- 提示：点击一级目录名称可以进入相关单元学习
- .Unit 1 Not too short
- .Unit 2 Never give up
- .Unit 3 Yang Liwei's Mission to Space
- .Unit 4 Review
- .Unit 5 Animals helping people
- .Unit 6 The magic trick
- .Unit 7 An amazing plant
- .Unit 8 Review
- .Unit 9 Preparing for the future
- .Unit 10 The future world
- .Unit 11 Ender's game
- .Unit 12 Review
- .课文注释
- .英语语法
- .单词表
- .听力录音稿
- .单元学习要点