吸烟的危害英语演讲稿（精选3篇）
“Why do you want to smoke?”Many people often ask questions like this.Inrecent years,there is a general tendency to more and more children also learn tosmoke.They don't know the dangers of smoking,just think that smoking is cool,it's a trend.From the picture,we can come to a conclusion,smoking is equal tochronic suicide.
It is well known that a cigarette contains many chemical substances such astar and nicotine.Burning cigarettes can produce certain poisonoussubstances.Therefore,smoking can harm not only smokers but also non-smokersaround them.On the one hand,the hazardous chemicals will do harm to smokers’lung cells and blood circulation,which can shorten their lifespan.On the otherhand,non-smokers exposed to second-hand smoke are at high risk of many healthproblems.
To be brief,smoking is no less than chronic suicide,which destroys thehealth both smokers’ and people around them.People should try their best to giveup smoking,for their own health, for the family.
Smoking is very popular among Chinese people. Nowadays, the number ofsmokers during teenagers is increasing. Some treat smoking as fashion and followsuch bad behavior. Though many people have been educated the danger of smoking,they still do not fear it.
吸烟很受中国人的欢迎。如今，青少年吸烟者的数量与日俱增。有些人把吸烟当作时尚，追逐这样的不良行为。尽管许多人都被教育过吸烟的危害，但是他们并没因此而却步。
It is known to all that cancer has been the killer and the researches foundthat smoking for a long time will be easy to get cancer. I remembered myhometown, where people smoked a lot, especially the old generation, and theyformed this bad act when they were young. Then for a time, many people died ofcancer. People started to worry and they found that these people were heavysmokers.
众所周知，癌症是人类头号杀手，而且研究发现，长时间吸烟很容易患上癌症。我记得在我的家乡，吸烟的人很多，特别是老一辈，他们在他们年轻的时候就养成了这个习惯。然后有一段时间，很多人死于癌症。人们就开始担心了，后面他们发现这些人都是重度吸烟者。
The sad thing is that many teenagers smoke at their young age, and theyfeel cool to do it. Some adults smoke to relieve their pressure. No matter whatkind of reasons, the fact is that smoking not only hurt themselves, but alsohurt other people, because we know that second hand smoke is harmful, too. Foreverybody’s health and to live a better life, smoking should be stopped.
可悲的是，许多青少年在年轻的时候就吸烟，他们还觉得很酷。一些成年人用吸烟来缓解他们的压力。不管出于什么样的原因，事实是，吸烟不仅伤害自己，还伤害了别人，因为我们都知道二手烟也是有害的。为了每个人的健康以及生活得更美好，我们应该停止吸烟。
大家下午好!
"清洁空气，拒吸二手烟"是21世纪的第一个"世界无烟日"的主题，值得令人深思。
二手烟，也称为环境烟草烟，也就是指吸烟的人所呼出的气体和香烟本身燃烧时的烟雾的俗称。二手烟中包含4000多种物质，其中包括40多种致癌物质，吸进体内，亦可能和氡气的衰变产物混合一起，对人体健康造成更大的伤害。美国最新一份研究报告指出,被动吸烟即吸"二手烟"比原先外界所知道的还要危险,在吸烟者吐出来的烟雾中，烟焦油和烟碱的含量，比吸烟者本人吸入的有害物质多出1-50倍。
"二手烟"危害猛于虎。据统计，目前我国被动吸烟的人数已经达到6亿人。其中有2亿人为未成年人。他们尽管自己不吸烟，但却无奈地吸入别人吐出来的、夹有大量卷烟毒性物质的空气。
有人认为只要通风好，在室内吸烟，对别人没什么影响。这种观点是错误的。烟草烟雾是发散、滞留在墙壁、沙发、地毯、家具的有害微粒(可吸入颗粒物)，它包含有重金属、致癌物、放射物质，吸烟者的衣服、皮肤、头发也都有残留。这些可吸入颗粒物可滞留数小时、数天甚至数月，不会随风而散。所以，单纯的开窗通风是没用的。所以请每一位吸烟者，请不要在别人面前吸烟，每一位不吸烟者都要有勇气和责任向吸烟者说：请到室外吸烟。
被动吸烟是一个重大的公共卫生问题，在我们的校园，有个别学生躲在厕所、寝室等地方偷着吸烟的现象也时有发现。学校为大家着想也对这些同学进行了批评教育。希望吸烟的同学到吸烟区吸烟，最好是努力战胜自己，早日戒烟成功。同时也希望大家引以为鉴，杜绝吸烟。
从全球范围看，公共场所禁烟时代已经悄然来临。截至20__年5月底，《烟草控制框架公约》缔约方共有147个国家，占世界总人口的80%左右。20__年1月9日，此公约在我国也已正式生效，20__年，我国已经对公众提供防止接触烟草烟雾的普遍保护。未来，"无烟城市"的打造会让我们生活的环境更加健康。
作为新时代的大学生。我们要时刻警惕吸烟的危害，坚决拒绝吸第一支烟，坚决拒绝吸二手烟，切实做好禁烟的宣传者和实践者，为把我校建设成为无烟学校、和谐校园而努力!