题目内容：

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 l3％of girls in middle schools in China have smoked．Some are as young as 11 when they first try!

May 31st is World No-Tobacco Day．Health experts(专家)are asking young people not to smoke．Doctors say smoking can make people get illnesses，like lung cancer．Not only that，smoking costs a lot of money，too!

Stop smoking，children!It’s bad for your health．

1.Li Chuang began to smoke when he was       ．

A. 12    B. 13    C. 15    D. 16

2.More____________have smoked than____________        in middle school in China．

A. girls，boys    B. boys，girls    C. students，teachers    D. women，men

3.The underlined words“World No-Tobacco Day”means“       ”in Chinese．

A. 世界无癌日    B. 世界节能日    C. 世界无烟日    D. 世界地球日

4.Why do you think the middle school students mustn’t smoke?

A. Because they will waste lots of money．

B. Because their parents are too poor to give them so much money．

C. Because their teachers are afraid that they won’t study well．

D. Because smoking can make people get serious illnesses，like lung cancer．

5.Which of the following is true?

A. Doctors do not smoke．

B. Some kids begin to smoke when they are 11 years old．

C. Smoking doesn’t cost much money．

D. Only some old people in the countryside of our country smoke，however the young men don’t smoke．