The tallest building in the United States, the One World Trade Center, opened on November 3, 2014 in New York. The building is 1,776 feet tall, making it the 3rd tallest building in the world. It has 104 floors. The building stands in the area where the twin towers of the World Trade Center once stood. On September 11, 2001, a group of terrorists destroyed these twin towers and killed nearly 3,000 people. It took 8 years to build the new One World Trade Center. Does the height of the building in feet reminds you of something in history? The number is the year when the United States declared(宣布) its independence(独立) from Great Britain.

    One problem with such a tall building is how to clean the windows. Well, a platform(平台) hangs from ropes, and workers on the platform clean windows. On November 12, while two men were busy cleaning windows, a rope of the platform broke near the 68th floor. The two men were saved by cutting a hole in the glass window.

The two tallest buildings in the world are the BurjKhalifa in Dubai, UAE and the Makkah Royal Clock Tower in Mecca, Saudi Arabia.

    All over the world people are hooked on sports, which help them to strengthen their body and build their character.{#blank#}1{#/blank#} They improve the participants' physical skills, and provide entertainment for the audience as well.

    Many people like to watch others play games.{#blank#}2{#/blank#}Often they get very excited when “their” player or team wins. If they are crazy about the game or the player, then they'll become their die-hard fans. Some sports are so interesting that people everywhere go in for them. Football, for example, has spread around the world. Swimming is popular in countries near the sea or in those with many rivers.{#blank#}3{#/blank#}And think of people in cold countries. Masses of people love to skate or ski in Japan, Norway or Canada.

    {#blank#}4{#/blank#}Chinese boxing, also has a very long history. But basketball and volleyball are rather new, which started in the late of the nineteenth century. People are inventing new sports or games all the time. Water skiing, as a modern game, is one of the newest in the family of sports.

    People from different countries or races may not be able to understand each other, but after a game, they get to know each other better and they often become good friends.{#blank#}5{#/blank#}They learn to fight hard but fight fair, to win without pride and to lose with grace. They also learn to be competitive and optimistic, which will equip them for life challenges in the future.

A. They buy tickets or turn on the TV to watch the games.

B. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy!

C. Some sports or games date back thousands of years, like running or jumping.

D. Sports help to train a person's character.

E. Chinese people liked doing sports even in ancient times.

F. Sports are competitive physical activities or games through casual or organized participation.

G. And the friendship may last for a life time.

How northern Europeans beat the winter blues

    Ask a child from northern Europe to draw two pictures—one on a rainy day and a second in the sunshine—and this is what you will get: in the first, as raindrops fall from the top of the page, the man behind the window has an unhappy expression. When a yellow sun sends out some light from the corner, the man is smiling.

    Northern Europeans associate rain with sadness and sunshine with happiness. They think this is true because they are so aware of how their environment affects them{#blank#}1{#/blank#}In October 2008, a group of researchers examined the influence of different daily weather factors, including temperature,wind and sunlight, on 1,200 participants. The conclusion was that good or bad weather had little effect on people's feelings{#blank#}2{#/blank#} A person who is upset on dark or cold days suffers from a negative mood, and he will be likely to experience a sad winter. This is the basis of an illness called Seasonal Affective Disorder (SAD){#blank#}3{#/blank#} 

    AniKalayjian, professor of psychology at Fordham University, advises that we should take steps to strengthen the brain's system against weather-driven mood changes. Research on SAD has been focused on the brain's response to darkness and light. When our eyes detect darkness, the brain gives off melatonin, which starts sleep cycles{#blank#}4{#/blank#} It takes over to help us wake up and feel better when we detect light.“We can encourage people to take charge of their feelings,” says Kalayjian.“We tell them to leave the computers and the indoor games and get out there in the sun{#blank#}5{#/blank#}”

    A day of rain can potentially destroy your plan and affect your mood. But as the Scottish comedian Billy Connolly once said:“There is no such thing as bad weather, only the wrong clothing.”

A. Another chemical called serotonin, however, can make people happy.

B. It affects about10% of the population of northern Europe each year.

C. That's when people can recharge their serotonin and get a better mood.

D. Yet that link has no scientific basis.

E. Most studies prove that a negative feeling is associated with bad weather.

F. They determined that people actually differ in their sensitivity to weather changes.

G. It is seriously doubted among the people who suffer from SAD.

    Dogs can tell how other dogs are feeling from the way their tails are wagging(摇摆)，according to researchers who monitored the animals' heart rate as they watched dogs' movies. The Italian team found that dogs had higher heart rates and became more anxious when they saw others wag their tails more to the left，but not when they wagged more to the right, or failed to wag at all.

    The curious form of communication is probably not intentional, or consciously understood, but is instead an automatic behavior that arises from the structure of the brain, said Giorgio. “It's not something they clearly and exactly understand,” Giorgio told The Guardian. “It's just something that happens to them.”

    Giorgio traces the effect back to the way the two halves of the brain process different experiences. In a previous study, his team showed that when a dog had a positive experience, activity rose in the left side of the brain, bringing about more tail wagging to the right. Or else more tail wagging to the left. The effect is barely visible to the human eye because dogs tend to wag their tails too fast, but it can be seen with slow motion video, or in some larger types.

    In the latest study, the researchers wanted to find out whether the direction of tail wagging had any effect on other dogs. To get an answer, they fitted dogs with vests that recorded their heart rates, and played them movies of other dogs wagging their tails one way and then the other. To ensure the dogs reacted only to tail wagging, and not appearance? They repeated the experiment with dogs that appeared only as shadows.

    “When dogs saw other dogs wagging their tails to the right, there was quite a relaxed reaction and no evidence of an increased heart rate. But when the wagging was to the left we saw an increase in heart rate and a series of behaviors typically associated with stress, anxiety and being more watchful, “Giorgio said. The anxious animals held their ears up, breathed, and kept their eyes wide open. The study appears in the latest issue of Current Biology.

    Selena Gomez and I are scheduled to meet at a low-key coffee shop in Encino. Not wanting to keep the superstar waiting，I arrived at nine,20 minutes early. As I was catching up on e-mails，Selena quietly scooted into the seat next to me. No bodyguard. Not even a drop of make-up. She was ten minutes early and so inconspicuous that no one else in the restaurant looked up so much. Elena was wearing Bebe shorts. She had a baby face and ordered a hot chocolate.

    After making a small talk about what she wore for the shoot，she dived into the subject of her career. Elena declared 2012 the year of movies. She filmed three：SpringBreakers ， a drama；The  Getaway ， an action flick；and HotelTransylvania ， a comedy. Each is a marked move away from the teen style that made her a household name.

    Now that her Disney days are behind her，Selena is at that unstable point in a child star's career where she is trying to grow up—both as a person(she turned 20 in July) and as an artist. "Being part of the Disney Channel was such a blessing，and I'm super happy with what my show accomplished，but acting is something I would like to take on more seriously." She continued，"I don't necessarily feel accomplished. I want to create a whole different persona when it comes to acting."

    Selena has been working full-time since she was seven years old and scored a role on Barney & Friends. In 2007 when she was offered the lead in WizardsofWaverlyPlace ， Selena，her mother，and her stepfather uprooted from Grand Prairie，Texas，to L．A.，where they are settling now.

    Are you afraid of sharks? What about snakes or spiders? Put those fears aside: because in the U.S. you're far more likely to be killed or injured by a deer skipping across the road.

    Deer cause more than 200 humans deaths each year, plus some 29, 000 injuries, all because of 1.2 million collisions between vehicles and deer. Most incidents occur in the eastern U.S., where deer prosper without natural predators like wolves and mountain lions.

    "That's the region in the U.S. where deer-vehicle collisions are such a problem, and where it seems like an effective large carnivore reintroduction could make a really big difference." says wildlife biologist Laura Prugh from University of Washington. She thinks it would help to reintroduce predators like mountain lions, also known as cougars, pumas or panthers, to parts of their historic range from which they've been driven out.

    The researchers say that bringing the predators back to the eastern U.S. would mean 22 percent fewer collisions between cars and deer over three decades. Each year would see five fewer human deaths, 680 fewer injuries and a savings of some 550 million. Sophie L. Gilbert thinks there are great socioeconomic benefits of large predator restoration through reduced wildlife-vehicle collisions and she says, says, "Cougars have shown that they can coexist in short distance with people, with very few conflicts, in a lot of areas out west."

    Still, some folks might be understandably nervous about this kind of plan. After all, reintroducing predators doesn't come without risks to pets and to livestock, and very occasionally to people.

    "Our fear of large predators is so natural and intense that I don't think it's possible to just completely clear it with statistics… What I hope is that knowing that there actually can be some measurable benefits might make people a little more supportive and maybe balance that fear a little bit." says Laura.

    Indeed, the statistics show that cougars would prevent five times as many human deaths from deer-related accidents as they would cause by attacks. But it'll be a tough sell: the press will cover cougar attacks, but a statistically prevented death does not make the news. Nevertheless, "If people in the west can put up with having mountain lions around, I would hope that New Yorkers would be up for the challenge as well."