1. 人物简介

Culture

1. A Brief History of Jiaozi  饺子简史

Science

1. The Power of Puppies: Looking at Cute Images Can Improve Focus 小狗的力量——看可爱的图像可以提高注意力

Facts

1. Some Brain “Facts” We All Get Wrong  几个被误解的大脑“真相”
2. Some Facts That May Surprise You about Sharks  一些有关鲨鱼的冷知识

Animals

1. There Is No Time Left for Antarctica’s Emperor Penguins 南极帝企鹅已危在旦夕

Learning and Exercises

1. Unit 1 A new start
2. Section Ⅱ Using language
3. Section Ⅲ Developing ideas
4. Writing 话题表达指导
5. Section Ⅳ Presenting ideas 核心短语与句型回顾
6. Unit 2 Exploring English
7. Section Ⅱ Using language
8. Section Ⅲ Developing ideas
9. Writing 话题表达指导
10. Section Ⅳ Presenting ideas 核心短语与句型回顾
11. Unit 3 Family matters
12. Section Ⅱ Using language
13. Section Ⅲ Developing ideas
14. Writing 话题表达指导
15. Section Ⅳ Presenting ideas 核心短语与句型回顾
16. Unit 4 Friends forever
17. Section Ⅱ Using language
18. Section Ⅲ Developing ideas
19. Writing 话题表达指导
20. Section Ⅳ Presenting ideas 核心短语与句型回顾
21. Unit 5 Into the wild
22. Section Ⅱ Using language
23. Section Ⅲ Developing ideas
24. Writing 话题表达指导
25. Section Ⅳ Presenting ideas 核心短语与句型回顾
26. Unit 6 At one with nature
27. Section Ⅱ Using language
28. Section Ⅲ Developing ideas
29. Writing 话题表达指导
30. Section Ⅳ Presenting ideas 核心短语与句型回顾
31. Keys