Unit 1
Chapter 1 Finding fossil man 发现化石人
Chapter 2 Spare that spider 不要伤害蜘蛛
Chapter 3 Matterhorn man 马特霍恩山区人
Chapter 4 Seeing hands 能看见东西的手
Chapter 5 Youth 青年
Chapter 6 The sporting spirit 体育精神
Chapter 7 Bats 蝙蝠
Chapter 8 Trading standards 贸易标准
Unit 2
Chapter 9 Royal espionage 王室谍报活动
Chapter 10 Silicon valley 硅谷
Chapter 11 How to grow old 如何安度晚年
Chapter 12 Banks and their customers 银行和顾客
Chapter 13 The search for oil 探寻石油
Chapter 14 The butterfly effect 蝴蝶效应
Chapter 15 Secrecy in industry 工业中的秘密
Chapter 16 The modern city 现代城市
Unit 3
Chapter 17 A man-made disease 人为的疾病
Chapter 18 Porpoises 海豚
Chapter 19 The stuff of dreams 话说梦的本质
Chapter 20 Snake poison 蛇毒
Chapter 21 William S. Hart and the early'Western'film 威廉·S·哈特和早期"西部"电影
Chapter 22 Knowledge and progress 知识和进步
Chapter 23 Bird flight 鸟的飞行方法
Chapter 24 Beauty 美
Unit 4
Chapter 25 Non-auditory effects of noise 噪音的非听觉效应
Chapter 26 The past life of the earth 地球上的昔日生命
Chapter 27 The 訴asa* "瓦萨"号
Chapter 28 Patients and doctors 病人与医生
Chapter 29 The hovercraft 气垫船
Chapter 30 Exploring the sea-floor 海底勘探
Chapter 31 The sculptor speaks 雕塑家的语言
Chapter 32 Galileo reborn 伽利略的复生
Unit 5
Chapter 33 Education 教育
Chapter 34 Adolescence 青春期
Chapter 35 Space odyssey 太空探索
Chapter 36 The cost of government 政府的开支
Chapter 37 The process of ageing 衰老过程
Chapter 38 Water and the traveller 水和旅行者
Chapter 39 What every writer wants 作家之所需
Chapter 40 Waves 海浪
Unit 6
Chapter 41 Training elephants 训练大象
Chapter 42 Recording an earthquake 记录地震
Chapter 43 Are there strangers in space 宇宙中有外星人吗
Chapter 44 Patterns of culture 文化的模式
Chapter 45 Of men and galaxies 人和星系
Chapter 46 Hobbies 业余爱好
Chapter 47 The great escape 大逃亡
Chapter 48 Planning a share portfolio 规划股份投资