Unit 1 An American Renaissance in the Next Century 1
Unit 2 World Food and Natural Resources Outlook in Next Century 41
Unit 3 New Developments for an Information-Oriented society 52
Unit 4 The Tasty Tomato and Other Future Marvels 65
Unit 5 China' s Food 78
Unit 6 Science Education for a New Age and University of the 21st Century 98
Unit 7 The Second Information Revolution 114
Unit 8 Eat More,Weigh Less,Feel Great 126
Unit 9 The Men and the Earth Where to Go 138
Unit 10 Simple Ways You Can Help Save the Earth 149
Unit 11 Acid Rain—An Unwelcome Export 159
Unit 12 Ecology and Its Scope 172
Unit 13 Genetics and Genetic Engineering 184
Unit 14 The Scienc That imitates Natural Mechanism 197
Unit 15 Cryogenics—Not a Common Cold 212
Unit 16 What Are Computers 226
Unit 17 Laser 242
Unit 18 Next to Oxygen 254
Unit 19 Atmosophere Science 265
Unit 20 Oceanographers and Their Works 278
Unit 21 Man Searches for Life in Space 292
Unit 22 Mechanization and Aotomation 307
Unit 23 High-Tech Environmentalism 321
Unit 24 Developing Animal Resources 335
Unit 25 Tree Planting Practices for Arid Zones 347
Unit 26 Growing By Leaps and Triangles 358
Unit 27 General Agreement and Tariffs and Trade 372
Unit 28 The Cash- Free Society 384
Unit 29 Applying Management science 394