目录 1
Unit 13 Healthy eating 1
Unit 14 Festivals 27
Unit 15 The necklace 53
Unit 16 Scientists at work 79
Unit 17 Famous women 105
Unit 18 New Zealand 130
Unit 19 Modern agriculture 154
Unit 20 Humour 179
Unit 21 Body language 205
Unit 22 Aworld of fun 230
答案与提示 256