It is a way of showing off.

2. People may smoke in the area which is allowed, but some people continue to smoke regardless of others' objections. They can't smoke in the public places and in the smoke-free area.

3. Yes. First of all, every package carries a warning: Smoking is bad for your health.

No advertisements of cigarettes can appear in any forms of media.

【Summary and Homework】

In this period we talk about an unhealthy habit --- smoking. Smoking is harmful to our health. I do hope for the health of you and your family. Please don't smoke. We are young and full of hopes and energy. We should concentrate ourselves to our studies and work and serve the people heart and soul.

Your homework today is to find out some more about facts about smoking and use what you've learnt today to try to persuade some smokers to give up smoking.