吸烟的英文作文跪求英语达人帮忙写一篇关于吸烟的作文,200～300个字!内容如下：1.烟的成分.2.吸烟对人体的危害和坏的影响.3.人们吸烟的原因.4.吸烟的社会影响和引发的社会问题.

It is known to everyone that srnoking is harmful to our health.Research conducted in many countries has indicated that smoking causes lung cancer,heart disease and various respiratory illnesses.
Nowadays more and more people have realized smoking can do harm to people'shealth.However,some people still enjoy smoking.Why?Because some of them think it is a kind of fashion,some think it is of great fun and others,think that smoking can refresh themselves.
In fact,smoking is a bad habit.It can cause a lot of diseases.Meanwhile smoking is a waste of money.Besides,careless smokers may cause dangerous fires.
Smoking is harmful and it is not only bad for smokers themselves,but also bad for non-smokers.
Therefore,I hope all the smokers can give up smoking for themselves and also for the people around them.
Responding to overwhelming medical evidence of the harnful effects of smoking,many governments have taken actions to reduce tabacco consumption.Some have imposed heavy taxes on tabacco products,others have conducted anti-smoking campaigns.In theatres,cinemas and some public places nonsmoking is often demanded by authorities.
However,none of the governments have even considered prohibiting the sale of tobacco.This is due partly to the political power of the big tobacco companies and partly to the fact that so many people,particularly in influential position in society,are habitual smokers.Tobacco farmers and workers are also strongly opposed to legislation.In fact,smoking is not only a matter of habit but also a matter of profits.