Nowadays with the development of science and technology ,the quality of our life has been improved but at the same time the air quality around us is becoming worse and worse .The reasons are as the followings.First the waste gas from some factories has polluted the air around us.Second private cars are sending more and more waste gas into the air.Finaly people are cutting down trees without limit in order to build houses.So we should take immediate action to solve this serious problem.We should make all the people aware of the importance of air to us.Besides we should plant more trees to take in waste gas in the air.Finally we should appeal to some media to stop factories from putting too much waste gas into the air.I think only in this way can we have better air to breathe.隨著科學技術(shù)的發(fā)展，我們的生活質(zhì)量也提高了但與此同時我們周圍的空氣變得越來越差。原因是以下這些。首先來自工廠的廢氣污染了我們的空氣。第二是私家車排放越來越多的二氧化碳到空氣中。最后是人們對樹木的無節(jié)制的砍伐來建房屋。所以我們應(yīng)該立刻采取措施來解決這一嚴肅的問題。我們應(yīng)該讓所有人意識到空氣對我們的重要性。其次我們應(yīng)該多種樹來吸收空氣中的廢氣。最后我們應(yīng)該呼吁一些媒體來阻止工廠排放太多的廢氣。我想只有用這種方法我們才能有更好的空氣來呼吸。