There are many places to go on safari（观赏野生动物）in Africa, but riding a horse through the flooded waters of Botswana's Okavango Delta must rank as one of the world's most exciting wildlife journeys.

    Several safari camps operate as the base for this adventure, providing unique rides twice a day to explore deep into the delta. The camps have excellent horses, professional guides and lots of support workers. They have a reputation for providing a great riding experience.

    The morning ride, when the guides take you to beautiful, shallow lakes full of water lilies, tends to be more active. It is unlike any other riding experience. With rainbows forming in the splashing water around you and the sound of huge drops of water bouncing off your body and face. It is truly exciting. You are very likely to come across large wild animals, too. On horseback it is possible to get quite close to elephants, giraffes and many other animals. The sense of excitement and tension levels rise suddenly though, as does your heart rate, as you move closer to them.

    In the evening, rides are usually at a more relaxed and unhurried pace. With golden light streaming across the grassy delta and the animals coming out to eat and drink____though they are, rides at this time of day are still very impressive. As the sun's rays pass through the dust kicked up by the horses, the romance of Africa comes to life.

    Back at the camp you can kick off your boots and enjoy excellent food and wine. Looking back on your day, you will find it hard to deny that a horseback Safari is as close as you will ever come to answering the call of the wild.

    Whenever we see a button, we are eager to press it because we know something will happen. This is true in most cases, for example on a doorbell and on the "on/off" button on the TV. But some buttons are actually fake, like the "close" button on a lift.

    Many people are in the habit of pressing the "close" button because they don't have the patience to wait for the lift doors to shut. But lifts' "close" buttons are a complete scam (骗局), at least in the US-the doors will not close any faster no matter how hard you press.

    It started in the 1990s when the Americans with Disabilities Act was passed in the US, making sure that all lifts stayed open long enough so that people with disabilities could enter. Only US firefighters and repairmen can use the buttons to speed up the door-closing process if they have a code or special keys.

    But to normal lift 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.

    "Perceived (能够感知的) control is very important. It reduces stress and increases well-being," Ellen J. Langer, a psychology professor, said, "having a lack of control is associated with depression（沮丧）."

    Experts have revealed that a lot of buttons that don't do anything exist in our lives for this same purpose. For example, many offices in the US have fake thermostats (温度调节器) because people tend to feel better when they think they can control the temperature in their workplace.

    Pedestrian(行人) crosswalk buttons don't live up to their names either. 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, said. "Even though I have real doubts about the traffic light buttons, I always press them. After all, I've got nothing else to do while waiting. So why not press the button in the hope that this one will work?"

    Electric Shock

    Injuries caused by electric shock are fairly common. When a person has received an electric shock, no one should go near him/her until the current has been turned off.

    If a shock occurring at work or at home causes someone to lose consciousness（知觉）, electrical connection must be broken before anyone tries to give assistance. You should either turn off the switch at the mains or, if that is not possible, push the person away with a dry piece of wood.

    Treatment of Shock

    Look out for signs of shock. People who have been injured or who may have lost a lot of blood, or those who have had heart attacks, may be in deep shock. The signs to look for are faintness, paleness, a moist, sticky skin, shallow, rapid breathing and a fast but weak heartbeat.

    Shock can prove fatal, and it is essential to do something to prevent its developing. The best way to treat or prevent shock is to keep the patient lying down , better with the legs higher than the head; if possible, raise the lower part of the body on a rolled-up packet or similar object. Make the patient as comfortable as possible, loosening any tight clothing, and comfort him/her because fright increases the effects of shock.

    Copenhagen Destination Guide

    The modern city of Copenhagen combines the best of European cafe culture and Scandinavian architecture. It's charming and compact with lots of local history to dive into. Although spending time in Copenhagen can become expensive, there are many ways to experience the city on a budget as well.

    Attractions

    Copenhagen is one of the world's best cycling cities. To see the city with ease, rent a bike or take a small group tour to see the sights, including the Little Mermaid, the island of Amager and the community of Christiania. You can also take a canal boat tour to see the city from a unique view. The Tivoli Gardens offer a sense of love in the evenings. There are some excellent museums to explore. Be sure to add the Museum of Art and Design to your travel plan.

    Transportation

    Kastrup Airport is the first destination for most visitors. It typically takes less than 15 minutes to get from the airport to the city center by train, so all the visitors prefer this way to travel between the two places. Canal boat tours are the easiest way to see the city's attractions. Cycling is the fastest and most flexible way to get around, and it's a refreshingly pedestrian-friendly city as well.

    Tips

    Find local sandwich shops to eat like the locals do and give your wallet a break.

    Museum lovers should have a Copenhagen Card, which provides free entrance to about 60 museums and many other attractions too.

    Consider visiting Copenhagen in the autumn, when it's a little cold but accommodations become much cheaper than those in the summer.

    Check at www.Save70.com to view price comparisons for flights and hotels before you book.

    Finding a friend doesn't seem like a difficult job. However, bad friends are easier to find than good friends these days. If you're sitting there and wondering if you have a bad friend, let me define it for you.

    A bad friend is someone whose jealousies and insecurities outweigh their love for someone. They might want to be a good friend but they're too messed up in their own head to ever actually do it. They wonder if their friends are going out without them or if they're being forgotten and left behind. People who are violently insecure don't have what it takes to be the quality of a friend.

    Bad friends are narcissistic(自恋的). They look for any opportunity to bring the conversation back to them. Worse, they might not even be aware that they're doing it. In their mind, they might think they are the best friend ever, which is truly frightening.

    Bad friends are quick-change. They're by your side when you're fun and you have something to give them but as soon as you're going through a difficult time, they will become indifferent quickly. They won't bring you cold medicine. They won't give you a ride to the doctor, everything they do is self-serving.

    If you find a friend who has these same characteristics, send them to your bad friend list immediately. Your friends are supposed to be the solution to your problems, not the source.

    I believe your twenties are a time when you need positive and helpful friends. In such a time, friendships aren't easy to maintain like they once were in school. Now we actually have to put work into it, we have to make a conscious effort to keep the friendship going. You need to ask yourself, "Is this person worth it? Do they treat me like a fool or what?" if you have doubts, try to make them clear by considering the past experiences. Toxic(有毒的) friendships do nothing but drag you down. My point is that you have to take care of yourself and stop getting in touch with your bad friends. Only surround yourself with people who bring out the best qualities in you. It may sound cruel but it's true.

    When Boris left school, he could not find a job. He tried hard and he wrote letters to many companies until he could not afford to buy any more stamps. Boris began to lose his confidence, then depressed. Still he went on trying and still he failed. He began to think that he had no future at all.

    "Why don't you start your own business?" one of his uncles told him. "The world is a money­locker. You'd better find a way of opening it."

    "But what can I do?"

    "Get out and have a look round." advised his uncle. "See what people want; then give it to them, and they will pay for it."

    Boris began to cycle around the town and found a suitable piece of waste ground in the end. Then he set up his business as a cycle repairer. He worked hard, made friends with his customers and gradually managed to win his good fame. A few months later, he found that he had more work than he could deal with by himself. He found a number of empty shops but they were all no good: in the wrong position, too expensive or with some other problems. But at long last, he managed to find an empty shop in a new place where there were plenty of customers but no competition.

    Boris and his assistant taught themselves how to repair motor­cycles. Slowly but surely the profits increased and the business developed. At last, Boris had managed to open the money­locker and found bank notes and gold coins inside.