Early in the morning, I was lazily sleeping in bed when I suddenly heard a burst of music wake me up: "Little master, it's time to get up." The home robot is standing by the bed with my clothes. I casually said, "Did you wash the clothes I wore yesterday?" "Don't worry, little master, it's washed, dried and folded." The robot said, while helping me get dressed. At this time, my bed slowly turned into a mini electric car and stopped outside the window. It hangs in the air waiting for instructions. I don't even have to wash myself, the towel is parked in the air, and the toothbrush is parked in the air. After I finished washing, the robot brought me another cookbook, which is a breakfast cookbook. I ordered steak, hamburger, shark's fin and lobster at will, and immediately informed I, Robot to clean the table automatically. I said, "Prepare a spaceship for me. I'm going to the moon soon. " "Little master, the spaceship is already outside the window." I entered the spaceship and pressed the moon sign. When I say "On", the spaceship will fly automatically. It took only three minutes to reach the moon.
After another 20 years, I walked into my alma mater and found that there were no textbooks on the students' desks, all of which were screens. It turns out that as long as the teacher enters the topic in the computer, it will be displayed on the students' screen. Everything is fully automatic. In a school with so many students like ours, only a few teachers are enough, and all the students learn well.
However, all this is just my imagination, but I believe that as long as we all work hard, it will definitely become a reality.
2. Changes in China's scientific and technological development in the fourth grade of primary school What are the gaps between China's leading scientific and technological development and military science and technology in the world: the successful explosion of nuclear bombs, the launch of rockets and satellites, the launch of Shenzhou VI, the development of Godson, and so on.
The rest of science and technology: Many people in China have won the Nobel Prize, and the research level of China scientists in some high-tech fields is ahead of the world, but the level of basic science and technology still lags behind that of developed countries in Europe and America. Since modern western culture flooded into China with blood and fire, it has comprehensively and profoundly influenced China culture.
This paper focuses on the modern transformation of China's traditional culture, and discusses the influence of western culture on China's political concept, economic ethics and scientific and technological modernization. It is believed that contemporary China culture is the crystallization of the blending of Chinese and western cultural contradictions in the past 200 years, and a large number of western cultural factors are active in various fields of contemporary China culture.
Western culture not only affects contemporary China's political ideas, economic ethics, science and technology, but also affects contemporary China's military, philosophy, religion, education, psychology, medicine, sports, music, art, dance, film and television, lifestyle and values. China's contemporary culture is a kind of friendly, open and developing culture, which is absorbing all foreign cultures such as western culture on a large scale and at a high speed, constantly enriching and surpassing itself.
At the same time, the author points out that the constructive effect of western cultural factors on contemporary China culture is enormous, but we can't ignore its destructive side. We should consciously resist western "cultural colonialism", defend the cultural security of the country, and strive to protect and carry forward the national culture of the motherland. China culture created by the Chinese nation has a long history and is brilliant. It is profound and profound, which fully shows the infinite wisdom and broad mind of the people of China.
Western culture is a splendid culture developed on the basis of ancient Greek and Hebrew culture, which fully shows the unique bold, enterprising, democratic and free character of the western nation. These two cultures are excellent human cultures. They infiltrated and promoted each other and made great contributions to the evolution of the whole human civilization.
From the perspective of cultural composition, China's contemporary culture is mainly composed of three parts-the traditional culture of China with Confucianism as the core; Western classical culture and western modern bourgeois culture absorbed since the Ming Dynasty; Marxist culture introduced into China since the May 4th Movement. Visible, China culture is not a closed and rigid cultural system, but a dynamic and open cultural system, it "is on the basis of the main culture, constantly absorb the internal and external multicultural nutrition, and developed in the open.
That is to say, we should absorb and absorb the essence of different cultures on the basis of standard culture, so as to open up different cultures and promote the development of standard culture. In this sense, China culture is a multidimensional and open dynamic structure. "
(The Essence of China Traditional Culture, edited by Zhong Mingshan Zhu Zhengwei, page 8, Xi Jiaotong University Press, 1999).
3. I want to know what high technology will be like in the future. On a fake day, I lay on the turquoise lawn and watched countless small clouds slowly gather in the sky to form a big cloud. I couldn't help saying, "Oh, how comfortable!" Suddenly, a spaceship landed next to me and an intelligent robot came out of it.
I got scared and ran away. Unexpectedly, the intelligent robot quickly came up to me, stopped my way and said with a smile, "Oh, don't be afraid, don't be afraid. I am Jack, a highly intelligent robot from the future world. Our planet invites an earthman to visit our planet every year. Excuse me, would you like to visit our planet? " "Ah, is this true? Great, of course I would! " I am dancing with joy.
Jack took me into the spaceship. Too soon! It took only a few seconds to reach the future world. Wow, the furniture and tools here are much better than on earth! "Hey, what's that?" A beautiful pen caught my eye.
I went into that strange shop and touched that beautiful pen. I'm confused. Although it was beautiful, it was too ordinary, so I asked, "Jack, what is this?" Your planet is so advanced in science and technology, is such an ordinary pen still in use? "Jack laughed at this." Hey, this is our newly invented product. "Jack explained," this is called a universal pen. "
"What does it have?" "Yes, of course, it's amazing. There are many different types of pens in it. If you want a pen, just think about the name' pen' and it will immediately become a brand-new pen for you to use. Not to mention it will change things! " "Change what?" I can't wait to interrupt Jack.
Jack smiled unhurriedly and said, "Ha ha, don't worry, listen to me slowly. This universal pen can change everything, such as TV sets, bicycles and so on.
As long as you press the blue button, it will spit out a boy playing the trumpet. Just say what you want and it will come out. You can also show movies! Do you think it's amazing? ""oh, it's amazing! " I can't help but sigh, "Well, what's the use?" "Of course, I will tell you that every pen is equipped with a word recognition chip and an automatic alarm for typos. As long as you don't know or are mistaken, it will tell you. Awesome! " "With such a pen, you don't have to take a heavy pencil box to school. "
I said excitedly. At this time, I heard my mother crying and quickly opened my eyes. Oh, my mother woke me up! Although this is only a dream, I believe that I will invent a universal pen when I grow up.
4. Changes brought about by scientific and technological development.
Today, the teacher assigned a composition. The requirement is: read the text taught today to mom or dad, ask them to talk about the development brought about by the development of science and technology, and then write down their words.
As soon as I got home, I let go of my voice and shouted, "Mom, please tell me what changes technology has brought us?" Mother said, "Life used to be very hard, unlike now. You can have whatever you want. " "What kind of bitterness?" I asked, puzzled. Mother sighed: "Alas, there used to be a few pencils for a dime, but now they are not like it!" " Some pens cost only tens of dollars. Lin Rong, you are just catching up with the enjoyment period! ""No, a dime can buy several pens. Are those pencils fake? "I'll find out. Mother replied: "People in the past were very satisfied with pens, whether good or bad!" " "Oh, so that's it! People in the past were really hardworking! "
Mom also said: "The previous tuition was less than your pocket money now." I asked, "What was the previous tuition?" "Two yuan". "So cheap!" "In our past, two yuan was hard-won. Now the tuition is several hundred dollars. Compared with the previous life, the present life is really brand-new.
Ah! Life now is much better than before, but life in the future will be a hundred times better than it is now!
5. Future cars
It's only 100 years since the car went from three rounds to four rounds, from luxury goods owned by the rich to ordinary people. What about future cars? In the future, mankind has lived and worked in peace and contentment on various planets. Because of the different terrain and complicated road laying, people invented the floating state of cars. This kind of car is sprayed with air gathered by the engine, but there is a little restriction, so it only rises from the ground 1 m to1.5 m. You can use the car ladder to get up. If you like to run on the road with wheels, you can put down the tires and run on the sub-road.
The above is just an introduction to the change of action, and the following is intelligence. Smart cars are everywhere now. For example, as long as you have intelligent key, you can always know the condition of the car. What about the future? What functions do ordinary cars have? It has the function of speech recognition. You can open the door by gesturing for the license plate number. When the car received the signal of the key, the door opened. You want to have a meal, enter the name of the hotel and arrive at your destination by yourself. You can enjoy the beautiful scenery. If you want to go to go on road trip, you can drive yourself to ensure your safety. There is also a good function, that is, it can automatically reverse the car when parking, and it is absolutely impossible to have a car wash event. When you are tired of sitting, you can listen to music and watch TV with voice recognition function, watch it with 3d projection and play games online. In the future, mankind has lived and worked in peace and contentment on various planets. Because of the different terrain and complicated paving, people invented the floating state of cars. This kind of car is sprayed with air gathered by the engine, but there is a little restriction, so it only rises from the ground 1 m to1.5 m. You can use the car ladder to get up. If you like to run on the road with wheels, you can put down the tires and run on the sub-road.
The above is just an introduction to the change of action, and the following is intelligence. Smart cars are everywhere now. For example, as long as you have intelligent key, you can always know the condition of the car. What about the future? What functions do ordinary cars have? It has the function of speech recognition. You can open the door by gesturing for the license plate number. When the car received the signal of the key, the door opened. You want to have a meal, enter the name of the hotel and arrive at your destination by yourself. You can enjoy the beautiful scenery. If you want to go to go on road trip, you can drive yourself to ensure your safety. There is also a good function, that is, it can automatically reverse the car when parking, and it is absolutely impossible to have a car wash event. When you are tired of sitting, you can listen to music and watch TV with voice recognition function, watch it with 3d projection and play games online. These are intelligence.
After listening to the above words, does it make you wonder what is the driving force of this car? This is divided into two types, namely primary energy and secondary kinetic energy. The primary energy is a self-sufficient device to accelerate the car, the secondary kinetic energy is used inside the car, and the power is provided by the principle that plants absorb carbon dioxide and release oxygen.
6. Why does a 500-word fourth-grade scientific composition turn red? Everyone knows that maple leaves turn red in autumn, like a burning flame, very beautiful.
But you all know why maple leaves turn red in autumn. I was puzzled, so I looked up the book and searched the Internet. I see. It turns out that some chemical changes will take place in deciduous trees in autumn and winter, so that useful substances or some tissues contained in the original leaves can be recycled and stored in stems or roots after decomposition.
Among them, there is a special pigment called anthocyanin, which is a "chameleon" and is red in acidic solution. With the change of seasons, the temperature and sunshine increase or decrease correspondingly, and the main pigment components in leaves also change. Autumn comes, the temperature drops, the light weakens, and the anthocyanin composition changes, while the leaf cell sap of red-leaf trees such as maple leaves is acidic, so the whole leaf is red.
I did another experiment according to the book: I picked some red leaves from the tree. When I got home, I chopped the red leaves. Then I boiled them in water, and the water turned red. Then I added some dilute hydrochloric acid to the water, and the water became redder. Finally, I made a small cup of soapy water and poured it into the water. The red water miraculously turned blue. This experiment proves that red leaves are sour. 2. When it comes to science and technology, people may first naturally think of things that seem out of reach, such as artificial earth satellites, manned spacecraft and atomic bombs. She often gives people a feeling of being above others. In fact, with the rapid development of science and technology, science not only serves the cutting-edge science and technology, but also permeates our daily life more and more.
Technology and life have long been inseparable, and technology is everywhere. During the summer vacation, I participated in the summer camp for young journalists in Beijing.
During the days when we were away from our parents, the teacher asked us to inform our parents about our activities every day. When staying in a hotel in Beijing, it is extremely difficult to find a public telephone because people are different and can't walk around casually. IC phone cards prepared before leaving are often lost.
At this time, I will especially envy those "group friends" who have mobile phones, and I will deeply feel the convenience that mobile phones bring to people. In China Science and Technology Museum, we saw the old hand-cranked telephone that can only be seen in TV and old movies, and we also learned how inconvenient it is for people to contact in the primitive way in the era when there is no telephone.
Every time I see the footage of party member risking his life to send messages and losing contact signals in the battle, I can't help thinking, if I had a mobile phone, wouldn't I have avoided these unnecessary sacrifices? From time to time, I will be more aware of the power of science. Science has not only changed the whole world, but also changed our lives. Science is all around us. A few years ago, people called mobile phones "mobile phones" and pagers "BB machines". Making and owning them is something to show off. It seems that this is a symbol of money and status, and it is synonymous with "big money" and "fashion".
Today, with the rapid development of science, the telephone has spread to thousands of households. From white-collar workers in companies to ordinary vegetable farmers and even people who collect waste products, their dependence on it is increasing day by day. It occupies an increasingly important position and becomes an important means of communication in people's life and work.
It is obvious to all, from fixed telephone to mobile phone, from single communication tool to color screen and video mobile phone, it makes people's life colorful. Seeing this, you can't help sighing at the rapid development of science and technology.
As a new generation of middle school students, while enjoying our new life, we should set up lofty ideals and aspirations, love science, learn science well and create a new life from childhood. Every student here probably has the same dream. When they grow up, they want to be scientists, produce more scientific research results and contribute to the construction of the motherland and human civilization.
This is a lofty goal. In fact, we learn scientific knowledge not only to become scientists, but also to adapt to the ever-changing new life.
Therefore, from now on, we should cultivate a strong interest in learning, study hard scientific and technological knowledge, learn all kinds of cultural classes well, read more popular science books and actively participate in various scientific and technological activities. There is no limit to human wisdom. No matter the Challenger explosion in the United States or the global computer virus upgrade, it will never stop the scientific and technological progress of mankind.
"Knowledge is power", Bacon's famous saying inspired many people who are eager for knowledge. Now, let's use it to motivate ourselves, be a new generation that loves science, and write more brilliant poems for the future of our motherland! Science and technology, as the name implies, is science and technology.
Everyone should be familiar with science and technology, because it is used and served by us and it is closely related to our lives. It not only brings us spiritual pleasure, but also physical comfort.
In this rapidly developing society, science and technology represent a kind of spirit as well as a kind of strength. It represents an innovation and a civilization. It is an important symbol to measure a country's comprehensive national strength, and science and technology occupy an important position in any field.
Science and technology are widely used, including military, biological and aerospace. Technology has been integrated into life and enriched it.
In the street, at home, in the classroom and in the shop, technology has brought convenience to people. It can be said that human beings created science and technology, and science and technology also created human beings. Human beings and technology are interdependent.
Our food, clothing, housing and transportation are inseparable from technology. Let me take you into the wonderful life of science and technology.
Clothes make the man, and everyone needs clothes to dress himself. Take a closer look at the clothes we wear. Acrylic, silk and pure cotton ... are slim, warm and healthy ... countless, which bring us warmth, comfort, health and happiness.
And the production of these clothes is also inseparable from technology. Let's say warm clothes can make you feel warm in the cold winter.
7. How to write the scientific composition of the fourth grade primary school "The Garden of Science, the reverie of life, the discovery of experiments and the mystery of the universe"? . It has condensed the wisdom of countless people and aroused the curiosity of countless people.
I was deeply attracted and took a time machine to the Science Museum: a child has a pair of magical eyes with blue pupils, which can emit light blue light under the illumination of light. He can only see things within 10 meters during the day, but at night his eyes are sharp and he can read and write when he can't see his fingers. After scientific research, it turned out that albinism was at work; The mystery can also be found in a small experiment. Put three peeled apples in three bowls, and there are different changes. Only the apples in the salt water bowl will not turn brown. Do you know why? There are countless mysteries waiting for us to decipher in the vast universe. This time, the seven gods asked the sky and realized a step in space. It is our dream to build a space station in the universe in the future, and the people of China are working hard to realize this dream.
Every flower in the garden represents a mystery, waiting for us to explore. Young masters in the new century let us all have a curious heart to solve the unsolved mystery of the world! As Newton said: the sea of truth, let all the undiscovered things lie before my eyes, let me explore.
8. 450 words in the future new science and technology classroom composition 20 years later, the classroom we study is different. Because of convenience, I transformed our modern classroom.
The bell rang and all the students entered the classroom. Strange, why didn't the teacher come to class It turns out that our teacher changed the broadcast. If the child doesn't listen to the teacher, the chair will turn into a pair of hands to hit you. If you say a few words, the chair will hit you a few times. How terrible! It's noon, it's time to eat.
But there is no canteen in the school. How do we eat? It turns out that the classroom in the school is the canteen. As long as you press the red button for eating, delicious rice and your favorite dishes will be produced on the dining table to prevent you from starving. After school, some parents were too busy to pick us up, so I came up with an idea.
Turn the podium into a school bus to take us home and send us to a beautiful family, so that mom and dad don't have to worry about us. Now you know, the future classroom, the future learning environment.
Let's use our imagination to create the future and create our brand-new living environment! The second article: 200 words of the future classroom composition flies, and it will be 2000000 in a blink of an eye. I am the inventor of the classroom that invented the latest technology in the world. Let me show you! The new classroom in the future will adopt the ideal new building material "foam steel" and concentrate the advantages of several building materials. It is light, hard and resistant to high temperature. The building materials of new classrooms in the future are all high-tech products, which have the characteristics of one light, two thin and three strong. The whole classroom can be demolished. If you want to go out to find friends, you can tear down the classroom and take it with you. At the destination, you can learn and be a toy. This is killing two birds with one stone.
The design of the classroom is unusual. It has anti-theft function. There is a microcomputer in the door. You can tell whether you are the owner of the classroom by pointing to the line. There are six big windows in the front and back of the classroom. These windows can not only provide good lighting, but also generate fresh air and maintain students' health.
This is the classroom I built. How do you feel? In 2039, I took a time bumper car to visit the future classroom in the future world. Bang, I came to the future world.
I was startled when I got off the bus. What appeared in front of me was an alien with melon head, pumpkin body, watermelon feet and cucumber hands. The alien greeted me and introduced himself: "Hello, I am the headmaster of Guaqiu School. Welcome to visit Guaqiu School. "
I quickly said, "Hello, my name is Wang Yanan, and I'm from the earth." He went on to say, "Let me show you the future classroom!" " We came to the future classroom.
He enthusiastically introduced to me that the four walls of the classroom will change patterns every season. And these desks and chairs. There is a screen on every desk, and there is a class every day. You can arrange your own classes according to your own situation. For example, if you want to have a music lesson first, just click with your hand and a teacher will give you a lesson on the screen immediately.
In class, if the sitting posture is incorrect, do small movements, etc. Then your chair will stagger to remind and warn you. Besides, this house is made of new materials. The roof is made of special materials, which can make the room warm in winter and cool in summer. It is also equipped with new glass windows and super security doors. This is the future classroom of the future school.
Information+creation =2 1 century. Let's work together to invent and create.
The future classroom composition 350-word classroom is where we study. This is very important to us. The future classroom must be more spacious and bright than the present classroom, surrounded by windows. Many eye-protecting solar energy-saving lamps are installed on the roof of the classroom, which are both bright and eye-protecting. White porcelain tiles with touch-sensitive function are pasted on the four walls, which can be displayed whenever the teacher talks about something in class, which is convenient and vivid for lectures and stimulates students' interest in learning.
Moreover, teachers don't have to write with chalk in class, just write with their fingers on the touch screen and it will be displayed immediately. This is convenient, environmentally friendly and clean, and the classroom will never be polluted by chalk dust again.
The last classroom must be equipped with "intelligent air conditioner", which can adjust the indoor temperature according to the change of weather. When the weather is hot, "intelligent air conditioner" can absorb hot air and exhale cold air; When the weather is cold, "intelligent air conditioner" can absorb cold air and exhale hot air. Even if the air conditioner breaks down, the standby equipment will continue to work.
By the way, the "smart air conditioner" is equipped with solar energy, so you don't have to pay a penny for electricity! "Pupil sitting chair" can help pupils adjust their sitting posture. There is a cushion on the upright desk and chair, and there is a chip on the cushion, which can control the program adjustment and remind the child to sit up straight. It is really a pleasure to write on such a unique desk and chair in such a classroom.
How's it going? The future classroom is good, right? I believe this will come true in the near future. Article 5: The future classroom composition is 450 words in a blink of an eye, and 50 years have passed.
The world has undergone earth-shaking changes. I think the biggest change is our classroom.
When I walked into the classroom, the first thing I saw was a long blackboard. This blackboard looks nothing special, but it has magical functions.
This blackboard not only does not reflect light, but also can adjust the color automatically. Your eyesight won't have any effect.
The most amazing thing is that if the blackboard is full of words, just press a button and it will be completely removed. Different from before, chalk dust raised a large area.
In the future, the work of students on duty will also stop. Instead, it is the classroom cleaning function.
As long as you press that button, the tables and chairs will automatically rise, and the micro vacuum cleaner on the floor will help you clean the garbage underground. What about garbage? It doesn't matter, the garbage will be transported to a device that turns waste into treasure.
That device will use high technology and advanced technology to turn garbage into exercise books, pencils and erasers.
Each desk is also equipped with a computer. Computers are not for playing.
There are many teaching videos in the computer. The teacher assigned homework, which we can finish on the computer.
The future teachers are all robots, and there is a smart chip in his brain, so he can speak English fluently like human beings.
9. Composition for the fourth grade of primary school "My future career will not be a wizard or a fortune teller, but I can definitely tell you that in 2777, there will be plants and animals not only on the earth, but also on planets such as Mars and the moon. Do you want to know why? The answer is simple, because I lived in 2777, and now I just come back to play in a "time machine".
The increase of population explosion on the earth has attracted more and more scientists' attention. Finally, they showed their killer weapon: emigrating to other planets. I am a glorious group of people on the earth, and I came to the moon praised by countless ancient people. Maybe you will ask, "Isn't the moon a dead planet?" This is the power of high technology: they put a kind of "gravity glue" in a small hole on the earth drill, let the earth drill to the core of the moon, release the "gravity glue" to make the moon attractive, then dig a deep and wide pit on the moon, fill it with water, and then use various new technologies to adjust the rotation and turnover speed of the moon, overcome the temperature difference and activate the moon.
When I get up in the morning, because the gravity of the moon is not as big as that of the earth, clothes float on my body. When I reached out to catch them, my clothes fell into my hand. Get dressed, brush your teeth, wash your face, finish breakfast, turn on the radiation-free computer, enter the "home campus" website and enter the "classroom". The computer teacher began to give lectures, which became more lively and interesting. In a short time, the class was over. I clicked on the "Homework" column, and immediately a red window popped up, all the questions to be done today, and the computer finished. There is a topic: make a complete and fluent sentence with "excitement" and "sweetness" I wrote: I stood on the high podium, holding a heavy trophy, so excited that I shed sweet tears. The computer drew a crimson line under "Sweet" and wrote beside it: Please taste the tears carefully. This really makes me laugh. The study task is finished, but it's only noon. What should I do? I looked at that hot summer and suddenly had an idea: to go swimming. To come to the swimming pool, you don't need a swimming card, just a fingerprint comparison. The bathing suit was also taken in the swimming pool. It's also a fingerprint comparison. No one can steal your clothes and cards. There is also an automatic temperature control system with automatic cleaning system in the swimming pool, which is powered by solar energy and consumes no electricity at all.
Oh, my God! The "time reversal machine" is about to sail. I have to go back. Talk to you next time. Goodbye.
Time flies, and it has reached the year 2063 in a blink of an eye. Time is short. Fifty years have passed. Compared with the past, the scenery now is really even worse. During this period, the biggest difference lies in the means of transportation.
Fifty years ago, the exhaust of cars and the roar of engines echoed the "big traffic jam" at the peak of off-duty passenger flow, which not only affected people's travel, but also damaged people's health, which was really inconvenient.
Now, when you open the door, you will find that there are no pedestrians in the street, and all kinds of transportation have been replaced by an airplane, which neither burns oil nor uses electricity. When you see this, you will ask: What energy do they use? The answer is that the carbon dioxide exhaled by drivers can also produce fresh air.
Next, let's talk about its structure: this kind of aircraft is spherical and adopts the most advanced electronic structure. Volume 1m3, weight 200kg, load 300kg, zero emission. When the top speed is 10000KM, people can reach their destination at an extremely fast speed.
In addition, it has many other functions, such as when it is about to collide with other aircraft in the air, it can calculate the avoidance route within 0.00 1 second and drive according to this route, which is very safe; For another example, there is a "big traffic jam" in the air (the possibility of this situation is one in a billion). If it can't be solved in three seconds, then a four-dimensional space will pop up and reach the destination directly. In addition to the above functions, it can also be used for automatic driving, water use, entertainment and so on. And it's very easy to use.
Didi, Didi, wake me up with an alarm clock. Oh, it was a dream of Conan.