Unit1 The summer holidays 1
Unit2 In the lab 8
Unit3 American English 16
Unit4 Travel 22
Unit5 Why do you do that? 30
Unit6 A new factory 36
Unit7 Earthquakes 44
Unit8 Mainly revision 50
Unit9 Computers 56
Unit10 Sports 63
Unit11 Country music 69
Unit12 English programmes 76
Unit13 Abraham Lincoln 83
Unit14 Mainly revision 88
参考答案 94