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A supersolid is a unique state of matter governed by the principles of quantum mechanics. In this state, particles form an organized, crystal structure like a solid, yet they can move freely and fluidly like a liquid without stickness. The lack of stickness means that supersolids can quickly pipe themselves out of any containers.

Ordinary solids are typically static and do not move on their own. However, supersolids possess the ability to change direction and density based on particle interactions while still keeping an orderly network structure. The formation of supersolids requires extremely low temperatures, usually close to absolute zero (minus 459.67 degrees Fahrenheit or minus 273.15 degrees Celsius).

While supersolids have been previously created from atomic gases, the recent research employed a novel mechanism involving "polariton (极化子) " systems. Polaritons are multiple particles formed by the strong coupling of light and quasiparticles (准粒子) through electromagnetic interactions. These polaritons can concentrate into the lowest possible energy state, similar to certain atomic gases. Namely, light is combined with matter, and together, they can be condensed into a supersolid.

The study of supersolids is crucial because it allows us to observe the effects of tiny interactions between particles without the interference of temperature. By examining the behavior and characteristics of supersolids, we gain insights into the fundamental ways in which atoms and particles are organized. This knowledge helps us understand the world at a basic level.

With further research and development, supersolids hold great potential for various applications. They could be used in quantum computing, superconductors, frictionless oils, and potentially many other applications that we have yet to imagine. The creation of a supersolid from light represents a significant leap forward in this field.

The Wright children were expected to work hard. When they were young boys, their father Milton brought home a flying toy: a propeller (螺旋桨) made of bamboo and powered by a rubber band. Fascinated with it, the boys began experimenting with it immediately. Their great curiosity was restrained only by their lack of mechanical know-how.

As the boys grew, all mechanical things fascinated them. They were especially interested in bicycles and printing presses. Unfortunately, Susan died in 1889. Later, when the family struggled financially, the brothers dropped out of school and put their hands and minds to work. They published a weekly newspaper and opened a company, selling and repairing bicycles.

The business was successful enough to fund their flying experiments. It's easy to imagine the brothers working long hours on bicycles during the day and assembling propellers, gears and motors in the back workshop in their off time. They spent hours on the beach watching birds glide (滑翔). They made sketches and obsessed over the details of materials, dimensions, rotor spin and weight. Their work continued for more than a decade until they finally developed their dream: an airplane.

When it came time to test their first full-scale model in 1903, their father was anchored to the earth with doubts. He couldn't bear the thought of losing his sons, so he made them promise never to fly together — that is, if their experiment ever got off the ground.

There are always two choices on the shelf when we reach for the milk, cheese or yoghurt: normal or light. Less fat is better, right? But what about the goodness that can be found in dairy — Is it all there in the reduced-fat version? Five experts from various fields were asked if light dairy products were better for our health. Here are their detailed responses.

Caryl Nowson, Nutritionist

Switching from full-fat dairy products to low-fat reduces energy intake, thereby preventing weight gain as well as reducing saturated fat (饱和脂肪) intake. Consumption of saturated fat raises cholesterol (胆固醇) levels in the blood, which increases the risk of heart disease. So reducing saturated fat intake can assist in reducing the risk of heart disease and stroke.

Malcolm Riley, Epidemiologist

Light dairy products are great for people who want to lower their fat intake. They contain most of the nutritional benefits that can be found in full-fat dairy foods, despite containing 25 percent to 100 percent less fat than their regular dairy food equivalents. However, it is important to note that light dairy foods may be higher in some other nutrients, such as sugar. It always pays to read the nutrition tag and the ingredients list carefully.

Nicholas Fuller, Obesity Researcher

Both full-fat and low-fat dairy foods have the same benefits for our heart health. The most important thing is that a person includes dairy products in their diet, or suitable dairy-free alternatives that are calcium-enriched (富含钙质的), such as soy. Until we know for sure the effect of full-fat versus low-fat dairy on our weight and waistlines, people should stick with low-fat products as part of their daily eating plan.

Evangeline Mantzioris, Food Scientist

A recent study which followed people for 22 years found no negative link between heart health and dairy consumption — whether it is full-fat or low-fat dairy. So currently the evidence suggests that light dairy makes no difference in terms of our risk of heart disease and early death. For those who seek to manage their weight, the difference in energy intake may have a significant impact on their success.

Robyn Delbridge, Dietitian

Light dairy foods are not necessarily better than full-fat dairy foods. Overall, evidence supports the conclusion that dairy foods, regardless of fat content, involve a low risk of the potential harmful effects of high blood pressure. Fermented (发酵的) dairy such as yoghurt and cheese may be beneficial for heart health. The choice of full-fat versus that of low-fat foods should be made based on your whole diet pattern.

The first snowflakes of December floated down, painting the world outside Sarah's window white. Inside, the cozy living room smelled of pine needles and cinnamon (肉桂皮). Twelve-year-old Sarah stood on a chair, carefully hanging handmade paper stars above the fireplace — a Christmas tradition her mother had started years ago. "Each star holds a wish, Mom used to say, her eyes twinkling as she lifted Sarah to place the highest one."

This year, Sarah's wish was simple: Bake gingerbread cookies with Dad, just like before. Her father, a truck driver often away for days, had promised. No work on Christmas Eve! We'll make a mess in the kitchen, just you and me, he'd declared two days ago, kissing her forehead before heading out.

But now, heavy snow blurred the streetlights, and the clock ticked past 7 PM. Sarah's phone buzzed—a text from Dad: "Traffic jam near Pineville. Home by 8! Don't eat all the sprinkles (糖粉)!" She smiled, arranging cookie cutters in the shape of stars, trees, and reindeer. The recipe book, stained with chocolate from happier times, lay open on the table.

By 8:30 PM, the storm roared louder. News reports warned of closed roads and accidents. Sarah called Dad repeatedly, but his phone rang unanswered. She hugged her knees by the fireplace, staring at the photo on the mantel (壁炉台): Mom laughing and flour dusting her nose as Dad pretended to bite a half-baked cookie. After Mom's passing away last year, Christmas had felt hollow. "This year has to be different," Sarah thought.

Suddenly, a loud knock startled her. Through the frosted window, red and blue lights flashed—a police car! Sarah's hands turned icy. "Was there an accident?" She stumbled to the door, her socks slipping on the wooden floor.

注意：1.所续写短文的词数应为150左右；

2.请按如下格式在答题卡的相应位置作答。

Para.1

When she opened it, cold wind blew in.

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Para.2

That night, they baked cookies in the kitchen.

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1、目前周末时间安排上可能存在的不合理之处；

2、提出改进建议及理由。

注意：1、写作词数应为100个左右；

2、请按如下格式在答题卡的相应位置作答。

Let's Make the Most of the Weekends

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Ne Zha 2, China's box-office sensation, hit 10 billion yuan ($1.37 billion) in ticket sales on Thursday, including presales and overseas revenue, (signal) the huge potential of the domestic cinema industry.

Since its release on Jan. 29, the film has broken box office records, with the audience showing no signs of lessening. (direct) by Yang Yu, better known as Jiaozi, the film (employ) a novel narrative to present a heroic figure well-known in Chinese mythology.

Lai Li, a professional analyst, said that it is a historic moment to witness Ne Zha 2 becoming China's first film (reach) over 10 billion yuan in the global market. Rao Shuguang, president of the China Film Critics Association, pointed out the success proves the appeal of Chinese stories a global audience and the growing influence of Chinese culture, the industry still needs diversified themes, with more talents can fulfill their creative potential. Lynn Wu, a 43-year-old Chinese mother, told China Daily that Ne Zha 2 has sparked widespread enthusiasm. "We are (incredible) proud that China has produced so fascinating animated film. Almost everyone on my WeChat moments is discussing plans to visit (theater) and watch this movie," she added.

While I was wondering what was wrong, I became2 that someone was walking by my side — a man of about 30, poorly dressed, collarless and hatless. A3, I thought, and was about to put my hand in my4. "He's got a tick, poor puppy," he pointed to my dog. "Come along, we'll have it out."

He5 me with "Du", which in German is used only among people who are very close,6 there was such warm friendliness in his gaze that I took no7 at his familiarity. I followed him to a park bench and sat down. He called the dog with a8.

And, strange to say, my Kaspar, who was usually scared of strangers, responded9, and put his head on the man's10. Searching the dog's fur with fingers, the stranger finally shouted "A-ha!" and began what must have been a painful11, for Kaspar howled bitterly several times. Suddenly the man released him. "Here it is," he laughed, proudly holding the12 in the air. Now run along, doggie."

Off he went. His13 was so sudden that it did not occur to me until later that I should have given him something, or at least should have14 him.

I stood in silence for a moment, watching the stranger fade into the distance. It struck me how a simple act of kindness could create an instant15 between strangers.

Habits play a crucial role in shaping our daily lives. From the moment we wake up to the time we go to bed, many of our actions are driven by routines we barely think about.Psychologists, however, have spent decades studying how habits form and how we can use this knowledge to create positive changes in our lives.

Psychologists have identified a universal pattern in habit creation known as the habit cycle, comprising three phases: a cue, a repeated behavior, and a reward. Take, for instance, someone who automatically reaches for snacks when bored (cue), eats cookies (repeated behavior), and experiences instant comfort (reward).

Another important factor in habit formation is the environment. Studies show that people who perform a new behavior at the same time and place each day are more likely to turn it into a habit. "Rather than relying on the willpower, which comes and goes, successful habit change depends on designing an environment that encourages the behavior," explains Dr. Lisa Carter, a behavioral psychologist.

Many people believe it takes exactly 21 days to form a habit, but research suggests that the time varies widely depending on the complexity of the behavior and the individual's personality. Some simple habits can form in a few weeks, while others may take several months. The key is persistence and patience.

If you're looking to change your habits, start small and build gradually. Set clear cues, establish a routine, and ensure there is a reward to reinforce the behavior.By applying psychological principles, you can take control of your habits and shape a healthier, more productive life.

A. This cyclical process gradually strengthens the habit, making it automatic.

B. Yet few of us stop to consider how these habits are formed.

C. Such repetition demands considerable mental effort to keep.

D. Without a stable environment, new habits are unlikely to stick.

E. One common question about habits is how long they take to form.

F. Many people mistakenly believe that willpower alone is enough.

G. Small, consistent actions are more effective than sudden drastic changes.

Unlike conventional recycling, which demands energy-intensive processes (exceeding 250℃) to melt plastics and produces useless materials, PETase Plus operates under mild conditions. By degrading PET's molecular bonds, it breaks down plastics into base components that can be re-integrated into high-quality products or even biofuels. According to Dr. Liam Harper, lead author of the study, "This method cuts energy consumption by 60% and carbon emissions by 80%, offering industries a cost-effective and eco-friendly alternative to traditional methods."

However, critics caution against unchecked optimism. While PETase Plus excels in controlled lab environments, applying it for industrial or environmental use risks unintended ecological harm. Dr. Emily Carter, a biochemist, warns, "Engineered enzymes released into landfills or oceans might also degrade natural polymers, destabilizing soil structures or marine ecosystems. Without proper restrictions, the solution to plastic waste could become an ecological disaster."

Ethical conflicts further complicate its adoption. Environmental advocates insist plastic manufacturers — responsible for 70% of global PET production — should fund large-scale application of the technology. However, industry leaders argue that governments must provide financial support to encourage innovation. Meanwhile, developing nations, where waste management system is underdeveloped, view PETase Plus as a potential lifeline, though fears spread that wealthy countries might not share the technology.

As research advances, PETase Plus is facing a challenge: a scientific success shadowed by ethical and ecological dilemmas. Its success relies not merely on biochemical efficiency but on multi-party cooperation to balance innovation with caring for our planet.

Unlike many Western fantasy games, which draw inspiration from European myths, Black Myth: Wukong presents a world filled with Chinese folk tales, Taoist philosophy, and Buddhist symbolism. The game's artistic design, from its landscapes to its supernatural creatures, reflects traditional Chinese aesthetics. Additionally, the developers have worked hard to ensure that the combat system and storytelling remain faithful to the spirit of the original novel while making them accessible to a global audience.

Despite its widespread popularity, the game has sparked discussions among different groups. Some Chinese players take immense pride in seeing their cultural heritage represented in a high-quality video game, believing it could introduce international audiences to Chinese mythology. Others, however, worry that certain adaptations may oversimplify or commercialize the story, reducing its philosophical depth to mere action and visual wonders.

Dr. Lin Zhi, a cultural analyst at Beijing University, points out: "The success of Black Myth: Wukong could mark a turning point for Chinese game developers, proving that homegrown games can compete on the world stage. However, whether it will truly deepen global appreciation for Journey to the West remains to be seen."

While debates continue, one thing is certain: Black Myth: Wukong represents more than just a game. It is an effort to reinterpret Chinese mythology for a new generation, illustrating how digital entertainment can bridge cultural divides.

During those long months of isolation, people developed what they thought were temporary coping mechanisms. Some planted small gardens on balconies, others mastered the art of bread-making, and many discovered the joy of daily neighborhood walks. What surprises us isn't that these activities helped through difficult times, but rather how reluctant people are to abandon them although restrictions are lifted.

My neighbor Sarah, who never showed interest in gardening before, still tends to her balcony garden even though grocery stores operate normally now. "These tomatoes aren't just about food anymore," she explains, her hands covered in soil. "Watching something grow gives you a sense of progress, of moving forward, even when everything else feels uncertain."

The most striking change is in how people value their time. Many realize that their previous definition of "being busy" often meant being disconnected-from themselves, their families, and their immediate surroundings. While video calls initially felt like a poor replacement for real interaction, they unexpectedly brought some families closer, establishing regular virtual dinner dates that continue even though travel is possible again.

Local communities strengthen in unexpected ways. The neighborhood chat groups that formed to help residents in need during lockdown evolve into active social networks. People who lived on the same street for years without speaking now organize weekly farmers' markets and community events. These connections, born from necessity, become vital threads in the fabric of daily life.

Perhaps the most significant shift is in people's approach to work-life balance. The proof that remote work is viable for many jobs leads to widespread questioning of traditional office culture. Companies that insist on returning to "business as usual" find themselves losing talents to organizations that embrace flexibility. People aren't just seeking higher salaries; they pursue arrangements that allow them to maintain the positive changes they discovered during the pandemic.

Now, as we move further from the height of the crisis, these changes become woven into the texture of our lives. The pandemic, for all its hardships, teaches us that resilience isn't just about enduring difficulties—it's about learning to flourish in new ways.

The Metro Science Museum proudly announces its Weekend Science Workshop tailored for young enthusiasts aged 10-16. This immersive two-day program delves into astronomy and space technology through a variety of activities, blending theoretical knowledge with practical experimentation. Participants will engage in interactive lectures, hands-on experiments, and supervised space observations using advanced telescopes.

Workshop Highlights:

Star Navigation: Analyzing ancient star maps and applying principles used by early explorers to chart unknown places.

Rocket Engineering: Designing, constructing, and launching small rockets to study engineering data.

Virtual Galaxy Exploration: Exploring distant galaxies in a high-definition digital planetarium (天文馆), guided by real-time astrophysical data.

Planetary Observation: Using professional telescopes to examine Saturn's rings, Jupiter's moons, and seasonal constellations.

Event Details:

The project will take place on March 9-10, from 10：00 AM to 5：00 PM at Metro Science Museum's Innovation Hub (Building C). The progamme is headed by Dr. Alan Prescott (PhD in Astrophysics, specializing in exoplanetary systems), accompanied by Dr. Lisa Cheng (Aerospace Engineer, lead designer of the Orion-7 satellite prototype).

Registration Requirements:

Applications must be submitted via the museum's official website, where they will also find detailed schedules and a list of required equipment. Participants must bring a notebook, graphing calculator, and signed safety waiver. The registration deadline is February 25 and seats are limited.

Limited to 30 attendees; priority given to early registrants.

For inquiries, email workshops@metroscience.org or call +1 (555)123-4567.