目录 1
Unit One 1
Unit Two 6
Unit Three 11
Unit Four 16
Unit Five 22
Unit Six 26
Unit Seven 31
Unit Eight 35
Unit Nine 39
Unit Ten 44
Unit Eleven 49
Unit Twelve 54
Unit Thirteen 59
Unit Fourteen 64
Unit Fifteen 70
Unit Sixteen 75
Unit Seventeen 80
Unit Eighteen 85
Unit Nineteen 90
Unit Twenty 95
Unit Twenty-One 100
Unit Twenty-Two 105
Unit Twenty-Three 110
Unit Twenty-Four 115
Unit Twenty-Five 120
Unit Twenty-Six 125
Unit Twenty-Seven 130
Unit Twenty-Eight 135
Unit Twenty-Nine 140
Unit Thirty 144
听力原文与答案 149