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    Yao Beina was not only a popular singer but also an energetic and warm-hearted angel. She donated her corneas(眼角膜) to two men after her death.

    Yao was born in a music family in September 1981 in Wuhan. She started to learn music at the age of 4, and she sang her first song on the stage when she was 9. Yao did quite well in singing, so she took part in the 13th Youth Singing Competition and won the first prize.

    She became well-known to the public after making some songs for the hit TV drama The Legend of Zhenhuan(《甄嬛传》), and the mandarin version(中文版本) of Let It Gofrom Disney's Frozen(《冰雪奇缘》). In July 2013, she competed in The Voice of China II and finally got the second place in Na Ying's team. She had won many music prizes.

Yao Beina was unlucky to be diagnosed(诊断) with breast cancer(乳腺癌). She had a successful operation(手术) in 2011. She has fought against the illness for about four years while keeping singing, but sadly she failed. Although she's gone, her fans will remember her beautiful voice and kindness forever.

    Nick was born with no arms or legs. There was only a small foot on his hip(臀部). He can't do the easiest things like washing his face or brushing teeth, but he can type, pick things up between his toes (脚趾)and even kick a ball.

    Nick grew up in Melbourne, Australia. He wasn't happy at school because his classmates often laughed at him. At the age of 10, he even wanted to kill himself. But later, he changed. He tried to look at good things around him. When he was 17, a friend encouraged(鼓励) him to give speeches. From then on, he began to travel around the world and give talk about his life. He thinks it can help others. Up to now, he was been invited to more than 50 countries and given thousands of talks.

    Now Nick is 32 years old. He lives in California with his wife, Kanae, and their 2-year-old son.

    When you are sad, think of him. At least you have arms and legs.

    Have you ever saved money to do something special? Cindy Evans and her third-grade class are sure to answer, "Yes!"

    Cindy Evans works at Big Beaver Elementary School in Big Beaver, Pennsylvania. One day, she and her third-grade class read about the Great American Smokeout in Weekly Reader. The Smokeout is an event to help people give up smoking. The American Cancer Society runs it.

    "We read that about l million people give up smoking each year," said Ms Evans. Then her students asked her. "What does 1 million look like?" Ms Evans told her class the best way to see 1 million was to collect 1 million things.

    "I was thinking about collecting 1 million small things like erasers," said the teacher. But her students had a better idea: to collect 1 million pennies (分) and give them away to the American Cancer Society. Soon the class started their big job.

    Many people in the neighbourhood joined the students. According to Ms Evans, the bank in their neighbourhood had to keep more pennies because so many people were collecting them.

    That June, the class went to the office of the American Cancer Society with 1,177,500 pennies, or$11,775. They hoped that the money could help more people keep healthy.

    Tim Berners­Lee is not the most famous inventor in the world. However, his invention has changed our lives. He was born in London, England in 1955.When he was a small boy, Tim was interested in playing with electrical things. He studied science at Oxford University. He made his first computer from an old television at the age of 21.Tim started working on early computers. At that time, they were much bigger than now. He worked in England then Switzerland. Tim was really interested in two things, computers and how the brain works. How could the brain connect so many facts so quickly? He had to work with people all over the world. They shared information about computers. It was hard to manage all the information. He answered the same questions again and again. It took a lot of time. It was even difficult for computers in the same office in Switzerland to share information. Tim also forgot things easily. Could a computer work like a brain? Could it “talk” to other computers?

    There was an Internet already but it was difficult to use. In 1989, Tim Berners­Lee invented the World Wide Web (WWW) all by himself. This had a special language that helped computers talk to each other on the Internet. When people wanted to share information with others, they used the World Wide Web. The Internet grew quickly after that.

    Tim Berners­Lee doesn't think he did anything special. He says that all of the ideas about the Internet were already there. All he did was to put them together. He says that many other people worked together to make the Internet what it is today. Most inventors want to become rich. But Tim gave away the World Wide Web for nothing. He now works in America. He helps people share technology and wants the Internet to be free for everyone to use. Maybe he is the most important but least famous inventor in the world today!

    Today, roller-skating is easy and fun. But a long time ago, it wasn't easy at all. Before 1750, no one had any ideas of roller-skating. That changed because of a man named Joseph Merlin. He liked to make things and play the violin in his free time. He was a man of ideas and dreams. People called him a dreamer.

    One day Merlin was invited to a party. He was very pleased and a little excited. As the day of the party came near, Merlin began to think how to make an amazing entrance at the party. He had an idea. He thought everyone at the party would show much interest if he could skate into the room. He tried different ways to make himself roll. Finally, he decided to put two wheels under each shoe. These were the first roller skates. Merlin was very proud of his invention and dreamed of arriving at the party on wheels while playing the violin.

    On the night of the party Merlin rolled into the room playing his violin. Everyone was very surprised to see him. There was just one problem: Merlin had no way to stop his roller skates. He rolled on and on. Suddenly he ran into a mirror that was hanging on the wall. The mirror fell down, breaking into pieces. Merlin's idea was so good that nobody forgot his special entrance for a long time. But could he find out a way to stop his roller skates?

    A friend's grandfather came to America from Britain. He went into a cafeteria in Lower Manhattan to get something to eat. He sat down at an empty table and waited for someone to take his order. Of course nobody did. At last, a woman with a plate full of food sat down in front of him and told him how a cafeteria worked. "Start out at one end," she said. "Just go along the line and pick out what you want. At the other end they'll tell you how much you have to pay."

    "I soon learned that's how everything works in America," the grandfather told a friend. "Life is like a cafeteria here. You can get anything you want only if you like to pay the money. You can even get success, but you'll never get that if you wait for someone to bring it to you. You have to get up and get it yourself."