目录Unit 1 The Summer Holidays 1
Unit 2 In the Lab 18
Unit 3 American English 35
Unit 4 Travel 49
Unit 5 Why Do You Do That？ 62
Unit 6 A New Factory 76
Unit 7 Earthquakes 92
Unit 8 Main Revision 105
Unit 9 Computers 119
Unit 10 Sports 136
Unit 11 Country Music 150
Unit 12 English Programmes 164
Unit 13 Abraham Lincoln 179
Unit 14 Main Revision 192
Unit 15 Healthy Eating 206
Unit 16 Fire！ 220
Unit 17 Nature 236
Unit 18 The Necklace 251
Unit 19 Jobs 266
Unit 20 Main Revision 281
Unit 21 Karl Marx 298
Unit 22 Britain and Ireland 314
Unit 23 Rescuing the Temple 329
Unit 24 The Science of Farming 344
Unit 25 At the Conference 357
Unit 26 Main Revision 374