The problem of smoking has been widely discussed all over the world. As is shown in the pictures, smokers make up 20% of the worlds total population. And tobacco has caused a loss of 200 billions dollars and claimed 3 million lives annually. However, it is encouraging that the world tobacco production has dropped from that of 14.364 billion pounds in 1994 to that of 14.2 billion pounds in 1995. According to this change, I am confident that there will be less and less tobacco consumption in the future, generally for two reasons. On the one hand, more and more people are aware of the great harm of smoking and join in the fight against it. On the other hand, many governments have attached more attention to this social hazard and have taken many measures to put an end to it. The most obvious example is the ban of tobacco advertisement on mass media in some countries. Therefore, I have every reason to believe that the fight against smoking will be won at last.