水（H₂O）

水（H₂O）是由氢、氧两种元素组成的无机物，在常温常压下为无色无味的透明液体。水是最常见的物质之一，是包括人类在内所有生命生存的重要资源，也是生物体最重要的组成部分。

water

• uses
  • We use water to drink.
  • We use water to brush our teeth or to take a shower.
  • We use water to wash our dishes or our clothes.
  • Farmers use water to water the crops and vegetables on their farmes.
  • Firemen use water to put out fires.
  • Cooks use water to cook food.
  • Cleanes use water to clean the street.
• situation
  • Almost three quarters of the Earth is water.
  • There is less fresh water to drink.
  • There is a terrible problem of water problem.
  • Some people wast a lot by pouring dirty water and throw rubbish into rivers and lakes.
  • The Sea is dirter and dirter. 
• solution
  • We must protect water resources.
  • We should stop pollution water.
  • We can save water by fixing a dripping tap..
  • We can save water by not play water games.