Unit 13 Healthy eating 1
Unit 14 Festivals 8
单元检测1 14
Unit 15 The necklace 17
Unit 16 Scientists at work 24
单元检测2 29
Unit 17 Great women 32
Unit 18 New Zealand 38
单元检测3 43
Unit 19 Modern agriculture 46
Unit 20 Humour 51
单元检测4 57
Unit 21 Body Ianguage 60
Unit 22 A world of fun 65
单元检测5 73
综合测试卷 76
听力材料 82
参考答案 87