SDcamps•演辩营全国英语演讲与辩论赛
Raising Oysters In the oysters were raised in much the same way as dirt farmers raised tomatoes- by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about. Next, they “planted” fertilized oyster eggs, which within two or three weeks hatched into larvae. The larvae drifted un...
相关专题: 精美英文欣赏 美丽英文诵读 My father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was younger, he was a member of a small country music band. They would play at local dances and on a few occasions would play for the local radio s...
Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the nineteenth century, the movement of water in trees and other tall plants was a mystery. Some botanists hypothesized that the living ...
Archaeology Archaeology is a source of history, not just a bumble 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 Archaeological data are historical documents in their own right, not mere illustrations to written texts, Just as much as any other historian, an archaeologist studies and tries to reconstitute the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 fa...
Skyscrapers and Environment In the late 1960’s, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a city often overburdens public transportation and parking lot capacities. Skyscrapers are also lavish consumers, and wasters...
Lesson 6: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 tec...
Vision by Human vision like that of other primates has evolved in an arboreal environment. In the dense complex world of a tropical forest, it is more important to see well that to develop an acute sense of smell. In the course of evolution members of the primate line have acquired large eyes while the snout has shrunk to give the eye an unimpeded view. Of mammals only human...
The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun’s very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and heat. This energy is librated at the center of the Sun as billions upon billions of nuclei of hydroge...
英语精美散文欣赏:YOU 相关专题: 精美英文欣赏 美丽英文诵读 NSDA“SDcamps”全国英语演讲与辩论大赛（大学组）/SDcamps全国中小学生英语演讲与辩论大会（中小学及幼儿组）/美式辩论赛（以下简称大赛/大会）现诚招全国省市合作伙伴或城市合伙人，共同进行推广NSDA赛事品牌、举办赛事及培训活动、开展素质教育、美式营地项目等多方面合作。 我们希望认同NSDA理念，有赛事组织经验，或有教育资源，特别是有理...
相关专题: 精美英文欣赏 美丽英文诵读 A lady in a faded gingham dress and her husband, dressed in a homespun threadbare suit, stepped off the train in Boston, and walked timidly without an appointment into the president of Harvard’s outer office .The secretary could tell in a moment that such backwoods country folk had not business at Harvard, and probably didn’t even deserve ...
A Greek to Remember 一位值得纪念的希腊人 Diogenes was a famous Greek philosopher of the fourth century B.C.,who established the philosophy of cynicism.He often walked about in the daytime holding a lighted lantern,peering around as if he were looking for something.When auestioned about his odd behavior,he would reply,”I am searching for an honest man.” Diogenes h...
Think it over…… 好好想想…… Today we have higher buildings and wider highways,but shorter temperaments and narrower points of view; 今天我们拥有了更高层的楼宇以及更宽阔的公路，但是我们的性情却更为急躁，眼光也更加狭隘； We spend more,but enjoy less; 我们消耗的更多，享受到的却更少； We have bigger houses,but smaller famillies; 我们的住房更大了，但我们的家庭却更小了； We have mo...
Russell Conwell : Acres of Diamonds When going down the Tigris and Euphrates rivers many years ago with a party of English travelers I found myself under the direction of an old Arab guide whom we hired up at Baghdad, and I have often thought how that guide resembled our barbers in certain mental characteristics. He thought that it was not only his duty to guide us down thos...
Franklin Delano Roosevelt: First Inaugural Address President Hoover, Mr. Chief Justice, my friends: This is a day of national consecration. And I am certain that on this day my fellow Americans expect that on my induction into the Presidency, I will address them with a candor and a decision which the present situation of our people impels. This is preeminently the time to ...
[Swearing-in on Ronald Reagan by USSC Chief Justice Warren Burger] Thank you. Thank you. Senator Hatfield, Mr. Chief Justice, Mr. President, Vice President Bush, Vice President Mondale, Senator Baker, Speaker O’Neill, Reverend Moomaw, and my fellow citizens: To a few of us here today this is a solemn and most momentous occasion. And, yet, in the history of our nation it is ...
Martin Luther King, Jr: “I’ve Been to the Mountaintop” Thank you very kindly, my friends. As I listened to Ralph Abernathy and his eloquent and generous introduction and then thought about myself, I wondered who he was talking about. It’s always good to have your closest friend and associate to say something good about you. And Ralph Abernathy is the...
Lyndon Baines Johnson: “We Shall Overcome” Joint Session of Congress Address on Voting Legislation Mr. Speaker, Mr. President, Members of the Congress: I speak tonight for the dignity of man and the destiny of democracy. I urge every member of both parties, Americans of all religions and of all colors, from every section of this country, to join me in that cause...