A student walks into his first class and realizes he forgot all about the midterm exam. He knows he needs to bring his grades up, and getting a zero will make it nearly impossible. He quickly jots down some notes and shoves them under his lap hoping it will help him pass. Cheating is a major concern in all academic environments. Students are creating new and more outrageous(令人吃惊的）ways of cheating every day: some claim that certain accounts of cheating can be justified, but overall it can always be prevented.

    Cheating has been around forever, and millions of ways to cheat have been fashioned. Copying homework and cheat sheets are some of the most basic ways students in all education levels have cheated. Some students think nothing about writing a few answers on their hand, in a gum wrapper, or boldly using a study guide to cheat. Desperate students have even gone as far as to steal the test or scan in bottle wrappers and put answers into the nutrition label. The internet has now become available in almost every location. Computers can be accessed at school, at home, and now even on cell phones. This opens a doorway for even more methods of cheating to be born.

    There are countless opinions on whether or not cheating can be justified. The truth is this behavior will always be a matter of opinion with each scenario of cheating. Students often rationalize their cheating by claiming they forgot to look over the material or did not understand what the teacher or professor was saying. Some may counter these arguments by saying that the student could have set reminders or asked the teacher to explain the material before the day of the test. Some other reasons students believe cheating is justified are their heavy workloads and trying to find time for school, sports, friends, and family. This may be true in certain instances, however, all students have these problems, and it is unfair to the students refrain(制止) from cheating when the student who is dishonest receives a better grade. The majority of students who think cheating is acceptable may believe the reason for this is that sometimes students are unaware they are cheating, there is not enough time given for assignments, or that the information is too much for the course.

    It may be difficult to accomplish, hut cheating can be prevented. 1'eachers and professors have tried many options to stop cheating. These options can range anywhere from simply spreading test-takers out in a room, to expelling（驱逐）a student, which will most likely hinder their plans of getting into another college. One simple way to fix the problem is to scold the student when caught. They may be so scared or embarrassed that they never do it again. This is a risky way to prevent cheating in some cases, however, because it can possibly damage self-esteem. Another simple way 10 avoid cheating is to create many different kinds of the same test. This prohibits students from getting the answers off of a neighbor's test, but students still have the option of using other cheating tactics.

    There may be a million ways to cheat and get away with it, but there are few times, if any, that it is justified. Cheating never has to be a necessity and is never worth compromising morals and losing years worth of working towards a degree. This problem is spreading throughout America; with everyone's help, it can be stopped.

    By May, after three months, I had lost22pounds and reached my goal of 115 pounds. My friends would say “Alice, you look great!” or “How did you lose so much weight?” Those compliments made me feel good and confident.

    Soon I dropped to110 pounds. A few of my friends told me that I needed to stop dieting, because I was starting to look sick. They brought me a present—— a bag of chocolates, which I later gave to my sister. My mother would come to my room, with tears in her eyes, and have long chats about how harmful this diet was and begged me to stop. My dad would leave worried messages on my cell phone at school, telling me that it would do serious harm to my body.

    By mid-June, when school was coming to an end, I was down to an only alive state of 95 pounds. All of a sudden, I knew I had to do something. I guessed the number itself scared me. I recalled my doctor. He told me about a girl who was 95 pounds and was at the risk of dying. I knew I was putting my life at risk, but for what? To make those who love me worried? Was it worthwhile to be thin?

    Now I realize that models in magazines, TV and movies are not realistic. The price to pay for the “perfect body” is living with a dangerous and sometimes deadly eating disorder. And there are more important things to think about than how thin you are.

    What would work be like if you had no boss?Imagine you could make all your own decisions and no one told you what to do.

    A Swedish software company,Crisp,decided to get rid of their CEO.First,they needed to find out what a CEO actually did.Then they shared those duties among staff and board members,which is exactly what they did.And the employees believes it's been a good change.An employee named Heinrik Kniberg says the company can now act faster,"If you want to get something done,you stand up and start driving that.Workers are also more active and satisfied."And any big decisions are made during the all-member meetings several times a year.

    So,if it's working well for Crisp,could this model become more widespread? Online retailer（零售商）Zappos tried out a similar plan but had unpleasant results.Almost a fifth of its staff decided to leave,and CEO Tony Hsieh admitted that "self-management is not for everyone".Mr Houston,founder of file-sharing service Drew Dropbox,says that total freedom doesn't always feel good,because you no longer know what you're supposed to do,what is important and you're bumping up against other people."

    Would you like to work somewhere with no boss?

    Gravity signals that race through the ground at the speed of light could help seismologists(地震学家) get a better handle on the size of large, destructive quakes soon after they hit，a study suggests. The tiny changes in Earth's gravitational field, created when the ground shifts, arrive at earthquake monitoring stations well before earthquake waves.

    “The good thing we can do with these signals is have quick information on the magnitude (震级) of the quake,” says Martin Vaillée, a seismologist at the Paris Institute of Earth Physics.

    Earthquake equipment in China and South Korea picked up gravity signals immediately after the magnitude-9. 1 Tohoku earthquake that destroyed parts of Japan in 2011. The signals appear as tiny accelerations on earthquake-recording equipment, more than a minute before the seismic waves show up.

    “We can look before the earthquake waves arrive,” says Vallée. “If we see nothing, we can say that the quake that made these was maybe large, but not huge. If we see the signals, it means we really have a very big quake. ”

    Had seismologists been monitoring for gravity changes, they might have realized sooner just how big the Tohoku earthquake was. A small increase in an earthquake's magnitude means a large change in the energy released by the quake-and the destruction expected. That information is important for emergency responders as they decide what resources to arrange.

    It'll be a major contribution if gravitational waves can beat down the time needed to know that a big earthquake is big. But much work remains before gravity signals can be considered a reliable tool in the vital minutes after a big quake. A few extra minutes of warning can save lives, particularly in coastal areas where people can flee ahead of an incoming tsunami.

    Nowadays women appear to have a positive image of themselves as safer drivers than men.

    In a survey done for insurer MetLife, 51% of women said they drive more safely. The evidence is on their side: Men are 3.4 times more likely than women to get a ticket for careless driving and 3.1 times as likely to be punished for drunk driving. "Women are on average less aggressive and more law abiding (守法的) drivers, which leads to fewer accidents," the report says. However, not all male drivers share the same opinion. Of the men surveyed by MetLife, 39% claimed male drivers were safer. The findings did back them upon one point: automotive knowledge. The report showed that more men are familiar with current safety equipment such as electronic stability control, which helps prevent rollover accidents.

    Auto safety unavoidably matters to Money. Insurance companies focus on what classes of drivers have the lowest dollar amounts of claims, and for now, that mainly includes women. In general, women pay about 9% less for auto insurance than men. A study by the website also showed that auto insurance rates are lower for women in most states. Among individual states, women get the greatest, advantage in Wyoming (where they pay 20% less), South Dakota and Washington, D. C, where their insurance costs are 16% lower.

    "More than 11,900 male drivers died in US traffic accidents in 2009, compared with just under 4,900 women drivers" according to the study. "Based on miles traveled, men died at a rate of 2. 5 deaths per 100 million miles traveled, vs. 1.7 deaths for women."

    I'm a single person and live with my dog. Jed isn't just my dog. He is my family. He goes everywhere with me. So I was overjoyed last year to hear that Bunnings was allowing dogs on a leash(皮带)- into their stores.

    But no sooner had the rule come in than it was quickly repealed(撤销). A little girl in Victoria had walked up to a Jack Russell in a store and been bitten(咬伤). That was it. No more dogs.

    I don't know the whole story. But here's what I have to say: dogs bite sometimes and kids are sometimes difficult to control.

    There is nothing I love more than a kid who wants to touch Jed. But what's even better is when they ask permission first.

    I was at my local dog park last week. It's huge, with an off-leash dog area to one side and a fenced-off kids' playground a good distance away. There was a family there that morning —parents and two young girls playing near the dog area. The elder girl started crying at the sight of Jed—" puppy! There a puppy! "Jed went right up and started licking(舔)her, which only made her cry louder.

    My dog was frightened and tried to get away. The little girl ran after him, shouting loudly. The parents did nothing; they just let their kid frighten my dog and then said I should have stopped him from licking her.

    While they had a choice to play elsewhere, I did not. So I had to walk Jed away.

    "I just don't want to have to meet a dog when I go shopping," said one caller on a radio show yesterday. Look, I get that. But the thing is, I don't always want to have your kid kick the back of my seat for two hours on a plane.

    When I lived in the UK and the US, I couldn't walk through the stores without stopping to pat dogs. Why can't we follow their practice?