Smoking and Cancer-吸煙和癌癥
Smoking and Cancer
1.吸煙對健康有害。
2.吸煙易患癌癥。
3.世界各國政府應(yīng)采取嚴(yán)厲措施限制吸煙。
Smoking is harmful to the health of people . It not oilly pollutes air，brings about sufferings of other people such as children and nonsmokers，but also causes diseases of
bronchitis，lung cancer，chest cancer and throat catcer.
Smoking is associated with cancers.Smoke is a mixture of gases，vaporized chemicals，minlute particles of ash，and other solids.There are also tar and nicotine，which are
powerful poisons.As the smoke is breathed in，all these components from deposits the
membranes of the lungs.One point Of concentration where air tube，or bronchus divides.Most lung Cancer begins at this point.
World governments should conduct Seriou campaigns against smoking.First，legislative step must be introduced.Second，restrictions on cigarette advertisements must be imposed.Third，public smoking in certain places such as theatres，cinemas，waiting roms at airports and railway stations should be banned.In this way，we may make the smokers feel increasingly uncomfortable about their bad habits.finally，cigarette price should be booste
吸煙對人們有健康有害。吸煙不但污染空氣，給他人帶來痛苦，譬如給孩子及不吸煙者帶來痛苦，而且還引起支氣管炎、肺癌、胸癌和喉癌。
吸煙與癌有關(guān)。煙是一種混合物，其中有氣體蒸發(fā)的化學(xué)物質(zhì)、微細(xì)的煙塵顆粒和一些固態(tài)物質(zhì)。煙里有焦油和尼古丁，這兩種東西毒性很大。煙吸人肺里，所有這些成分沉積在肺部的粘膜上。集中的一點就在支氣管分叉處。大多數(shù)癌癥就是由此處開始的。
世界各國政府應(yīng)發(fā)起一場禁煙運動。首先，應(yīng)采取立法措施。第二，嚴(yán)格限制刊登香煙廣告。第三，禁止在某些公眾場所吸煙，譬如，不許在劇場、影院、候機廳和候車吸煙。這樣，我們就會使那些吸煙者對他們的壞習(xí)慣逐漸感到不舒服。最后一點是，應(yīng)提高香煙價格。