新概念优美背诵短文50篇 Unit17:Evolution of Sleep17.Evolution of sleepSleep is very ancient. In the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may extend back as far as the reptiles. There is some evidence that the two types of sleep, dreaming

28.Changing Roles of Public EducationOne of the most important social developments that helped to make possible a shift in thinking about the role of public education was the effect of the baby boom of the 1950&#39s and 1960&#39s on the schools. In the 1920&#39s, but especially in the Depression con

新概念优美背诵短文50篇 Unit16:The War between Britain and France16. the war between Britain and FranceIn the late eighteenth century, battles raged in almost every corner of Europe, as well as in the Middle East, south Africa ,the West Indies, and Latin America. In reality, however, there was only one major w

03 The Definition of &ldquoPrice&rdquoPrices determine how resources are to be used. They are also the means by which products and services that are in limited supply are rationed among buyers. The price system of the United States is a complex network composed of the prices of all the products boug

05 The Beginning of DramaThere are many theories about the beginning of drama in ancient Greece. The on most widely accepted today is based on the assumption that drama evolved from ritual. The argument for this view goes as follows. In the beginning, human beings viewed the natural forces of the wo

新概念优美背诵短文50篇 Unit14:A Rare Fossil Record14 A Rare Fossil RecordThe preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a higher cha

新东方优美背诵短文50篇 Unit32:Botany32 BotanyBotany, the study of plants, occupies a peculiar position in the history of human knowledge. For many thousands of years it was the one field of awareness about which humans had anything more than the vaguest of insights. It is impossible to know today just what ou

The story goes that two friends were walking through the desert. During some point of the journey they had an argument, and one friend slapped the other one in the face.话说两个好朋友正在穿越一个沙漠。途中他们忽然争吵了起来，其中一个一巴掌扇在另外一个人的脸上。The one who got slapped was hurt, but without saying anything, he wrote in the sand:

新概念优美背诵短文50篇 Unit15:The Nobel Academy15 The Nobel AcademyFor the last 82years, Sweden&#39s 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

新东方优美背诵短文50篇 Unit25: Movie Music25. Movie MusicAccustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment when the Lumiere films were sho

A man and his girlfriend were married. It was a large celebration.一个男人和他的女朋友结婚，举行了一场盛大的结婚庆典。All of their friends and family came to see the lovely ceremony and to partake of the festivities and celebrations. All had a wonderful time.所有的朋友和家人都来到结婚典礼上参加欢宴和庆祝活动。大家都过得很开心。The bride was gorgeous in her wh

01 The Language of MusicA painter hangs his or her finished pictures on a wall, and everyone can see it. A composer writes a work, but no one can hear it until it is performed. Professional singers and players have great responsibilities, for the composer is utterly dependent on them. A student of m

All of us have read thrilling stories in which the hero had only a limited and specified time to live. Sometimes it was as long as a year sometimes as short as twenty-four hours, but always we were interested in discovering just how the doomed man chose to spend his last days or his last hours. I sp

新东方优美背诵短文50篇 Unit26:International Business and Cross-cultural Communication26. International Business and Cross-cultural CommunicationThe increase in international business and in foreign investment has created a need for executives with knowledge of foreign languages and skills in cross-cultural co

Shelly to Elizabeth HitchenerChestnut Cottage, KeswickTuesday, 12 November 1811雪莱致伊丽莎白&#8226西琴勒Chestnut Cottage, Keswick星期二1811年11月12日Your letter of the 1st hath this moment reached me. I answer it according to our agreement, which shall be inviolable. Truly did you say that, at our arising in the m

新东方优美背诵短文50篇 Unit27:Scientific Theories27. Scientific TheoriesIn science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in

新概念优美背诵短文50篇 Unit9:SuburbanizationIf by "suburb" is meant an urban margin that grows more rapidly than its already developed interior, the process of suburbanization began during the emergence of the industrial city in the second quarter of the nineteenth century. Before that period the city was a s

新概念优美背诵短文50篇 Unit6:TelevisionTelevision-----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

04 ElectricityThe modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a power failure, people grope about in flickering candlelight, cars hesitate in the streets

Youth is not a time of life, it is a state of mind, it is not a matter of rosy cheeks, red lips and supple knees, 青春不是生命的一段时光，不是指红润的脸颊、红扑扑的嘴唇和柔软的双膝；it is a matter of the will, a quality of the imagination, a vigor of the emotions, it is the freshness of the deep spring of life.它是一种精神状态，是指不懈的干劲、丰富的想象

02 Schooling and EducationIt is commonly believed in United States that school is where people go to get an education. Nevertheless, it has been said that today children interrupt their education to go to school. The distinction between schooling and education implied by this remark is important.Edu

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 questioned about his odd behavior, he would reply, "I am searching fo

新东方优美背诵短文50篇 Unit40:Cohesion-tension Theory40 Cohesion-tension TheoryAtmospheric 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 c

Once upon a time there was a child ready to be born. So one day he asked God, "They tell me you are sending me to earth tomorrow, but how am I going to live there being so small and helpless?"从前，有个孩子马上就要诞生了。于是有一天他问上帝：“听说明天您就送我去人间了，但是，我这么弱小和无助，我在那儿怎么生活呢？”God replied, "Among the many angels, I chose o

新东方优美背诵短文50篇 Unit41:American Black Bears41.American black bearsAmerican black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same

Good morning. This week, I appeared before Congress to report on the state of our union. I asked members of the House and Senate from both sides of the aisle to join me in confronting the great challenges before us, so we can build a future of hope and opportunity for all Americans.Two key challenge

Transcript of the Prime Minister's Broadcast on the Environment and BusinessFriday 27 October 2000One of the usual criticisms of Governments and politicians is that they are all words and no action.So it was a bit of a novelty this week to be under fire not for lack of action on the environment but

Good morning. One of my most solemn experiences as President is visiting men and women recovering from wounds they suffered in defense of our country. Spending time with these wounded warriors is also inspiring, because so many of them bring the same courage they showed on the battlefield to their b

THE PRESIDENT: Good morning. For many Americans, the new year began with a resolution to live a better and healthier life. Whatever goals you have set for yourself this year, one goal we can all share is reforming our Nation's health care system.Americans are fortunate to have the best health care s

Good morning. This Monday, our Nation will mark the 5th anniversary of the attacks of September the 11th, 2001. On this solemn occasion, Americans will observe a day of prayer and remembrance, and Laura and I will travel to New York City, Pennsylvania, and the Pentagon to take part in memorial cerem