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Technology is writing beside me.
A lecture on science and technology
College entrance examination composition in which science and technology change life.
Selected five 800-word scientific and technological compositions
Technology makes life better. Good composition 1
Technology changes life. Science and technology is the embodiment of a country's comprehensive national strength, the symbol of a country's soft power, the endorsement of a country's image and the significance of a country's real prosperity. Science and technology have entered thousands of households, and let us appreciate its charm, and life is also rich and colorful because of science and technology.
Rice cookers, refrigerators, computers, networks, mobile phones, etc. , is an indispensable necessity in our lives. Life is inseparable from technology, which makes life better. Come and see the changes in my hometown! My hometown, a once poor mountain village. I can feel new changes every time I go home. In the past, the muddy path became a spacious cement road; Old-fashioned black-and-white TV no longer exists, replaced by satellite TV and "networked" digital TV. Satellite TV can receive programs from more than 50 channels in various provinces and cities across the country, while digital TV has realized the dream of "watching whenever you want" ... many, many changes can be said for days and nights.
In autumn, the fields are full of rice, but no one is busy harvesting. What's going on here? "Boom-"is a small mechanical operation sound from far to near. "The harvester is coming!" Grandma said to me happily, "Look!" I saw a strange-looking machine drive into my field. It is pushed forward by caterpillar tracks at the bottom of both sides. While driving, it "eats" the rice in front of it into its mouth like a dustpan in front, then discharges the straw from the back mouth and leaves the grain in the sack on the right. An hour later, my rice was harvested. Grandma smiled and handed the driver 500 yuan. "Thank you! If it weren't for you, it wouldn't be so fast. " "So expensive?" I'm surprised. "Very cost-effective! It takes at least six or seven strong men two days to harvest this land, and now each person has to pay more than 100 yuan a day. It's so convenient to use the harvester and it costs less! " Grandma explained. Looking at the golden rice just collected, my grandmother, who didn't go to school much, said happily, "This is the benefit of' technology'." Yes, one machine solved the most troublesome problem of rice harvesting in rural areas. There will certainly be more and better agricultural machinery to help farmers do more farm work in the future.
"Be proud of advocating science and be ashamed of ignorance." There was an accident earlier: a 5-year-old boy and a 9-year-old girl in a village had diarrhea because of food poisoning. The child's grandmother was superstitious and called a witch to catch ghosts. The witch tossed and turned, saying that the child was well after three days, and cheated the money and left. Not long after, the little boy died because his condition deteriorated. After learning this, the hospital immediately sent a doctor to treat the little girl urgently, and the little girl finally got out of danger and survived healthily. Superstition is a harmful trick, and medicine can save lives. Today, with the development of medical technology, happy people have more time to enjoy life, and our life is like sesame blossoms.
Technology makes life better. With the continuous development and progress of science and technology, 2 1 century science and technology has entered a higher era. As a member of the people of China, we should respect, learn and develop science and technology, have the courage and determination to devote ourselves to science and technology, and use science and technology to develop the broad mind of all mankind! I believe that our life will be better because of science and technology, and the motherland will become more prosperous!
Technology makes life better.
I have heard such a question: Is the life of ancient people better or that of modern people? If the person asked is me, I will not hesitate to say, "It is modern people who live well because we have technology, and it is technology that makes our life better."
Since ancient times, human beings have never stopped exploring science and technology. No matter from Confucius' "threesome", there must be my teacher. "or" participate in the development of science and technology "; Whether it is from Newton's gravity to Darwin's theory of evolution or Edison's tungsten light bulb, it is all about "technology".
Science and technology make life better, and the era without science and technology is the era of poverty.
We have all read Du Fu's poem "After three months of war, a letter from home is worth a ton of gold." Let's imagine that if Du Fu had a mobile phone, he wouldn't have to wait for the letter from home in the midst of war. We can often see underground party member risking his life to deliver letters or flying pigeons to deliver books in war movies. If there had been a computer at that time, wouldn't it have avoided some unnecessary sacrifices by sending emails directly? If Bai Juyi had a camera, wouldn't he have to miss Jiangnan so hard?
They are poor, compared with them, how lucky we are. We have computers, mobile phones and cameras, which greatly facilitate our lives. However, this is the result of technological development.
Technology makes life better. With technology, we live healthier, and with technology, we live more environmentally friendly.
The development of science and technology affects all aspects of our lives. Such as dietary fiber, high calcium tablets, vegetable juice, fruit juice and so on. In order to satisfy people's tastes, people make vegetable juice into fruit juice, which makes people's lives more nutritious. For example, functional cement in buildings, including rubber cement and color-changing cement. Besides, color-changing cement. This kind of cement can be used not only as a building material, but also for forecasting the weather. Because it can change color according to the weather, it is also called "meteorological cement". It is because of the integration of science and technology that people's quality of life has been improved.
Because of the development of science and technology, we have discovered new energy sources, replaced some raw materials with more serious pollution, and left a smile of nature and people's comfort.
These are the results of the development of science and technology and the crystallization of science. The influence of science and technology on our lives is obvious. The carriage becomes a car, the car becomes a train, the road becomes a high speed, and the moat becomes a thoroughfare. Technology makes our life better. Science and technology make our life colorful, society is changing, science and technology are developing, and our life is progressing!
However, this is the result of predecessors' struggle. As contemporary youth, we should keep exploring, discovering, innovating and making progress, so as to live up to the ancients and the latecomers, develop science and technology and make life better!
Technology makes life better.
The high-tech world is a scientific world. It makes life more convenient and perfect.
In ancient times, people used flying pigeons to send books and bonfires to send letters. The invention of fax machine enables people to get news and information to be expressed by relatives and friends more quickly; At this moment, in a few seconds, the other party can see the information you want to express, saving manpower and material resources. Why not "use"
Not only delivering letters, but also doing housework has become easier. The invention of washing machine makes people more labor-saving and comfortable. In the future, it is possible to invent a fully automatic machine, throw clothes in, add water and some detergent and start washing clothes. After washing, the hanger will be put on automatically, and then the clothes will slide onto the clothesline through the conveyor belt. All we have to do is collect clothes.
At present, tableware has also become environmentally friendly and more convenient. People are aware of the harm and waste of disposable tableware and are using porcelain bowls. Now, it is reported that a new kind of tableware-leaf plate has been developed. This kind of plate has many advantages. First of all, the cost is simple, only three large leaves need to be pressed into a plate shape by a hydraulic press, and then they can be used to hold food after disinfection. This kind of plate is more environmentally friendly than disposable plates, and it seems that it will replace disposable plates in the near future. Another biggest advantage of this thing is environmental protection. After use, you can throw the body in the wilderness at will-on the grass and under the tree. It won't be long before this plate becomes food. This is precisely "falling red is not a heartless thing, but turning into spring mud protects flowers more"!
With the arrival of the new era, people are richer, with the arrival of the new era, people are healthier, with the arrival of the new era, people are more knowledgeable and knowledgeable. Now is the era of robots, sweeping robots, tea picking robots. Everything is available. At the moment, TV is not about the teacher who studies robots, but about Xiao Pang, a multifunctional robot. The arrival of robots makes life more convenient and perfect.
High-tech makes our life more convenient and perfect!
Technology makes life better.
The dawn of 2 1 century shines on the earth, bringing not only the replacement of the century, but also the blending of the times. It bears countless dreams and missions of our nation. What is even more surprising is that around us, learning and life have gradually become inseparable from two words: technology. Science and technology are the hope of national takeoff. Everyone should be familiar with technology. As the saying goes: "Knowledge changes fate, and technology changes life. It is knowledge that makes our destiny better, and it is technology that makes our life more exciting. "
A thousand years ago, people lived a simple and hard life, and their connection needed to be spread by flying pigeons. People don't know what the spiritual world is. They just want to be safe, eat and drink, and maintain a normal life. To this end, people burn incense and worship Buddha and pray for peace. Carriage should be the only means of transportation, but it is expensive, so people have to choose to walk. It takes a long time from Shanghai to Beijing. If you have pneumonia, there is no cure, so people's life span is very short.
Now, our country is getting stronger and stronger, and science and technology are also developing day by day. Various new scientific and technological products have changed from generation to generation, and people's lives have become rich and colorful. After countless experiments, Edison finally invented the electric light, so that people don't have to live at night like fluorescent lamps, and they can work normally at night like during the day ... Since Yuan Longping, the "father of rice", cultivated super rice by farmers, people no longer worry about food shortage ... Since the Wright brothers invented the airplane, people don't have to take a boat, take a car, let alone walk to far places, so they can.
The development of science and technology has brought us such convenience that we have become masters of life and superman Nezha. With the development of science and technology, the long-standing imagination has become a reality today. Richness has replaced poverty, convenience has replaced triviality, and civilization has replaced ignorance. Life with modern technology is so beautiful! Someone invented the mobile phone, which eased people's homesickness in different places; Someone invented the plane and gave up the long journey of people running around outside; Someone invented an anesthetic to prevent people with this disease from suffering another layer of pain. It is technology that makes our earth smaller and smaller. Now we are no longer satisfied with material enjoyment, but more spiritual comfort. Burning incense and worshipping Buddha still exists. What doesn't exist is people's stupid ideas. Once, people marveled at the stars all over the sky; Today, we have been able to send satellites into space. Once, people were thinking about how to gain a foothold in this law of the jungle world; Nowadays, we are thinking about how to survive in this infighting world. Once, we were short of clothes and food; Nowadays, we have enough food and clothes. ...
The medical technology developed at present can cure almost all common diseases in life, and the extended people have more time to expand and enjoy life. The rapid development of natural science and technology such as biology and chemistry has brought rich and colorful spiritual food to people who were originally curious. While exploring and inventing, human beings affirmed their self-worth, and while enjoying the benefits brought by science and technology, they also gained happiness.
Our school has also changed. In the past, teachers wrote on the blackboard in class. Chalk dust was sucked into the teacher's lungs, flew to the teacher's clothes and touched the teacher's hand, which cracked. 20 1 1, electronic cloth appeared in the school. No, teachers don't have to worry about courseware in class, and they don't have to hang wall charts on the blackboard anymore. Just use a white cloth projection. It saves a lot of time and our teaching AIDS are more intuitive. However, the teacher still has to write with chalk. In grade five, there was an electronic whiteboard in our school. Great, teachers can write on it again, and they don't have to worry about chalk dust anymore. In the past, the little teacher wrote on the blackboard. If you don't write much, you have to erase it, and sometimes you have to stand on a stool and write. Now when the teacher can't reach the whiteboard, just click and drag the little hand to change the distance! Why did you change from blackboard to electronic whiteboard? This is the change of technology.
Because Newton discovered the law of universal gravitation, it made mankind take a step towards scientific and technological life; Because of the lever principle discovered by Archimedes, mankind has taken another step towards scientific and technological life; Because Volta invented the battery, it made mankind take another big step towards scientific and technological life. Now, science and technology are integrated with us, we can't do without science and technology, and science and technology can't do without us. Science and technology enable us to understand the world and become a favorable tool for communication and exchange. And technology has become the basis for improving life and making life better, which is closely related to each of us.
Technology makes life better.
In modern society, science and technology have brought us countless conveniences. Television, computer, internet, mobile phone … these high-tech products have become the necessities of our life and work. Our survival and life are inseparable from them.
In the past, people used ancient envelopes and pens to express their thoughts and greetings to distant relatives or friends. It often took days or dozens of days to send letters to distant relatives or friends. This is not only slow, but also easy to lose letters; Now, all we need to do is turn on the computer, turn on the internet, sit in front of the computer, tap the keyboard a few times, click the mouse a few times, and send a letter to distant relatives and friends in a few seconds.
The Internet has connected all our regions, countries and even the whole earth into a global village, which has narrowed the distance between each of us and each country. In the past, the internet was only used by computers, but today, in the 2 1 century, mobile phones can also access the internet, and there are mobile qq…… ...
In the 1990s, almost everyone had a brick-like mobile phone in his hand, commonly known as "mobile phone".
"Mobile phone" is the "originator" of mobile phone. Gradually, with bb and PHS ... With the evolution of mobile phones, the functions on mobile phones are also very powerful. At first, the function of mobile phone was limited to making phone calls, but now, the function of mobile phone has been increasing day by day. Nowadays, mobile phones can not only make phone calls, but also connect broadband. You can enjoy surfing the Internet on your mobile phone, such as Angry Birds and Gold Miners. Some mobile phones also have gps navigators. No matter where you are, just open it and you will find the position you want.
Not only that, but now 3g mobile phones can also realize video chat. On such a mobile phone, if you want to call a friend. Start a video chat, you can see each other and see what they are doing. ...
Mobile phones have become an indispensable part of our lives. With mobile phones, our food, clothing, housing and transportation are all due to technology. Because science and technology are developing and society is developing, a country can be rich and strong. Because of science and technology, our living conditions will continue to improve and innovate; Because of science and technology, we can build a harmonious and stable society.
It all comes from technology.
Technology makes life better.
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