相关试卷

The study used data from a larger project called the VITAL trial. In this study, over 1,000 adults (women aged 55+ and men aged 50+) were followed for five years. Some people took 2,000 units of vitamin D and 1 gram of omega-3 every day. Others took a placebo. The scientists checked their telomere length at the beginning, after two years, and after four years.

The results showed that vitamin D helped slow the shortening of telomeres. This may mean that vitamin D slows biological aging by about three years. However, omega-3 did not show any effect on telomere length.

Experts say these results are interesting, but they want more research. The study was small, and it only looked at one type of cell. Scientists still do not know how this connects to real-life health outcomes.

Vitamin D has other known health benefits. It can help keep bones strong, lower blood pressure, and reduce the risk of diabetes and heart disease. But too much vitamin D can cause health problems, like high calcium levels or kidney issues.

To get vitamin D, people can spend time in the sun, take supplements, or eat certain foods. These include fatty fish like salmon and tuna, egg yolks, and vitamin D-fortified milk. Some mushrooms and cheese also contain small amounts.

Doctors say it's best to check your vitamin D level before taking supplements. In healthy people with normal levels, extra vitamin D might not be helpful. Good sleep, exercise, a healthy diet, and not smoking are still the best ways to stay young and healthy.

My first day started in Lima, the capital of Peru. I met with the G Adventures representative (代表) here about the tour. G Adventures is an organization that helps you to connect with other like-minded people in small group-based travel adventures. They played a big part in helping to make Peru an unforgettable experience for me! In Lima, my representative discussed the plan of my tour, and I also had the chance to explore Lima in my own time, with many activities, including a city tour, show, biking tour, and more.

Day two had me taking a flight from Lima to Cusco. Many people visit Cusco for shopping but for me, the main reason for spending a day or two in Cusco was to acclimatize (适应) to the altitude (海拔). As I'd decided to reach the wonder of Machu Picchu, acclimatizing became important to avoid altitude sickness. I was happy to spend a day exploring Cusco. Cusco was once the capital of the Inca Empire. Today, it's famous for its artists, paintings, clothing and traditional instruments. There's something for everyone in this city.

The day finally came! Day three had me enjoying a lovely guided visit to Machu Picchu at sunrise. I had free time to explore the city on my own as well as with my guide. It was a lot to take in! I had to stop for a moment and felt the energy of such an ancient city. The history here was unbelievable and I will never forget my time here for as long as I live!

Jane's path to science was unconventional. Unable to afford university, she worked as a secretary and later saved money by serving as a waitress to fund her dream of traveling to Africa. In 1957, at age 23, she met famous anthropologist Louis Leakey in Kenya. Leakey, seeking someone with an "open mind and patience" to study wild chimpanzees, chose Jane despite her lack of formal training. In 1965, she earned a PhD in ethology (生态学) from Cambridge University, becoming one of the few students without an undergraduate degree to do so.

In 1960, Jane arrived at Gombe Stream National Park in Tanzania. Jane observed chimps using sticks to "fish" for termites (白蚁) and modifying stems to create tools — proving humans weren't the only species capable of such behavior. She documented chimps hugging, fighting, and even waging "wars" over territory, revealing their capacity for both love and violence. By naming chimps like Flo, Fifi, and Frodo, Jane challenged the practice of numbering animals, emphasizing their unique identities.

Jane's discoveries redefined humanity's relationship with nature. In 1977, she founded the Jane Goodall Institute, which protects chimps and habitats .Her Roots & Shoots program, launched in 1991, inspires millions of students worldwide to solve environmental and humanitarian issues. Because of her contributions, she won UNESCO Peace Prize, and the 2025 U.S. Presidential Medal of Freedom.

Jane Goodall passed away in her sleep on October 1, 2025. Her life teaches us that curiosity, kindness, and persistence can transform the world. Her story isn't just about chimps — it's about recognizing our shared humanity with all living beings. As she often reminds us, "The least we can do is try."

Why Join Us?

Do you love animals? The City Animal Shelter is looking for volunteers to help care for our furry friends! Whether you're good with dogs, cats, or small pets like rabbits, your time will make a big difference. Volunteers help keep our shelter clean, feed the animals, and even take dogs for walks — all while making lonely pets feel loved.

What You Need to Know

● Time Required: At least 2 hours per week (weekdays 3:00 p.m. - 7:00 p.m.; weekends 9:00 a.m. - 5:00 p.m.).

● Age Limit: 15 years old and above (students under 18 need a parent's signature).

● Training: A free 1-hour training session will be given before you start. You'll learn how to handle animals safely and use our tools.

How to Sign Up

1. Fill out the volunteer form on our website: www.cityanimalshelter.com/volunteer.

2. Email a photo of yourself (for your volunteer ID) to volunteer@cityanimalshelter.com.

3. Wait for our call! We'll contact you within 3 days to confirm your training time.

Questions?

Call Ms. Lee at (555) 123-4567 every Monday to Friday, 10:00 AM-12:00 PM.

Susan, Max, and Alex were inseparable friends who shared a deep love for the great outdoors and always overcame difficulties together they met. For weeks, they had been planning their latest camping adventure on weekends. This trip was special — they had chosen a spot by a river, far from the busy city. As they finally hit the road on a sunny Saturday morning, they were very excited.

After a few hours of driving through winding roads, they arrived at their destination. The campsite was everything they had hoped for — a peaceful spot by a gently flowing river, surrounded by towering trees. Without wasting any time, they set up their tent, gathered firewood, and started a fire to cook their dinner. The smell of grilled (烤) sausages filled the air as they sat around the fire, sharing stories and laughing at old memories. For a moment, everything was perfect.

As the night grew darker, the forest, once alive with the singing of birds, seemed terrifyingly quiet. Suddenly, they heard a strange noise coming from the woods. It sounded like something was moving through the bushes. Susan, who had always been more careful and resourceful, suggested they go inside the tent. But Max and Alex, ever the adventurers, wanted to investigate and challenge themselves. Armed with their flashlights, they headed into the woods. Susan, who was a bit worried, didn't want to be left alone and followed them, with a spoon and a pot in her hands in case of danger.

The deeper they walked into the forest, the louder and more intense the noise became. The beam (光线) of their flashlights cut through the darkness, revealing nothing but the thick bushes. Leaves rustled (沙沙作响) and the air grew heavy with tension. Just as they were about to turn back, a sudden movement caught their attention. From the shadows appeared a wild pig. The pig took a step closer, smelling the air as if searching for food. Max and Alex froze in fear, not knowing how to deal with the situation.

注意：1. 续写词数应为150个左右；

2. 请按如下格式在答题卡的相应位置作答。

At that moment, Susan remembered the spoon and the pot she had bought.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Seeing the pig walk away, they returned to their tent immediately.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

1. 活动意义；

2. 具体要求；

3. 呼吁与期待。

注意：

1. 词数80词左右；

2. 倡议中不得出现真实校名或个人信息；

3. 可适当增加细节，使行文连贯；

4. 开头与结尾已给出，不计入总词数。

Dear fellow students,

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

The Students' Union

The Revelations 2025 became a stagean embroidery inheritor (刺绣继承人) from Hunan Province impressed Paris with her contemporary interpretations of traditional Chinese craftsmanship. Liu Ya from Changsha, Hunan Province, (present) 20 innovative Xiang embroidery pieces during her solo exhibition at the Grand Palais on May 21.

Liu Ya is the daughter of Liu Jianxin,national inheritor of Xiang embroidery and master of Chinese arts and crafts. Liu said, "Watching my mother transform fabric stitch (一针) by stitch, I developed a feeling of(admire) for this art, though I could not understand the hardship and perseverance."

She particularly recalled her mother's devotionthe 20-meter Thousand Cranes Scroll — a project   (involve) twelve artisans (工匠) over two decades. In the course, Liu Jianxin often (accident) drank ink or wore mismatched shoes due to her intense focus. "Her unwavering artisan spirit forms my foundation," Liu Ya said.

(raise) in a Xiang embroidery family, Liu Ya was trained in traditional Chinese painting from the age. Her studio highlights her growth as an artist. She explores themes beyond (convention) subjects, drawing inspiration from all living things. Liu Ya's creative pieces include the Joy Series, combining line art with embroidery, and Spring Pear Blossoms, inspired by a pear garden.

The exhibition showcases Liu's years of inheriting and innovating Xiang embroidery. She emphasized that it is more than just a traditional craft — it's also a cultural expression and an artistic bridge across (nation).

●Balance, balance, balance! Balance your academic and social life. Balance your work and personal time. Balance your research hours and your own projects. I know that many of you are overachievers, but it is important to build up what's on your plate, not to put as much as you can all at once. !

●Seriously, don't skip class. What I can tell you is that once you get on the class-skipping train, you might not be able to get off. And then you fall behind on lectures. . I had to force myself to walk to the classroom every day. Go to class, even if it's to just turn your brain off.

●Don't put your hobbies on the sideline. . They prevent your mind from being buried by the studying you have to do. Sometime last term, my friend took me to the Sage Art Center. She found me a block of wood and I just painted. Instead of worrying about an exam the following week, I could focus on the present.

●. Knowing whether you can sit through multiple one-hour and fifteen-minute classes in a row is extremely crucial, especially if you're like me and do not have the capacity for three classes in a row. The same goes for whether to sign up for 8 am or 6 pm classes. Know your limits and make your schedule around those limits.

A. Hobbies keep you alive

B. Step out of your comfort zone

C. Create a schedule that works for you

D. Attend optional courses as scheduled

E. Regrettably, I was entirely and absolutely wrong

F. There will be nobody to keep you accountable for lectures

G. Balance can prevent burnout, which is good for you in the long run

Researchers from Columbia University and Cornell University analyzed two decades of field data, containing 40 breeding seasons and thousands of interactions among hundreds of birds. Their findings revealed that superb starlings often engage in helping each other, even when they are not related by blood.

Superb starlings live in mixed flocks, comprising both family groups and newcomers. New parents rely on up to 16 helpers, which bring extra food to the chicks and help ward off predators (捕食者). The study also found that birds that helped others were later returned the favor, sometimes repeatedly, indicating a form of reciprocity in community.

This idea of forming friendships with unrelated individuals has sparked debate among scientists. However, a growing body of research supports the existence of such relationships in various species, including monkeys, elephants, crows, and whales. The study of superb starlings adds to this evidence, showing that these birds consistently invest in preferred social partners over their lifetimes.

Birds in larger groups tend to live longer and reproduce more offspring over their lifetime. In the harsh and unpredictable environment of the African savanna, closely connecting with each other is essential for their survival. Besides, the addition of newcomers to the flock enhances the group's endurance and adaptability.

This study underscores the importance of strong social bonds, which can offer valuable insights for humans. In a world where many people struggle with loneliness, the superb starling's behavior suggests that forming and maintaining supportive relationships can have significant benefits. By helping others, these birds create a network of support that enhances their own well-being and that of their community.

Traffic flow becomes unstable as the number of vehicles increases. At 15 vehicles per mile per lane, a single driver tapping the brakes can cause a lasting wave of traffic jams that spreads backward for miles. "This is a phase transition," explains Katsuhiro Nishinari, a traffic researcher — similar to water freezing into ice, where a small change (like a temperature drop) causes a dramatic shift in state (from liquid to solid).

Nishinari's earlier research revealed that ants searching for food keep smooth flow even when there are very large numbers of them. Their secret? Recent studies tracking desert ants show they travel in well-organized groups of 3 — 20 individuals, moving at nearly constant speeds with consistent spacing between one another — about three body lengths apart. Crucially, they never speed up to overtake slower-moving peers, which prevents the "sudden slowdowns" that jam human traffic.

Human drivers, by contrast, prioritize personal speed over collective efficiency, which is why jams occur. "We maximize individual interests, leading to bad jams," notes Nicola Pugno, an engineer studying the behavior of groups. Self-driving cars, however, could be programmed to cooperate: sharing real-time data with nearby vehicles to maintain steady speeds and distances, or avoiding overtaking altogether. This vehicle network would be analogous to ants on a trail, which use chemical smells to organize their movements to coordinate behavior while interacting with one another.

However, ants have advantages cars can't match. They can widen their trails when needed, while drivers are confined to fixed highway lanes. Moreover, ants never crash; they simply crawl over one another when paths cross.

Still, today's drivers can learn from ants: Nishinari advises avoiding following too closely. Leaving extra space between cars allows drivers to absorb sudden braking in heavy traffic, preventing the spread of traffic jams. "Just maintaining a safe distance," he says, "can keep traffic flowing smoothly even when there are large numbers of cars."

Then, something changed. Last year, my youngest child began piano lessons. I helped him recognize notes and celebrated his simple songs. Watching him reminded me how much I loved piano. Sitting at his first recital (演奏会), I knew it was time to try again — seriously this time. Before I lost courage, I emailed his teacher, Faria.

Faria welcomed adult learners, and I walked to her house in the snow for my first lesson. We started with basic scales and a simple Tchaikovsky piece. To my surprise, my fingers still remembered some of the movements. I practiced every night and slowly made progress. After more than two decades, I was playing again. But as pieces grew harder, I struggled. One day, I couldn't even play a basic scale. I felt embarrassed and thought about quitting once more.

That weekend, I watched my son learn to dive. He failed again and again until he did it. I realized learning anything new is mostly about failing. It's not talent; it's practice.

As adults, we often avoid what we're not good at. But returning to piano taught me something different. Now, I give myself a sticker each time I practice — not for perfection, but for showing up. My kids see me fail, try again, and slowly improve. There's no exam ahead, no performance, but just practice — and that's enough.

1.写信目的；

2.活动安排；

3.邀请理由。

注意：词数80词左右；可以适当增加细节，以使行文连贯。

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________