（一）No Smoking in All Public PlacesSome businesses now say that no one can smoke cigarettes in any of their offices. Some governments have banned smoking in all public places. This is a good idea though it takes away some of our freedom.As we know, smoking is harmful not only to our health but also to the environment. Smoking can lead to many diseases, such as lung cancer. Smoking affects non-smokers more than it does smokers. Ratio of passive smokers getting ill is higher than that of smokers. So, many nonsmokers are against smoking.In public places, the harm of smoking is greater. This is connected with another effect of smoking. That is, smoking pollutes environment by giving much poisonous vapour off into the air.Therefore, that the government ban smoking is very necessary and important to us. It is a measure to protect our health and environment. So many people, especially nonsmokers are Ior tile policy.Some people say that it takes away some of our freedom. I think it is a one-sided view. If one wants to smoke, he may smoke in private, not in the public places. In fact, smokers still have the freedom of smoking.But, I think, smokers had better give up smoking, not only in private places, but also in the public places, everywhere. It will be beneficial to all of us.（二）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. 希望我的回答令你满意~！。