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求一篇《青少年吸烟有害》的说明文500字？
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一、求一篇《青少年吸烟有害》的说明文500字？
抽烟在当前社会是一个极其普遍的现象，从年老的爷爷奶奶，到十多岁的青少年，他们都在不停地吸食着这慢性自杀的毒药，人们都明白一个理儿抽烟有害健康，但真正了解抽烟危害的人却寥寥无几。
不知您是否注意观察过，在每一条卷烟的外包装上都有这样几个字：吸烟有害健康。
据报道：全球每年有上百万人因患各种疾病而死亡，其中抽烟者约占25%。这绝不是一个小数目。一个仅仅长八、九厘米的慢性杀手，却这般无情。为了使这样的惨剧在下世纪不再发生，联合国制订了戒烟日，各个国家也相继制订了自己的香烟法，以控制死亡人口的增长。 （内容来自龙龙作文网 www.llzww.com 转载请注明）
抽烟不仅对抽烟者本身有危害，对身旁的人也有危害，因为抽烟喷出的烟害，被不抽烟的人吸入，照旧受害，并且比抽烟者所受的危害程度更深，叫被动吸烟。
我们在保护我们自己身体健康的同时，也要对我们所生活的环境加以保护，因为卷烟所释放的烟雾都是有毒的，含有大量二氧化碳及其它有害气体，这是公开场所空气污染的重要原因之一。所以为保护我们人类共有的家园，应当从我做起，从青少年做起，广泛深入地开展限烟、无烟宣传：为了大家的健康，请不要吸烟！
二、吸烟有害健康的英语小短文?
We all know that smoking is harmful to our health. Smoking is very dangerous. This is because cigarette's smoke contains at least two harmful substances － tar and nicotine. Tar, which forms as the tobacco burns, damages the lung and therefore affects breathing. Nicotine, which can be found in the leaves, causes the heart to beat faster and increases breathing rate. When we know this ,we should stop smoking. For your health as well as others , please don t smoke or give up smoking.
三、《吸烟有害健康》英语作文一篇
The Harm of Smoking
Smoking, which may be a pleasure for some people, is a series of discomforts for their fellows. Medicai scientists have expressed their concern about the effect of smoking on the health not only of
those who are smoking but also of those who live in the air polluted by tobacco smoke. And studies show that non-smokers suffer more than the smokers themselves.
A great number of students have joined in trying to persuade the university to forbid smoking. Smoking is not allowed in theatres, cinemas and in other public places. Therefore,smoking must be forbidden in our classrooms.
Although many people have passed away for having smoked a lot and we call on people to give up smoking, yet many more will turn down what we say every day. I think it more important to call on the smoker to use good judgment and to show concern for others.
吸烟的危害
吸烟可能对某些人来说是一件愉快的事情，但却为他们的伙伴带来一系列的不适。
医药科学家们表达了他们对烟民们和生活在被烟草污染的空气中的人们的健康受吸烟影
响的担忧。研究表明非烟民比烟民自己受到的伤害更大。
许多学生加入了试图说服学校禁止吸烟的行列。剧院、电影院和其他一些公共场合是不允许吸烟的。所以，在我们的教室中也必须禁止吸烟。
虽然许多人因为吸烟过度去世，我们呼吁人们戒烟，但仍然有更多人拒绝我们每天的劝说。我觉得呼吁烟民使用良好的判断力，显示对他人的关心更为重要。
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