科技英语读本 上册PDF电子书下载

PRELIMINARY PART 1

UNIT Ⅰ 1

The English Alphabet 英语字母表 1

The Sounds in English 英语国际音标 3

Lesson One Text 5

Lesson Two Text 9

Lesson Three Text 14

Lesson Four Text 18

Lesson Five Text 24

Lesson Six Text 31

UNIT Ⅱ 41

Lesson Seven：Text：States of Matter 41

Lesson Eight Text：The Wonderful Worker— 50

Lesson Nine Text：The Sun’s Family 59

Lesson Ten Text：What Is an Alloy？ 70

Lesson Eleven Text：The TV Set 77

Lesson Twelve Text：Marie Curie 88

Lesson Thirteen Text：The Surface of the Sea 100

BASIC PART 110

UNIT Ⅲ 110

Lesson Fourteen Text：The Use of Radar 110

Lesson Fifteen Text：Coal and Oil 121

Lesson Sixteen Text：A Talk about Laser 132

UNIT Ⅳ 148

Lesson Seventeen Text：Something about Air 148

Lesson Eighteen Text：What Is a Sketch？ 160

Lesson Nineteen Text：Light 171

Lesson Twenty Text：Rock Salt 182

Lesson Twenty-One Text：Natural and Synthetic 193

Lesson Twenty-Two Text：Hot Metal 206

UNIT Ⅴ 224

Lesson Twenty-Three Text：Plastics 224

Lesson Twenty-Four Text：Sulfa Drugs 237

Lesson Twenty-Five Text：Bits of Electricity 249

Lesson Twenty-Six Text：Sound 262

Lesson Twenty-Seven Text：The First Radio Wave 278

Lesson Twenty-Eight Text：Thomas Edison’s 293

Lesson Twenty-Nine Text：Thomas Edison’s 306

Lesson Thirty Text：Air Pollution 317

Appendix 327

1．Vocabulary List 分课词汇表 327

2．Reference Materials for Pronunciation 375

3．Irregular Verbs in Book One 393

4．Materials for Free Reading自由阅读材料 396

5．Elementary Words基本词汇（供初学者用） 415

6．Answers to Exercises in Book One 431

Index Words and Phrases Used in Book One 480