Unit1 The summer holidays 1
Unit2 In the lab 10
Unit3 American English 19
Unit4 Travel 28
Unit5 Why do you do that？ 38
Unit6 A new factory 48
Unit7 Earthquakes 58
Unit8 Mainly revision 67
Unit9 Computers 76
Unit10 Sports 86
Unit11 Country music 96
Unit12 English programmes 105
Unit13 Abraham Lincoln 114
Unit14 Mainly revision 122
Unit15 Healthy eating 130
Unit16 Fire! 139
Unit17 Nature 147
Unit18 The necklace 156
Unit19 Jobs 166
Unit20 Mainly revision 175
Unit21 Karl Marx 184
Unit22 Britain and Ireland 193
Unit23 Rescuing the temple 202
Unit24 The science of farming 211
Unit25 At the conference 221
Unit26 Mainly revision 230