四大发明作文？四大发明是指中国古代对世界具有很大影响的四种发明。即造纸术、指南针、火药、活字印刷术。此一说法最早由英国汉学家李约瑟提出并为后来许多中国的历史学家所继承，普遍认为这四种发明对中国古代的政治、经济、文化的发展产生了巨大的推动作用，且这些发明经由各种途径传至西方，对世界文明发展史也产生了很大的影响。那我就先说说造纸术，那么，四大发明作文？一起来了解一下吧。
我们中国有世界著名的四大发明，一是火药，二是造纸术，三是印刷术，四是指南针。这让我们中国古代成了文明古国。
延续至今，中国的四大发明在各个科技领域中起到了不可替代的重要作用。
一个是火药，火药是我们发明的。火药给我们带来什么东西呢？带来了我们的礼花，带来了我们的鞭炮。到今天为止火药在我们的历史上发挥过巨大的作用，通过阿拉伯传到欧洲之后，欧洲人利用火药技术制造了大炮，这就是1840年第一次鸦片战争和1860年的第二次鸦片战争，以及甲午战争和1900年的八国联军进北京，用中国的火药烧了中国的圆明园。
说到指南针，我们的郑和用指南针七下西洋，开拓了中华民族文化进军世界的先河。他们是传教士，中国人历来是善良的，我们下西洋不是为了掠夺，不是为了抢劫。
我们的印刷术，印刷术和造纸术是中国伟大的发明。传到了欧洲以后，几百年以后才造福于社会，中华民族熊熊的火炬照亮了西方黑暗的中世纪，他们确实是受益匪浅的。他们的科技发达了，文艺复兴了，但是今天我们的造纸术又如何呢？我们的印刷术又如何呢？我们公司有一位对印刷比较精通的副总经理，他每天设计我们公司的产品，我国最好的印刷机叫“海德宝”，是我们发明的活字印刷术，但是现在最好的印刷机是“海德宝”，而四色彩印，精美印刷品，都是人家印的，最好的纸张是人家的，便宜、质量好。
自从四大发明都诞生了，他们的创造者都成了神仙。他们有一个宝物，那个宝物有很强的磁力。但不幸的是宝物被人给盗了。他们便派出了各自的宠物。分别是、指南针、造纸术、印刷术、火药。它们便走上了寻找宝物的征图。首先，警犬：指南针闻着宝物的宗迹，一定可以找到盗贼。到了城外，士兵不让进，这时大汗：火药把城门炸了。进去却找不到盗贼，这时，智多星：造纸术把办法写在纸上，却争的看不来，另一位也现身了没错就是印刷术把办法复制了三份。找到了盗贼，把宝物夺了回来。 回去以后创造者们问：谁起了关建作用？指南针说：是我，要不是我他们跟本找不到盗贼。火药不满的说：明明是我，要不是我，他们根本进不了城门。 造纸术生气地说：要不是我的聪明才智，你们也没办法。只有印刷术说：大家不要争抢，每个人都有功劳。创造者们说：你们要像印刷术一样谦虚。从此，四大发明成了最好的朋友。
四大发明
我们中国有世界著名的四大发明，一是火药，二是造纸术，三是印刷术，四是指南针。这让我们中国古代成了文明古国。
延续至今，中国的四大发明在各个科技领域中起到了不可替代的重要作用。
一个是火药，火药是我们发明的。火药给我们带来什么东西呢？带来了我们的礼花，带来了我们的鞭炮。到今天为止火药在我们的历史上发挥过巨大的作用，通过阿拉伯传到欧洲之后，欧洲人利用火药技术制造了大炮，这就是1840年第一次鸦片战争和1860年的第二次鸦片战争，以及甲午战争和1900年的八国联军进北京，用中国的火药烧了中国的圆明园。
说到指南针，我们的郑和用指南针七下西洋，开拓了中华民族文化进军世界的先河。他们是传教士，中国人历来是善良的，我们下西洋不是为了掠夺，不是为了抢劫。
我们的印刷术，印刷术和造纸术是中国伟大的发明。传到了欧洲以后，几百年以后才造福于社会，中华民族熊熊的火炬照亮了西方黑暗的中世纪，他们确实是受益匪浅的。他们的科技发达了，文艺复兴了，但是今天我们的造纸术又如何呢？我们的印刷术又如何呢？我们公司有一位对印刷比较精通的副总经理，他每天设计我们公司的产品，我国最好的印刷机叫“海德宝”，是我们发明的活字印刷术，但是现在最好的印刷机是“海德宝”，而四色彩印，精美印刷品，都是人家印的，最好的纸张是人家的，便宜、质量好。
Four Great Inventions of Ancient China -- printing
Block Printing
With the inventions of paper and ink, stamper gradually became popular during the Jin Dynasty (265-420), which was the early form of Carved Type Printing. Block Printing first appeared in the Tang Dynasty (618-907). The text was first written on a piece of thin paper, then glued face down onto a wooden plate. The characters were carved out to make a wood-block printing plate, which was used to print the text. Wood-block printing took a long time as a new block had to be carved for every page in a book.
It took a lot of time and energy as well as materials to prepare for printing a book, but it worked more effectively afterwards. This technology was gradually introduced to Korea, Japan, Vietnam, and the Philippines.
Yet, Block Printing had its drawbacks -- all the boards became useless after the printing was done and a single mistake in carving could ruin the whole block. The frontispiece of the world's oldest surviving book, the Diamond Sutra printed in the year 868, was discovered at Dunhuang Cave, along the Silk Road. The book, in the form of a roll, is the earliest woodcut illustration in a printed book.
Movable Type Printing
Block Printing was a costly and time-consuming process, for each carved block could only be used for a specific page of a particular book, besides, a single mistake in carving could ruin the whole block. However movable type changed all of that.
In the Song Dynasty (960-1279), a man named Bi Sheng carved individual characters on identical pieces of fine clay. Each piece of movable type had on it one Chinese character which was carved in relief on a small block of moistened clay. After the block had been hardened by fire, the type became hard and durable and could be used wherever required. The pieces of movable type could be glued to an iron plate and easily detached from the plate. Each piece of character could be assembled to print a page and then broken up and redistributed as needed. When the printing was finished, the pieces were put away for future use.
By the year1000, paged books in the modern style had replaced scrolls. Two color printing (black and red) was seen as early as 1340.
This technology then spread to Korea, Japan, Vietnam and Europe. Later, German Johann Gutenberg invented movable type made of metal in the 1440s. Movable Type Printing developed very fast. Based on clay type, type made of wood, lead, tin and copper gradually appeared.
Four Great Inventions of Ancient China -- Gunpowder
The invention of gunpowder had a close relationship with the advanced ancient workmanship of smelting industry. People began to know a lot of chemistry knowledge about the nature of different mineral materials during the process of smelting operation. With the knowledge, ancient necromancers tried to seek the elixir of immortality from certain kinds of ores and fuel. Although they failed to get what they were looking for, they discovered that an explosive mixture could be produced by combining sulfur, charcoal, and saltpeter (potassium nitrate). This mixture finally led to the invention of gunpowder although its exact date of invention still remains unknow
Many historical materials indicate that gunpowder first appeared before the Tang Dynasty (618-907). From 300 to 650AD several recipes were written about inflammable mixtures. Some historians date the invention of gunpowder at 850AD when a Taoist book warned of three specific elixir formulas as too dangerous to experiment.
The military applications of gunpowder began in the Tang Dynasty. Explosive bombs filled with gunpowder and fired from catapults were used in wars. During the Song and Yuan dynasties (960-1368), the military applications of gunpowder became common and some other weapons like "fire cannon", "rocket", "missile" and "fireball" were introduced.
In the Yuan Dynasty (1279-1368), the method of powder-making was introduced to the Arab world and Europe, bringing a series of revolutions to weapon manufacturing, as well as to stratagem and tactics on the battlefield. From Italy the making of gunpowder soon spread to other European countries, and by the 1350s it had become an effective weapon on the battlefield.
Four Great Inventions of Ancient China -- Paper
China was the first nation who invented paper. The earliest form of paper first appeared in the Western Han Dynasty (206BC-23AD), but the paper was generally very thick, coarse and uneven in their texture, made from pounded and disintegrated hemp fibers. The paper unearthed in a Han tomb in Gansu Province is by far the earliest existing ancient paper, tracing back to the early Western Han Dynasty.
In the Eastern Han Dynasty (25-220), a court official named Cai Lun made a new kind of paper from bark, hemp, rags, fishnet, wheat stalks and other materials. It was relatively cheap, light, thin, durable and more suitable for brush writing.
The art of paper-making spread east to Korea and Japan at the beginning of the seventh century (the end of the Sui Dynasty and the beginning of the Tang Dynasty). In the eighth century, along with the Silk Road, the Arab countries began to learn how to make paper. It took about 400 years for paper to traverse the Arab world to Europe. In the 14th century many paper mills were established in Italy, from where the workmanship of paper-making spread to the European countries such as Germany. The Italians vigorously produced the material and exported large amounts of it, dominating the European market for many years. In the 16th century, the art of paper-making appeared in Russia and Holland, and it spread to Britain in the 17th century.
Before paper was invented, Qin Shihuang, the first emperor in Chinese history, had to go over 120 kilos of official documents written on bamboo or wooden strips. With the invention of paper, the popularization of knowledge has turned into reality. The invention of paper is an epoch-making event in human history.
Four Great Inventions of Ancient China -- Compass
Early in the Spring and Autumn Period (770-476BC), while mining ores and melting copper and iron, Chinese people chanced upon a natural magnetite that attracted iron and pointed fixedly north. In the Warring States Period (206BC-23AD), after constant improvement the round compass came into being. Referred to as a "South-pointer", the spoon- or ladle- shaped compass is of magnetic lodestone, and the plate is of Bronze. The circular center represents Heaven, and the square plate represents Earth. The handle of the spoon points south. The spoon is a symbolic representation of the Great Bear. The plate bears Chinese characters which denote the eight main directions of north, north-east, east, etc. This type of compass has been scientifically tested and found to work tolerably well.
By the time of the Tang dynasty (618-907) and the beginning of the Northern Song Dynasty (960-1127), Chinese scholars had devised a way to magnetize iron needles, by rubbing them with magnetite, and then suspending them in water. They also observed that needles cooled from red heat and held in the north-south orientation (the earth's axis) would become magnetic. These more refined needle compasses could then be floated in water (wet compass), placed upon a pointed shaft (dry compass) or suspended from a silk thread, etc. Consequently, they were much more useful for navigation purposes since they were much more portable.
During the Song Dynasty (960-1279) many trading ships were then able to sail as far as Saudi Arabia without getting lost. The compass was introduced to the Arab world and Europe during the Northern Song Dynasty. The spread of the compass to Europe opened the oceans of the world to travel and led to the discovery of the New World.
新四大发明英语作文：
作文一：移动支付
移动支付作为新四大发明之一，给我们的生活带来了前所未有的便利。其主要优势体现在以下两方面：
节省时间：通过智能手机，我们可以迅速完成支付，无需再为现金计数或信用卡核对过程而排队等候。商家仅需扫描手机即可完成交易，顾客也能即时检查交易详情，极大地缩短了等待时间。
减少假币风险：随着现金使用的减少，假币流通量也随之降低。网络支付依赖于电子验证，确保了资金安全，为消费者提供了更加可靠的交易环境，避免了收到假币的风险。
作文二：网购
网购已经成为我们日常生活的一部分，其便利性无与伦比。网购的优势与潜在弊端如下：
节省时间与精力：消费者无需奔波于各个商店，只需在家中通过电脑或手机浏览并购买所需商品。这对于老年人、病人及忙碌人士而言尤为实用，让他们能够轻松购物，无需亲自前往商店。
商品选择丰富：网购平台提供了海量的商品选择，消费者可以轻松找到心仪的商品。
以上就是四大发明作文的全部内容，写作思路：罗列出中国的四大发明，写出这些发明的伟大之处，使用简单的英文句子描写出这些。正文：There are four world famous inventions in China, one is gunpowder, the other is compass, the third is printing and the fourth is papermaking.我国有世界著名的四大发明，一是火药，二是指南针，内容来源于互联网，信息真伪需自行辨别。如有侵权请联系删除。
