On Qin Shihuang
Qin Shihuang was the founding emperor of the first unified dynasty in the history of China, the Qin Dynasty, and an outstanding politician. Won the surname, Zhao, son of the king of Qin Zhuang.
Qin Shihuang was an emperor with greater merits than others. Qin Shihuang annexed six countries and established a centralized monarchy. Qin Shihuang established the county system, which laid the foundation of feudal rule; The cultivation of the equator laid a technical foundation for the access of government decrees in a huge empire. However, Qin Shihuang built Epang Palace and Qin Shihuang Mausoleum. Abusing people's power on a large scale; Burning books to bury Confucianism, suppressing thoughts and destroying culture; Strict laws and heavy taxes have increased the burden on the people.
We can't just think that Qin Shihuang's construction of the Great Wall is a manifestation of abusing people's power and ruling brutality. In fact, the Great Wall was built to resist foreign invasion. On the other hand, the further development of transportation in various places will contribute to the integration of transportation, economy, trade and ethnic groups in the future. Qin Shihuang was just eager for quick success and instant benefit, regardless of the means to live with the people.
Mao Zedong once commented: "In the history of China, it was Qin Shihuang who really did practical things, and Confucius only talked empty words. For thousands of years, Confucius became a mere formality, but actually acted according to Qin Shihuang. Qin Shihuang used Li Si, a legalist and a student of Xunzi. " This idea makes sense, but it doesn't mean that Confucianism is not good. It is a policy of "being soft outside and being rigid inside" to use "Confucianism outside" in later generations. It is easier to govern the world by restraining people with ethics, which is also a lesson that Qin's blind use was finally overthrown.
Therefore, we should treat Qin Shihuang dialectically.
Socially:
Cherish water resources
"Water is the source of life, and we should protect every drop of water." If there is no water, the earth will dry up; If there is no water, we humans may die of thirst; If there is no water, there will be no our beautiful world. We should cherish every drop of water and every tear of Mother Earth.
Only by saving water can our life be better. Water is the source and foundation of life, and human health comes from water first. People can go without food for several days, but they can't go without water for several days. Now, there are 2 billion people in the world who are seriously short of water! In other words, water is the life of 2 billion people. In the world, 50 million children die every year because of drinking unclean water! How shocking this figure is! The water crisis has sounded the alarm for mankind! Saving water and protecting water resources are the top priority now!
How important water is to us! If everyone pays attention to saving water, I wonder how many people will benefit from it; On the contrary, if everyone wastes water resources carelessly, many people may suffer from drinking water difficulties!
Now, because many aspects are polluting water resources, and the pollution is getting more and more serious, human beings can drink less and less water. However, without water, human beings can't survive. This means that we should take active actions to save and protect water resources now. Listen carefully, the Huaihe River is crying, the Yellow River is crying, and the Yangtze River is sighing ... Water pollution is like a chronic disease that plagues rivers, lakes and reservoirs ... The deterioration of water environment directly threatens people's health.
Water resources are the common wealth of mankind and should be protected.
Well, this is the "social" part of history and social studies. )
About the development history of automobiles;
history of theautomobile
With the changes of the times, the progress of society, the continuous upgrading and renovation of culture, the gradual enrichment of material life, the pace of human life is accelerating. At first, the slow-paced and short-distance mode of transportation that only relies on two legs can no longer meet the needs of human beings. So, it was born-the car.
According to historical records, in 2000 BC, a man named Xi Zhong invented the world's first car. This kind of car consists of an axle with two wheels, a frame with axle and a trunk attached to the frame for loading goods.
The original car was human-driven, that is, a rickshaw. Later, people began to use cattle and horse-drawn carts, that is, animal-drawn carts. According to legend, the animal-drawn cart was invented by Shang Tang's ancestors Xiangtu and Wang Hai.
1839, the British Macmillan invented the pedal bicycle. Bicycles are light and convenient. After decades or even hundreds of years of continuous improvement, it is still used by people with its unique and irreplaceable advantages.
In the first industrial revolution, Watt invented the steam engine, and mankind entered the "steam engine era". Many inventors also applied Watt's invention to the design of "bicycle".
In the second industrial revolution, Karl and others invented the internal combustion engine, bid farewell to the history of heavy-duty steam engines and applied it to automobiles. Since then, cars have become a reality.
Now, cars have spread all over the city, and "having a car" has become one of the important signs to measure the quality of life of a family. At the same time, scientists have never stopped improving cars to save energy and reduce pollution.
I wrote all these myself. Teachers leave different topics in different periods, so the classification is a bit messy.