As we can see， the world population is growing rapidly day by So enough fresh water is needed to feed such a big What’s more， with the development of industry， factories and vehicles produce poisonous gases or wastes， which consequently results in the pollution of Though fresh， a good amount of it can no longer be Only quite limited fresh water resource is available to human So it’s high time for us human beings to take quick action to protect water Stop pollution and save water， otherwise， we cannot survive on the 正如我们可以看到，世界人口正在迅速增长每天。因此，需有足够的淡水来养活如此之多人口。更重要的是，工业的发展，工厂和车辆所产生的有毒气体或废物，导致水的污染。大部分新鲜的水资源无法再被利用，只有十分有限的淡水资源能提供给人类。因此，为保护水资源，我们应迅速采取行动的时候到了，阻止污染和节约用水，否则，我们无法生存在地球上。
How to protect the environment?Nowadays， more and more people realize it`s necessary and important to protect the Also，there are some people who don`t pay attention to hygiene and they can`t stop littering the rubbish casually or spitting everywhere all the And in addition， there are a few factories often cutting down the trees， discharging chemicals and dirty water and so And it causes many problems like the Greenhouse EIf they do these day by day and our life will be harder and harder，so we have to stop To stop them we can put up commonweal advertisements and tell them the detriment of destroying the So we can start from now to make a beautiful
