Ⅰ．Teaching Plans 1
Unit 1 1
Unit 2 17
Unit 3 31
Unit 4 42
Unit 5 56
Unit 6 68
Unit 7 80
Unit 8 94
Ⅱ．Key to Exercises 108
Unit 1 108
Unit 2 116
Unit 3 124
Unit 4 131
Unit 5 138
Unit 6 145
Unit 7 153
Unit 8 160
Ⅲ．Chinese Translation of the Texts 169
Unit 1 169
Unit 2 173
Unit 3 177
Unit 4 180
Unit 5 184
Unit 6 188
Unit 7 193
Unit 8 196