『壹』 英语作文80词 题目。伟大的发明。 提示造纸术。 要有中文翻译。 谢谢
One of the Most Helpful Inventions
As we all know, paper is one of the four most important inventions in ancient China. It was invented in the Western Han dynasty by Cai Lun. After he had done many experiments. Cai Lun made paper with bark, ropes, rags and so on. It is a great contribution to the world.
Nowadays, paper is very useful in our work, study and daily life. We can use it to write, paint, print books and so on.
Thanks for the invention of paper. It has made our life more colorful.
伟大的发明
大家都知道，纸是中国古代四大最重要的发明之一。它是在西汉由蔡伦发明的。之后，他做了很多实验。蔡伦有树皮，绳子，破布等制成的纸。这是对世界的巨大贡献。
如今，纸是我们的工作，学习和生活非常有用。我们可以用它来写，油漆，印刷书籍等。
感谢纸的发明。它使我们的生活更加丰富多彩。
『贰』 最伟大的发明 英文
口语考试，《最伟大的发明》，以下的较为简单，但是不知道你要讲几分钟，全篇给你贴上：
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Ten Great Inventions of China
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In the last two centuries, new cultural discoveries have nearly rewritten history. It’s been an exciting time, full of adventure and surprises. Around every corner there are new responses to questions we had already imagined answered. And of these breakthroughs, none shines as brightly as the impact of ancient Chinese inventions on modern life. As we explore ten of the greatest inventions and innovations of Ancient China, you may be surprised at their influence on recent technology.
1. Paper. Paper, as we know it, was invented in China around the year 105. After seeing earlier attempts made from silk, bamboo sticks and animal skins, Cai Lun came up with his own idea. After mixing mulberry bark, rags, wheat stalks and other stuff, a pulp formed. This pulp was pressed into sheets and dried, becoming a crude form of paper. Paper was such an important invention that the process of making it was a jealously guarded secret. The secret was safe until the seventh century when the art spread to India.
2. The Printing Press. Before Johann Gutenberg “invented” the printing press in the 1440’s, China created a type of printing press between 206 B.C. and A.D. 45. It was made using stone tablets to create a “rubbing” of famous Buddhist and Confucian texts. Next came block printing in the Sui Dynasty. In block printing, images and words were engraved on wooden boards, smeared with ink and pressed onto sheets of paper. Later, moveable type printing presses were introced. According to the authors of Ancient Inventions, “By A.D. 1000, paged books in the modern style had replaced scrolls – a good 450 years ahead of Gutenberg.”
3. The First Book. Due to the early advent of the printing press, China also claims the first book. In 868, almost six hundred years before the Gutenberg Bible, the earliest known book was printed. By the end of the Tang dynasty, China had bookstores in almost every city.
4. Paper Money. While today you’d rather carry a lot of cash instead of coin, that hasn’t always been the case. The idea of paper currency was first attempted under Emperor Han Wu-Ti (140-87 B.C.) after war had drained the treasury. He issued treasury notes, worth and in exchange for 400,000 copper coins. Instead of paper, the Emperor used the skin of the white stag. But the creature was so rare that the idea soon lost appeal. In the early 800’s, the idea revived to deter highway robbers. In 812, the government was again printing money. By the year 1023, money had an expiration date and was already plagued by inflation and counterfeiting. Nearly six hundred years later paper money headed west, first printed in Sweden in 1601.
5. The Abacus. Well before Texas Instruments, the first calculator was in the works. The abacus dates from around the year 200 B.C. It is a very advanced tool with a simple design. Wood is crafted into a rectangular frame with rods running from base to top. About 2/3’s from the base, a divider crosses the frame, known as the counting bar. On each of the rods are beads. All of the beads above the counting bar equal five. Those below equal one. The rows of rods are read from right to left. The furthest bar to the right holds the one’s place, the next holds the ten’s place, then the hundred’s, and so on. While its design may sound complex, there are some Chinese today so skilled that they can solve difficult math problems faster than someone using a calculator!
6. The Decimal System. In the West, the decimal system appeared quite recently. Its first believed instance was in a Spanish manuscript dated around 976. But, the first true example goes back much further. In China, an inscription dated from the 13th century B.C., “547 days” was written as “five hundred plus four decades plus seven of days.” The Chinese likely created the decimal system because their language depended on characters (like pictures) instead of an alphabet. Each number had its own unique character. Without the decimal system, the Chinese would have had a terrible time memorizing all of these new characters. By using units of ones, tens, hundreds, etc., the Chinese saved time and trouble.
7. The Mechanical Clock. In the year 732, a Buddhist monk and mathematician invented the first mechanical clock. He named it “Water-Driven Spherical Bird’s-Eye-View Map of the Heavens.” Like earlier clocks, water gave it power, but machinery cased the movement. But, after a few years, corrosion and freezing temperatures took their toll. It wasn’t until 1090, when astronomer Su Sung designed his mechanical marvel “Cosmic Engine”, that a more dependable timepiece was made. Created for Emperor Ying Zong, this clock had a tower over 30 feet tall. It housed machinery that, among other things, caused wooden puppets to pop from one of five doors at regular intervals throughout the day. (Much like the modern idea of a Cuckoo clock.) The entire machine was powered by a giant waterwheel. This clock ran until 1126, when it was dismantled by the conquering Tartars and moved to Peking for another several years. The first clock reference in Western history was in 1335, in the church of St. Gothard in Milan.
8. The Planetarium. A planetarium is a big enclosed space that shows the stars and constellations on the inside. Orbitoscope was the name of the first projection planetarium. It was built in Basil in 1912 by Professor E. Hinderman. But, once again, China is the mother of this invention. The first planetarium is attributed to the design of an early emperor. As one source states, an astronomer named Jamaluddin created a planetarium ring the Yuan Dynasty (1271-1368), along with a perpetual calendar and other important astronomical devices.
9. The Earthquake Sensor. The earliest earthquake sensor was also an interesting piece of art. It was a bronze cylinder about 8 feet around, with 8 dragons perched above 8 open-mouthed frogs. In the mouth of each dragon rested a bronze ball. When an earthquake struck, a penlum inside the cylinder would swing. It knocked the ball from the mouth of the dragon and down into the frog’s mouth. That frog’s back was then facing the direction of the center of the quake. Chang Heng invented it in A.D. 132 (ring the Han Dynasty), almost 600 years before the first western sensor was made in France. Later, in 1939, Imamura Akitsune recreated the invention and actually proved it effective.
10. The Helicopter Rotor & Propeller. While the Ancient Chinese didn’t actually invent the helicopter, they were involved in its creation. In the 4th century A.D., they invented a toy called the “Bamboo Dragonfly”. You’ve probably seen them as prizes at local fairs or carnivals. It was a toy top, with a base like a pencil and a small helicopter-like blade at the end. The top was wrapped with a cord. When you pulled the cord, the blade would spin around and soar into the air. This toy was studied by Sir George Cayley in 1809 and played a role in the birth of modern aviation. It wasn’t until the early 1900’s that the first helicopter took flight.
『叁』 英语演讲ppt 关于“最好的发明”。急需！！！
只能给你大纲，没有完成的文章，你可以根据以下内容，打开思路，做一点观点上的发展。
Advantages of Powerpoint:
>If you get lost, you can casually look at the powerpoint for guidance
>People can register the info more as they can observe the PPT
>Images and good Presentation can make the PPT more engaging
>Good for Reference at the end, if they ask questions
>Looks more professional
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1. to show your point in a manner people can see visually
2. to make you less nervous since they will be looking at the powerpoint presentation not you
3. to show you supporting material in a way people can see
4. to help you sell you idea
『肆』 求一篇介绍名人的英文ppt
瓦特：
詹姆斯·瓦特（1736年1月19日 - 1819年8月25日）是英国著名的发明家，是工业革命时期的重要人物。英国皇家学会会员和法兰西科学院外籍院士。他对当时已出现的蒸汽机原始雏形作了一系列的重大改进，发明了单缸单动式和单缸双动式蒸汽机，提高了蒸汽机的热效率和运行可靠性，对当时社会生产力的发展作出了杰出贡献。他改良了蒸汽机、发明了气压表、汽动锤。后人为了纪念他，将制中功率和辐射通量的计量单位称为瓦特，常用符号“W”表示。他的芳名将永远刻在人类的历史上。
James watt (1736 in January 19-1819 August 25) is a famous British inventor, is important figure in the instrial revolution. The royal society member and the French academy of sciences foreign academician. He was already appeared the steam engine primitive rudiment of significant improvements, invented the single cylinder single movement type and single cylinder double plug-fuse type steam, improves the thermal efficiency of the steam engine and operation reliability, at that time to the development of social proctive force made outstanding contribution. He improved steam engine, invented the barometer and steam hammer. Later generations for commemorating him, will system in power and radiation flux measurement unit is called watt, commonly used symbols "W" said. His name will be forever engraved on the history of mankind.
『伍』 题目《我有一个伟大的发明》演讲稿。要英语的。11号就用。急
在21世纪的今天，电脑已经成为我们生活中不可缺少的一部分了。会用专电脑已经成为我们属走向社会的基本能力。通过电脑我不仅学会了打字和聊天，同时电脑又给我带来一个全新的世界，那就是网络。在这里我认识了新朋友，学到了新知识。它带着我在网络世界里自由邀翔！我想高声的对它说，谢谢你，电脑，你真是人类最伟大的发明。
转换成英语文章
『陆』 英语作文,世界上最伟大的发明,初中水平,80左右,急
Of the world's great inventions
Everyone's awareness of the greatest invention in the world are different, and I think that, computer is the greatest.
In today's information age, computers have brought us considerable convenience.
It so that we can buy things at home, so that we can meet with friends to chat, so we know a lot of things they don't.
Various signs indicate that the world's greatest invention is computer
世界上最伟大的发明
每个人对世界上最伟大的发明的认识不同，而我认为，电脑是最伟大的。
在当今的信息时代，电脑为我们带来了不少便利。
它使我们在家里就能买东西，使我们能与朋友聊天见面，使我们知道了很多不知道的事情。
种种迹象表明世界上最伟大的发明是电脑
『柒』 急需一篇关于手机或者旅游或者世界最伟大的发明的大学英语演讲稿
关于旅游的:
The Tour began with a prologue in Strasbourg, on the French-German border, and ended Sunday July 23 in Paris. The distance of the course (run counterclockwise around France) was 3657 km (2272 miles). The race was the third fastest in average speed. Along the way, the cyclists passed through six different countries including France, The Netherlands (a stop at Valkenburg in Stage 3), Belgium (at Huy, Stages 3 and 4), Luxembourg (at Esch-sur-Alzette, Stages 2 and 3), Germany (though not stopping there, Stage 1) and Spain (Pla-de-Beret, Stage 11). The presentation of the course was made by the new director of Le Tour, Christian Prudhomme. For the first time since the 1999 edition, there was no team time trial.
The event, as with some of the Tours of the late 1990s, was marred by doping scandals. Prior to the tour, numerous riders - including the two favourites Jan Ullrich and Ivan Basso - were expelled from the tour e to their link with the Operació Puerto doping case. After the tour, the winner Floyd Landis was found to have failed a drugs test after stage 17; runner up Óscar Pereiro Sio currently also claims the title. As of October 2006, Landis is still officially considered the winner, whilst he appeals against the failed test.
『捌』 英语作文 十九世纪最伟大的发明
Computer-related English essay requirements: is the greatest invention 20th century great changes in people lives and work level. Due to the wide scope of speed used for instrial, agricultural and service sectors. Schools are equipped with computer ecation seriously frequently organised competit