大学英语文选 理工科 2PDF电子书下载

Contents 1

1．Whale Watching 1

2．Spare that Spider 3

3．Training Elephants 5

4．Smoking and Health 9

5．The Periodic Table 12

6．How a Chemist Works 15

7．The Science of Matter 18

8．How Matter is Put Together 21

9．Charles Darwin to W.D.Fox 25

10．The World of Plant Life 29

11．Simple Forms of Life 33

12．Tissues,Organs and Systems 37

13．Solutions 41

14．Go to the Ant 45

15．Animals Without Backbones 49

16．Animals With Backbones 54

17．Fun With Chemistry 60

18．Bacteria 70

19．Aluminum and Copper 75

20．S.O.S.Mission for Our Plant Life 80

21．The Structure of Atoms 85

22．Giving Sharks a Good Name 90

23．The Chemist's Tools 95

24．Fibers and Plastics 110

25．Insects 118

26．When We Are Well 129

27．Radio-Carbon 152

28．Our Superintelligence 156

29．Microsurgery 160

30．There's Too Much Scare Talk About Cancer 165

31．Threatened Depletion of the Earth's Ozone Shield 170

32．Extraterrestrial Chemistry 174

33．How Did Life Begin? 181

34．Mercury and Chlorine in the Environment 186

35．This Little Monkey is Nursemaid to a Man 192

36．Breathing Polluted Air 198

37．Methane 205

38．Fantastic Voyagers:the Migrating Birds 210

39．Listen to the Bees Talking! 216

40．Electromagnetic Interference—Hazardous to Health 224

41．Photosynthesis—Miracle of the Sunbeam 230

42．Trees in Winter Windand Ice 238

43．Probing Plant Cell's Secrets—The Goal:Growing Petroleum 244

44．Our Weather 251

45．The Exquisite Mathematics ofNature 261

46．The Vanishing Prairie 268

47．Feeding All the Extra Billions:Endless Ingenuity Is Needed 277

48．Old Weather Sayings are Rational—And Here's Their Rationale 288

49．Your Own Solar System 297

50．Dreams:Do They Ever Stop?Can They See the Future? 306

总词汇表 314