跪求一篇environment and development的英文文章.要三百字的

1． It’s our duty to save water
As we know,water is very important to man,and we can’t live without water.There is less and less fresh water for us to drink in the world,but some people don’t care about it.They waste a lot of water in their daily life.Even worse,they pour dirty water into rivers.They throw rubbish into rivers,too.Many rivers and lakes are seriously polluted.Something must be done to stop the pollution.Only in this way can we live happily.If we don’t save water,the last drop of water will be a tear-drop of us.
2.人口问题 (The Problems of Large Population)
It is reported that the world’s population was 6 billion in the year 2,000,and it is growing faster and faster.The world’s population problem is the greatest one because it brings lots of problems,for example,fresh water is becoming less and less; more and more people are losing their jobs and so on.These problems are mainly in the developing countries because the population of all the developing countries is over four fifths of the world’s population.So China,the largest developing country,has kept the policy “one couple,one child.”
3.保护我们的城市(Saving Our City)
It is very important to deal with the rubbish in cities.Rubbish must be thrown away or reused properly,or it may cause a lot of problems.It may pollute the air and water.People may get ill when they breathe the polluted air or drink the polluted water.
Our city has started to face the problem.Some rubbish is sorted and sent to a certain place.Waste gas is cleaned before it goes into the air.Waste water is also cleaned before it is poured into rivers.
People should be stopped from throwing rubbish everywhere.We should try our best to take care of our environment and fight against pollution.
4.保卫地球(Saving the Earth)
As time goes by,man is making the earth sick.People cut down too many trees and leave rubbish everywhere.Factories let out their waste without doing anything to it.This has caused some serious problems.Such as the land is sandy; the river is dirty; the air is less clean; even the temperature of the earth is rising.What should we do to save the earth?My suggestion is that we should plant more trees,put rubbish into dustbins and stop factories pouring waste gas or water directly into the air or rivers.In all,we have only one earth,we should do our best to protect it,or we will regret in the future.
5.如何保护环境(How to Protect the Environment)
Good environment can make people feel happy and healthy.To improve the environment means to improve our life.We should plant more trees and flowers around us.We shouldn’t cut them down.We should stop factories from pouring waste water into the river and waste gas into the air.Whenever we see litter on the ground,we should pick it up and throw it into dustbins.Never spit in public.Don’t draw on public walls.It’s our duty to protect the environment.
6.关于环境保护（水资源节约）的话题
Our environment is very important for our life.We need fresh air,clean water and so on.In the past,there were many trees around us,the air was fresh and the river was clean.But now,people cut down many trees.Air pollution and water pollution are very serious.The environment around us becomes very terrible.We should protect our environment.First,we should plant many trees to keep water.Second,we can ride a bike or walk to school or work.Third,we shouldn’t pour dirty water directly into the river.Fourth,we shouldn’t use the plastic bags.Finally,we can ask more people to join us.

As all we know development is the theme of nowadays world.Every country and every person would try their best to achieve this goal.But along with the developing,a serious problem arises,that is