Unit 1 Animal Intelligence Part One Reading in Depth Passage A Interesting Facts About Ants Passage B Tool-Making and Trick-Playing of Crows Part Two Fast Reading Passage C Top Ten Most Intelligent Animals in the World Passage D Chimps--the Helping Primate Part Three Short Answer Questions Passage E Pigeon Intelligence Unit 2 Cultural Differences Part One Reading in Depth Passage A Culture Clash: Foreign Parents, American Child Rearing.. Passage B Historic Love Letter Part Two Fast Reading Passage C How English Became Englishes Passage D American Lifestyle PartThree Blanked Cloze Passage E Queuing on the Titanic Unit 3 Globalization Part One Reading in Depth Passage A In the Name of Life : Passage B The Other Side of Globalization Part Two Fast Reading Passage C American Values Passage D Science and World Peace: A Great Blessing to the Humankind Part Three Short Answer Questions Passage E How to Make Cheap International Calls Unit 4 Music and Arts Part One Reading in Depth Passage A Eyes Opened to Sound of Socks Passage B Why Cheap Music Downloads Are Getting Popular Part Two Fast Reading Passage C Robby's Piano Lessons Passage D Top Five European Art Cities PartThree Blanked Cloze Passage E How Do You Feel a Love Song Unit 5 Diet and Health Part One Reading in Depth Passage A The Surge of Chinese Food and Culture in the West Passage B Fast-Food Chains' Responsibility for Overweight Part Two Fast Reading Passage C Diet Tips for a Beautiful Female Figure Passage D Obesity Part Three Short Answer Questions Passage E Balancing Fitness and a Busy Work Schedule Unit 6 Gender Unit 7 Wealth Unit 8 Education Unit 9 Memory Unit 10 Entertainment and Recreation Key