《最新美国科普短文选》

CONTENTS1

1．The Sex Change of Fish1

2．Spider6

3．The Asian Cockroach11

4．The Ozone Problem15

5．The Greenhouse Effect20

6．The Treatment of Waste Water24

7．Polar Bears ard Solar Heating Systems27

8．The Utilization of Ocean Energy35

9．The Superconducting Supercollider40

10．The Effects ofthe Chernobyl Accident46

11．Space Exploration52

12．An Unusual Planet59

13．The Mars Observer64

14．The Markarian 348 Galaxy68

15．A Wonderland in the Atlantic Ocean73

16．The Temperature of the Center of the Earth77

17．The Cause of Earthquakes80

18．The Great Changes of the Surface of the Earth 　85

19．New Discoveries in Antarctica98

20．The Earliest Tools with Handles103

21．Promising Ways of Controlling Weeds106

22．Groundnuts（1）111

23．Groundnuts（2）115

24．Small Farm Grain Storage119

25．The Prediction of the World Population123

26．The Fear of AIDS126

27．The Only Effective Weapon in Fighting AIDS132

28．An AIDS-Fighting Protein137

29．An AIDS-Fighting Drug141

30．The Early Discovery of Cancer145

31．A Cancer-Fighting Protein151

32．The Proper Use of Vitamins155

33．Home Health Tests159

34．Passive Smoking164

35．Osteoporosis170

36．The Examination of the Prostate174

37．Depression177

38．Parkinson's Disease181

39．Down's Syndrome186

40．Listeriosis190