Unit 1 Waking Up from the American Dream 1
Unit 2 Move Over,Big Brother 7
Unit 3 The Rise of the Green Building 12
Unit 4 A Speech at Tsinghua University 19
Unit 5 Impressions of America 27
Unit 6 At What Cost Beauty 33
Unit 7 Original Thinker 40
Unit 8 First Snow 46
Revision:Self-assessment Test Ⅰ 51
Unit 9 When the Brain Says,"Don't Get Too Close" 53
Unit 10 How to Live and Love in the 21st Century 59
Unit 11 Your Next Computer 65
Unit 12 Stem-cell Rebels 75
Unit 13 The New Science of Happiness 83
Unit 14 Deadly and Yet Necessary,Quakes Renew the Planet 91
Unit 15 An Ode to Failure 99
Unit 16 Condi on the Rise 106
Revision:Self-assessment Test Ⅱ 117