Unit1 A teacher 1
Lesson 1 1
Lesson 2 4
Lesson 3 11
Lesson 4 16
Unit2 Travelling in Xinjiang 19
Lesson 5 19
Lesson 6 22
Lesson 7 25
Lesson 8 27
Unit3 The Great Lakes 29
Lesson 9 29
Lesson 10 31
Lesson 11 36
Lesson 12 36
Unit4 The dragons of Komodo 39
Lesson 13 39
Lesson 14 41
Lesson 15 46
Lesson 16 47
Unit5 Mainly revision 49
Lesson 17 49
Lesson 18 51
Lesson 19 54
Lesson20 55
Unit6 It'sa mystery 59
Lesson21 59
Lesson22 60
Lesson 23 66
Lesson24 67
Unit7 Countries and languages 71
Lesson25 71
Lesson26 73
Lesson27 77
Lesson28 79
Unit 8 Thanksgiving 84
Lesson29 84
Lesson30 86
Lesson 31 90
Lessonn32 92
Unit9 The skies of two cities 96
Lesson 33 96
Lesson 34 97
Lesson 35 101
Lesson 36 102
Unit 10 Mainly revision 105
Lesson 37 105
Lesson 38 106
Lesson 39 108
Lesson40 109
Unit 11 The world 113
Lesson41 113
Lesson42 114
Lesson43 118
Lesson44 119
Unit 12 Tom Sawyer 119
Lesson45 119
Lesson46 121
Lesson47 124
Lesson48 127
Unit 13 Charity 129
Lesson49 129
Lesson 50 130
Lesson 51 134
Lesson 52 135
Unit 14 Collecting 137
Lesson 53 137
Lesson 54 139
Lesson 55 142
Lesson 56 143
Unit15 Murder on the train 146
Lesson 57 146
Lesson 58 150
Lesson 59 153
Lesson 60 156
Unit 16 Mainly revision 158
Lesson61 158
Lesson 62 161
Lesson 63 165
Lesson64 166