Billionaire Bill Gates has offered the many thousands of graduates some career and life advice. Over a series of 14 tweets in his Tweeter posted last Monday, the world's richest man used the words “impact”, “happiness” and “progress”. He did not mention money. Instead, he told the graduates what jobs he would be looking for if he started out today.

“AI (artificial intelligence), energy and bio-sciences are promising fields where you can make a huge influence”, he wrote. Earlier this year, Gates—who famously dropped out of Harvard to found Microsoft—said that artificial intelligence had “ phenomenal” potential, and “anything connected with that would be an exciting lifetime career.” In the same speech at Columbia University, he said there is a huge growing demand in the energy field to develop reliable, cheap and clean energy.

    As well as urging new graduates to surround themselves with people who challenge you, teach you, and push you to be your best self, Gates reminded them to think of others, especially the less fortunate.

    He wrote that it had taken him decades to learn about the world's worst unfairness and described this lack of early understanding as his one big regret. “You know more than I did when I was your age,” he wrote, “ You can start fighting unfairness, whether down the street or around the world sooner.”

    He finished by asking graduates to consider the progress human has already made, saying that he believe the world is getting better. “ That matters because if you think the world is getting better, you want to spread the progress to more people and places.”

    The sixth mass extinction of life on the Earth is unfolding more quickly than feared, scientists have warned. More than 30 percent of animals with a backbone — fish, birds, amphibians, reptiles and mammals — are declining in both range and population, according to the first comprehensive analysis of these trends.

    Around a decade ago, experts feared that a new range wipeout of species was appearing. Today, most agree that it is underway — but the new study suggests that the die-out is already growing fast.

    The loss of biodiversity has recently accelerated. Several species of mammals that were relatively safe one or two decades ago are now endangered, including cheetahs, lions and giraffes, the study showed.

    There is no mystery as to why: our own ever-expanding species — which has more than doubled in number since 1960 to 7.4 billion — is eating, crowding and polluting its planetary cohabitants out of existence. By comparison, there are as few as 20,000 lions left in the wild, less than 7,000 cheetahs, 500 to 1,000 giant pandas.

    The main drivers of wildlife decline are habitat loss, over-consumption, pollution, other species, disease, as well as hunting in the case of tigers, elephants, rhinos and other large animals prized for their body parts.

    Climate change is thought to become a major threat in the coming decades, with some animals — most famously polar bears — already in decline due to rising temperatures and changing weather patterns.

    On Monday, my classmates and I heard that our astronomy teacher's mother had died. We were surprised that he was still teaching in school. My best friend was telling me that the teacher was trying to forget the pain of losing his mother and trying to be strong in the middle of teaching.

    The teacher was such a warm-hearted person and we figured that we should give him a lot of love and good cheer. That night after school, my best friend and I thought about our teacher as well as his beloved mother and then we came up with an idea.

    When we went back to school yesterday, we gave him cheer-up cards which we had taken time to decorate with flowers, hearts and peace signs. As we handed the cards to him, we could both see the light in his eyes. The smiles on his face showed how much he appreciated what we did for him. The whole atmosphere was very warm and loving, and it's hard to express in words.

    This morning, when we both went to see the teacher again, he was so happy, and gave us both a hug. This made us feel that we just might have made his day, and that he was going to be okay.

    With that, I want to remind you to take the time to smile at the ones you love, be extra generous with hugs, kisses, things of that lovely nature! Life is so precious (宝贵的), so let us be happy and enjoy the gift of life.

    Three months after Hurricane Katrina in 2005, Rebecca Sell, then 24, a photojournalist for Fredericksburg photographed a New Orleans couple worriedly examining water-spotted photo albums. As she took the photo, something within her clicked. "I told them I could take the ruined pictures, copy them and give them digitally restored (修复) photos," she recalls. Although a bit sceptical, the couple agreed. Rebecca took their photos home, restored them and took them to the couple at their temporary home. "It felt so good to be able to do that for them," says Rebecca.

    When her editor, Dave Ellis, saw the photo of the couple, he suggested they go back and restore damaged photos for even more people. So in January 2006, with paid time off from the paper, the two set up shop in Pass Christian. After posting a notice in the community newsletter, Rebecca and Dave received 500 photos in four days. For each, the pair took a new digital picture, then used high-tech software to erase water spots and restore colors. It just so happened that a popular website linked to Dave's blog about the experience, and soon Operation Photo Rescue, as it came to be known, had emails from hundreds of volunteers, including photographers and restoration experts, eager to help.

    Though digital restoration is a painstaking process, mending irreplaceable family pictures means the world to victims like Emily Lancaster, 71, who took out piles of ruined photo albums after Katrina, never thinking the mess could be saved. But she just couldn't bear to part with a few treasured pictures, including a portrait of her father, who had passed away, and a photo of her husband as a boy. Then she heard about Operation Photo Rescue. "I didn't have a whole lot of hope they could fix them, but they did," Emily says. "Almost every day I think about all the pictures I've lost. I'm so happy to have these two."

    In the five years since Katrina, Operation Photo Rescue has collected thousands of pictures ruined by floods, hurricanes and tornadoes. Volunteers make "copy runs" to disaster areas across the country to gather damaged photos from survivors; operating costs are covered by donations. "It's great to be able to give people some of their history back," says Rebecca. "One person told me that thanks to us, her grandmother got to see her photos again before she passed away. Moments like that remind me why I do this."

On that hot August day in 2023, as ash rained down and flames closed in, Jim Rhodes didn't want to be anywhere but Coulterville. "My kid called from Alabama. We first heard ·about the fire from him," Rhodes recalls. "He said, ‘Evacuate（撤离）!'I said, ‘Evacuate? To where?'"

Coulterville is a tiny town located among dry hills where local people raise cattle and other livestock. It has a main street, a park and a museum. It's got a cafe, a grocery shop and a post. And with summer temperatures routinely topping 100 degrees, it has fires—sometimes big fires.

Eventually, this big fire got a name: the Moc Fire, for the tiny town of Moccasin-where it began as a brush fire.

It burnt for 10 days, consuming almost 3,000 acres.

Rhodes woke to find his truck covered in ashand the news was broadcasting evacuation orders. Ranchers（牧场主） across the region were fighting to protect their animals, loading them into the truck or just setting them loose to find safety. Volunteers were readying fairgrounds nearby to shelter animals. Already they were filling up with dogs, cats, chickens, horses, cattle, goats, sheep and rabbits.

As residents and animals were brought out, firefighters poured in. "With them came the biggest bulldozer（挖土机）I've ever seen," says Rhodes. "And they were sent to cut the firebreak that could save the town. We knew that if it made the cut, we'd all have to get out of here."

The situation was clear. The danger was growing. But slowly Rhodes realized that he hadn't come to Coulterville just to leave when the town needed him. He stayed, joining the handful of residents who gathered around the main street where fire officials posted updates. He knew he could help somebody, somehow.

Around midmorning, a farmer he'd never met came by asking for help with animal evacuation. Rhodes's phone was still ringing, but he knew what to do. "I hung up my phone, got in the truck and headed down to his farm," he says.

Thanks to the evolution of technology, the learning-centred mobile apps can help maintain learning even outside the classrooms and make the learning activities more efficient.

Study Blue

With Study Blue, teachers can create flashcards and interactive sessions. Meanwhile, you can view the study materials anywhere anytime and share flashcards with your teacher & classmates in real time.

App Features

• Unlimited access to over 500 million study materials.

• Quizzes to track your study process.

• Set reminders on bookmarked contents.

Ratings: 4.4/5 Users: 1,000,000+ Download: Android, iOS

TED

TED helps educators to bring out a colorful classroom and prepare unique lecture presentations. Thousands of sessions by experts can help you to get knowledge & topics to discuss in classrooms.

App Features

• TED talk videos with subtitles (字幕).

• Discover interesting lectures.

• Playing is possible with no Internet connection.

Ratings: 4.6/5 Users: 10,000,000+ Download: Android, iOS

Quizzes

Quizzes make your study more interesting. There are millions of teacher-created quizzes on Quizizz and you can compete with friends online. Teachers can make the whole class play together and assign individual homework.

App Features

• Customized games for individuals.

• Track & get timely progress reports.

• Teachers are the quiz masters.

Ratings: 4.8/5 Users: 1,000,000+ Download: Android, iOS

Pocket

Pocket is a solution to learning lectures on the go. You can instantly save articles or video content for improving your classroom studies. Teachers can communicate with students and parents virtually.

App Features

• Dark-colored themes for night use.

• Multi-language support.

• Access to saved articles without the Internet.

Ratings: 4.6/5 Users: 10,000,000+ Download: Android, iOS