【正确答案】正确答案: Smoking and Health It is not until recently that smoking has been firmly proved to be hazardous to health. Smoking has been determined to be related to many sorts of human diseases. Smoking irritates the throat and respiratory passages. It sometimes leads to poor appetite, nausea, short breath, and irregular heartbeat. More importantly, smoking is associated with chronic and fatal diseases of respiratory tract. Evidence shows that smokers are more likely than nonsmokers to develop cancer of the lung, throat, tongue, and jaw, emphysema and bronchitis as well. Nicotine in tobacco can be stimulating by affecting various centers on the medulla oblongata region of the brain. It can affect other physiological processes that in turn affect the respiratory center in the brain. It is an undeniable fact that smoking is not only harmful to the smoker itself, but the harm to the second-hand smokers is even severe. Meanwhile, outdoor smoking generates garbage like cigarettes' butts and boxes, which contaminate the environment by pollute soil. Moreover, smoking can constrict the arteries, and cause vomiting. To concern this issue, many nations have made enormous efforts to warn people of the dangers of smoking. And propagandize of quitting is worldwide to make people realize that a variety of diseases caused by smoking is not irreversible. Health can be restored as long as smoking cessation. Only when the smokers are truly determined to build a new life style can they get rid of this kind of bad manner.
【答案解析】解析:审题时要着重注意题目要求,看清题干的主旨和细节,防止遗漏要点和信息。文章结构需精简但要合理组织语言。这是一篇关于吸烟与健康关系的说明文,抓住每段中心点,分段陈述吸烟的各方面危害。