Unit 15 What do people eat？ 1
Unit 16 What a good， kind girl！ 11
Unit 17 You must be more careful！ 21
Unit 18 Seeing the doctor 30
Unit 19 A visit to an island 39
Unit 20 Mainly revision 48
Units 15～20小结 56
期中测试题 62
Unit 21 She taught herself 70
Unit 22 The sports meeting 79
Unit 23 A famous peson 87
Unit 24 What were they doing？ 96
Unit 25 The accident 105
Unit 26 Mainly revision 114
Units 21～26小结 122
期末测试题 128
参考答案 135