Archimedes and the golden crown

One day in ancient Greece, King Hiero asked a crown maker to make him a golden crown. At first, he was very1 with it.

"It's a nice crown, isn't it?" he asked his men. Later, however, he began to doubt2it was a real golden crown. "Is it made completely of gold?" he wondered. He sent it to Archimedes and asked him to find out the truth.

"This problem seems difficult to solve. What should I do?" thought Archimedes.

Archimedes was still thinking about this problem3he filled his bath with water. When he got into the bath, some water ran over.  

"That's it!" shouted Archimedes. "I know4 to solve the king's problem!"

Archimedes went straight to the palace to see the king. First, he5the crown and asked the king for some gold of the same weight.

Next, he put two pots into two big bowls and filled6pots with water. He put the gold into one pot, and some water ran into the bowl. Then he put the crown into7pot. This time, even more water ran into the bowl.

"Look at this," said Archimedes to King Hiero. "A crown8completely of gold displaces9water than a crown made of gold and another metal. This crown displaced more water than gold of the same weight, so I'm certain that it is not10made of gold. "

"The crown maker tricked me, didn't he? What a bad man he is!" shouted King Hiero. He then sent the crown maker to prison.

    Dean felt his arms and legs were burning. With each breath, Dean wondered if he should be done, but as he touched the wall at the end of the pool he turned for another lap (圈). "I can do one more. This is for Kevin," Dean told himself. He was starting his seventh lap.

    Dean and the other members of his swim team were swimming to raise money for Dean's best friend, Kevin Hawking. Earlier in the year, Kevin fell ill. He needed expensive medical care that his family couldn't afford. After Kevin's friends learned what was happening, they started brainstorming ways to help. Several of Kevin's friends were on the swim team, which led to the idea of swimming.

    For a month, Dean and the other swim team members had asked for pledges (承诺) from anyone who would help: family members, friends, and neighbours. Most people pledged a dollar or two each lap. Dean's grandmother said she would offer $ 10 for each lap Dean swam!

    Finally, as Dean completed his tenth lap, he knew he was too tired to keep going. If I try another lap. I'll end up lying in the middle of the pool, waiting for someone to come and get me, he thought. Dean pulled himself up onto the edge of the pool and sat breathing quickly for a couple of minutes, quietly resting before he tried to stand.

    Dean's father came over and said, "Wow, Dean," shaking his head in amazement, "I am so proud of you. That's farther than anyone else has swum today, and I know it's farther than you've ever swum before."

    Dean stood up and slowly walked with his father back to the seats where the other swimmers sat next to Kevin. "Thank you," Kevin said.

    "It's no big deal. I know you'd do the same for me," Dean said.

On Saturday morning, every boy in town was happy, except Tom Sawyer. Tom's aunt said he had to paint the fence(围栏). It was thirty yards(码) long and three yards high! When he was working, some boys came along and made fun of him. 

Ben was the first one who came happily with an apple in his hand. 

"I'm going swimming," said Ben. "Do you want to come? Oh, you have to work, don't you?"

Tom got a little angry, but soon he had a wonderful idea. 

"Work?" he said. "I don't think this is work. It's fun. Does a boy get a chance like this every day?"

Ben thought about this. He was watching Tom's every move and was getting more and more interested. 

After a while, he said, "Tom, will you let me do some painting?"

"No way. You see. Aunt Polly wants it to be done properly. I'm the only one that can do it right."

"Oh, please, Tom," begged(恳求) Ben." I'll be really careful. Let me try! I'll give you my apple in return."

"Well, all right, Ben," said Tom. "But you must be careful."

He gave Ben his brush with worry on his face but joy in his heart. He started to eat Ben's apple. 

All day, boys passed by and wanted to paint. When Ben got tired, Billy began to paint. He gave Tom his favorite kite. Then Johnny gave him twelve marbles(玻璃球), and so on. 

That afternoon, Tom got many toys, and the fence got three coats of paint. Aunt Polly was so pleased when she saw the painted fence that she gave Tom a large cake!