These days, more and more people begin to pay more attention to their health. They want to take up different kinds of sports to keep healthy. What sports should they do then?

    Tennis

    Thomas opened up a tennis room recently. To his surprise, there were much more people than he expected(预想) coming on the first day. Because no more room was available(可利用的), he had to rent(租借) another bigger room from his neighbour, but it still couldn't meet the need. "I am pleased to see so many people like playing tennis. It is a very good sport for health," said Thomas.

    Football

    Donna works in a bookstore. She often goes to play football in the middle school near the bookstore. "Although the students are having their summer holidays, to my surprise, the playground is crowded with people," said Donna.   

    Of course, there are some other sports that people can do to keep healthy. But it's certain(确定的) that people who often exercise can work better.

    A lot of teenagers are good at art at school, but how would you feel if people called you “the new Picasso(毕加索)” or if presidents and other famous people collected your paintings?

    Alexandra Nechita was ten when her paintings became famous all over the world. She visited Britain, France, Italy, Japan, Australia, New Zealand and her family's native place (祖籍) Romania where 5,000 fans came to see her at the airport. Alexandra said, “When it all started, I was moved. It was very exciting and I loved the traveling, but I got very tired. And I missed home.”

    Alexandra is a good student. Her studies always come first. She only starts painting after she's done her homework. She works on two or three paintings at a time. The paintings sell for thousands and Alexandra's parents have given up their jobs to work for their daughter. Life for the Nechita family is very different from what it was like a few years ago. Alexandra's father Nike left Romania for political (政治的)reasons in 1985. At first he tried his best to learn English and had different kinds of low-paid jobs. In 1987, he brought his wife and Alexandra, who was then 18 months old, to America. The family was very poor. Alexandra began to draw at the age of three.

    She was drawing for four or five hours a day. Soon people offered(提出) to buy her paintings and she had her first art show at the age of eight. Stories about this child appeared(出现) in the newspapers and television. They now live in a large house with a swimming pool. Her mother said, “We started without anything, but thanks to Alexandra, we have everything we ever dreamed of.”

    A restaurant had one falled upon hard times. Only five 1 were left: the manager and four others, all over 60 years old.

    In the town near the restaurant there lived a successful businessman who was good at managing business, so the manager2to ask the businessman if he could offer any advice that might save the restaurant. The manager and the businessman talked for a long period of time, but when he was asked for advice, the businessman 3for a while and then said, "I have no advice to give. The only thing I can tell you is that the saver (救星) is one of you."

    The manager, returning to the restaurant4, told the other people what the businessman had said. In the months that5, the old restaurant workers thought carefully of the words of the businessman, "The saver is one of us?" They asked themselves. As they thought about this possibility, they all began to treat each other with6respect(尊重). And thinking that each of themselves might be the saver, they also began to treat themselves with more care.

    As time went by, people coming to the restaurant7that some respect and warm kindness were around the five old members of the small restaurant. Hardly knowing 8, more people began to come back to the restaurant. They began to bring their friends, and theirs brought more friends. Two 9 later, the small restaurant had once again become a big food company, thanks to the businessman's10. They understood that it was they themselves that were the savers.

    Life is full of surprises and you never know how things will turn out.

    Sir John Gurdon is a good example of this. As a boy, he was told he was hopeless at science and was at bottom of his class. Now, aged 79, the very same Gurdon shared the 2012 Nobel Prize in Medicine with Japanese stem cell (干细胞) researcher Shinya Yamanaka.

    Like so many scientists, Gurdon shows us where the power of curiosity and perseverance(坚持) can lead.

    When he was 15 in 1948, Gurdon ranked last out of the 250 boys at his high school in biology and every other science subject. Gurdon's high school science teacher even said that his dream of becoming a scientist was "quite ridiculous".

    In spite of his teacher's criticisms(批评), Gurdon followed his curiosity and kept working hard. He went to the lab early and left later than anyone else. He experienced thousands of failures.

    "My own belief is that we will, in the end, understand everything about how cells actually work," Gurdon said.

    In 1962, Gurdon took a cell from an adult frog and moved its genetic (基因的) information into an egg cell. The egg cell then grew into a clone of the adult frog. This technique later helped to create the sheep Dolly in 1996，the first cloned mammal(哺乳动物) in the world.

    In 2006, Gurdon's work was developed by Yamanaka to show that a sample(样本) of a person's skin can be used to create stem cells. Using this technique, doctors can repair a patient's heart after a heart attack.

    "Luck favors the prepared mind," Gurdon told the Nobel Prize Organization. "Ninety percent of the time things don't work, but when they do, you have to seize(抓住) the chance."