前言 1
EXERCISES（练习） 1
Lesson 1 1
Lesson 2 5
Lesson 3 11
Lesson 4 15
Lesson 5 19
Lesson 6 25
Lesson 7 29
Lesson 8 33
Lesson 9 39
Lesson 10 44
Lesson 11 48
Lesson 12 52
Lesson 13 56
Lesson 14 60
Lesson 15 64
Lesson 16 68
Lesson 17 73
Lesson 18 77
Lesson 19 82
Lesson 20 86
Lesson 21 91
Lesson 22 95
Lesson 23 99
Lesson 24 104
KEY（练习答案） 112
TAPESCRIPT（听力录音材料） 140