Unit 1 Who Is the Most Important Person from History? 1
Unit 2 What Are Fattening Rooms? 8
Unit 3 Where Do People Celebrate Girls' Day and Boy's Day? 15
Unit 4 Why Is Marco Polo Famous? 23
Unit 5 Who Reached the South Pole First? 30
Unit 6 What Is the Royal Flying Doctor Service? 37
Unit 7 How Did the Egyptians Make Mummies? 44
Unit 8 Why Is Louis Pasteur Important? 51
Unit 9 Who IS Nasreddin Hodja? 58
Self－Test 1 65
Unit 10 What Did the Ancient Mayans Believe In? 67
Unit 11 How Do Koreans Celebrate a Wedding? 75
Unit 12 Why Are Sumo Wrestlers So Fat? 82
Unit 13 Who Is Stephen King? 89
Unit 14 What Is the Story Behind the Bed? 97
Unit 15 How Did the Spanish Conquer the Aztecs? 104
Unit 16 Why Are the Williams Sisters Good at Tennis? 112
Unit 17 Where Is Timbuktu? 120
Unit 18 Where Do the Most Vegetarians Live? 128
Self－Test 2 135
Chinese Version 138
Answer Key 154