Lessons 1~2 1
Lessons 3~4 3
Lessons 5~6 4
Lessons 7~8 5
Lessons 9~10 6
Lessons 11~12 7
Lessons 13~14 9
Lessons 15~16 11
Lessons 17~18 12
Lessons 19~20 14
Lessons 21~22 16
Lessons 23~24 17
Lessons 25~26 19
Lessons 27~28 21
Lessons 29~30 23
Lessons 31~32 25
Lessons 33~34 26
Lessons 35~36 28
Lessons 37~38 30
Lessons 39~40 32
Lessons 41~42 34
Lessons 43~44 36
Lessons 45~46 38
Lessons 47~48 40
Lessons 49~50 42
Lessons 51~52 44
Lessons 53~54 46
Lessons 55~56 48
Lessons 57~58 50
Lessons 59~60 52
Lessons 61~62 54
Lessons 63~64 56
Lessons 65~66 58
Lessons 67~68 60
Lessons 69~70 62
Lessons 71~72 64
Lessons 73~74 66
Lessons 75~76 68
Lessons 77~78 70
Lessons 79~80 72
Lessons 81~82 74
Lessons 83~84 76
Lessons 85~86 78
Lessons 87~88 80
Lessons 89~90 82
Lessons 91~92 84
Lessons 93~94 86
Lessons 95~96 88
Lessons 97~98 90
Lessons 99~100 92
Lessons 101~102 94
Lessons 103~104 96
Lessons 105~106 98
Lessons 107~108 100
Lessons 109~110 102
Lessons 111~112 104
Lessons 113~114 106
Lessons 115~116 108
Lessons 117~118 110
Lessons 119~120 112
Lessons 121~122 114
Lessons 123~124 117
Lessons 125~126 119
Lessons 127~128 121
Lessons 129~130 123
Lessons 131~132 125
Lessons 133~134 127
Lessons 135~136 130
Lessons 137~138 132
Lessons139~140 134
Lessons 141~142 136
Lessons 143~144 138
参考答案及录音原文 141