2.ACID RAIN 酸雨 22
3.FLEGHTLES BIRDS 不会飞的鸟 39
4.HOUSEPLANTS 室内植物 55
5.BURGER CHEF:WHY NOT ANOTHER MCDONALD'S? 汉堡大师傅:怎么没成为第二个麦当劳? 78
6.ENDANGERED SPECIES 濒危物种 99
7.CLONING 无性繁殖 124
8.DEFENSE OF THE BODY 人体的防线 148
9.THE NONACADEMIC CURRICULUM OF THE JAPANESE PRESCHOOL 日本学前儿童的非智力教育 173
10.MEMORY 记忆 192
11.COMPUTERS TALDING TO COMPUTERS 电脑之间的交流 215
12.WASTE DISPOSAL 废物处理 239
13.FAMILIES AND CHILDREN:WHO IS RESPONSBLE? 家庭和孩子:谁来负责? 262
14.USING GENETICS FOR FOOD PRODUCTION 遗传学在食物生产中的应用 281
15.UNIDENTIFIED FLYING OBJECTS 飞碟之谜 305
16.BLOOD MEMORY—AN AUTOBIOGRAPHY BY MARTHA GRAHAM 血的回忆—玛莎·格兰姆自传 325
KEY TO THE EXERCISES 练习答案 342
VOCABULARY 词汇表 348