Earlier this month, two rock climbers achieved what many thought impossible: They climbed up the 3,000-foot-high Dawn Wall in Yosemite NationalPark without specialized equipment. Climbing without this equipment iscalled“free-climbing.”Until now, no one had free-climbed to the top of the rockface, which is a part of the mountain EI Capitan.

    El Capitan, which means“the captain”or“the chief”in Spanish, has always presented a challenge to climbers. But the Dawn Wall, on the mountain's southeast face, is a particularly difficult route to the summit (顶峰). It is a rock formation that is both steep and relatively smooth. This makes free-climbing the rock face seem almost impossible.

    About seven years ago, professional climber Tommy Caldwell spotted a possible route up the wall. It took years of planning and preparation, but this month, Caldwell, 36, and his friend Kevin Jorgeson, 30, finally make the climb.

    Free climbers do use ropes and other basic safety equipment to catch them if they fall — and Caldwell and Jorgeson fell often. Before starting their climb, they broke down their route into 32 sections. Each section was based on a rope length called a“pitch.”The rope was secured into the rock faceto catch the climbers if they fell.

    Caldwell and Jorgeson's goal was to climb the DawnWall without returning to the ground. If they fell, they had to start that pitch all over again. The two men started climbing on December 27. They slept in hanging tents, and a team of friends brought them food each day.

    The men had spent years rehearsing (排练) them ovements it would take to get through each pitch. They made it through the fist half of the climb relatively easily. But halfway up, Jorgeson ran into trouble. In one difficult spot, he fell each time he attempted to climb. After10 days of trying, Jorgeson finally made it to the next pitch.

    Getting through that troublesome pitch gave both climbers renewed energy. They finished the rest of the climb five days later, on January 14.

    In England, people are fond of sport. In other words, lots of English people like the idea of sport and watch sport on TV. But the number who take part in sport is quite small. On the whole, English people prefer to be fat rather than be thin.

    The most popular sport in England is football. Football is played on Saturday afternoon in most towns and the supporters of a certain team will travel from one end of the country to the other to see their team play. There are four divisions(级别) of the football league. Not surprisingly the best teams are in the first division. But the best supporters are often in the fourth division. You have to be a good supporter to watch the fourth division football!

    Many other sports are also played in England, such as golf, in which you try to knock a ball into a hole; basketball, in which you try to get a ball through a net; tennis, in which you try to hit a ball so that your opponent(对手) can not hit it. As you see, if the ball had not been invented, there would have been no sport.

    Actually, that is not quite true. Athletics(田径) isn't played with a ball, nor horse-racing. Perhaps that is why they are not as popular as football!

    The minute you start talking about what you're going to do if you lose, you have lost.

    Some people have a great fear of losing. In fact, fear is not the best description of what they have. It is more like a crazy phobia(恐惧症) that they cannot keep away from. Day after day, these people allow their fear of losing to control everything in their lives. They are so afraid of losing that they try to keep away from losing without considering the cost of doing so.

    When things start to get out of control, fear begins to come in. As the fear of losing or getting hurt overwhelms(充溢) them, they quickly look for excuses, rather than fight back or find a way to deal with their fear. They never realize that losing is just as common as eating and breathing.

    If one is given a choice, who wouldn't prefer winning over losing? After all, winning is exciting and winning is what living is all about. Although we might try hard all the time, we're not going to win every time. In fact, most of us are going to lose a lot more often than we win and, believe it or not, it's not all bad.

    In order to make the most of our abilities ，we have to take risks every now and then. When we take risks, we might get knocked down, or even knocked flat, but with each failure and each loss, we have an opportunity to get better and get closer to the life we expect.

    As health care costs continue to rise, a growing number of companies are working out programs designed to keep their employees healthy.

    Thomas Chapple is the senior vice president. “It's really important to us because medical costs are going up like crazy,” he says. “This company spends more than $ 200 million a year on medical costs for its employees around the country. The best thing we have seen as a way to control the medical cost is individual fitness.”

    “We have a fitness center,” Shawn Flaherty, director of public relations for Freddie Mac., says. “We have a health benefits plan that encourages people to work out three times a week, get cholesterol （胆固醇）checks, as well as 'do not smoke.' If they do that, it will cost them less for the health benefits.”

    Rachelle Clark works for Freddie Mac. “I feel great. You know the benefit is rewarding. I like to look good and feel healthy. I am just fortunate that I work for the company that provides some type of facility for the employees.”

    While on-site fitness centers are popular, some companies pay membership fees at local gyms for employees. The companies also offer classes such as boxing, yoga and dancing. Employees see those health programs as a valuable benefit.

    Tom Brook exercises five days a week. As a newspaper reporter he has a tight schedule, although Tom says it's not that difficult for him to make time for a workout. “It is great. It is right here where we work,” says Tom. “So everybody gets a chance to use it whenever they want to. I have lost weight and never been in better shape.”

    The programs may not be a magic cure for rising health costs, but they seem to have a positive impact on both employers and employees.

Imagine turning on the GPS and seeing an image of your car from above. As the car drives, the map follows along in real time, informing you of any traffic, pedestrians, animals or other things nearby. Routes and names of road appear over the live stream. It's like the map has come to life.

This type of map isn't available yet. But it could be very soon. In 2014, the WorldView-3 satellite was sent into space. Even though it orbits Earth at more than 370 miles (600km) away, it can take images of objects on Earth that are just 10 inches (25cm) across. Looking all the way from outer space, it can make out a smart phone held in your hand. It can tell what types of cars are travelling down a road. But it can't identify your face or read the cars' license plate numbers.

According to some reports, this satellite and other US satellites have the technology to take even sharper images, with a resolution of up to around 4 inches (10cm). But US law forbids making these super-sharp pictures public. But the idea that anybody might be able to spy on the entire Earth in such detail may seem scary. Live, high-detail satellite mapping could be used to keep tabs on anybody at any time, without the person's knowledge. Ray Purdy of University College London told CNN that he couldn't imagine what this could mean for privacy. "Most satellites are commercially owned, so if you have money, you can have that imagery. It means anyone can spy on anyone." he said.

At the same time, live, detailed maps of the Earth's surface could aid humanity in amazing ways. Satellite images can help experts track storms as they form and chart their paths. At high detail, live maps of a disaster area could quickly reveal people in need of rescue as well as the safest routes in or out. Satellites images are already helping the police catch illegal fishing operations. Higher detail may make it possible to catch other criminals in the act. The images could also make it easier for farmers to watch over their crops or for scientists to find minerals. Also, these images play a very important role in monitoring the health of forests and other landscapes.

What do you think? Would you like to see everyone accessing high-detail live maps of the Earth's surface? Please share your idea with us on the website.

Kids are begging parents for cell phones at younger and younger ages, leaving families with tough choices to make. It might take some time to teach kids how to use phones as tools, not toys. Here are a few ways to get the message across.

Tell them not to use phones at school. Phones can be a distraction (干扰) from learning when used in the classroom. {#blank#}1{#/blank#} In fact, 43% of teens admit that they often or sometimes use their phones as a way to avoid face-to-face communication with others.

Encourage them to contact long-distance relatives. {#blank#}2{#/blank#} They're also for keeping in touch with people who you may not get to talk to as often. If you have families who live in another city or state, ask your kids to strike up (发起谈话) a conversation.

Lead by example. Setting an example is not only about how you use your phone, but also about how much you use it. When you feel bored and expect to glance over social media, fight it by taking a short walk. {#blank#}3{#/blank#}

Advise them not to use phones at the dinner table. For many families, the only time they truly get together is breaking bread at the end of a long day. {#blank#}4{#/blank#} Asking your children to leave their phones far from the dinner table is a great way to solve the problem.

{#blank#}5{#/blank#} Sometimes, kids need a little push in order to make better choices about their phones. If they're struggling with healthy habits, put some real-world events on the calendar. Good options include going to an amusement park, working together on a craft project or signing your kids up for sports.

A. Plan other forms of entertainment.

B. Prepare a dinner together with your children.

C. Screen time before bed reduces sleep quality.

D. They can also prevent students from connecting with one another.

E. So it is wise of parents to stress the importance of parent-child time.

F. Also, instead of reading a headline, why not pull out a book to read?

G. Phones aren't just for texting the best friend who lives two blocks away.