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The free flow of traffic becomes unstable as the density (密度) of cars increases on a highway. At 15 vehicles per mile per lane, one driver tapping their brakes can trigger a wave of jam. "It's a kind of phase transition," like water turning from a liquid to a solid form, says Katsuhiro Nishinari, a mathematical physicist at the University of Tokyo who studies these jamming transitions.

Ants can maintain their flow even at high densities. So what's their secret? In a recent study, researchers recorded ants on trails, using traffic-engineering models to analyze their movement. What did they find? The ants travel in groups of three to twenty. They move at nearly constant rates. They keep good distances between one another. And they do not speed up to pass others.

Human drivers at rush hour are hardly likely to follow such rules. "We're maximizing the interests of individuals. That's why, at a given point, you start to have a traffic jam," says study co-author Nicola Pugno. But self-driven cars, if they one day become common, could have more cooperative programming. In one vision of this future, autonomous vehicles would share information with nearby cars. This would improve traffic flow, perhaps, the researchers suggest, by prioritizing constant speeds and headways or by not passing others on the road.

This vehicle network would be similar to ant trails. The insects use scent to control behavior while interacting with one another. "There is no leader," but this organization emerges anyway, says Noa Pinter-Wollman, a behavioral scientist studying ants at the University of California, Los Angeles. And in both ant and vehicle traffic, this type of distributed system can be "very, very strong" and flexible, Nishinari says.

Today's drivers can learn at least one thing from ants. By leaving room between their car and the one ahead of them, drivers can absorb a wave of braking in dense traffic conditions that would otherwise be grown into a big traffic jam with no obvious cause. "Just keeping away," he says, can help traffic flow smoothly.

Fotiaoqiang, also known as "Buddha Jumps over the Wall", gets its name from a legend that its irresistible scent could tempt even a vegetarian Buddha to leap over a wall for a taste. This luxurious dish mixes expensive ingredients like abalone (鲍鱼), chicken, and mushrooms, which are slow-cooked for hours or even days to blend rich flavors. Dating back to the reign of Emperor Tongzhi (1862-1875) of the Qing Dynasty, it is often served at special events, symbolizing wealth and hospitality. The original recipe was created at Juchunyuan restaurant in Fuzhou, the capital city of Fujian.

"For many overseas Chinese, fotiaoqiang is a must at Spring Festival feasts," said Wang Yue, deputy general manager of Fuzhou Juchunyuan Group. Now, they are processed following the standards for ready-to-cook foods and then, they are distributed via a cold chain system. This keeps the traditional flavor preserved. It would have been very difficult to make and export Chinese delicacies like fotiaoqiang in large quantities due to the complexity of the traditional cooking method. The maturing of the ready-to-cooking food business has presented new opportunities for Chinese catering (饮食) companies to break into overseas markets, according to Wang.

There are around 60 million overseas Chinese worldwide. This means there is huge potential for the export of Chinese foods. China's abundant supply of agricultural produce, rich food culture, stable industry and supply chain, and policy support from local authorities in recent years, havecollectively laid solid groundwork for taking ready-to-cook Chinese foods globally.

In June, Fujian province hosted a special event for more than 40 suppliers. They were able to connect both online and offline with representatives of over 10 buyers from the US and Canada. This will help take the country's food culture further to the world.

Of both French and Indian background, she had a gentle, soft touch. All her life, Mom was there for me; although now a grown woman, I still needed my senior parent for advice and comfort. We were the best of friends, and over the years, we shared, laughed and cried together.

I often found myself wearing her red sweater, which had been Mom's favourite, and it was faded and worn from years of use. To cope with my grief, I would imagine my mom wearing the red sweater and reaching out to comfort me. Her warm hands, worn and shrivelled (干枯) from age and work, had cared for a large family, and brought life to plants and flowers.

Mom lost both her cultures when she married my father, a white man, and moved from her island to live on his. When she arrived in isolated and rural Cardigan at the age of eighteen, she began to learn English. Sadly, her knowledge of both French and her native Chinook began to fade away.

One of my favourite memories are the native powwws (帕瓦仪式) we attended on Panmure Island. FirstNations people from all over North America travelled there to participate in the powwows. It was an opportunity forMom to mingle with the First Nations people, wear her native shirt, dance in the sacred circle and socialize. She loved going to those powwows and I remember her proudly telling an elder once, "I'm Indian, too." Although she had moved into the white man's world when she married, she never lost her Chinook heritage of strong native spirituality, deep respect for the land, and love for the outdoors— all of which she passed on to me and my eight brothers and sisters.

Now, her image travels with me when I feel grief and pain. She always wears the red sweater and for an instant, our hands join. Death has not separated us.

Canadian Centre for Architecture

The Canadian Centre for Architecture is a fascinating museum and research centre where you can learn all about industrial design. There's a permanent collection of books and handicrafts prospective designers may be interested in, including some activities for children. One of the most important aspects of this museum is the sculpture garden where you'll find a variety of different installations depicting various aspects of architectural design and style.

Open: Wednesday—Sunday from 11 am to 6 pm.

MAC

The MAC (Musée d'art contemporain de Montréal) is a fun contemporary art museum that lets you explore art created more recently. It is also the first museum in Canada dedicated to contemporary art, opening in 1964．Inside this museum, you'll find a collection of works from more than 1,500 artists, most of whom are still living. In total, there are around 7,000 works of art on display. Most of the works come from Quebec or greater Canada. Various mediums like paintings, sculptures, photos, and video works are on display.

Open: Tuesday—Sunday from 10 am to 7 pm.

Montreal Science Centre

The Montreal Science Centre offers fun for the whole family with interactive exhibits you and your kids can enjoy. The permanent exhibitions here are quite varied, showcasing different ways of harnessing energy, space exploration, and the history of human evolution. Families can particularly enjoy what this museum has to offer thanks to interactive exhibits like the Life-Sized Science activity that lets your kids use their entire body to explore.

Open: Monday—Friday from 9 am to 4 pm, Saturday— Sunday from 10 am to 5 pm.

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.