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. 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.
14.Trees are very helpful and important for us.
15.We should plant more and more trees in order to live better and more healthy in the future.
It’s everyone’s duty to love and protect the environment.
I’m Mike. I am a student in Huaxing Middle School. Do you know the plastic bags？ Do you often use the plastic bags？ I don’t like them. I think they use the wasting valuable oil their production. And they can’t decompose（分解） in a short time. The plastic bags will make our world worse. I agree with the rule， which people can’t get the free plastic bags in the shops， supermarkets. It encourages people to use their cloth bags and baskets. It’s good for our environment.
So I hope all the students in our class stop to use the plastic bags， and use our own cloth bags. I hope we can take care of our environment. Let’s make our world more and more beautiful.
2 、6月5日（ June 5）是世界环境保护日， 我们周围的环境变得越来越糟糕，污染越来越严重……假如你是学生Jone.，你校要进行“如何保护我们的环境？”专题演讲比赛。
Dear headmasters，teachers，classmates and friends：
I’m very proud that I have chosen to speak to you all today， I’m a bit（=a little） nervous as I’ve never made a speech before to so many people ，so please forgive me if it shows.