21世纪大学英语同步精讲 第1册2025|PDF|Epub|mobi|kindle电子书版本百度云盘下载

21世纪大学英语同步精讲 第1册PDF格式电子书版下载

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Unit One1

Text A Secrets of A Students1

Ⅰ.Main Idea of the Text1

Ⅱ.Outline of Each Part1

Ⅲ.Questions and Answers to Check Students'Preview1

Ⅳ.Comprehension of the Text3

Ⅴ.Key to the Exercises of Text A14

Ⅵ.Translation of Text A17

Text B Bittersweet Memories19

Ⅰ.Questions and Answers to Check Students'Preview19

Ⅱ.Comprehension of the Text20

Ⅲ.Key to the Exercises of Text B27

Ⅳ.Translation of Text B27

Text C Leaving28

Ⅰ.Questions and Answers to Check Students'Preview28

Ⅱ.Comprehension of the Text29

Ⅲ.Key to the Exercises of Text C31

Ⅳ.Translation of Text C31

Supplementary Exercises32

Key to Supplementary Exercises35

Unit Two36

Text A Conversational Ballgames36

Ⅰ.Main Idea of the Text36

Ⅱ.Outline of Each Part36

Ⅲ.Questions and Answers to Check Students'Preview36

Ⅳ.Comprehension of the Text38

Ⅴ.Key to the Exercises of Text A50

Ⅵ.Translation of Text A54

Text B English as a Universal Language56

Ⅰ.Questions and Answers to Check Students'Preview56

Ⅱ.Comprehension of the Text57

Ⅲ.Key to the Exercises of Text B60

Ⅳ.Translation of Text B61

Text C How to Improve Your Vocabulary62

Ⅰ.Questions and Answers to Check Students'Preview62

Ⅱ.Comprehension of the Text63

Ⅲ.Key to the Exercises of Text C65

Ⅳ.Translation of Text C65

Supplementary Exercises68

Key to Supplementary Exercises70

Unit Three71

Text A Stevie Wonder:Sunshine In the Shadow71

Ⅰ.Main Idea of the Text71

Ⅱ.Outline of Each Part71

Ⅲ.Questions and Answers to Check Students'Preview71

Ⅳ.Comprehension of the Text73

Ⅴ.Key to the Exercises of Text A82

Ⅵ.Translation of Text A86

Text B We Are What We Think We Are87

Ⅰ.Questions and Answers to Check Students'Preview87

Ⅱ.Comprehension of the Text88

Ⅲ.Key to the Exercises of Text B96

Ⅳ.Translation of Text B96

Text C Her Newly-Discovered Self97

Ⅰ.Questions and Answers to Check Students'Preview97

Ⅱ.Comprehension of the Text98

Ⅲ.Translation of Text C102

Supplementary Exercises104

Key to Supplementary Exercises106

Unit Four107

Text A The Washwoman107

Ⅰ.Main Idea of the Text107

Ⅱ.Outline of Each Part107

Ⅲ.Questions and Answers to Check Students'Preview108

Ⅳ.Comprehension of the Text109

Ⅴ.Key to the Exercises of Text A119

Ⅵ.Translation of Text A123

Text B A Good Name125

Ⅰ.Questions and Answers to Check Students'Preview125

Ⅱ.Comprehension of the Text125

Ⅲ.Key to the Exercises of Text B131

Ⅳ.Translation of Text B131

Text C This Is Why Jordan Is Jordan133

Ⅰ.Questions and Answers to Check Students'Preview133

Ⅱ.Comprehension of the Text133

Ⅲ.Key to the Exercises of Text C136

Ⅳ.Translation of Text C136

Supplementary Exercises137

Key to Supplementary Exercises139

Unit Five141

Text A The Language of Compromise141

Ⅰ.Main Idea of the Text141

Ⅱ.Outline of Each Part141

Ⅲ.Questions and Answers to Check Students'Preview141

Ⅳ.Comprehension of the Text142

Ⅴ.Key to the Exercises of Text A153

Ⅵ.Translation of Text A157

Text B Easy Ways to Avoid an Argument159

Ⅰ.Questions and Answers to Check Students'Preview159

Ⅱ.Comprehension of the Text160

Ⅲ.Key to the Exercises of Text B168

Ⅳ.Translation of Text B168

Text C "Good Morning，Neighbor!"170

Ⅰ.Questions and Answers to Check Students'Preview170

Ⅱ.Comprehension of the Text171

Ⅲ.Key to the Exercises of Text C174

Ⅳ.Translation of Text C174

Supplementary Exercises175

Key to Supplementary Exercises177

Unit Six179

Text A Nerds and Geeks179

Ⅰ.Main Idea of the Text179

Ⅱ.Outline of Each Part179

Ⅲ.Questions and Answers to Check Students'Preview179

Ⅳ.Comprehension of the Text180

Ⅴ.Key to the Exercises of Text A192

Ⅵ.Translation of Text A195

Text B Our Changing Lifestyle:Trends and Fads197

Ⅰ.Questions and Answers to Check Students'Preview197

Ⅱ.Comprehension of the Text197

Ⅲ.Key to the Exercises of Text B201

Ⅳ.Translation of Text B202

Text C Popularity That Counts204

Ⅰ.Questions and Answers to Check Students'Preview204

Ⅱ.Comprehension of the Text205

Ⅲ.Key to the Exercises of Text C208

Ⅳ.Translation of Text C208

Supplementary Exercises209

Key to Supplementary Exercises211

Unit Seven213

Text A I Became Her Target213

Ⅰ.Main Idea of the Text213

Ⅱ.Outline of Each Part213

Ⅲ.Questions and Answers to Check Students'Preview213

Ⅳ.Comprehension of the Text215

Ⅴ.Key to the Exercises of Text A228

Ⅵ.Translation of Text A231

Text B Firm,Fair,and Friendly232

Ⅰ.Questions and Answers to Check Students'Preview232

Ⅱ.Comprehension of the Text233

Ⅲ.Key to the Exercises of Text B239

Ⅳ.Translation of Text B239

Text C The Magic Pebbles240

Ⅰ.Questions and Answers to Check Students'Preview240

Ⅱ.Comprehension of the Text241

Ⅲ.Key to the Exercises of Text C245

Ⅳ.Translation of Text C245

Supplementary Exercises246

Key to Supplementary Exercises248

Unit Eight250

Text A Foreword250

Ⅰ.Main Idea of the Text250

Ⅱ.Outline of Each Part250

Ⅲ.Questions and Answers to Check Students'Preview251

Ⅳ.Comprehension of the Text252

Ⅴ.Key to the Exercises of Text A268

Ⅵ.Translation of Text A270

Text B Smart Machines:Our Tireless Helpers272

Ⅰ.Questions and Answers to Check Students'Preview272

Ⅱ.Comprehension of the Text273

Ⅲ.Key to the Exercises of Text B279

Ⅳ.Translation of Text B279

Text C The Internet280

Ⅰ.Questions and Answers to Check Students'Preview280

Ⅱ.Comprehension of the Text281

Ⅲ.Key to the Exercises of Text C283

Ⅳ.Translation of Text C283

Supplementary Exercises284

Key to Supplementary Exercises286

Unit Nine288

Text A Hothouse Earth288

Ⅰ.Main Idea of the Text288

Ⅱ.Outline of Each Part288

Ⅲ.Questions and Answers to Check Students'Preview288

Ⅳ.Comprehension of the Text290

Ⅴ.Key to the Exercises of Text A303

Ⅵ.Translation of Text A307

Text B The Population Problem:Everybody's Baby309

Ⅰ.Questions and Answers to Check Students'Preview309

Ⅱ.Comprehension of the Text310

Ⅲ.Key to the Exercises of Text B315

Ⅳ.Translation of Text B315

Text C Dangers to the Environment316

Ⅰ.Questions and Answers to Check Students'Preview316

Ⅱ.Comprehension of the Text317

Ⅲ.Key to the Exercises of Text C319

Ⅳ.Translation of Text C319

Supplementary Exercises320

Key to Supplementary Exercises322

Unit Ten324

Text A Cloning:Good Science or Baaaad Idea324

Ⅰ.Main Idea of the Text324

Ⅱ.Outline of Each Part324

Ⅲ.Questions and Answers to Check Students'Preview324

Ⅳ.Comprehension of the Text326

Ⅴ.Key to the Exercises of Text A338

Ⅵ.Translation of Text A342

Text B Internet Helps Solve a Medical Mystery344

Ⅰ.Questions and Answers to Check Students'Preview344

Ⅱ.Comprehension of the Text345

Ⅲ.Key to the Exercises of Text B351

Ⅳ.Translation of Text B351

Text C Fuzzy Logic Smart Machines353

Ⅰ.Questions and Answers to Check Students'Preview353

Ⅱ.Comprehension of the Text353

Ⅲ.Key to the Exercises of Text C355

Ⅳ.Translation of Text C355

Supplementary Exercises356

Key to Supplementary Exercises358