at1792
shelly
珀西·比希·雪莱Percy Bysshe Shelley)生卒:1792年8月4日-1822年7月8日Literary movement Romanticism,是英国文学史上最有才华的抒情诗人之一。
William Wordsworth 曾称其为"One of the best artists of us all“,同时期的拜伦称其为"Without exception the best and least selfish man I ever knew", 更被誉为诗人中的诗人。
其一生见识广泛,不仅是柏拉图主义者,更是个伟大的理想主义者。
创作的诗歌节奏明快,积极向上。
代表作品有长诗《解放了的普罗米修斯》和《倩契》,以及不朽的名作《西风颂》。
1792年生于苏萨科斯郡一个贵族家庭,12岁被送进伊顿贵族学校受教育1810年入牛津大学学习,第二年因发表《无神论的必然性》小册子被牛津大学开除,不久到都柏林参加爱尔兰人民的民族独立运动。
1819年完成诗剧《解放了的普罗米修斯》,诗剧采用古代神话题材,表达了反抗专制统治的斗争必将获胜的信念和空想社会主义的理想。
雪莱在1822年7月驾小艇旅行途中,偶遇风暴,溺水于斯佩齐亚海湾,时年30岁。
8岁时雪莱就开始尝试写作诗歌.1811年3月25日,由于散发《无神论的必然》(The Necessity of Atheism),雪莱的父亲是一位墨守成规的乡绅,他要求雪莱公开声明自己与《无神论的必然》毫无关系,而雪莱拒绝了,他因此被逐出家门。
被切断经济支持的雪莱在两个妹妹的帮助下过了一段独居的生活,这一时期,他认识了哈丽雅特·韦斯特布鲁克(Harriet Westbrook),他妹妹的同学,。
雪莱与这个十六岁的少女仅见了几次面,因为在家中受父亲虐待后便毅然赶回伦敦,带着这一身世可怜且恋慕他的少女踏上私奔的道路。
次年五月,携玛丽(雪莱后来的第二任妻子)再度同游欧洲,在日内瓦湖畔与拜伦交往密切,这两位同代伟大诗人的友谊一直保持到雪莱逝世。
法国画家雅克-路易·大卫名画赏析(一)
法国画家雅克-路易·大卫名画赏析(一)雅克-路易·大卫(Jacques-Louis David,1748年-1825年),法国画家,新古典主义画派的奠基人和杰出代表,他在1780年代绘成的一系列历史画标志着当代艺术由洛可可风格向古典主义的转变。
除去在艺术领域的建树之外,他还是罗伯斯庇尔的朋友、雅各宾派的一员,活跃于法国大革命之中。
罗伯斯庇尔失势之后,又投靠拿破仑。
拿破仑失势之后就自我流放到布鲁塞尔,并终老于此。
代表作品《荷拉斯兄弟之誓》《马拉之死》《萨宾妇女》。
The Farewell of Telemachus and Eucharis图片尺寸:4006 × 3419 像素作品名称:The Farewell of Telemachus and Eucharis创作者:雅克-路易·大卫 Jacques-Louis David创作年代:1818风格:新古典主义体裁:神话画材质:布面油画现位于:私人收藏实际尺寸:103 x 87 cmLictors Bearing to Brutus the Bodies of his Sons 护从搬来布鲁特斯儿子的尸体图片尺寸:5811 × 4414 像素作品名称:Lictors Bearing to Brutus the Bodies of his Sons中文名称:护从搬来布鲁特斯儿子的尸体创作者:雅克-路易·大卫 Jacques-Louis David创作年代:1789风格:新古典主义体裁:历史画材质:布面油画现位于:Louvre, Paris, France实际尺寸:323 x 422 cm版权信息:Public domain《护从搬来布鲁图斯儿子的尸体》(法语:Les licteursrapportent à Brutus les corps de ses fils)是法国艺术家雅克-路易·大卫的一幅油画作品。
四级真题ludwigvanbeethoven长篇阅读
四级真题ludwigvanbeethoven长篇阅读Ludwig van Beethoven was born in Bonn, Germany, on December 16, 1770. His father and grandfather were both musicians.Beethoven revealed his own musical talents when he was young. At the age of 7 he was playing in public.In 1787 Beethoven travel to Vienna and met his idol, Mozart. In 1792 he became a pupil of Haydn's but was dissatisfied with his method of teaching. In order notanother composer, Joan Schenk.Nevertheless, he quickly became famous. Then tragedy struck. He discovered that he was slowly becoming deaf.This was the great crisis of his life.After this, Beethoven's music became more profound. He developed a completely original style of composing. It reflected his violent emotions, his sufferings, and joys. At this time Beethoven composed the most popular of all symphonies, his fifth, Fate, in which he expressed a musical depiction of his struggle with the fate of deafness.In 1826 Beethoven became seriously ill, and on March 26, 1827, he died. The life of Beethoven is the life of a great artist who was also great as a man. His genius enlarged thelanguage of music, for his composition speak to the world of the struggles, aspirations and triumphs of the soul. They are deeply emotional and expressing the feelings of all humanity in their beauty. His character was a noble one. People respect him for his great genius and love him for goodness and purity of his soul. Through grief and misfortune he bravely fought a lifelong battle with fate in order to be worthy of his high ideals. He was a man of profound vision and his music had deeply moved its listeners for generations.1.In 1792, ________ was Beethoven's teacher.[ ]A.MozartB.Joan SchenkC.his fatherD.Haydn2.Which of the following is true?[ ]A.He died at the age of 56.B.His parents were both good at music.C.He was not pleased with Haydn's method of teaching.D.In his fifth, Fate, he showed his struggle with the fate of war.3.What's the meaning of the underlined word “offend”?[ ]A.pleaseB.upsetC.interestD.surprise4.In the text, the author mainly tells us about Beethoven's ________.[ ]A.lifeB.musicC.familyD.works•答案:B;C;B;A。
雪莱生平
雪莱生平(1792-1822)Percy Bysshe Shelley was born in 1792, into a wealthy Sussexfamily .The young Shelley entered Eton, a prestigious school for boys, at the age of twelve. While he was there, he discovered the works of a philosopher named William Godwin, in which he became a fervent believer; the young man wholeheartedly embraced the ideals of liberty and equality espoused by the French Revolution. Entering Oxford in 1810, Shelley was expelled the following spring for his part in authoring a pamphlet entitled The Necessity of Atheism.At the age of nineteen, Shelley eloped with Harriet Westbrook, the sixteen-year-old daughter of a tavern keeper. Not long after, he promptly fell in love with Godwin's daughter Mary Wollstonecraft, whom he was eventually able to marry. In 1816, the Shelleys traveled to Switzerland to meet Lord Byron.Then the two men became close friends. After a time, they formed a circle of English expatriates in Pisa.In 1822, Shelley drowned while sailing in a storm off the Italian coast. He was not yet thirty years old.Shelley belongs to the younger generation of English Romantic poets, the generation that came to prominence while William Wordsworth and Samuel Taylor Coleridge were settling into middle age. Where the older generation was marked by simple ideals and a reverence for nature, the poets of the younger generation (which also included John Keats and the infamous Lord Byron) came to be known for their sensuous aestheticism, their explorations of intense passions, their political radicalism, and their tragically short lives.Shelley died when he was twenty-nine, Byron when he was thirty-six, and Keats when he was only twenty-six years old. To an extent, the intensity of feeling emphasized by Romanticism meant that the movement was always associated with youth, and because Byron, Keats, and Shelley died young (and never had the opportunity to sink into conservatism and complacency as Wordsworth did), they have attained iconic status as the representative tragic Romantic artists. Shelley's life and his poetry certainly support such an understanding, but it is important not to indulge in stereotypes to the extent that they obscure a poet's individual character. Shelley's joy, his magnanimity, his faith in humanity, and his optimism are unique among the Romantics; his expression of those feelings makes him one of the early nineteenth century's most significant writers in English.雪莱,(Percy Bysshe Shelley,1792~1822)英国著名民主诗人。
长沙爱晚亭导游词英语
长沙爱晚亭导游词英语爱晚亭,位于湖南省岳麓山下清风峡中,亭坐西向东,三面环山。
始建于清乾隆五十七年(1792),为岳麓书院院长罗典创建,原名红叶亭,后由湖广总督毕沅依据唐代诗人杜牧“远上寒山石径斜,白云深处有人家。
接下来是我为大家整理的关于长沙爱晚亭(导游词)英语,便利大家阅读与鉴赏!长沙爱晚亭导游词英语1AI Wan pavilion was first built in 1792, the 57th year of Qianlong reign of Qing Dynasty. It was founded by Luo Dian, the head of Yuelu Academy, a scholar and educator at that time. In the past, Fenglin was all over Qingfeng gorge, so Luodian named the pavilion Hongye Pavilion, also known as Aifeng Pavilion. Later, the governor of Huguang, Bi Yuan, felt that the scenery there was very suitable for Du Mus poem a trip to the mountains of the Tang Dynasty, so he renamed it Ai Wan Ting.Far up the cold mountain, the stone path is inclined, and there are people in the depths of the white clouds;Park and sit in maple forest at night, frost leaves are red in February flowers.Indeed, in late autumn, the top of Y uelu Mountain is shrouded in clouds and mist, and the maple trees around aiwan pavilion are as red as fire and gorgeous as blazing, which vividly expresses the artistic conception of the poem.At this moment, I can see the panorama of aiwan Pavilion. It sits in the West and faces east, surrounded by towering green mountains and jagged rocks. It is surrounded by streams on the left and right, with mountains, trees, streams and stones flowing.Aiwan Pavilion is a typical Chinese classical pavilion with a sharp top. It has two sets of roofs; it is called double eaves, which is vigorous; its roof adopts four inclined ridges, which is called four drapes, which shows the beauty of being steady and dignified; the sharp roof makes the pavilion have a kind of centripetal cohesion. All of these are the embodiment of Confucianism in ancient architecture, such as emphasizing reason, standing on ones own, emphasizing golden mean and great unification in Chinese traditional culture. At the same time, the eaves angle of the pavilion is concave curve upward, which makes the original heavy and sinking pavilion have a lively and elegant feeling. Together with Danzhu Biwa, Baiyu guardrail and painted caisson, the ancient beauty of this century old Pavilion is fully displayed.Aiwan Pavilion is not only a place of historic interest, but also a holy land of revolution. In his youth, when he was studying and working in Hunan No.1 Normal University, Comrade Mao Zedong often went to aiwanting together with Cai Hesen, Luo xuezan, Zhang kundi and other close friends to point out rivers and mountains, encourage writing, sometimes even all night. Old man Zhou Shizhao, a member of Xinmin society at that time, recalled this period of time. He wrote a poem walking on Shakespeare in autumn, visiting the love Pavilion in the eveningBijian sound Qin, red forest for painting, a mountain autumn more natural and unrestrained. In order to find the past, I went to fangting to pick up yingfengyi school.When you are in the mountains, you are worried about the world. You can count on the hurdles and spend the night. We should write the history from the beginning.Because of this, when the pavilion was rebuilt in 1952, Li Da, then president of Hunan University, asked Chairman Mao to inscribe thepavilion. Chairman Mao happily wrote down the three characters Ai Wan Ting, which is the plaque on the lintel of the pavilion.At the moment, you can see a couplet on the pavilion column: the mountain path is red and comfortable at night, and five hundred young peaches are new; the gorge clouds are deep and green, and a pair of tamed cranes are waiting to be caged. This is the title of Luo Dian, the builder of AI Wan Pavilion. It shows the style of AI Wan Pavilion at that time.长沙爱晚亭导游词英语2Hello, Im Peng Yi, your guide. Welcome to Yuelu Mountain, the scenic spot of Changsha.Yuelu Mountain is located in the West Bank of Xiangjiang River in Changsha City, with a total area of 1 It covers an area of 36 square kilometers. It is a part of Hengshan Mountain, one of the five mountains. There are 72 peaks in Nanyue Mountain, headed by Huiyan peak in Hengyang City, Hunan Province. It is said that the North geese come from the south. From autumn to spring, they no longer fly south over this peak. They just spend the cold winter in this warm place like spring. They wait until spring comes and then go north, so they are called Huiyan peak. Wang Bo, a poet of the Tang Dynasty, wrote a poem in preface to Tengwang Pavilion: the wild geese are frightened by the cold, and the sound breaks the Hengyang river.. As we all know, Hengyang City is known as Yancheng. This is how it got its name. The word Lu of Yuelu mountain means at the foot of the mountain in the ancient Chinese. Yuelu Mountain is named because it is the last of the 72 peaks in Nanyue.Yuelu Mountain is not high in the sea. The highest peak is only 300 meters, but it is very famous. The main reason is that at the foot of the mountain there is one of the four famous pavilions in China, aiwan Pavilion. Aiwanting, formerly known as hongyeting, is also known as aifengting, which is named after the famous poet Du Mu of the TangDynasty who said, stop and sit in the maple forest at night, frost leaves are more red than February flowers. Mao Zedong, a great man of a generation, also had a long history with AI Wan Ting: as early as 1913 to 1921, when he was in the First Normal University of Hunan Province, Mao Zedong often talked with his teachers, friends, elders and revolutionary comrades at the side of AI Wan Ting at the foot of Yuelu Mountain to point out the country, encourage the writing and freely talk about the revolutionary ideal. After the founding of the peoples Republic of China, Chairman Mao wrote Ai Wan Ting in calligraphy at the invitation of President Li Da of Hunan University in 1952. Now, the plaque on AI Wan Ting is Chairman Maos handwriting.Well, have a good time!长沙爱晚亭导游词英语3Dear touristshello everyone!My name is Feng Mingyue. You can call me Xiao Feng. Im glad to be your tour guide. Today Im going to visit Yuelu Mountain with you. Well have a relaxing and happy day.This is Y uelu Mountain, 308 meters above sea level.Now we are at the foot of Yuelu Mountain. Please look at this old house with mossy tiles. It is the famous Yuelu Academy. Yuelu Academy is a bright pearl in the long river of Chinese history and culture. Together with Bailudong academy, Songyang academy and yingtianshu academy, he is known as Chinas four major academies. It has a long history. It was built in 976. Zhu Xi, a famous Neo Confucianist and educator in the Southern Song Dynasty, gave lectures here. Lets continue to look up. This is aiwan Pavilion. Four red pillars, like a pine tree, stand straight in frontof us, supporting the green roof.Look, its like a big tree. It is perfectly combined with the beautiful scenery. On the top of the pavilion, there are three glittering gold characters of aiwan Pavilion.Aiwanting, formerly known as the red leaf iron box, was later renamed as aiwanting because of the famous Tang Dynasty poet Du Mus poem about stopping to sit in the maple forest at night and the frost leaf is red in February flowers. He is also known as one of the four famous pavilions in China. There are many scenic spots in Y uelu Mountain.Lets have a rest. Well visit more beautiful and wonderful scenic spots later. Please pay attention to that. Dont run too far away during the rest. Just rest nearby to avoid the team. Pay attention to safety. Well meet at the gate in 20 minutes.长沙爱晚亭导游词英语4Dear friendsHello everyone! Im glad to accompany you to visit Yuelu Mountain scenic spotYuelu Mountain, located on the West Bank of Xiangjiang River in Changsha City, is the tail of the 72 peaks of Hengshan Mountain. It has been a famous scenic spot since ancient times Although Yuelu is not high, it is indeed a famous mountain with rich cultural heritage. There are 15 places listed as key cultural relics protection units at or above the provincial level. Qingfengxia, aiwanting, Lushan temple, baihequan, caies tomb, Huangxings tomb, Yuwangs tomb, Yunlu palace, Yuelu Academy and other nearly 100 scenic spots are attractive everywhere.Now, I come to Qingfeng gorge, the core scenic spot of Y ueluMountain. Here lush forest, trees into Yin, streams around, three sides against the peak, beautiful scenery in the clip show, intoxicating. From Qingfeng gorge to the top of the mountain, a large number of primitive secondary forests have been preserved, with a total of 977 species of plants, 555 of which are wild seed plants, and exotic flowers and plants can be seen everywhere. At the entrance of Qingfeng gorge, one of the most famous pavilions in China, AI Wan Pavilion, stands high. AI Wan pavilion was built in 1972, the 57th year of Qianlong reign of Qing Dynasty. Its founder was Luo Dian, the head of Yuelu Academy, a scholar and educator at that time. In the past, Fenglin was all over Qingfeng gorge, so Luodian named the pavilion Hongye Pavilion, also known as Aifeng Pavilion. Later, the governor of Huguang, Bi Y uan, felt that the scenery here was very close to Du Mus poem a trip to the mountains and changed its name to Ai Wan Ting. Indeed, in late autumn, the top of Y uelu Mountain is shrouded in clouds and mist, and the maple leaves around aiwan pavilion are as red as fire and gorgeous as blazing, which vividly expresses the artistic conception of the poem.Now, you can see the whole picture of aiwan Pavilion. It sits in the West and faces east, surrounded by mountains and craggy rocks. It is surrounded by streams on the left and right, with mountains, trees, streams and stones flowing in different directions. In his youth, when he was studying and working in Hunan No.1 Normal University, Comrade Mao Zedong often went to aiwanting together with Cai Hesen, Luo xuezan, Zhang kundi and other close friends to point out rivers and mountains, excite and pronounce words, sometimes even all night. When the pavilion was rebuilt in 1952, Li Da, the then head of Hunan University, asked Chairman Mao to write a title for the pavilion. Chairman Mao happily wrote down the three characters Ai Wan Ting, which is the plaque on the lintel of the pavilion.Now you can see that there is a couplet on the pavilion: the mountain path is red and comfortable at night, and five hundred young peaches are new; the clouds in the gorge are deep and green, and a pair oftamed cranes are waiting for the cage. This is the title of Luo Dian, the builder of AI Wan Pavilion. It shows the style of AI Wan Pavilion at that time.When Changsha and Kagoshima became friendly cities, aiwan Pavilion, as a symbol of the ancient city of Changsha, was imitated and built in Japan, thus becoming a messenger of Sino Japanese friendship.长沙爱晚亭导游词英语5Hello, ladies and gentlemen. Welcome to visit aiwan Pavilion.Love evening Pavilion is located at the foot of Yuelu Mountain, that is, you are now in the breeze gorge. Yuelu Mountain is a typical urban scenic mountain. According to historical records: eight hundred miles around Nanyue, Huiyan (in Hengyang City of Hunan Province today) is the leader, Yuelu is the foot. The highest altitude of bixu peak, the main peak of Yuelu Mountain, is only 300.8 meters, and its relative height is less than 200 meters. However, it has a wide area. The main vein is about 4 kilometers long from north to South and 2 kilometers wide from east to west, with a total area of 553.0 hectares. In addition to the surrounding hills, it has a total area of 23 square kilometers.Although Yuelu Mountain is not high, it is a huge natural museum. The whole mountain is covered by forests, and the natural resources are extremely rich. There are 174 families and 977 species of plant species in the region, mainly in the typical subtropical evergreen broad-leaved forest and subtropical warm coniferous forest, and a large area of primary evergreen broad-leaved secondary forest is still preserved in some areas. Ancient and famous trees can be seen everywhere. Luohansong in the Jin Dynasty, gingko in the Tang Dynasty, camphor in the song and Yuan Dynasties, and maple chestnut in the Ming and Qing Dynasties are all vigorous and towering. It is rare for large and medium-sized cities in China to have such rich natural plant resources. According to scientificresearch, one fifth of the oxygen consumption in Changsha City comes from Yuelu Mountain, which shows that Yuelu mountain can also be called the oxygen station of Changsha City.If the mountain is not high, there will be immortals; if the water is not deep, there will be dragons.. Although there are no immortals on Yuelu Mountain, there are many scenic spots. Only 15 of them are listed as key cultural relics protection units at or above the provincial level. The ancient Lushan temple, the deep Yuelu Academy, the clear Yunlu palace, and the strong tombs of Huangxing and caie are all fascinating. But the beauty of Yuelu mountain lies in the love Pavilion you will see in front of you. AI Wan pavilion was built in 1792 in the 57th year of Emperor Qianlong of Qing Dynasty. The founder was Luo Dian, the head of Yuelu Academy at that time. In the past, Qingfeng gorge was full of ancient maple trees. In late autumn, the gorge was full of red flowers. Therefore, the pavilion was originally called Hongye Pavilion or Aifeng Pavilion. When we talk about the present name of Ai Wan Ting, we may think of Du Mus famous poem a journey to the mountains, which is written by the poet of the Tang Dynasty. Park and sit in the maple forest at night. Frost leaves are red in February flowers. Indeed, the scenery around aiwan Pavilion can be said to reflect the artistic conception of Du Mus poem a journey to the mountains incisively and vividly, and the reason why aiwan Pavilion is famous is that it ranks among the four famous pavilions in China, to a large extent, it also benefits from this poem. But dont get me wrong, Du Mus journey to the mountains is not a poem specially written for this pavilion. Du Mu lived in the Tang Dynasty. AI Wan Ting was renamed by Bi qiufan, governor of Huguang in the Qing Dynasty, according to Du Mus poem. However, there is another folk saying about the origin of the pavilion name. It is said that Yuan Mei, a young talent from the south of the Yangtze River, once made a special trip to Yuelu Academy to visit Luodian, the head of the mountain. However, Luodian was already famous all over the world. He didnt want to see such a rising star at all. Y uan Mei turned around and went up the mountain without saying a word. On Yuelu Mountain, Yuan Cai Zis poetry flourishedDafa saw a scene and wrote a poem. Only when he arrived at the red leaf Pavilion, he only copied Du Mus poem a journey to the mountains and left out two words. The last two sentences were copied as: stop and sit in the maple forest, frost leaves are red in February flowers. When Luo Dian heard about it, he went up the mountain with it. Along the way, he saw Yuan Meis poems, full of talent and praise. When he arrived at the red leaf Pavilion, he understood them all at once: This is changing the way to say that I dont love late and dont care for the younger generation. Come on, lets change the name of this pavilion to aiwanting. Thus, the red leaf Pavilion became the love evening Pavilion.Legend belongs to legend. When it comes to the scenery, aiwan Pavilion is worthy of being a unique scenery of Yuelu Mountain. There,in spring, the mountains are green; in summer, the moon is bright and the wind is clear; in autumn, the forests are dyed; in winter, the snow is white. At this moment, we have been able to clearly see the whole picture of this world famous Pavilion. The pavilion faces east from the west, with mountains on three sides and maple leaves on all sides. It is surrounded by streams on the left and right. There are grotesque rocks in front and behind, with mountains, trees, streams and stones flowing.For AI Wan Ting, one word can be used to describe it ancient. AI Wan pavilion has both ancient shape and ancient meaning, and is good at ancient taste.Lets talk about ancient forms first. This is a typical Chinese classical garden pavilion. It is built with double eaves and four pinnacles. Double eaves means two sets of roofs, which makes the pavilion vigorous and natural; four drapes means four bevels, which makes the pavilion dignified and dignified, square and bright; the sharp roof makes the pavilion have a centripetal cohesion. All of these are a manifestation of Chinese traditional culture, especially the reflection of the thought of stressing reason, standing up and unification in Neo Confucianism culture.AI Ting Ting has condensed many essences of Chinas traditional culture, and it is difficult for the weird people to visit them. The eaves angle of the pavilion is inverted concave curve and tilts upward, which makes the original heavy and sinking Pavilion top have a lively and elegant feeling. In addition, its red pillars, green tiles, white jade guardrails and painted caisson all reflect the ancient beauty of this century old Pavilion.Lets talk about its ancient meaning. Ancient Chinese architecture attaches great importance to Feng Shui, that is to say, Yin Yang and five elements, which is also reflected in AI Wan Pavilion. Aiwanting is backed by bixu peak, the main peak of Yuelu Mountain. There is a ridge winding down on the left and right, and in front of it, you can see the surging water of Hunan. This terrain is in line with the traditional layout of left green dragon, right white tiger, rear Xuanwu, front rosefinch. Besides, it is surrounded by mountains on three sides, with luxuriant trees, which belong to trees; the stream encircles the banmiao fangtang, which belongs to water; the pavilion sits in the West and faces the East, with the morning light, which belongs to fire; the pavilion stands high on the earth mound, with strange stones, which belongs to earth. In the five elements of gold, wood, water, fire and earth, there is only gold missing, so the pavilion is painted with red lacquer, and the five elements are complete, which is very lucky.The most important thing is the ancient taste of aiwan Pavilion. There are many anecdotes around the pavilion. The story of Luo Dianqu changing the name of the pavilion mentioned above is an example. Of course, its just a legend, but its true that Chairman Mao visited here frequently in those years. Comrade Mao Zedong studied and worked in Changsha for 10 years from 1913 to 1923. In his 10 years of life, young Mao Zedong took his best friends Cai Hesen, Luo xuezan, Zhang kundi and others to tour the Xiangjiang River many times and climb the Yuelu Mountain, where he pointed out the rivers and mountains and encouraged the writing. On the one hand, he exercised his body, on the other hand, he explored the truth, and at the same time, he enhanced the friendship千里之行,始于足下。
音乐风格类型大全
All kinds of music styles:1. Classical music 古典音乐Classical music was the music of European courts(欧洲宫廷)and big concert halls. Classical music refers to orchestral (管弦乐的)music of the 18th and early19th century. Beethoven and Mozart (莫扎特)are two of the most famous classical composers(作曲家).2. folk music 民族音乐Folk Music, the music with which the people of a nation or an ethnic(种族的) group most specifically identify(区别) themselves. Folk music is most commonly the music of the socially and economically lower classes(阶级,阶层).3. jazz 爵士乐Jazz has been called “the art of expression set to music”, and “ America’s great contribution to music”. What made Jazz different from the other earlier forms of music was the use of improvisation(即兴创作). Louis Armstrong was considered as the most successful musicians of Jazz and later one of the biggest stars in the world.4. pop / popular music 流行音乐5. rock "n" roll 摇滚乐Rock 'n' roll &rock-and-roll: a form of popular music arising(产生,出现) from and incorporating (合并) a variety of musical styles, especially rhythm and blues, country music, and gospel(黑人福音音乐). Elvis Presley (猫王)and the Beatles(披头士)were the big names of rock ‘n’roll.6. blues蓝调音乐Blues started off as the music of African slaves(非洲奴隶)brought to the United States. It is closely related to the music of West Africa. In many ways, blues music is an important element (元素)in many of today’s popular tunes (流行曲子).7. R&B (HIP-HOP) 节奏蓝调8. RAP 说唱9. Country Music乡村音乐What is your favorite kind of music? Do you like jazz.popular music or folk music? I think different people have different answer .My father and I like the different music.As a young man.I like the popular music very much.I think this kind of music represen t passion and vitality .My father don’t think so .He likes the classic music.He thinks this music is elegant He said if the classic music is your favorite music,that represent.you have a good taste.Above all ,music is called a universal lauguage.It speaks a special word can make up us feel joy and exaitation.No matter what kinds of music do you like ,you just need to appreciate it .Love music ,Love life .What is your favourite music?Do you like jazz.popular music or folk music?I think different people have different answers. As a young man.I like the popular music very much.I think this kind of music represent passion and vitality .My father doesn't.He likes the classic music.He thinks this music is elegant .He said if the classic music is your favorite music,you have a good taste. Above all ,music is called a universal lauguage.It can make us feel joy and exaitation. No matter what kinds of music do you like ,you just need to appreciate it .Love music ,Love life .初二Unit 21 She taught herself. Lesson 82Step 1 Revision1 Check the homework.2 Revise words about music: rock band, pop, concert, singer, Beatles, piano, violin, etc.Step 2 Pre-readSB Page 32, Part 1. In small groups have the students discuss the questions. Students may get some information from Notes to the texts at the back of the Students‘ Book. Then ask What kinds of music do you like? If you have tapes of different music, play some and discuss what kinds of music they are, and what the students like and dislike about the different types of music. Some examples of music that can be found in China are pop music, both Chinese and Western, classical, rap (吟快板, a type of rhythmic talk ing, which is accompanied by music), rock’n roll, folk music, both Chinese and Western, jazz and blues, etc. If you know someone, or you yourself can sing well, invite them to sing some songs that are of different kinds of music.Step 3 Presentation1 Play a tape or CD of some music by Beethoven. When playing the tape, have the students close their eyes and feel the music. Then discuss what they felt, i.e. happy, sad, comforting, etc.2 Talk a little about Beethoven. He was born on Dec. 16, 1770 in Bonn, Germany. He was a child prodigy who became a great composer and musician. His father died when he was only eighteen years old. From that time on he had to provide for himself and his two younger brothers. To do this, he played the viola in an orchestra. In 1792 Haydn, a famous composer at the time, saw Beethoven perform and realized he was a very talented musician. He asked him to come to Vienna, Austria with him and study under him. Beethoven did, and became a great composer. His music was filled with his own emotions which created a new style of music at the time. His Moonlight Sonata was actually written for his love of Countess Giulietta who refused to marry him. Later on in his life, Beethoven became deaf and had to compose his music entirely in his head without ever hearing a note of it himself. He died on March 26, 1827.Step 4 ReadingSB Page 32, Part 2, Speech Cassette Lesson 82. If available, play a song from Beethoven quietly while the students read the text silently to themselves (It has been proven that playing classical music while studying helps one to take in more information). Then say Tell me something about the girl in the story. (She could play the piano well, she was blind and taught herself to play, etc. ) Give the students a few minutes to scan for the information about the girl. Then play the Speech Cassette and have the students listen and repeat. Teach the new vocabulary through context: poor, knock, knock at, pardon, shine, bright, brightly and through. Do Wb Lesson 82, Ex. 1.Step 5 Workbook Wb Lesson 82, Ex. 2. Students individually write a letter. Then give the letter to their partner to look over and get feedback from them.Homework Make the changes in the letter from Wb Lesson 82, Ex. 2 that the partners suggested. Revise the new vocabulary from this unit.2. Music and readingDo you like music? (Why? What kind?/Why not?)Is music important to you? (Why?/Why not?)When do you listen to music?In what ways does music affect people?Compare the music that young people like and the music that old(er) people like.Do you play any musical instruments?Do you think it's important for children to learn (to play) a musical instrument?What kinds of things do you like reading?What types of book do you dislike reading?Why do some people dislike reading?Do you think reading is important? (Why?/Why not?)What is the function of (the purpose of) readingDescribe a kind of music. You should say:Whether you like music or not.What kind of music you like most.What role music plays in people's lives.1.a) If I had to describe a kind of music that I like, I would say that it is pop music.b) I am sure you are familiar with that kind of music2.a) I like music very much.b) That is to say, I cannot imagine what my life would be like without music.3.a) I believe music plays an important part in people's lives. b) For example, we can use it to sooth our minds after a hard day at work, or it can provide us with the rhythm to dance to.There are several reasons as for why I would like to talk specifically about pop music. Allow me to explain bymentioning some of them briefly.4.a) First of all, pop music is lively, and suits me at my age.b) What I mean to say is that us youngsters like to listen to music that fits in with the way we feel5.a) Secondly, usually has a good rhythm.b) For instance, it is suitable for us to dance to in the nightclubs.6.a) Lastly, pop music is simple to understand. b) That is to say, I like it because it does not have complicated lyrics, and it helps me to relax after I have been studying hard for some time.7. So, those were some thoughts on my favorite type of music.喜欢所有音乐,小时侯弹过四年电子琴,所以一直对古典情有独衷;后来迷上欧美乐坛,BSB,BOYZONE, WESTLIFE,911,TAKE THAT,98DEGREE,SPICE GIRLS,等等等等,流行的基本都听过,CHARLOTTE CHURCH,BOYZ II MEN,BON JOVI,SCORPIONS,SUEDE.LP等等,各方面的音乐我都有涉及,那几百张CD就是证明,当然因为从古典起家,所以还是喜欢旋律好的,歌词基本不细听,但象BSB的我基本每首都会唱直到现在依然喜欢后街男孩的歌,我觉得那就是流行乐的颠峰了,BLACK AND BLUE,MILLENIUM,这是我听过的最好的专辑.直到最近两年才开始听国内港台的歌,主要是因为买了MP3,没事BAIDU一下,随便下几首,所有主流的基本都听过,而且因为有音乐基础,所以基本听过一遍就能记住旋律,至少不会跑调。
统考大学英语B试题库阅读理解
第二部分阅读理解(2)(2013 年网考)全翻译版新大纲9 套模拟题18 篇阅读理解(必考一篇)。
Passage 1The French Revolution broke out in 1789. At the time France was in a crisis. The government was badly run and people’s lives were miserable. King Louis XIV tried to control the national parliament and raise more taxes. But his effort failed. He ordered his troops to Versailles. The people thought that Louis intended to put down the Revolution by force. On July 14,1789, they stormed and took the Bastille, where political prisoners 1792 to get support from Austria and Prussia. However, he was caught and put in prison. In September 17were kept. Ever since that day, July 14 has been the French National Day. Louis tried to flee the country in 92, the monarchy was abolished. In the same year, Louis was executed. A few months later his wife, Marie also had her head cut off. The Revolution of France had frightened the other kings of Europe. Armies from Austria and Prussia began to march against France. The French raised republican armies to defend the nation. The Revolution went through a period of terror. Thousands of people lost their lives. In the end, power passed to Napoleon Bonaparte. (190 words)法国大革命于 1789 年爆发。
TEA1795T芯片规格 (2)
Rev. 3 — 29 January 2014
2 of 13
NXP Semiconductors
TEA1792TS
GreenChip synchronous rectifier controller
6. Pinning information
6.1 Pinning
SRSENSE
1
6
DRIVER
GND
The TEA1792TS is intended for adapters. The device can also be used in all other discontinuous conduction mode systems and quasi-resonant flyback systems that demand a highly efficient and cost-effective solution.
4 of 13
NXP Semiconductors
TEA1792TS
GreenChip synchronous rectifier controller
VSRSENSE 0V Vdeact(drv) (-12 mV typ.) Vreg(drv) (-42 mV/-30 mV typ.) Vact(drv) (-220 mV typ.)
2.2 Green features
Low current consumption High system efficiency from no load to full load
2.3 Protection features
UnderVoltage Protection (UVP)
3. Applications
乔治华盛顿英语简介
乔治华盛顿英语简介 乔治·华盛顿,美国杰出的资产阶级政治家、军事家、⾰命家,美国开国元勋、国⽗、⾸任总统。
下⾯是店铺为你整理的乔治华盛顿英语简介,希望对你有⽤! 乔治·华盛顿简介 George Washington (February 22, 1732 - December 14, 1799), the United States outstanding bourgeois politicians, military strategists, revolutionaries, the founding fathers of the United States, the father, the first president. 1775 to 1783 American War of Independence when the Continental Army (Continental Army) commander in chief, 1787 presided over the Constituent Assembly. The meeting developed the current US Constitution. In 1789, he became the first president of the United States (which became the first president of the world to be the "president"), and in the successive elections, Have won all the electoral groups without objection support, has served as president until 1797. He has set up many policies and traditions that have continued into today's term. At the end of his two terms, he voluntarily waived his power to no longer seek to succeed. Washington, as the most important role in the American War of Independence and the founding of the country, was known as the "father of the United States", also known as "the father of the United States." The scholars tied him to Abraham Lincoln, Franklin Roosevelt as the greatest president in American history. George Washington was rated by the American authoritative journal "Atlantic Monthly" as the second of the 100 characters in the United States. 乔治·华盛顿为政举措 Build the United States From 1775 to 1781, Washington led the army to fight the mighty British army. In this war of independence, Washington chose the right strategy, as the Roman general Fabius Maximus (Fabius Maximus) in the second Punic War strategy (Fabry strategy), continued to delay the enemy Will be able to make the British as Hannibal then, "attacked the door" but "no door into the door." Soon the British will understand that continuing to fight is just a waste of resources, they can only pursue the US military melee, but can not completely capture the main US military. At the same time, Washington took the opportunity to attack. In 1776 he regained Boston in 1776, despite his defeat in the subsequent battle of New York and the battle of Long Island, but he persevered in the struggle, and at the end of 1776 and early 1777, Terenton and Princeton were Victory. In October 1777, under his command of Horatio Gates and Benedictine Arnold led the North American Army in Saratoga to Bai Gao Ying led the 5000 British soldiers surrounded and captured the United States, the war of independence. Finally, in 1781, Washington personally led the army to Kang Weili (also translated Charles Convorius) generals of the British forces around the town of York. Under the attack of the United States and France, in October 1781, General Kang Wally and 7,000 British troops surrendered to the US military. The victory was the most glorious moment in Washington's career, and the end of the war on the North American battlefield - the North American people won the final victory. The victory on the battlefield accelerated the independence of the United States, such as the recovery of Boston to promote the adoption of the Declaration of Independence. But Washington is not just a war of war. He is well aware that the war will win through diplomatic channels, rather than relying on the soldiers. York town after the victory over two years, after diplomatic negotiations, the United Kingdom finally admitted that the United States independent, meritorious Washington choose to retreat. However, the newborn American faces many difficulties. As a confederation country, the United States of America is only a loose alliance of 13 states. 176 years of Xie Division uprising finally shook the ruling group, they invariably recognize the need to strengthen the central power and urgency. In this way, in Washington in 1787, again, as the chairman of the Constituent Assembly presided over the development of the "Federal Constitution", established a real national government, after the "Confederation" under the loose alliance has finally become a veritable country. Create a regime Set up cabinet In 1789, Washington's outstanding merit made him elected as the first president of the United States. April 30, Washington in the United States was the temporary capital of New York sworn in. After eight years of war and eight years of political turmoil in the United States, the problem is difficult, and the federal government must create its own institutions. Washington has made the liberal and conservative in the cabinet to maintain a balance, so that the various regions of the country, the interests of political groups in the government can be a balanced reflection. In the cabinet, Washington relies heavily on the talented, savvy Hamilton. Hamilton actively boldly proposed a series of ambitious plans to restore the economy, develop industry and trade, and stabilize credit. In Washington, the support and intervention were put into practice: the sinking fund law, the federal government to repay the wartime public and private debt; banking law, in accordance with the British Bank of England as a model in the United States to establish a national Bank of the United States to consolidate the country Credit, stable currency, active national economy. As well as domestic tax law, cast silk and tons of tax laws and so on. He also established the presidential veto system in his first term, perfecting the presidential system. Washington's first term is calm and remarkable. He established the government agencies of the United States of America, and the government was on track and made great achievements. In Washington, when he entered his second term, the Cabinet disagreed, the party was intensified, and Jefferson and Hamilton, the main members of the cabinet, made resignations. Perfect justice During the first term in Washington, the first ten amendments to the Constitution, which were known as the Bill of Rights, were approved. According to the judicial law of 1789, the third department of the US government, the Supreme Court, was established, and New York State conservative John Jay was appointed Chief Justice in Washington. As the first president, Washington appointed almost all Supreme Court judges, the same number was only served by as long as four (1933 - 1945) Roosevelt had arrived. In this way, the formation of the Supreme Court, coupled with the birth of the first Congress, the US federal republic was really established. In Washington, some states joined the federation, so that the federal system was promoted. The state was joined by North Carolina (1789); Rhode Island (1790); Vermont (1791); Kentucky (1792); Tennessee (1796). foreign policy In 1793 April, Britain and France to open the war, Washington adopted a neutral policy, which was attacked by kinship, pro-law leader Jefferson resigned from the duties of the Secretary of State. Washington's neutrality policy is not only resentful of dissatisfaction with France, but also by the British challenge. The US-ROK relations have deteriorated sharply, and Congress has made preparations for war, while Washington's goal is to avoid a war with Britain. In April 1794, Washington, the main member of the pro-British faction, the Supreme Court Chief Justice John Jay as envoy, went to Britain to negotiate. In November the same year, signed the "Jay Treaty". "Jay Treaty" to ease the US-British relations, the preservation of peace, to ensure the integrity of the western United States territory, and laid the foundation for the expansion of the United States to the west. In addition, he also signed a declaration, declared "strict neutrality" policy, so as to avoid the United States involved in the European war. Sign the bill The signing of the Judiciary Act of 1789, also known as the Constitution of 1789, is a law establishing the federal court and the Supreme Court system. Signed the Indian Intercourse Acts, which stipulated that the Great Plains of Nebraska was land for the Indians and entered into force in 1790. Signed the "Residence Act of 1790", Philadelphia, Pennsylvania as a temporary capital of the federal government. Signed the Bank Act of 1791, issued a permit to the North American bank, making it the first modern private commercial bank. Signed the "Coinage Act of 1792", which stipulates the American coin coinage standard. Signed the Fugitive Slave Act of 1793 to mediate legal disputes between the two states of Pennsylvania and Virginia for a kidnapping case. Signed the Naval Act of 1794, founded the US Navy. Signed the Land Act of 1796, which was completed at the last minute of his tenure. Peaceful transfer In his second term, Washington will no longer accept the request of him as the third president. On September 17, 1796, Washington published his famous "farewell words", summed up his political experience of his life, and made wise and earnest advice to his compatriots. He called on the whole country to maintain unity, cherish the federal, abide by federal law, obey the election results. He opposed the will of a party to replace the will of the country, he warned that the party struggle will lead to the division of the country. He warned his fellow citizens to be free and friendly with all the nations, and treat all nations with upright and impartial feelings. He firmly stated that our "real policy is to avoid a permanent alliance with any part of the foreign world, and that the trust can only be temporarily aligned to cope with the particularly urgent situation." These warnings of Washington, and later became the rulers of the United States Policy on the pursuit of the standard, the subsequent political life of the United States has a very significant impact. On March 4, 1797, Washington handed over power to his successor, John Adams, to create an example of the supreme power of peaceful transfer in this new kingdom, which was followed by successive presidents. He chose to give peace to the presidency to John Adams. Opened the presidency of the President of the United States generally no more than two sessions. Washington has set a lot of precedents for the future of the United States, and the president's no more than two precedents are seen as a very important influence on Washington. It is fortunate that the United States has a man of both virtue and integrity in Washington as the first president. Looking at the history of the countries of South America and Africa, we can see that even a new country with a democratic constitution at the beginning, it is easy to fall into a military authoritarian state. Washington is a firm leader who maintains the unity of the state, but he does not have the ambition to dominate the regime forever, neither the king nor the dictator. He pioneered the initiative to give power - a precedent that the United States still pursues.。
美国内战战争过程英文版
Intermediate stage
So in this stage, he commanded the North Virginia army continued to initiate an attack. But his strategy has great limitations: one is attaching too much importance to the battlefield in the eastern, underestimating the strategic value of the west line to the survival of the south . The union is concentrate on the West battlefield to forced the South into the collapse of the wall. The second is not taking into account their own human limitations and logistically difficult.
The main process of the civil war
Initial period Intermediate stage Later period
Main battles
① the battle of Bull Run The Union was beaten. ② the battle of Chancellorsville the Union forces suffered a severe defeat. ③ the battle of Gettysburg The Union forces won a great victory at Gettysburg and this greatly encouraged the Union army. ④ the battle of Mississippi The Union forces won an almost uninterrupted series of victories.
wordsworth
Life
Main
works and their appreciation Characteristics Further readings
William Wordsworth
出生后,我们只是在睡眠和遗忘;与我们俱来的灵魂,这生之 星辰,已落下在别的什么地方,现在又向我们走近;我们并不 是完全地忘却,并不是抛却所有的一切,而是追随模糊的光辉, 从上帝,从我们那家园来到这里。
Appreciation of I Wandered lonely as a cloud (i)
The poet puts himself in the position of a single cloud drifting over the never ending hills of rolling daffodils He also puts himself in the position of solitude The last stanza of the poem reveals that he is lying on a couch and visualizing the daffodils, which brings him serenity and joy. In the poem Wordsworth comments on the pleasure obtained from solitary contemplation. His use of the word “lonely” is positive. In the first stanza there is a comparison between the poet and cloud which suggests laziness and freedom.
第二次大陆会议 英文
From May 10,1775 , the activities of the Second Continental Congress lasted until it was replaced by the parliament of a nation on1781,March 1. But many people still called it continental congress. This congress have the most important influence for American.
In the Second Continentf the Virginia delegates, was elected Commander in Chief of the Continental Army. And the United States of America was founded on 1776,July 4, representing the 13 British colonies, adopted the Declaration of Independence.
The Second Continental Congress
Background Content Influence
In Sep.1774,representatives from all the colonies except Georgia held a joint meeting in Philadelphia to decide on united action against the British. This was the First Continental Congress. At the meeting the majority of representatives still thought they could settle their quarrel with the British goods, hoping in this way to force the British Government to give in to their demands. They also agreed to raise a volunteer army to protect the colonies if Britain used force to break the boycott.
巴黎导游词英文(通用18篇)
巴黎导游词英文(通用18篇)巴黎英文篇1Paris, France (Paris) - the heart of the fashion capital of the French, the hometown of the world of fashion, romantic, one of the most prosperous city in the world. In urban communities in Paris, everywhere can see the museums, theatres, gardens, fountains and sculptures, cultural environment is very good. Paris is the city of art, and previously the capital for flowers. Whether it is in the room, balcony, yard, or in the shop window... Before and on the side of the road, there are flowers blooming everywhere, everywhere, all the charming fragrance. As for the colorful flower blossoms and parks, but also often let people stop viewing, linger. to watch the tour Eiffel Tower in Paris, star/square arc DE triomphe, the Louvre museum and the Louvre museum, Notre Dame DE Paris, champs elysees, the Seine, Fontainebleau palace, Versailles palace, etc.Arc DE triomphe remain famous arc DE triomphe by Roman period, it is located in Paris at the end of the champs elysees, Charles DE gaulle star the center of the square, is the largest of more than 100 European arc DE triomphe. This bridge was built in honor of napoleon's expedition, there are four positive relief - the "marseillaise", "victory", "resistance" and "peace". This is one of the most attractive on pillars of for rural street on the right side of the "1792 volunteers expedition", known as the "marseillaise" glyph, occupy the important position is the world's art history of the immortal masterpiece. Notre Dame DE Paris, arc DE triomphe in Paris because of the adaptation of the classic novel with the same name and opera, not how many people are against the church and the hunchback Quasimodo feel strange.This classic gothic church is located in downtown Paris, France, is the west dike landmarks on the island, also is the Catholic archdiocese of Paris cathedral. To Notre Dame DE Paris, the best from the church of the north gate to enter, entered the three roses can bump into gorgeous picture window.The shops on both sides of the Notre Dame DE Paris is also very famous, you can buy a lot of nice souvenir, the most popular is a kind of version: into a 2 euro COINS, it will spit out a new COINS, its design is the virgin el nino. Notre Dame DE Paris, the Louvre, it may be the world's most famous museum and art gallery, and France's oldest palace. Related to the Louvre movies such as "the phantom of the Louvre. Here includes sculpture gallery, painting and the ancient Egyptian art museum, one of the most famous, including the Minos Venus, goddess of victory, and "Mona Lisa" and so on. Feeding out many world famous art here. Of course is more regular visitors here as viewing the palace of fine arts of the world.巴黎导游词英文篇2The French capital Paris is one of the top ten cities in the world. It is located in the middle of the basin in northern France in Paris, the city across on both sides of the Seine. There are small points of Paris, a greater Paris. Small Paris in Paris city within the big ring road, covers an area of 105 square kilometers, population of more than 200; A greater includes seven provinces around the city, an area of 120xx square kilometers and a population of about 10 million, almost one 5 of the population. Is the largest city in France, it is also one of the world's most populous metropolis.Paris celebrates its 1400 years of history, the city has 20xx years of history. People roaming the city, is one of the mostprofound impression: it retains much of the world famous historical monuments, and there are many magnificent modern buildings, there are "flowers" laudatory name.Paris is France's political, economic and cultural center. In terms of cultural facilities, Paris has built the world's largest with electronic computer control of modern art and cultural center - pompidou national center for art and culture, also has many world famous monuments and artistic construction. Like the Eiffel Tower, the Notre Dame DE Paris, place DE la Concorde, the Louvre, Versailles palace, is to let people regretted leaving. The economic life, reconstruction and rebuilding the old central business district, such as the construction of the 210 meters high, 58 layer of manas skyscrapers. Construction and expansion of the satellite city of Paris around, make people have a more spacious and comfortable living environment.Paris is not only the political, economic and cultural center of France, and is also an important part in international activities. The various types of international conference held here; Various international competitions, performances held here; Professional exhibition from all walks of life held here. Permanent international organizations are also many, such as the headquarters of the United Nations educational, scientific and cultural organization is based in here.Today in Paris, France is not alone, but also Western Europe's political, economic and cultural center, is the world's attention. 巴黎导游词英文篇3"Je t 'aime, Paris!" Paris, prehistoric burial at sea level under the land, in the city of more than 20xx years later, the name will not let anyone strange. Huadu, the world famous historical and cultural city known as the city of light, romantic, fashion, food ofall... Maybe you just want to go to the avenue montaigne likes shopping, maybe just want to take a walk to the river Seine, maybe you just want to go to Michelin restaurant taste French dinner, on the left bank may just want to drink coffee, maybe you just want to go to the Louvre to see the Mona Lisa smile... Maybe the earth only Paris can satisfy everyone's expectations.Paris from the earliest channel island, on the left bank to the river Seine is divided into the right bank, after several expansion, Paris now has "small Paris" and "greater"; Refers to the small Paris is divided into 20 downtown district of Paris, the French population "Paris" and indicated in the address of "Paris" generally refers to the Paris city, zip code for the 750 , most of the attractions such as the Eiffel Tower, the Louvre, Notre Dame DE Paris located in Paris, attractions relatively concentrated, so walking is a good choice. The greater is the small plus around Paris suburb of seven provinces of Ile DE - France (French island district), there are many worthy to place, such as the palace of Versailles, Fontainebleau, Disneyland, etc.Once backpackers in Opera (Opera house), with the gradual rise of land price in Paris, has various levels of tourists all over Paris any corner of the left bank and Montmartre became to be bestowed favor on newly. Developed and convenient public transport is the first choice for travel, ride a bike or walk is also a good idea. In an urban area, drive is definitely not a good choice, the Paris government environmental protection very discouraged road trip to Paris.巴黎导游词英文篇4大家好!我是你们今天的导游——林导,大家可千万不要叫我领导哦!我只是姓林的导游,哈哈!Everybody is good! I am your tour guide, guide Lin today,you don't call me leadership oh! I just named Lin tour guide, ha ha!我们今天要前往名胜古迹——故宫。
美国内战爆发的英语作文
The American Civil War, a pivotal moment in the nations history, was a conflict that tore the country asunder and left indelible marks on the collective consciousness of its people. As a high school student delving into the depths of this tumultuous period, Ive come to understand the complexities and the profound impact it had on the United States.Growing up, I was always fascinated by the stories of valor and the harsh realities of war that my grandfather would recount. He had a particular interest in military history, and the Civil War was no exception. His tales painted a vivid picture of a nation divided, of brothers pitted against brothers, and of a struggle for freedom and unity that would shape the countrys future.The war began in April 1861, sparked by the secession of the Southern states from the Union and the subsequent attack on Fort Sumter. This was not just a war over territory, but a war of ideologiesbetween the Norths industrialized economy and the Souths agrarian society, which relied heavily on slave labor. The issue of slavery was at the heart of the conflict, with the North advocating for its abolition and the South fighting to preserve it.What struck me most about the Civil War was the sheer scale of the devastation it wrought. The war lasted four years, from 1861 to 1865, and resulted in the deaths of approximately 620,000 soldiers and an untold number of civilians. The numbers are staggering, and they serve as a stark reminder of the cost of conflict.One of the most significant battles of the war was the Battle of Gettysburg in 1863. This threeday engagement was a turning point, not just for the war, but for the nation. The Unions victory there marked the beginning of the end for the Confederacy. The battlefield is now a national cemetery, a place of reflection and remembrance for those who gave their lives in the fight for a more just society.The war also saw the emergence of Abraham Lincoln as a transformative leader. His Emancipation Proclamation in 1862 declared slaves in Confederateheld territory to be free, and it was a significant step towards the abolition of slavery. His Gettysburg Address in 1863, a mere 272 words, encapsulated the ideals of human equality and the sacrifices made by the soldiers who fought for those ideals.The Civil War was not just a military conflict it was a social and political upheaval. It led to the end of slavery with the 13th Amendment in 1865, and it paved the way for the 14th and 15th Amendments, which granted citizenship and voting rights to former slaves. These amendments were a monumental step towards civil rights and equality in the United States.However, the aftermath of the war was not without its challenges. The Reconstruction Era that followed was a period of rebuilding and reintegration, but it was also marked by racial tensions and the rise of groups like the Ku Klux Klan, which sought to undermine the progress made during the war.Studying the Civil War has given me a deeper appreciation for thecomplexities of history and the resilience of the human spirit. It has also highlighted the importance of understanding and learning from the past to build a more equitable and just society.In conclusion, the American Civil War was a defining moment in our nations history, one that tested the very fabric of the country. It was a time of great suffering and loss, but also of great courage and transformation. As I continue to learn more about this period, I am reminded of the power of unity and the enduring quest for freedom and equality.。
比利时历史之拿破仑战争时期的比利时_中英对照
比利时历史之拿破仑战争时期的比利时Belgian History During the Napoleonic Wars Belgium, a landlocked country in Western Europe, has a rich and intricate history that spans centuries. One significant period in its past is the Napoleonic Wars, an era that left indelible marks on Belgium's political, cultural, and social landscape. Let us delve into this fascinating chapter of Belgian history.比利时,这个位于西欧的内陆国家,拥有丰富而复杂的历史,其历史跨越了数个世纪。
其中一个重要的时期就是拿破仑战争时期,这个时代给比利时的政治、文化和社会面貌留下了不可磨灭的印记。
让我们深入探索这段引人入胜的比利时历史篇章吧。
At the outbreak of the Napoleonic Wars in 1803, Belgium was still part of the Austrian Netherlands under the rule of Holy Roman Emperor Francis II. However, France's rising ambitions soon threatened this arrangement, as Napoleon Bonaparte eyed the strategic location of Belgium with envy. In 1805, France invaded and annexed the region, renam ing it the Département des Bouches-du-Rhin et du Moselle (later renamed Department of the Meuse) and incorporating it fully into the French Empire. 在1803年拿破仑战争爆发之际,比利时仍然是神圣罗马帝国皇帝弗朗茨二世统治下的奥地利尼德兰的一部分。
The-American-Revolution-1775—1783
2、 The fight begins
Shot of Lexington heard round the world,1775年4月,一支企图突袭民兵军 火库的英军在波士顿附近的来克星顿同民兵交火。从此,北美殖民地人民争取 独立的战争开始了。 Battle for Bunker Hil on June 17,1775. The king officially declared the colonies in rebellion, a proclamation that was tantamount to a declaration of war. The colonials saw the British movtive for war as one of annihilation.
军需品充足
第4页,共17页。
物资奇缺
However, the colonists were able to take advantage of certain British weakness.
The French step in—— This proved to be a turning point in the fight for independence and opened the doors for an American victory.
第7页,共17页。
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. --That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, --That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness.
Escape!快逃!
Escape!快逃!作者:Frederick Marryat来源:《疯狂英语·新悦读》2024年第04期作者簡介:弗雷德里克·马里亚特(Frederick Marryat),1792年7月10日出生于伦敦,1848年8月9日逝世于英格兰诺福克郡的兰厄姆,英国海军军官,小说家,狄更斯的友人,被誉为“海洋小说的先驱”。
马里亚特在14岁时加入了英国皇家海军,并在世界许多地方服役,以卓越的表现而闻名,直到1830年退役时,他已获得上校军衔。
随后,他开始创作一系列冒险小说,这些作品以清晰直接的叙述风格和源源不断的幽默情节著称。
他还创作了许多儿童读物,其中《新森林的孩子们》(The Children of the New Forest)讲述了英格兰内战的故事,是儿童文学的经典之作。
作品简介:1647年,贝弗利家的四个孩子——爱德华、汉弗莱、艾丽斯和小伊迪丝——正藏在新森林里。
这时,英国国王正被关在狱中,全国各地都在打仗——克伦威尔的人和国王的人打仗。
而如果你是支持国王的,你可就极度危险了。
孩子们的父亲为国王作战时牺牲了,他们的母亲也死了,克伦威尔的士兵烧了他们的家,他们没有钱,没有食物,什么都没有了。
但是他们有一个真正的朋友——老雅各布·阿米蒂奇。
现在,在老雅各布的帮助下,他们必须学会靠土地生活——学习在森林里猎食,学习种菜,学习喂猪、养鸡。
但是到处都是克伦威尔的人,孩子们永远不能说出他们姓贝弗利。
本文节选自《新森林的孩子们》第一章节,节选时有删改。
One day in November 1647, JacobArmitage hurried through the New Forestto the house of Arnwood.“You must leave this house immediately,”he said to Edward Beverley.“Come with me to pack your things. Youmust come to my home and stay there.”“But why, Jacob?” Edward asked theold man“. Why?”“The King has escaped from his prison at Hampton Court,” Jacob explained.“Hes riding south through theforest, and Cromwells soldiers are searchingfor him. And Ive just heard a group ofsoldiers in the forest—they were talkingabout Arnwood. They know that your fatherwas the Kings friend, and theyre planningto burn Arnwood tonight,because theythink the King is hiding here.”“Burn Arnwood! They cant do that!Its my house, and Im staying here!”Ed ward said angrily. He was fourteen yearsold, the oldest of the four Beverleychildren.The Beverley children lived alone atArnwood, with an old woman who did thecooking and all the work of the house.Their father, Colonel Beverley, was killedwhile fighting for King Charles ⅠatNaseby in 1645. Before he left home, heasked Jacob, a poor forester who lived nearArnwood,to look after his family. Jacobknew the family well and was happy to dothis. And when the childrens mother dieda few months later, Jacob came every dayto visit the children and to help them.“My dear boy,” Jacob said,“ rememberyour sisters and brother. The soldierswill shoot them, or burn them in the house.No, no,you must all come with me.”In the end, Edward agreed. He andhis brother Humphrey, who was twelve,packed their things. Then they put themon Jacobs horse, White Billy, who waswaiting outside.Jacob told Alice, who was eleven, andEdith, who was eight, that they were goingto visit his home in the forest. He did nottell them about the soldiers.“Edward, here is my key,” said Jacobquietly.“ Lock the door of the house, andtake my gun from the wall. Don't leaveyour brother and sisters. I'll help the cookto pack her things, and then I'll followyou.”The four children left the big houseand went into the forest with White Billy. Itwas five o'clock in the afternoon, andalready dark. Jacob helped the cook, whohurried away to her family in Lymington,and then he hid in the trees near the house,and waited.After a while, he heard horses, andthe Parliamentary soldiers arrived. Soonthey were in the gardens and all around thehouse. A few minutes later Jacob saw blacksmoke going up into the sky; then he sawflames at the windows. Arnwood wasburning!“It is done,” thought Jacob, and hehurried away into the forest. In half anhour, he arrived at his cottage. He lookedback and saw the flames of Arnwoodshooting higher and higher above the trees.When he knocked on his door, Edwardopened it and came out with Smoker,Jacobs big dog.“My sisters are asleep in bed,” Edwardtold Jacob. Then Edward saw theflames of Arnwood and the angry red lightbetween the trees, and he was silent.“I told you,” Jacob said. “The soldiersdidnt look for you in the housebefore they burnt it.”“Arnwood is my house!” said Edwardangrily. “And when Im a man, Ill fightCromwells soldiers for this!”“Perhaps you will,” Jacob said quietly.“But lets go inside now. Its a cold night.”Edward slowly followed Jacob into thecottage. He hated Cromwell and the Parliamentarysoldiers. First, they killed his father,and now they burnt his house. He laydown on the bed, but he did not sleep.Reading Check1. Why did Jacob Armitage urgeEdward Beverley to leave Arnwoodimmediately?______________________________________________________________________________ _________________________________________________________2. How are the Beverley children relatedto the King's cause, and why are theyin danger?______________________________________________________________________________ _________________________________________________________3. Who has been taking care of theBeverley children since their parents'passing?______________________________________________________________________________ _________________________________________________________4. What was Edward's reaction whenhe saw the flames of Arnwood after it wasset fire by the soldiers?______________________________________________________________________________ _________________________________________________________。
巴黎简介英语版
巴黎简介英语版巴黎是法兰西共和国的首都,法国最大城市,欧洲第二大城市,是世界五大国际大都市之一,下面是店铺给大家整理的巴黎简介英语版,供大家参阅!巴黎简介Paris (English: Paris), is the capital of the French Republic, France's largest city, the second largest city in Europe, France's political, economic, cultural, business center. Paris is one of the world's top five international metropolises, the rest are New York, London, Tokyo and Hong Kong.Paris is located in the center of the northern French capital of Paris, across the Seine River. Paris has a small Paris, big Paris points. Small Paris refers to the city of Paris within the city within the city, an area of 105.4 square kilometers, a population of more than 200 million; large Paris, including the surrounding area of the Senna, Valle de Marne, Senna - St. Dani, The province, the province of Valle de Vaz, the province of Seine-Marne and the province of Esson, together constitute the Paris region, this area in ancient times has been called "France" (ile-de-france) An area of 12,000 square kilometers, a population of about 10 million, accounting for almost one fifth of the population.Paris has a history of more than 1,400 years, it is not only France, but also a political, economic and cultural center of Western Europe, Paris perfume "dream industry," said. Paris is the city of history, the food capital and the creative city. Paris is the famous world of artistic capital, the birthplace of Impressionist art, the birthplace of ballet, the European Enlightenment thought movement center, the hometown of the film, the founder of the modern Olympic Games. Paris is the world recognized culturalcapital, a large number of scientific institutions, research institutes, libraries, museums, cinemas, theaters, concert halls distributed in every corner of the city.Since the Middle Ages in the development, has been retained in the past mark, the layout of some streets has a long history, but also retain a unified style. All kinds of different backgrounds of the Paris residents, for this dream city brings colorful vitality, the formation of Huadu unique mark. In March 2016, the "2016 Wealth Report" was released, Paris ranked ninth in the world's most expensive city.巴黎历史沿革The history of Paris has been more than 2000 years, the earliest from Xidai Island issued. It is said that when the residents only a few hundred people, living in less than half a square kilometers of the old city island.In the fourth century AD, a tribe of the Romans occupied the island of Gauls on the island and established the capital of the "Paris Kyrgyzstan", hence the name of Paris.Since the sixth century AD, Paris became the capital of the Kingdom of France, after the French feudal dynasties are Paris for the country.In the thirteenth century, the population of Paris reached 70,000. King Philip Auguste ordered the construction of walls and fortifications, the population of Xidai Island is increasing, becoming the power center of the kingdom. The city's trade and handicraft workshops gradually concentrated in the right bank of the Seine, the market began to form. Most of the education, academic and religious communities live on the left bank of the Seine.The British and French centuries of war that began in 1337caused Paris to be severely damaged. After the war, Francois I once again set Paris and rebuilt.In 1546, the Louvre began to build. Later generations of emperors, especially Louis XIV, spend huge sums of money to repair the palace, making gardens, building a square.At the end of the 16th century, at the beginning of the seventeenth century, King Henry IV of the time greatly expanded Paris. By the 18th and 19th centuries, Paris was gradually expanding, and a large number of arable land was occupied by the city.On July 14, 1789, the people of Paris were angry and destroyed the prison of the feudal dynasty, who was the prisoner of the feudal dynasty, which broke out of the bourgeois revolution, issued a declaration of human rights and abolished the feudal system.In 1792 the first bourgeois republic of French history was established.In 1799, Napoleon launched the fog on the 18th coup, 1804 emperor named Napoleon I, and promulgated the "Napoleon Code".In 1815, Napoleon defeated in Waterloo, the empire collapsed, Louis XVIII established restoration dynasty.In 1830, the "July Revolution" overthrew the restoration dynasty, Louis Philip established the July dynasty.In 1848, the "February Revolution" established the Second Republic.In 1851, Napoleon's nephew Louis Bonaparte launched a coup, the following year emperor, the establishment of the second empire.After the September 1870 Revolution, the establishment ofthe third republic.In 1940, the German occupation of Paris, the third republic destroyed. After the end of the Second World War, the fourth republic was established in 1946.In 1958, General de Gaulle was empowered to form a new constitution and a fifth republic was established.Paris, the first empire later, Paris has more than 70 million residents, more than a thousand streets; after the establishment of the Second Empire, Paris and annexation of some of the surrounding villages; to Napoleon III, in Paris opened a number of wide roads, A lot of gardens and parks, so that Paris began to form today's appearance.After World War II, the French government spared no effort to build Paris. Although in 1970, in order to evacuate over the capital of the French political and economic institutions, the suspension of the development of Paris, but since 1977, Pompidou Center and the new shopping underground street since the construction of Paris has a new Direction.In order to make the development of the east and west of Paris more balanced, in 1981, the ten major projects, including the Bastille Opera and the National Library, which began with the President of the French government, were made by the end of 1996 All finished.巴黎地理环境Location domainParis is the largest city on the continent and one of the most prosperous cities in the world. Located in the north of France, the West Bank of the Seine, 375 kilometers from the estuary (English Channel). The Seine winds through the city, forming two river islands (Stade and St. Louis). The Greater Paris region alsoincludes the surrounding area of the city of Paris, the Upper Saina, Valle-Marne and the Seine-Saint-Denis, which are made up of Paris. Paris, the three provinces and Evelyn, the province of Valle de Váñez, the Seine-Marne and the province of Eisong. This area in ancient times has been called "the island of France" (ile de France).Climate environmentThe city itself is the center of the Paris basin, is a mild maritime climate, summer without heat, no cold winter; January average temperature of 3 ℃, July average temperature of 18 ℃, the annual average temperature of 10 ℃. Annual rainfall distribution is balanced, slightly larger in summer and autumn, the average annual rainfall of 619 mm.。
威廉·华兹华斯_《水仙花》
《水仙花》在英国深受广大学生喜 爱。在英国华兹华斯基金会2004 年组织的背诵活动中,超过26万 名的英国中学生同时背诵此一首诗, 创造了同时背诵一首诗人数最多的 新世界记录。
The Daffodils
原文
Written by William Wordsworth
I wondered lonely as a cloud That floats on high o'er vales and hills, When all at once i saw a crowd, A host,of golden daffodils; Beside the lake,beneath the trees, Fluttering and dancing in the breeze. Continuous as the stars that shine And twinkle on the Milky Way, They stretched in never-ending line Along the margin of a bay: Ten thousand saw i at a glance Tossing their heads in sprightly dance.
1798年9月至1799年春,华兹华斯同多萝西 去德国小住,创作了《采干果》、《露斯》 和短诗《露西》组诗,同时开始写作长诗 《序曲》。1802年10月,华兹华斯和相识多 年的玛丽· 郝金生结婚。 这段时间,华兹华斯 写了许多以自然与人生关系为主题的诗歌, 中心思想是大自然是人生欢乐和智慧的源。 1803年华兹华斯游苏格兰,写了《孤独的收 割人》和记游诗。1807年他出版两卷本诗集, 这部诗集的出版,结束从1797至1807年他创 作生命最旺盛的10年。 华兹华斯与柯尔律治(Samuel Taylor Coleridge)、骚塞(Robert Southey)同 被称为“湖畔派”诗人(Lake Poets)。他 们也是英国文学中最早出现的浪漫主义作家。 他们喜爱大自然,描写宗法制农村生活,厌 恶资本主义的城市文明和冷酷的金钱关系, 他们远离城市,隐居在昆布兰湖区和格拉斯 米尔湖区,由此得名“湖畔派”。
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Feature ‧ 4.75V to 18V Supply V oltage OperatingRange.‧ 300KHz Fixed Switching Frequency.‧ V oltage-Mode PWM Step-Down Regulator. ‧ Built-in Power MOSFET, Rds(on)≒100m Ω.‧ 2A Output Current, Up to 91.9% Efficiency ‧ 1.225V ±1.5% Internal Reference‧ Shutdown Current less than 25uA.‧ Built-in Soft-Start. ‧ Cycle-by-Cycle Current-Limit Protection. ‧ Short Circuitry Protection. ‧ Under-V oltage Lockout Protection.‧ Output V oltage Adjustable up to 16V .‧ SOP-8 Package.Application ‧ Distributed Power Systems‧ Battery Charger.‧ Palmtop Computers, PDAs.‧ DSL ModemsDescriptionAT1792 is a voltage-mode PWM step-downDC-DC converter capable of driving up to 2A loads over a wide input supply range with excellentline and load regulation characteristics. Highefficiency is obtained through the use of a low Rds(on) P-channel power switch.It uses a fixed switching frequency up to 300KHz thus allowing smaller sized components. The output voltage level is user-programmable via anexternal resistive voltage divider. The built-in soft-start can reduce inrush current on the input source at turn on.The device also has built-in cycle-by-cycle current-limit, under-voltage lockout and anON/OFF logic-control that can power down theregulator to a shutdown mode. In shutdown mode the regulator draws less than 20uA of supplycurrent. When a short circuit is detected on the output , the device immediately change switching frequency to 32KHz and duty cycle is limited to 5% to protect IC from damage.AT1792 is available in SOP-8 package.Block DiagramSWVINENGNDCOMPFBAimtron reserves the right without notice to change this circuitry and specifications.Pin ConfigurationSOP-8Ordering Information▲▲▲▲▲ : Date Code*For more marking information, contact out sales representative directlyPin DescriptionsPin No.SymbolI/ODescription1 N/C No Connect2 IN P Power Input. IN supplies power to the IC and Step-downconverter switch. IN must be bypassed with a ceramic 0.1uFcapacitor.3 SW O Power Switching Output.4 GND P Ground.5 FB IFeedback Input. Connect a resistive divider from switchingoutput to FB to ground.6 COMP OError Amplifier Output. A series RC network connected to thispin compensates AT1792.7 EN I Enable input. EN is a digital input that turns the regulatoron/off. Drive EN high to turn on the regulator, drive it low toturn it off.8 N/C No ConnectPart number Package MarkingAT1792X_GRESOP-8, Green792, Date Code with one bottom lineAbsolute Maximum Ratings *1Value Parameter RatedunitIN voltage -0.3 to 20 VEN voltage -0.3 to 5 VSW voltage -1 to IN+1 VFB, COMP voltage -0.3 to 6 VQuiescent current 5 mAHBM 2 KVESD Susceptibility*3MM 200 V1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to thedevice. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposureto absolute maximum rating conditions for extended periods may affect device reliability.2. Measured on approximately 1” square of 1 oz. copper FR4 board.3. Device are ESD sensitive. Handling precaution recommended. The Human Body model is a 100pF capacitor discharged through a 1.5KΩ resistor into each pin.Recommended Operation ConditionsValuesParameter SymbolUnitMin. Typ. Max.Power supply voltage IN 4.75 12 18 V Operating temperature Top -20 +25 +85 ℃Electrical Characteristics(IN=12V, EN=5V, Ta=+25℃, unless otherwise noted)Parameter Symbol Test ConditionMin.Typ. Max. Units Input operating voltage IN4.7512 18 VInput under-voltage lockoutthresholdV UVLO IN Rising 3.8 4.2 4.6 V UVLO hysteresis- 700 - mV Quiescent Current IinV FB =1.5V- 3.5 - mA Shutdown Current I SHDN EN =GND - 25 50 uA Oscillator Frequency f SW Ta =+25℃ - 300 330 KHz Short-Circuit Frequency FB=0V - 32 - KHz Feedback Regulation voltage V FB Ta =+25℃1.206 1.225 1.244 V FB Input Bias Current I FB V FB =1.225V -50 - 50 nA Current limitMin. On-time>0.5µs2.5 - - A Maximum Duty Cycle D MAIN FB = 1.0V - - 100 % Minimum Duty Cycle D MIIN FB =1.5V0 - - % SW Switch On-Resistance R SW-DS(ON) I SW =2A - 100 - m ΩSW Leakage Current I SW IN =13.5V ,V SW =GND, EN=0V - 0.1 20 µA Load Regulation 0 A<I SW < 1.5A 0.2 % Line Regulation 4.75V < IN<18V - 1.0 - %/V Error Amplifier Trans-conductance200300 400 µA/VSoft-Start Time- 10 - ms EN Threshold V oltage Hysteresis 150mV - 1.5 - V EN Pull Up CurrentEN=0V2 -- - µATypical characteristicsLoad Transient ResponseV IN =12V, VOUT =5.0V, L=22uH, I OUT=500mA to 2A C4=0.1µF C4=1µFCH2:V OUT (AC), CH4:I OUT , Time:200µs/divLoad Transient ResponseV IN =18V, V OUT =5.0V, L=22uH, IOUT =500mA to 2A C4=0.1µF C4=1µFCH2:V OUT (AC), CH4:I OUT , Time:200µs/divLoad Transient ResponseV IN =12V, VOUT =3.3V, L=22uH, I OUT=500mA to 2A C4=0.1µF C4=1µFCH2:V OUT (AC), CH4:I OUT , Time:200µs/divLoad Transient ResponseV IN =18V, V OUT =3.3V, L=22uH, IOUT =500mA to 2AC4=0.1µF C4=1µFCH2:V OUT (AC), CH4:I OUT , Time:200µs/divTypical Application CircuitV IN C 14.75V~15V 220µF 15V~18V 470µFGeneral DescriptionThe AT1792 features a PWM step-down converter operating with a fixed switching frequency of 300 KHz and uses internal power MOSFET to provide maximum efficiency. The output voltage of the converter can be set as low as 1.225V with external resistive divider. When trans-conductance signal is higher than saw-tooth wave, then PWM comparator will produce ON-time signal to set internal flip-flop, which turns on the switching power MOSFET. The external inductor current ramps up linearly, storing energy in a magnetic field. Once peak current of flowing through switching power MOSFET over current-limited threshold or trans-conductance signal level is lower than saw-tooth wave, the switching power MOSFET will turns off, the flip-flop resets, and external schottky diode turns on. This forces the current through the inductor to ramp back down, transferring the energy stored in the magnetic field to the output capacitor and load. To add higher flexibility to the selection of external component values, the device uses external loop compensation.Enable ControlDigital logic of EN provides an electrical ON/OFF control of the power supply. Connecting this pin to ground or to any voltage less than 1.0V will completely turn OFF the regulator. In this state, current drain from the input supply is only 20µA, the internal reference, error amplifier, comparators, and biasing circuitry turn off . When EN control is not required that it should be left open circuited.Soft-StartAT1792 is built-in soft-start function. When power up, after input voltage is above the under-voltage lockout threshold, then soft-start allows a gradual increase of COMP voltage to get to a steady state operating point. Therefore, reducing input surge currents. During this time, the COMP voltage increases and the output duty cycle is allowed to increase from zero to the value required for regulation. The maximum load current is available after the soft-start cycle is completed. When EN pin is taken low, the soft-start capacitor is discharge to ground.Short-Circuit ProtectionIf feedback voltage of the regulator falls below 0.85V, the oscillator clock switched operating frequency to 32KHz and duty cycle is limited to 5% to reduce input power delivered to output. If the short circuitry is not removed, the protection circuitry will activate sustainability. When short-circuit problem is to eliminate, oscillator clock will switch back to 300KHz automatically.Cycle-by-Cycle Over-Current ProtectionThe AT1792 provides cycle-by-cycle over-current protection. Current limit is accomplished using a separate dedicated comparator. If the current sense amplifier output voltage is larger than current-limited threshold level, it will be immediately turned off power MOS. The current-limit feature protects against a hard short or over current fault at the output.Applications InformationExternal components of step-down converter can be designed by performing simple calculations. It must be to follow regulation by the output voltage and the maximum load current, as well as maximum and minimum input voltages. Begin by selecting an inductor value. Once L is know, choose the diode and capacitors.InductorInductor selection depends on input voltage, output voltage, maximum current, switching frequency and availability of inductor values. The following buck circuit equations are useful in choosing the inductor values based on the application. Choose an inductor that does not saturate under the maximum rating load conditions. The magnitude of inductance is selected to maintain a peak to peak ripple current of 30% of the maximum load current.The peak inductor current is given by: inO in LAVG L LAVG Lpeak V V D DI I I I I ==∆+=2D is the MOSFET turn on ratio where:I △L is the inductor peak-to-peak current ripple and is decided by:OSCL O in OSC O in L f I D V V L f DL V V I ×∆×−=⇒×−=∆)(f OSC is the switching frequency.The inductor should be chosen to be able to handle this current and inductor saturation current rating should be greater than I PEAK .Diode selectionWhen the power switch turns off, the current through the inductor continues to flow. The path for this current is through the diode connected between the switch output and ground. This forward biased diode must has a minimum voltage drop and recovery times. Schottky diode is recommended and it should be able to handle those current. As usual, the reverse voltage rating of the diode should be at least 1.3 times greater than the maximum input voltage, and current rating is greater than the maximum load current.Feedback Resistor NetworkAn external resistor divider is required to divide the output voltage down to thenominal reference voltage. Current drawn by the resistor network should be limited tomaintain the overall converter efficiency. The maximum value of the resistor networkis limited by the feedback input bias current and the potential for noise being coupledinto the feedback pin. A resistor network in the order of 100k Ω is recommended. Thebuck converter output voltage is determined by the following relationship: ⎟⎟⎠⎞⎜⎜⎝⎛+×=231R R V V REF O where V REF =1.225V as specified.Input capacitorAn input capacitor helps to provide additional current to the power supply as well assmooth input voltage variations in high current switching regulators. When selectingan input capacitor, a low ESR capacitor is required to keep the noise at the IC to aminimum. Ceramic capacitors are preferred, but tantalum or low-ESR electrolyticcapacitors may also suffice. Choose an input capacitor with maximum voltage ratingis 1.3 times greater than the maximum input voltage, and RMS current rating is equalto one-half of the maximum dc load current. It may be necessary in some designs toadd a small valued ceramic type capacitor in parallel with the input capacitor toprevent any ring.Output CapacitorThe output capacitor acts to smooth the dc output voltage and also provides energystorage. Selection of an output capacitor, with an associated equivalent seriesresistance (ESR), impacts both the amount of output ripple voltage and stability of thecontrol loop. Low ESR capacitors are preferred to keep the output voltage ripple low.The output voltage ripple is estimated to be:28)1(OSCOUT O ripple f C L V D V ××××−=∆For low ESR ceramic capacitors, the output ripple is dominated by the charging ordischarging of the output capacitor.In the case of low-ESR electrolytic capacitors, Output ripple voltage drop caused bythe switching current through the ESR of the output capacitor. The output ripple isestimated as:ESR L RIPPLE R I V ×∆≅Impacting frequency stability of the overall control loop, the output capacitance, inconjunction with the inductor, creates a double pole inside the feedback loop. Inaddition the capacitance and the ESR value create a zero. These frequency responseeffects together with the internal frequency compensation circuitry of AT1792 modifythe gain and phase shift of the closed loop system.CompensationThe step-down loop can be compensated by adjusting the external componentsconnected to the COMP pin. The COMP pin is connected to the output of the internaltrans-conductance error amplifier. The compensation capacitor adjusts the lowfrequency gain , and the series resistor value adjusts the high frequency gain. A seriescapacitor-resistor combination sets a pole-zero combination to control thecharacteristics of the control system. The system has 2 poles and one zero ofimportance, 2 poles consist of compensation capacitor and output capacitor. One zerois produced by the compensation capacitor and the compensation resistor.If electrolytic capacitor with relatively high ESR is used, the zero due to thecapacitance and ESR of the output capacitor can be compensated by a third pole setby the compensation resistor and another compensation capacitor connected formCOMP pin to ground.PCB layout guidelinesCareful printed circuit layout is extremely important to avoid causing parasiticalcapacitance and line inductance. The following layout guidelines are recommended toachieve optimum performance.‧ Please the buck converter diode and inductor close to the SW pin and no via.‧ Please ceramic bypass capacitors near the input pin.‧ Locate all feedback resistive dividers as close to their respective feedback pins aspossible.‧ Use wide traces and trace length is short as possible.Outline 8-pin SOPINCHES MILLIMETERS SYMBOL MIN MAX MIN MAXNOTES A 0.188 0.197 4.80 5.00 -B 0.149 0.158 3.80 4.00 -C 0.228 0.244 5.80 6.20 -D 0.050 BSC 1.27 BSC -E 0.013 0.020 0.33 0.51 -F 0.004 0.010 0.10 0.25 -H 0.053 0.069 1.35 1.75 -J 0.011 0.019 0.28 0.48K 0.007 0.010 0.19 0.25M 0.016 0.050 0.40 1.27 e1 45O 45O α00 80 00 80 -Reflow ProfilesSn-Pb Eutectic AssemblyPb-Free Assembly Profile Feature Large Body Pkg. thickness ≥2.5mm or Pkg. volume ≥350mm 3Small BodyPkg. thickness<2.5mm or Pkg. volume <350mm3Large Body Pkg. thickness ≥2.5mm or Pkg. volume ≥350mm 3 Small Body Pkg. thickness <2.5mm or Pkg. volume <350mm 3Average ramp-up rate (T L to T P ) 3°C/second max.3°C/second max. Preheat -Temperature Min(Tsmin) -Temperature Max (Tsmax) -Time (min to max)(ts)100°C150°C60-120 seconds150°C 200°C 60-180 seconds Tsmax to T L -Ramp-up Rate3°C/second max. Time maintained above: -Temperature (T L )-Time (t L )183°C60-150 seconds 217°C 60-150 seconds Peak Temperature(T P )225+0/-5°C 240+0/-5°C 245+0/-5°C 250+0/-5°C Time within 5°C of actual PeakTemperature (t P )10-30 seconds 10-30 seconds 10-30 seconds 20-40 seconds Ramp-down Rate6°C/second max. 6°C/second max. Time 25°C to PeakTemperature 6 minutes max. 8 minutes max.*All temperatures refer to topside of the package, measured on the package body surface.。