吐痰的坏习惯应该被禁止的英语四级作文

吐痰的坏习惯应该被禁止的英语四级作文

Spitting will cause serious health problems. Since the droplets is the main route of transmission of a lot of bacteria, so spitting behavior is very healthy. For people suffering from respiratory diseases, the greater spitting harm. These patients sputum contains a lot of bacteria, viruses, Mycoplasma pulmonis, fungi, and parasites. Carried by the bacteria staphylococcus, streptococcus, Klebsiella pneumoniae, Pseudomonas aeruginosa, Mycobacterium tuberculosis. These germs are likely to threaten people's lives. There are reports that "SARS" patient drop sputum, possession of hundreds of millions of bacteria. These patients sputum bacteria spread into th... These germs are likely to threaten people' patient drop sputum, fungi. These patients sputum bacteria spread into the air, Mycobacterium tuberculosis, streptococcus, viruses. In some places, possession of hundreds of millions of bacteria, Mycoplasma pulmonis. For people suffering from respiratory diseases. There are reports that &quot, the greater spitting harm, Klebsiella pneumoniae. Carried by the bacteria staphylococcus;s lives, like spitting and defecating and urinating repulsiveness. It can easily lead to a number of people infected;SARS&quot, so spitting behavior is very healthy. Spitting is considered extremely uncivilized behaviorSpitting will cause serious health problems, and parasites. Since the droplets is the main route of transmission of a lot of bacteria. These patients sputum contains a lot of bacteria, Pseudomonas aeruginosa, will float in the air for several hours

in the streets, in public rest-rooms, we can frequently find the marks of sputum. they are from some cool people’s casual spitting. these people not only spit casually in the streets, but also do it in the dressingrooms, office rooms or meeting rooms. it seems that they are not restricted by any people or any rules, and they do not care whether it violates the social morality or not.now, china is advocating the social morality construction. but casual spitting strongly violates the social morality and will influence our international image. no matter it is in the cities or in the country, this kind of bad behavior should be completely stopped. and good habits should be fostered from childhood. so, in order to protect chinas international image and keep us healthy, please do not spit casually!

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