题目内容
吸烟有害健康，现在越来越多的人加入了戒烟的行列，但是中学生中吸烟的现象日趋严重，请就吸烟有害写一篇短文，从以下几个方面阐述吸烟的危害性。（词数：150左右）
1．你所在的学校中出现了中学生吸烟者;
2．吸烟对呼吸系统（respiratory system），心血管（blood vessels of heart）和肺十分有害。吸烟者肺癌发病率是不吸烟者的4倍;
3．吸烟对于身体处于发育阶段的青少年危害更大，而且还危害不吸烟人的健康;
4． 吸烟可以引发火灾。
Nowadays almost everyone has realized that smoking is harmful to people's health and more and more smokers have given up smoking. However among middle school students, smoking can be seen more and more often. Young smokers are also found in our school, that's too bad.
It is known that smoking can cause different kinds of diseases. It has bad effect on one's respiratory system, lung and blood vessels of heart. It is reported that smokers have four times of more chances of getting cancer of lung than nonsmokers. It is even worse for young people who are still in physical development. Smoking is also harmful to those who don't smoke themselves, such as children, women and old people, and the bad effect is even larger to them. Sometimes smoking causes fires.
In one word, we have enough reasons to say that smoking is no good. Just think of those who suffer from diseases caused by smoking and the fires that destroy people's lives and properties(财产). Stop smoking, please.
$selection$
yment）。