关于吸烟危害的英文演讲课件

,When you see those pictures, what can you think of ？,Name:Yu Xiaobo Jiben Erban Topic:Cigarettes ?,Welcome,Tobacco is a solanaceae annual herb plants, and it has about more than sixty varieties. But the real used in the manufacture of cigarette and tobacco, is basicly only red tobacco. Besides, a few other varieties like chrysanthemum tobacco are used, other varieties are seldom used.,At the middle of the 16th century, tobacco was introduced into China. It started by Sun Qiongyan, and it had more than 400 years of planting history. Since 1910,it was successfully planted in ShanDong, HeNan, AnHui, LiaoNing and other places . The introduction of Oriental tobacco in 1950s, the introduction of burley tobacco in 1960 s, respectively successfully planted in ZheJiang, HuBei.,There are many varieties of cigarettes.,Cigarettes,Nicotine in tobacco smoke of alkaloid content of more than 95% of tobacco smoke in other trace alkaloid, content is very small, each cigarette smokers to last for 5 mg.,740 million people are killed by secondhand smoke. The World Health Organization (WHO) statistics show that the number of death in the world has reached 600 million every year because of smoking , more than for HIV/AIDS, tuberculosis, malaria in the sum of the death toll.Among them, the smokers death bout 5.4 million, or an average of every 6 seconds one smokers die; Because of secondhand smoke exposure caused in non-smokers death toll is about 600000.,1. Smoking can damage the brain, affect intelligence . Because nicotine in cigarettes inside stimulus plant nerve system, causing vasospasm, affect the brain cortical neural activity, make the persons intelligence breakdown. 2. The nicotine tobacco is a kind of nerve toxin, main infringer of the nervous system.,3. According to the survey, there are many factors causing myocardial infarction, such as high blood fat, high cholesterol, hypertension, diabetes, obesity, alcohol, stress, but the main factor is smoking. 4. Smoking cause vision decline.,Why are there still many people smoking ?,The temptation of nicotine, because of just 0.5 mg of nicotine, addictive, and a smoke contain nicotine more than 0.5 mg. Nicotine enters the body can stimulate the brain the hypothalamus nerve produce exciting feeling, commonly known as “great“ feeling. Because long-term stimulation and exciting cases, if stop suction nicotine, you will feel lassitude, limp, general weakness, even yawning, tears, feel pain.,The effects of nicotine on the human body,1, it can directly kill life. 2,it can destroy human nutrition. 3, it can cause a variety of diseases .,1. Throw away smoking appliance, such as lighter, cigarette, reduce your “conditioning“. 2. After dinner, drink water, eat fruit or take a walk, get rid of the idea of a smoke after a meal. 3. Make a plan to give up smoking, to reduce the number of cigarettes every day. 4. If you really think quitting smoking is difficult,you can look for professional consulting like asking a doctor for help, get the support from family and ask friends for help is also an im