Li Chuang is a 15-year-old boy, but he has been a smoker for three years. His teeth and fingers have turned a bit yellow. “I first tried smoking after watching TV. It makes me feel excited and I think it looks cool,” he said. Not all students smoke as much as Li but there are lots of child smokers. A report says 32% of boys and 13% of girls in middle schools in China have smoked. Some are as young as 11 when they first try! May 31 st is World No-Tobacco Day . Health expert( 专家 ) are asking young people not to smoke. Doctors say smoking can make people get illnesses, like lung( 肺 ) cancer. Not only that smoking costs a lot of money, too! Stop smoking, children! It’s bad for your health.