怎样保持身体健康英语作文六年级【一】
Today smoking is a widespread habit ali over the world. Not only the old, the youth, but also middle school students have been engaged in smoking. Many of them think that smoking is a smart symbol.
However, smoking is harmful to one's health. It contributes a lot of lung cancer, from which many people have died in the past years. It can also cause many other diseases. In a word, if you smoke, you do have a much greater chance of losing your health. Furthermore, scientific research shows that smoking is not only harmful to smokers themselves, but also a threat to public health, especially to women and children. Therefore, many countries have made laws forbidding smokers to smoke m public places such as cinemas, stations, hospitals, and so on Giveup smoking! If you don't smoke, don't start. Give upsmoking for the sake of your health, for the sake of your family, and for the sake of the whole world.
当今吸烟是一个世界范围内的习惯。不仅是老人，青年，而且中学生都吸烟。他们中的许多人认为吸烟是一种潇洒的象征。
然而，吸烟有害人的健康。它会引起肺癌，其中许多人在过去的一年都死去了。它还可以造成许多其他疾病。总之，如果你吸烟，你有更大的机会失去你的健康。此外，科学研究显示，吸烟不仅对吸烟者有害，而且对公众健康构成威胁，尤其是对妇女和儿童。因此，许多国家都制定了法律禁止吸烟如电影院，车站，医院等公共场所禁止吸烟，如果你不抽烟，不要开始。戒烟吧，为了你的健康，为了你的家庭，和世界。
怎样保持身体健康英语作文六年级【二】
the sun rises in the east and sets in the west, which is caused by the rotation of the earth as you all know. but have you ever thought of the effect of the earths rotation on man and can you imagine what would happen if the earth stopped rotating?
the radius of the earth is about 6,370 kilometres. it takes the earth 24 hours to rotate once. objects on the earths equator move with the earth at a speed of 460 metres per second, and the air close to the earths surface turns at the same speed. if the earth stopped rotating suddenly, the air would keep flowing eastward at a speed of 460 metres per second. the wind would be fourteen times as powerful as a hurricane. at the same time sea water would rush eastward at a speed of several hundred metres per second, which might do damages much greater than a seaquake would do. obviously, men could hardly stand such a catastrophe.
even if such a catastrophe would not happen, there would be a great temperature difference on the two hemispheres of the earth, and the four seasons of the year would no longer occur because a day and a night would be as long as a whole year instead of 24 hours. all this would greatly affect the life of human beings, imals and plants and that would cause worse results than anything imaginable.
怎样保持身体健康英语作文六年级【三】
创无烟环境，过健康美好的生活&&是我们每个人的理想。吸烟有害健康在这个世纪流传广泛，大家都知道吸烟对我们的健康有着极大的伤害。我想，同学们的爸爸大多有吸烟这个坏习惯吧。同学们可能都想脱离这个云雾缭绕的环境吧，可我们不但没有脱离，也许还会越陷越深哪！所以，同学们都应该奉劝亲人，远离危害！
我们也常听人说饭后一支烟，快乐像神仙，可事实并非如此。吸烟的坏处就像繁星点点，数也数不完，何况很多人都爱抽烟呢。烟草里有三种危险化学物质：焦油，尼古丁和一氧化碳。焦油是由好几种物质混合成的物质，在肺中会浓缩成一种粘性物质；尼古丁是一种会使人成瘾的药物，由肺部吸收，主要是对神经系统发生作用；一氧化碳能减低红血球将氧输送到全身去的能力。其实烟也是一种毒品，只是没有那么剧烈，国家没有禁止而已。
敬爱的叔叔阿姨们，你们在抽烟时想过后果么？吸烟不仅对自己的身体造成威胁，还对你身边那些被动吸烟的人也造成了极大的危害。这一根根烟头，就像一只只毒药，徐徐的向我们逼近，给我们的生活和工作也带来了极大的威胁。假如你每天都处在烟雾中，你的身体会越来越虚弱，病魔会时时侵害你，甚至危及你的生命。可怕的是：一个每天吸15到20支香烟的人，极易患肺癌、口腔癌或喉癌致死的机率，要比不吸烟的人大14倍；极易患食道癌致死的机率比不吸烟的人大4倍；比死于膀胱癌的机率要大两倍；死于心脏病的机率也要大两倍。吸香烟是导致慢性支气管炎和肺气肿的主要原因，而慢性肺部疾病本身，也增加了得肺炎及心脏病的危险，并且吸烟也增加了高血压的危险。
听了这一句句惊心动魄的描述，你感觉到危险正向你慢慢的.逼近了吗？你体会到自己那饱受痛苦的***了么？想一想，吸烟除了带来危害，它能给予你什么？给予你家人为了你抽烟而闹得家庭不和么？所以奉劝那些有烟瘾的朋友们好好的想一想吸烟的危害，及时戒烟吧！为了防止越来越多的人吸烟，仅仅靠一个人的力量是不够的，我们大家应该团结起来，去掉这一大不良习惯和危害。
现在，我郑重的呼吁大家，放下手中的烟吧！让我们一起和家人幸福的生活，一起创造美好的未来吧！
