雅思写作素材：公共场所是否应该禁烟

　　Should Smoking Be Banned in All Public Places?

　　1. Second-hand tobacco smoke can be deadly as well.

　　2. Cigarette smoke contains about 4000 chemicals, about 50 of which are known cancer-causing agents .

　　3. Only one smoker makes a majority, as the smoker spreads and fills all space available.

　　4. Governments should pass law to protect people and place controls on actions that harm others.

　　5. Damaging ones health is viewed as a personal liberty; damaging some one elses health may not.

　　6. Smoking in public places constitutes a real hazard to non-smokers.

　　7. Smoking endangers peoples health. Smokers are more likely to suffer from bronchitis and lung cancer and have a higher risk of developing other kinds of cancer.

　　8. Smoking may pose a potential fire hazard for smokers are careless about the cigarette butts.

　　9. Smoking may cause diseases such as cancers and bronchitis.

　　10. For years cigarettes have been known to cause cancer, emphysema , and other horrible illnesses.

　　11. Smoking not only does harm to the health of smokers but also affects the health of non-smokers around them because non-smokers are forced to take in some poisonous substances which smokers blow into the air.

　　12. Families could save money by not purchasing cigarettes; and accidental fires costing millions of dollars caused by cigarettes would cease.

　　13. With every cigarette you smoke, you are causing damage to your health.

　　14. Every cigarette you smoke reduces your lifespan by 11 minutes.