英语作文描写保护环境10句简单点 急.

1。It’s our duty to save wate　　2。As we know ,water is very important to man,　　3。we can’t live without water。　　4。The amount of water which is suitable to drink is less and less。　　5。But some people don’t care about it 。　　6。Many rivers and lakes are seriously polluted。　　Something must be done to stop the pollution。　　7。Its our duty to protect our environment。　　8。It is very important to take care of our environment　　9。We should not throw litter onto the ground　　10。We should not spit in a public place/ cut down the trees