Unit 1 Friendship 1
① 1
Unit 2 English around the world 19
Unit 3 Travel journal 31
Unit 4 Earthquakes 44
Unit 5 Nelson Mandela—a modern hero 60
Unit 1 Cultural relics 76
② 76
Unit 2 The Olympic Games 94
Unit 3 Computers 110
Unit 4 Wildlife protection 128
Unit 5 Music 147
Keys 165