Unit 13 Healthy eating 1
单元过关 5
Unit 14 Festivals 11
单元过关 14
Unit 15 The neeklace 20
单元过关 23
Unit 16 Scientists at work 29
单元过关 32
Unit 17 Great women 37
单元过关 40
期中测试题 46
Unit 18 New Zealand 51
单元过关 54
Unit 19 Modern agriculture 59
单元过关 62
Unit 20 Humour 68
单元过关 71
Unit 21 Body language 77
单元过关 80
Unit 22 A world of fun 86
单元过关 89
期末测试题 95
答案与导解 101