Lesson 1 Finding fossil man 1
Lesson 2 Spare that spider 5
Lesson 3 Matterhorn man 9
Lesson 4 Seeing hands 12
Lesson 5 Youth 16
Lesson 6 The sporting spirit 20
Lesson 7 Bats 23
Lesson 8 Trading standards 26
Lesson 9 Royal espionage 29
Lesson 10 Silicon valley 34
Lesson 11 How to grow old 38
Lesson 12 Banks and their customers 41
Lesson 13 The search for oil 44
Lesson 14 The Butterfly Effect 47
Lesson 15 Secrecy in industry 50
Lesson 16 The modern city 54
Lesson 17 A man-made disease 57
Lesson 18 Porpoises 61
Lesson 19 The stuff of dreams 66
Lesson 20 Snake poison 70
Lesson 21 Williams S．Hart and the early"Western"film 74
Lesson 22 Knowledge and progress 78
Lesson 23 Bird flight 82
Lesson 24 Beauty 86
Lesson 25 Non-auditory effects of noise 90
Lesson 26 The past life of the earth 94
Lesson 27 The"Vasa" 98
Lesson 28 Patients and doctors 102
Lesson 29 The hovercraft 106
Lesson 30 Exploring the sea-floor 110
Lesson 31 The sculptor speaks 115
Lesson 32 Galileo reborn 119
Lesson 33 Education 123
Lesson 34 Adolescence 127
Lesson 35 Space odyssey 131
Lesson 36 The cost ofgovernment 136
Lesson 37 The process of ageing 140
Lesson 38 Water and the traveller 145
Lesson 39 What every writer wants 149
Lesson 40 Waves 153
Lesson 41 Training elephants 157
Lesson 42 Recording an earthquake 160
Lesson 43 Are there strangers in space? 165
Lesson 44 Patterns of culture 169
Lesson 45 Of men and galaxies 174
Lesson 46 Hobbies 179
Lesson 47 The great escape 184
Lesson 48 Planning a share portfolio 189
参考答案 193