符号说明 字母书写规则及练习 必修第一册 Welcome Unit Unit l Teenage Life Unit 2 Travelling Around Unit 3 Sports and Fitness Unit 4 Natural Disasters Unit 5 Languages Around the World 必修第二册 Unit l Cultural Heritage Unit 2 Wildlife Protection Unit 3 The Intemet Unit 4 History and Traditions Unit 5 Music 必修第三册 Unit 1 Festivals and Celebrations Unit 2 Morals and Virtues Unit 3 Diverse Cultures Unit 4 Space Exploration Unit 5 The Value of Money 高频词汇 重点短语
