Unit 1 The Summer Holidays 1
Unit 2 In the Lab 15
Unit 3 American English 32
Unit 4 Travel 47
Unit 5 Why Do You Do That? 59
Unit 6 A New Factory 73
Unit 7 Earthquakes 85
Unit 8 Mainly Revision 96
期中达标检测试题 109
Unit 9 Computers 116
Unit 10 Sports 128
Unit 11 Country Music 137
Unit 12 English Programmes 150
Unit 13 Abraham Lincoln 165
Unit 14 Mainly Revision 179
期末达标检测试题 193
语法专项练习 200
参考答案 220