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We watch our salt and fat intake to protect our hearts. We exercise and take calcium to protect our bones. We wear sun-protective clothing to protect our skin. But what can we do to protect our eyes?. We asked experts what lifestyle steps people should be taking to protect their vision and eye health. 

Take a break from screens

There's no scientific evidence that the blue light from electronic screens damages our eyes, but staring at a screen can leave eyes tired and may even blur (使模糊) vision. The National Institutes of Health recommends taking a break every twenty minutes to look at something about twenty feet away for twenty seconds..

Eat for your eyes

. Research shows that foods rich in vitamin C, vitamin E, zinc, and omega-3 fatty acids can help lower the risk of age-related eye problems. For lots of vitamin C, grab strawberries, tomatoes, red and green peppers, and broccoli. For vitamin E, choose peanuts, almonds, sunflower seeds and pumpkin. For zinc, good sources are beef, fortified cereals and especially oysters. For omega-3 fatty acids, look for fish like salmon, tuna and halibut. 

First, the obvious: Smoking isn't just bad for your lungs; it can harm eyes too. "Smoking is terrible," says Dr. Akpek. "It causes dry eyes and makes eye diseases worse."

Also, try not to rub your eyes. "Rubbing makes inflammation (炎症) worse," says Dr. Akpek. "The more you rub, the more sick your eyes will get. It can lead to infections." Instead, "take medication or use drops."

Contact a specialist

Finally, don't forget to see an eye specialist for a checkup. , and all are best treated when found early. For most people, unless there are noticeable problems, the experts recommend a baseline exam at age 40 and then follow-ups as recommended by the doctor.

Li Bai holds a wine cup in his hand, while Du Fu sits in front of a desk, writing poems on the paper in front of him. It's not that we have traveled to the past. Modern technology has brought them "back to life".

The two great poets, along with other humanoid robots—robots who look similar to real human beings, were presented at the World Robot Conference 2023 in late August in Beijing. "The skin is made of medical-grade bionic silicone (仿生硅胶), which is why the skin looks soft and even the veins (血管) can be seen through it," CGTN explained in a video about Liaoning-based producer EXBOBOTS.

Researchers are also trying hard to create other features of humans on robots. A US robotics startup Apptronik brought out its humanoid robot called Apollo on Aug 23. Apollo has around 30 muscles. However, "humans have around 300 muscles in our bodies," Nick Paine, the co-founder of the company, told CNN. For now, engineers can only reduce the number of the muscles, allowing them to do basic movements like holding objects and walking."Apollo still has a long way to go," said Nick.

The robot also contains cameras and sensors in its head, helping it map out a 360-degree view of its environment. They also help the robot keep balance when walking on uncertain surfaces.

Nowadays, bionic human-like robots mostly work with humans, as tour guides or by helping visitors at front desks. There are also robots that share the work of nurses, such as handing out medicine. This could be because people are comfortable living and working with machines that look or act like them. They can "arouse strong feelings with people," a US robotics scientist Marc Raibert told New Yorker.

As more humanoid robots come out, safety will be the key, according to the Robot Report website. When a 70-kilogram robot breaks down and falls, humans nearby may be hurt. 

During the summer holiday, visiting museums has become a new fashion, with several famous museums being considered as "must-visit" places by visitors. Tourists were seen queuing for long hours in front of museums and getting entrance tickets became more challenging.

According to media reports, the Henan Museum received more than 12,000 visitors this summer, nearly double that of the same period in 2019. The Hangzhou Museum recorded 12,800 visitors on July 16, setting a new daily attendance record. In response to the growing need, 46 museums in Beijing canceled their Monday closures and remained open daily until August 31. 

According to Xinhua News Agency, the "museum fever" can be caused by various factors, including the public's increasing enthusiasm for traditional Chinese culture, the increasing market for youth educational tours and summer camps, as well as the continuous development of museums.

Lin Liugen, the director of the Institute of Archaeology at Zhejiang University, said the "museum craze" reflects a deep connection between the public and traditional culture. As the economy and society progress, more people want to have a deeper understanding of China's rich culture and history.

Summer camps, family trips and educational tours have been the primary forms of tourism this summer, with museum visits becoming a must-do activity for travelers. 

Besides, the application of new technologies has made cultural relics (遗物) easier to reach. For instance, 3D projection technology breathes life into those relics, enabling them to come alive before visitors' eyes. AR glasses offer a special experience by allowing visitors to enjoy relics through voice orders and sight recognition. Additionally, an advanced intelligent lighting system helps display relics more clearly and vividly. Liu Yanchang, the curator（馆长）of the Shandong Museum, said "In the future, more and more people will take visiting museums as a kind of habit and lifestyle." On how to better meet museumgoers' needs, Sun Mingli, deputy curator of the Suzhou Museum, says that popular museums may consider using hourly booking systems or hosting "cloud exhibitions" to improve visitor experience.

A mother of nine who started medical school when her youngest child was 4 years old graduated with her degree and plans to be a neurosurgeon (神经外科医生). 

Sarah Merrill, now 41, said her journey to medical school began at age 17. She then met her husband and got married. Merrill first thought about going to school part-time to get a degree, but later she decided to follow her dream of attending medical school. Certainly, it was a challenge. Speaking of her successfully returning to university, Merrill owed it to her family largely. "When I was accepted at Mayo Clinic Alix School of Medicine, we moved from Pennsylvania to Arizona," said Merrill, who is moving to Indiana with her family to begin her residency (实习期) in neurosurgery. "In fact, they volunteered these movements. I know it was tough for all of us."

Merrill and her children often have "homework parties" where they study for their own courses. Merrill's choice has given a kind of stimulus to her children. Merrill felt touched knowing her 11-year-old daughter wants to become a surgeon and overhearing her son tell his friends his mom's going to be a cool brain surgeon, though he doesn't understand that really.

Merrill's next step into a neurosurgery residency will take her into a male-dominated field where only 5% of board certified neurosurgeons are women. Dr. Michele Halyard at Mayo Clinic Alix School of Medicine said Merrill was known as a focused student. Halyard said, "If you can deal with nine children patiently, the residency should be a piece of cake because no amount of stress will make you fail."

Merrill had considered choosing a more family-friendly career, but, again, she chose to follow her original dream. It's the same advice she would give to all. "Set the goal that is what you're really enthusiastic about, and it helps to think small. If you know what your interest is, focus on the next step. Then you'll get where you want to go."

The Importance of Being Earnest (Author: Oscar Wilde) 

This comedic play by Oscar Wilde takes a sharp look at Victorian social values while following two men－Jack Worthing and Algernon Moncrieff－as they tell lies to bring some excitement to their lives. The Importance of Being Earnest was Wilde's final play, and some consider it his masterpiece.

A Raisin in the Sun (Author: Lorraine Hansberry) 

The story follows the Youngers, a working class black family living on the South Side of Chicago who move to an all-white neighborhood and struggling with the unfair treatment. In 1959, Lorraine Hansberry became the first black playwright to get a play produced on Broadway. 

Frankenstein (Author: Mary Wollstonecraft Shelley) 

The story was published in 1818 and introduced readers to Dr Victor Frankenstein, a scientist who brings to life a creature that he put together from the parts of the dead body. Although Dr Frankenstein is frightened by his creation and gives up the plan halfway, the creature manages to educate itself and then seeks a punishment on his creator. The novel explores humanity's desire for creation and the fear of change it brings.

Animal Farm (Author: George Orwell) 

A group of farm animals fight against their master, Mr Jones, after they realize he is mistreating them and offering them nothing in return for their work. When they challenge the leadership, they are disciplined for speaking out. This classic isn't about animal rights. It is a larger criticism (批判) of Soviet Communism. Orwell wrote it to protest against Stalinism in Russia.

Ballet was a way of life in Kelly's family. Her elder sister Serena was now dancing at a top college. Though Kelly's mom always wanted her to follow in her sister's footsteps and Kelly herself was good at ballet, her love for ballet had faded years before, and she was eager for a new challenge.

One day at school, as Kelly left the dance studio, she walked past the gym, fascinated by boxers training inside the boxing ring(拳击赛场). She was deeply impressed by how hard they hit and how fast they moved. In fact, she'd long been attracted to boxing.

She pulled a piece of paper from her backpack. On the familiar Oakwood High School Club Sign-up Sheet was the phrase：BOXING CLUB TRYOUT(选拔).That was what Kelly really wanted to do. She knew her mom had high expectations for her when it came to ballet. Tired of trying to keep up with her sister, Kelly was ready to carve(雕刻) her own path.

The next day, she gathered her courage and told Serena about her new passion. At first, Serena didn't understand and thought she was just joking. But when she saw Kelly was serious, she replied, "You know Mom wants you to be a ballet dancer, right? Besides, boxing is only for boys, and you're so good at ballet. Lean into your strength, Kelly."

"But this is where I want to put my strength,"Kelly insisted, "and what exactly does ‘only for boys' mean, anyway? Boxing is a sport for everyone!"

Gradually, touched by her determination and passion, Serena began to understand and support her. Kelly could feel it. Her sister was going to respect her decision, no matter what. But that was nothing compared to the preparations for the tryout, where she was required to show her footwork(步法) and punching（击打）abilities with other candidates(候选人). Boxing didn't come natural to Kelly, but she had made up her mind to stick with her choice.

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。

Then Kelly began her training for the tryout, keeping it a secret from her mom.

……

The following Monday, results of the boxing tryout were posted.

注意： 1．词数100左右； 2．可以适当增加细节，以使行文连贯。

Dear Mike, 

I'm Li Hua, chairman of the students' union.

……

Yours sincerely,

Li Hua

Soon, every robotic dog will have its day!

Isn't it nice to always have a lovely dog follow you around and respond when (ask) to sit down or shake hands? What the dog has some unique skills, such as standing on one leg while resting on a chunk of tofu without destroying it, or continuously making back flips(后空翻)? This would be even better.

In fact, a life-like quadrupedal(四只脚的)robotic dog  is developed by Chinese tech company Xiaomi Corp seems like that special one.

 (weigh) 8.9 kilogram, about the size of a Doberman, CyberDog 2 is the latest push by Xiaomi to popularize quadrupedal robotics. With a black, shiny, futuristic design, CyberDog 2 can run along at speeds of 3.2 meters per second, analyze its surroundings in real-time, create navigational maps, plot its destination,  avoid obstacles(障碍物).

"Coupled with human posture and face (recognize) tracking, CyberDog is capable of following its owner and avoiding obstacles," said Lei Jun, CEO of Xiaomi.

"This is the first time I (see) a robotic dog in reality. It is quite cool!" said Zhang Lu, university student in Wuhan, Hubei province, after witnessing CyberDog 2 during an exhibition earlier this month. "I have seen videos of people walking robotic dogs online. But it is (interesting) in reality," Zhang said, adding that domestic technology products have changed and developed rapidly.

On being asked  the robot dog can help deliver parcels, an employee at Xiaomi said as long as the weight of the package is within the acceptable range of the flat back area of the robotic dog, it can be done.

Adventure is in my blood. And I had been considering how I was going to celebrate my high school graduation. I didn't just want a small 1 in the backyard, I started thinking about doing a solo（独自的）2 somewhere out of the ordinary. I took out the 3 and drew a 1, 500-mile route along which I would be 4 from the northernmost point in Norway to the southernmost section of Sweden. When I 5 my plan with my dad, he 6 as I thought he would. Because I got my adventurous 7 from him, he was all for it.

I had only been away from my home for three days, but there was an inner 8  going on. Part of me was homesick and doubting whether I really could 9 . The other part of me was ready to 10  to myself and my family that I could do it by myself.

On the road, I met another bicyclist who was quite a bit older than I was. He started his journey alone by bike at the southern part of Norway and just finished. I could tell he had a great sense of 11 . It encouraged me not to 12 .

As I listened to my favourite artists on my MP4 player, I pedaled with my feet. There was nobody around me for miles. 13 , that wasn't entirely true. There were millions of mosquitoes (蚊子). My arms were so dotted(布满) with 14 that they looked like a topographical (地形的)map. But however 15 it would be, nothing could stop my advance on the destination. As you know, adventure is in my blood.

As we age, even if we're healthy, the heart just isn't as efficient in processing oxygen as it used to be. In most people the first signs show up in their 50s or early 60s. And among people who don't exercise, the changes can start even sooner.

"Think of a rubber band(橡皮筋). In the beginning, it is flexible, but put it in a drawer for 20 years and it will become dry and easily broken," says Dr. Ben Levine, a heart specialist at the University of Texas. That's what happens to the heart. Fortunately for those in midlife, Levine is finding that even if you haven't been an enthusiastic exerciser, getting in shape now may help improve your aging heart.

Levine and his research team selected volunteers aged between 45 and 64 who did not exercise much but were otherwise healthy. Participants were randomly divided into two groups. The first group participated in a program of nonaerobic(无氧) exercise—balance training and weight training—three times a week. The second group did high-intensity aerobic exercise under the guidance of a trainer for four or more days a week. After two years, the second group saw remarkable improvements in heart health. 

"We took these 50-year-old hearts and turned the clock back to 30-or 35-year-old hearts," says Levine. "And the reason they got so much stronger and fitter was that their hearts could now fill a lot better and pump (泵送) a lot more blood during exercise." But the hearts of those who participated in less intense exercise didn't change, he says.

"The sweet spot in life to start exercising, if you haven't already, is in late middle age when the heart still has flexibility," Levine says. "We put healthy 70-year-olds through a yearlong exercise training program, and nothing happened to them at all."

Dr. Nieca Goldberg, a spokeswoman for the American Heart Association, says Levine's findings are a great start. But the study was small and needs to be repeated with far larger groups of people to determine exactly which aspects of an exercise routine make the biggest difference.

Languages have been coming and going for thousands of years, but in recent times there has been less coming and a lot more going. When the world was still populated by hunter-gatherers, small, tightly knit (联系) groups developed their own patterns (模式) of speech independent of each other. Some language experts believe that 10000 years ago, when the world had just five to ten million people, they spoke perhaps 12000 languages between them.

Soon afterwards, many of those people started settling down to become farmers, and their languages too became more settled and fewer in number. In recent centuries, trade, industrialization, the development of the nation-state and the spread of universal compulsory education, especially globalization and better communications in the past few decades, all have caused many languages to disappear, and dominant languages such as English, Spanish and Chinese are increasingly taking over.

At present, the world has about 6800 languages. The distribution of these languages is hugely uneven. The general rule is that mild zones have relatively few languages, often spoken by many people, while hot, wet zones have lots, often spoken by small numbers. Europe has only around 200 languages, the Americas about 1000, Africa 2400, and Asia and the Pacific perhaps 3200, of which Papua New Guinea alone accounts for well over 800. The median number (中位数) of speakers is a mere 6000, which means that half the world's languages are spoken by fewer people than that.

Already well over 400 of the total of 6800 languages are close to extinction(消亡), with only a few elderly speakers left. Pick, at random, Busuu in Cameroon (eight remaining speakers), Chiapaneco in Mexico (150), Lipan Apache in the United States (two or three) or Wadjigu in Australia (one, with a question-mark): none of these seems to have much chance of survival.

I work with Volunteers for Wildlife, a rescue and education organization at Bailey Arboretum in Locust Valley. Trying to help injured, displaced or sick creatures can be heartbreaking; survival is never certain. However, when it works, it is simply beautiful.

I got a rescue call from a woman in Muttontown. She had found a young owl(猫头鹰) on the ground. When I arrived, I saw a 2-to 3-week-old owl. It had already been placed in a carrier for safety. 

I examined the chick(雏鸟) and it seemed fine. If I could locate the nest, I might have been able to put it back, but no luck. My next work was to construct a nest and anchor it in a tree.

The homeowner was very helpful. A wire basket was found. I put some pine branches into the basket to make this nest safe and comfortable. I placed the chick in the nest, and it quickly calmed down.

Now all that was needed were the parents, but they were absent. I gave the homeowner a recording of the hunger screams of owl chicks. These advertise the presence of chicks to adults; they might also encourage our chick to start calling as well. I gave the owner as much information as possible and headed home to see what news the night might bring.

A nervous night to be sure, but sometimes the spirits of nature smile on us all! The homeowner called to say that the parents had responded to the recordings. I drove over and saw the chick in the nest looking healthy and active. And it was accompanied in the nest by the greatest sight of all — LUNCH! The parents had done their duty and would probably continue to do so.

Rome can be pricey for travelers, which is why many choose to stay in a hostel (旅社). The hostels in Rome offer a bed in a dorm room for around $25 a night, and for that, you'll often get to stay in a central location with security(安全) and comfort.

Yellow Hostel

If I had to make just one recommendation for where to stay in Rome, it would be Yellow Hostel. It's one of the best-rated hostels in the city, and for good reason. It's affordable, and it's got a fun atmosphere without being too noisy. As an added bonus, it's close to the main train station.

Hostel Alessandro Palace

If you love social hostels, this is the best hostel for you in Rome. Hostel Alessandro Palace is fun. Staff members hold plenty of bar events for guests like free shots, bar crawls and karaoke. There's also an area on the rooftop for hanging out with other travelers during the summer.

Youth Station Hostel

If you're looking for cleanliness and a modern hostel, look no further than Youth Station. It offers beautiful furnishings and beds. There are plenty of other benefits, too; it doesn't charge city tax; it has both air conditioning and a heater for the rooms; it also has free Wi-Fi in every room.

Hotel and Hostel Des Artistes

Hotel and Hostel Des Artistes is located just a 10-minute walk from the central city station and it's close to all of the city's main attractions. The staff is friendly and helpful, providing you with a map of the city when you arrive, and offering advice if you require some. However, you need to pay 2 euros a day for Wi-Fi.