Unit 1 Panoramic View of the USA
　Text A General Characteristics of the USA
　Text B Major Regions of the USA
　Text C The Face of the Land
　Text D The Rivers
Unit 2 View of the Northeast
　Text A The "Melting Pot"
　Text B New England
　Text C Mid-Atlantic
Unit 3 Landform of the Northeast
　Text A Lakes, Rivers, Falls and Mountains
　Text B The Coastal Plains
　Test C Cape Cod
　Text D More about Cape Cod
Unit 4 Coastal Cities in the Northeast
　Text A Development of the Coastal Citrus
　Text B Boston
　Text C Philadelphia
Unit 5 Imporlanl Centers of the USA in the Northeast
　Text A The Capital City
　Text B The Nation's Most Cosmopolitan City
　Text C Economy of Washington, D.C.　
　Text D Broadway
Unit 6 Land of Changes in the Southeast
　Text A The Southeast and Its Problems
　Text B Economy of the Southeast
　Text C Population of the Southeast
　Text D The Top in the Southeast
Unit 7 Touring the Sontheast
　Text A The Mighty Mississippi River and the Ozarks
　Text B Rolling Hills, Flat Plains and Islands
　Text C The Rivers of Grass
　Text D Memphis
Unit 8 View of the Midwest
　Text A Physical Features of the Midwest
　Text B Lakes, Plains, Big Rivers, Badlands and Caves
　Text C Mount Rushmore National Memorial
Unit 9 More about the Midwest
　Text A Settlement on the Plains
　Text B The Past and Present of the Midwest
　Text C Belts in the Midwest
Unit 10 The Southwestern States
　Text A The Four Southwestern States
　Text B Santa Fe, the City Different
　Text C Culture of the American Southwest
Unit 11 Landform of the Southwest
　Text A Desert, Canyon, Plateau, Rivers, and Plains
　Text B Drought in the Southwest
　Text C Changes on the Ranch
Unit 12 View of the West
　Text A The Rocky Mountains, Clear Rivers and Salty Lakes
　Text B Hottest, Driest, and Highest
　Text C Bear River Course
　Text D What Is the Great Basin?
Unit 13 Temples of Nature and Cities of the Pacific
　Text A The Temples of Nature
　Text B Cities of the Pacific
　Text C Yellowstone National Park
　Text D City by the Bay and the Emerald City
Unit 14 Newest States
  Text A Alaska
  Text B Hawaii
  Text C Hawaii, a Time Travel Dream
Unit 15 Review: Regions of the USA
  Text A New England, Mid-Atlantic, Southeast and Midwest
  Text B The Southwest
  Text C The West
Appendixes
  Appendix 1 Map of the USA Major Landforms
  Appendix 2 Map of the USA States
  Appendix 3 USA State Flags
  Appendix 4 State Capitals, Largest Cities and Name Origins
  Appendix 5 Fifty States, Nick Names and Fun Facts
  Appendix 6 States by Order of Entry into Union
  Appendix 7 State Birds and State Flowers
  Appendix 8 State Areas
  Appendix 9 参考答案
  Appendixes 10 重点参考书目和网站