Unit 1 In the library 1
Unit 2 Water sports 17
Unit 3 Make our world more beautiful! 43
Unit 4 Travel 57
Unit 5 Have a good time! 69
Unit 6 Mainly revision 87
Unit 7 The man who never gave up 104
Unit 8 Merry Christmas! 117
Unit 9 What is it made of? 133
Unit 10 When was it built? 146
Unit 11 Planting Trees 158
Unit 12 Mainly revision 173
Unit 13 The world population 185
Unit 14 Shopping 196
Unit 15 A doctor for animals 208
Unit 16 The football match 223
Unit 17 The missing necklace 239
Unit 18 Mainly revision 247