Culture

1. Why Is Bubble Tea So popular in Britain? 为什么奶茶在英国如此受欢迎？

Animals

1. Why Do Dogs Always Bark at the Air? 为什么狗总对着空气汪汪叫？

Lifestyles

1. Some Ways to Boost Your Mood on Bad Weather Days 在天气糟糕时改善情绪的一些方法
2. How Much Do You Know About Building a Habit? 习惯养成知多少？

Sports

1. How to Use Treadmills Safely 如何安全使用跑步机

Learning Box

1. Why Does Autumn Have Two Names in America? 在美国，秋天为什么有两个名字？

Skill Enhancement

1. Units 1—2 Review
2. Units 3—4 Review
3. Units 5—6 Review
4. Units 1—6 Review
5. Units 1—2 Review
6. Units 3—4 Review
7. Units 5—6 Review
8. Units 1—6 Review
9. Final Test
10. Keys