Features (導(dǎo)讀) A Lack of Water (缺水) H2O (H2O) Waiting for Rain (等待雨水) Safe to Drink (安全飲用) Dirty Water (臟水) Every Drop Counts (滴滴珍貴) Water for Agriculture (農(nóng)業(yè)用水) Sharing Water Resources (分享水資源) The Great Lakes (五大湖) Water and Industry (水與工業(yè)) Wetland Ecosystems (濕地生態(tài)系統(tǒng)) Water Wise or Wasteful? (合理用水還是污染浪費(fèi)?) Glossary (詞匯表) Index (索引) Review & Activities (活動(dòng)手冊(cè))