Unit 1 Friendship 1
① 1
Unit 2 English around the world 9
Unit 3 Travel journal 18
Unit 4 Earthquakes 29
Unit 5 Nelson Mandela-a modern hero 38
Unit 1 Cultural relics 47
② 47
Unit 2 The Olympic Games 56
Unit 3 Computers 66
Unit 4 Wildlife protection 75
Unit 5 Music 85
Keys 94