完形填空：

阅读下面短文，掌握其大意，然后从1～25各题所给的四个选项中，选出一个最佳答案．

(A)

　A class of small boys in a German school had been making a lot of noise, so their teacher decided 　1　． He kept them in the classroom after the other boys 　2　and told them to add all the numbers from 1 to 100 together．

　The boys sadly 　3　their exercise books and began to write the numbers down—all of them 　4　one boy, who had been in that school only for a few days． This boy looked out of the window for a few moments, wrote a number in his exercise book and 　5　his hand．

　“May I go home when I've found the answer, sir? ” he asked．

　“Yes, you may, ” answered the teacher．

　“Well, I've found it, sir” said the boy．

　The teacher and the other boys were all very surprised．

　“　 6　,” said the teacher．

　The boy brought it． It was quite correct, so the teacher had to let the boy go home． The next morning, the 　7　teacher asked the new boy how he had found the answer so quickly．

　　　“Well, sir, ” he said, “I thought that there 　8　the answer, and I found one, you see, If you add 100 to 1, you get 101, and if you add 99 to 2, you also get 101, 98 to 3 is 101 too, and if you go on until you reach 51 and 50, you have 101 fifty times, which is 5050． ”

　After this, the teacher gave the boy 　9　the other boys in the class． His name was Karl Friedrich Gauss, and when he 　10　, he became a famous professor of mathematics．

(B)

　　 　On October 21st of 1833, Alfred Nobel was born in Sweden． His father was an engineer, and at that time he was 　11　explosives (炸药)． When Alfred was 　12　to go to university, his father sent him to the United States to study mechanical engineering (机械工程学)．

　　　When he left university, he started a factory with his brother to make a new and very powerful explosive． At first the factory 　13　, but one day there was a terrible explosion (爆炸) in the factory． It killed several workmen and Alfred's brother． Alfred himself was not there that day．

　　　Alfred 　14　after his brother's death, but he did not stop working; he moved his factory onto a boat, and took it a few miles out to sea． “If 　15　,” he said to himself, “I will be killed, but 　16　will be hurt． ” He was not killed 　17　, but made a new and much safer explosive． He called it dynamite (甘油炸药)．

　This was the time, in 　18　of the nineteenth century, when many modern roads and the first railways and tunnels 　19　in Europe． Everybody wanted to use Nobel's new dynamite． He soon became very rich．

　　　But Nobel's dynamite was not always used for making roads; it was also 　20　making war． “It's Nobel's fault (错误), ” many people said, “It's his dynamite they're using to make war． ” It was true; it was his dynamite; but was it his fault?

　One day, in 1891, Nobel opened a newspaper and read the story of his own death! It was 　21　, of course, and at first he laughed; but he did not laugh then he saw the things the newspaper 　22　him, “A very bad man, ” they said, “…terrible…wanted to destroy the world with his dynamite…”

　Poor Alfred Nobel! He decided to leave Paris, and went to live in Italy． There he 　23　in a big house, working and studying every hour of the day．

　　　In 1896, Alfred Nobel died． But that was 　24　his name． When he died, he left a lot of 　25　five Nobel Prizes． These are given every year for important work in five different fields, One prize is for chemistry, another for physics and another for medicine; there is also one for literature (文学); and the fifth one, the most important one for Alfred Nobel, is the Nobel Peace Prize．

The repairman told me, “No charge. Professor Pan! We’re friends.” “I’d rather pay.” I replied. “If it’s free I can’t afford it!”

Chinese often refuse payment for professional services, insisting, “We’re friends now!” But then they show up later to ask me to tutor them in English, or get them into an American university, and I wish I’d have just paid the 30 yuan I owed them in the first place!

According to the Americans “There’s no free lunch,” meaning, there’s a price for everything, and I’m always looking around to figure out what this means.

Many of our neighbors have given us fruit or flowers or costly teas, never asking anything in return. For years, a bicycle repairman has repeatedly refused to let me pay him. “Wait until you have something major to fix!” he insists.

I mentioned to a peasant friend that I wished I had a stone mill(磨)to grind flour for bread. A month later he showed up with a beautiful mill that he’d had his uncle in the countryside carve from a solid block of granite.

Chinese generosity is a real education for Americans like me, who would rather avoid social entanglements(纠缠)and just hand over the money. But cash can’t compensate (补偿) for the greatest gift—friendship.

When an American saw some of my friends sitting on bamboo stools under the trees, drinking tea, he said, “They must have nothing better to do.” “Actually,” I said, “they are professors, with plenty to do. But probably you’re right in saying that, at this moment, they have nothing better to do. And neither do I!”

And I joined the group. We chatted about tea and Chinese cooking and how much my boys have grown since we arrived. One man said, “They were pocket-sized when you came here. Now they’re taller than you. How time flies!”

How life flies. And Chinese are smart enough to share what they know. They cannot keep. They freely give off their time, never too busy to help a friend. And they are teaching me, slowly, to both give and receive.

So the next time someone says, “No charge. We’re friends!” I will thank them heartily. But if they show up later asking me to tutor them in English. I’ll make sure they tutor my son in Chinese as well, because there’s still no free lunch.

86. Why did the author insist paying the repairman when he was offered free repairs?

A. Because he was an upright man.

B. Because he didn’t know the repairman.

C. Because he thought it natural to pay for other’s service.

D. Because he didn’t want to help others in return.

87. The underlined word “figure out” in Paragraph 3 probably means____.

A. calculate　 B. think of　 C. know about　 D. make it clear

88. Generally, the author thinks that____.

A. Chinese are generous and always ready to help their friends

B. Chinese are good at exchange of equal values

C. Chinese are free enough to drink tea and chat with their friends

D. Chinese are helpful but don’t treasure time

89. The best title of the article should be____.

A. Still no free lunch

B. A good lesson from the Chinese

C. True help or not

D. Learn to both give and receive

90. Which of the following is true?

A. Chinese seldom refuse payment for professional services.

B. When a peasant knew the author needed a mill, he made one for the author himself.

C. The author thinks that Chinese are wise enough to enjoy their life.

D. Finally, the author changed his mind and decided to do as the Chinese do.