Chapter 01
The Origin of the Universe
宇宙起源
Lesson 01 Pangu Created the Universe
盘古开天地 ... 002
Lesson 02 A Planet that We Can Trust
一个值得我们信赖的星球 ... 017
Lesson 03 Recycle 1
形容词的比较级与最高级 ... 025
Chapter 02
The Origin of Humans
人类起源
Lesson 04 Nvwa Created Humans
女娲造人 ... 038
Lesson 05 From Fish to Human
从鱼到人 ... 053
Lesson 06 Recycle 2
一般过去时 ... 061
Chapter 03
The Courage to Explore the Unknown
探索未知的勇气
Lesson 07 Kuafu Chased the Sun
夸父逐日 ... 078
Lesson 08 Solar Energy
太阳能 ... 093
Lesson 09 Recycle 3
一般现在时 ... 101
Chapter 04
The Relationship Between Humans and Nature
人与自然的关系
Lesson 10 Nvwa Mended the Sky
女娲补天 ... 118
Lesson 11 A Letter from Mother Earth
来自地球妈妈的一封信 ... 133
Lesson 12 Recycle 4
There be句型的时态/量 ... 142
Chapter 05
The Power of Fire
火的力量
Lesson 13 Drill Wood to Make Fire
钻木取火 ... 162
Lesson 14 Fire Safety
消防安全 ... 177
Lesson 15 Recycle 5
定语从句 ... 186
Chapter 06
The Secrets of Plants
植物的秘密
Lesson 16 Shennong Tasted Hundreds
of Plants
神农尝百草 ... 198
Lesson 17 Can Music Help Plants to Grow
音乐能帮助植物生长吗? ... 213
Lesson 18 Recycle 6
情态动词表推测 ... 223