A new study warns that about thirty percent of the world's people may not have enough water by the year 2025.

    A private American organization called Population Action International did the new study. It says more than 335 million people lack enough water now. The people live in 28 countries. Most of the countries are in Africa or the Middle East.

    P-A-I researcher Robert Engelman says by the year 2025, about 3,000 million people may lack water. At least 18 more countries are expected to have severe water problems. The demand for water keeps increasing. Yet the amount of water on the earth stays the same.

    Mr. Engelman says the population in countries that lack water is growing faster than in other parts of the world. He says population growth in these countries will continue to increase.

    The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking water is not safe. Mr Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.

    The Population Action International study gives several solutions to the water problem. One way, it says, is to find ways to use water for more than one purpose. Another way is to teach people to be careful not to waste water. A third way is to use less water of agriculture.

    The report also says long-term solutions to the water problem must include controls on population growth. It says countries cannot provide clean water unless they slow population growth by limiting the number of children people have.

    For a long time, the traditional method of identifying liars was to watch their body language, including facial expressions.

    What if the person appears to be nervous? Is the person unable to look me in the eye? Is he or she look around the room? What about other nervous movements, such as fidgeting（坐立不安）or shifting from side to side? Many people—from parents to police officers and airport security personnel—depend on this method. But does a person's body and face reveal the truth? Not according to a new study.

    Talking, it seems, is the best way to smoke out a liar. That is what researchers in the United Kingdom found out recently. Their investigation took place at one place where lying can get you into big trouble—an airport.

    The researchers asked volunteers to pretend they were real passengers and then lie to airport security agents. Some of the agents used spoke conversation-based methods to question these make-believe passengers. Others depended instead on the person's body language, like lack of eye contact and showing signs of nervousness. The agents talking with the passengers were 20 times more likely to catch the liars. The study found that these conversation-based techniques can help you recognize when a person is lying to you. Like many methods, this conversation method has a name. It is called Controlled Cognitive Engagement or CCE, for short.

    The British government partly financed this study. The American Psychological (APA) published the findings. Body language cannot be trusted. Using body language and facial expressions to catch someone in a lie is really hard. And it only works, seemingly, by chance.

    Thomas Ormerod is the head of the School of Psychology at the University of Sussex in England. On the APA website, he reported that the “suspicious-signs method”—or using body language—“almost completely fails” in finding lies.

    Camp Bestival is a British music festival. It is held annually, in July, at Lulworth Castle in Dorset and is targeted at families with small children. It can hold 30,000 people. It won the Best New Festival award from the UK Festival Awards in 2008 and the Best Family Festival in 2009, 2010, 2013 and 2014.

Camp Bestival has a variety of activities-and entertainment throughout the festival, including comedy shows, literature programmes, a kids area, workshops and performances.

    Food stalls (摊位) and tents are available all over the festival site.

Camp Bestival 2015 Weekend Ticket Prices:

    Adult Weekend Ticket-£195

    Student Weekend Ticket-£180

    Age 15 to 17 Weekend Ticket-£113

    Age 11 to 14 Weekend Ticket-£88

    Age 5 to 10 Weekend Ticket-£20

    Age 4 & Under Weekend Ticket-FREE

    General Terms and Conditions:

    Weekend Ticket holders (Thursday arrivals): Car parks open at 10 am and the campsites open at midday on Thursday 30th July.

    Weekend Ticket holders (Friday arrivals): Car parks open at 7 am and the campsites open at 9 am on Friday 31st July.

    No entry to the site after midnight (each night). Campsites close at 2 pm on Monday 3rd August.

    You will not be allowed to bring in glass bottles of any kind. Broken glass is very dangerous for kids. Small stoves can be used to cook food but ONLY in allowed cooking areas.

    The Lulworth Castle site is a beautiful natural site and we want to keep it that way, so please help us by keeping it clean—Keep Bestival Tidy!

    It's AOL Jobs Week. We'll have many job listings, so settle in and get your resume ready. And be sure to check out the rest of our Jobs Week content: from resume writing and networking to day jobs and time management to getting a new restaurant off the ground. Lastly, don't forget to enter our sweepstakes (抽奖) for a chance to win a personal session with one of our career experts!

    Customer Service Workers

    Median salary: US$31,547

    Top cities for hiring: Houston, Texas; Chicago, Illinois; Atlanta, Georgia

    We've all dealt with customer service representatives, those disembodied voices (不见其人的说话声) helping you over the phone with various company or purchase - related matters. Love them or hate them, the customer service field is currently blowing up in the United States - big time.

    Warehouse Workers

    Median salary: US$29,357

    Top cities for hiring: Houston, Texas; Chicago, Illinois; Columbus, Ohio

    Without warehouse workers, everything we've ever purchased would still be sitting in a building somewhere. The rise of online shopping sites like Amazon has made warehouses a hot spot for hiring.

    Accountants

    Median salary: US$63,550

    Top cities for hiring: Chicago, Illinois; Houston, Texas; New York

    Death and taxes may be two reasons for the popularity of accounting jobs, which are frequently in high demand. You'll need to become a CPA (Certified Public Accountant 注册会计师) to get started. But while some jobs are at the mercy of the economy, the economy itself isn't going away. Neither are accountants.

    Human Resources Managers

    Median salary: US$99,720

    Top cities for hiring: Chicago, Illinois; Houston, Texas; New York

    Speaking of job security, workers in company's human resources department are always needed to find and assess new hires, along with countless other tasks essential to keeping a company well- peopled. CareeiCast named it one of the ten best jobs of 2016, because it has high income and low stress.

    Katie was in big trouble. She was such a sweet kid; a third­grade teacher always dreamed of having a classroom filled with Katies; she has never had a discipline(纪律) problem. I just couldn't imagine why she had made her parents so angry.

    It seemed that Katie had been running up sizable charges in the lunch room. Her parents explained that Katie brought a great homemade lunch each day, and there was no reason for her to buy school lunch. They assumed a sit­down with Katie would solve the problem, but failed. So they asked me to help them get to the bottom of this situation.

So the next day, I asked Katie to my office."Why are you charging lunches, Katie? What happened to your homemade lunch？" I asked. "I lose it，" she responded. I leaned back in my chair and said, "I don't believe you, Katie." She didn't care." Is someone stealing your lunch, Katie？" I took a new track. "No. I just lose it." she said. Well, there was nothing else I could do.

The problem was still unsolved the next week when I noticed a boy who was new to the school sitting alone at a lunch table. He always looked sad. I thought I would go and sit with him for a while. As I walked towards him, I noticed the lunch bag on the table. The name on the bag said " Katie " .

    Now I understood and I talked to Katie. It seemed that the new boy never brought a lunch, and he wouldn't go to the lunch line for a free lunch. He had told Katie his secret and asked her not to tell anyone that his parents wanted him to get a free lunch at school. Katie asked me not to tell her parents, but I drove to her house that evening after I was sure that she was in bed. I had never seen parents so proud of their child. Katie didn't care that her parents and teacher were disappointed in her. But she cared about a little boy who was hungry and scared.

    Katie still buys lunch every day at school. And every day, as she heads out of the door, her mom hands her a delicious homemade lunch.

Maths and Music

    An excellent way to kill a conversation is to say you are a mathematician. Tell others you are also a musician, however, and they will be hooked. Although there are obvious similarities between mathematical and musical activity, there is no direct evidence for the kind of magical connection many people seem to believe in.

    I'm partly referring here to the "Mozart effect", where children who have been played Mozart compositions are supposedly more intelligent, including at maths, than other children. It is not hard to see why such a theory would be popular: we would all like to become better at maths without putting in any effort. But the conclusions of the experiment that expressed the belief in the Mozart effect were much more modest. If you want your brain to work better, you clearly have to put in hard work. As for learning to play the piano, it also takes effort.

    Surely a connection is quite reasonable. Both maths and music deal with abstract structures, so if you become good at one, then it is likely that you become good at something more general that helps you with the other. If this is correct, it would show a connection between mathematical and musical ability. It would be more like the connection between abilities at football and tennis. To become better at one, you need to improve your fitness and coordination (协调). That makes you better at sport and probably helps with the other.

    Abstract structures don't exist only in maths and music. If you learn a language then you need to understand its abstract structures like grammar. Yet we don't hear people asking about a connection between mathematical and linguistic (语言的) ability. Maybe this is because grammar feels mathematical, so it wouldn't be surprising that mathematicians were better at learning grammar. Music, however, is strongly tied up with feelings and can be enjoyed even by people who know little about it. As such, it seems different from maths, so there wouldn't be any connection between the two.

    Let's see how we solve problems of the "A is to B as C is to D" kind. These appear in intelligence tests but they are also central to both music and maths. Consider the opening of Mozart's Eine Kleine Nachtmusik (小夜曲). The second phrase is a clear answer to the first. The listener thinks: "The first phrase goes upward and uses the notes of a G major chord (和弦); what would be the corresponding phrase that goes downward and uses the notes of a D7?" Music is full of puzzles like this. If you are good at them, expectations will constantly be set up in your mind. The best moments surprise you by being unexpected, but we need the expectations in the first place.