农科综合英语PDF电子书下载

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