Unit 1 Biotechnology（Ⅰ） 1
Passage 1 The Magic of Microarrays 2
Passage 2 The Human Genome Business 14
Unit 2 Biotechnology（Ⅱ） 25
Passage 1 Whose Blood Is It,Anyway 26
Passage 2 The First Human Cloned Embryo 37
Unit 3 Chemical Engineering 49
Passage 1 Life's Rocky Start 50
Passage 2 Voyage to Superheavy Island 62
Unit 4 Cosmology（Ⅰ） 74
Passage 1 Searching for Extraterrestrials 75
Passage 2 Sculpting the Earth from Inside Out 87
Unit 5 Cosmology（Ⅱ） 99
Passage 1 The Fury of Space Storm 100
Passage 2 The First Star in the Universe 112
Unit 6 Aeronautics Space Travel 123
Passage 1 Go to Mars 124
Passage 2 Journey to the Farthest Planet 135
Unit 7 Information Technology Computing（Ⅰ） 146
Passage 1 Origin of Personal Computing 147
Passage 2 Vertical Leap for Microchips 158
Unit 8 Information Technology Computing（Ⅱ） 170
Passage 1 The Promise and Perils of WAP 171
Passage 2 Virtually There 182
Unit 9 Transportation Engine 193
Passage 1 Maglev:A New Approach 194
Passage 2 A Low-Pollution Engine Solution 205
Unit 10 Ecology Environment 217
Passage 1 Madagascar's Secret 218
Passage 2 Is Global Warming Harmful to Health 229
Unit 11 Nanotechnology 241
Passage 1 Little Big Science 242
Passage 2 Plenty of Room,Indeed 254
Unit 12 Vision Thought 265
Passage 1 Scientists and Religion 266
Passage 2 Darwin's Influence on Modern Thought 278