Ⅰ．Teaching Plans 1
Unit 1 1
Unit 2 8
Unit 3 13
Unit 4 18
Unit 5 24
Unit 6 33
Unit 7 37
Unit 8 41
Ⅱ．Key to Exercises 49
Unit 1 49
Unit 2 53
Unit 3 57
Unit 4 61
Unit 5 64
Unit 6 68
Unit 7 71
Unit 8 74
Ⅲ．Chinese Translation of the Texts 78
Unit 1 78
Unit 2 81
Unit 3 85
Unit 4 88
Unit 5 91
Unit 6 94
Unit 7 97
Unit 8 100