A telescope, called Gaia, is being designed by astronomers in Europe, and it couldn't be more different from Pan-STARRS, which is another telescope being designed. While Pan-STARRS will be looking for asteroids (小行星) and comets headed for Earth, Gaia will be looking at our entire galaxy (银河系).

    Gaia is designed to draw a map of the Milky Way, our home galaxy. Just as a map of your town gives you a picture of where things are located, Gaia's map of the galaxy will tell astronomers where the stars are. Over five years, Gaia will observe (观察) about a billion stars and other objects in our galaxy. Each object will be observed about 70 times.

    Gaia will be sent into space connected to a rocket. It contains two telescopes, each focused at a different angle (角度). These two telescopes act like Gaia's “eyes”. The reason why humans can see things in 3D is that we have two eyes focused on the same object, at slightly different angles. By using two telescopes like eyes, Gaia can produce the first 3D map of the positions of the stars it views.

    Gaia, which is to be sent into space, will be a powerful telescope. If you were to use it on Earth, for example, you could stand 600 miles away from your best friends and still get a clear picture of their hair.

    Gaia is one of more than a dozen telescopes being designed by scientists right now. The next generation of telescopes will reveal new parts of our universe that will seem surprising. The universe, with all its planets, stars and other strange objects, is a puzzle with pieces that we can see by using powerful telescopes.

    The African elephant, the largest land animal remaining on earth , is of great importance to African ecosystem(生态系统). Unlike other animals, the African elephant is to a great extent the builder of its environment. As a big plant-eater, it largely shapes the forest-and-savanna(大草原)surroundings in which it lives, therefore setting the terms of existence for millions of other animals that live in its habitat(栖息地).

    It is the elephant's great desire for food that makes it a disturber of the environment and an important builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and underbushes, and pulls branches off big trees. This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas. In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.

    Take the rain forests for example. In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to get their food as well.

    What worries scientists now is that the African elephant has become an endangered species. If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole ecosystem.

Biography

    When Salinger learned that a car park was to be built on the land , the middle-aged writer was shocked and quickly bought the neighboring area to protect it… The townspeople never forgot the rescue and came to help their most famous neighbor.

    J. D.  Salinger：A  Life by Kenneth Slawenski（Random House,$27）

Mystery（疑案小说）

     “You're a smart boy.  Benny's death was no accident, and you're the only who saw it happen. Do you think the murderer should get away with it ? ”The boy was starting stubbornly at his lap again.

    A thought suddenly occurred to Annika ,“Did you …You recognized the man in the car , didn't you?”

    The boy hesitated, twisting his fingers ,“Maybe ,”he said quietly.

    Red Wolf by Liza Marklund（Atria Books, $25. 99）

Short Stories

    She wants to say to him what she has learned , none of it in class. Some women are borm stupid,and some women are too smart for their own good. Some women are born to give ,and some women only know how to take.  Some women learn who they want to be from their mothers,some who they don't want to be.  Some mothers suffer so their daughters won't.  Some mothers love so their daughters won't.

    You Are Free by Danzy Senna （Riverhead Books,$15）

Humor

    Do your kids like to have fun? Come to Fun  Times! Do you like to watch your kids having fun? Bring them to Fun Times! Fun Times! 's “amusement cycling ”is the most fun you can have , legally , in the United States right now. Why spend thousands of dollars flying to Disney World when you can spend less than half to that within a day's drive lf most cities?

    Happy And Other Bad Thoughts by Larry Doyle（Ecco,$14. 99）

    On the last day before Christmas, I hurried to the supermarket to buy Christmas gifts. In the supermarket, I noticed a little boy, holding a doll and looking so sad. He turned to the old woman next to him, “Granny, are you sure I don't have enough money?” The old lady replied, “You know we don't have enough money to buy this doll, my dear.” Then she left for something else and the boy still stood there.

    Finally, I went to the boy and asked him who he wanted to give this doll to. “It is the doll that my sister wanted so much for this Christmas. She was so sure that Father Christmas would bring it to her.”

    I told him that maybe Father Christmas will bring it to her. But he replied to me sadly, “No, Father Christmas cannot bring it to her where she is now. I have to give the doll to my mother so that she can give it to her when she goes there. My sister has gone to be with God. Daddy says that Mummy will also go to see God very soon, so I thought that she could bring the doll with her to give it to my sister.”

    Hearing this, I quickly reached into my wallet and took a few notes and said to the boy, “What if we checked again, just in case if you have enough money?”

    “OK,” he said, “I hope that I have enough.”

    I added some of my money to his without his seeing and we started to count it. There was enough for the doll.

    The little boy said, “Thank God for giving me enough money.”

    Then he looked at me and added, “I prayed to God yesterday before I slept to make sure I have enough money to buy this doll. He heard me.”

    As kids, my friends and I spent a lot of time out in the woods. "The woods" was our part-time address, destination, purpose, and excuse. If I went to a friend's house and found him not at home, his mother might say, "Oh, he's out in the woods," with a tone (语气) of airy acceptance. It's similar to the tone people sometimes use now a days to tell me that someone I'm looking for is on the golf course or at the gym, or even "away from his desk". For us ten-year-olds, "being out in the woods" was just an excuse to do whatever we feel like for a while.

    We sometimes told ourselves that what we were doing in the woods was exploring (探索). Exploring was a more popular idea back then than it is today. History seemed to be mostly about explorers. Our explorations, though seemed to have less system than the historic kind something usually came up along the way. Say we stayed in the woods, throwing rocks, shooting frogs, picking blackberries, digging in what we were briefly persuaded was an Indian burial mound.

    Often we got "lost" and had to climb a tree to find out where we were. If you read a story in which someone does that successfully, be skeptical; the topmost branches are usually too skinny to hold weight, and we could never climb high enough to see anything except other trees. There were four or five trees that we visited regularly-tall beeches easy to climb and comfortable to sit in.

    It was in a tree, too, that our days of fooling around in the woods came to an end. By then some of us has reached seventh grade and had begun the rough ride of adolescence (青春期). In March, the month when we usually took to the woods again after winter, two friends and I set out to go exploring. We climbed a tree, and all of a sudden it occurred to all three of us at the same time that we really were rather big to be up in a tree. Soon there would be the spring dances on Friday evenings in the high school cafeteria.

    Why is pink or purple a color for girls and blue or brown for boys?

    The answer depends largely on cultural values as well as personal experiences. To the Egyptians, green was a color that represented the hope and joy of spring, while for Muslims, it means heaven. Red is a symbol of good luck in many cultures. In China, children are given money in a red envelope to bring good fortune in the New Year. For many nations, blue is a symbol of protection and religious beliefs. Greek people often wear a blue necklace hoping to protect themselves against evils(灾祸).

    People's choice of colors is also influenced by their bodies' reactions toward them. Green is said to be the most restful color. It has the ability to reduce pain and relax people both mentally and physically. People who work in green environments have been found to have fewer stomachaches.

    Red can cause a person's blood pressure to rise and increase people's appetites(食欲). Many decorators will include different shades of red in the restaurant. Similarly, many commercial websites will have a red “Buy Now” button because red is a color that easily catches a person's eye.

    Blue is another calming color. Unlike red, blue can cause people to lose appetite. So if you want to eat less, some suggest that eating from blue plates can help.

    The next time you are deciding on what to wear or what color to decorate your room, think about the color carefully.