目录 1
Unit 11 Scientific achievement 1
Unit 12 Fact and fantasy 14
Unit 13 The water planet 27
Unit 14 Freedom Fighters 40
Unit 15 Destinations 52
期中测试题 65
Unit 16 The United States of America 77
Unit 17 Disabilities 90
Unit 18 Inventions 102
Unit 19 The Merchant of Venice 113
Unit 20 Archaeology 125
期末测试题 136
参考答案 148