提示：点击单元就可开始单词学习：
- Module 1 My life
- Unit 1:Helping those in need
- Unit 2:Body Language
- Module 2 The natural world
- Unit 3:Traditional skills
- Unit 4:Cartoons and comic strips
- Module 3 Travels
- Unit 5:Save the endangered animals
- Unit 6:Pets
- Module 4 Fun time
- Unit 7:The unknown world
- Unit 8:Life in the future