Smoking is harmful
　　Smoking cigarettes is very harmful to our health. Studies show that smoking can cause cancer and other health problems. Smoker should give up smoking.
　　In addition to health problem, there are other reasons to give up smoking. First, cigarette is very expensive. It is estimated that a smoker will at least spend more than $400 a year. And ,smoking leaves an offensive odor. Non-smoker don’t like to be at around the smoker. Further-more ,smoking is a source of pollution. These are all good reasons to give up smoking .
　　Of course ,it is not easy to give up smoking ,but it can be done. First ,a smoker may list the disadvantages of smoking ,which will be very helpful for him to give it up. Then ,the smoker should get support form his relatives or close friends. Last but not least ,the smoker should habit ,such as fishing and reading ,which will take the smoker’s mind off smoking英语 无烟日 世界