Fort Scott High School English teacher Emily Rountree has been working this semester to raise money for Charity Water, a nonprofit organization that uses 100 percent public donations to help fund water projects in places without access to clean drinking water. Her goal was to motivate her students to use their writing in class to make a real-world difference. Twelve students got top grades for the project, and their articles will be published both in The Tribune and online. Here is one example:

    Did you know that there are many countries around the world that dont have access to safe drinking water? Just think: that could be you, or someone in your family. My name is Tanner Johnson, and I attend Fort Scott High School. In my English classes, we are trying to raise money for Charity Water. Charity Water is an organization that helps people get water in countries where there is no safe drinking water.

    In developing countries, 780 million people dont have access to clean drinking water. In Africa alone, people spend 40 billion hours every year just walking to get water. Women and children are the ones that mainly do the walking. They could be attacked or get hurt while they travel to get water. When they do get home, the water that they have brought is unsafe water from swamps, ponds, or rivers. If they had safe drinking water, they wouldnt have to worry about these problems, and they wouldnt be wasting hours of their day. Unsafe drinking water causes many different kinds of diseases that could lead to death.

    You could help save someones life, by donating $20 so we can help get them some safe drinking water. You can easily donate online at mycharitywater.org/fshsenglish, or you can send a check to Emily Rountree, payable to Fort Scott High School. If we dont help these people, then who will?

    You're out to dinner. The food is delicious and the service is fine. You decide to leave a big fat tip. Why? The answer may not be as simple as you think.

    Tipping, psychologists have found, is not just about service. Instead, studies have shown that tipping can be affected by psychological reactions to a series of different factors from the waiter's choice of words, to how they carry themselves while taking orders, to the bill's total. Even how much waiters remind customers of themselves can determine how much change they pocket by the end of the night.

    “Studies before have shown that mimicry(模仿) brings into positive feelings for the mimicker,” wrote Rick van Baaren, a social psychology professor. “These studies show that people who are being mimicked become more generous toward the person who mimics them.”

    So Rick van Baaren divided 59 waiters into two groups. He requested that half serve with a phrase such as. “ Coming up !” Those in the other hall were instructed to repeat the orders and preferences back to the customers. Rick van Baaren then compared their take-home pay. 'The results were clear—it pays to mimic your customer. The copycat(模仿者) waiters earned almost double the amount of tips to the other group.

    Leonard Green and Joel Myerson, psychologists at Washington University in St. Louis, found the generosity of a tipper maybe limited by his bill. After research on the 1,000 tips left for waiters, cabdrivers, hair stylists, they found tip percentages in these three areas dropped as customers' bills went up. In fact, tip percentages appear to plateau(稳定期) when bills topped $100 and a bill for $200 made the worker gain no bigger percentage tip than a bill for $100.

    “That's also a point of tipping,” Green says. “You have to give a little extra to the cabdriver for being there to pick you up and something to the waiter for being there to serve you. If they weren't there, you'd never get any service. So part of the idea of a tip is for just being there.”

    Chinese consumers' crazy appetite for luxury goods and services appears unstoppable,with just 2 percent of the Chinese population responsible for one-third of the world's luxury items.

    As China's economic miracle develops,the market opportunities for all sorts of luxury goods and services are increasing.Luxury consumption in China now extends ways beyond well-known car,clothing and jewelry brands.For example,the luxury jet market in China is the fastest-growing in the world,even outstripping that of the United States, with a market share of 25 percent.This trend appears to continue,with 20 to 30 percent growth expected in China, compared with only 2 to 3 percent in the US.But more importantly,China's luxury jet market growth represents a major development in the private consumption of luxury items.

    China's high-quality red wine market also provides evidence of the growth in private consumption of luxury goods.In 2013,China became the largest market for red wine in the world,even overtaking France,with l.86 billion bottles consumed in China last year.Over the past five years,China's red wine consumption has grown 136 percent.

    According to my ongoing consumer research in this area while working at the University of International Business and Economics in Beijing,public consumption of such expensive global luxury brands such as Prada and Armani is easily explained by the desire to "gain face" and publicly display social climbing through material possessions.On the other hand,it is "self-reward" that lies behind consumer motivation in this area.Chinese consumers who have experienced rapid financial and economic gains appear particularly prone to the need to reward themselves for their success.But this has little to do with "gaining face" and impressing others and much more to do with the need for personal contentment.

    Finally,the growth in private luxury consumption in China is set to continue in part due to the maturity of the Chinese consumer and advancement of Chinese consumer culture generally.

How to Prevent Dehydration

    When the weather's warm, you need to make sure you drink enough water. But did you know that you lose your sense of thirst as you get older? This means you5re more likely to become dehydrated, making you more prone to (有倾向) falls, heart disease, urinary-tract infections, kidney stones and confusion. A study from Loughborough University in the UK has shown that drivers who had only a little water an hour made twice as many mistakes as motorists who were properly hydrated. In fact, they made a similar number of errors to what you'd expect from someone over the drink-drive limit.

    So how do you know when you're dehydrated? Warning signs include:

    Feeling tired

    Dry mouth and dry skin

    Dark urine

    Reduced appetite (食欲)

    Reduced concentration

    Headache

    Constipation.

    But you might not notice any symptoms (症状)at all，so to make sure you stay hydrated:

    Keep a glass of water by your side when you're at home, and drink it regularly.

    Form a new drinking habit—for example, when watching TV, always reach for the water glass during an ad break.

    Take a small bottle of water with you when you go out.

    Always drink a large glass of water with a meal.

    Eat fruit and vegetables with high water content.

    Draw up a weekly water card—a bit like a coffee loyalty card—with a target of eight glasses of water a day. Mark it every time you have a glass of water. Award yourself a prize when ifs full at the end of the week.

    Drink water before, during and after you take any exercise.

    As a senior high school student, my future is always on my mind. To be exact, thoughts of the future have kept me up countless nights and made me worry enough to do poorly on more than one test. Because of this, words of wisdom are a source of comfort. Steve Jobs gave a speech to Stanford's graduating class in 2005 and his words resound repeatedly in my mind whenever I think about my future.

    It wasn't always like that, though. It started when I became a junior, when college came into view. It's the first big step to making your life your own. So when Jobs discussed his life as a student, some fears were eased. He, too, felt the need to attend college to make something of himself. He faced what many are extremely afraid of: uncertainty. His lack of understanding caused him to stop attending college and focus on what he felt was important. His story had a happy ending, of course, since he certainly turned out well.

    This doesn't mean that students shouldn't attend college, but rather that they shouldn't worry so much. You'll get where you need to go, even if your path is a bit more winding(蜿蜒的)than you'd like.

    Jobs talked about the hardships in his work. His love of his work helped him carry on and he got where he was meant to be, which restates the point: don't panic.

    One particular part of his speech stayed with me. Steve Jobs quoted(引用)the saying "Stay hungry, stay foolish" and it has become my motto. Staying foolish is realizing that you are still a fool, no matter how much you've learned or experienced. There is always more to explore. Staying hungry is wanting to find those things about which you are still uneducated.

    Steve Jobs's level of success is attainable, and I aim to prove that. With the will power to go into the world living every day like it's my last and allowing the future to take care of itself, I will do great things. In the last moments of my life, I'll be proud of what I have done and hope to have all the wisdom a person could wish for.

At Englands University of Plymouth, Professor Eduardo Miranda has been programming pairs of robots to compose music. Miranda's robots have simple " vocal cords" (声带)and are programmed to sing and to listen to each other. The robots' unique warbling sounds (颤音) do not perfectly match the human voice, but each machine is exactly sharing music with the other in a new and unique way.

Each robot is equipped with speakers, software that mimics the human voice, a mouth that opens as it "sings," a microphone for ears, and a camera for eyes. The robots also move. Miranda hopes that by studying his robot vocalists, he can discover something about how and why humans create, perform, and listen to music.

When the robots sing, first one robot makes six random sounds. Its partner responds with more sounds. The first robot analyzes the sounds to see if their sequences (序列)) are similar. If they are, it nods its head and commits the sounds to memory, and the second robot notices and "memorizes" the musical sequence, too. If the first robot thinks the sounds are too different, it shakes its head and both robots ignore the sounds. Then the process continues.

Miranda set up an experiment in which he left the two robots alone in his study for two weeks. When he returned, his little warblers had, by imitating each other, not only shared notes but combined them. The product of their cooperation was far from symphonic, but the robots had begun to combine the notes into their own self-developed "songs".

With the help of his warbling robots, one of Miranda's goals is to create music that no human would ever compose. Miranda believes the robots are ideal for this purpose because they would not be influenced by any existing musical styles or rules.