Unit 1 The summer holidays 1
Unit 2 In the lab 9
Unit 3 American English 17
Unit 4 Travel 25
Unit 5 Why do you do that? 33
Unit 6 A new factory 41
Unit 7 Earthquakes 49
Unit 8 Mainly revision 57
Unit 9 Computers 65
Unit 10 Sports 73
Unit 11 Country music 81
Unit 12 English Programmes 89
Unit 13 Abraham Lincoln 97
Unit 14 Mainly revision 105
Unit 15 Healthy eating 113
Unit 16 Fire! 121
Unit 17 Nature 129
Unit 18 The necklace 137
Unit 19 Jobs 145
Unit 20 Mainly revision 153
Unit 21 Karl Marx 161
Unit 22 Britain and Ireland 169
Unit 23 Rescuing the temple 177
Unit 24 The science of farming 185
Unit 25 At the conference 193
Unit 26 Mainly revision 200
参考答案 207