Introduction
How to Use This Book
Chapter 1 Social Studies ★ History and Geography ① | 9
Unit 01 A Nation of Diversity 多样化的国家 | 10
Unit 02 The American Electoral System 美国的选举制度 | 14
Unit 03 History and Culture 历史与文化 | 18
Unit 04 The Native People of North America 北美原住民 | 22
Unit 05 The Age of Exploration 地理大发现 | 26
Review Test 1 | 30
Chapter 2 Social Studies ★ History and Geography ② | 31
Unit 06 The Spanish Conquerors 西班牙征服者 | 32
Unit 07 Colonial America 殖民时代的美国 | 36
Unit 08 The Declaration of Independence 《独立宣言》 | 40
Unit 09 Post Civil War 后内战时期 | 44
Unit 10 The United States in the Modern Age 近代美国 | 48
Review Test 2 | 52
Chapter 3 Science ① | 53
Unit 11 Classifying Living Things 生物的分类 | 54
Unit 12 Plant Structure 植物的结构 | 58
Unit 13 Plants Without Seeds 孢子植物 | 62
Unit 14 Flowers and Seeds 花朵与种子 | 66
Unit 15 Adaptations 适应 | 70
Review Test 3 | 74
Chapter 4 Science ② | 75
Unit 16 The Human Body 人体 | 76
Unit 17 Ecosystems 生态系统 | 80
Unit 18 Earth and Resources 地球与资源 | 84
Unit 19 Matter 物质 | 88
Unit 20 The Universe 宇宙 | 92
Review Test 4 | 96
Chapter 5 Mathematics | 97
Unit 21 Numbers 数字 | 98
Unit 22 Computation 计算 | 102
Unit 22 Decimals, Fractions, and Ratios 小数、分数与比 | 106
Unit 24 Geometry 几何 | 110
Review Test 5 | 114
Chapter 6 Language ★ Visual Arts ★ Music | 115
Unit 25 Stories, Myths, and Legends 故事、神话与传说 | 116
Unit 26 Learning About Literature 文学的学习 | 120
Unit 27 Learning About Language 语言的学习 | 124
Unit 28 Renaissance Art 文艺复兴艺术 | 128
Unit 29 American Art 美国艺术 | 132
Unit 30 A World of Music 音乐的世界 | 136
Review Test 6 | 140
Index | 141
Answers and Translations | 147