Unit 1 1
Text A How to be a Successful Language Learner? 1
练习答案 10
Text B Language 11
练习答案 19
Unit 2 22
Text A Taxes,Taxes,and More Taxes 22
练习答案 31
Text B Advertising 33
练习答案 41
Unit 3 43
Text A The Atlantic Ocean 43
练习答案 53
Text B The Moon 54
练习答案 62
Unit 4 66
Text A Improving Your Memory 66
练习答案 74
Text B Short-term Memory 75
练习答案 86
Unit 5 89
Text A Fallacies about Food 89
练习答案 97
Text B Do Animals Think? 99
练习答案 108
Unit 6 110
Text A Diamonds 110
练习答案 120
Text B The Difference between Plants and Animals 121
练习答案 129
Unit 7 132
Text A Families 132
练习答案 139
Text B The Changing American Family 141
练习答案 149
Unit 8 152
Text A Telecommunication via Satellite 152
练习答案 161
Text B What People Don't Know about Air 163
练习答案 170
Unit 9 173
Text A Learned Words and Popular Words 173
练习答案 180
Text B How Should You Build Up Your Vocabulary? 182
练习答案 190
Unit 10 193
Text A Scientific Attitudes 193
练习答案 202
Text B Solving Problems Scientifically 204
练习答案 212
Unit 11 215
Text A The Great American Garage Sale 215
练习答案 223
Text B American Stores 225
练习答案 235
Unit 12 237
Text A How Dictionaries Are Made 237
练习答案 244
Text B Reading Provides Necessary Survival Skills 246
练习答案 255
Unit 13 258
Text A Insurance 258
练习答案 266
Text B What Is Money and What Are Its Functions? 268
练习答案 276
Unit 14 278
Text A The Importance of Being Kind and Polite 278
练习答案 286
Text B Why We Walk in Circles 288
练习答案 295
Unit 15 297
Text A How TV Violence Affects Kids 297
练习答案 305
Text B Why Don't Girls Think Like Boys? 307
练习答案 316
Unit 16 319
Text A Heart Disease:Treat or Prevent? 319
练习答案 329
Text B Dieting Your Way to Health 331
练习答案 341
Unit 17 344
Text A Panic and Its Effects 344
练习答案 352
Text B Sleepwalking—Fact or Fancy? 355
练习答案 363
Unit 18 366
Text A Why Are Maps Drawn with North at the Top? 366
练习答案 374
Text B You Have a Choice 376
练习答案 387
Unit 19 389
Text A Animals at Risk:Who Cares? 389
练习答案 397
Text B The Killer Smogs 399
练习答案 409
Unit 20 412
Text A You Can't Do It Because It Hurts Nobody 412
练习答案 420
Text B Marriage in Iran and America:A Study in Contrasts 422
练习答案 430
Unit 21 433
Text A The Language of Uncertainty 433
练习答案 440
Text B It Never Rains but It Pours! 442
练习答案 450
Unit 22 451
Text A Current Attitudes toward Physical Fitness 451
练习答案 458
Text B People and Colors 459
练习答案 468
Unit 23 470
Text A Non-verbal Communication 470
练习答案 478
Text B Body Talk 480
练习答案 485
Unit 24 487
Text A Saving the Rainforests for Future Generations 487
练习答案 495
Text B Life on the Tundra 497
练习答案 505
Unit 25 507
Text A Amerian Men Don't Cry 507
练习答案 515
Text B Stop Worrying Now! 517
练习答案 527
Model Test One 528
参考答案 536
Model Test Two 542
参考答案 550