相关试卷

A study in Nature Ecology & Evolution reported that over 20 bird species across four continents make nearly identical high-pitched (高音调的) "whining" calls to warn others of birds like cuckoos nearby. Cuckoos are brood parasites — they lay eggs in other birds' nests, often pushing out the hosts' own eggs, to trick host birds into raising their chicks. According to co-lead author James Kennerley, this call works as the word for "cuckoo" and appears to be understood across species, offering clues about how language may have originated.

Birds producing this alarm call often live in regions with high numbers of brood parasites that target multiple host species. Hearing the call, potential hosts react aggressively to drive the invaders away.

To investigate further, Will Feeney's team played recordings of such alarm calls — originally from birds on other continents — to potential host birds in Australia and China. They found that the hosts responded just as quickly to foreign alarm calls as to their own. "This indicates that sound helps communication between species, not only within one species," explains Feeney. He suggests that while many bird species may respond to certain alarm sounds, those in parasite-rich areas have adapted the call to carry clear threat information.

Back in 1871, Charles Darwin suggested that spoken language might have evolved from the imitation and modification of instinctive (本能的) sounds — for example, a scream in response to pain. Feeney notes, "Birds changing their built-in calls for a new use could be an early stage toward language, something once thought uniquely human. "

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.

The familiar smell of garlic, soy sauce, and onion spread through the air as I opened my lunch bag to see what my mom had packed for me. On any other occasion, I would have been delighted to eat my mom's braised pan- fried tofu: a Chinese dish that I often ate for dinner. But not today, the day a nice girl had invited me, the new girl at school, to sit with her friends during lunch.

"Charis, over here!" My new friend was waving her arms, trying to get my attention.

As I prepared to walk over to the table, memories of elementary and middle school lunch times resurfaced. I remembered my embarrassment as my friends would hold their noses, or stay away from me when I brought homemade Chinese food, tofu. I remembered how my embarrassment shifted to anger when I complained about the smell to my mom.

I had argued with my mom that I wanted "normal" food for lunch. I remembered the look on my mom's face, a mix between disappointment and confusion. But I was determined and she gave in because she worried about my making new friends every time we moved. So for the remainder of middle school, my mom packed odorless (无味的) , non-Chinese fare like ham and cheese sandwiches. However, that day, she was in a rush to get to her new job and packed me leftovers from dinner.

As soon as I got to my new lunch table, I tried to hide my bright lunch bag under my seat before anyone noticed the strong smell. I looked up to see the other girls at the table, opening their normal American lunches. I sat quietly, trying not to be noticed when Katrina, a new acquaintance, asked where my food was.

"I'm not really hungry," I replied in an insecure voice. But Katrina had already seen me carry my lunch so she said, "Then, I'll eat it!" The other girls laughed — apparently Katrina was known to be the lunch scavenger.

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。

I didn't want to be rude to a new friend, so I reluctantly dragged out my lunch bag and unzipped it.

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It took me a second to recognize that my homemade Chinese food was not being rejected.

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Xiao Xue, the 20th of the 24 solar terms, usually falls on November 22nd or the nearby days, (indicate) the beginning of the colder weather and the approach of snow. Xiao Xue literally means "minor snow." During Minor Snow, it starts to snow lightly in many places, (especial) in northern China, and the temperature continues to drop.

The name "Minor Snow" suggests that the snowfall at this time is not heavy, it's a sign that colder weather is coming. In ancient China, people (observe) the changes of nature during Minor Snow and divided it three phases: the disappearance of rainbows, the hiding of vitality by living things, and the withering of forests.

There are also many traditional customs which (associate) with Minor Snow. For example, people in northern China like to store vegetables like Chinese cabbage, radish and (potato) in the cellar (地窖). In southern China, people start making sausages and cured meat. Fishermen begin to dry fish for the winter, and the neat (arrange) of dried, salted fish in the winter sunshine is a vivid picture of early winter.

In addition, Minor Snow is a time for families (gather) and enjoy delicious food. There's a special liquor during Minor Snow called "Light Snow Liquor" is made with the clearest spring water and tastes delicious on a cold winter day.

Her life changed3 thanks to the compassion of a stranger, Tamie Konzier, who noticed Betty struggling while serving her family at Eat'n Park.4 by Betty's spirit, Konzier decided to take action. Instead of just leaving a generous5, Konzier wanted to make a real difference. She shared Betty's story online and encouraged6 through a GoFundMe campaign. What started as a single act of kindness quickly captured the7 of thousands.

Within 24 hours, contributions8 from strangers moved by Betty's story. The total rapidly9. People across the country were inspired to support someone they had never met, showing the power of human empathy in action. When Konzier returned with her son to10 the funds, the total had reached a(n)11 $328,739.18. Betty, overwhelmed with gratitude, now has the ability to cover bills, enjoy her golden years, and live a life she could not have imagined before this act of12.

Betty's story13 us that empathy doesn't require fame or a platform. Simple and14 acts can create change far beyond what we imagine. In a world often focused on hustle and competition, moments like these15 as examples of humanity at its best.

Many people have met someone who always makes situations stressful and hopeless.. That's because they likely don't see a problem with their behavior. Here are tips to handle this kind of people and keep your own mind calm.

Avoid getting defensive. Stay calm, and be aware that you will never win in an argument with impossible people — they are referred to as "impossible" for a reason. In their mind, you are the problem.. They feel that your opinion doesn't matter because you are guilty, regardless.

Try to ignore them. Even if you cannot avoid impossible people in your daily life, don't think about them on your "off" time. Remember that stressing about the person all the time is the same as giving them your precious time when they don't even care about you.. That way you aren't wasting time by thinking about what the person said or did constantly.

. Impossible people offer valuable life experiences. After dealing with them, you will be able to get along with most other people more easily. Try to keep perspective, and realize that what may seem crazy to you may be another person's only way of coping. Try to view these communications as a way to build strengths.

Be careful not to copy the bad habits of people who are impossible to deal with. You often learn behaviors from others around you. Because of this, you might accidentally start doing things you don't like. When you react to them, you could end up acting just as illogical as they do..

A. Be the opposite of them

B. Consider what you can learn

C. Do other activities and make new friends

D. Catch yourself when you start to do this

E. So nothing you say can convince them to see your side of the story

F. Pointing out that these people are difficult and demanding won't help

G. An impossible person is convinced that they have already made a mistake

Published in Science Advances, the research monitored microbes in the northern Gulf of Aqaba in the Red Sea. By comparing waters close to reefs with open ocean areas during both winter and summer, and collecting samples every six hours, the team uncovered clear daily and seasonal patterns previously missed. They employed advanced methods like genetic sequencing and high-resolution imaging to track bacteria, microalgae, and microscopic predators with great detail.

Key findings emerged. Reef waters consistently had lower counts of bacteria and microalgae compared to open waters, pointing to active removal by reef life. In contrast, populations of heterotrophic protists — tiny predators that consume bacteria — reached their highest levels at night, sometimes increasing by 80%. This nighttime spike emphasizes predation (捕食) as a major force driving changes in microbial communities.

Another major discovery involved Symbiodiniaceae, the microscopic algae (微观藻类) that live in symbiosis with corals. Their genetic markers peaked around midday in reef waters, suggesting a daily cycle tied to light availability and coral biological activity. This highlights the reef's active, not passive, role in organizing microbial life. As co-author Dr. Frada stated, "Reefs generate daily patterns that repeat with the seasons and affect how energy moves through the system."

Importantly, the study found that these daily microbial rhythms were as powerful as seasonal changes, stressing the critical need to consider time of day in ecological studies. By combining genetic, imaging, and environmental data, the research provided a comprehensive, time-based picture of microbial life around reefs. It not only deepens our understanding of reefs' broader ecological influence but also paves the way for new conservation approaches that use an understanding of microbial rhythms to protect these vital ecosystems.

Sleep divorce is a practical response to common sleep problems, such as snoring, different bedtimes, disagreements over room temperature, shift work, and so on. And stress-related sleeplessness are among the main reasons couples consider sleeping apart. Importantly, this choice is not a legal separation nor a sign of marriage trouble.

Several forces are driving this trend. First, sleep troubles are rising worldwide, linked to noise, stress, and late-night screen time in modern life. Second, snoring affects up to half of adults, far more than many realize. Third, health is becoming a higher priority than tradition; couples now see good sleep as essential to well-being, just like diet and exercise. Finally, younger generations are redefining relationship success, valuing flexibility over fixed rules about how couples "should" sleep.

Interestingly, sleeping separately often brings couples closer. With better rest, they report fewer arguments, better moods, and clearer communication. Poor sleep can make people easily annoyed and less empathetic, while solid rest supports emotional strength.

Experts note that sleep divorce is helpful when partners feel bitter due to constant sleep interruption, wake up tired despite enough time in bed, or deal with heavy snoring. But it can backfire if it's used to avoid dealing with relationship conflicts, if one partner feels lonely or rejected, or if the decision is not mutual. Therapists advise couples to talk about it as a health choice for both people, not as a way to escape each other. As health and relationship satisfaction take priority over old expectations, sleeping apart may become a normal option for more couples in the future.

He asked his students to pick a historical figure and write a detailed story from that person's own point of view. The task was confusing at first, but soon the classroom was full of active questions and discussion. One student learned deeply about the life of a young soldier in World War I, writing a sad and moving story of the mud, fear and fragile friendship in the trench lines. Another told the story of a female scholar from the Renaissance, making up a tale of her love for learning being held back by social rules. The thorough research and creative care for how the figure felt that the students showed was amazing.

Mr. Johnson was surprised by the big change in his students. The essays he got were not just correct; they were full of real feelings and a clear understanding of people's thoughts. The students had stopped just repeating facts and truly connected with history, seeing historical figures as people with many different sides instead of just names from a long time ago. In later class talks, their questions changed from "What happened?" to "Why did they feel that way?" and "What would I have done?". This story-writing method didn't just help them remember facts better; it built up their ability to think deeply and their real care for how others felt.

Inspired by this success, Mr. Johnson has now made story-telling a regular part of his lessons. He believes that when students learn to experience history through story-telling, they do more than just remember it — they start to understand its long-lasting effects on their own lives and what it means to be human in general. In his classroom, history is no longer just a subject about the past; it has become a talk with the past.