1 . Five tips for safe running

We all know that exercise is good for our health. But some kinds of exercise may be better than others. Running, for example, may help to protect against heart disease and other health problems.

Running is good exercise, but it can be hard on the body.     1    

Take it easy. Do not run too much, too soon or too fast. Most people get running injuries (受伤) when they push themselves too bad. The body needs time to get used to increase in distance or speed.     2    

Listen to your body. Most running injuries do not come unexpectedly (意外地).     3    

They may include body aches, sore muscles (肌肉) and pain that does not go away.

    4     There is no single best shoe for every runner. You should find the shoe that offers the best fit and support for your feet. More importantly, you should replace your shoes every 500 to 800 kilometers.

Take good notes. Take time after each run to write down what you did and how you felt. Look for patterns, things that happen over again. These notes will help you find the best exercise for you.

Cross train. As we said earlier, running is hard on your body. So physical fitness experts suggest some form of cross training to improve muscle balance and to help you stay injury free. They say, besides running, swimming, yoga, and riding a bicycle are good exercises.     5    

2 . Although most games have winners and losers, the goal of sports is not to win every game. The real goals include getting exercise, having fun, and learning important social skills, like sportsmanship.

Good sportsmanship is all about respect. Good sports (有体育精神的人) respect their teammates and also their opponents. They respect their coaches, and they also respect the referees or other officials involved in their games.     1     They shout at their teammates and they talk back to coaches or referees.

Kids usually learn sportsmanship good and bad from the adults in their lives.     2     If parents and coaches show disrespect for other fans, referees, or each other, kids will likely act the same way on the field.

    3     Some of them are very basic and easy to do, like shaking hands with other players before a game. Other examples may take a little more courage, such as acknowledging a great play made by the opposing team.

Learning good sportsmanship is important because it helps you develop an attitude of graciousness (礼貌) and respect that will carry over into all the other areas of your life.     4     Being a good sport in the classroom will eventually lead to being a good sport in the workplace.

So be a good sport in whatever you do!     5     When others see you acting in a way that makes it clear that winning isn’t the most important thing, you can move on to focusing on the important things, like having fum, getting exercise, and improving your skills!

3 . Sports performance can be influenced by many different things.     1    

There are many physical factors（因素）that play a part in sports performance.     2     The natural talent and strength of the players will make a difference. Also，it is important to get enough sleep before you are in a sports event.     3     Eating good meals is also important. When you are hungry，you cannot perform the same. You might be thinking about food when you should be thinking about the game.

of course，the more a team or a player practices，the more likely they are to perform well. The same person with the same physical abilities might just become better as he practices.

Researching your competitor can matter a lot in sports performance. Knowing their strengths and weaknesses can help you adjust how you play to give yourself a better performance against them.     4     If you can figure out where to hit the ball in tennis that would confuse your competitor，for example，then this can help you score points.

    5     If someone is very pessimistic about a game，for example，and is sure that he will lose，then he might increase his chances of doing so. If he is very nervous then he might be thinking about that instead of focusing on the game. If he is focused then he might do better，achieving what he didn't even realize he could. His confidence can also affect how the other team views him.

4 . Basketball is a great sport that is not only fun, but also brings children many benefits in different ways.     1    .

Playing basketball has physical benefits. Children are full of energy—they need to move, jump and run constantly. Basketball will allow them to control that energy in a positive way. It’s a full-body sport.     2     Since it’s a fast and dynamic sport, children need to follow the game and the continuous movement of the ball. The ball moves quickly from one side of the court to the other and the kids move at the same pace which helps improve both resistance and speed.

Playing basketball has cognitive (认知的) benefits. Children who practice playing basketball develop skills that help them fight against opponents and move around the court. This sport helps them increase their ability to concentrate.     3     Children will learn to assess surrounding situations and problems that may arise, and then find the best and fastest solution. The fast pace of the game encourages quick decision-making and stimulates their concrete and abstract thinking.

    4     Since it’s a team sport, basketball promotes sociability, coexistence and respect among peers. It’s ideal for shy children because they will have to learn to interact with other players. This is important both to get better at the sport and to have more fun. They will also learn important values like cooperation, teamwork and competitiveness.

    5     In fact, there are many other benefits. The most important thing is that it’s a very fast and fun sport. This tends to make the vast majority of children enjoy it.

How Fit Are Young Teens?How often do you exercise? A new study finds that most kids ages 12 to 15 aren’t getting enough physical activity.     1    U.S. fitness guidelines recommend (推荐) an hour or more of physical activity every day. According to the study, only 1 in 4 U.S. kids meet the recommendation. Few kids in the survey met the guidelines for physical activity that raises the heart rate and makes you breathe harder. However, most of those kids said they did at least an hour of exercise at that level during the previous week.     2    The study found fat teens were less active than normal-weight girls and boys. Overweight girls were slightly less active than normal-weight girls.     3    “There’s always room for improvement,” said health expert Tala.     4     She also said the results provide useful information to help with fitness campaigns such asLet’s Move, which was launched by First Lady Michelle Obama. To inspire kids to eat right and get in shape, the First Lady visits schools and holds exercise events. She also calls on schools to offer regular gym classes.The research suggests kids who get physical education may get better grades.     5    

6 . Training for a marathon (马拉松) requires careful preparation and steady, gradual increases in the length of the runs.     1    , buy the best-fitting running shoes you can find. No one can say which brand will work best for you or feel best on your feet, so you have to rely on your experience and on the feel of each pair as you shop. When you have found shoes that seem right, walk in them for a few days to double-check the fit.     2    . As always, you should stretch (伸展) at least ten minutes before each run to prevent injuries.

During the first week, do not think about distance, but run five minutes longer each day.     3    , it is wise to take a day off to rest. But during the next week, set a goal of at least a mile and a half per run.     4    . After two weeks, start timing yourself.     5    . Depending on the kind of race you plan to enter, you can set up a timetable for the remaining weeks before the race.