SDcamps•演辩营全国英语演讲与辩论赛
Archaeology Archaeology is a source of history, not just a humble auxiliary discipline. Archaeological data are historical documents in their own right, not mere illustrations to written texts. Just as much as any other historian, an archaeologist studies and tries to reconstitute the process that has created the human world in which we live — and us ourselves in so f...
Mimicry in Plants Plant adaptations can be remarkably complex. Certain species of orchids, for instance, imitate female bees, other plants look and smell like dead animals, and still others have the appearance of stones. These strange adaptations to life represent just a few of the sophisticated means by which plants enhance their chances of survival. Mimicry in plants or an...
The Historical Significance of American Revolution The ways of history are so intricate and the motivations of human actions so complex that it is always hazardous to attempt to represent events covering a number of years, a multiplicity of persons, and distant localities as the expression of one intellectual or social movement; yet the historical process which culminated in...
Women in Colonial North America The status of women in colonial North America has been well studied and described and can be briefly summarized. Throughout the colonial period there was a marked shortage of women, which varied with the regions and was always greatest in the frontier areas. This favorable ratio enhanced women’s status and position and allowed them to pu...
Children’s Numerical Skills People appear to be born to compute. The numerical skills of children develop so early and so inexorably that it is easy to imagine an internal clock of mathematical maturity guiding their growth. Not long after learning to walk and talk, they can set the table with impressive accuracy — one knife, one spoon, one fork, for each of the ...
The Origin of Refrigerators By the mid-nineteenth century, the term”icebox”had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with the growth of cities.Ice was used in hotels, taverns,and hospitals,and by some forward-looking city dealers in fresh meat,fresh fish,and...
MARS Mars According to the best evidence gathered by space probes and astronomers, Mars is an inhospitable planet, more similar to Earth’s Moon than to Earth itself-a dry,stark,seemingly lifeless world. Mars’ air pressure is equal to Earth’s at an altitude of 100,000 feet. The air there is 95% carbon dioxide. Mars has no ozone layer to screen out the Sun...
Television Television — the most pervasive and persuasive of modern technologies,marked by rapid change and growth –is moving into a new era,an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world. It is an electronic revolution of sorts, made possible by the marriage of television and computer technologies. The ...
The Nobel Academy For the last 82 years, Sweden’s Nobel Academy has decided who will receive the Nobel Prize in Literature, thereby determining who will be elevated from the great and the near great to the immortal. But today the Academy is coming under heavy criticism both from the without and from within. Critics contend that the selection of the winners often has le...
Oil Refining An important new industry, oil refining, grew after the Civil War. Crude oil, or petroleum — a dark, thick ooze from the earth — had been known for hundreds of years, but little use had ever been made of it. In the 1850’s Samuel M. Kier, a manufacturer in western Pennsylvania, began collecting the oil from local seepages and refining it into ke...
引言： 人该年轻时就年轻，该年老时就年老，这是与自然同步，这就是和谐。和谐就是美，反之就是丑。 A person, like a commodity, needs packaging. But going too far is absolutely undesirable.A young person, especially a female, radiant with beauty and full of life, has all the favor granted by God. Any attempt to make up would be self-defeating. Youth, however, comes and goes in a m...
When Henry ford decided to produce his famous v-8 motor, he chose to build an engine with the entire eight cylinders cast in one block, and instructed his engineers to produce a design in one for the engine. The design was placed on paper, but the engineers agreed, to a man, that it was simply impossible to cast an eight-cylinder engine-block in one piece. Ford said, “Produc...
两条路 这是新年的夜晚。一位老人站在窗边，忧伤的眼睛眺望着深蓝的天空。空中的繁星犹如漂浮在清澈如镜的湖面上的朵朵百合。他慢慢将目光投向地面，此刻，没有什么人比他还绝望，迈向他最终的归宿–坟墓。他已走过通向坟墓的六十级台阶，除了错误和悔恨，他一无所获。现在，他体弱多病，精神空虚，心哀神伤，人到晚年无慰藉。 年轻岁月，如梦般展现在他面前，老人想起父亲把他带到岔路口的那...
Success means different things for different people. Some may equate it with fame, some with wealth and still some with accomplishments. For me, it means fulfilling one’s dreams. Whatever your dreams are, you have a goal there and then focus all your attention on it. Dreams bring you hope and happiness. In the process of struggling for it, you cry, sweat, complain or e...
My one true friend ——Germaine A true friend is always there for you. A person who will help, with all your problems. The one whom you can trust, With all your secrets. And the one who cheer you up when you are lonely. That is a friend. I want to meet. I do not know, if he’s a boy or a girl. but I always believe that I will find my one true friend. 真正的朋友 真正的朋友...
编者按： 你有信仰就年轻，疑惑就年老；有自信就年轻，畏惧就年老；有希望就年轻，绝望就年老；岁月使你皮肤起皱，但是失去了热忱，就损伤了灵魂。 —— 卡耐基 Ambition It is not difficult to imagine a world short of ambition. It would probably be a kinder world: with out demands, without abrasions, without disappointments. People would have time for reflection. Such work as they did wo...
How happy is the little stone ——Emily Dickinson How happy is the little stone. That rambles in the road alone, And doesn’t care about careers, And exigencies never fears—— Whose coat of elemental brown A passing universe put on; And independent as the sun, Associates or glows alone, Fulfilling absolute decree in casual simplicity. 小石头 多幸福的小石头啊， 独自在路上漫...
Stopping by Woods Whose woods these are I think I know, His house is in the village though. He will not see me stopping here, To watch his woods fill up with snow. My little horse must think it queer, To stop without a farmhouse near, Between the woods and frozen lake, The darkest evening of the year. He gives his harness bells a shake, To ask if there is some mistake. The o...
Freedom parrot 呼喊自由的鹦鹉 A man, a great man, a fighter for freedom was traveling in the mountains. He stayed in a caravans① for the night. He was amazed that in the caravans there was a beautiful parrot in a golden cage, continually repeating “Freedom! Freedom!”. And it was such a place that when the parrot repeated the word “Freedom!” it would g...
Devote some of your leisure, I repeat, to cultivating a love of reading good books. Fortunate indeed are those who contrive to make themselves genuine book-lovers. For book- lovers have some noteworthy advantages over other people. They need never know lonely hours so long as they have books around them, and the better the books the more delightful the company. From good boo...