课文辅导 1
UNIT 1 1
UNIT 2 9
UNIT 3 18
UNIT 4 24
UNIT 5 31
UNIT 6 41
UNIT 7 51
UNIT 8 60
UNIT 9 69
UNIT 10 77
UNIT 11 86
UNIT 12 96
课文译文 104
UNIT 1 104
UNIT 2 108
UNIT 3 112
UNIT 4 115
UNIT 5 119
UNIT 6 122
UNIT 7 126
UNIT 8 129
UNIT 9 133
UNIT 10 136
UNIT 11 140
UNIT 12 144