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1、1,Why do people smoke?social contact?Or because of conformist mentality?2,The harm of smokingCigarette ingredients（香烟的成分）Nicotine 尼古丁Carbon monoxide 一氧化碳Tar 焦油Nitrosamine亚硝胺 Radioactive material 放射性物质 Benzoapyrene 苯并芘Metal cadmium 金属镉Chloroethylene 氯乙烯 Health killer Scientific researches show that s
2、moking can lead to heart disease,cancer and other problem.The World Health Organization says diseases linked to smoking kill at least two million five-hundred-thousand persons each year.It is estimated that approximately 50 million Americans smoke.400,000 people are thought to die in America each ye
3、ar from smoking related causes.Yet even when smokers are presented with these figures they still smoke.In the UK,it is estimated that 1/4 of the populace smoke,approximately 13 million adults.As smoking decreases in the older population the trend is increasing amongst the young.Its a waste of moneyI
4、t can result in coughIf baby swallow one,it likely to died.It can effectively hooking their childIts bad for our body!Before smoking After smoking And smoking will harm the person around you,always the person is your best frined!Smoking is harmful to health.No smoking,our lives will have a brighter future.If we smoke,life will become more and more short.In order to stay more in the world,please care for our bodies.