美音版本·第四册 精听训练
「美音版本·第四册」共 48 篇精听素材（合计约 138 分钟）。每篇逐句切分，可单句循环精听、逐句听写并自动批改，错词自动进入生词本按遗忘曲线复习。
- 四册48 Planning a Share Portfolio
- 四册47 The Great Escape
- 四册46 Hobbies
- 四册45 Of Men and Galaxies
- 四册44 Patterns of Culture
- 四册43 Are There Strangers in Space
- 四册42 Recording an Earthquake
- 四册41 Training Elephants
- 四册40 Waves
- 四册39 What Every Writer Wants
- 四册38 Water and the Traveller
- 四册37 The Process of Ageing
- 四册36 The Cost of Government
- 四册35 Space Odyssey
- 四册34 Adolescence
- 四册33 Education
- 四册32 Galileo Reborn
- 四册31 The Sculptor Speaks
- 四册30 Exploring the Sea-Floor
- 四册29 The Hovercraft
- 四册28 Patients and Doctors
- 四册27 The vasa
- 四册26 The Past Life of the Earth
- 四册25 Non-Auditory Effects of Noise
- 四册24 Beauty
- 四册23 Bird Flight
- 四册22 Knowledge and Progress
- 四册21 William S
- 四册20 Snake Poison
- 四册19 The Stuff of Dreams
- 四册18 Porpoises
- 四册17 A Man-made Disease
- 四册16 The Modern City
- 四册15 Secrecy in Industry
- 四册14 The Butterfly Effect
- 四册13 The Search for Oil
- 四册12 Banks and Their Customers
- 四册11 How to Grow Old
- 四册10 Silicon Valley
- 四册09 Royal Espionage
- 四册08 Trading Standards
- 四册07 Bats
- 四册06 The Sporting Spirit
- 四册05 Youth
- 四册04 Seeing Hands
- 四册03 Matterhorn Man
- 四册02 Spare That Spider
- 四册01 Finding Fossil Man