On a snowy and windy afternoon, Ann, a ten-year-old girl, went out to play. She was walking along the sands when she was blown into a ditch (壕沟) by the seashore. She was frightened and tried her best to climb out. But the ditch was too deep and she was too weak to get out of it. So Ann cried at the top of her voice for help. But what she could hear over the snow ditch was nothing but the terrible noise of the wind. Nobody came to her and nobody knew where she was. She struggled again and again. Her face was struck by the strong wind, snow and sand, and was almost frozen. Her hands were stiff. She also felt that she was worn out. She started to cry hopelessly. Just at the moment Ann saw a black dog appearing through the heavy snow. It was Victor, her true friend. He was glad to see the sign of life. And the dog set out to work as soon as he got to Ann. He cleaned away the snow around her with his own paws and hind legs, and then reached out his big strong fur head to Ann. The little girl closed her arms round Victor's neck. The dog backed away slowly, pulling her out of the ditch little by little.

    Successfully, Ann got out of the ditch at last. Then she struggled to her feet. With great difficulty, led by her true friend Victor, she was rescued. Victor, the black dog, was given a gold medal and was honoured as Brave Hero Dog of America.

    Donald Trump has been known to do it in the middle of the night. Kim Kardashian has done it more than 22,000 times. Many people don't understand why you would want to do it at all.

    We're talking about tweeting and, unlike posting your entire life on Facebook, this social media activity demands a particular set of skills.

    Why use Twitter? It's a way to have a one-on-one virtual connection with your heroes and anybody who interests you. Likewise, you can share your life and views with an almost limitless number of people. And it all has to be done within the limit of 140 characters of text – plus photos, videos and links – which really helps you focus your mind.

    Katy Perry has the most Twitter followers, with 95.6 million of the micro-blogging site's 317 million monthly active users. Justin Bieber isn't far behind with 91.5 million, followed by Barack Obama and Taylor Swift with around 83 million each. The heaviest hitters of Twitter are pop stars, heroes of sport and other celebrities. But you don't need to be famous to create a buzz with the right tweets at the right time.

    In fact, Katy Perry is a great example of how to do it well. She has a bubbly tweeting style that mashes up chat about her tours and her music, insights into her emotional roller coaster over the US election, and playful descriptions about her daily life. "Done with my Christmas shopping", she tweeted, and posted a link to her Instagram page that featured crazy gadgets like a "pet emergency jacket" and a "chocolate donut camera".

    To get started on Twitter, pick a simple, memorable user name like @KatyPerry, post a short profile and choose a photo. Some tips: post your own photo (not a photo of your dog, it's not Facebook) and don't be an "egg person" – referring to the absent egg-shaped image when a user hasn't posted their own picture. In that case, Twitter won't get you any followers or respect.

    Then, it's time to start tweeting by sending your updates ("what's happening?") and following people. Building up an army of followers can take time. Generally, the more people you follow and the more you tweet, the more followers you'll get. To become a Twitter star, you need to carve out a reputation for posting original, eye-catching tweets on trending topics – and maximise your visibility by mastering the use of hashtags.

    Twitter Analytics will show you how your tweets are performing and who is following you – right down to their age category, country, income bracket, gender and interests. If your popularity is flagging and your Twitter ego is keeping you awake at night, you can turn to the business of buying thousands of "followers" from online sites. But do be ware – there may be a lot of fake profiles in there and, at the end of the day, it'll feel like paying a crowd of people you don't know to come to your birthday party.

    Happy tweeting!

    Almost everyone wants to be happy, but not all know how to find happiness. Money and success alone do not bring lasting happiness. Aristotle, a Greek thinker, said, “Happiness depends upon ourselves.” In other words, we make our own happiness. Here are a few suggestions to help you be happier.

    The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time thinking about the future that we fail to enjoy the present, for example, getting into college or getting a good job. You should enjoy life's simple pleasures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have several close friends often live happier and healthier lives.

    Another secret to living a happy life is to be active, and have hobbies where you forget your problems and time. Many people experience dancing, or playing a sport, such as swimming. You can forget about your problems and only think about the activity.

    Finally, many people find happiness in helping others. Studies show that people feel good when they spend their time helping others. If you want to feel happier, do good things for someone. You can help a friend with his or her studies, go shopping to buy food for an elderly person, or simply help out around the house by washing the dishes.

    “Belittle” was first used by Thomas Jefferson, the third president of the United States.

    Many years ago, Buffon, a French naturalist, wrote some books about natural history. The books were a great success even though some critics did not like them. Some critics said, “Buffon is more of a poet than a scientist.”

    Thomas Jefferson did not like what Buffon had said about the natural wonders of the New World. It seemed to Jefferson that Buffon had spoken of natural wonders in America as if they were unimportant.

    This troubled Thomas Jefferson. He was a naturalist, as well as a farmer, inventor, historian, writer and politician. He had seen the natural wonders of Europe. To him, they were no more important than those of the New World.

    In 1788, Thomas Jefferson wrote about his home state, Virginia. While writing, he thought of its natural beauty and then of the words of Buffon. At that moment, Jefferson created a new word－belittle. He said, “Buffon believes that nature belittles her productions on this side of the Atlantic.”

    Noah Webster, the American word expert, liked this word. He put it in his English language dictionary in 1806, “Belittle－to make somebody or something small, unimportant.”

    Americans had already accepted Jefferson's word and started to use it. In 1797, the Independent Chronicle newspaper used the word to describe a politician the paper supported. “He is an honorable man,” the paper wrote, “so let the opposition try to belittle him as much as they please.

    In 1872, a famous American word expert decided that the time had come to kill this word. He said, “'Belittle' has no chance of becoming English. And as more critical writers of America, like those of Britain, feel no need of it, the sooner it is forgotten, the better.” This expert failed to kill the word. Today, “belittle” is used where the English language is spoken.

    Many of us live with a roommate at some stage. Sometimes, there can be problems. Who hasn't had an argument about whose turn it is to take out the rubbish or who should be the one to clear up after dinner? However, living with another person also comes with many benefits.

    You know that there's always someone else around, which can help you feel safer. There is always someone to talk to, so you never feel lonely. Besides these obvious benefits, there are some you may not notice. For example, we're actually more likely to eat healthier food when living with others.

    To examine the effect of living alone, Australian university researchers did much research and found that people living alone tended to eat less fresh food, which can have a significant negative effect on long-term health. However, those living with others generally benefited from a more varied diet compared to those living alone.

    What could explain these findings? The researchers believe the social and cultural roles played by cooking, food preparation and eating may be important considerations. For example, those living with friends have someone else to go shopping with, and thus are likely to buy higher-quality fresh food regularly.

    Cooking skills may be another factor. If people living alone find they do not have the knowledge required to prepare a particular dish or cook a certain food, they may fall back on ready-made, less healthy food. However, if they live with at least one other person, they may be able to ask for help.

    In addition, people living alone can eat whatever they want at any time of the day or night. However, it's helpful to have someone around who questions your decision to eat frozen pizza at 3 am. In other words, roommates can draw your attention to unhealthy routines.

    So, if you now live alone and find yourself fighting a losing battle against poor eating habits, why not consider sharing a home with someone else? You could encourage one another on to greater health and well-being.

    A year back I received a full scholarship (奖学金) to attend the University of San Francisco. All of my hard work paid off. My mom had spent a lot on my attending a private high school, so I made sure to push myself: I volunteered, took part in various clubs, and graduated with honors. I was so excited to start a new part of my life.

    Soon enough, the big day came, but it wasn't like what I had thought. The first two weeks were the most difficult days of my entire life. Every night I would cry myself to sleep. I was missing my family, my home and everything in my hometown so much and I didn't know how to deal with my broken heart.

    To distract myself, I threw myself into my studies. I also found a ton of jobs. In any free time, I started forcing myself to go to the gym. I wanted to keep every part of my day busy so I wouldn't think about how lonely I felt. Soon after, I began to control my eating, considering it another solution to my homesickness(想家). But soon there was something wrong with me.

    Finally, I went to see a doctor. When the doctor told me I had no choice but to take time away from school, I started to fear. How could I stop? School was what I was best at. "I'm not so bad," I thought in my head. But the result was that I was taken to hospital again a month later and my mother came heartbrokenly. I had to take a semester off from school, and go to the treatment center near my home.

    If there are girls who are suffering similarly, I hope you know that there is hope and that you should have a positive attitude towards life. Though you may feel alone, there are so many people who can understand your struggle. That's why I want to share my story.