Unit 11 Scientific achievements 1
Unit 12 Fact and fantasy 10
Unit 13 The water planet 19
Unit 14 Freedom fighters 27
Unit 15 Destinations 36
Mid-term examination 44
Unit 16 The United States of America 53
Unit 17 Disabilities 63
Unit 18 Inventions 72
Unit 19 The Merchant of Venice 82
Unit 20 Archaeology 92
Terminal examination 101
Tapescripts and keys 111