After a confirmed rabies(狂犬病) case in Parke County, Indiana, experts are urging caution if you find a bat(蝙蝠) in your home or office.

    “If you try to kill a bat, you are more likely to get bitten,” said Joy O'Keefe, assistant professor of biology and director of Indiana State University's Centre for Bat Research, Outreach and Conservation. “Most bats people find in their houses are healthy and are not going to bite them and give them rabies.” But they could be a federally endangered species, such as the Indiana Bat, which is found in this area.

    So if you spot a bat in your home or office, don't kill it or touch it with bare hands, O'Keefe said. Instead, put on a pair of heavy gloves and gently move it into a box or bucket. Once contained, the bat can be removed outside.

    “If it's a healthy bat, it'll fly away eventually,” O'Keefe said. “If it doesn't move or seem to be healthy, you can take it to the health department to be tested.”

    This is the time of year when bats move from their summer resting sites to their winter resting sites, O'Keefe said.

    “We get calls every year during the first month of school year from people finding bats in the university's buildings,” said O'Keefe.

    Bats are a great help to people, as every night they can eat up to their entire body weight of insects. Bats, however, are facing great threats from epidemics(流行性疾病), habitat destruction and other things.

    “The best way the average person can help bats is by understanding them and by telling other people how awesome bats are and what bats do for us,” O' Keefe said. “Hopefully, it will make people think that if there's a bat in their house, they should try to get it out but not kill it. That would be really positive for bats—to not have people be one of their major threats.”

    When thinking about quitting（停止）smoking...

    List all the reasons why you want to quit.Every night before going to bed,repeat one of the reasons 10 times.

    Decide positively that you want to quit.Try to avoid negative thoughts about how difficult it might be.Develop strong personal reasons as well as your health and responsibility to others.For example,think of all the time you waste taking cigarette breaks,rushing out to buy a pack,hunting a light,etc.Set a date for quitting—perhaps a special day like your birthday,a holiday.If you smoke heavily at work,quit during your vacation.Make the date holy seriously, and don't let anything change it.Begin to condition yourself physically;start a modest（适当的）exercise;drink more water;get plenty of rest.

    Immediately after quitting...

    The first few days after you quit,spend as much free time as possible in places where smoking is prohibited,e.g. libraries,museums,theatres,department stores,etc.

    Drink large quantities of water and fruit juice.Try to avoid wine,coffee,and other drinks which remind you of cigarette smoking.

    Strike up a conversation with someone instead of a match fora cigarette.

    If you miss the feeling of having a cigarette in your hand,play with something else—a pencil,a pen,a ruler.If you miss having something in your mouth,try a fake（仿制的）cigarette.

    Why do you go to the library? For books, yes—but you like books because they tell stories You hope to get lost in a story or be transported into someone else's life. At one type of library you can do just that—even though there's not a single book.

    At a Human Library, instead of books, you can "borrow" people. People with unique life stories volunteer to be the "books." For a certain amount of time, you can ask them questions and listen to their stories, which are as fascinating as any you can find in a book. (If you attend, make sure to review the habits that make you a good listener.) Many of the stories have to do with some kind of depressing topic. You can speak with a refugee, a soldier suffering from PTSD (创伤后遗症), a homeless person and a woman living with HIV. The Human Library encourages people to take time to truly get to know and learn from someone they might otherwise make a snap judgement about. According to its website, the Human Library is "a place where difficult questions are expected, appreciated and answered."

    The Human Library Organization came to be in Copenhagen, Denmark in 2000. Romni Abergel and his colleagues hosted a four-day event during a major Northern European festival. After the success of this event, Abergel founded the Human Library Organization, hoping to raise awareness among youth about depression, which has been growing ever since.

    Though there a few permanent human libraries, most aren't place at all, but events. Though many do take place at physical libraries, you don't need a library card—anyone can come and be part of the experience. There have been human library events all over the globe, in universities and in pubs, from Chicago to Tunis to Edinburgh to San Antonio. Check out the organization's Facebook page to see when the Human Library might be arriving near you.

    Say you're sitting around with some friends playing video games and someone mentions a game that happens to be one of your favorites. “Oh, that game's easy. So not worth the time,” one of your friends says. The others agree. Although you enjoy the game quite a lot, not wanting to argue with them, you go along with the crowd.

    You have just experienced what is commonly referred to as peer pressure（同伴压力）, also called peer influence. You will adopt a certain type of behavior, dress, or attitude in order to be accepted as part of a group of your “peers”. As a teen, you are likely to have experienced the effect of peer pressure in a number of different areas.

    We are all influenced by our peers at any age. For teens, as school and other activities take you away from home, you may spend more time with your friends than with your family. As you become more independent, your peers naturally play a greater role in your life.

    According to Dr. Casey from Cornell University, teens are very quick and accurate in making decisions on their own and in situations where they have time to think. However, when they make decisions in the heat of the moment or in social situations, their decisions are often influenced by factors like peers. In a recent study, teen volunteers played a video driving game, either alone or with friends watching. The researchers discovered that the number of risks teens took more than doubled when their friends were watching, compared with when they played alone. This shows that teens may find it more difficult to controlrisky behavior when their friends are around, or in situations where they are extremely angry.

    Just as people can influence us to make unwise choices, they can also influence us to make good ones. A teen might join in a volunteer project because his or her friends are doing it, or get good grades because his or her friends think getting good grades is important. In fact, friends often encourage each other to study, or try out for sports.

    While we are always influenced by those around us, the decision to act or not is up to us. So when it comes to decision making, the choice is up to you.

    When you think back to the blackboard from your school days, what color is it? Chances are that it's green. So what's up with the name? Originally, blackboards were really black. Before wall-sized blackboards existed, late 18th-century students used their own mini boards made of slate (石板) or painted wood, according to Concordia University, Those first boards were, in fact, black, and they paved the way for the larger ones.

    In 1800 when a Scottish headmaster named James Pillans wanted his students to draw maps, the students couldn't draw the maps their teacher wanted on their tiny boards, so Pillans put several slates together to create a large board. Problem solved! From there, the idea spread quickly as teachers could finally show a concept to the whole class at one time. By 1815, the massive writing spaces were common enough to earn their own name: blackboard.

    The color change came in the 1960s when companies sold, steel plates, coated with green enamel (漆) instead of the traditional dark slate. The new material was lighter and less fragile than the first blackboards, so they were cheaper to ship and more likely to survive the journey. Teachers weren't complaining either. After all, the new "greenboards" made the chalk powder easier to erase. Plus, the enamel left less of a glare and the color was nicer to look at. At that point, people started using the word "chalkboard "as a more accurate descriptor, but "blackboard" still stuck around.

    Black Friday

    The day after Thanksgiving is the start of the holiday shopping season. Thanksgiving is always on a Thursday, so the day after is a Friday. This day has come to be known as Black Friday. It has been the busiest shopping day of the year since 2005.

    Most stores offer great deals on Black Friday. They open their doors in the small hours of the morning. They try to attract shoppers with big discounts. Some items like TVs are much cheaper than usual. Stores may even lose money on these items. They hope that shoppers will buy gifts for other people while they are in the store.

    Black Friday is a great time to get good deals. The problem is that there are not enough low-priced items to go around. Each store may only have a few. These items are in high demand. People stand in long lines to get such great deals. They may line up hours before a store opens. They may be hoping to get a low price on a TV or laptop, but not everyone who wants one will get one. Some people leave disappointed.

    The situation can be tense(紧张的). Some Black Friday events have been violent. Large, eager crowds have trampled(践踏) workers. Fights have broken out over toys or people cutting in line. People have shot one another over parking spots. But most Black Friday events are safe and fun. Still, if you plan on going, expect large crowds and a bit of pushing and shoving.

    So where does the name "Black Friday" come from? It was first used in Philadelphia in the 1950s. The police called this day Black Friday because of the heavy traffic it drew. In the 1960s, spread across the country. It seems that it is here to stay.

    Now people all over the country take part in the event known as Black Friday. It is even spreading to other parts of the world. Stores have held Black Friday events in the U.K., Australia, and Brazil since 2012. In Costa Rica Black Friday is known as "Viernes Negro." And in Mexico, stores offer an annual weekend of discounts. They call it "El Buen Fin," which means "the good weekend" in Spanish. I guess the language of savings is universal.