Unit 1 Language语言
Passage&ConVersation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 2 Fire火
Passage&ConVersation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 3 Writing文字
Passage&ConVersation
Practice
Quiz Ⅰ
QuizⅡ
Unit 4 The WheeI轮子
Passage&ConVersation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 5 TooI S工具
Passage&Conversation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 6 Boats and ships船
Passage&Conversation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 7 Art and Music艺术与音乐
Passage&Conversation
Practice
Quiz Ⅰ
QuizⅡ
Unit 8 Agrlculture农业
Passage&Conversation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 9 The Ci ty城市
Passage&Conversation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 10 Religion,Motality and Law宗教、道德与法律
Passage&Conversation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 11 Philosophy哲学
Passage&Conversation
Practice
Quiz Ⅰ
Quiz Ⅱ
Unit 12 Democracy and Human Rights民主与人权
Passage&Conversation
Practice
Quiz Ⅰ
Quiz Ⅱ
附录 文章译文与解答