It's a popular belief that a fish's memory lasts for only seven seconds. It may seem sad to think that they don't remember what they've eaten or where they've been, and they don't recognize you or any of their friends — every moment in their life would be like seeing the world for the first time.

    But don't be so quick to feel sorry for them. A new study has found that fish have a much better memory than we used to think. In fact, certain species of fish can even remember events from as long as 12 days ago.

    In the study, researchers from MacEwan University in Canada trained a kind of fish called African cichlids to go to a certain area of their tank to get food. They then waited for 12 days before putting them back in the tank again.

    Researchers used computer software to monitor the fish's movements. They found that after such a long break the fish still went to the same place where they first got food. This suggested that they could remember their past experiences.

    In fact, scientists had been thinking for a long time that African cichlids might have a good memory. An earlier study showed that they behaved aggressively（挑衅地） in front of certain fish, perhaps because they remembered their past “fights”. But until the latest findings, there was no clear evidence.

    Just as a good memory can make our lives easier, it also plays an important part when a fish is trying to survive in the wild.

    “If fish are able to remember that a certain area contains safe food, they will be able to go back to that area without putting their lives at risks,” lead researcher Trevor Hamilton told Live Science.

    For a long time, fish were placed far below chimpanzees, dolphins and mice on the list of smart animals. But this study has given scientists a new understanding of their intelligence.

    Making a good job choice is almost as good as choosing a good life. So, choosing a job is one of the most important decisions to make in life.

    For my job, there are three important things that I will consider: The first one—that I must work in an area I like—is most important to me. Someone once said if you find a job that you enjoy, then you won't have to work another day. I would like to work in an area where I can be more creative. I would like to be the most valuable member there. All this is possible only if I like what I do.

    The second one is that the area of my work must lead me to solve some new and hard problems. I would like to stay in the same area for a long time. In order for this to happen, the work must provide enough problems. More than just working to live, I enjoy making a difference and trying my best for the whole progress. I would also like to be well remunerated for my hard work, so I can lead a comfortable life with this hard-won money. Then I can provide the best for my family.

    The third important thing is that I would like to work in an area that would help other people. The work in my mind is in fields such as the army, training or management. In such areas, I can help to develop the abilities of others and bring out their best. It would be a most satisfying job to help young people to become the best that they can be. When I become old, I would like to look back with a great sense of satisfaction that thousands of people have become better persons through my work.

    I accept the idea that no one should make a choice of a job suddenly or quickly. He should decide what he wants to be in the long run. Then, he should decide how he works towards it. He should study the proper courses, read the books and speak to knowledgeable persons in that field before making a job choice. A good choice will most probably lead to a better life.

    When 19-year-old Sophia Giorgi said she was thinking of volunteering to help the Make-A-Wish Foundation (基金会)，nobody understood what she was talking about. But Sophia knew just how important Make – A –Wish could be because this special organization had helped to make a dream come true for one her best friends. We were interested in finding out more, so we went along to meet Sophia listen to what she had to say.

    Sophia told us that Make – A –Wish is a worldwide organization that started in the United States in 1980. ” It's a charity(慈善机构)that helps children who have got very serious illnesses. Make – A –Wish help children feel happy even though they are sick, by making their wishes and dreams come true, ” Sophia explained.

We asked Sophia how Make – A –Wish had first started. She said it had all begun with a very sick young boy called Chris, who had been dreaming for a long time of becoming a policeman. Sophia said lots of people had wanted to find a way to make Chris's dream come true —-so, with everybody's help, Chris, only seven years old at the time, had been a “policeman” for a day. ” when people saw how delighted Chris was when his dream came true, they decided to try and help other sick children too , and that was the beginning of Make – A –Wish, ” explained Sophia.

    Sophia also told us the Foundation tries to give children and their families a special, happy time. A Make-A-Wish volunteer visits the families and asks the children what they would wish for if they could have anything in the world. Sophia said the volunteers were important because they were the ones who helped to make the wishes come true. They do this either by providing things that are necessary, or by raising money or helping out in whatever way they can.

Yellowstone Weather

    Yellowstone National Park is at lofty height. Height. Most of the park is above2,275meters.

    Yellowstone's weather is unpredictable. In summer, it may be warm and sunny with temperatures in the high 70s. At night in any given month, the temperature may drop close to freezing. So it is best to come prepared for cold evenings and mornings,especially if you are camping or hiking. When you leave your campsite,please leave it prepared for possible thundershower and wind.

A sunny warm day may become fiercely stormy with wind, rain, sleet and sometimes snow. Without enough clothing, an easy day hike or boat trip can turn into a battle for survival.

    Frank Woolworth was born in Rodman, New York, in 1852. His family were very poor farmers, and there was never enough to eat. Frank decided he did not want to be a farmer. He took a short business course, and went to work as a salesman in a large city.

    Woolworth realized he had a natural skill for showing goods to attract people's interest, but he soon learned something more important. One day his boss told him to sell some odds and ends (小商品) for as much as he could get. Frank put all these things on one table with a sign which said FIVE CENTS EACH. People fought and pushed to buy the things and the table was soon cleared.

    Soon afterwards, Woolworth opened his own store, selling goods at five and ten cents. But he had another lesson to learn before he became successful. That is, if you want to make money by selling low-price goods, you have to buy them in large quantities directly from the factories. Once, for example, Woolworth went to Germany and placed an order for knives. The order was so large that the factory had to keep running 24 hours a day for a whole year. In this way, the price of the knives was cut down by half.

    By 1919, Woolworth had over 1000 stores in the US and Canada, and opened his first store in London. He made many millions and his name became famous throughout the world. He always run his business according to strict rules, of which the most important was: “ THE CUSTOMER IS ALWAYS RIGHT.”

    When Casey Waletich, the director of safety and operations at the Hillsboro School District in Oregon, decided to start a campaign against bullying (欺凌）in his district, he knew he had to get the students on board.

   "We knew that this had to be a student-led effort. The days of having schools do things without the involvement of the students are over，"Mr. Waletich says.

    So he got a group of students together and asked them how they would like to do things. The resulting campaign," Rethink, Redefine, Where Do You Stand?" was launched in October 2014.

    The Hillsboro campaign is just one example of how schools nationwide are increasingly turning to students to develop-anti-bullying movements designed to not just discourage bulling, but also to encourage students to get involved.

    In 2013, some 20 percent of high school students reported experiencing bullying, according to federal data on Stop Bulling gov. The figure jumps to 28 percent when middle school students are included. Some 70 percent of young people say they have witnessed bullying.

    In response to these issues, anti-bullying campaigns in which students have a central role are being conducted across the country. From West Jordan, Utah(where students participated in a three-year character-building program to stop bullying), to Lisbon, Iowa, and Goodrich, Mich, school officials report that their students are taking ownership.

   "This year I've noticed our students are already thinking about what they need to do to make Sunset Ridge an accepting, safe environment." Said Julie Scherzinger, a guidance councilor at Sunset Ridge Middle School in West Jordan." Students come up to me and ask if anyone needs help"

   "There are many reasons why having students at the center is most

important." Says Ron Avi Astor, a professor in social development at the University of Southern California in Los Angeles." Bullying takes place when adults are absent. The kids see and hear more and can go and inform adults when they aren't there to respond immediately"

   "Teaching kids to step up when someone is being bullied teaches them how to be responsible citizens." Ron Avi Astor added.