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1. 写作词数为100左右；2. 请按如下格式在答题卡的相应位置作答。

Dear Peter,

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Yours,

Li Hua

Originally constructed around 256 BCE by the State of Qin as an irrigation (灌溉) and flood control system, Dujiangyan is a remarkable example of ancient (engineer) skill and is still in use today.

During the Warring States period, people living along the banks of the Min River were troubled by annual flooding. Irrigation engineer Li Bing (lead) a team to construct an embankment (堤坝) to redirect part of the river's flow upon thorough investigation. Then they cut a channel through Mount Yulei to let out the extra water. During the construction, cutting the channel proved to be a much more challenging task than (anticipate), as the tools available could not break through the hard rock of the mountain. Therefore, they used a (combine) of fire and water to heat and cool the rocks until they broke could be removed. Once completed, the system prevented floods and made Sichuan one of China's most productive (agriculture) regions by using the redirected water irrigation.

Now if you visit Dujiangyan, you will see an unusual construction looks like a fish's mouth. This famous attraction, Yuzui, together with two other important parts, namely, Feishayan and Baopingkou, (design) scientifically to control the water flow throughout the year. Recognized as UNESCO heritage site, Dujiangyan has irrigated farms while preventing floods for over 2,000 years.

This was proven6, though, years later. I was working at a minimum-wage job,7to support my family. One day, I found myself with just 10 dollars in my wallet but the petrol tank on my old car was empty. I8 at a convenience store and bought 5 dollars'9 of gas. As I waited in line to pay, I saw a woman10 searching her purse for money to buy milk for her children. For a second,11 held me back: My math told me I had nothing left. The next moment, however, my emotions urged me to offer her my last 5 dollars! I felt12. It didn't make13 sense to me, but   I was sure this small sum of money made a big difference.

As I reflected later, I began to realize how math, in its own way, had guided my14. Math is much like love: the more we give, whether it's our time or money, the more we receive. Finally, I was able to appreciate the15of math.

Researchers led by academics at Imperial College London studied data from the UK Biobank study on more than 26,000 people who had completed intelligence, reasoning, reaction time and memory tests. They then examined how participants' sleep duration, quality, and chronotype (时间型) affected brain performance. They found that those who stay up late and those classed as "intermediate" had "superior cognitive function", while morning larks had the lowest scores. Going to bed late is strongly associated with creative types. Artists, authors and musicians known to be night owls include James Joyce and Lady Gaga.

But while politicians like Barack Obama famously seemed to thrive on little sleep, the study found that sleep duration is important for brain function, with those getting between seven and nine hours of shut-eye each night performing best in cognitive tests. Prof Daqing Ma, the co-leader of the study, added, "We found that sleep duration has a direct effect on brain function, and we believe that actively managing sleep patterns is really important for boosting and safeguarding the way our brains work. We'd ideally like to see policy interventions (干预) to help sleep patterns improve in the general population."

Some experts, however, urged caution in interpreting the findings. Jessica Chelekis, a sleep expert at Brunel University London, said there were "important limitations" to the study as the research did not account for education attainment, or include the time of day the cognitive tests were conducted in the results. The main value of the study was challenging stereotypes around sleep, she added.

Researchers have long struggled to explain how fish turn up in lakes far from other bodies of water, a mystery even Charles Darwin noted in 1859, when he suggested that aquatic (水生的) hatchlings might stick to the feet of birds, though his bright idea remained a theory.

In 2019, Yao Akifumi, a biology student then, wondered if Darwin might have been right and further wondered if fish-hunting birds might transport egg-bearing aquatic plants stuck to their feet. To test this, he set up two ponds one metre apart, one containing 36plants and the other without, both equipped with camera traps. After six months, some plants had switched ponds, and one camera captured a bird flying away with a plant on its foot. Next, Yao aimed to see if fish eggs could weather the journey being carried out of water. He attached tiny medaka eggs to aquatic plants and removed them for zero to 24hours—at favorable hatching conditions — before returning them.

In a paper in Science of Nature, Mr. Yao reports that the medaka eggs can successfully hatch after up to 18 hours out of the water. Eggs without a plant leaf to attach to rarely survived a few hours. The big drop in survival was at 16.3 hours, when half the eggs became lifeless.

Whether any egg could survive that long, given that a bird's average flight-speed is around 39kph, is doubtful, says Mr Yao, since wind exposure during such a long journey would dry them out.

Shorter journeys, however, are certainly possible. And since many other medaka-like species are found throughout Asia, the chances are high that hitchhiking (搭便车) explains how they have ended up in lakes with seemingly no connection to other water bodies. Yet again, it would seem, Darwin's theories turn out to be correct.

Deere decided to look into the problem. From his previous work on plows, he knew that dirt was less likely to stick to highly polished metal. That thought was in the back of his mind when he visited a sawmill (锯木厂) in 1837 and noticed a broken saw made of steel. Deere brought it home and began making a better plow. The plow he wanted would have to cut deep into the soil at a sharp angle so that dirt would fall off, yet it could not put too much burden on the horses pulling it. After several experiments, Deere constructed a new plow that featured wood handles. It proved a success. Unlike the old iron plows, Deere's not only had a blade from which dirt fell away cleanly, but it also turned the soil more efficiently and quickly.

Demand for Deere's plows increased sharply, but production was limited by the shortage of polished steel. Initially, Deere could only produce a few plows each year. However, Deere's persistence paid off as he sourced cheaper steel from Pittsburgh. Amazingly, in 1857, his company manufactured and sold 10, 000 plows!

Deere, a perfectionist, continually improved his plows, introducing multiple new versions in a single year. While this slowed down his production ability, it ensured Deere a solid reputation among his customers. Deere plows became world famous in the 1870s when they outshone the competition in a demonstration in France. That same decade, his company built its first riding plow and designed the leaping deer as its trademark.

Kindergarten Grandma

Helen entered my life after a parent approached me and asked if I would consider having a grandparent volunteer in my kindergarten class. My answer was an immediate yes.

As a teacher, I tried to make the classroom feel like a family. Many children did not have grandparents or had ones who lived far away, so I thought this was a wonderful opportunity for children to be taken care of by an older adult. I introduced her to the class by the name Grandma Helen.

I was not quite certain what to expect when Helen first came to us. I had imagined a little old lady, possibly weak, who would read and spend time with the children. Little did I know that Helen would walk into the classroom with a spring in her step and light in her eyes. She said she was available up to three days a week for about four hours. She was anxious to help in any way she could.

Helen's enthusiasm and energy level were so high that I would joke that if we ran a race, she would win. She was agile (敏捷的), getting up and down from those little kindergarten chairs even though "grown-up" chairs were available.

The children were attracted by her right away. It turned out that she did not want to read to groups of children, but really enjoyed sitting at learning stations while children were working. There they would talk and she would make note of their questions and concerns. Not all children were able to focus and finish their work on time, so she helped the ones who needed a little extra guidance. She had endless patience helping a child called Bob learn to cut with scissors.

Wintertime always brought the battle of the coats and boots. The children had about twenty to thirty minutes of outside activities but they always had trouble dealing with the zippers (拉链) on their jackets.

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。

Then Grandma Helen helped zip their jackets when they went out.

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When Grandma Helen was handling my zippers, the children looked curiously.

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1．介绍一种传统美食；

2．它的特点及你喜欢的原因；

3．邀请他前来中国亲自体验。

注意：1．写作词数应为80个左右；

2．请按如下格式在答题纸的相应位置作答。

Dear Tom,

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Best wishes,

Li Hua

Fourteen-year-old Nsajigwa Michael is learning Chinese calligraphy and painting at the Chinese Cultural Center. The center (consist) of 25 Chinese and Tanzanian children and 4 educators lies in the port city of Dar es Salaam.

In addition to learning Chinese painting, Nsajigwa is also studying the Chinese language. "The (expose) to the Chinese calligraphy and painting has given me a much (deep) understanding of Chinese culture," he said.

The Chinese Cultural Center in Tanzania, established in 2013, hosts children twice week. The center aims to inspire young learners' critical thinking, emotional intelligence, and artistic expression. Feng Yingqiao, an (exceptional) ambitious Chinese teacher in charge of the center explained her approach in an interview. "My classes help the Tanzanian children better understand Chinese traditional culture," she said. "These art forms are not just skillswindows into China's rich cultural heritage."

More often than not, (motivate) students to develop a deep connection with the Chinese culture, Chinese history (integrate) into the calligraphy and painting lessons in Feng's class. "My classes have sparked (激发) a growing interest China's history and arts among the children," she said. "Learning calligraphy and painting (be) also about preserving their cultural identity."

I came home in a wheelchair. It was like waking up in a house after a storm, everything familiar yet4 in some way. I was left not being able to5, with constant dizziness, problems with my hands. Thankfully, my family was my6, ready to rebuild with me.

With their help, I relearned to walk and use my hands. We7 a house. I wanted to be sure my family had a home if I wasn't here. As I learned to deal with my8, we slowly repaired the house. This wasn't just a project — it was our path to healing (治愈), our own9 project.

I set up a page called Making a Home to10 our journey. People, once strangers, started11 us. More than 2,000 of them! Some donated money to12 us to repair the run-down house we bought. I faced many challenges but I learned to have faith in myself and total13 and learned never to quit.

So whatever things are put in your way, they are not14, just places where you have to change your path. Your path might change, but don't15.

I don't know how to answer when readers ask how many days they should spend traveling in a particular country or city. The truth is that I have no idea what you'll enjoy or who you'll meet. My advice is to pick a starting point, 1 or 2 must-do activities, and an ending point(or not). Be open to changing your plans if you learn about something along the way!

Learn a few foreign words. There's no need to be fluent in order to visit a foreign country. However, mastering a few phrases in the local language can improve your travel experience. But remember that this is your problem, not theirs. Raising your voice doesn't magically help Mexicans understand English. Try hand signals, images on your phone, or Google Translate!

Write down the address of your hotel.Sometimes, after a long flight playing games on your smartphone, your battery could end up dead. And if you didn't write down where you're staying, how will you tell the taxi driver?

Read a book about the country. Before you travel to a new country, I recommend reading a good book about it to learn more about its history and culture before you arrive. Your travel experience will be different if you already know about your destination.

A. Pick a starting point.

B. Be flexible and don't over plan.

C. Then just let the universe determine the rest.

D. You are sure to benefit from these simple images.

E. This could be as simple as a popular novel by a local author.

F. Not being able to communicate while traveling can be frustrating.

G. I also recommend noting down your room number after you check in.

"The traditional methods may work well for some purposes, but they are difficult to operate and quite expensive," explains Kaori Kohzuma, the developer of sensors, "In order to continuously monitor small changes, we needed a new solution."

To address these issues, a team of researchers developed a novel sensor that attaches directly to the underside of plant leaves. This small device uses a spectroscopic (光谱的) sensor and light source to measure leaf color without blocking sunlight, and it can track changes in the same spot over time. Powered by a battery, with Wi-Fi data transfer and waterproofing, the sensor can work outdoors for over a month, allowing for extended data collection.

This sensor performed well when compared with a commercial spectrometer on about 90 leaves from 30 different plant species. It accurately distinguished colors across seven out of its eight detectable wavelengths.

In an outdoor trial to test performance under real life conditions, they attached the sensor to tree leaves to track changes in leaf color during autumn, leaf fall, and aging over two weeks. They were able to observe a decrease in chlorophyll (叶绿素) — an indicator of plant stress — and how the plant's response varied with sunlight intensity.

"This sensor can accurately monitor plant health and stress through leaf color and light reflection data. Its low cost makes it possible to place multiple sensors across various locations," summarizes Kohzuma.

But Castillo hasn't added to his collection for a while. Tickets are digital now, but the 40-year-old Fort Worth resident still misses his treasured stubs (票根). "You have your digital ticket, but as soon as you enter the event and that day goes, you have nothing to look back on that, you know?" he says.

But there's good news for fans like Castillo. Some sports teams and concert promoters are starting to sell physical tickets again. Not the ones from the past, with the bar codes and the tear-off stubs. These are much higher quality, usually with a nice photo or art design. Typically, they are issued to mark a big game or moment.

They are becoming a bit of a hit, according to Weldon, Williams & Lick (WW&L), a printing company that is working to produce the tickets. "There's still always that connection to an actual ticket," says Evan Gitomer, the company's chief revenue officer. "It reminds you, and it takes you back, just like the sense of smell."

WW&L has been producing tickets for over a century. Today, they've found a niche producing paper souvenir tickets for big events. These tickets usually sell for $15 to $20. They're not included in the game's actual admission price, so some fans resent having to pay more money later for a ticket to a game or event they already attended. But they are selling and the company's income has more than doubled in the last couple of years.

"There's probably some type of limit to where this can actually get to," Gitomer says. But he adds that every time he thinks that, he bumps into a fan who appreciates the chance to own a physical reminder of a game or a concert from a favorite artist.

Despite reports of stuck vehicles and spotty Wi-Fi service, several attendees who spoke to NPR said the wet weather hadn't lowered their spirits. "I would say honestly, walking around the city, spirits are pretty high," attendee Anya Kamenetz said on Sunday.

The challenging conditions are testing a community of so-called "burners" which regards self-support and common effort as its main principles. Event volunteer Josh Lease said that in true Burning Man spirit, people are sharing warm clothes and phone chargers.

"It's like any other Burning Man, just muddy," Josh Lease told NPR on Saturday evening. "The warnings do sound very terrible, and of course, the organization has to tell people to take care," said Claudia Peschiutta, an editor who attended the event, "but I haven't seen one person who seems worried about it at all."

Sense of loss and upset, however, started to affect some attendees by Sunday. In rainy Burning Mans past, longtime "burner" Joe Bamberg said he's seen carpets and clothes eventually dry out. But this time, all was wet and seemed to never dry up. He expressed he would have no plan to come again.

At the same time, officials were investigating a death at the site. They said on Saturday that a person died during the event but offered few details, including whether the death was weather-related.

The muddy road is expected to dry up starting Monday, which is forecast to see clear skies, promising long waits in traffic on the final day of the annual event. But event organizers have yet to give detailed information of when gates will open to cars.

Universal Volcano Bay Water Park

You can't miss the volcano at the center of Universal's Volcano Bay Water Park. Attractions include a coaster with four-person canoes (独木舟), high-speed body slides and a lazy river with rapids and waves. An especially unique feature is the park's virtual lines. For a quick walk to the park, stay at Universal's Aventura Hotel.

Legoland Water Park

When you want a break from the bricks, head for Legoland Water Park. Families will find more than a dozen waterslides, a wave pool and a lazy river. At Creative Cove, visitors can build their own boats and race them against others, as well as test out their engineering skills by creating their own rafts (筏子) to float down the lazy river. Nearby accommodations include the Courtyard Winter Haven.

SeaWorld Orlando

SeaWorld Orlando has a mix of thrilling and more relaxed family-friendly rides. Younger kids can play around Sesame Street Land, which offers gentler rides like Elmo's Choo Choo Train and Abby's Flower Tower, complete with great views of the park. The Homewood Suites, the nearest hotel, offers a free hot breakfast daily, as well as a pool.

Fun Spot America

Located southwest of the city center, Fun Spot America features classic theme park rides such as the only wooden coaster in Orlando. You'll also find thrilling rides like the SkyCoaster. At about $60 per ticket, Fun Spot America is a great value for some thrills, and much more affordable than the huge Disney and Universal parks.

Alex sat quietly at the back of his Chinese class, his eyes fixed on the textbook before him. As a shy and unnoticed student, he felt like a lone wolf, struggling against the complexities of high school life. Ms Lau, his Chinese teacher, was a light in his otherwise dark world. Her warm smile and gentle behavior made her stand out among the sea of teachers. She was the only one who seemed to understand his conservative nature, always encouraging him to step out of his comfort zone.

One day, after class, Ms Lau approached Alex with excitement shining in her eyes. "Alex, I have an offer for you," she said, her voice filled with enthusiasm. "I am organizing a cultural exchange program to China, and I believe it would be a great opportunity for you to explore a new world."

Alex's heart skipped a beat, the prospect of traveling to a foreign country both exciting and terrifying. He hesitated, unsure if he had the courage to start such an adventure. But Ms Lau's firm belief in him gave him the push he needed to take a leap of faith.

Under Ms Lau's guidance, Alex began preparing for the trip. He got really interested in Chinese culture and learned about its long history and traditions. Ms Lau became his mentor(导师), teaching him not only the language but also invaluable life lessons. She taught him the importance of being confident and not giving up, reminding him that growth only happens outside one's comfort zone.

The day of departure arrived, and Alex found himself on a plane headed for China. He couldn't help but feel amazed as he stepped off the plane and into a world so different from his own. The busy streets, bright colors, and unfamiliar sounds flooded his senses. Yet, Ms Lau's comforting presence by his side provided him with the strength to face the unknown.

注意：

1. 续写词数应为150词左右；

2. 请按如下格式在答题卡的相应位置作答。

During their time in China, Alex wholeheartedly enjoyed the experience.

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Back in the United States, Alex was a changed person.

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Kunshan is the birthplace of Kunqu, blends poetry, music, intricate costumes and graceful performances. In Kunshan City, the melodies of Kunqu Opera are not confined to the stages of grand theaters, but ring out in (expected) scenes — school bells, fitness routines and even bus stop illustrations. In the streets of Kunshan, this ancient art form continues to find new life, (delicate) balancing preserving its timeless beauty and embracing the demands of modernity.

For performers like You Tengteng, actress at the Kunshan Contemporary Kunqu Theater, the act is both a challenge and a passion. You and her colleagues often discuss their latest performance (strategy), not in a traditional theater but on Douyin. In partnership with the platform, You and other performers livestream their Kunqu shows for 20 hours each month. Their goal is simple yet ambitious: (reach) a new generation of audiences who might hesitate to sit through a two or three-hour-long performance in an opera house.

To draw audiences in the digital age, the performers have condensed the intricate art form into digestible one-hour segments, (invite) viewers to experience Kunqu in more relaxed settings, whether at a café in a museum.

The strategy (seem) to be working, particularly among Chinese youth. After performances, it is not uncommon to see young fans eagerly lining up for selfies and autographs with the performers. Their newfound passion this ancient art is a testament to its evolving relevance.

I never felt an urge to learn any sign language before. My entire family is hearing, and so are all my friends. The3 languages were enough in all my interactions. Little did I know that I would discover my4 for ASL.

The5 began during my first week at college. I watched as the ASL Club6 their translation of a song. Both the hand movements and the very idea of communicating without speaking7 me. What I saw was completely unlike anything I had experienced in the past. This newness just left me8 more.

After that, feeling the need to explore further, I decided to drop in on one of ASL club's meetings. I only learned how to9 the alphabet (字母) that day. Yet instead of being10 by my slow progress, I was excited. I then made it a point to11 those meetings and learn all I could.

The following term, I12 an ASL class. The professor was deaf and any talking was13. I soon realized that the silence was not unpleasant.14, if there had been any talking, it would have caused us to learn less. Now, I appreciate the silence and the15 way of communication it opens.