Unit 11 Scientific achievement
Unit 12 Fact and fantasy
Test (Units11-12)
Unit 13 The water planet
Unit 14 Freedom fighters
Test (Unit13-14)
Unit 15 Destinations
Unit 16 The United States of Amerca
Test (Unit15-16)
期中测试
Unit 17 Disabilties
Unit 18 Inventions
Test (Units17-18)
Unit 19 The Merchant of Venice
Unit 20 Archaeology
Test(Units19-20)
期末测试