Unit 1 In the library 1
Unit 2 Water sports 30
Unit 3 Make our world more beautiful 56
Unit 4 Travel 77
Unit 5 Have a good time! 96
Unit 6 Mainly revision 117
Unit 7 A man who never gave up 138
Unit 8 Merry Christmas 155
Unit 9 What is it made of? 173
Unit 10 When was it built? 189
Unit 11 Planting trees 206
Unit 12 Mainly revision 223
Unit 13 The world s population 237
Unit 14 Shopping 258
Unit 15 Treating patients 282
Unit 16 The football match 305
Unit 17 The missing necklace 322
Unit 18 Mainly revision 339