Unit 1 The Summer Holidays 1
Unit 2 In the Lab 15
Unit 3 American English 32
Unit 4 Travel 53
Unit 5 Why do You Do That？ 70
Unit 6 A New Factory 87
Unit 7 Earthquakes 101
Unit 8 Mainly Revision 116
期中测试 128
Unit 9 Computers 137
Unit 10 Sports 152
Unit 11 Country Music 171
Unit 12 English Programmes 185
Unit 13 Abraham Lincoln 199
Unit 14 Mainly Revision 213
期末测试 227
Unit 15 Healthy Eating 236
Unit 16 Fire 253
Unit 17 Nature 274
Unit 18 The Necklace 289
Unit 19 Jobs 305
Unit 20 Mainly Revision 319
期中测试 331
Unit 21 Karl Marx 340
Unit 22 Britain and Ireland 357
Unit 23 Rescuing the Temple 373
Unit 24 The Science of Farming 389
Unit 25 At the Conference 404
Unit 26 Mainly Revision 419
期末测试 437
练习与测试答案 448