good afternoon, everyone!i am very glad to have a speech here. my name is xx-x, and my major is chemistry. hu bei, jing zhou is my hometown, a famous city in the three kingdoms, and it is rich in rice and fish. i graduated from xx-x university, and now, i am studying in xx-x university. in my spare time, i often play computer games, surf on line, or travel with friends and sometimes i like being alone and doing nothing.my topic is smoking, do you smoke? yes or no? it has been estimated that smokers have made up half of the population. and the smokers are being younger and younger, even including some middle school students, both boys and girls. nowadays, more and more people have realized that smoking can do harm to their health. however, some people still enjoy smoking. why? some of them think it is very cool that they can smoke like a famous handsome actor; some people think that they will be looked more mature when smoking. the brain workers think that smoking can bring them inspiration and the sad people may relieve themselves by smoking. is the smoking really so effectively? if smoking was as good as what they say, our life would be easier just though smoking.in fact, smoking is a bad habit and it can cause a lot of diseases, such as tracheitis(气管炎), lung cancer and many other diseases. recent years, there are tens of thousands of people dying of smoking. meanwhile, smoking is a waste of money. besides, careless smokers may cause dangerous fires. smoking is bad for not only the smokers themselves, but also non-smokers. second hand smoking has been recognized harmful to other people. even worse, it may cause more damages for children and pregnant women.if you are a smoker, here are some tips can help you to reduce the harm from smoking: first, you can use a filter which can prevent most of the poisonous substance breathing into your lung, such as nicotine and tar(焦油). second, drink a cup of tea when you are smoking, because tea is able to detoxify. third, you can smoke the electronic cigarette rather than cigarette. though the electronic cigarette is not completely safety, it is less harmful for health compared with cigarette. i think the most effective way to reduce the harm is that smoke as less as you can. the less you smoke, the more health you will get, and then you will live longer.at last, considering the health of yourself and other people who you care and you care, please do not smoke!

吸烟危害演讲稿篇2

尊敬的各位老师、亲爱的同学们：

早上好！

“吸烟有害健康”在这个话题一直被人们关注着，大家都知道吸烟对我们的健康有着极大的伤害。近50多年来，世界各国特别是工业发达国家，肺癌的发病率和病死率均迅速上升，死于癌病的男性病人中肺癌已居首位。大量流行病学研究证实，吸烟是导致肺癌的首要危险因素。为了引起国际社会对烟草危害人类健康的重视，世界卫生组织建议将每年的5月31日定为世界无烟日。

香烟中的尼古丁、一氧化碳和多种其它金属化合物对人体危害很大，对青少年的影响更甚。据医学研究表明，青少年正处在生长发育时期，各生理系统、器官都尚未成熟，其对外界环境的有害因素的抵抗力比成人弱，易于吸收毒物。据调查，吸烟开始年龄与肺癌死亡率直接相关。15岁以下开始吸烟者死亡率为19.68%；20～24岁为10.08%；25岁以上为4.08%。这说明吸烟开始年龄越早，肺癌发生率与死亡率越高。同时，吸烟还会损害大脑，使思维变得迟钝，记忆力减退，影响学习和工作，使学生的学习成绩下降。心理研究结果表明，吸烟者的智力效能比不吸烟者低了10.6%。

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。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。

吸烟不仅会对自己的身体造成威胁，还会对你身边那些被动吸烟的人也造成极大的危害。

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。

现在，我郑重的呼吁大家，积极宣传吸烟有害健康的科学知识，让你的亲人、朋友放下手中的烟，形成禁烟的良好氛围，把禁烟纳入精神文明建设的轨道。

我们都要做“无烟青少年”做文明的主人！

让我们一起和家人幸福的生活，一起创造美好的未来吧！

吸烟危害演讲稿篇3

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.

翻译：

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。

吸烟危害演讲稿篇4

“why do you want to smoke?”many people often ask questions like this.in recent years,there is a general tendency to more and more children also learn to smoke.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 to chronic suicide.

it is well known that a cigarette contains many chemical substances such as tar and nicotine.burning cigarettes can produce certain poisonous substances.therefore,smoking can harm not only smokers but also non-smokers around 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 other hand,non-smokers exposed to second-hand smoke are at high risk of many health problems.

to be brief,smoking is no less than chronic suicide,which destroys the health both smokers’ and people around them.people should try their best to give up smoking,for their own health, for the family.

吸烟危害演讲稿篇5

老师们，同学们：

大家早上好!今天我要讲话的题目是《吸烟有害健康》。我们都知道香烟盒上都标有“吸烟有害健康”的字眼，但多数人还是选择了无视它，甚至对烟草趋之若鹜! 学生吸烟，在我校只是少数人的问题。但是学校却一再重拳出击，厉行禁烟，逼得少数小烟民们苦不堪言!他们三五成群，东躲西藏，和老师“打游击”，打一枪换一个地方，不怕熏，不怕黑，不怕臭。为了过一把烟瘾，他们一会儿躲进厕所，一会儿藏进街边小卖部，一会儿躲进宿舍，个别同学甚至躲到被子里。

学校为何要这般为难这些小烟民们呢?烟草究竟有多大危害呢?

世界卫生组织称烟草危害是当今世界最严重的公共卫生问题之一，人类健康所面临的最大危险因素。目前全球烟民总量已突破13亿人，每年因吸烟致死近500万人。为此，1987年11月联合国世界卫生组织建议将1988年4月7日定为第一个世界无烟日，以后固定为每年5月31日。开展这项活动，目的在于警醒世人吸烟有害健康，呼吁人们放弃烟草，为人类自己创造一个健康生存环境。

据研究，一支香烟里含尼古丁可毒死一只小白鼠，而约一包香烟中尼古丁能毒死一头牛。每天吸一包香烟，相当于吸入了50——70毫克尼古丁，如果一次性地服用了这些量，人足以被置于死地。除尼古丁外，点燃香烟时产生约5000种化合物，都是导致癌症的元凶。

世界卫生组织在发表一项声明中指出：“如今烟草已经成为全球第二大杀手。吸烟所产生的破坏比禽流感和地震还要严重。如果维持当前趋势不变，到2020年，每年将有1000万人因吸烟而过早去世。”

既然烟草有如此可怕危害，为什么有众多人吸烟呢?

分析其原因主要有两个：一烟草中所含尼古丁令人上瘾，使人对它产生依赖，不容易戒掉；另一个原因大多数人还没有把吸烟看成一个丑陋，既害人又害己的恶习。相反，认为这是一件很有派头，很潇洒的事情。因此，吸烟人群像滚雪球一样越滚越大，人们对它依赖也越来越强。

我国是世界上最大香烟生产国，也是最大香烟消费国。全世界三分之一以上香烟由中国人一口一口吸掉。而在我国烟民中，青少年又占了很大一部分。对青少年来说，吸烟危害远比想象中大得多，不仅会导致很多疾病，还会影响骨骼生长发育。这是因为青少年正处于身体迅速成长发育阶段，身体各器官系统还没有发育成熟，对各种有毒物质抵抗力不强，受烟雾毒害也就更深，甚至可以导致早衰，早亡。吸烟还可能使青少年养成不良生活习惯，诱发不良行为，甚至引发犯罪。

为了我们自己的健康，我们呼吁，全体同学都要自觉地远离香烟，并劝说吸烟亲友尽量戒烟。毕竟，香烟对我们有害无益；毕竟，没有烟雾空气会更加清新，没有烟草生命会更加绚烂!我的讲话完毕，谢谢大家!

吸烟危害演讲稿篇6

smoking is a bad habit that does harm to smoker and others. many kinds of diseases and cancers are caused by smoking, such as tracheitis, lung cancer and many other diseases.

recent years, there are tens of thousands of people dying of smoking. but there still are many people enjoying smoking, because they think smoking is a kind of fashion and smoking is so cool, especially among teenagers.

in addition, smoking does harm to others as well. second hand smoking has been recognized harmful to other people.

even worse, it may cause more damages.

therefore, people should remember that smoking is harmful to others and those people who smokes should give up smoking as soon as possible.

翻译：

吸烟是个坏习惯，它对吸烟者和别人都有害。很多疾病和癌症是有吸烟引起的，比如说气管炎，肺癌还有很多其他疾病。近年来，成千上万的人死于吸烟。但是仍然有很多人喜欢吸烟，因为他们认为吸烟是一种时尚，很酷，特别是青少年。

另外，吸烟也会对别人有害。二手烟是公认的对别人有害的。更糟糕的是，它会带来更多伤害。因此，人们应该牢记吸烟有害他人，那些吸烟的人应该尽可能戒烟。

吸烟危害演讲稿篇7

do you have a habit of smoking?anyone here?and that’s our topic today-smoking is bad for your health. the data based on the centers for disease control and prevention, cigarette contains more than 4,000 chemicals, as well as more than 250 kinds of toxic or carcinogenic. i will be in three parts of the contents, first to talk about the dangers of smoking, followed by talking about why so many people smoke, and finally some advice to quit.

smoking is bad for your health---no kidding we will agree with that. according to the world health organization, 1/4 of the lung cancer patients in industrially developed countries, 90% are smokers; those who were died of bronchitis, smokers accounted for 75%; and in myocardial infarction smokers accounted for 25%.

now smoking does so much harm on their own or others, why do so many people still smoke a lot? first, it is a long-established habit for many people, they could not escape in a short time.second, a necessary for social intercourse. third, a lot of smokers have less sense of the seriousness of the consequences of smoking.

there are various methods to quit smoking, and it varies from person to person. first, please have confidence and determination.secondly, make out plans to reduce the number of daily smoking. how about the cravings coming back? you can take activities to distract, like a deep breath, drinking tea, eating snacks and so on.

to sum up, what we talk above are about the dangers of smoking, the reason some people smoke, and finally some suggestions about cessation. that’s all, thank you.

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