大学英语循序渐进练听力 中级篇PDF电子书下载

Unit One Mass Media 1

Unit Two Advertisement 6

Unit Three Internet 12

Unit Four Security 16

Unit Five New Technology 20

Unit Six The World Cup 25

Unit Seven Celebrities 31

Unit Eight Men and Women 36

Unit Nine Energy 40

Unit Ten Environment 45

Key 51

Transcripts 66