Unit1 In the Library 1
Unit2 Water Sports 8
Unit3 Make Our World More Beautiful 15
Unit4 Travel 22
Unit5 Have a Good Time 29
Unit6 Mainly Revision 38
Unit7 A Man Who Never Gave UP 45
Unit8 Merry Christmas! 52
Unit9 What Is It Made Of？ 61
期末测试题 70
参考答案 78