People and animals often enjoy loving relationships with each other. When people adopt domesticated (家养的) animals into their families as pets, animals give humans the blessings of companionship and fun in return. In the wild, animals sometimes carry out dramatic rescues of people in dangerous situations, miraculously (奇迹般地) sensing human needs and jumping in without fear to help.

    In 2000, a 6-year-old boy unified Elian Gonzalez left Cuba on a boat bound for Florida in the United States, but the boat sank and everyone aboard drowned except Elian and two adults. Elian and the other two survivors held onto inner tube for 48 hours to try to stay afloat in the sea. After a while, however, Elian began to lose strength, slipping under the water and then grabbing the tube again as he fought to stay alive.

    A small group of dolphins noticed Elian struggling and swan over to him to help. The dolphins formed a circle around the inner tube and took turns using their noses to lift Elian until fishermen working in the area discovered and rescued Elian and the two adults who floated nearby. The fishermen reported that, when they discovered Elian, he was repeating a prayer that his mother had taught him before drowning, asking guardian angels to protect him.

    Miraculously, the dolphins knew that a child would need more help than adults, so they focused on Elian — and they figured out exactly what needed to be done and cooperated to carry out that plan successfully. They made it!

    Many students are involved in social practice besides study. On Monday, April 17, 2017, a unique partnership between Saint Agatha and Phalanx Family Services began. Saint Agatha is a primary school and day care program. Phalanx Family Services is a full-service, nonprofit （非盈利的）organization offering various programming for in-need families living in Chicago.

    Thirteen in-school youths, between the ages of 16~18, started training as young reporters in an eight-week camp organized by the two organizations. The program is designed to teach them how to become city reporters. After completing the program successfully, they will receive a job reporting for one of nine online news about the project.

    The very thought of 13 youths' improving reading and writing levels and hunting for career opportunities in journalism（新闻业）is exciting! Imagine, Chicago youths report positive and inspiring stories about the happenings around Chicago's black and brown communities, which are much better than frightening stories coming from local and national medium.

    I admire Saint Agatha and Phalanx Family Services for training youths in a needed skill set. As I see it, technology has harmed youths' reading and writing abilities. My father often says, “Youth is wasted on the young.” It sounds like the wisdom of the old. But Saint Agatha offers training and the opportunity for youths to take an active part in reporting the happenings and events they experience day to day in order to prove students don't waste youth.

    It was a cold winter day. A woman drove up to the Rainbow Bridge tollbooth(收费站). “I'm paying for myself, and for the six cars behind me,” she said with a smile, handing over seven tickets. One after another, the next six drivers arriving at the tollbooth were informed, “Some lady up ahead already paid your fare.”

    It turned out that woman, Natalie Smith, had read something on a friend's refrigerator: “Practice random (任意的 )kindness and senseless acts of beauty.” The phrase impressed her so much that she copied it down.

    Judy Foreman spotted the same phrase on a warehouse wall far away from home. When it stayed on her mind for days, she gave up and drove all the way back to copy it down. “I thought it was beautiful,” she said, explaining why she'd taken to writing it at the bottom of all her letters, “like a message from the above.” Her husband, Frank, liked the phrase so much that he put it up on the classroom wall for his students, one of whom was the daughter of Alice Johnson, a local news reporter. Alice put it in the newspaper, admitting that though she liked it, she didn't know where it came from or what it really meant.

    Two days later, Alice got a call from Anne Herbert, a woman living in Martin. It was in a restaurant that Anne wrote the phrase down on a piece of paper, after turning it around in her mind for days.

    “Here's the idea,” Anne says. “Anything you think there should be more of, do it randomly.” Her fantasies include painting the classroom of shabby schools, leaving hot meals on kitchen tables in the poor part of town, and giving money secretly to a proud old lady. Anne says, “Kindness can build on itself as much as violence can.”

    The acts of random kindness spread. If you were one of those drivers who found your fare paid, who knows what you might have been inspired to do for someone else later? Like all great events, kindness begins slowly, with every single act. Let it be yours！

    Whenever we see a button on a doorbell or on a remote, we may press it. This is true in most cases. But some buttons are actually fake(假的), like the "close" button on an elevator.

    Many people are in the habit of pressing the "close" button because they don't have the patience to wait for the elevator doors to shut. But according to experts, the buttons are a complete trick—the doors will not close any faster however hard you press.

    It started in the 1990s when the Americans with Disabilities Act was passed, making sure that all elevators stayed open long enough so that people with disabilities could enter. Only firefighters and maintenance workers(维修工) can use the buttons to speed up the door-closing process if they have a code or special keys. But to normal elevator riders, the buttons aren't completely useless.

    According to psychologists, fake buttons can actually make you feel better by offering you a sense of control. Experts have showed that a lot of buttons that don't do anything exist in our lives for this same purpose. For example, pedestrian crosswalk buttons don't live up to their names. Pressing them used to help make the traffic signals change faster, but that was before computer-controlled traffic signals were introduced.

    But psychologists found it interesting that even when people are aware of these little "white lies". They still continue to push fake buttons because as long as the doors eventually close, it is considered to be worth the effort.

    That habit is here to stay, John Kounios, a psychology professor at Drexel University in the US, told The New York Times. "After all, I've got nothing else to do while waiting. So why not try the chance?"

    To personal trainer Sammy Callari, 13-year-old Parker Seward is more than a client(客户). He's his "little brother". Over the past year, the pair have bonded. They play basketball together, share meals and dance to hip-hop like no one's watching.

    The trainer was asked to work with the 13-year-old boy, who has Down syndrome(唐氏症), because his coworker who dealt with the boy was out of town last spring. Callari had never worked with someone with a disability before. He was anxious the first day he met Parker. But Parker's big smile and cheery introduction immediately put him at ease. He reminded Callari of himself when he was a teenager. Like Parker, Callari has also faced his fair share of challenges over the years.

    As a high schooler, Callari described himself as being the weak kid. When it came to sports, he was always overlooked. His dream of playing baseball in college quickly faded away. When he went to college, Callari turned to a new sport. His younger brother trained him to become a boxer. Callari participated in five matches. Out of four of those fights he was the underdog, and he won three times. "I know how it feels," Callari said. "Society tells you that you can't do this, you can't do that." When it comes to Parker, Callari refuses to accept the word "can't".

    The friends meet twice a week to train. They bike, box, run and work on their core with push-ups. Parker has a short attention span, so it's Callari's job to keep him focused. "If Parker can do it, if he's having fun, even with his frustration, then people will ask, "Why can't I do that?" Callari said. "That's the whole task right now."

    Callari recalls Parker's mom once thanking him for taking a "chance" on her son. Callari told her he never viewed it that way. Parker may be the student, but Callari says he's also the one who's learning.

    The ocean is filled with eight million tons of rubbish—enough to fill five carrier bags for every foot of coastline on the planet. But a new invention could deal with this problem, one port at a time.

    A pair of surfers from Perth, Australia, has invented a "floating bin" that automatically draws rubbish floating on the water into it like a vacuum (真空) cleaner. While the invention may do little to battle against five giant "garbage islands" that flow around the world's  major ocean gyres (环流), it could stop waste from leaving harbours and marinas, for example. Peter Ceglinski and Andrew Turton said their device could spell the end of polluted seas.

    The concept is simple: A bucket connects to a water pump, drawing in any floating trash inside a removable net bag. There is also an optional oil-water separator system inside the pump. It can remove oil from the seawater before spitting it back into the ocean — pollution-free — through the other side of the pump.

    The water filtration (过滤) system is much like what you'd find in a fish tank, but it has the potential to clean up an entire ocean. The seabin can run 24/7, according to its website. And, amazingly, Peter and Andrew say they have never caught a fish or sea animal in their pumps in four years of testing.

    The Seabin Project aims to improve on the traditional and sometimes expensive — harbor cleaning methods of having a person physically remove trash from the water or sending boats equipped with nets to collect it. While it's not as extensive as 21-year-old Boyan Slat's plan to clean the entire Pacific Ocean in 10 years, starting in 2020, the seabin's creators said their device is something that harbors can start using to clean our oceans now.

    They're starting "close to the source of the problem in a controlled environment," Seabin's website states. "It's a big mission, but it can be done. In fact, we're doing it right now."