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Since the 1970s, researchers have suspected that some fish can detect magnetic fields. But no one had shown that sharks use the fields to find their location or navigate (导航), partly because the animals aren't so easy to work with. It's one thing if you have a small fish, or a baby sea turtle, but when you work with sharks, you have to upscale everything.

Bryan Keller, an ecologist at Florida State University, and his colleagues decided to do just that. They lined a bedroom-size cage with wire and placed a small swimming pool in the center of the cage. By running an electrical current through the wiring, they could generate a custom magnetic field in the center of the pool. The team then collected 20 young bonnethead sharks — a species known to migrate hundreds of kilometers — off the Florida coast. They placed the sharks into the pool, one at a time, and let them swim freely under three different magnetic fields, applied in random succession. One field mimicked (模仿) Earth's natural field at the spot where the sharks were collected, while the others mimicked the fields at locations 600 kilometers north and 600 kilometers south of their homes.

They used software to track the sharks' responses, observing which direction in the tank they were trying to swim towards. When the young sharks were exposed to the magnetic field of the place they were captured, or ‘home', they stayed put. But when subjected to the southern magnetic field, the sharks persistently changed their headings to swim north, as if trying to get back home. This suggests that the sharks were using the magnetic field to guide them, similar to how humans use GPS.

Surprisingly, the researchers found that the sharks didn't favor any direction when swimming under the northern field. Keller says this might be because they don't go north of their home location since there is only land there, and so they rarely have to find their way back south again. "This could support the theory that their ability to go back home is a learned behavior," he says. They might not know what to do in the northern field because "they've never been up there." says Keller.

Keller's research adds a significant piece to the still-incomplete puzzle of shark biology. Sharks have been declining at an alarming rate due to mostly overfishing and habitat change. Studying the life cycles and migration patterns of sharks can help us understand what arcas to protect when managing marine spaces.

Of course, artists contributed to this mythology (神话) . Many artists credited their talents to the presence of some supernatural power. Whole movements of art have centered on the supposedly otherworldly nature of art. For example, the Romantic poets believed that art was a term that meant an ultimate expression of beauty and truth. The search for this ideal led them to explore both natural and supernatural themes in their works.

Another persistent view of art regarded its divorce from logic. Reason and logic were the province of scientists and philosophers, whereas creativity and insight were the area of the artists. The two separate aspects of the mind were supposed to remain distinct.

But in 1704, a major breakthrough occurred. Sir Isaac Newton, mathematician and physicist, published his study of light, Opticks. One of Newton's major discoveries was on the nature of color. Using a prism (棱镜) , Newton found that white light is actually composed of all the colors of the rainbow. He even provided a scientific explanation for the presence of rainbows. The artistic community was shocked. A scientist had taken a beautiful and magical experience and reduced it to the simple refraction of beams of light through the prism of a raindrop. A scientist had ventured into their sacred territory.

More than a hundred years later, John Keats, one of the most famous Romantic poets, accused Newton of reducing beauty by "unweaving the rainbow." His colleague, Samuel Taylor Coleridge, famously remarked that the souls of five hundred Newtons would be needed to make one Shakespeare. And yet, from another perspective, Newton did not reduce the beauty of the rainbow; he enhanced it. In his search to uncover the secrets of the rainbow, Newton demonstrated the wonder, creativity, and inspiration of an artist. He also gave the world another opportunity to experience the sublime (绝妙). Newton's discovery paved the way for the development of the science of spectroscopy, a way of analyzing the chemical makeup of light. Now scientists can look at the stars and know their composition. The sense of wonder this ability creates is not much different from the wonder the poet or artist feels when staring at those same stars.

The conference will focus on strategies for preventing and reducing disinformation, as well as applying best practices to address this global challenge. It aims to provide a forum (论坛) for journalists, social media experts, educators, researchers, policy-makers and communications professionals, from within and outside the UN.

Currently, we are in search of social media volunteers to provide online assistance for this conference.

Requirements:

· Outstanding oral and written communication skills

· Professional graphic (绘图的) design experience

· Prior involvement in designing document layouts

· In-depth familiarity with graphic design apps

· Working knowledge of the English language

Note: A degree in graphic design or a related field is considered a plus.

Responsibilities:

· Developing a comprehensive social media release plan

· Assisting in choosing the right types of media and updating conference information on a daily basis

· Working together with our communications team to create social media activities according to agreed requirements

· Developing a series of social media resources once the final concept is agreed upon, with a particular focus on a youth (university level) student audience

Join us now as a social media volunteer and help build a future with less disinformation. You will also have the opportunity to build connections with the UNIC Canberra and its partners and learn about the ways in which social media communication can support the promotion of a conference centering on disinformation.

Find out more at https://app.unv.org/opportunities.

Karie checked the words on her spelling test. If she got 100 percent, she'd win her class's Spelling Challenge and a brand-new dictionary. Besides, Ms. Iris had promised to do handstand (手倒立) if anyone got perfect score.

Three more words to go. N-i-c-e-l-y. Q-u-i-c-k-l-y. H-o-n-e-s-t-y. Wait! She'd spelled honesty, not honestly! She erased the t-y and wrote l-y before handing in her paper. "I'll correct these while you're having a break," Ms. Iris said.

After the break, Karie hurried into the classroom. She was on pins and needles in her seat, tapping her pen and crossing her fingers for luck. Just then, Ms. Iris walked to the front, and like a gymnast, she flipped (翻转) into the air. "Congratulations, Karie! You did it!" she announced while upside down. The whole class erupted! Ms. Iris righted herself and presented Karie with her prize. Karie grinned (露齿而笑) as she read the label on the box: To Karie, for her perfect score in spelling.

"Everything OK?" Mom asked as Karie burst through the front door after school.

"Everything's PERFECT!" Karie shouted, showing Mom her spelling test and prize, "but I nearly misspelled honesly ..." Wait! H-O-N-E-S-L-Y! Karie felt butterflies in her stomach. "Karie, what's the matter?" inquired Mom gently. "I don't feel so good", Karie said. "Probably too much excitement." Mom rubbed her back and got her a cup of tea. After a few drinks, Karie walked with heavy steps down the hall and fell onto her bed. How could she tell the class she hadn't earned the prize after all?

Soon her sister Kevin came in. The smell of her pizza floated in the air. Karie remembered last time when the salesclerk gave them too much change after their purchase of pizza, mom insisted on returning the money. But Kevin thought it was the salesclerk's fault instead of theirs. If Kevin had been right, then wasn't it Ms Iris's fault in the first place? And if she just picked up her pen, and put the missing t back in, no one would ever know.

注意：

1. 续写词数应为150个左右；

2. 请按如下格式在答题纸的相应位置作答。

Ms. Iris was unlocking the classroom door when Karie got to school the next morning.

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For a moment, Ms. Iris stood quietly examining the label on the dictionary.

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1. 介绍该作品；2. 说明它对你的意义或启发。

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。

My Favorite Artwork

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Going green is more than just a fashion. There is a growing community of people who (entire) advocate a zero waste lifestyle. Living a zero waste lifestyle means doing one's best to achieve the aim of not sending anything to a landfill (垃圾填埋场). People adopting this lifestyle reduce what (need) and wanted. They reuse as much "waste" they recycle in daily life possible.

Still, these supporters claim to be frustrated by the many harmful chemical substances (find) in beauty and cleaning products. They also find the (popular) of single-use items and layers of packaging disturbing, some of even make their own toothpaste from coconut oil and baking soda. this lifestyle may be too big a change for the average person, we could make gradual changes to our own lives, such as bringing cloth bags for vegetables.

Experts say true zero waste is impossible (achieve) because waste unavoidably comes about in production and transportation. It is to change mindsets (观念模式) and habits to lessen our negative impact on the environment. In Asia, Singapore, which does have good laws and regulations, (take) good care of the environment for a long period. It was also the first Asian city to have made the cut. This is inspiring piece of news for residents who may want to make this world a cleaner and greener place.

With a deep breath, he started his3. The early morning fog blocked his view, adding an extra bit of4 to the already dangerous climb. As he got to a very difficult part, his foot slipped on a patch of ice. Panic filled him, but he was able to grab a5 rock projection (突出物) just in time.

Halfway up, the wind6 in strength, pushing him hard against the cliff face. Alex held on7 to the tiny handholds, his muscles aching from the effort. He could hear his guide shouting faint instructions from below, but the loud howl of the wind8 most of the words.

Just then, a sharp crack sounded through the quiet. Alex looked down and saw a small piece of rock flying past him. The cliff was9! Fear almost took over, but he made himself stay focused. He needed to find a10 place to hide.

Seeing a shallow11 a few meters above, he used all his remaining12 and started climbing again. Every move was a struggle, but the thought of being safe kept him going. When he finally reached the shelter, he fell down, his body trembling from exhaustion and13.

Hours went by as he waited for the cliff to become stable. When the rescue team finally reached him, Alex was14 but not defeated. The experience taught him the real meaning of courage and the importance of15 when facing difficulties.

An important factor is how the social environments surrounding us change as we age. Schools transform from a place for asking questions to one funded by our ability to answer them. We learn to sell ourselves on the job market by what we know, not what we don't. And we recognize that society rewards the people who propose to have the answers.

As such, one way to renew our inquiring spirit is to change the atmosphere. We can be braver about asking questions in public and encouraging others to pursue their curiosity, too.

When it comes to how we phrase questions, we are advised to open with less sensitive questions, favor follow-up questions, and keep questions open-ended. We can also practice asking questions of and for ourselves by keeping a running list of questions in a journal. Finally, we could set aside time to ask absurd questions like "How would you accomplish a week's work in two hours?" This type of questions forces us to break the boundaries of our comfort zone.

In the world that does not look much as it did years ago, we must ask questions. Great questions can open up our capacity to change because they allow us to draw people in, opening them up to sharing knowledge, ideas, and opinions. And they are also our primary means of learning about the world. In short, asking questions is the best way to deepen our understanding of the things that matter to our life. As any child could probably tell us if we asked.

A. Why do rocks sink but ice floats?

B. The questions depend on our attitudes and the situations.

C. It is a high-payoff behavior especially in times of change.

D. However, adults rarely remember such interesting questions.

E. Why does the child's urge to ask questions grow inactive in so many adults?

F. It not only removes the publicity from question asking, but offers us a place to experiment.

G. In that encouragement, we help create an environment where those around us feel safe to ask questions.

Scott Aaronson, at The University of Texas at Austin, says that while no known watermarking method is absolutely reliable, he really hopes this can help in catching a small part of AI-generated misinformation, academic cheating and more. He also hopes other large language model companies will follow.

Google DeepMind's AI watermarking use a "competition sampling" approach to select certain word tokens (标志), creating a statistical signature that is detectable by associated software. This process randomly pairs up possible word tokens in a competition style, with the winner of each pair being determined by which one scores highest according to a watermarking function. The winning tokens of the competition move through continuous rounds of selection until just one remains—a multi-layered approach that increases the complexity of any potential attempts to crack the watermark, says Furong Huang at the University of Maryland.

The researchers acknowledged that the watermarking works best with longer chatbot responses, such as generating an essay or email, but it has not yet been tested on responses to maths or coding problems. In addition, both Google DeepMind's team and others described the need for additional safeguards against misuse of AI chatbots—with Huang recommending stronger regulation as well. "Authorizing watermarking by law would address both the practicality and user adoption challenges, ensuring a more secure use of large language models," she says.

In the Orkney stranding, 12 of the whales were still alive when they became beached. When this happens, marine organizations assess whether a whale can be safely refloated. Professionals and members of the community frequently come together, cover the animal in wet sheets and pour buckets of water over it, though not the blowhole, until the animal drifts back out to the ocean. Though it's not always a happy ending.

For those that don't survive, a post-mortem (验尸) examination is often carried out. Dr Brownlow of the Scottish Marine Animal Stranding Scheme told the BBC that these can reveal a lot about the whale's life and the reasons why it was beached. In 2024, a very rare species of whale turned up on a beach in New Zealand — a spade-toothed whale. While this is sad, the dead body was dissected in order to help researchers acquire new information about the species. "From a scientific and conservation point of view, this is huge", Gabe Davies, a Department of Conservation official, said.

Some beached whales who don't survive have their skeletons sent to museums, while many others are returned to the water. This ensures the marine environment benefits because whale carcasses (兽尸) give off many nutrients. "When they fall and die and sink to the bottom of the ocean, they form these little nutrient-rich islands that can support a huge diversity of life," says Dr Brownlow.

The more research that can be done, the better. For now, we can only do what we can to keep our oceans clean and safe.

Sure, we parents had work to do, work that helped pay for the lessons our kids were enjoying. But I was also wondering if we were sending an unnoticeable message that learning was for the young. During one tournament, I saw a group of parents playing chess! Just then, a group of kids passed me, "Why are adults learning chess?" One asked, in an apparently joking tone.

I was tired of sitting on the sidelines. I wanted in, and that is why I got a membership card and started throwing myself in. It was three hours of concentration and thinking with my phone off. It felt like a gym where I was trained to solve problems with focus, memory, logic, and occasional headaches. And of course hours of absence of digital devices would never be no good for thinking sharply.

Being a beginner can be hard at any age, but it gets harder when you are older. The phrase "adult beginner" has an fairly gentle pity. It implies the learning of something that you should have perhaps already learned.

Parliament Hill

Parliament Hill on Hampstead Heath—at 98m is one of London's highest natural viewpoints. From here, on a clear day, you can sit on the park bench that featured in movies like Run Fatboy Run and Notes on a Scandal.

Entry fee: free

The Garden Museum Tower

While you might be interested in British garden design, this 14th-Century tower is the main attraction for photographers. Climb the 131 steps of the narrow spiral staircase and you'll emerge onto one of the finest riverside viewpoints in the city—with views across to the Palace of Westminster on the right.

Entry fee: £4

The IFS Cloud Cable Car

If you want to soar over London in a glass pod, the obvious place to go is the London Eye. But a cheaper and crowd-free alternative is to ride the IFS Cloud Cable Car.

The views are impressive at any time, but the Cable Car stays open late, so you can even enjoy magnificent sunsets from the west-facing side or admire the twinkling city lights after dark.

Entry fee: £6 one-way

Seabird, Southwark

London has no shortage of rooftop venues (场所) offering knockout cityscape views, so it can be hard to pick just one or two. But for location, angles and a great experience, it doesn't get much better than Seabird, on the 14th floor of the Hoxton hotel in Southwark with nothing to block views on three sides.

Entry fee: Buy a drink: draught beer costs £6.50 or a small glass of wine is £9; a portion of olives costs £5.

I stood in the school auditorium（礼堂）,VR headset on my head. The virtual forest buzzed with life—3D fireflies danced above a stream, their glow waving on the water. My team had spent months programming this for the Eco Youth Summit, to show how deforestation harms wildlife. The air smelled of fresh paint, and whispers from the audience reached me through the headset.

But as judges approached, the headset suddenly went dark. Panic surged through me. I tore off the device to see Maya frozen at the control panel（控制板）. "Server crashed," she mouthed, hands shaking over the black screen. "Our project—it's all gone." Murmurs rose in the crowd, and my neck burned under the stage lights.

I scanned the judges, their expectant smiles fading. A man in green tapped his writing board; the woman beside him frowned at her watch. Then my gaze met a girl in the front row, holding a stuffed owl（猫头鹰）. Her pigtails bobbed as she leaned forward, but when I shook my head, her eyes filled with disappointment—mirroring my sister's look when a trip is canceled.

"Wait," I claimed, grabbing Maya's arm. She shrank back, but I pressed on: "What if we tell the story without VR?" For a moment, she stared, then nodded sharply. Stepping to the stage edge, I said, "This forest isn't just code. It's a real home where owls nest..." My voice cracked, but words poured out—about drying rivers, about birds losing habitats.

When I finished, the auditorium fell silent. Suddenly the girl rose to her feet, with her sneakers making a sharp noise: "Instead of a virtual forest, can we plant a real tree?" The audience laughed softly, and judges exchanged nods. Maya's hand found mine, steady and warm. Though the VR failed, a definite idea had taken root.

注意：

（1）续写词数应为150个左右；

（2）请按如下格式在答题纸的相应位置作答。

The crowd's laughter faded as the head judge stood up, microphone in hand.

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Two weeks later, volunteers arrived at the school with gardening tools and young trees.

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1．活动亮点；

2．观展感受。

注意：

1．词数80左右；

2．可以适当增加细节，以使行文连贯。

Dear Daniel,

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Yours,

Li Hua

Naipizi yogurt, or milk-skin yogurt, has emerged as Beijing's (late) internet-famous special cuisine. Combining traditional Mongolian dairy craftsmanship with modern dessert appeal, the smooth yogurt with its rich taste and unique flavor(strike) a sweet spot among China's youth recently.

Naipizi is a regional cuisine from the Inner Mongolia Autonomous Region. It (make) by boiling fresh milk and allowing it to cool. During the production process, exploded milk fat drops absorb milk proteins, reduces surface tension and enables the formation of a stable skin layer. As a result, traditional milk skin contains an exceptionally high fat, reaching up to(approximate)60 percent. To some extent, naipizi yogurt can be considered a modern (revive) of traditional Beijing yogurt. a new type of yogurt, naipizi does not undergo any stirring during fermentation (发酵), (result) in a thick, spoon-friendly mixture reminding us of custard (蛋奶糕).

China's Dietary Guidelines recommend 300-500g of dairy intake daily for adults, current national consumption averages less than one-tenth of this suggested target. Therefore naipizi yogurt has emerged as effective solution to people's dairy shortage. While not low calorie, naipizi presents a nutritional alternative to tasty desserts like sugar-laden cheesecakes.

Instead of fear, Armus felt5 for Plasencia and approached him, asking if he had a job. Plasencia hopelessly responded that he didn't want to6 anyone and that he just wanted to go to prison rather than continue his struggle, as there was nothing for him in town. Choosing empathy (同情)over7, Armus led Plasencia outside the bank and suggested they talk. Plasencia agreed, and the two walked out of the bank.

Once outside, Armus8 the man in a bear hug, and Plasencia started to weep in his embrace (拥抱). Police soon arrived with rifles (步枪)drawn and9 both men to the ground. It took 45 minutes for the police to realize Armus was not involved in the robbery and10 him. Plasencia, who never had a gun, was11attempted robbery.

Armus, described by the police as a(an)"12 and brave customer," was more modest, saying he13 felt Plasencia's pain and wanted to help. Armus, who volunteers to14 homeless people and keeps pillows and blankets in his car for those living on the streets, believes in the power of compassion. "Love15 all things, and the world needs more compassion," he says. "Try to be kind to somebody; it makes a difference."

High achievers' mindset. One thing that separates high achievers from underachievers is their mindset. High achievers think differently from the rest of us. First of all, they have high standards. Second, they possess self-confidence, They believe in their abilities to handle whatever challenges they may face.

Goal-oriented (导向) approach. To become an overachiever, set clear, specific, and relevant goals and use visualization (形象化) to paint a vivid picture of what you want to accomplish as your compass to guide and motivate your action. The next step is to break down your vision into proper goals. Priorities (优先事项) . Setting priorities is your guide to the right path. To get started, remove your to-do list. It's so easy to get annoyed when dealing with a million things at once. We all have a very limited amount of time, and not everything can be your priority.

It can really take your performance to another level. Though it is unwelcome to some, high achievement is unattainable without self-discipline. One of the best ways to become a high achiever is to set up an environment that supports your goals and leads you in the right direction. While routines might seem boring to some, they effectively streamline your actions, saving both time and effort. With a consistent daily schedule, there's no need to consider your next move.

A. Self-discipline.

B. Work-life balance.

C. Stay flexible and bounce back when things get off track.

D. If you copy key habits of high achievers, you will get similar results.

E. This way of thinking pushes them forward, fueling their pursuit of success.

F. Take a deep breath and start by identifying the most important tasks and goals.

G. And these goals should be specific, relevant, and achievable within your control.

Focusing on a frustrating conversation can blow out of proportion relatively minor annoyances, which is unhealthy, says Jesse Cougle, a psychology professor studying anger at Florida State University.

The problem is that when you're furious (愤怒的), it feels better to shout angrily than it does to take some centering deep breaths. Bushman has seen that in his research. Even though activities like hitting a punching bag don't actually lessen anger, "75% of people report feeling better" after they do it, he says. The same is often true for venting to a friend. It feels great to have someone support your perspective.

Can something that feels so good really be so wrong? Bushman says it's not always a bad thing to get something off your chest. Talking through a negative feeling with the goal of understanding why something bothered you and how to better respond in the future, such as with a therapist, can be beneficial, he says. But venting becomes less helpful, Cougle says, when it's mean-spirited—when you repeat the same thing you've done many times, keeping yourself stuck in that past anger without trying to move past it.

When you feel yourself getting stuck in the trap of venting, look for healthier coping strategies. If yoga and meditation aren't your thing, try a quick shift in perspective. Bushman's research supports the "fly-on-the-wall" technique, which challenges angry people to imagine themselves as a third party observing the situation that made them angry. And finally, don't underestimate the impact of anger — that is, getting angry when you're hungry. Science suggests it's a real phenomenon. So next time you feel yourself gearing up for a venting session, think of grabbing a snack and taking a few deep breaths instead.

Oceana also estimates that by 2030, an annual 602 million kilograms of Coca-Cola's plastic packaging will be polluting the world's oceans and waterways. The report says that this is enough plastic to fill the stomachs of 18 million blue whales. Oceana made its estimates using Coca-Cola's own reported data on its use of plastic packaging between 2018 and 2023, and a forecast of the company's future sales growth based on past trends.

A 2024 study found that Coca-Cola is already the world's worst plastic-polluting brand. Oceana says the problem is Coca-Cola's use of single-use plastic instead of reusable packaging. Reusable bottles can be used up to 25 times if made of thicker plastic, and up to 50 times if made of glass. Coca-Cola previously had a goal of using 25% reusable packaging by 2030, but announced that it had given up that goal at the end of 2024.

Instead, the company says it will increase the use of recycled plastic in its packaging and increase collection of single-use plastic bottles for further recycling. However, Oceana says that relying on the use of recycled materials and collection of plastic for recycling won't reduce the great influence of Coca-Cola' s plastic footprint.

The organization's Senior Vice President Matt Littlejohn said: "Single-use plastic is bad for the oceans, human health, and business. Recycling can't solve the company's out-of-control plastic problem. Reuse can." He added, "Single-use plastic bottles made with recycled content can — just like bottles made of virgin plastic — still become marine pollution and harm ocean life." As well as harming sea life, plastic use is also harmful for human health. Several studies have connected plastic pollution and microplastics to serious health conditions, such as cancer, heart disease and dementia. Oceana suggests Coca-Cola should take real action that can address its plastic problem now, namely replacing single-use packaging with reusable packaging.

The victory capped a remarkable journey. Zhao entered the tournament through qualifiers (资格赛), defeating legends like Ronnie O' Sullivan in the semis. His victory completed a historic double for China — just months after Bai Yulu won the women's world title. As he held the cup high in Sheffield's Crucible Theatre, the crowd erupted in cheers.

Zhao's win resonated (影响) deeply in China, where snooker has grown into a national craze. It began in 2005 when Ding Junhui, now a national hero, became the first Chinese player to win a ranking event by defeating Stephen Hendry. That match drew 110 million viewers, sparking a boom. Despite setbacks, like Ding's 2016 World Championship final loss to Mark Selby, patience paid off. This year, 10 Chinese players reached the televised stages of the World Championship, with Zhao's final broadcast attracting an estimated 150 million viewers nationwide.

World Snooker chairman Jason Ferguson highly praised Zhao as a "national hero" who would redefine the sport. "He's rewritten history," Ferguson said. "The sky's the limit — he could become the richest player ever." For Chinese fans, Zhao's victory symbolizes a new era. After his near-collapse in the final (losing four frames while needing just one), they celebrated into the early morning, their pride echoing Ding's legacy. Zhao himself vowed to "give children in China power," believing his achievement would fuel countless aspirations.

As the nation's youngest world champion, Zhao's journey — from qualifiers to immortality —proves that with courage and talent, even the boldest dreams can become reality.