Smoking should be banned in public places, to what extent do you agree or disagree?
It is undoubtedly the case that people and their life have constantly suffered from either voluntary or passive smoking, especially from smoking in enclosed public spaces. Whether it should be banned or not has sparked a controversial debate in the community. I contend that government should implement practical policies in combating public smoking, because of the detrimental effects exerted on the local community and its people.
主体段一，同样地topic sentence需要直接有力，给出支持禁烟的理由，在分论点里举例论证是必要的。例文中一个重要例子是在墨尔本尤其是open area有易燃的危险，随意丢弃烟头很容易引发森林火灾。
Broadly speaking, there are two main reasons why smoking in public places such as restaurants, museums, cafes and clubs should be restricted, with no exception. Most importantly, although enjoyed by the vast majority of smokers when smoking, the unbearable smell as well as the carcinogenic chemicals produced seriously affects other people around. This would become a potential health risk to both smokers and passive smokers in the long run. In addition, there could be a high risk of sparking a fire from a dropped cigarette, if good attention is not paid to it. For instance, the bush areas in Melbourne often easily catch fire in drought seasons, and it could be devastating to the already grave situation, when smoking is allowed in such inflammable open spaces.
Although most people are happy with the ban, there could be some unexpected downsides to it. Many people say that some public places now smell even worse than before because there is no smoke to cover up other odours. Also, in some areas, people are finding it difficult to sleep at night as a result of smokers being forced outside, where voice and conversation is not contained. However, the health issues such as respiratory diseases and pneumonia induced by passive smoking is more of a problem than these side effects.
段尾，依然简明总结全文，需要注意虽然监管公共场所吸烟会带来一些minor side effects，但相对于提高全民健康素质来说，禁烟是更值得推广的。
In conclusion, there are a variety of factors that have led to the call for a ban on smoking in public places. Except for some minor side effects, the improvement in health and reduced risk of fire make enforcing this policy more than worthwhile.