Unit One Astrophysics
Text A In Search for Alien Life， Researchers Enlist Human Minds
Text B Warp Drive
Unit Two Climatology
Text A The Weekend of 100 Tornadoes: Are Killer
Storms Being Fueled by Climate Change?
Text B Experts Argue Global Warming's Impact on Sandy's Unusual Path to N.J.
Unit Three Renewable Energy
Text A Is the Future of Clean Energy a Pond
of Algae in Every Backyard?
Text B Sweet Hydrogen: How Sugar Could Help Satisfy the World's Energy Needs
Unit Four Chemistry
Text A Plant-Powered Plastics
Text B Full-Body Taste
Unit Five Medical Science
Text A Chemo in Pregnancy Does Not Necessarily
Harm Baby， Says Study
Text B Drug Trial Gives Hope of Longer Life to Women Fighting Ovarian Cancer
Unit Six Dynamics
Text A Solar-Powered Travel: Opening Up New Routes Across Sky， Sea and Land
Text B Hybrids Under the Hood
Unit Seven Paleontology
Text A Life in the Sea Found Its Fate
in a Paroxysm of Extinction
Text B An Underground Fossil Forest Offers Clueson Climate Change
Unit Eight Nanotechnology
Text A Fine-tuning Nanotech to Target Cancer
Text B Nanotechnology Can Launch a New Age ofSpace Exploration
Unit Nine Civil Engineering
Text A Prefabs Sprout as Britain Embraces
Timber-Frame Housing
Text B A Bridge Built to Sway When the Earth Shakes
Unit Ten Software Engineering
Text A Microsoft Windows 8 Consumer Preview-Review
Text B Katrina Changed Everything: New Software
Predicts How Water Will Spread
Appendix Key to Exercises
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