
Unit Nine 250
Text A Hothouse Earth 250
Text B The Population Problem: Everybody s Baby 261
Text C Dangers to the Environment 271
课本部分练习题参考答案 271
Supplementary Exercises 274
Unit Ten 278
Text A Cloning: Good Science or Baaaad Idea 278
Text B Internet Helps Solve a Medical Mystery 290
Text C Fuzzy Logic Smart Machines 297
课本部分练习题参考答案 298
Supplementary Exercises 300
综合测试二 304
附录一 课文参考译文（ Unit1-10） 311
附录二 同步练习参考答案（Unit1-10） 345
附录三 综合测试答案 350
附录四 INDEX 352