目录 1
Unit 15 Healthy eating 1
Unit 16 Fire！ 17
Unit 17 Nature 32
Unit 18 The necklace 47
Unit 19 Jobs 64
Unit 20 Mainly revision 79
期中模拟试卷 95
Unit 21 Karl Marx 112
Unit 22 Britain and Ireland 126
Unit 23 Rescuing the temple 140
Unit 24 The Science of farming 154
Unit 25 At the conference 166
Unit 26 Mainly revision 178
期末模拟试卷 190
参考答案 206