这里严禁吸烟作文450字【一】
吸烟所带来伤害和疾病有些是致命的，像肺癌和一些其他呼吸道疾病。
烟里面有尼古丁，还含有焦油等有害物质。另外，烟的另一个坏处就是，如果吸上了就很难戒掉。我爸爸就是一个典型的例子。
我爸爸自从吸上烟后，就从来没有停过，一天起码可以抽一包烟，我曾多次劝告他戒烟，但都没有效果。
由此可见，吸烟对人的危害有多大，所以每个大人都不应该吸烟。
这里严禁吸烟作文450字【二】
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。
这里严禁吸烟作文450字【三】
There are many students smoking in senior high school, the reason may be that they think they look cool or appear to be more mature while having a cigarette at hand.But there are a lot of reasons not to smoke. Smoking does harm to our health.It is dangerous to our heart and lung. A lot of diseases are caused by cigarettes.Cigarettes also have terrible smell.The seconghand smoke can also be dangerous to the others who stand around you. Therefore, no smoking in public is a strict regulation in many countries. And the most important thing is that once you come into addicitive,it's hard to get rid of it. So,we must keep far from the cigarette——for everybody's health.
高中里有很多学生吸烟，原因可能是他们觉得手中有一支烟看上去很酷或者显得更成熟。但是，不吸烟的原因有很多。吸烟有害我们的健康，对我们的心脏和肺很危险。很多疾病都是由香烟引起的，而且烟的味道不好闻。二手烟对周围的.人也很危险。因此，公共场所禁止吸烟是很多国家的一项严厉规定。最重要的是，一旦你上瘾了就很难戒掉了。所以，为了每个人的健康，我们必须远离香烟。
