Tape 1 Side A 1
1．Women and Sense of Smell 1
2．Gates Foundation 2
3．Bird Brains 4
4．Amtrak 6
5．Economics and Health 8
6．Pollution Threatens Water Cycle 10
7．Olympics Doing Harm in Salt Lake 12
8．Tools for Life 14
Tape 1 Side B 17
9．World AIDS Day and First Genetic Copies of Human Embryo 17
10．Dead Sea Scrolls and Alzheimer's Disease 24
11．Antarctic Ice（小测验） 31
Tape 2 Side A 32
12．Soaring 32
13．Identifying Special Genes 39
14．Foods and Health 46
Tape 2 Side B 49
15．Cloning Trees 49
16．Copy Cat 56
17．Infectious Diseases（小测验） 63
附录：第七辑小测验答案 64
Tiny Transistor 64
Lying Eyes 66