Unit 1
Text A The Land 1
Dialogues Greetings and Introductions 8
1．On the Campus 8
2．Do You Know Our English Teacher? 9
Grammar Basic English Sentence Patterns 11
Text B Earth and the Sun 13
Unit 2
Text A The Balance of Nature 18
Dialogues Meeting People 25
1．A Nice Day,Isn't It? 25
2．In the Supermarket 26
Grammar Verb Tenses 1 28
Text B Why Men Have to Work 35
Unit 3
Text A Natural Resources 39
Dialogues Talking About the Weather 46
1．Don't Worry Too Much 46
2．A Class About the Weather in U.S.Cities 46
Grammar Verb Tenses 2 48
Text B How Long Can Our Minerals Last? 53
Unit 4
Text A Computers 59
Dialogues Time 65
1．Tonight's the Last Night! 65
2．Bill's Timetable 66
Grammar The Voices of Verbs 68
Text B Tools 72
Unit 5
Text A Lincoln's Autobiography 77
Dialogues Descriptions 84
1．What Is She Like? 84
2．We've Moved to a New House 86
Grammar Word Formation 87
Text B William Beebe 92
Revision 1
Vocabulary Exercises 97
Grammar Exercises 100
Reading Comprehension 102
Cloze Test 104
Translation Exercises 105
Unit 6
Text A The Market Economy 107
Dialogues Daily Activities 112
1．A Monday Morning 112
2．The Beginning of the University Days 113
Grammar Interrogative Sentences 115
Text B Consumer Rights 120
Unit 7
Text A Human Psychological Needs 125
Dialogues Study 131
1．How to Study English? 131
2．That's Great! 133
Grammar Prepositions 135
Text B Good Health Habits 143
Unit 8
Text A Goals 148
Dialogues Parties 154
1．At a Birthday Party 154
2．A Plan for the Christmas Party 155
3．Rushing to a Party 156
Grammar The Infinitive 157
Text B Priorities and Choices 165
Unit 9
Text A Non-Academic Interest 169
Dialogues Family 174
1．A Pleasant Surprise 174
2．Talking About a Coming Wedding 175
Grammar The Gerund 177
Text B Hobbies 184
Unit 10
Text A High-tech Industry 189
Dialogues Health 196
1．Finding and Seeing a Doctor 196
2．Buying Medicine 197
Grammar The Participle 199
Text B Factory Farming 206
Revision 2
Vocabulary Exercises 211
Grammar Exercises 212
Reading Comprehension 214
Cloze Test 217
Translation Exercises 218
Vocabulary 221
Phrases and Expressions 245
Proper Names 251