Once upon a time, some children were playing at seaside when they found a turtle（海龟）. They began to beat the turtle. Just at that time, a young man came and said to them,“Stop!” The children ran ___1___ quickly. The turtle was very thankful and said.“Thanks for your kindness. I really would like ___2___ you to a wonderful palace now.”

　　The young man rode on the back of the turtle and was taken to the secret palace in the sea. When he ___3___ the palace, he was very surprised and said to the turtle,“What a nice palace!”To thank him, the king of the turtles gave him a very ___4___ dinner. He had never seen such a dinner before. He received a warm welcome there and was very ___5___ everything.

　　After dinner, the king of the turtles said,“I am going to give you two boxes, ___6___ you can open only one.” “You mustn't open both. Don't forget it!” the turtle warned him.“All right. I will open only one.”the young man promised（许诺）. At this time, a large wave sent him out of the sea.

　　After he ___7___, he opened the bigger one of the two boxes. __8___ the box was full of gold.“My God!” he cried.“I'm ___9___ man now.”Then he thought,“Things in the other box must be expensive, too.”He could not wait any longer. He broke his promise and opened the other box, As soon as he opened it, he became an old man. His hair turned white. His face ___10___ an old man over eighty years old. It all happened in a moment. He was sorry for what he did, but it was too late.

　　Americans smoke six thousand million cigarettes (香烟) every year, that is, every person smokes about 4195 cigarettes a year in the country of 18 years of age or more. It has been calculated (测算) that 51% of American men smoke while 34% of American women do so.

　　Since 1930, scientific studies have shown time and again that smoking does great harm to one' s health and that it will shorten one's life.

　　Cigarette smoking is believed, to most research workers in this field, a very important cause in the development of cancer (癌症) of the lungs and the cancer of the throat and is believed to have much to do with some other kinds of cancers. Cigarette smokers suffer from the illness of the heart more often than those who don't smoke. But strange, yet true, women are thought to be less affected (影响) , because when women smoke, they usually don' t breathe in the smoke so deeply. Most of the doctors and researchers say, “Give up smoking. If you don't smoke－don't start!”

　　Filters (过滤嘴) are required now to make smoking a bit safer, but they can only reduce, not get rid of, its poison.

　　But there are still a number of doctors and research workers who are less sure of the effect (影响) of cigarette smoking on health. They believe that cancers of the lungs, the throat and so on may also be caused by atmospheric pollution, or chemical poison that is now being used by farmers in large quantities to destroy plant pests (害虫) and small animals.

1． ________each smoke about 4195 cigarettes a year.

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2．It is believed by many that cancers of the lungs and throat are caused ________ by smoking.

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3．Smoking has much to do with ________.

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4．Doctors and research workers advise that ________.

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A．we should smoke filter-tipped cigarettes

B．we must not breathe in the smoke deeply when smoking

C．those who don't smoke shouldn't start

D．those who smoke less

5．From the passage we come to know that people may die from ________.

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