如何使用本书 Cultures and Customs Unit 1 Groundhog Day土拨鼠日 Unit 2 Ramadan斋月 Animals and Plants Unit 3 Trees树 Unit 4 Shells贝壳 General Knowledge Unit 5 Human Beings人类 Unit 6 Units of Measurement计量单位 Language and Literature Unit 7 Novels小说 Unit 8 The Knights of the Round Table圆桌骑士 Science Unit 9 Genes and DNA基因和DNA Unit 10 The Solar System太阳系 Famous People and Events Unit 11 Valentine'S Day情人节 Unit 12 William Tell威廉？退尔 Sports and Art Unit 13 The World Cup世界杯 Unit 14 Still Life静物画 Media and Technology Unit 15 The Internet因特网 Unit 1 6 The Automobile汽车 The Earth and the Environment Unit 1 7 Thunder and Lightning雷电 Unit 1 8 Recycling回收利用 History Unit 19 The 1930s 20世纪30年代 Unit 20 The Stock Exchange股票交易所 答案 词汇表
