Unit 1
Lesson 1 Finding fossil man 发现化石人 3
Lesson 2 Spare that spider 不要伤害蜘蛛 9
Lesson 3 Matterhorn man 马特霍恩山区人 12
Lesson 4 Seeing hands 能看见东西的手 19
Lesson 5 Youth 青年 23
Lesson 6 The sporting spirit 体育的精神 30
Lesson 7 Bats 蝙蝠 37
Lesson 8 Trading standards 贸易标准 44
Unit 2
Lesson 9 Royal espionage 王室谍报活动 53
Lesson 10 Silicon valley 硅谷 64
Lesson 11 How to grow old 如何安度晚年 74
Lesson 12 Banks and their customers 银行和顾客 80
Lesson 13 The search for oil 探寻石油 87
Lesson 14 The Butterfly Effect 蝴蝶效应 94
Lesson 15 Secrecy in industry 工业中的秘密 103
Lesson 16 The modern city 现代城市 107
Unit 3
Lesson 17 A man-made disease 人为的疾病 119
Lesson 18 Porpoises 海豚 130
Lesson 19 The stuff of dreams 话说梦的本质 140
Lesson 20 Snake poison 蛇毒 147
Lesson 21 William S.Hart and the early'Western'film 威廉·S·哈特和早期“西部”影片 159
Lesson 22 Knowledge and progress 知识和进步 170
Lesson 23 Bird flight 鸟的飞行方法 177
Lesson 24 Beauty 美 184
Unit 4
Lesson 25 Non-auditory effects of noise 噪音的非听觉效应 193
Lesson 26 The past life of the earth 地球上的昔日生命 201
Lesson 27 The'Vasa' “瓦萨”号 207
Lesson 28 Patients and doctors 病人与医生 212
Lesson 29 The hovercraft 气垫船 219
Lesson 30 Exploring the sea-floor 海底勘探 223
Lesson 31 The sculptor speaks 雕塑家的语言 230
Lesson 32 Galileo reborn 伽利略的复生 237
Unit 5
Lesson 33 Education 教育 249
Lesson 34 Adolescence 青春期 258
Lesson 35 Space odyssey 太空探索 265
Lesson 36 The cost of government 政府的开支 271
Lesson 37 The process of ageing 衰老过程 277
Lesson 38 Water and the traveller 水和旅行者 284
Lesson 39 What every writer wants 作家之所需 290
Lesson 40 Waves 海浪 298
Unit 6
Lesson 41 Training elephants 训练大象 309
Lesson 42 Recording an earthquake 记录地震 321
Lesson 43 Are there strangers in space？ 宇宙中有外星人吗？ 328
Lesson 44 Patterns of culture 文化的模式 335
Lesson 45 Of men and galaxies 人和星系 346
Lesson 46 Hobbies 业余爱好 351
Lesson 47 The great escape 大逃亡 363
Lesson 48 Planning a share portfolio 规划股份投资 376
Game 1 384
Game 2 386
Game 3 387
Game 4 389
Game 5 391
Game 6 392
Game 7 394
Game 8 396
Game 9 397
Game 10 399