2014年6月英语六级作文真题附范文(第3套):立刻得出结论

文章衔接手法恰当；作者句法知识很棒，适当增加从句的使用，会取得更不错的成绩；作者高级词汇使用比较准确，词汇表达较丰富，但仍需增加词汇积累。

As the world is getting more and more densely populated,air pollution has become a severe problem.Air pollution mainly derives from four major human activity sectors: industry,energy,transportation and agriculture.Energies are needed to run factories,to power trains,planes and buses.Nearly all of these energies are produced by burning fuels,which would cause air pollution.Scientists are studying new ways of generating electricity that can be less damaging to the environment.The increased public environmental awareness has led to the advent of activities such as recycling.