Abbreviations and Symbols 缩写与符号 1
Lesson 1 1
Text My First Day at University 1
Preface 前言 1
Conversation Introductions 7
Word Study Do 8
Grammar 1．词类 10
2．按词在句中的作用识别词类 11
4．名词的种类 12
3．陈述句 12
5．可数名词和不可数名词 13
Supplementary Reading My Daily Life 17
Lesson 2 21
Text The First Science 21
Conversation Departments in Our College 29
Word Study At 31
Grammar 1．名词的复数 33
2．名词的不规则复数 35
3．外来语名词的复数 36
4．名词的所有格 37
Supplementary Reading Agriculture 42
Lesson 3 45
Text A Fish Farm 45
Convorsation Visit to a Fish Farm 50
Word Study Grow 52
Grammar 1．句子成分 53
Supplementary Reading The Young of Fishes 53
2．介词短语 59
Text The Biggest and the Gentlest 65
Lesson 4 65
Conversation Farm Animals 71
Word Study Send 73
Grammar 1．动词的种类 74
2．基本句型 78
Supplementary Reading Largest and one of te Smartest 83
Review Exercises（Lesson1-Lesson 4） 86
Lesson 5 90
Text The Seasons 90
Conversation The Weather and Crops 98
Word Study Prom 100
Grammar 1．动词的基本形式 102
2．动词的时态 104
3．一般现在时 105
4．被动语态 106
Supplementary Reading The Year 111
Lesson 6 115
Text How Women Changed History 115
Conversation Women s day-march 8 th 119
Word Study A（1） 122
Grammar 1．一般过去时 124
2．一般过去时的被动语态 125
3．Used To（Do Sth．） 125
4．疑问句 126
Supplementary Reading Early Farming 134
Lesson 7 137
Text Computer-A New Aid to Farming 137
Conversation The Tape Recorder 145
Word Study Keep 148
Grammar 1．一般将来时 151
2．Shall和Will的其它用法 152
3．一般将来时的被动语态和含有情态动词的被动语态 153
4．Be Going To的现在形式表示不久的将来 153
Supplementary Reading Future Improvements in Farming 158
Lesson 8 161
Text Eating the Sun 161
Conversation Folk Songs 165
Word Study Come 167
Grammar 1．现在进行时 169
2．现在进行时的被动语态 170
3．不用于进行时态的动词 170
4．现在进行时和一般现在时的比较 172
5．代词的分类 173
6．反身代词 173
Supplementary Reading （A）Life and the Sun 179
（B）Getting Ready for School 179
Lesson 9 182
Text Two Stories 182
Conversation Television 191
Word Study One 193
Grammar 1．过去进行时 195
2．过去进行时的被动语态 196
3．祈使句 197
4．感叹句 198
Supplementary Reading （A）The Flower Vendor 202
（B）A Most Unusual Hobby 202
Text Vacation Plans 206
Lesson 10 206
Word Study All 215
Grammar 1．将来进行时 217
2．情态动词Can，May和Must 218
3．Have To 220
4．Be Able To 221
Supplementary Reading What Will You Be Doing？ 226
Review Exercises（Lesson 5一Lesson 10） 227
Lesson 11 232
Text The Balance of Nature 232
Conversation At an Exhibition 238
Word Study A（2） 240
Grammar 1．现在完成时 241
2．现在完成时的被动语态 243
3．现在完成时和一般过去时的比较 244
4．情态动词Should， Would和Ought（To） 245
Supplementary Reading Ecology 252
Lesson 12 256
Text Trying to Please Everybody 256
Conversation A TV Program 264
Word Study Get 266
Grammar 1．过去完成时 269
2．过去完成时的被动语态 270
3．一般过去时和过去完成时 271
4．表意动词兼情态动词 Need 271
5．表意动词兼情态动词 Dare 272
Supplementary Reading The Ant and the Grasshopper 277
Lesson 13 279
Text The Future Use of Water in Agriculture 279
Conversation A Big Problem 288
Word Study Set 289
Grammar 1．将来完成时 291
2．将来完成时的被动语态 292
3．情态动词+Have+过去分词 292
Supplementary Reading Life in the Future 301
Lesson 14 304
Text Geneties Serves Mankind 304
Conversation A Short Talk About Introducing New Agricultural Technology 313
Word Study Put 314
Grammar 1．现在完成进行时 316
2．现在完成时和现在完成进行时的比较 317
3．形容词的分类 318
4．形容词和形容词短语的位置 319
5．冠词的种类和用法 320
Supplementary Reading Gregor Mendel and His Contributions 327
Lesson 15 330
Text The Experiment That Failed 330
Conversation About Experiments 337
Word Study Have 339
Grammar 1．过去完成进行时 341
2．不定代词One的用法 342
3．不使用冠词的情况 342
Supplementary Reading （A）Biological Experiments 348
（B）The International Rice Institute 349
Lesson 16 352
Text Visit to a Subutba？ Village 352
Conversation Homework and Assignments 360
Word Study Make 362
2．成语动词 365
Grammar 1．将来完成进行时 365
2．There Be句型 367
3．时态和语态总表 369
Supplementary Reading （A）The Skillful Farmer 375
（B）After the Fire 375
Review Exercises（Lesson 11-Lesson 16） 378
Appendices 附录 382
1．A List of Classified Irregular Verbs 不规则动词分类表 382
2．Index 索引 389
3．Vocabulary词汇表 402