Its everyones duty to love and protect the environment.爱护和保护环境是每个人的责任和义务。

But some people dont care about it.但是有些人却不关心或不在意。

The most important question in the world today is pollution.当今世界最重要的话题就是污染问题。

The amount of water which is suitable to drink is less and less.适合人类喝的水是越来越少了。

Even worse, they pour dirty water in to rivers.更糟糕的是他们排放污水到河流里。

They waste a lot of water in their daily life.日常生活中他们浪费很多水。

Something must be done to stop the pollution.人类必须采取一些措施来制止污染。

They throw rubbish into rivers , too.他们还乱扔垃圾到河流理去。

Do not throw rubbish onto the ground. Do not waste water. Use both sides of paper when you write. Stop using plastic bags for shopping. Make classrooms less noisy.不要在地上扔垃圾。不要浪费水。当你写字时要在纸的两面都要写。停止使用塑料袋去购物。减少教室里德吵闹声。

Planting trees Trees are very helpful and important for us.树对我们人类是多么的重要和有用。