出版說明 To the TReacher Steps for the Reader Vocabulary Words and Definitions ConceptI:Chanees Grow Out of Needs The Day the Native People Cried Nine Years from Home Two Tribes The Fussy Bees Some Very Wet Farms Life from the Sea Bring on the Rain The Magic Sticks Nation of Villages Beavers by Parachute Mountainside Farming The Bug War The Town That Saved Its Water Looking for Black Gold Clinton's Ditch A Brave Fighter Bricks of Sod The City That Grew in a Lake The King Would Not Listen The Salt March The Day King John Could Not Forget Spin-offs All Around You The Engine for Space Bea's Diner in Space The Man Who Saved the Moon Concept II:eNVIRONMENT Affects All Living Things A Virus Among Us A Refrigerator in the Ground The Strangers Not Made for Swimming The Animal That Keeps to Itself Traveler's Frend Digging to Learn Life from the Past Call a Geologist Feet Like Snowshoes The Land of Dripping Water Everglades or Neverglades! The Maching That Hatches Eggs …… Concept III:People Use the Resources at hand