1 . Rushing down the path, the traceur (跑酷者) is on the lookout for his next obstacles such as fire escapes, walls, or fences. As soon as he realizes a massive brick wall stands between him and where he wants to be, he unintentionally grabs on the wall with his hands and lifts himself to stand on top of it. His next move is a jump that lands him back on solid ground; however, noticing that he is unstable, he rolls to avoid injury.

Traceurs are athletes who perform remarkable gymnastics actions in urban environments. Serious traceurs are fascinated not just by the physical challenges of Parkour, but by its philosophy. Those who learn to excel at Parkour claim to develop not just physical fitness, but increased self-confidence and critical thinking skills, as they train themselves to find ways around every obstacle in their paths.

Because of these philosophical foundations, Parkour is often described by traceurs as more of a lifestyle or an art form than a sport. Passionate traceurs are determined to keep Parkour from becoming a competitive attempt. Competition, they argue, devalues the philosophical theory behind Parkour. People who practice Parkour should be more concerned with their relationship to the environment than with a ticking clock, a score, or a cheering crowd. Furthermore, traceurs should work with each other to improve confidence, awareness, and unity. Competition, they argue, only brings about feelings of conflict and disharmony.

While Parkour purists suggest that the philosophy behind Parkour helps to limit injuries, they must remember that not everyone who tries to leap over a mailbox is an experienced traceur trying to get in touch with his or her environment. Adolescents attempting to carry out these acrobatic (杂技的) skills could severely injure themselves. So while newcomers to Parkour might be eager to investigate this art of movement, it would be wise for them to remember the physicality behind the philosophy. After all, philosophy is not much good to a broken leg.

Bicycles have long been     1    (use) for transportation in China. Cycling     2     can be done individually as well     3     in groups has     4    (large) been free from restrictions.

But recently, cycling-the activity or sport of riding a bicycle for exercise-     5    (become) popular among the country’s urban middle class. The pandemic has played     6     part in cycling’s growing popularity as officials moved quickly to close some businesses,     7    (include) gymnasiums.

“With the pandemic... it seems to be the only way for us     8    (run) away from the terrible city life...” a cyclist Yang Lan said, adding, “What you are investing in is     9    (you) own body and a very good workout habit.” Increasing demand and worldwide supply chain problems mean that people wanting to buy bicycles must wait     10    (week) or months to get one.

4 . Playing sports at school makes people “grittier” and harder working, boosts the chances of achieving long-term goals, and having successful careers, say scientists. The Ohio State University team analyzed National Sports and Society Survey data on almost 4, 000 men and women across the US and asked study participants to rate themselves on a scale of 1-5on eight statements. They included “I am diligent. I never give up.” And “I am a hard worker”. None of the statements was directly related to sports. 34% of those who did sports as a youngster scored high on the grit scale, compared to 23% of peers who gave up. One in four of those who never played sports ranked low, compared to just 17% of those who did. Lead author Dr. Emily Nothnagle said practicing drills on the field can improve pupils’ lives for decades, adding “The grit they develop from playing sports can help them for the rest of their lives”.

The findings, published in the journal Leisure Sciences，were supported by more sophisticated (复杂的) statistical analyses that accounted for respondents’ demographic (人口的) characteristics. But it appears only children who keep at it-and play continually—get the benefit, say the researchers. Some may just be born with the grit to help them succeed at sports as a young person and then continue to benefit from that trait as an adult. “Quitting could reflect a lack of perseverance, which is a crucial component of grit,” said a researcher. “It could also make quitting an activity, and not persevering, easier the next time.”

Adults who played sports as kids generally perceived the experience helped improve their work ethic, and that perception was linked to their grit scores as adults even though the researchers said people can gain or lose grit throughout life.

9 . Common Mistakes New Runners Make

Running is a great way to get in shape and just about everyone can do it. However, many make a number of common mistakes, which can interfere (妨碍) with training or lead to injury.     1     , keep these things in mind to help you increase your chances of running success.

·Doing too much too soon

One of the biggest mistakes new runners make is doing too much too soon. Slowly easing into a training program will help reduce the risk of injury, so you can continue on with your new running routine     2     .

·     3    

Beginners might think they need to run every day (or nearly every day) to meet their fitness or weight-loss goals, but this couldn’t be further from the truth. Running is a high-impact activity which can be really hard on your body. So it’s important to give your body a rest between workouts.

·Not wearing the right equipment

    4    , it’s important that you wear properly for your workouts. The most important piece of equipment for running is a good pair of running shoes, so be sure to do some research before you purchase a pair. Visit a running specialty store and ask an employee to fit you for a shoe.

•Running through pain

    5     If something hurts when you run, you need to stop and treat the pain. Remember: It doesn’t make you less of a runner if you listen to your body to keep it healthy.