It is reported that conservation groups in North America have been arguing about the benefits and dangers of wolves. Some groups believe wolves should be killed. Other people believe wolves must be protected so that they will not disappear from the wilderness(荒野).

For Killing Wolves

    In Alaska，the wolf almost disappeared a few years ago，because hunters were killing hundreds of them for sport. However, 1aws were established to protect the wolves from sportsmen and people who catch the animals for their fur．So the wolf population has greatly increased. Now there are so many wolves that they are destroying their own food supply.

    A wolf naturally eats animals in the deer family. People in the wilderness also hunt deer for food. Many of the animals have been destroyed by the very cold winters recently and by changes in the wilderness plant life．When the deer can't find enough food，they die.

    If the wolves continue to kill large numbers of deer, their prey(猎物) will disappear some day. And the wolves will, too. So we must change the cycle of life in the wilderness to balance the ecology. If we killed more wolves, we would save them and their prey from dying out. We'd also save some farm animals.

    In another northern state, wolves attack cows and chickens for food. Farmers want the government to send biologists to study the problem. They believe it necessary to kill wolves in some areas and to protect them in places where there is a small wolf population．

Against Killing Wolves

    If you had lived long ago，you would have heard many different stories about the dangerous wolf．According to most stories，hungry wolves often kill people for food．Even today，the stories of the “big bad wolf” will not disappear．

    But the fact is wolves are afraid of people, and they seldom travel in areas where there is a human smell．When wolves eat other animals，they usually kill the very young, or the sick and injured. The strongest survive. No kind of animal would have survived through the centuries if the weak members had lived. And has always been a law of nature.

    Although some people say it is good sense to kill wolves，we say it is nonsense! Researchers have found wolves and their prey living in balance．The wolves keep the deer population from becoming too large, and that keeps a balance in the wilderness plant life.

    The real problem is that the areas where wolves can live are being used by people. Even if wilderness land is not used directly for human needs, the wolves can't always find enough food. So they travel to the nearest source, which is often a farm. Then there is danger. The “big bad wolf” has arrived! And everyone knows what happens next.

    Larry Bird was born in 1965 in a small town in the Middle Western State of Indiana. He was tall, and good at playing basketball. He attended Indiana State University. Bird led the team into the College Basketball Championship Game.

    After completing his college studies, Larry Bird began playing professional basketball for the Boston Celtics. He remained with the Celtics for all his professional career. During those 13 years, Larry Bird was named the Most Valuable Player of the Year three times. He scored more than 21, 000 points, and he played in 13 of the highest scoring games in his team's history. Once he scored 60 points in just one game.

    During his very successful basketball career, Larry Bird suffered a number of injuries. In 1989, he stopped playing because of pain in his feet. He returned in 1990, but the pain in his feet returned too. In the next two years he experienced more medical problems, and he missed many games.

    Larry Bird did play on the Dream Team－the first Olympic Team with professional players. However, after winning the gold medal in Barcelona, he announced that he would retire from professional basketball. Larry Bird said he would have liked to play a little longer, but he could not because of his health problems. He also said it was a good time to leave the game. He wanted to be remembered as a winner.

    Breakdancing is set to make its debut(首次亮相) as an Olympic sport at Paris2024, Tony Estanguet, head of the Paris organizing committee, said on February 21". Skateboarding, sport climbing and surfing which have already been added to the 2020 Tokyo Olympics, have been invited to return in Paris.

    Estanguet said the choices responded to a need to make the Olympics "more urban" and “more artistic". "We have chosen to present the International Olympic Committee (IOC) with the four sports because they are creative, appealing to youth and completely in line with our vision. They reflect perfectly Paris 2024's identity.”

    Breakdancing is an example of a sport "which can be played anywhere and anytime in urban and other environments." It appeared at the 2018 Youth Olympics in Buenos Aires in the form of head-to-head "battles". In competitive breakdancing, "breakers face off in "battles" against each other, either as individuals or teams. Breakdancers use- a mix of physical and artistic skills combining elements from gymnastics or acrobatics(杂技).

    The IOC had announced that the number of competitors at Paris 2024 would be restricted to 10,500, which limited the opportunity to add sports. But the organizers said the inclusion would not necessitate the construction of permanent facilities and would involve just 248 competitors, including 32 breakdancers. The surfing events are likely to be held in established surf center such as Biarritz or Lacanau in southwest France.

    The inclusion still needs to be rubberstamped by the IOC, which is expected to decide on which sports to add in Paris after next year's Tokyo Games.

    Boomerang children who return to live with their parents after university can be good for families, leading to closer, more supportive relationships and increased contact between the generations, a study has found.

    The findings contradict research published earlier this year showing that returning adult children trigger a significant decline in their parents' quality of life and wellbeing.

    The young adults taking part in the study were "more positive than might have been expected about moving back home—the shame is reduced as so many of their peers are in the same position, and they acknowledged the benefits of their parents' financial and emotional support. Daughters were happier than sons, often slipping back easily into teenage patterns of behaviour, the study found.

    Parents on the whole were more uncertain, expressing concern about the likely duration of the arrangement and how to manage it. But they acknowledged that things were different for graduates today, who leave university with huge debts and fewer job opportunities.

    The families featured in the study were middle-class and tended to view the achievement of adult independence for their children as a "family project". Parents accepted that their children required support as university students and then as graduates returning home, as they tried to find jobs paying enough to enable them to move out and get on the housing ladder.

    "However", the study says, "day-to-day tensions about the prospects of achieving different dimensions of independence, which in a few extreme cases came close to conflict, characterised the experience of a majority of parents and a little over half the graduates".

    Areas of disagreement included chores, money and social life. While parents were keen to help, they also wanted different relationships from those they had with their own parents, and continuing to support their adult children allowed them to remain close.

    When 12 girls from San Fernando high school in California received a grant (助学金) to develop an invention to solve a real-world problem, they decided to create a solar-powered shelter. Now for over a year, the girls have been working after school and over the winter and spring breaks to complete their project. "They have this amazing drive that I've never seen before," said Violet Mardirosian, a math teacher at San Fernando High. "I thought at the beginning that maybe some of them would give up, saying 'I didn't expect this much work,' but they don't. They're just working hard and they're not giving up."

    Living in a low-income community (社区), the girls have seen the problem of homelessness first-hand, which is why they chose that population to create a product for. Many of them are also from immigrant families and hope the solar-powered shelter might help refugees (难民). Seventeen-year-old Maggie Mejia said that while she had no engineering experience, the girls figured out as a team how to create the prototype (雏形), using how-to videos and books that taught them how to code. But the most important lesson she's learned over the course of the project isn't technical. "I've learned a lot about helping others, helping the community and showing a better world to other people," she said.

    The girls have been invited to MIT to show their invention. Mardirosian says all the participating students have expressed interest in going into STEM (science, technology, engineering, mathematics) fields and that students from lower grades are already expressing interest in being involved next year. She says, "Many of them didn't think about engineering before. They thought maybe they're not made out to be an engineer. But working together, now they realize they're all needed in this field. Everyone has found their importance in this picture."

    A few weeks ago, I sat with a California farmer named Dave Ribeiro. I asked him what he wished to know about farmers. He smiled and said, "That we walk among you. We look like you and talk like you. We have advanced degrees and hobbies, just like you."

    Take Dave for example: He's a young man with a music degree. And if you walked past him on the street, you'd never think, "There goes a farmer."

    Is someone like Dave who you picture when you think of a farmer? Probably not. I think that most people would picture a man in his overalls(工作服). I can tell you, that does not represent Dave or any of the many other farmers I have gotten to know.

    Not only do we have to throw out our previous impression of farmers, but farming as a whole doesn't look much like it used to either. We recently sent a team out to see what modern farming looks like, and they found farmers to be completely different from our usual ideas about them and also came across them in some unexpected places.

    In a parking lot in a neighborhood of Brooklyn, they met a new crop of young farmers who were trying to bring fresh greens closer to eaters in the city by growing them in high-tech indoor vertical(垂直的) farms. In a Florida field under the fight path of an airport, they discovered farmers with university degrees growing plants that might someday fuel our cars. And in a modern farm in California, they observed how farmers were using technology to take the best possible care of their animals.

    These farmers all spend their days in very different ways—none of them looks like the previous farmer we have in our mind—but they're all working on new ways to feed our planet. Not only do we need to change our idea of what farming looks like, but we also need to change our view of where solutions can come from. Feeding all of us is going to take all of us working together.