大氣污染英語作文80字
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We live in a earth is suffering from serious air pollution. Air pollution from factories, burning garbage, automobile exhaust is the root of atmospheric pollution. Their time to affect our respiratory tract and lungs, make the incidence of respiratory system rise year by year.
When slightly polluted air, the human body by inhalation of air in the nasal cavity nose hair to remove part of the dust, again by mucus in the nasal cavity and all kinds of bronchial mucus will dust adhesion in live. Tracheal and bronchial cilia in the tens of millions of root, they swing around 12 times per second, from the bottom up like a "cleaner" push sweep the mucus in the airway, until the throat, again through the cough cough up in vitro.
When serious air pollution, the purification of the respiratory effect will be reduced, or even completely lost. In this case, the descent of the respiratory tract and lungs vulnerable to germs and suffering from various diseases.
Due to various reasons, also increase in air pollution. If you cant solve the problem of air pollution, really, Im afraid one day, human can only live with a mask.
我們生活的地球正遭受著嚴重的空氣污染。工廠排放的.廢氣、燃燒的垃圾、汽車的尾氣等都是污染大氣的禍源。它們時刻侵襲著我們的呼吸道和肺，使呼吸系統(tǒng)的發(fā)病率逐年上升。
當空氣輕微污染時，人體吸入的空氣可以由鼻腔里的鼻毛除去部分灰塵，再由鼻腔里的黏液和各類支氣管里的黏液將灰塵粘連住。氣管和支氣管內(nèi)的纖毛有幾千萬根，它們每秒約擺動12次，像“清潔工”一樣從下向上推掃呼吸道里的黏液，直至咽喉部，再通過咳嗽咳出體外。
當空氣嚴重污染時，呼吸道的凈化作用將降低，甚至完全喪失。在這種情況下，呼吸道和肺易受病菌的侵襲而患各種疾病。
由于種種原因，空氣污染還在加劇。如果不能解決空氣污染的問題，恐怕真有一天，人類只能帶著口罩生活。
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