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This scene is not science fiction. Engineers at an American tech company built a device using low-frequency sound waves to fight fires. "It's basically vibrating (震动) the oxygen faster than the fuel can use it, blocking the chemical reaction," explains Geoff Bruder, an aerospace engineer who once studied heat engines for NASA.

Fire needs heat, fuel and oxygen; taking one of these away will stop the fire. Sound waves push oxygen away from the fuel, preventing the fire getting the air it needs to continue its burning. The company has demonstrated a fire control from as far as 25 feet away.

Using sound against fire isn't new. A U. S. defense research agency studied it over a decade ago. However, a major challenge is to scale up the technology without creating loud or even damaging sound effects.

The company overcame this by using infrasound — sound waves at 20 hertz (赫兹) or lower, which humans cannot hear. These waves also travel farther than higher-frequency sounds. The device looks like a metal box attached to the roof. When heat sensors detect a flame, an electric motor drives a piston (活塞) to create infrasound, which travels through metal tubes on the roof, creating a "force field" to put out the fire and prevent the building catching another fire.

Experts note that while sound waves can effectively influence fire, they currently work best on smaller flames. Nevertheless, homeowners and large energy companies are game to give it a try: The company is working with two California power suppliers and plans to install fifty pilot units early in 2026.

Most of her classmates were kind. Still, Anne often felt set apart. In quiet moments, a sense of loneliness would wash over her — she was tired of feeling different from everyone else.

That year, the Easter Bunny brought her a basket with a special doll. The doll, Chelsea, is Barbie's sister, and she, too, wore a back brace for scoliosis. "She's just like me!" Anne cried to her mother, Nicole, who smiled as the little girl examined every detail, right down to the doll's curved spine. Anne played with Chelsea every day, bringing the doll everywhere. She felt a sisterhood with another girl like her.

Weeks later, Anne voiced a heartfelt wish: "Mom, I wish all girls with scoliosis could have this doll so they don't ever feel alone either." Nicole saw renewed determination in her daughter's eyes and helped turn the idea into a family mission. Anne's twin brother and her dad all jumped in to help. They launched their efforts by starting a lemonade stand during a neighborhood sale, and then created a GoFundMe page on the Internet.

After a local news station featured their story, the doll's maker stepped in to support the cause, supplying all the dolls they needed. What began as a goal to donate 50 dolls quickly grew beyond expectation. Now 11 years old, Anne and her family have donated more than 870 Chelsea dolls to hospitals nationwide, bringing smiles to countless children.

"Even if you feel alone, you're not," she shared. "Everybody has something. It's what you do with it that matters — so choose to help others to be strong in their journey."

Your Volunteer Role

This project is well suited to those who want to learn more about these amazing animals and help in the efforts of preserving their numbers.

As a volunteer, your key responsibilities may include:

· Daily Turtle Care: Feeding, health monitoring, and releasing hatched baby turtles into the sea.

· Habitat Maintenance: Cleaning beach areas.

· Visitor Engagement: Interacting with the public and helping design educational boards.

Please note, a high level of physical fitness is essential for this project. Meanwhile, the field work is physically demanding, as volunteers have to walk one hour to and from the project site each day.

Your Schedule at a Glance (Minimum 2-week commitment) :

The program runs from Monday to Friday, usually from 9 a. m. to 10 p. m. On beach cleaning days, sessions may be shorter due to heat as you have to work without shade.

Weekends and days off, you can choose how to spend the time, either on site and relax or take the following optional travel packages.

· 2-day Ubud Art & Rice Terraces —$125 (private car and guide included)

· 3-day Volcano Trek & Jungle Adventure —$190 (private jeep, guide and equipment included)

· 4- day Island Hopping (Nusa Lembongan) —$380 (boat transfers, guide and equipment included)

· Weekend Surfer's Coast (Canggu & Uluwatu) —$150 (private taxi and surf lesson included)

It was a sunny summer afternoon. Lila and her father were camping in the Pine Ridge Forest. They had set up their tent near a small river, and her father had taught her how to tell different kinds of trees and track small animals. Lila was having the time of her life, running through the woods, collecting pine cones and listening to the birds singing.

In the late afternoon, the sky suddenly turned dark. The wind picked up, and the leaves on the trees started to shake loudly. "A storm is coming," her father said, his voice serious. "We need to get back to the tent right now, before the rain comes." They started to walk quickly along the path back to their camp.

Just as they turned a corner, Lila heard a soft, weak sound. She stopped, her ears pricked up. "Dad, did you hear that?" she said. Her father stopped and listened. "It's just the wind, Lila. We have to hurry." But Lila heard it again-a low, sad whimper (呜咽声), coming from the bushes beside the path.

She walked over to the bushes and pulled the branches apart. There, under a bush, was a little fox, no bigger than a cat. Its left front leg was caught in a metal trap (捕猎夹), and it was shaking with fear and pain. Its big, round eyes looked up at Lila, filled with terror.

"Oh no, Dad!" Lila cried. "We have to help it!" Her father knelt down beside her, his face worried. "Lila, the storm is almost here. If we don't get back to the tent soon, we'll be stuck in the heavy rain, and it's very dangerous in the woods. The trap is strong, and it will take time to open it." Lila looked at the little fox, its leg bleeding a little, and her heart ached. She couldn't leave it here alone, to die in the storm.

注意：

1．续写词数应为150左右；

2．请按如下格式在答题卡的相应位置作答。

Paragraph 1:

"Dad, we can't leave it here," Lila said firmly, her eyes filled with tears.

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Paragraph 2:

Just as they managed to free the little fox, the first heavy raindrops began to fall.

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1．活动的时间、地点；

2．活动的主要内容；

3．邀请他参加的原因。

注意：

1．写作词数应为80左右；

2．可以适当增加细节，以使行文连贯。

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Tea is the national drink of China, with a history of over 5000 years. In recent years, tea-tourism integration (茶旅融合) (become) a new trend in rural China, combining tea culture with rural tourism to boost rural revitalization.

Anxi County in Fujian Province, the hometown of Tieguanyin tea, is a good example. For hundreds of years, local people (grow) tea here. In the past, most farmers only sold fresh tea leaves or processed tea, brought them limited income. Now, with the development of tea-tourism, the county has turned tea gardens into tourist attractions.

Tourists can come here to pick tea leaves, learn to process tea, taste different kinds of tea, and listen to stories about tea culture. Local farmers have opened family hotels and tea-themed restaurants, (provide) more jobs for villagers. "In the past, I only earned about 30,000 yuan a year from selling tea. Now, with my family hotel, my income (increase) to over 100,000 yuan a year," said a local farmer.

Tea-tourism integration not only improves the income of local people, also helps pass on traditional tea culture. Many tea-producing areas have set up tea museums and tea culture experience centers,, young people can learn about the history and skills of tea making. Some schools even work with tea gardens to set up research bases, (teach) students about tea culture.

"Tea is not just a drink. It carries (we) traditional Chinese culture and spirit," said an expert. "Tea-tourism integration gives a new life to the old tea culture, and helps build a better life for people in rural areas."

When I arrived at the center, a woman told me that my task was to2 old people in the nursing home nearby. I walked into the nursing home with a bad mood. The first person I met was Mr. Li, an 82-year-old man with white hair. He was sitting in a chair alone, looking out of the window. I said hello to him, and he3 at me with a warm smile.

At first, I didn't know what to say. I just sat there quietly. Then Mr. Li started to talk about his4. He was a teacher before he retired, and he had taught Chinese in a middle school for over 30 years. He told me stories about his students, his travels around China, and his love for classical Chinese literature. I was5 at his rich experience, and I forgot about my bad mood.

After that, I went to the nursing home every weekend. I read books to Mr. Li, listened to his stories, and sometimes played chess with him. I also helped other old people with small things, like writing letters, carrying water, or just talking with them. To my6, I started to look forward to these visits.

One day, Mr. Li gave me a7 of his favorite poem, To the Oak Tree, written by Shu Ting. He wrote it down with his own hand, and his handwriting was beautiful. "You are a young girl with a bright future," he said. "This poem tells you to be8, independent and brave. I hope you can remember it."

Two months later, I finished my 40 hours of community service. On my last day at the nursing home, Mr. Li held my hand and said, "Thank you for9 your time with me. You have brought so much happiness to my life." I felt my eyes filled with tears. I realized that I didn't just10 40 hours of service. I had gained something much more11.

That winter, I learned that community service is not just a task to12. It's about connecting with people, listening to their stories, and giving a little warmth to those who need it. Mr. Li and the other old people didn't just get my company.13, they taught me the meaning of life, the value of patience, and the beauty of human connection.

Now I am a college student, and I still go back to the nursing home to visit Mr. Li when I have time. That 40-hour community service14 my life. It taught me that the most meaningful things in life are not about what we get, but what we15.

A gap year between high school and college is a great chance to grow, learn new things and get ready for your college life. However, many students don't know how to make the most of this special time. Here are some useful tips to help you plan a meaningful gap year.

Before you start your gap year, think about what you want to get from this time. Do you want to learn a new skill, get some work experience, help others, or just see more of the world? Setting clear goals will help you make a good plan and avoid wasting your time.

Get out of your comfort zone. A gap year is the perfect time to try things you have never done before. If you are a shy person, you can try to be a volunteer guide in a museum. If you have never left your hometown, you can travel to a different province or even a foreign country. Trying new things will help you become more confident and independent.

College is not just about study, but also about developing skills that will help you in your future life and work. You can use your gap year to learn a new language, master a digital skill like photo editing or programming, or learn to cook, drive or manage money. These skills will be very useful when you start your college life.

Do volunteer work. Volunteering is a great way to give back to the society, meet new people and gain valuable experience.. You can volunteer to teach left-behind children in rural areas, help take care of old people in a nursing home, or join an environmental protection organization. Volunteering will not only make your gap year more meaningful, but also add a bright point to your college application.

Take time to reflect.. During your gap year, take some time to think about your interests, your strengths and weaknesses, and your future plans. This will help you have a clearer idea of what you want to study in college and what kind of person you want to be.

A. Learn useful life skills.

B. Set clear goals at the beginning.

C. You can choose volunteer work that matches your interests.

D. It's important to have fun during your gap year.

E. Many students come back from gap year with a clearer mind.

F. You don't need to travel far to try new things.

G. A gap year is not just about doing things, but also about thinking about yourself.

A 2025 study by the Chinese Academy of Social Sciences found that over 68% of young people aged 18-35 read less than one complete book a year, and most of their daily reading time is spent on fragmented content on social media. "Deep reading is not just about finishing a book. It's about engaging with the text, questioning the writer's ideas, connecting what you read with your own experience, and forming your own opinions," said Professor Zhang Wei, a literature expert from Peking University. "When we read in fragments, we only get the surface information, but we can't develop the ability to think deeply about complex problems."

Many people may think that deep reading is a waste of time in this fast-paced society, but it actually brings many long-term benefits. Studies have shown that deep reading can improve our concentration, reduce stress, and develop our emotional intelligence. When we read a novel, for example, we put ourselves in the characters' shoes, experience their feelings, and learn to understand different points of view. This helps us develop empathy and communicate better with others in real life.

So how can we get back the habit of deep reading? Professor Zhang gives some simple tips. First, start with a book you are really interested in, not a book that others say you "should" read. Second, set a small daily goal, like reading 20 pages a day, and stick to it. Third, turn off your phone and other electronic devices when you read, so you can focus without distraction. "Deep reading is like a muscle. The more you practice it, the stronger it gets," said Professor Zhang. "In a world full of noise and distraction, the ability to focus and think deeply is the most valuable skill we can have."

Insects play a very important role in the ecosystem. Bees and butterflies help pollinate (授粉) flowers and crops, which is necessary for the growth of plants. Ladybugs and beetles eat pests that damage plants, reducing the need for chemical pesticides. However, with the loss of natural habitat, the number of wild insects is dropping rapidly around the world. According to a 2025 study, the number of flying insects in urban areas has dropped by 60% in the past 20 years, which has a bad influence on the whole ecosystem.

Insect hotels are easy to make and can be placed in gardens, balconies, parks and even on the walls of buildings. They provide a safe place for insects to live, lay eggs and spend the winter. "Many people think insects are harmful or annoying, but most of them are our good friends," said Li Ming, an ecologist from Beijing Forestry University. "An insect hotel is not just a home for insects. It's a small ecosystem that helps keep the balance of nature in our cities. It also helps people, especially children, get close to nature and learn to respect every living thing."

In many Chinese cities, such as Shanghai, Chengdu and Hangzhou, insect hotels have been built in community parks and schools. Some schools even hold competitions for students to design and make their own insect hotels. "It's a great way to teach children about environmental protection in a fun way," said a primary school teacher in Hangzhou. "When children build an insect hotel, they not only learn about different kinds of insects, but also understand their responsibility to protect nature."

Wang Yue's grandma was a well-known paper-cutting artist in the village. When she was a little girl, she would sit beside grandma for hours, watching her turn a piece of red paper into vivid pictures of flowers, animals and folk stories with a pair of scissors. However, as she grew up, she found fewer and fewer young people were interested in this old art. Most of the paper-cutting artists were elderly people, and the skills were at risk of dying out.

After quitting her job, Wang Yue spent two years learning the basic skills from her grandma and other old artists in the village. She not only mastered the traditional skills, but also brought her modern design ideas into the art. She created paper-cutting works with new themes, such as aerospace heroes, winter sports and rural revitalization. She also made paper-cutting into stickers, bookmarks and lamp decorations, which were popular among young people.

In 2023, Wang Yue opened an online shop to sell her paper-cutting products. To her surprise, her works were very popular, with monthly sales of over 10,000 yuan. She also set up a free paper-cutting training class in the village, teaching over 50 left-behind women and young people the skills. "Paper-cutting is not just an old art. It carries the culture and memory of our nation," Wang Yue said. "I want to make it alive in the modern times, and help more people in my hometown live a better life with this art."

Welcome to the 3rd China Youth Eco-Art Festival, a national event combining environmental protection, art creation and youth practice. This year's festival will be held from July 15 to August 5 in Hangzhou, with a series of creative activities for young people aged 12-25. All activities are free to join unless noted.

Sumi's daughter Anna had always been called "Number 23." Every time the school released exam results, Anna would always end up in 23rd position among 50 pupils. Always 23, regardless of topic or term. Every time Sumi heard that nickname, it caused her concern.

When Sumi stayed with her friends, their discussion nearly always turned to their children. You know how it goes-one parent discusses their child's piano honors, another boasts about math olympiads or leadership responsibilities. While others were honoring these "great youngsters," all Sumi could think about was Anna and her unpleasant nickname, Number 23.

Sumi had done everything to help Anna with school-hired professional tutors, bought fancy stationery, even packed brain food. And Anna tried. She gave up sketching, paper cutouts, and many others. She moved from one class to another, endlessly trying. But then the indicators started showing-she lost her appetite, couldn't sleep, and sweated all the time. Eventually, she got terribly sick. That was when Sumi gave in. She stopped pressing and Anna bounced back to being the cheery little child they knew.

One day, Sumi and her friends went on a weekend trip with their families. During lunch, two kids got into a heated quarrel over a single slice of dessert. No one could calm them down. Then Anna stepped in. "Let's flip (抛) a coin," she said. Simple as that. Boom-problem solved. Everyone was astonished.

Later, on the journey back, they got delayed in traffic. The kids were getting restless. Anna? She started delivering jokes like a big sister. Even the adults laughed. Then she took the leftover candy boxes and started changing them into animals-paper elephants, lions, and birds. Before everyone said goodbye, she presented one to each youngster as a gift. The other parents were shining with appreciation. For the first time in years, Sumi felt something well up in her chest-pride.

注意：

1.续写词数应为150左右；

2.请按如下格式在答题卡的相应位置作答。

Not long after, Sumi got a phone call from Anna's class teacher.

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That afternoon, Anna returned home, the Class Star certificate in hand.

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1.你最喜欢的展品及原因；

2.你的感悟。

注意：

1.写作词数应为80左右；

2.请按如下格式在答题卡的相应位置作答。

A Visit to the Youth Science and Technology Fair

When visiting Chongqing for the first time, Joshua Guvi was worried that the city he'd seen on social media couldn't possibly be as cool in real life. However, the Canadian travel content(create) found himself completely amazed by the "8D city's" multilayered reality, where sky trains run through residential buildings what appears to be the ground floor might actually be the 12th floor.

Chongqing's growing global appeal(reflect) in Guvi's experience. He showcased the city's cyberpunk feel, which has becomesocial media phenomenon. One of his posts of its surreal architecture received over 17 million (like) on social media. This kind of online appeal has translated into remarkable growth in Chongqing: inbound tourism rocketed 184% last year, with American visitors(show) the most notable increase despite limited direct flights.

Local tourism professionals confirm this trend. Chen Ming, who(found) a travel agency last year, reports receiving hundreds of monthly bookings, of Americans account for 20%. The city's unique spatial design never fails(astonish) visitors, just as it did for Guvi, who concluded, "I wish we had stayed even(long) there." His initial concerns have clearly been replaced by strong recommendations, mirroring how Chongqing continues to surpass expectations and establish itself as China's latest must-visit destination.

I could always count on my grandfather to show me a3 way of seeing things. For a man of his age, his mind remained4 and he was always willing to learn something5. Yet, this openness didn't mean he accepted every change without reservation.

One afternoon, while we were looking up at the sky, I turned to grandpa with a6, "Isn't it incredible that we have actually sent men to the moon and back?"

"Well, yes. I don't7 the achievement," he hesitated. "But to be honest, it was a8 day for me when men landed on the moon." I was totally9 by his answer.

Grandpa went on, "Years ago, before we had such10, it was the moon that we looked to for11. We worked outside and traveled by its light; we planted and harvested by its phases; we looked to it to forecast the weather. There was something12 about it." Then he added, "But landing on it showed us there was nothing there. All I knew about the moon disappeared. The ancient guide we13 was nothing but a dead rock. That broke my heart."

Grandpa's eyes held such sadness — I just can't14 that image even now. However, when he was finished that day, I was more15 to some things I had never considered before.

Lauren says the idea came from pure desperation. But after Lauren told her daughter about this new role, she just stopped crying. "We went to school early," Lauren recalls. "She stood there with her teacher, and they just let her join in." Once the teacher learned about the idea, he was fully supportive. He said,"Whatever helps her come to school."

Since that morning, her daughter hasn't looked back. She takes her gate duties seriously. Now she's the one rushing her mom out the door each day. She tells them their parents are coming back and that it's okay.

The change didn't just ease her daughter's anxiety. Now she began to see school not as something to fear, but as a place where she belonged.

What made the story attractive isn't just the viral moment — it's the quiet beauty of a mother recognizing exactly what her child needed: a sense of purpose and pride. "She really believes she's helping those kids who are sad," Lauren says. And honestly, she is.

"Every day she's at that gate, waiting, ready to help," Lauren says. "And every morning she's the one telling me, ‘Come on, Mommy, we can't be late — I have to be there for the other kids.'"

A. She wants to feel appreciated.

B. She even helps other kids who cry.

C. It also opened up something new inside her.

D. Her daughter's mood changed almost instantly.

E. She was stressing out and didn't know what to do.

F. Now, mornings that once began in tears end in joy.

G. The experience offers a deep insight into childhood.

The stress and anxiety experienced on Monday seems to ease as the week unfolds. But is the stress and anxiety biologically distinct? Furthermore, could the fleeting changes in mood leave a mark on people's body even after they stop working? To answer these questions, Professor Tarani Chandola from HKU, looked into the phenomenon, focusing on the stress hormone cortisol (皮质醇).

When we experience a stressor, the brain activates the release of cortisol, which helps us to manage short-term stress. But constant high levels of cortisol disturb the brain and bodily systems, increasing the risk of anxiety, depression, heart disease, diabetes and obesity.

Chandola studied 3,511 participants aged 50 and older in England, and the results were striking. Older adults who reported feeling anxious on Mondays had, on average, 23 percent higher levels of cortisol up to two months later, compared with those who felt anxious on other days. And the effect was not limited to those still working; retirees who felt anxious on Mondays also showed higher cortisol.

Why might Mondays, in particular, have a powerful effect on the body? One possibility is that the shift from the weekend to the high demands of the week is essentially stressful. Also, some people become anxious on Mondays so routinely that it becomes an automatic bodily response.

For some people, Monday blues are constant stressors. Hospitals may need to plan for the increased risk of heart attacks and other health events on Mondays, especially among older adults. In addition, international practices like meditation, mindfulness, regular physical activity or good sleep might help people adapt to the start of the week and have long-term health benefits. Finally, researchers will need to investigate why some people are resilient (适应力强) to Monday anxiety while others are not. That question might open the door to interventions that help people start the week not just with a groan but with greater resilience.

The new scenery marks a major milestone in campus sustainability. In 2025, UCLA became the first university in California to earn the Green Grounds Certification from the nonprofit Re: wild Your Campus, which recognizes the school's efforts to improve human health and biodiversity.

For years, colleges have used rewilding as a way to restore biodiversity and bring a more natural look to their grounds with native plants. But too often, they miss a critical piece of the puzzle: the chemicals being used elsewhere on campus. While wildflowers bring buzzing bees, true ecological restoration is weakened if pesticides (农药) and fertilizers are used.

This is why Re: wild Your Campus created the Green Grounds Certification-to center both chemical elimination and rewilding and to link them together. Schools that are taking such a holistic approach to campus management can be honored and uplifted.

Adopting a holistic approach to land care does more than just create healthier campus environments; it reinforces the reality that colleges are interconnected microcosms (缩影) of larger environmental systems. In many cities, universities offer some of the largest areas of open space, yet the chemicals applied to grasslands can impact nearby rivers, lakes, and drinking water. Students and all the teaching staff are increasingly recognizing this, leading to more advocacy for introducing native species and stopping using harmful pesticides.

Beyond environmental health, a rewilding approach can help safeguard human health. Students are closely connected to the outdoor settings of their colleges where pesticides can stay in the air, settle on picnic tables, and be tracked into dorm rooms. Through a holistic approach, institutions can ensure that the grounds students walk on daily are free from poisonous substances, for the health of all.

And that's exactly what some schools like UCLA are doing. Their leadership shows that sustainability means finding new ways to care for the land responsibly-for people and for the planet.

"In those first two weeks I was thinking: ‘What have I done?'" James said. "I had horrible blisters (水泡) for the first 10 days. The gout (痛风) struck all of a sudden, but I took some medicine and it went away. Now I feel fine."

James's progress along the coastlines of Great Britain is being tracked by experts from the University of Exeter, who are keen to find out the effects of such an extreme challenge on an older person.

The challenge is to do, on average, a marathon every day. Some days, it might be a bit less; others a bit more. There is no set route. James has a plan but adapts and changes it. As for fuel, he is not following the sort of diet an exceptional athlete might adopt. He has cereal, bacon, cake and fish and chips for dinner, washed down with a couple of beers.

"It's all about routine, about getting up and leaving at the same time," said James. "I love the physical challenge. I'm not especially talented at things, but I can keep going."

The Exeter researchers assessed James before his departure and he sends data daily for them to analyze. They are studying his calorie intake, oxygen levels and muscle measurements. He has lost about 10kg but the team has seen no ill-effects to his health.

James, who is raising money for Cancer Research UK, passes the time by listening to music and is also learning Welsh. By the time he gets to Wales, he hopes to be able to order a beer in the language. He thinks the most difficult stretch physically will be the north coasts of Devon and Cornwall. "I'm kind of hoping that by then my body will be completely conditioned and I'll be able to cope with that."