1. It’s our duty to save water
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. It's 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
11. We should plant more flowers and trees。
12. We must pick up some rubbish and throw it into a dustbin
13. If everyone makes contribution to protecting the environment, the world will become much more beautiful。
15. Trees are very helpful and important for us.
17.We should plant more and more trees in order to live better and healthier in the future. It’s everyone’s duty to love and protect the environment.