大学核心英语听力教程 第一级PDF电子书下载

Unit One 1

Unit Two 8

Unit Three 14

Unit Four 20

Unit Five 26

Unit Six 33

Unit Seven 40

Unit Eight　 47

Unit Nine 54

Unit Ten 61

Unit Eleven 69

Unit Twelve 76

Unit Thirteen 84

Unit Fourteen 92

Unit Fifteen 99