迈克尔·A.帕特莱克（Michael A. Putlack）：毕业于美国塔芙茨大学，获得英语文学学士和历史学硕士双学位。他撰写的多部英语学习类畅销书籍被众多莘莘学子鼎力推荐。 英创文化（e-Creative Contents）：韩国专门研究编著ESL和EFL考试辅导资料的专业化机构。 李小贝：瑞思学科英语天津公司董事长，上海廿一文化会所CEO
目录
Chapter 1 Social StudiesHistory and Geography Unit 01 Countries in the World Unit 02 The World's Best Unit 03 Earth Is Our Home Unit 04 Recycle, Reuse, and Reduce Review Test 1 Chapter 2 Science Unit 05 A World of Animals: Bears Unit 06 Earthquakes Unit 07 The Food Pyramid Unit 08 Staying Healthy Review Test 2 Chapter 3 Language Mathematics Music Visual Arts Music Unit 09 Where Is It? Unit 10 Addition and Subtraction Unit 11 The Ant and the Dove Unit 12 A World of Instruments Review Test 3 Word List
