Unit 1 The summer holidays 1
Unit 2 In the lab 16
Unit 3 American English 30
Unit 4 Travel 44
Unit 5 Why do you do that? 58
Unit 6 A new factory 72
Unit 7 Earthquakes 87
Unit 8 Mainly revision 100
Unit 9 Computers 111
Unit 10 Sports 124
Unit 11 Country music 137
Unit 12 English programmes 151
Unit 13 Abraham Lincoln 165
Unit 14 Mainly revision 178
Unit 15 Healthy eating 189
Unit 16 Fire! 201
Unit 17 Nature 214
Unit 18 The necklace 227
Unit 19 Jobs 240
Unit 20 Mainly revision 253
Unit 21 Karl Marx 264
Unit 22 Britain and Ireland 278
Unit 23 Rescuing the temple 291
Unit 24 The science of farming 304
Unit 25 At the conference 317
Unit 26 Mainly revision 331