Unit 1 1
Related Technical Terms 1
Grammar—Adverbial Clause of Time 1
Key to Exercises 3
Chinese Version of the Text 5
Unit 2 7
Related Technical Terms 7
Grammar—Adverbial Clause of Place 8
Key to Exercises 9
Chinese Version of the Text 10
Unit 3 13
Related Technical Terms 13
Grammar—Adverbial Clause of Manner 13
Key to Exercises 14
Chinese Version of the Text 16
Unit 4 18
Related Technical Terms 18
Grammar—Adverbial Clause of Concession 18
Key to Exercises 20
Chinese Version of the Text 22
Unit 5 24
Related Technical Terms 24
Grammar—Adverbial Clause of Condition 24
Key to Exercises 27
Chinese Version of the Text 28
Unit 6 30
Related Technical Terms 30
Grammar—Adverbial Clause of Reason 31
kev to Exercises 33
Chinese Version of the Text 34
Unit 7 37
Related Technical Terms 37
Grammar—Adverbial Clause of Purpose 39
Kev to Exercises 40
Chinese Version of the Text 42
Unit 8 44
Related Technical Terms 44
Grammar—Adverbial Clause of Result 45
Key to Exercises 46
Chinese Version of the Text 48
Unit 9 50
Related Technical Terms 50
Grammar—Adverbial Clause of Comparison 51
Key to Exercises 53
Chinese Version of the Text 54
Unit 10 57
Related Technical Terms 57
Grammar—Review of Adverbial Clauses 57
Kev to Exercises 59
Chinese Version of the Text 60
Unit 11 62
Related Technical Terms 62
Grammar—Subject-Verb Agreement 63
Kev to Exercises 64
Chinese Version of the Text 66
Unit 12 68
Related Technical Terms 68
Grammar—Emphatical"It" 69
Key to Exercises 72
Chinese Version of the Text 74
Unit 13 76
Related Technical Terms 76
Grammar—Inversion 77
Key to Exercises 79
Chinese Version of the Text 80
Unit 14 83
Related Technical Terms 83
Grammar—Subjunctive Mood（Ⅰ） 84
Key to Exercises 86
Chinese Version of the Text 88
Unit 15 90
Related Technical Terms 90
Grammar—Subjunctive Mood（Ⅱ） 92
Key to Exercises 94
Chinese Version of the Text 95
Unit 16 98
Related Technical Terms 98
Grammar—General Review 99
Key to Exercises 102
Chinese Version of the Text 103