Pillow fighting is moving out of the bedroom and into the boxing ring. The Pillow Fight Championship, or PFC, plans to hold     1     (it) first live, pay-to-watch event in Florida on January 29.

Steve Williams had the idea of     2     (turn) a children’s game into a professional fighting sport. The head of PFC said professional pillow fighting will have the     3     (excite) of hand-to-hand fighting without the violence of mixed martial arts, or MMA, and boxing. He said it is not a joke.

The male and female athletes in January’s event come     4     (most) from MMA and boxing. But Williams said the athletes are not going to get     5     (injure). “The fighters don’t like to be hurt, and there are a lot of people     6     don’t want to see the blood. They want to see good competition, and they just don’t want     7     (see) the violence.”

Since many people grew up pillow fighting with friends or relatives, Williams     8     (hope) the new sport will be popular and can attract a large audience, including children.

“You can call it     9     unusual sport, but we think it’s going to have main appeal (吸引),” he said. “Think about how they mixed country music     10     rap music and brought these different audiences together. That’s what we’re doing, and we hope it brings in a different kind of viewers.”

3 . Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.

But while it’s long been believed that endorphins (内啡肽) —chemicals in the body that cause happiness—are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.

According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.

To test this theory, the scientists turned to mice. Both mice and humans release high levels of endorphins and endocannabinoids after exercise. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety. But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runners’ high symptoms seemed to fade.

“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.

Similar studies are yet to be carried out on humans, but it’s already known that exercise is a highly effective way to get rid of stress or anxiety. The UK’s National Health Service even prescribes (开药 方) exercise to patients who are suffering from depression. “Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can improve your mood if you have depression, and its especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.

It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is to put on our running shoes.

Sports Day was getting close in the school. All the children were very excited and were practicing for the big race. John, one of the fast runners of the school, was confident that he would win for he was not doing anything at all. “You have to work hard to come first in the race John. You are not practicing at all,” said John’s mother.

“Mom, you know how fast I am! Why should I waste my time running? Only I will win; no one else will win!”said John. “John, you may be right but talent (天赋) without hard work is not good at all. This laziness of yours will cost you greatly,” his mother warned him. John just laughed. He was so confident that he would win the trophy (奖杯) as no one else in his class was as fast as he was!.

Tim, a classmate of John, was also participating (参加) in the running race. He was not a fast runner. However, he practiced till late at night and had developed great endurance (持久力) to run the race.

There were a few days left for the Sports Day but John did not practice at all. On the other hand, Tim practiced day and night.

The Sports Day was almost around the corner but John was confident that no one could beat him and had not practiced at all. But Tim with his hard work had become a very great runner.

At last, the Sports Day arrived. All the students showed up on the ground to cheer their favorites. The coach blew the whistle (口哨) and everyone began to run toward the finishing line. It was so exciting. John and Tim left all the racers far behind. Both of them were neck to neck.

Suddenly, John went ahead of Tim.

John’s mother came up to Tim and praised him for his hard work.

5 . More scientists are exploring cellular senescence(衰老)—a state in which cells(细胞)no longer divide. Senescent cells, which build up in older bodies, have a link to age-related conditions such as dementia(痴呆) disease.

Scientists are exploring drugs that treat senescent cells. But the most promising tool against the bad effects of senescent cells, experts say, is exercise.

Today, LeBrasseur, who directs a center on aging at Mayo, says exercise is “the most promising tool that we have” for good health in late life, and its power spreads to our cells. Research suggests exercise prevents the buildup of senescent cells, helping the immune(免疫的)system clear them and fight the cell damage that can affect aging.

Last year, LeBrasseur led a study that provided the first sign in humans that exercise greatly affected senescence. It cut signs in the bloodstream of the effects of senescent cells in the body.

After a 12-week exercise program, researchers found that older adults had cut signs of senescence and improved body strength, physical ability and reported health.   A recent study collects even more facts—in animals and humans—for exercise as a treatment to fight against senescence cells.

While such studies are not well-known outside scientific circles, many older adults connect exercise with youthfulness. Farmer Mike Gale, 81, put in a track and field throwing circle on his large farm in California. He and some of his friends throw the discus(铁饼) and use other exercise equipment. “I'd like to be competing in my 90s,” Gale says. “Why not?”

95-year-old Richard Soller says exercise keeps him fit enough to deal with what comes his way—including the discovery that his wife of 62 years had developed dementia. The two sometimes walk the streets of their neighborhood together, holding hands. “Do as much as you can,” he says. “That should be the goal for anyone to stay healthy.”

9 . I am a girl, but I was born to be a rebel (叛逆者). I like games that can be ________. Some of the sports I like, even boys won’t play!

Wrestling (摔跤) is ________ seen as a sport for men, but I ________ to see if I could do it.

Every Saturday morning, I got out of bed early to go and watch my brother ________.From morning to night, I would sit watching the ________ have all the fun. Since then, wrestling has been part of my       ________.

For three years, I ________ all the boys and became the best player in the team. My deepest memory of wrestling is when a boy walked off ________ because he’d lost to a girl.

My last ________ was at this year’s Girls’ State Wrestling Championships.

I was so excited. I was sure I would win. My heart was beating hard when the match started. I could see ________ but my competitor. When the final whistle(口哨) blew, I had ________ by four points. The cameras and ________ all turned to me: I was the new wrestling champion. But after a few minutes of enjoying being a champion, pain began to run ________ my knee. Because I hurt my knee, my ________     of being a national champion ended. Even so, I won’t lose heart and still want to wrestle next year when I go to college. I have ________ that you can do anything you want if you stay positive and put your heart into it.

10 . All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer.     1    . They buy tickets or turn on their TVs to watch the games. Often they get very excited when their player or team wins.

    2     Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy!     3    . Think how many lovers to skate or ski in Japan, Norway or Canada.

Some sports or games go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet.    4    . Water-skiing is one of the newest in the family of sports.

People from different countries may not be able to understand each other, but after a game together they often become good friends.     5    . One learns to fight hard but fight fair, to win without pride and to lose with grace.(胜不骄，败不馁)