Unit 1 快乐家庭 Billy's bedroom What a mess The best rainy-day picnic A birthday party Talking in his sleep Unit 2 趣味学校 A classroom If I were a manager But it's a horse We have the same mother A history question Unit 3 生活故事 Unit 4 趣味幽默 Unit 5 人物介绍 Unit 6 趣味知识 Unit 7 风土人情 Unit 8 日常对话 Unit 9 童话寓言 Unit 10 图表题 Unit 11 考场篇 Unit 12 竞赛篇