Air　　The air surrounding us is important to everyone. Without air, we could not exist. Everyone understands that. But air is ecessary in many other ways-- ways that are not always so obvious or widely known.　　For example, if we did not have air, there would be no sound, because sound travels through air. Without air there would be no fire. There would be no automobiles, since motors need air in order to operate.　　Without air, there would be no wind or clouds. There will be no weather. The night time would be very cold and the day time very hot. We woud be forced to seek shelter from the sun, as there would be no atmosphere to protect us from the suns deadly rays.　　The atmosphere is all the air surrounding the earth. Atmospheric pressure is the weight of all the air against the surface of the earth. Many things on earth can not do without atmospheric pressure, as everyone knows. I wont give further examples.　　In one word, we can not live without air.　　空氣的重要性人人皆知，但它是怎么個重要法，并不是每個人都清楚，本文具體講述了空氣在人們不大注意方面的重要性。語句簡潔、流暢。由于篇幅所限，結(jié)尾有些倉促。　　空 氣　　我們周圍的空氣對大家都很重要。沒有空氣，我們就無法生存。每個人都明白這一點。但是在很多其他方面那些不大明顯或不大為人所知的方面，空氣也是必不可少的。　　比如，沒有空氣就沒有聲音，因為聲音是通過空氣傳送的。沒有空氣也就沒有火，也就沒有汽車，因為汽車發(fā)動機需要空氣來運轉(zhuǎn)。　　沒有空氣就沒有風，沒有云，沒有天氣。夜晚會非常冷，白晝會非常熱。我們會被迫尋找地方躲避陽光，因為沒有大氣層保護我們不受致命光束的侵害。　　大氣就是環(huán)繞地球的空氣。大氣壓則是所有空氣對地球表面形成的重量。正如大家所知道的，地球上許多事情離開氣壓就無法實現(xiàn)。在此不再枚舉。　　一句話，離開空氣，我們就無法生活。

　　Air　　The air surrounding us is important to everyone. Without air, we could not exist. Everyone understands that. But air is ecessary in many other ways-- ways that are not always so obvious or widely known.　　For example, if we did not have air, there would be no sound, because sound travels through air. Without air there would be no fire. There would be no automobiles, since motors need air in order to operate.　　Without air, there would be no wind or clouds. There will be no weather. The night time would be very cold and the day time very hot. We woud be forced to seek shelter from the sun, as there would be no atmosphere to protect us from the suns deadly rays.　　The atmosphere is all the air surrounding the earth. Atmospheric pressure is the weight of all the air against the surface of the earth. Many things on earth can not do without atmospheric pressure, as everyone knows. I wont give further examples.　　In one word, we can not live without air.　　空氣的重要性人人皆知，但它是怎么個重要法，并不是每個人都清楚，本文具體講述了空氣在人們不大注意方面的重要性。語句簡潔、流暢。由于篇幅所限，結(jié)尾有些倉促。　　空 氣　　我們周圍的空氣對大家都很重要。沒有空氣，我們就無法生存。每個人都明白這一點。但是在很多其他方面那些不大明顯或不大為人所知的方面，空氣也是必不可少的。　　比如，沒有空氣就沒有聲音，因為聲音是通過空氣傳送的。沒有空氣也就沒有火，也就沒有汽車，因為汽車發(fā)動機需要空氣來運轉(zhuǎn)。　　沒有空氣就沒有風，沒有云，沒有天氣。夜晚會非常冷，白晝會非常熱。我們會被迫尋找地方躲避陽光，因為沒有大氣層保護我們不受致命光束的侵害。　　大氣就是環(huán)繞地球的空氣。大氣壓則是所有空氣對地球表面形成的重量。正如大家所知道的，地球上許多事情離開氣壓就無法實現(xiàn)。在此不再枚舉。　　一句話，離開空氣，我們就無法生活。