Unit 1 A teacher 1
Lesson 1 1
Lesson 2 2
Lesson 3 3
Lesson 4 4
Unit 2 Travelling in Xinjiang 5
Lesson 5 5
Lesson 6 6
Lesson 7 8
Lesson 8 9
Unit 3 The Great Lakes 10
Lesson 9 10
Lesson 10 11
Lesson 11 13
Lesson 12 14
Unit 4 The dragons of Komodo 16
Lesson 13 16
Lesson 14 17
Lesson 15 19
Lesson 16 20
Unit 5 Mainly revision 22
Lesson 17 22
Lesson 18 23
Lesson 19 25
Lesson 20 26
Unit 6 It's a mystery 27
Lesson 21 27
Lesson 22 28
Lesson 23 30
Lesson 24 31
Unit 7 Countries and languages 32
Lesson 25 32
Lesson 26 33
Lesson 27 35
Lesson 28 36
Unit 8 Thanksgiving 37
Lesson 29 37
Lesson 30 38
Lesson 31 40
Lesson 32 41
Unit 9 The skies of two cities 42
Lesson 33 42
Lesson 34 43
Lesson 35 45
Lesson 36 46
Unit 10 Mainly revision 47
Lesson 37 47
Lesson 38 48
Lesson 39 50
Lesson 40 51
强化素质 期中测试 52
Unit 11 The world 56
Lesson 41 56
Lesson 42 57
Lesson 43 58
Lesson 44 60
Unit 12 Tom Sawyer 61
Lesson 45 61
Lesson 46 62
Lesson 47 63
Lesson 48 65
Unit 13 Charity 66
Lesson 49 66
Lesson 50 67
Lesson 51 68
Lesson 52 70
Unit 14 Collecting 71
Lesson 53 71
Lesson 54 72
Lesson 55 73
Lesson 56 74
Unit 15 Murder on the train 75
Lesson 57 75
Lesson 58 76
Lesson 59 78
Lesson 60 79
Unit 16 Mainly revision 80
Lesson 61 80
Lesson 62 81
Lesson 63 82
Lesson 64 83
提高素质 期末评估 84
参考答案 88