Unit 10 When was it built? 1
Lesson 37 1
Lesson 38 2
Lesson 39 4
Lesson 40 5
Unit 11 Planting trees 7
Lesson 41 7
Lesson 42 8
Lesson 43 10
Lesson 44 12
Lesson 45 14
Unit 12 Mainly revision 14
Lesson 46 15
Lesson 47 17
Lesson 48 18
Unit 13 The world's population 20
Lesson 49 20
Lesson 50 21
Lesson 51 23
Lesson 52 24
Unit 14 Shopping 26
Lesson 53 26
Lesson 54 27
Lesson 55 29
Lesson 56 30
Unit 15 A doctor for animals 32
Lesson 57 32
Lesson 58 33
Lesson 59 35
Lesson 60 37
Unit 16 The football match 39
Lesson 61 39
Lesson 62 40
Lesson 63 42
Lesson 64 44
Lesson 65 46
Unit 17 The missing necklace 46
Lesson 66 47
Lesson 67 49
Lesson 68 51
Unit 18 Mainly revision 53
Lesson 69 53
Lesson 70 54
Lesson 71 56
Lesson 72 58
强化素质 期中测试 60
提高素质 期末评估 64
中考权威预测 68
参考答案 73