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Anonymous users2024-02-06Computers, satellites, nuclear**, radars, airplanes, earth satellites, nuclear energy, the Internet, televisions, lasers, airplanes, automobiles, genetic engineering, radio, optical fibers, space shuttles, cloning, contraceptives, insulin, robots, silicon wafers, plastics, superconductors, etc.
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Anonymous users2024-02-05There are many achievements in scientific and technological development in the 20th century, such as aerospace, nuclear technology, optoelectronic communications, high-speed rail technology, computer technology, etc.
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Anonymous users2024-02-04The twentieth century was a time or period of scientific and technological prosperity, and the rapid development of technologies included artificial intelligence, robots, mobile phone communications, Internet finance, and other technological products.
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Anonymous users2024-02-0312345, go up the mountain to fight tigers. When the tiger is not at home, it beats the tigress.
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Anonymous users2024-02-02The following cracks are clear:
1. TV. The birth of television is one of the greatest inventions of mankind in the 20th century. In modern society, life without television is no longer conceivable. Black-and-white and color TVs of various models and functions.
The steady flow from assembly lines to factories, schools, hospitals, and homes around the world is miraculously and rapidly changing people's lives.
2. Nylon. American organic chemist Carothers, in 1935 with adipic acid.
Polymers are made from hexamethylenediamine because these two components contain 6 carbon atoms.
At that time it was called Polymer 66.
Introduce. If the dominant science in the 20th century was physics and harmony, then the dominant science in the 21st century is life science.
Life science research is an extremely complex system that can meet the diverse needs of human society, so some people say that the 21st century will be the century of biotechnology.
Significant progress will be made in human genome research. Human Genome Project.
Since the 90s, it has been mainly implemented by the United States, Japan and some European countries in the form of national cooperation, with the ultimate goal of mapping a total of more than 100,000 genes, including human genes, by 2005, so as to uncover the entire genetic code of human inheritance, totaling 3 billion.
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Anonymous users2024-02-011. Where does the text embody the 20th century's "call for wind and rain"?
2. What does the global village illustrate?
3. After learning the text, how do you come to know "calling for wind and rain"?
4. What was human life like before the 20th century?
5. What discoveries and inventions do you think will be made in the 21st century?
Extended Materials: The Century of Wind and Rain mainly talks about the development of science and technology in the 20th century, shows the rapid development of science and technology to human life to bring great changes and brilliant prospects, arouses students' love for science, learning science and exploring science, there are a total of 5 natural paragraphs in the text, which can be divided into three parts.
Part 1 (1st paragraph): The 20th century was a time of turmoil.
Part 2 (2 4 Nature): The Significance of Science and Technology to Humanity.
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Anonymous users2024-01-312. The invention of spacecraft made the world smaller. Spacecraft lead people into the universe, and the exploration of the universe allows us to better understand the world beyond Earth.
3. The popularization of mass media such as radio, television and movies has had a huge impact on mankind, they entertain the public, and they can also disseminate all kinds of political information.
4. The invention of pesticides and chemical fertilizers has greatly increased the output value of agriculture, but also brought new environmental pollution. - The invention of electrical appliances such as washing machines, air conditioners, refrigerators, and televisions has greatly improved people's quality of life.
5. The theory of relativity and quantum mechanics in the field of physics led to the invention of nuclear energy and lasers.
6. Cosmology has made great progress, the "big **" theory was created, and mankind began to study the origin of the universe.
The rise of the Internet has greatly affected human life.
The process seems to be divided into several different factions and stages (some of them are older than the 19th century, but they are written together for easy analysis, such as the Xinhai Revolution and the New Culture Movement). >>>More
The Merchant of Venice, based on Shakespeare's play of the same name, tells the story of Venice in the 15th century. Antonio, a businessman, borrowed money from Shylock, a Jew, to help his friend Bassanio, and wrote a contract to cut off a pound of flesh from his body if he did not repay the loan on time. Bassanio's marriage proposal was successful, but Antonio was unable to repay the loan due to the shipwreck, and was sued by Shylock in court.
The main reason for Japan's economic recession is that they are adjusting, they have given up the relatively backward industries, and now they are mainly focusing on relatively high-end ones, so they have a period of economic recession, in fact, this is just an excess.
Love just has a different flavor from the love in a specific period of our original poverty, such as information resources, material resources, and social environment. Love is best not measured in terms of expensive and cheap. It can only be said that people nowadays have too many answers to choose in their lives, and they can choose again at any time, people's moral bottom line and social environment, and the changes in the material and spiritual world have long been the love of a specific period in the new era.
Diversified development, the combination and decomposition of multiple dance genres.