secondhand smoke[最新]

tobacco,cigarette,health problems,About 1.3billion people in the world smoke.,Every year about 4 million people in the world die from smoking.,About 0.3billiom people in China smoke.,Every year about 1 million people in China die from smoking.,By 2025, over 2 million Chinese people will die from smoking every year.,By 2025, over 10 million people in the world will die from smoking every year.,The dangers of smoking,The danger of nicotine(尼古丁),(1) The nicotine in a cigarette can kill a mouse.(2) The nicotine in 25 cigarettes can kill a head of cattle.(3) 40 or 60 mg(毫克) nicotine can kill a person.,1.Heart disease. Smoking is responsible for 30 percent of all heart attacks and cardiovascular deaths. 2.Cancer. It is responsible for at least 30 percent of all cancer deaths and 87 percent of lung cancer deaths each year. 3.Lung problems. Smoking is responsible for 82 percent of deaths due to emphysema and chronic bronchitis. 4.Other health problems.5.Cause the dangers of secondhand smoke.,What is secondhand smoke?,It is smoke that a person breathes in when he is near a person who is smoking.,It is also called Environment Tobacco Smoke.,The dangers of secondhand smoke,Serious health risks to pregnant(孕妇) and children,Secondhand smoke causes cancer, asthma(哮喘) and other health problems.,The fetus(胎儿) and newborn:Childrens lungs and respiratory tracts(呼吸道):The Ears:The Brain:,a. As a student, what should you do to avoid secondhand smoke?b. If you are a smoker, what should you do to protect others from secondhand smoke?c. If you are a government official, what measures should you take to avoid secondhand smoke?,Interview: If you are a journalist from CCTV, you are interviewing some people. You want to know what they do to avoid secondhand smoke. Do it in groups of four.,1.Stop smoking, if you do smoke. Ask doctors for help, if needed. There are many new medicines which can help you quit. 2.If you have family members who smoke, help them stop. If it is not possible to stop their smoking, ask them and visitors to smoke outside of your home. 3.Do not allow smoking in your car. 4.Be sure that your childrens schools and day care facilities(日常设施) are smoke free.,What can you do to avoid secondhand smoke?,“World No Tobacco Day,Lets clear the air Avoid secondhand smoke,May 31st,Ho