本帖最后由 Ester 于 2012-9-25 11:42 编辑
都是12岁左右的孩子写的：
Although Egyptians were renowned for their medicine and for papyrus, other culture had impressive invention of their own.Around the time that paparus was first used in Egypty, themesopotamians were making pottery using the world's first potter's wheel. Not long after, horse-drawn chariates were being invented.As early as 1,000 years before Chirst, the Chinese people were using compasses because they don't want to lose their way. The ancient world, then, was filled with great inventions that, although they sound commonplace today, revolutionized life duringthose time. These inventions are history's first inkling of science.
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After conquering Asia Minor, Alexander headed toward Persia. AtGordium, he found a huge knot, which was created by an old townhero, tieing an oxcart to a pole in the center of the town.Alexander decided to solve the Gordian Knot because whoever untiethe knot would be the king of Asia. Soon he had an answer. He cutthe knot in to two by his sword, and successfully solved thepuzzle. Alexander really conquered Persia and became Alexander theGreat.
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Before the development of writing, people retain information intheir heads. But it is difficult to recall things and pass them on accurately to a different person. Writing is a way of storing information and passing it to someone who lives in a different place or at different times. Writing is not invented by one personor one society. Instead, it had gradually evolved in different places and times because people need to keep accounts or to record events. Writing takes many forms, from simple picture writing to fancy scripts. Writing is found on every kinds of materails, from paper to pottery. Today, writing is an indispensible part of our daily life.
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To call Sir Issac Newton brillian would be an understatement. Helay down three important laws of motion, which guide the science of physics. He also formulated the universal laws of gravitation. In his study of motion, he discovered that he needed to learn better in mathematics. He developed a new mathematical field we now call calculus, and it was an essential tool in science. He even showed us that the white light is really composed of many different colors of light. In addition, he came up with an entirely different design for telescope. Many historians said Sir Issac Newton was the greatest scientist in the world.
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Democritus，an ancient Greek, is one of history's first true scientists. Demoritus was wrong about many ideas, but he was right with two important ideas. The first idea is that all things are made of atoms. The second is that atoms are in constant motion.Democritus was not well received in his time. Most of the scientits didn't accept his ideas. The idea of the existence of atoms didn't gain much support in scientists in almost 2000 years! Scientist don't always recognize a wonderful idea when they encounter one.The history of science is literally filled with instances of scientists rejecting sound ideas in favor of bad ones.
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Booklice are tiny insects which feed on mold. They crawl slowly on bookshelves looking for dead insect bodies. A booklouse is usually less than three millimeters long. But Don't just look for them,listen for them too. The female attracts a male by rubbing her body against a piece of paper or along another flat surface. So if you hear a very faint creaking noise in your library, you won't be hearing things. The place is just "alive" with booklice!
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Sherlock Holmes, a fictional character born in 1854, London,England, was a brillian detective in some of the most memorable stories ever written. We knew very few details about his family because they were hardly mentioned in the stories. He enjoyed classical music and opera. He was attentive, intelligent, and alert. He was also superbly good at disguises, which he used while investigating crimes.
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The 16th and 17th centuries were the most exciting times in the history of science. The excitement began in 1543 when two works were published. The first one was by Nicolaus Copernicus. His booklaid the idea about the earth, sun, planets and stars. Copernicus believed that Ptolemy's view of the universe was wrong. Rather then placing the earth in the center and believing that all the planets revolving around it, Copernicus put the sun in the center and assumed that all the planets travelling around the sun. This viewis called the heliocentric system, because helios, a Greek god, is the god of the sun. It is also called the Copernicus system in honor of Copernicus.
