2016年12月大学英语四级作文热门话题：吸烟的危害

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　　2016年12月大学英语四级作文热门话题：吸烟的危害
        　　“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.