If you had a strange sound in your ear, what would you do? One man in Wales who thought he had a fly in his ear called 999, the emergency services number in Britain. And so did a woman who was worried about her green potatoes. Could she make chips with them? Were they poisonous? She didn't hesitate about calling the local ambulance service to ask. According to a recent report, more than 31,000 non-urgent calls were made to the Welsh Ambulance Service in the last year.

    Inappropriate calls are a headache for health professionals everywhere. In the US, prank calls to 911 happen on a daily basis. Many callers use apps which hide their identity. But those who try to be funny shouldn't be surprised if the police have the last laugh. One man from Colorado was arrested for making more than 1,200 prank calls, according to a report on the US television station KOAA—TV.

    People who take these calls are trained to stay calm and keep a straight face, no matter how strange the call sounds. “There's no way for us to know whether the call is real, accidental or a prank call,” said a public safety worker interviewed by the American TV channel.

    The Head of Clinical Services at the Welsh Ambulance Service, Richard Lee, has a warning for prank callers. He says:“ When people misuse the service it means our precious time is being taken away from someone who really does need our help.” Indeed, these hotlines are supposed to help the seriously ill or those with a life-threatening injury. You never know, one day, the person who needs assistance could be you or someone in your family.

    Many studies have shown that the company of pets can help lower blood pressure and raise chances of recovering from a heart attack, reduce loneliness and help control body weight.

    Any pet owner will tell you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress levels and blood pressure in people (half of them were pet owners) while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. People completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems that people feel more relaxed around pets, says Allen, who thinks it may be because pets don't judge.

    A study reported last fall suggests that having a pet dog may also have an effect on your body weight. Researchers at Northwestern Memorial Hospital spent a year studying two groups of fat people who were put on a diet-and-exercise program: one group with pet dogs, and the other without. On average，dog owners lost about 11 pounds，or 5% of their body weight; While those without dogs lost about 8 pounds. The pet owners, said researchers, got more exercise overall (mostly with their dogs) and found it worth doing.

    Car companies are developing vehicles that will plug into electric sockets, ust like many laptops, digital cameras, cell phones and Mp4 do. Called “plug-in vehicles”, these cars will get most of their power from electricity. Their drivers won't have to stop at gas stations as often as usual.

    The technology is more than just cool. In our car-filled world, plug-in vehicles could reduce the amount of gas we use, which keeps rising in cost now and then. Besides, driving around in these vehicles may even help the environment. Gas-burning cars produce a lot of greenhouse gas, which causes global warming.

    The first company-produced plug-in vehicles could hit the roads by 2020. But engineers still have a lot of work to do to make the technology practical and inexpensive.

    Batteries are the biggest challenge. In the plug-in-vehicle world，Li-ion(锂离子)batteries are getting the most attention. These batteries can store a large amount of energy in a small package, and they last a longer time between charges. Li-ion batteries can fit laptops, cell phones, heart instruments and other similar pocket ones.

    But because cars are so big and heavy, it would still require a suitcase-sized Li-ion batteries to power about 12km of driving. What's more, the batteries are much expensive.

    “A car filled with batteries could go a long distance,” says Ted Bohn, an electrical engineer in Chicago. “But it couldn't pull any people, and it would cost $100,000.” So researchers need to work out how to make batteries smaller and cheaper, among other questions.

    “The answers don't exist yet,” Bohn says, “As a kid, I thought someone someplace knows the answer to everything. All of these questions haven't been decided. That's what engineering is about-making a guess, running tests and getting fine results.”

    Many English learners have difficulty deciding what kind of English accent they want to have. A US accent, perhaps imitates(模仿) a Hollywood star speaker? Or maybe you want to imitate the British accent of a BBC news reader?

    Young British people find the US accent attractive while young US people like a British accent. Especially when the person speaking is of the opposite sex(异性)! Let's listen to what they have to say.

    Stephen Yang, 17, from London, UK

    A US accent is cute, especially when a girl speaks it. Whether it's Jessia Alba speaking or the girl-next-door, the way US girls speak has a sweet tingle(感觉) that is really fashionable. A girl from Texas recently moved into our neighborhood. Her Texan twang(鼻音) had all the boys here on their knees within seconds of meeting her.

    To me, accents reflect the attitudes, characteristics(特征) and lifestyles of the people.

    Jennifer Sun, 16, from New Jersey, US

    From watching English actors like Daniel Radcliffe, my friends and I have developed a soft spot(好感) for British men. Some are attracted to the qualities of English males, while others admire their sense of style.

    Everyone, however, agrees that the most appealing aspect of an English man is his accent. For example, many American girls watch Harry Potter movies over and over again just to listen to the actors speak.

    The English accent seems almost like art.

    Today's post is almost about signs in English. You will see signs on the road while driving or when walking down a street. Now let's take a closer look at the signs in the picture below, so you can fully understand what they mean in case you come across one of them.

    Starting with the top row, we have a:

    Yield sign—This sign indicates (标示) that you need to slow down ,but you may not have to come to a full stop.

    Crosswalk—This is a sign that indicates people have the right of way to cross the street, so cars have to stop when they see a person waiting next to one of these signs.

    Second row:

    Do not enter—This sign indicates you are not allowed to enter a road at that point.

    Buckle up(系好安全带)!— There are often signs on roads in the United States reminding people that wearing seat belts(安全带) is mandatory (强制的) (seat belt laws differ depending on what state you are in ,but all US states have seat belt laws).

    Third row:

    Be alert (警惕的) for bears—This is another sign that is used to indicate to drivers and pedestrians (行人) that they should be alert for wildlife in the area.

Playground—This is the sign used to alert drivers that there is a playground nearby, so it is a good idea to slow down and watch for children.

    Every year in America, high-school students who want to go to college take a national examination called the Scholastic Aptitude Test, or SAT in a shortened way. Their score is an important factor in determining which colleges will admit them or whether any will be admitted at all. The Scholastic Aptitude Test measures one's mathematical ability and use of the English language. Traditionally, the English portion (部分) involved grammatical questions and paragraphs that test reading comprehension.

    But the SAT folks have added a single question, to be answered in an essay, hand-written on the spot. That's an interesting way to test writing ability, put content aside, have you ever seen young people's handwriting lately? Or anyone's for that matter, in this age of computer keyboards? Students write numbers and sign their names on bank checks.

    They scribble class notes in what can generously be described as the written word. And they hand-write, or more often print, a word or two of identification on luggage and lunch bags. Otherwise penmanship (书法) - once taught so morally and easefully by second-grade teachers, has gone the way of the dodo bird which has died out.

    Yet today's kids are asked to write, thoughtfully and legibly (字迹清楚地),for several minutes on this SAT Test. Good luck to the text scorers who must work out difficultly the scrawl of young people who've been typing on computers since the age of three! Teachers insist that good handwriting can not only help one's score on the SAT, but also, later on in life, impress potential employers and earn bigger tax refunds (退税) because the tax inspectors can actually read the computations (计算结果). And don't forget, we all have to turn to handwriting from time to time, as computers go down when power goes out.

    Then how to improve the handwriting? Well, with a few simple steps you can improve your handwriting.

    PositiQn the pen. You should hold the pen between the forefinger and the thumb, then rest it near the first knuckle(指节)of the middle finger. The rest of your fingers should be curled(卷曲)under your hand and your hand should remain relaxed.

    Evaluate your writing. Make changes to your letters till you like how they look. Take your time. Speed is bound to make your writing messy-looking.

    Practice. Practice it a lot; it's not enough to do it once and hope for the best. It has to be something you work at to make great improvements.