If a traditional sport bores you, it’s time to try something new! Cycling, but outdoors on city roads; surfing, but on the land; playing frisbee, but with a group of people... New sports begin to thrive with great attention     1     (pay) in support of national fitness. Nearly 1,200 young people participated in a study by Houlang Research Institute, more than 93 percent of     2     born after 2000 are interested in urban sports.

Why do young people favor new sports? Apart from keeping fit as a type of exercise, many young people pick them up to socialize,     3     (allow) them to build up their social circles. Players tend to have online group chats announcing their usual activities and     4     (simple) sharing their lives.

“The new sports are also suitable for taking photos and less restricted by venues”, Zou Qingling, the CEO of Lvmama,     5     tourism website in China,     6     (tell) China News Service. People can enjoy new sports from parks to spacious     7     (sidewalk).

The new sports are easier for new players to start,     8     other traditional sports, such as soccer and basketball, which usually require strict and complicated rules. Thus, the new sports are less     9     (compete) but could bring more fun. People have also gained a stronger passion for outdoor activities and healthier lifestyles.

Urban sports have unlocked new lifestyles in China as they reflect     10     (diverse), youth and fun. This new trend is also proof that more people are exposed to and willing to enjoy sports.

Chasing a Dream

I will never forget that November day. It was hotter than normal — too hot. My throat felt like a field of cotton, cracked with the summer heat, as I waited for the gun to fire. This was the day we had waited so long for. I looked out at the crowd; dozens of familiar faces flashed across my view. They had come for me. They were counting on me. I saw my dad set his watch, with worry and excitement on his face. Adrenaline (肾上腺素) pumped through my body, and the race began.

For the first two and a half miles, I felt great. I had never before been so ready for something. The weeks leading up to the race were filled with strictly controlled practices and a strict diet. My friends hadn’t seen me in weeks, but they understood the sacrifice required to make my dream a reality.

My dad and I had been working towards this race for three years. It was everything to me, and it was everything to my dad. He was a runner and was excited by my success in running. He made it to every race, even flying home early from business trips to see me run. I always listened for his voice — telling me to relax my arms, calling out my time. He pushed me. He cheered for me. He believed in me. We spent countless hours on the sandy canals. Breathing in the dust of the desert, the blossoms (花簇) of the orange trees, we made our way across the city. We pounded miles and miles into our running shoes, marking with every step the path to greatness.

But without warning, when I was 200 yards away from the finish line, my legs stopped working. My lungs fought to take in enough air, and my feet transformed into cement (水泥) bricks. I still don’t know what happened in those last few moments. Nothing I could do would make them hold my weight. They were as weak as jelly.

Even though I knew my dreams of victory were destroyed, I had to finish the race.

“I’m so sorry I disappointed you,” I whispered to Dad.

5 . The rate of childhood obesity in the U.S. has tripled over the past 50 years. But what this trend means for children’s long-term health, and what to do about it (if anything), is not so clear.

The American Academy of Pediatrics (AAP) made waves this year by recommending that doctors put obese kids as young as two years old on intensive, family-oriented lifestyle and behavior plans.     1     This advice marks a shift from the organization’s previous stance of “watch and wait,” and it reflects the AAP’s belief that obesity is a disease and the group’s adoption of a more proactive position on childhood obesity.

Yet the lifestyle programs the AAP recommends are expensive, inaccessible to most children and hard to maintain — and the guidelines acknowledge these barriers. Few weight-loss drugs have been approved for older children, although many are used off-label.     2     And surgery, while becoming more common, has inherent risks and few long-term safety data — it could, for instance, cause nutritional deficits in growing children. Furthermore, it’s not clear whether interventions in youngsters help to improve health or merely add to the stigma overweight kids face from a fat-phobic society. This stigma can lead to mental health problems and eating disorders.

Rather than fixating on numbers on a scale, the U.S. and countries with similar trends should focus on an underlying truth: we need to invest in more and safer places for children to play where they can move and run around, climb and jump, ride and skate.

    3    In 2020 the Centers for Disease Control and Prevention found, unsurprisingly, that kids’ sports participation increases with their parents’ incomes: about 70 percent of kids whose families earn more than $105,000 a year participate in sports, but only 51 percent of middle-class kids and 31 percent of children at or below the poverty line do. This disparity hurts people of color the most. More than 60 percent of white children, for instance, participate in athletics, but only 42 percent of Black children and 47 percent of Hispanic children do. Experts blame these problems on the privatization of sports — as public investment in school-based athletics dwindles, expensive private leagues have grown, leaving many kids out.

According to the U.S. Department of Health and Human Services’ Physical Activity Guidelines for Americans, children between ages six and 17 should get at least an hour of moderate to intense physical activity every day. Yet only 21 to 28 percent of U.S. kids meet this target, two government-sponsored surveys found. The nonprofit Active Healthy Kids Global Alliance evaluates physical activity in American children, and in 2022 the group gave the U.S. a grade of D–.

Why is it so hard to get kids moving? In addition to fewer opportunities at school, researchers cite increased screen time, changing norms around letting kids play outdoors unsupervised, and a lack of safe places for them to play outside the home.

New York City, for example, had 2,067 public playgrounds as of 2019 — a “meager” amount for its large population, according to a report from the city comptroller — and inspectors found hazardous equipment at one quarter of them. In Los Angeles in 2015, only 33 percent of youths lived within walking distance of a park, according to the L.A. Neighborhood Land Trust. Lower-income neighborhoods tend to have the fewest public play spaces, despite often having a high population density.     4    

Kids everywhere need more places to play: trails, skate parks and climbing walls, gardens and ball fields, bike paths and basketball courts. Vigorous public funding to build and keep up these areas is crucial, but other options such as shared-use agreements can make unused spaces available to the public.

When I entered my first rodeo (牛仔竞技比赛), I was 12 years old. It was more like a play day than a rodeo, but to a 12-year-old girl like me, I felt like I was at the National Finals Rodeo!

As to barrel racing (绕桶赛), I didn’t know much about it, only what my dad had told me. But I had been determined to enter the play and win the play ever since I was told that my not so much older competitive cousin Courtney would be there. This was my night to finally show her that I could ride a horse just as good or better, and do anything else she could do. She was in for a surprise!

Courtney always thought she was better than me. She always said her horse was better than mine, too. Courtney had a Palomino horse named Buck. He was fast, and beautiful. My horse was a big Appaloosa named Zipper. He wasn’t beautiful or flashy like Buck but he was kind and willing to please the skinny little girl that fed him sugars every day after a day of riding. That was the reason I knew we could beat Courtney, because we had something she didn’t — a partnership, one we both respected.

Courtney and I were in the 12-14 age group. As I watched the men in the arena (竞技场) set the three barrels up in their places, I felt nervous and a little scared for the first time that night. Though I had previously practiced a lot with Zipper, and Zipper raced fast and made turns stably, I still got upset when thinking about racing against Courtney!

I closed my eyes, taking a deep breath. Suddenly, I felt a warm familiar hand on my shoulder. It was Dad. He smiled at me, saying, “Are you scared or nervous? Or both?” “Both, but I’m more scared that I’m going to mess up,” I replied, truthfully.

“You won’t. Just have faith in yourself, and Zipper,” Dad said.

Game over, I took Zipper to rest, giving him sugars for a job well done.

8 . As with every World Cup, at the 2022 FIFA World Cup in Qatar the players will be using a new ball. The last thing competitors want is for the most important piece of equipment to behave in unexpected ways in the most important tournament of the world’s most popular sport, so a lot of work goes into making sure that every new World Cup ball feels familiar to players.

Between shots on goal, free kicks and long passes, many important moments of a soccer game happen when the ball is in the air. So one of the most important characteristics of a soccer ball is how it travels through air.

As a ball moves through air, a thin layer of mostly still air called the boundary layer (边界层)surrounds some part of the ball. At low speeds this boundary layer will only cover the front half of the ball before flowing air peels (划过) away from the surface. In this case, the wake of air behind the ball is somewhat regular and is called laminar flow. When a ball is moving quickly, though, the boundary layer wraps much farther around the ball. When the flow air does eventually separate from the ball’s surface, it does so in a series of chaotic swirls (不规则气旋). This process is called turbulent flow.

When calculating how much force moving air imparts on a moving object — called drag — physicists use a term called the drag coefficient (系数). For a given speed, the higher the drag coefficient is, the more drag an object feels.

It turns out that a soccer ball’s drag coefficient is approximately 2.5 times larger for laminar flow than for turbulent flow. Though it may seem counterintuitive, roughening a ball’s surface delays the separation of the boundary layer and keeps a ball in turbulent flow longer. This fact of physics that — rougher balls feel less drag — is the reason why dimpled (坑坑洼洼的) golf balls fly much farther than they would if the balls were smooth.