Contents 1
Lesson 1．Mr.,Mrs.,Miss,and Ms 1
Lesson 2．Weather Maps（1） 5
Lesson 3．Weather Maps（2） 9
Lesson 4．The Moon（1） 14
Lesson 5．The Moon（2） 18
Lesson 6．Money of the Future 23
Lesson 7．Magellan s Expedition 27
Lesson 8．Sailing Round the World 32
Lesson 9．A Letter 37
Lesson 10．Back to the Bike 42
Lesson 11．A Bike in Every Port 46
Lesson 12．The Falling of an Oil-Painting 51
Lesson 13．When Were You Born? 56
Lesson 14．The Secret of a Long Life 61
Lesson 15．The Pleasures of Picnics 66
Lesson 16．Bus Travel Then and Now 71
Lesson 17．Exploring the Ocean Depths 76
Lesson 18．The Tai Mahal 82
Lesson 19．The United Nations Buildings 87
Lesson 20．The Great Pyramid 93
Lesson 21．What Is a Map? 100
Lesson 22．Living in the Middle Latitude 105
Lesson 23．Exploring the Polar Regions 110
Lesson 24．An Astonishing Scene 115
Lesson 25．The Earthquake 120
Lesson 26．The Foolish Optimism of Youth 125
Lesson 27．Reading Readiness 130
Lesson 28．Modern Sun Worshippers 135
Lesson 29．That Rare and Valuable Thing,Gold 142
Lesson 30．Beethoven 147
Appendix Ⅰ Phrases and Expressions 153
Appendix Ⅱ Proper Names 159
Appendix Ⅲ Vocabulary 166