爱华网新概念英语第四册（全48集）
新概念英语第4册 Lesson 01 Finding fossil man新概念英语第4册 Lesson 02 Spare that spider新概念英语第4册 Lesson 03 Matterhorn man新概念英语第4册 Lesson 04 Seeing hands新概念英语第4册 Lesson 05 Youth新概念英语第4册 Lesson 06 The sporting spirit新概念英语第4册 Lesson 07 Bats新概念英语第4册 Lesson 08 Trading standards新概念英语第4册 Lesson 09 Royal espionage新概念英语第4册 Lesson 10 Silicon valley新概念英语第4册 Lesson 11 How to grow old新概念英语第4册 Lesson 12 Banks and their customers新概念英语第4册 Lesson 13The search for oil新概念英语第4册 Lesson 14 The Butterfly Effect新概念英语第4册 Lesson 15 Secrecy in industry新概念英语第4册 Lesson 16 The modern city新概念英语第4册 Lesson 17 A man-made disease新概念英语第4册 Lesson 18 Porpoises新概念英语第4册 Lesson 19 The stuff of dreams新概念英语第4册 Lesson 20 Snake poison新概念英语第4册 Lesson 21 William S. Hart and the early 'Western' film新概念英语第4册 Lesson 22 Knowledge and progress新概念英语第4册 Lesson 23 Bird flight新概念英语第4册 Lesson 24 Beatuy新概念英语第4册 Lesson 25 Non-auditory effects of noise新概念英语第4册 Lesson 26 The past life of the earth新概念英语第4册 Lesson 27 The 'Vasa'新概念英语第4册 Lesson 28 Patients and doctors新概念英语第4册 Lesson 29 The hovercraft新概念英语第4册 Lesson 30 Exploring the sea-floor新概念英语第4册 Lesson 31 The sculptor speaks新概念英语第4册 Lesson 32 Galileo reborn新概念英语第4册 Lesson 33 Education新概念英语第4册 Lesson 34 Adolescence新概念英语第4册 Lesson 35 Space odyssey新概念英语第4册 Lesson 36 The cost of government新概念英语第4册 Lesson 37 The process of ageing新概念英语第4册 Lesson 38 Water and the traveller新概念英语第4册 Lesson 39 What every writer wants新概念英语第4册 Lesson 40 Waves新概念英语第4册 Lesson 41 Training elephants新概念英语第4册 Lesson 42 Recording an earthquake新概念英语第4册 Lesson 43 Are there strangers in space?新概念英语第4册 Lesson 44 Patterns of culture新概念英语第4册 Lesson 45 Of men and galaxies新概念英语第4册 Lesson 46 Hobbies新概念英语第4册 Lesson 47 The great escape新概念英语第4册 Lesson 48 Planning a share portfolio
