急求英语作文 ：提示“环境污染是当今世界上最大的问题,根据提示,请你用自己的话说说应该怎样保护我...

Last Sunday my father and I went fishing along a river. We found the water so dirty that we could hardly catch fish in it.
　　A lot of factories along the river always poured their waste water and rubbish straight into the river which made the river water polluted. In this way most of the fish in the river were killed.
　　If the river water all over the country is polluted like this, no living things will exist in the water. As we all know, environmental pollution does great harm to living things and human beings. Now more and more people have come to realize how serious this problem is. Our government is doing her best to take measures to fight against pollution. We expect that the water in every river will be made cleaner and cleaner before long.
Today, pollution has become a serious problem to us. It means that the air, seas, rivers and land are polluted by waste or poisonous things. It does harm not only to human beings but also to animals （It does harm to animals, as well as human beings.）.
　　We cannot have fresh air because many factories have the poisonous smoke sent into the air. Beautiful parks are made dirty by plastic tins and bags. Fish die from the polluted water. It is said that strange diseases have appeared in some places because of pollution.
　　I hope scientists can find ways to solve the serious problem. We are looking forward to seeing the clear sky, clean rivers and beautiful parks again.