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Unit 1
Chapter 1 Finding fossil man ·¢ÏÖ»¯Ê¯ÈË
Chapter 2 Spare that spider ²»ÒªÉ˺¦Ö©Öë
Chapter 3 Matterhorn man ÂíÌØ»ô¶÷ɽÇøÈË
Chapter 4 Seeing hands ÄÜ¿´¼û¶«Î÷µÄÊÖ
Chapter 5 Youth ÇàÄê
Chapter 6 The sporting spirit ÌåÓý¾«Éñ
Chapter 7 Bats òùòð
Chapter 8 Trading standards óÒ×±ê×¼
Unit 2
Chapter 9 Royal espionage ÍõÊÒµý±¨»î¶¯
Chapter 10 Silicon valley ¹è¹È
Chapter 11 How to grow old ÈçºÎ°²¶ÈÍíÄê
Chapter 12 Banks and their customers ÒøÐк͹˿Í
Chapter 13 The search for oil ̽ѰʯÓÍ
Chapter 14 The butterfly effect ºûµûЧӦ
Chapter 15 Secrecy in industry ¹¤ÒµÖеÄÃØÃÜ
Chapter 16 The modern city ÏÖ´ú³ÇÊÐ
Unit 3
Chapter 17 A man-made disease ÈËΪµÄ¼²²¡
Chapter 18 Porpoises º£ëà
Chapter 19 The stuff of dreams »°ËµÃεı¾ÖÊ
Chapter 20 Snake poison É߶¾
Chapter 21 William S. Hart and the early'Western'film ÍþÁ®¡¤S¡¤¹þÌغÍÔçÆÚ"Î÷²¿"µçÓ°
Chapter 22 Knowledge and progress ֪ʶºÍ½ø²½
Chapter 23 Bird flight ÄñµÄ·ÉÐз½·¨
Chapter 24 Beauty ÃÀ
Unit 4
Chapter 25 Non-auditory effects of noise ÔëÒôµÄ·ÇÌý¾õЧӦ
Chapter 26 The past life of the earth µØÇòÉϵÄÎôÈÕÉúÃü
Chapter 27 The ÔVasa* "ÍßÈø"ºÅ
Chapter 28 Patients and doctors ²¡ÈËÓëÒ½Éú
Chapter 29 The hovercraft Æøµæ´¬
Chapter 30 Exploring the sea-floor º£µ×¿±Ì½
Chapter 31 The sculptor speaks µñËܼҵÄÓïÑÔ
Chapter 32 Galileo reborn Ù¤ÀûÂԵĸ´Éú
Unit 5
Chapter 33 Education ½ÌÓý
Chapter 34 Adolescence Çà´ºÆÚ
Chapter 35 Space odyssey Ì«¿Õ̽Ë÷
Chapter 36 The cost of government Õþ¸®µÄ¿ªÖ§
Chapter 37 The process of ageing Ë¥ÀϹý³Ì
Chapter 38 Water and the traveller Ë®ºÍÂÃÐÐÕß
Chapter 39 What every writer wants ×÷¼ÒÖ®ËùÐè
Chapter 40 Waves º£ÀË
Unit 6
Chapter 41 Training elephants ѵÁ·´óÏó
Chapter 42 Recording an earthquake ¼Ç¼µØÕð
Chapter 43 Are there strangers in space ÓîÖæÖÐÓÐÍâÐÇÈËÂð
Chapter 44 Patterns of culture ÎÄ»¯µÄģʽ
Chapter 45 Of men and galaxies È˺ÍÐÇϵ
Chapter 46 Hobbies ÒµÓà°®ºÃ
Chapter 47 The great escape ´óÌÓÍö
Chapter 48 Planning a share portfolio ¹æ»®¹É·ÝͶ×Ê