Lesson 1 Finding fossil man 1
Lesson 2 Spare that spider 5
Lesson 3 Matterhorn man 8
Lesson 4 Seeing hands 11
Lesson 5 Youth 14
Lesson 6 The sporting spirit 17
Lesson 7 Bats 20
Lesson 8 Trading standards 23
Lesson 9 Royal espionage 26
Lesson 10 Silicon valley 30
Lesson 11 How to grow old 33
Lesson 12 Banks and their customers 36
Lesson 13 The search for oil 40
Lesson 14 The butterfly effect 43
Lesson 15 Secrecy in industry 47
Lesson 16 The modern city 51
Lesson 17 A man-made disease 54
Lesson 18 Porpoises 57
Lesson 19 The stuff of dreams 60
Lesson 20 Snake poison 64
Lesson 21 Williams S.Hart and the early"Western"film 67
Lesson 22 Knowledge and progress 70
Lesson 23 Bird flight 73
Lesson 24 Beauty 77
Lesson 25 Non-auditory effects of noise 80
Lesson 26 The past life of the earth 84
Lesson 27 The"Vase" 87
Lesson 28 Patients and doctors 90
Lesson 29 The hovercraft 94
Lesson 30 Exploring the sea-floor 98
Lesson 31 The sculptor speaks 101
Lesson 32 Galileo reborn 104
Lesson 33 Education 108
Lesson 34 Adolescence 111
Lesson 35 Space odyssey 114
Lesson 36 The cost of government 117
Lesson 37 The process of ageing 120
Lesson 38 Water and the traveller 123
Lesson 39 What every writer wants 126
Lesson 40 Waves 129
Lesson 41 Training elephants 132
Lesson 42 Recording an earthquake 135
Lesson 43 Are there strangers in space？ 138
Lesson 44 Patterns of culture 141
Lesson 45 Of men and galaxies 144
Lesson 46 Hobbies 147
Lesson 47 The great escape 150
Lesson 48 Planning a share portfolio 153
参考答案 156