One night, the first floor of the house suddenly caught fire. The fire was big, and soon became a sea of fire. On the second floor lived a little girl and her grandmother; the little girl's parents had died, and she lived together with her grandma. In order to rescue the little girl, the grandmother was burned to death, leaving the little girl crying for help loudly.

    How could people enter the house? At the very moment, a man carrying a ladder rushed to the flames and entered the house through the window. When he appeared again in the eyes of the people, the little girl was in his arms. He gave the child to the crowd, and then disappeared into the night.

    This little girl had no family. Two months later a meeting was held to find a person to adopt the girl. A teacher was willing to adopt this child, and said she could give her the best education; a farmer wanted to adopt this child, saying that village life would let the child grow up healthily and happily; a rich man said, “I can give the child everything that others can do.”

    A lot of people who wanted to adopt this child said a lot about the benefits of their adopting the child. But the little girl's face had no expression. At this time, a man, through the crowd, walked straight to the little girl, and opened his arms for the little girl. People were puzzled, and they found that the man had terrible scars on his arms. The little girl let out a cry, “This is the man who saved me!” She suddenly jumped up and buried her face in his arms and sobbed. Naturally the man adopted the girl.

    At the age of seven, while his friends were spending their allowances on candy and toys, Jose Adolfo Quisocola, from Peru, came up with the creative idea of an eco-bank, which allows kids of all ages to become economically independent and financially wise while also helping the environment.

    Established in 2012, The Bartselana Student Bank is the world's first cooperative bank for kids. Whoever wants to join has to bring in at least 5 kilograms(11 pounds) of solid waste(paper or plastic) and establish a savings goal. Once accepted, all bank “partners” are required to deposit at least one additional kilogram(2.2 pounds) of recyclables on a monthly basis and obey other requirements, such as attending financial education and environmental management workshops. The waste accumulated is sold to local recycling companies, who, thanks to some clever negotiation by Jose, pay a higher-than-market rate for everything brought in by Bartselana Student Bank members. The funds received are placed in the individual's account where they collect until his／her savings goal is reached. The account holder can then withdraw his／her money, or choose to leave it and continue to grow for a bigger target.

    “At the beginning, my teachers thought I was crazy or that a child could not undertake this type of project, ” Jose recalls. “They did not understand that we are not the future of the country but its present. Luckily, I had the support of the school principal and an assistant in my classroom.”

    The youngster's persistence paid off. Today, the eco-bank, which now has the support of several local institutions, has ten educational centers and begins accepting applications from kids all across Peru. On November 20, 2018, the young boy was awarded the famous Children's Climate Prize (CCP). “Jose's eco-bank is a brilliant way of linking economy and climate impact, both in thought and practice. The potential impact is amazing,” a judge said.

    Hopefully, Jose's success will inspire more kids and adults to come up with new ideas that create value while helping the environment. As the boy says,” Together we can change the world…we just need an opportunity…”

    Tablets(平板电脑) are useful devices, but their big screens always make them as a burden to carry around without a bag. Wouldn't it be great if there were a phone with the powers of a tablet that could be folded up and fit neatly into the hand? Now something like a tablet-shaped but foldable(可折叠的) phone is about to become available. In February, Samsung and Huawei both introduced foldable phones, the Galaxy Fold and Huawei Mate X separately, to the public for the first time. Mobile phone use has entered the "foldable future", the Verge noted.

    The technology could change our lives in significant ways. These devices, due to their bendable screens, give us the larger screens we want but still fit easily into the pocket. The technology could change other devices too. For example, we could make TVs that stick to walls like posters, or fold up easily to hide away in drawers, which could help increase available space to the maximum. In a keynote address, Justin Denison, Samsung's senior vice president, called the foldable screen "the basis for the smartphone of tomorrow". "It's a blank canvas (画布) for us to do something beautiful together," he said.

    So is there nothing to stand in the way of the foldable future? According to tech news website Android Authority, the necessary displays were difficult to produce. In 2012, nine out of ten foldable screens produced were defective or unusable. Today, that 10 percent rate has been improved to almost 90 percent. However, at present these foldable devices are expensive. For example, the price of Huawei Mate X is 17, 500 RMB. That's a price that few people will be able to afford.

    But if the foldable device isn't going to change the world overnight, there is no doubt that it is coming. Patrick Moorhead, an industry expert told The Verge, "Few are debating if foldable mobile displays are the future of smartphones; the only question is when and by whom."

Plants may tell us when they're in trouble.Thirsty tomato and tobacco plants make clicking sounds,researchers have found.The sounds are ultrasonic (超声波的),meaning they are too high-pitched for human ears to hear.But when the sounds are transformed to lower pitches,they sound like popping bubbles (爆破的泡泡).Plants also make clicks when their stems (茎) are cut.

"It's not like the plants are screaming," says Lilach Hadany,an evolutionary biologist working at Tel Aviv University in Israel."Plants may not mean to make these noises.We've shown only that plants create informative sounds."

Hadany and her colleagues first heard the clicks when they set microphones next to plants on tables in a lab.The microphones caught some noises.But the researchers needed to make sure that the clicking was coming from the plants.So,the scientists placed plants inside soundproof boxes in the basement,far from the noise of the lab.There,microphones picked up ultrasonic pops from thirsty tomato plants.Though it was outside humans' hearing range,the clicking made by plants was about as loud as a normal conversation.

Cut tomato plants and dry or cut tobacco plants clicked,too.But plants that had enough water or hadn't been cut stayed mostly quiet.Wheat,corn and grapevines also made sounds when stressed out.

The researchers don't yet know why plants click.Bubbles forming and then popping inside plant tissues that transport water might make the noises.But however they happen,pops from crops could help farmers,the researchers suggest.Microphones,for example,could monitor fields or greenhouses to detect when plants need to be irrigated (灌溉).

Hadany wonders whether other plants and insects already tune into plant pops.Other studies have suggested that plants respond to sounds.And animals from pests (害虫),moths to mice can hear in the range of the ultrasonic clicks.Sounds made by plants could be heard from around five meters away.Hadany's team is now studying what the living things near the plants will do after hearing the sounds.

When I was about twelve, I headed to a restaurant for dinner with my family. It was winter, and on that night the wind was really blowing hard. 

As my mum and I headed to the restaurant from our car, a girl about my age and her mother came up to us. They asked if we had any spare change(零钱). My mum right away asked where they lived. They pointed to an old car in a parking lot across the street. The girl said there were six of them living in that car. 

My mum said she had something to do after handing the people a few dollars. She sent me inside the restaurant with my dad and my three siblings(兄弟姐妹). But she didn't come. Later, I found out she had gone home and put all the food in our cupboards into a few bags. Then, she brought that food over to the car and handed the bags to the family. I wasn't there when that happened, but I can only imagine the joy it brought to those people. A few days later, when I actually found out about what she had done, I asked her why she helped those people. She told me that they were not lucky. I remembered the face of that girl who had asked us for change. She was the same age as me, yet we looked so different. 

Here I stood, dressed in almost new clothes, headed to eat in a restaurant and then went back home to the bedroom I shared with my younger sister. I remembered thinking the other girl didn't have any food to eat and that she was heading back to a cold car shared with five other people. 

After painting this picture in my mind, I understood why my mum had done what she did. I will never forget what she did that night, and how she taught me one of the best lessons I have ever learned. 

Professor Zhang Liangren from the School of History at Nanjing University has found a unique and engaging way to transmit historical and archaeological knowledge to the public—through food vlogs. His approach, combining culinary （食物的） delights with fascinating historical insights, has taken China's social media by storm, attracting a wide audience and gathering praise for its innovative method of storytelling.

Before digging into food vlogging, Professor Zhang Liangren usually dined at the school cafeteria or restaurants near his community. However, since he started making food vlogs in the summer of 2023, he has been exploring the world extensively, dining at a variety of restaurants that were previously unknown to him. Zhang Liangren frankly admits that he is far from being a qualified "foodie": He enjoys good food, but has not yet reached the point of searching everywhere for it. What truly led him onto the path of a food vlogger was his passion for archaeology. While watching Zhang taste the food, viewers can listen to him explaining the historical stories behind the dishes. Although the food cannot be immediately tasted, the spiritual nourishment （营养） of archaeology has satisfied the taste buds （味蕾） of netizens, who have expressed their satisfaction.

Speaking of the situation at the beginning of filming, Zhang Liangren frankly admitted, "Because I rarely did these things before, I was quite uncomfortable in front of the camera at first. My Mandarin was not very good either, so my speech and movements were very awkward. But gradually, I got used to it, and overall, it's much better than before."

As for which places he prefers to visit for check-ins, Zhang Liangren states that he prefers shops with a certain level of fame, "It must be down-to-earth, the kind of place that caters to the common people." He mentioned that he usually chooses small stands or shops with a long history and good reputation. Sometimes he also selects based on festivals, tasting the food while narrating the methods of preparation and the cultural significance behind the dishes.