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Lesson One 1

Text:He Led a Useful Life 1

Grammar:The Subjunctive Mood(Ⅰ) 9

Reading Material:Britain 19

Lesson Two 22

Text:The Fun They Had 22

Grammar:The Participle(Ⅲ) 29

Reading Material:Atoms and You 35

Lesson Three 39

Text:Modern Lighthouses 39

Grammar:The Gerund(Ⅱ) 45

Reading Material:The Loss of‘Titanic' 51

Lesson Four 55

Text:“Where Time Began” 55

Grammar:The Subjunctive Mood(Ⅱ) 61

Reading Material:Our Planet's History 67

Lesson Five 71

Text:The Long Chain of Evolution 71

Grammar:The Preposition and Prepositional Phrases(Ⅱ) 77

Reading Material:The Theory of Evolution 87

Lesson Six 91

Text:The Kraken Arrives 91

Reading Material:Man the Menace 107

Lesson Seven 110

Text:Alfred Nobel—A Man of Contrasts 110

Grammar:Ellipsis 117

Reading Material:Lincoln's Autobiography 125

Lesson Eight 130

Text:A Creature of His Times 130

Grammar:Inversion 137

Reading Material:Setback for Zilchships 147

Lesson Nine 151

Text:Simple Habits,Deep Thoughts 151

Grammar:The Uses of“That” 159

Reading Material:Star Wars—and Einstein 170

Lesson Ten 174

Text:The Wasp and the Spider 174

Grammar:The Uses of“It” 181

Reading Material:They Seem Almost Human 190

Lesson Eleven 194

Text:Are There Strangers in Space? 194

Grammar:The Uses of“As” 201

Reading Material:Other Worlds 212

Lesson Twelve 215

Text:Physics and the Future(Epilogue to Life Science Physics) 215

Reading Material:Preface to Contemporary Physics 229

Supplementary Readings 234

1．Time Zones and the Date Line 234

2．Travelling in the Jungle 235

3．Danger—Keep Off! 238

4．Digging up History 241

5．Introduction 243

6．New Wonder in Camaras 246

7．Michael Faraday 248

8．Atoms 251

9．Discovery by Accident 254

10．How Computers are Changing Our World 258

11．Arriving from Outer Space 262

12．How Scientists Solve Problems 264

Appendix 269

1．Word Formation 269

2．A List of Common English and American English Words 276

3．Vocabulary 280