参考答案

                                          Smoking
    As we all know , smoking is bad for people’s health. but there are more than half of the population smoking in China. Even though the habit of smoking is very bad, the number of smokers keeps growing, and the average age of the smokers is getting younger. Even some middle school students smoke, too. Why do so many people smoke today? Because some people think smoking is a kind of fashion or something interesting. Most people are so busy with their work that they smoke to refresh themselves; however, I don’t think smoking is good. If you smoke too much, you will get diseases. It costs a lot of money as well. In order to keep healthy, we should get rid of the habit of smoking.