寫作思路：羅列出中國的四大發明，寫出這些發明的偉大之處，使用簡單的英文句子描寫出這些。
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.
我國有世界著名的四大發明，一是火藥，二是指南針，三是印刷術，四是造紙術。
This makes our ancient China become an ancient civilization.
這讓我們中國古代成了文明古國。
China's four great inventions have played an irreplaceable role in various fields of science and technology.
中國的四大發明在各個科技領域中起到了不可替代的重要作用。
Gunpowder. Gunpowder was invented by us.
火藥，火藥是我們發明的。
What does gunpowder bring us?
火藥給我們帶來什么東西呢？
It brought fireworks, firecrackers, fireworks, mining, and aerospace.
帶來了禮花、帶來了鞭炮、用于制造煙花爆竹、用于采礦，還有用于航天事業的發展。
Up to now, gunpowder has played an important role in our history.
到今天為止火藥在我們的歷史上發揮著巨大的作用。
寫作思路：羅列出中國的四大發明，寫出這些發明的偉大之處，使用簡單的英文句子描寫出這些。
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.
我國有世界著名的四大發明，一是火藥，二是指南針，三是印刷術，四是造紙術。
This makes our ancient China become an ancient civilization.
這讓我們中國古代成了文明古國。
China's four great inventions have played an irreplaceable role in various fields of science and technology.
中國的四大發明在各個科技領域中起到了不可替代的重要作用。
Gunpowder. Gunpowder was invented by us.
火藥，火藥是我們發明的。
What does gunpowder bring us?
火藥給我們帶來什么東西呢？
It brought fireworks, firecrackers, fireworks, mining, and aerospace.
帶來了禮花、帶來了鞭炮、用于制造煙花爆竹、用于采礦，還有用于航天事業的發展。
Up to now, gunpowder has played an important role in our history.
到今天為止火藥在我們的歷史上發揮著巨大的作用。
Compass, China's Zheng He with the compass seven voyages, opened up the Chinese culture into the world's first.
指南針，我國的鄭和用指南針七下西洋，開拓了中華民族文化進軍世界的先河。
The earliest compass was called Sinan in China.
最早的指南針中國人稱之為“司南”。
The compass is also used in navigation, as well as for military personnel to locate.
指南針也被用于航海，以及軍事家確定方位。
Printing, it is said that a man named Bi Sheng invented letterpress printing.
印刷術，相傳有個叫畢升的人發明了活版印刷術。
With the development of modern industry, laser Phototypesetting, digital technology and other new printing technologies will be used in modern life.
隨著現代工業的發展，激光照排、數字技術等新型印刷技術將用于現代生活中。
Cai Lun is a great inventor of papermaking in China. He invented papermaking.
造紙術，蔡倫是我國偉大的發明家，是他發明了造紙術。
With the invention and spread of papermaking, the carrier cost of characters has been greatly reduced, thus greatly promoting the development of science and technology and economy in the world.
造紙的發明與傳播，使文字的載體成本得到了大幅度的下降，從而極大地推動了世界科技、經濟的發展。
The four great inventions have made us proud and promoted the continuous development of Chinese civilization, but now we have some inventions which are backward. For example, papermaking and printing are very advanced in foreign countries. Therefore, we should study hard and master knowledge to make our motherland stronger.
四大發明曾讓我們自豪過，也曾推動中華文明向前不斷發展，可是現在有部分發明我們已經處于落后局面，比如造紙術、印刷術在外國已經很先進了，因此我們應該好好學習，掌握知識，才能讓我們的祖國更加強大。
The four great inventions
Paper: paper is an important chemical processes, the invention of paper is Chinese in the spread of human culture and development make a valuable contribution, is China's chemical history of a major achievement.
The paper also before, oracle bones, bamboo slips and silk silk is used for writing, the ancient recorded material. But due to the rapid development of the economy, culture, bones and bamboo can not meet the demand of development, thus contributing to the improvement of writing tools. At that time people began using small silk made of paper, as the ancient Chinese when paper by hemp thread and silk, and preparation method of rough paper, so the quality is not so good. But the hemp thread and silk has its own role, to use them as a raw material for paper-making, would be greatly restricted, and difficult to get rapid development, to meet the cultural life of the requirement to paper.
In the new situation request, Cai Lun of Eastern Han Dynasty for the emergence of papermaking to bring new breakthrough in the Eastern Han Dynasty, views on 2 records: Cai Lun, talented, dedicated to cautious, every vacation, closed to the guest, aeration body field. Code for the sale, made with bark and spacious cloth, net to make paper. Xing Yuan first year playing, the emperor can, since is not used, the salty called Cai Hou paper. From above, Cai Lun is using bark, rags, net of papermaking. Although before Cai Lun also has a paper, but raw material itself is very limited, and Cai Lun on the new raw materials, to solve this problem. Because the rag, broken fishnet had already finished their task, a waste and used as a raw material for papermaking industry, which plays an important role.
Printing: is the working people in ancient China through long-term practice and research before the invention of. About the year before and after 600 years of Sui Dynasty, people from the engraved seal inspired, in the history of mankind's earliest invention of woodblock printing.
Woodblock printing is in a certain thickness of the smooth wood, paste copy neat manuscript, thin and almost transparent paper front and wood paste, the word became the body, strokes clear. Engraving workers graver in the suites have writing section is cut away, is a convex embossed font, and font recessed beneath the different steles. When printing, on a raised fonts with ink, and then the paper covering on top of it, gently wipe away the paper back, writing remain on the paper. By the Song Dynasty, woodblock printing career development to the heyday. Woodblock printing on the spread of culture play an important role, but also has obvious disadvantages. The first version, time-consuming material costs, second, a large number of books stored inconveniently, third, is not easy to correct mistakes.
The Northern Song Dynasty civilian inventor Bi Sheng invented movable-type printing, woodblock printing these drawbacks improvement. Bi Sheng's Dynasty of an ordinary civilian intellectuals, the person who. He summed up the block printing of rich experience in practice, after repeated tests, the emperor Renzong of evolution years (AD 10411048 ) made the moveable, execute typesetting printing, completed the printing history of a major revolution, about 200 years later, this technology spread to other countries, the development of world civilization process to promote the role of.
Gunpowder: is one of the four great inventions of china. Gunpowder, as the name suggests is the ( fire medicine ). Its origins and alchemy are closely related, Bachelor in ancient alchemy alchemy inadvertently material.
It is a mixture of saltpeter, sulfur, carbon, and the top two in the Han Dynasty book into Chinese Materia Medica ( first classics of Shennong materia medica by ) have been listed as important medicinal herbs. Gunpowder itself is also come under the drug class, the Ming Dynasty Li Shizhen ( compendium of Materia Medica ) said, gunpowder can cure sore ringworm, insecticidal, provide moisture and plague. The invention of gunpowder is a long-term alchemy pharmaceutical practice results, has been one thousand years of history.
The Tang Dynasty, gunpowder has been used for military. The Song Dynasty, the war continuously, promote the accelerated development of gunpowder weapons. The government of the Northern Song Dynasty established a powder mill, has made gunpowder arrow, artillery and other combustion properties mainly weapons and ( bang cannon ), ( lightning bombs ) and other explosive strong arms. The Southern Song Dynasty were created in 1259 to giant bamboo tube, built-in gunpowder ( sudden guns ). To the Yuan Dynasty and the emergence of bronze ( copper Fire Commission, known as the general). These are to gunpowder explosion as the driving force of arms, in the war revealed a hitherto unknown power.
In 12, thirteenth Century, the gunpowder first introduced in Arabia state, and then spread to Greece and Europe and around the world. On the civilization and progress of human society, the economy and the development of science and culture, played a role in promoting. The law until the middle of the fourteenth Century, only then has the application of gunpowder and firearms records.
Compass : the spring and Autumn period, Chinese working people in the mining, smelting, gradually recognized magnet. To the Warring States period, some people use magnets made apparatus to determine the direction, then called compass, it is in a along the plate placed on a water scoop like magnet, water scoop handle end of South point. To the late Northern Song Dynasty ( Eleventh Century AD), the Chinese people have created artificial magnet, then created a guide to the fish, the magnet. Fish on the water surface, thus indicating the direction. Later, after repeated research and improvement, and the magnetic steel sheet into a small magnetic needle, and makes its tip into the magnetic north pole, end become the south magnetic pole, which became a compass. The Northern Song Dynasty, people create a suitable nautical compass, the maritime industry to a new era. During this period, China 's shipbuilding technology in the world the most advanced. At the beginning of the fourteenth Century, the compass was introduced into Europe from china.
四大發明
造紙術:造紙是一項重要的化學工藝，紙的發明是中國在人類文化的傳播和發展上所做出的一項十分寶貴的貢獻，是中國化學史上的一項重大的成就。
在紙還未發明之前，甲骨、竹簡和絹帛是古代用來供書寫、記載的材料。但由于西漢的經濟、文化迅速發展，甲骨和竹簡不能滿足發展的需求，從而促使了書寫工具的改進。當時人們已開始應用小塊的絲綿制成的紙，由于古漢時的紙張是由麻縷和絲綿，加上制法粗糙，所以紙張的質量不太好。而麻縷和絲綿都有其本身的作用，如要把它們用作造紙的原料，就必然會受到很大的限制，而難以得到迅速的發展，來滿足文化生活上對紙張的要求。
在新的客觀形勢要求下，東漢蔡倫的出現為造紙術帶來新突破，在《東漢觀記》卷二上記載：“蔡倫，有才學，盡忠重慎，每次休沐，閉門以絕賓客，曝體田野。典作尚方，造意用樹皮及敝布、魚網作紙。元興元年奏上，帝善其能，自是莫不用，天下咸稱蔡侯紙”。從以上看來，蔡倫是用樹皮、破布、魚網造紙的。雖然在蔡倫之前也有紙的存在，但是原料本身就有很大的局限，而蔡倫對新原料的發現，解決了這個問題。因為破布、破魚網早已結束了它們本身的任務，成了廢物而又用作做原料，對造紙工業起了極大的推動作用。
印刷術:是我國古代勞動人民經過長期實踐和研究才發明的。 大約在公元600年前后的隋朝，人們從刻印章中得到啟發，在人類歷史上最早發明了雕版印刷術。
雕版印刷是在一定厚度的平滑的木板上，粘貼上抄寫工整的書稿，薄而近乎透明的稿紙正面和木板相貼，字就成了反體，筆劃清晰可辨。雕刻工人用刻刀把版面沒有字跡的部分削去，就成了字體凸出的陽文，和字體凹入的碑石陰文截然不同。印刷的時候，在凸起的字體上涂上墨汁，然后把紙覆在它的上面，輕輕拂拭紙背，字跡就留在紙上了。到了宋朝，雕版印刷事業發展到全盛時期。雕版印刷對文化的傳播起了重大作用，但是也存在明顯缺點。第一，刻版費時費工費料，第二，大批書版存放不便，第三，有錯字不容易更正。
北宋平民發明家畢升發明了活字印刷術，改進雕版印刷這些缺點。畢升是北宋中期的一個普通平民知識分子，當時人稱布衣。他總結了歷代雕版印刷的豐富的實踐經驗，經過反復試驗，在宋仁宗慶歷年間（公元1041－1048）制成了膠泥活字，實行排版印刷，完成了印刷史上一項重大的革命，大約200年后，這一技術傳到其他國家，對世界文明的發展進程起到推動作用。
火藥:是中國四大發明之一?；鹚?顧名思義就是(著火的藥)。它的起源與煉丹術有著密切的關系,是古代煉丹士在煉丹時無意中配制出來。
它是硫黃,硝石,炭的混合物,而前兩項在漢代成書的中國第一部藥物學典籍(神農本草經)里都被列為重要的藥材。就是火藥本身也被歸入藥類,明代李時珍的(本草綱目)中說,火藥能治瘡癬,殺蟲,辟濕氣和瘟疫?；鹚幍陌l明是人們長期煉丹制藥實踐結果,至今已有一千多年歷史。
唐朝末年,火藥已被用于軍事。到了宋代,戰爭接連不斷,促進火藥武器的加速發展。北宋政府建立了火藥作坊,先后制造了火藥箭,火炮等以燃燒性能為主的武器和(霹靂炮),(震天雷)等爆炸性較強的武器。南宋在1259年造出了以巨竹為筒,內裝火藥的(突火槍)。到了元代又出現銅鑄火統,稱為(銅將軍)。這些都是以火藥的爆炸為推動力的武器,在戰爭中顯示了前所未有威力。
在12、13世紀,火藥首先傳入阿拉伯國家,然后傳到希臘和歐洲乃至世界各地。對人類社會的文明進步,對經濟和科學文化的發展,起了推動作用。美法各國直到十四世紀中葉,才有應用火藥和火器的記載。
指南針:春秋時期，中國勞動人民就在采礦、冶煉中，逐漸認識了磁石。到戰國時期，就有人用磁石做成器具來判定方向，當時叫“司南”，它是在一個無沿的方盤上放置一只水勺似的磁石，水勺的柄端向南指。到北宋后期（公元11世紀），中國人民創造了人工磁鐵，此后又創制了“指南魚”，把用磁鋼片制成的“魚”放在水面上，以此指示方向。后來經過反復研究改進，又把磁鋼片改成細小的磁鋼針，并使它的尖端成磁北極，末端成為磁南極，這就成了指南針。北宋時期，人們創造了適用于航海的指南針，把航海事業推向了新的時代。這一時期，中國的造船技術在世界上也最為先進。到了14世紀初，指南針才由中國傳到歐洲。
如有錯誤之處，望指出
by：扇子 【不求分數，不求等級。只求解答】
The four great inventions
Paper: paper is an important chemical processes, the invention of paper is Chinese in the spread of human culture and development make a valuable contribution, is China's chemical history of a major achievement.
The paper also before, oracle bones, bamboo slips and silk silk is used for writing, the ancient recorded material. But due to the rapid development of the economy, culture, bones and bamboo can not meet the demand of development, thus contributing to the improvement of writing tools. At that time people began using small silk made of paper, as the ancient Chinese when paper by hemp thread and silk, and preparation method of rough paper, so the quality is not so good. But the hemp thread and silk has its own role, to use them as a raw material for paper-making, would be greatly restricted, and difficult to get rapid development, to meet the cultural life of the requirement to paper.
In the new situation request, Cai Lun of Eastern Han Dynasty for the emergence of papermaking to bring new breakthrough in the Eastern Han Dynasty, views on 2 records: Cai Lun, talented, dedicated to cautious, every vacation, closed to the guest, aeration body field. Code for the sale, made with bark and spacious cloth, net to make paper. Xing Yuan first year playing, the emperor can, since is not used, the salty called Cai Hou paper. From above, Cai Lun is using bark, rags, net of papermaking. Although before Cai Lun also has a paper, but raw material itself is very limited, and Cai Lun on the new raw materials, to solve this problem. Because the rag, broken fishnet had already finished their task, a waste and used as a raw material for papermaking industry, which plays an important role.
Printing: is the working people in ancient China through long-term practice and research before the invention of. About the year before and after 600 years of Sui Dynasty, people from the engraved seal inspired, in the history of mankind's earliest invention of woodblock printing.
Woodblock printing is in a certain thickness of the smooth wood, paste copy neat manuscript, thin and almost transparent paper front and wood paste, the word became the body, strokes clear. Engraving workers graver in the suites have writing section is cut away, is a convex embossed font, and font recessed beneath the different steles. When printing, on a raised fonts with ink, and then the paper covering on top of it, gently wipe away the paper back, writing remain on the paper. By the Song Dynasty, woodblock printing career development to the heyday. Woodblock printing on the spread of culture play an important role, but also has obvious disadvantages. The first version, time-consuming material costs, second, a large number of books stored inconveniently, third, is not easy to correct mistakes.
The Northern Song Dynasty civilian inventor Bi Sheng invented movable-type printing, woodblock printing these drawbacks improvement. Bi Sheng's Dynasty of an ordinary civilian intellectuals, the person who. He summed up the block printing of rich experience in practice, after repeated tests, the emperor Renzong of evolution years (AD 10411048 ) made the moveable, execute typesetting printing, completed the printing history of a major revolution, about 200 years later, this technology spread to other countries, the development of world civilization process to promote the role of.
Gunpowder: is one of the four great inventions of china. Gunpowder, as the name suggests is the ( fire medicine ). Its origins and alchemy are closely related, Bachelor in ancient alchemy alchemy inadvertently material.
It is a mixture of saltpeter, sulfur, carbon, and the top two in the Han Dynasty book into Chinese Materia Medica ( first classics of Shennong materia medica by ) have been listed as important medicinal herbs. Gunpowder itself is also come under the drug class, the Ming Dynasty Li Shizhen ( compendium of Materia Medica ) said, gunpowder can cure sore ringworm, insecticidal, provide moisture and plague. The invention of gunpowder is a long-term alchemy pharmaceutical practice results, has been one thousand years of history.
The Tang Dynasty, gunpowder has been used for military. The Song Dynasty, the war continuously, promote the accelerated development of gunpowder weapons. The government of the Northern Song Dynasty established a powder mill, has made gunpowder arrow, artillery and other combustion properties mainly weapons and ( bang cannon ), ( lightning bombs ) and other explosive strong arms. The Southern Song Dynasty were created in 1259 to giant bamboo tube, built-in gunpowder ( sudden guns ). To the Yuan Dynasty and the emergence of bronze ( copper Fire Commission, known as the general). These are to gunpowder explosion as the driving force of arms, in the war revealed a hitherto unknown power.
In 12, thirteenth Century, the gunpowder first introduced in Arabia state, and then spread to Greece and Europe and around the world. On the civilization and progress of human society, the economy and the development of science and culture, played a role in promoting. The law until the middle of the fourteenth Century, only then has the application of gunpowder and firearms records.
Compass : the spring and Autumn period, Chinese working people in the mining, smelting, gradually recognized magnet. To the Warring States period, some people use magnets made apparatus to determine the direction, then called compass, it is in a along the plate placed on a water scoop like magnet, water scoop handle end of South point. To the late Northern Song Dynasty ( Eleventh Century AD), the Chinese people have created artificial magnet, then created a guide to the fish, the magnet. Fish on the water surface, thus indicating the direction. Later, after repeated research and improvement, and the magnetic steel sheet into a small magnetic needle, and makes its tip into the magnetic north pole, end become the south magnetic pole, which became a compass. The Northern Song Dynasty, people create a suitable nautical compass, the maritime industry to a new era. During this period, China 's shipbuilding technology in the world the most advanced. At the beginning of the fourteenth Century, the compass was introduced into Europe from china.
全世界專利的40%都可以在中國科技史找到原型。四大發明，算什么！可惜，那些專利都不是中國的。為什么？