吸烟有害(the harm of smoking)
    if you take notice in some places, you’ll see the fact that most smokers are young people and even some are middle school students. it is said that in china the number of the people smoking is about 0.3billion. 
    why do so many people smoke? some think that smoking is pleasure, some believe that they can refresh themselves by smoking. in fact, smoking is a bad habit, which has great harm to people’ health. the study of smoking shows that many kinds of illnesses have something to do with smoking. smoking itself is a waster. it costs one so much money, besides, many fires are caused by careless smokers. today more and more people all over the world want to give up smoking. if you’re mot a smoker, don’t start.