1、It's everyone's duty to love and protect the environment.

　　爱护和保护环境是每个人的责任和义务。

　　2、But some people don't care about it.
但是有些人却不关心或不在意。

　　3、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。

　　4、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。

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

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

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

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

　　9、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.http://www.wyx.cc/
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。

　　10、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。

　　11、No one can live without water or air.
没有人能离开水和空气生存。

　　12、we can't live without water.
没有水我们就不能生存。

　　13、We should take many measures to stop pollution.
我们应该采取许多措施去停止污染。

　　14、Without the shade from trees, Earth would get too hot to live on.
没有了树荫，地球将会变得太热而不能生存。

　　15、Many rivers and lakes are seriously polluted.
很多河流湖泊已经受到严重污染。

　　16、As we know , water is very important to man.

　　我们知道，水对人类来说是非常的重要。

　　17、We need to protect Earth because it is our home.
我们需要保护地球因为它是我们的家。

　　18、It's our duty to save water.
节约水是我们每个人的责任。

　　19、We should plant more and more trees in order to live better and more healthy in the future.
为了将来我们的生活过得更好、更加健康我们应该种更多的树。

　　20、We don't need to do big things—we can start out small.
我们不需要做大事，我们可以从小事做起。

　　21、Let's do our best to make it more beautiful.
让我们尽力让它更美丽。

　　22、We should stop factories from producing harmful gases.
我们应该阻止工厂生产有害气体。

　　23、If we don't save water, the last drop of water will be a tear-drop of us.
如果我们不节约水，那么最后一滴水也许会是我们人类的眼泪。