Space is where our future is — trips to the Moon, Mars and beyond. Most people would think that aside from comets(彗星) and stars, there is little else out there. But, since our space journey started we have left so much trash(垃圾) there that scientists are now concerned that if we don't clean it up, we may all be in mortal(致命的) danger.

    The first piece of space junk was created in 1964, when the American satellite Vanguard Ⅰ stopped operating and lost its connection with the ground center. However, since it kept orbiting around the Earth without any consequences, scientists became increasingly comfortable abandoning(抛弃) things that no longer served any useful purpose in space.

    It is estimated(估计) that there are now over 500,000 pieces of man-made trash orbiting the Earth at speeds of up to 17,500 miles per hour. The junk varies from tiny pieces of paint chipped off rockets to cameras, huge fuel tanks, and even odd items like the million-dollar tool kit that astronaut Heidemarie Stefanyshyn Piper lost during a spacewalk.

    The major problem with the space trash is that it may hit working satellites and damage traveling spacecraft(飞船). Moreover, pieces of junk may collide(碰撞) with each other and break into pieces which fall back to the Earth. To avoid this, scientists have invented several ways for clearing the sky. Ground stations have been built to monitor larger pieces of space trash to prevent them from crashing into working satellites or space shuttles. Future plans include a cooperative effort among many nations to stop littering in space and to clean up the trash already there.

    When you are travelling in Thailand, which means of transport is the best choice?

    You can rent a variety of motorbikes or bikes in Thailand. It seems to be very popular in most of the beaches and islands along the places in the north. The most popular bikes are the little 125 cc Honda Dream which you can get for about 150 baht (铢) a day or as little as 3,000 baht per month, making it the cheapest way to tour Thailand for the people from other countries.

    Sometimes you will have to go somewhere by taxi. When you are in cities in Thailand, especially in Bangkok, always remember to get a taxi that is traveling on the roads. Some drivers outside hotels refuse to use the meter (计程表). They will ask a price which is several times the price when they use the meter!

    The quality of the roads in Thailand is generally pretty good, so renting cars is another way to get around. The big car rental companies may offer you slightly older cars at a very reasonable (合理的) price. It is a little surprising considering that the cost of buying a car in Thailand is more than that in the West. Petrol is also reasonably priced in Thailand, more expensive than American prices, but much cheaper than what is paid in Europe. In the past, Bangkok could be a difficult place to drive in—signs were generally in Thai only, making it a hard job to find exactly where you were by looking around. But now, the situation is improved. In a lot of places, even the farthest corners of the country, street signs are in both Thai and English.

    My grandfather came from Hungary and was the only one in his family who settled down in the United States. The rest of his family remained in Europe. When World War I broke out, he seemed to have become another man, downhearted. Such obvious change was not born out of concern for his welfare, but out of fear: if his only son, my uncle, had to go to war, it would be cousin fighting against cousin.

    One day in 1918, my Uncle Milton received his draft notice. My grandparents were very upset. But my mother, at the age of 10, felt on top of the world about her soldier brother going off of war. Realizing how he was regarded by his little sister and all of her friends, my uncle bought them all service pins, which meant that they had a loved one in the service. All the little girls were delighted.

    The moment came when my uncle and the other soldiers, without any training but all in uniforms, boarded the train. “The band played and the crowd cheered. Although no one noticed, I'm sure my grandmother had a tear in her eye for the only son. The train slowly pulled out, but not about a thousand yards when it suddenly paused. Everyone stared in wonder as the train slowly returned to the station. There was a dead silence before the doors opened and the men started to step out. Someone shouted, “The war is over!”For a moment, nobody moved, but then the people heard someone bark orders at the soldiers. The men lined up in two lines, walked down the steps, and with the band playing, marched down the street, as returning heroes, to be welcomed home. My mother said it was a great day, but she was just a little disappointed that it didn't last a tiny bit longer.

    It's a little hard to figure out the rules for sure,  but the baby African buffalo( 水牛) seems to have the upper hand. The two stand a couple feet apart, staring at each other. Behind them, their mothers look on with the kind of indifference(不关心) of mothers  everywhere who see their kids playing a harmless game.

    The alarm went off about half an hour ago, the second time tonight. Here, one bell means “elephant”, two, “rhino” (犀牛), and three and four, 1 really can't remember for what, because when you're awoken by bells in the middle of the night, your first thought won't be “Animal! ”.But as soon as I realized it was the rhino alarm.

    I was running for the stairs. Yet I'm the only one watching the animals stare-down. Either everyone else died of a heart attack when the bells went off, or l was the only one in the entire hotel who didn't turn the alarm switch to off before going to bed.

    The Ark, a hotel shaped like the biblical ark(圣经的方舟) , lies in the highlands of Kenya's Aberdare National Park, about 100 kilometers north of Nairobi. At the Ark's prow(船首) are huge windows overlooking a waterhole. Earlier tonight, I'd watched a pack of wolves, buffalos and elephants. And now, at three or so in the morning, I'm down for rhino bells. The first time, 2.5 hours ago, it was a single black rhino, which came down, got a drink, and left. I'd have been sorry for the lost sleep.  I've already arranged with a guide to take me out at sunrise for the so-called “should never miss” bird-watching, where we'll get to see 30 species, but really, how many times in your life will you get to wake up and say, “Wow! Rhino!”? Isn't that the definition of a pretty good night? Last week we went from Uganda into Kenya.  Before I left home, 1 thought I'd be happy with ten elephants and five or six giraffes on the whole trip. I didn't dare to dream the rhino.

    How do young children learn to have good values? How can parents teach their children about the importance of kindness and patience? At a time more and more parents worry about the violent images (暴力形象) their children see on TV and on the Internet. So many parents are turning to fairy tales. They want to teach their children how to behave in society by this way.

    It is believed that fairy tales have a great influence on children because they describe the two sides of good and evil (邪恶) very clearly. When children hear the tales, they learn to care about others' feelings. In each tale, they can see that there are many different kinds of people in the world and that we all have a choice about what kind of person we want to be. We can choose to do good actions, rather than bad ones, in our lives.

    What kind of values can children learn from fairy tales? In The Princess and the Pea, a poorly dressed girl says she is a princess. Few people believe her, so she is given a difficult test. When she passes the test, we learn that her dream comes true because she stays true to herself. In the Little Mermaid (《小美人鱼》), the mermaid, who lives under the sea, wishes to be with the humans on land. Through her experiences, we learn about the importance of living with and accepting other cultures.

    Teaching values is probably the main reason for encouraging children to read fairy tales. These tales can teach children lessons about human relationships that have been accepted around the world for many centuries. This might be the reason why they have been around for so long and will not disappear any time soon.

    Have you ever wondered how your favorite NBA team received its famous name? All NBA teams have an interesting story or a history behind their names. Some of the names reflect the city's culture or history, others came from previous owners and many were selected through "Name the Team" contests.

    For teams like Los Angeles and Utah, the names were not always a reflection of the city. Even though Los Angeles has no lakes, the Laker name has been a city treasure for almost 40 years. Before going to Los Angeles, the team originated in Minneapolis, Minnesota. In 1948, team officials chose the name for its direct relationship to the state's motto, "The Land of 10,000 Lakes." The team name went unchanged after moving to Los Angeles in 1960.

    Because Utah's team originated in New Orleans, Louisiana, it was called the Jazz. In 1974, New Orleans club officials chose the name to represent the city for its reputation as the "jazz capital of the world." The name stayed with the team even after finding a new home in Salt Lake City, Utah in 1979.

The Chicago Bull's original owner, Richard Klein, named the team the Bulls. He picked the name because a fighting bull is relentless, and never quits. Klein, who founded the club in1966, believed these qualities were necessary for a championship team and hoped his Chicago athletes would live up to the team name. A belief that Bulls—winner of the six NBA championships have definitely followed.

    In 1967, the Indian Pacers selected their team name in a different way from most other teams. Their decision was based on what they wanted to accomplish in the NBA. Team officials chose the Pacers name because the organization wanted to set the "pace" in professional basketball.