The future development of science and technology in writing by fourth grade primary school students

1. Fourth grade composition: Future Technology. How to write

What will future technology look like? Maybe everyone is curious. Could there be human-like robots in the future? Can cars of the future fly in the sky? Computers can also think, speak, and express emotions? Now let us imagine the future world together!

In the early morning, I was lazily sleeping on the bed. I heard a burst of music and woke me up: "Little master, it's time to get up." The household robot was standing with my clothes. Beside the bed. I said casually: "Did you wash the clothes I wore yesterday?" "Don't worry, little master, they have been washed, dried and folded a long time ago." The robot said, and it helped me put on the clothes while talking. . At this time, my bed slowly and automatically turned into a mini electric car parked outside the window. It was suspended in the air waiting for instructions. I don't even have to do it myself to wash up. The towel stays in the air and the toothbrush stays in the air. After I finished washing, the robot brought me another recipe, which was a breakfast recipe. I ordered steak, burgers, shark's fin, and lobster at will. After I finished eating, I just said "ok" and the robot automatically cleared the table. I said, "Prepare a spaceship for me. I'm going to the moon right away." "Little Master, the spaceship is already outside the window." I entered the spacecraft, pressed the moon sign, and said, "Open." The spacecraft flew automatically and reached the moon in only 3 minutes.

Twenty years later, when I walked into my alma mater, I found that there were no textbooks on the students’ desks, but screens. It turns out that the teacher only needs to voice input the questions into the computer, and it will be displayed on the students' screens. Everything is fully automatic. In a school with as many students as ours, only a few teachers are enough, and all the students Learned very well.

However, all of this is just my imagination, but I believe that as long as we all work hard, this will definitely become a reality. 2. What are the changes in the development of Chinese science and technology in the fourth grade of primary school?

my country’s world-leading scientific and technological achievements and gaps exist in military technology: the nuclear bomb exploded successfully, rockets and satellites went into space, and Shenzhou 6 went into space. , the development and research of Loongson, etc.

In terms of other technologies: Many Chinese-Americans have won Nobel Prizes. Chinese scientists are leading the world in research in some high-tech fields, but basic scientific and technological levels still lag behind developed countries in Europe and the United States. Since the influx of modern Western culture into China along with blood and fire, it has comprehensively and profoundly influenced Chinese culture.

This article focuses on the modernization impact of Western culture on China’s political concepts, economic ethics, science and technology from the perspective of the modern transformation of Chinese traditional culture. It is believed that contemporary Chinese culture is the crystallization of the contradiction and integration of Chinese and Western cultures in the past two hundred years. A large number of Western cultural factors are active in various fields of contemporary Chinese culture.

Western culture not only affects contemporary China’s political concepts, 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, etc. Chinese contemporary culture is an affinity, openness, and development culture. It is absorbing Western culture and other foreign cultures on a large scale and at a high speed to continuously enrich and surpass itself.

At the same time, the author points out: The constructive role of Western cultural factors in contemporary Chinese culture is huge, but we cannot ignore its destructive side and should consciously resist Western "cultural colonialism". Defend the country's cultural security and strive to protect and promote the national culture of the motherland. Chinese culture was created by the Chinese nation and has a long history and splendid culture. It is broad and profound, absorbing things from east to west, and fully demonstrates the infinite wisdom and broad mind of the descendants of Yan and Huang.

Western culture is a brilliant culture developed on the basis of ancient Greek and Hebrew culture, which fully embodies the unique character of the Western nation of unrestrained, enterprising, democratic, and free. These two cultures are both excellent human cultures. They penetrate and promote each other and have made great contributions to the evolution of human civilization as a whole.

From the perspective of cultural composition, contemporary Chinese culture mainly consists of three parts - traditional Chinese culture with Confucianism as the core; Western classical culture and Western modern bourgeois culture absorbed since the Ming Dynasty; five The Marxist culture introduced into China since the Fourth Movement. It can be seen that Chinese culture is not a closed and rigid cultural system, but an open cultural system full of vitality. It "is based on the main culture, constantly absorbing the nutrients of internal and external multi-dimensional cultures, and in the open integration Development.

That is, based on the local culture, absorbing and integrating the essence of heterogeneous cultures, and promoting the development of the local culture by being open to heterogeneous cultures. A multi-dimensional open dynamic structure."

(Page 8 of "The Essence of Chinese Traditional Culture" edited by Zhong Mingshan and Zhu Zhengwei, Xi'an Jiaotong University Press, 1999 edition).

3. Fourth-grade composition: Wonderful thoughts about what high-tech will look like in the future

On a holiday day, I lay on the green lawn and watched the countless small clouds slowly gathering in the sky. , formed a big cloud layer, and I couldn't help but say: "Ah, it's so comfortable!" Suddenly, a spaceship landed next to me, and an intelligent robot walked out of it.

I was so frightened that I ran away. Unexpectedly, the intelligent robot walked up to me quickly, blocked 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 earthling to visit our planet every year. Are you willing to visit our planet? ""Ah, is this true? That's great? Yes, of course I do!" I danced happily.

Jack took me into the spaceship. It was so fast! It only took a few seconds to reach the future world. Wow, the furniture, tools, etc. here are much better than on earth! "Hey, what is that?" A beautiful pen caught my eye.

I walked into the strange shop and touched the beautiful pen. I was puzzled that although it was beautiful, it was too ordinary, so I asked: "Jack, what is this? Your planet's technology is so advanced." Developed, are such ordinary pens still in use?" Jack laughed after hearing this: "Hey, this is our newly invented product." Jack explained: "It's called a multipurpose pen."

"Does it have any advantages?" "Yes, of course it does. It is amazing. There are many different types of pens in it. If you want a pen, just think of the name 'pen' and it will immediately It turns into a brand new pen for you to use. What’s more, it can change into something!” I couldn’t wait to interrupt Jack.

Jack smiled calmly and said: "Haha, don't be anxious, just listen to me slowly. This kind of multi-purpose pen can change anything, such as televisions, bicycles, etc." Wait.

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. It can play movies! Do you think it’s magical?” “Ah, it’s so amazing!” I couldn’t help but exclaim: “Then, what’s the point?” “Of course, I’ll tell you, every pen on it is They are all equipped with a recognition chip and an automatic alarm for typos. It will tell you when you don’t recognize a word or make a mistake. How awesome! “With this kind of pen, you don’t have to carry a bulky pencil case with you when you go to school.” < /p>

I said excitedly. At this time, I heard my mother's cry and quickly opened my eyes. Oh, it turned out to be my mother calling me to get up! Although this is just a dream, I believe that when I grow up, I will invent a marker. 4. Changes brought about by the development of science and technology 250-word composition for fourth grade Xiaolianbi

Changes brought about by the development of science and technology

Today, the teacher assigned a composition. The requirement is: read the text taught today to dad or mom, ask them to talk about the developments brought about by technological development, and then write down their words.

As soon as I got home, I let out my voice and shouted loudly: "Mom, please tell me, what changes has technology brought to us?" My mother said: "The life before was so hard, how can it be like this?" Now, you can get whatever you want..." "What kind of suffering is that?" I asked in confusion. Mom sighed: "Oh, pencils cost a dime in the past. How different are they now! Some pens cost dozens of yuan each. Lin Rong, you are just in time to enjoy your life!" "No way. , you can buy several pens for just one dime, are those pencils fake?" I broke the pot and asked. Mom replied: "People in the past didn't care about the quality of their pens. As long as they had a pen to write with, they were satisfied!" "Oh, that's it! People in the past were so hardworking!"

Mom He also said: "The tuition fees used to be less than your current pocket money." I asked: "How much did the tuition fees cost before?" "Two yuan." "So cheap!" "In our past, two yuan was hard-earned. Now the tuition costs several hundred yuan. Compared with the previous life, the life now is completely new.

Ah! Life now is much better than life before, but life in the future will be a hundred times better than life now! 5. The future

The car of the future

It only took more than 100 years for cars to go from three-wheeled vehicles to four-wheeled ones, and from a luxury item for the rich to something owned by ordinary people. So what will cars look like in the future? In the future, humans have already lived and worked in peace on various planets. Due to the different terrains, Paving roads is more complicated. People invented a floating state for cars. This kind of car uses the engine to gather air and spray it into the air. However, there are some restrictions, so it can only rise 1 to 1.5 meters above the ground. You can use a car ladder to go up. If you If you like to use wheels to run on the road, you can put down the tires and run on the road.

The above is just an introduction to the changes in actions. The following is intelligence. Smart cars are everywhere now. For example, as long as you have a smart key, you can do it. You can know the condition of your car at any time.

In the future, will there be more than just the functions that ordinary cars have? It has a voice recognition function. Make a gesture and say the license plate number to open the door. The car will receive the signal from the key and the door will open. If you want to have a meal, enter the name of the hotel, sit and arrive at the destination by yourself. You can enjoy the beautiful scenery. If you want Self-driving travel is possible, it gives you the ability to drive yourself and helps you stay safe. Another good feature is that it can automatically reverse when parking, so there is absolutely no possibility of a car collision. When you are tired of sitting, you can use the voice recognition function to listen to music and watch TV. You can also watch 3D projection and play games online. These are the things that in the future, human beings have already lived and worked in peace and contentment on various planets. Because the terrain is different and the road paving is more complicated, people have invented a floating state for cars. This kind of car uses the engine to gather the air and spray it into the sky. However, there are some limitations, so it is only only 10 meters above the ground. The height is 1 to 1.5 meters. You can use a car ladder to go up. If you like to use wheels to run on the road, you can put down the tires and run on the road.

The above just introduces the changes in actions, and the following is intelligence. Smart cars are now everywhere. For example, you can know the status of the car at any time as long as you have a smart key. In the future, will there be more than just the functions that ordinary cars have? It has a voice recognition function. Make a gesture and say the license plate number to open the door. The car will receive the signal from the key and the door will open. If you want to have a meal, enter the name of the hotel, sit and arrive at the destination by yourself. You can enjoy the beautiful scenery. If you want Self-driving travel is possible, it gives you the ability to drive yourself and helps you stay safe. Another good feature is that it can automatically reverse when parking, so there is absolutely no possibility of a car collision. When you are tired of sitting, you can use the voice recognition function to listen to music and watch TV. You can also watch 3D projection and play games online. These are intelligence.

After listening to the above content, does it make you wonder what is the power of this car? This is divided into two types, namely active energy and auxiliary kinetic energy. Active energy is a self-sufficient device to accelerate the car, and auxiliary kinetic energy is used to supply electricity inside the car, using the principle of plants absorbing carbon dioxide and releasing oxygen to supply electricity. 6. A 500-word fourth-grade science and technology essay

Why do leaves turn red? Everyone knows that maple leaves in autumn turn red, like burning flames, very beautiful.

But you all know why maple leaves turn red in autumn? I couldn't figure it out, so I looked up books and searched online, and I figured it out. It turns out that some chemical changes occur in the body of deciduous tree species in autumn and winter, allowing the useful substances or part of the tissue originally contained in the leaves to be decomposed and then recycled and stored in the stems or roots.

It contains a special pigment called anthocyanin, which is a "chameleon" that appears red in acidic liquid. As the seasons change, the temperature and sunshine increase and decrease accordingly, and the main pigment components in the leaves also change. When autumn comes, the temperature decreases, the light weakens, and the anthocyanin components also change, while the leaf cell fluid of maple leaves and other red-leaf trees also changes. It is acidic, so the entire leaves are red in color.

I did another experiment according to the book: I picked up a few bright red leaves from under the tree. When I got home, I chopped the red leaves into pieces, and then boiled them in water. When I got up, the water turned red. Then I added some dilute hydrochloric acid to the water, and the water became even redder. Finally, I made another small cup of soapy water and poured it into the water. The red water miraculously turned blue. This experiment proved that the thing that turns red leaves red when exposed to acid and turns blue when exposed to alkali is anthocyanin. In autumn, leaves produce anthocyanins. It happens that the leaves are acidic, so the leaves turn fiery red. In life, there are also There are many things worthy of our observation, as long as we discover them with our heart, we will gain something. 2. When talking about technology, people may first naturally associate it with artificial earth satellites, manned spacecrafts, atomic bombs and other things that seem to be far away from us. They often give people a sense of superiority. In fact, science and technology With the rapid development of science and technology, science not only serves cutting-edge technology, but also increasingly penetrates into our daily lives.

Technology and life have long been inseparable, and technology is everywhere. During the summer vacation, I participated in the Beijing Summer Camp for Young Journalists.

During the few days we were away from our parents, the teacher asked us to report the activities to our parents every day. When checking into a hotel in Beijing, it is extremely difficult to find a public phone because people and land are two different things and cannot move around casually. The IC phone cards prepared before departure are often useless.

At this time, you will be especially envious of those "group friends" who have mobile phones, and you will also feel more deeply the convenience that mobile phones bring to people. In the China Science and Technology Museum, we saw the old-fashioned hand-cranked telephones that can only be seen on TV and old movies. We also learned about how inconvenient it was for people to communicate in primitive ways long ago, in the era before telephones.

Whenever I see scenes in movies of underground party members risking their lives to deliver intelligence, or losing contact signals during battles, I can’t help but think that if there were mobile phones at that time, wouldn’t these unnecessary sacrifices have been avoided? Already? Every time at this time, I will become more aware of the power of science. Science has not only changed the entire world, but also changed our lives. Science is around us.

A few years ago, people still called mobile phones "Big Brother" and pagers "BB machines." Being able to make and own it was something worthy of showing off. It seemed that it was a symbol of money and status. It is synonymous with "rich" and "fashionable".

Today, with the rapid development of science, telephones have spread to thousands of households. From white-collar workers in companies to ordinary vegetable farmers and even scrap collectors, their reliance on them is increasing day by day. It occupies an increasingly important position and has become an important means of communication in people's lives and work.

Everyone has witnessed that from fixed phones to mobile phones, from a single calling tool to color screens and video mobile phones, it makes people's lives colorful. Seeing this, you can't help but sigh at the rapid development of technology.

As a new generation of middle school students, while enjoying the new life, we should establish lofty ideals and ambitions, love science, study science, learn scientific and technological knowledge well, and create a new life from an early age. Every one of our classmates 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 must cultivate a strong interest in learning, work hard to learn scientific and technological knowledge, learn various cultural courses well, read more popular science books, and actively participate in various scientific and technological activities. Human wisdom is infinite. Whether it is the explosion of the US Challenger or the upgrade of global computer viruses, it can never stop human technological progress.

"Knowledge is power." Bacon's famous saying has inspired many people who are hungry for knowledge. Now, let us also use it to encourage ourselves to be a new generation who loves science and write more brilliant poems for the future of our motherland! 3. Technology, as the name suggests, means science and technology.

Everyone should be familiar with technology, because it is used and served around us and is closely related to and closely connected with our lives. It not only brings us spiritual pleasure, but also brings us physical comfort.

In this rapidly developing society, science and technology represents a spirit and a kind of power; it represents a kind of innovation and a kind of civilization. It is an important symbol for estimating the level of a country's comprehensive national strength. No matter what field it is in, science and technology occupies an important position.

Technology is widely used in military, biological and aerospace industries. Technology has been integrated into life and enriched it.

On the streets, at home, in classrooms, and in stores, technology has brought convenience to people. It can be said that humans have created technology, and technology has created humans. Human beings and technology are interdependent.

Our clothing, food, housing, and transportation are all inseparable from technology. Next, I will lead you into the wonderful technological life.

People rely on clothes, and everyone needs clothes to decorate themselves. Take a closer look at the clothes we wear, acrylic, silk, pure cotton...slimming, warm, fitness...there are so many of them, they bring us warmth and comfort, health and happiness.

The production of these clothes is inseparable from technology, let's talk about thermal clothes, which can make you feel warm in the cold winter. 7. How to write a science and technology composition for the fourth grade of primary school

In the garden of science, there are reveries of life, experimental discoveries, and the mysteries of the universe. . It embodies the wisdom of countless people and arouses the curiosity of countless people.

I was deeply attracted and took a time machine to the palace of science: a child had a pair of magical eyes with blue pupils that emitted light blue under the light. He can only see things within ten meters during the day, but his eyes are very sharp at night. He can read and write even if he can't see his fingers. After scientific research, it turns out that albinism is at work; in a small experiment, he also You can discover the secret. Put three peeled apples in three bowls, and there will be different changes. Only the apples placed in the bowl of salt water do not turn brown. Students, do you know the reason? There are still countless mysteries in the infinite universe waiting for us to decipher. This time, the Seven Questions of God have achieved space progress. It is our dream to build space stations in the universe in the future. The Chinese are all working towards this dream. To achieve.

Every flower in the garden represents a mystery, waiting for us to explore. The little masters of the new century let us all have a curious heart to solve the unsolved mysteries of the world. Be a fan! As Newton said: The ocean of truth lets all undiscovered things lie before my eyes for me to explore. 8. A 450-word essay on the new technology classroom of the future

After 20 years, the classroom we study in is different. Because of its convenience, I transformed our modern classroom.

During class, the *** rang and the students all entered the classroom.

Strange, why is there no teacher coming to class? It turns out that our teacher has switched to broadcasting. If the children don't listen to the teacher and talk, the chair will turn into a pair of hands and hit you. If you say a few words, the chair will hit you a few times. How about it? It's scary. ! Noon is here, and it’s time to eat.

But there is no canteen in the school, how can we eat? It turns out that the school classroom is the canteen. As long as you press the red button for eating, fragrant rice and your favorite dishes will appear on the table to prevent you from starving. After school, some classmates’ parents were too busy to pick us up, so I came up with an idea.

Transform the podium into a school bus to take us home and send us to our own beautiful families, so that our parents don’t have to worry about us. Now you know, the classroom of the future, the learning environment of the future.

Let us use our imagination to create the future and build our new living environment! Article 2: A 200-word essay on the classroom of the future. Time flies, and in a blink of an eye, it is 2,000,000 years ago. The classroom with the latest technology has been invented in the world, and I am the inventor. Let me take you to see it! The new classrooms of the future will use the ideal new building material "foam steel", which is developed by combining the advantages of several building materials. It is light, hard and resistant to high temperatures. The building materials of the new classrooms of the future are all high-tech products. , it has the characteristics of one light, two thin and three strong. The entire classroom can be disassembled. If you want to go out for socializing, you can dismantle the classroom and take it with you, and then install it again when you arrive at the destination. It can be used for learning and as a toy. It really kills two birds with one stone.

The classroom design is not ordinary. It has an anti-theft function. There is a microcomputer installed in the door. It can judge whether you are the owner of the classroom by pointing. There are six large windows at the front and back of the classroom. These windows not only provide good lighting, but also produce fresh air to protect the health of the students.

This is the classroom I built. What do you think? Article 3: A 350-word essay on the classroom of the future. In 2039, I took a time bumper car to the future world to visit the classroom of the future. There was a "boom" vibration, and it turned out that I had arrived in the future world.

When I got out of the car, I couldn’t help but be shocked. What appeared in front of me was an alien with a winter melon head, a pumpkin body, watermelon feet, and cucumber hands. The alien took the initiative to say hello to me and introduced himself: "Hello, I am the principal of Guaqiu School. You are welcome to visit Guaqiu School."

I hurriedly said: "Hello, I My name is Wang Yanan, from Earth." He continued, "Let me take you to visit the future classroom!" We arrived at the future classroom.

He enthusiastically introduced to me: the four walls of the classroom change their patterns every season. There are also these tables and chairs. There is a screen on each table. There are same-day courses every day. You can arrange your own courses according to your own situation. For example, if you want to take a music class first, you only need to click with your hand and it will be there immediately. There is a teacher teaching you on the screen.

During class, if you sit incorrectly, make small movements, etc., your chair will shake to remind you and warn you. Moreover, this house uses new materials. The roof is made of special materials, which can keep 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 = 21st century. Let us join hands to invent and create.

Article 4: Future Classroom Essay 350 words The classroom is the place where we study. It is very important to us. The future classroom will be more spacious and brighter than the current classroom, surrounded by Many eye-protecting solar energy-saving lamps are installed on the windows and roofs of the classrooms, which are both bright and eye-protecting. The four walls are covered with white porcelain tiles with touch-sensitive functions. Whenever the teacher teaches in class, it can be displayed, making it easier to teach more vividly and stimulate students' interest in learning.

Moreover, teachers do not need chalk to write in class. They only need to use their fingers to write on the touch screen and it will be displayed immediately. This is convenient, environmentally friendly and clean, and the classroom will no longer be polluted by chalk dust.

The classrooms of the future will definitely be equipped with "intelligent air conditioners", which can adjust the indoor temperature according to changes in the weather. When the weather is hot, the "smart air conditioner" can suck in hot air and exhale cool air; when the weather is cold, the "smart air conditioner" can suck in cool air and exhale hot air. Even if the air conditioner breaks down, the backup equipment will continue to work.

By the way, let me remind everyone that the "smart air conditioner" is equipped with solar energy, so you don't have to spend a penny to pay the electricity bill! "Primary school student's posture chair" can help primary school students adjust their sitting posture. There is a soft cushion on the upright desk and chair, and there is a chip on the cushion that can control the program, adjust and prompt the children to sit up straight. In a classroom like this, it is really a pleasure to sit on such a desk and chair with unique functions and write. .

How is it? The classroom of the future will be great! I believe that it will be realized in the near future. Part 5: A 450-word essay on the classroom of the future. In the blink of an eye, 50 years have passed.

The world has changed dramatically. And I think the biggest change is in our classrooms.

When you walk into the classroom, the first thing you see is a long blackboard.

This blackboard doesn't look like anything special, but it has magical functions.

Not only is this blackboard non-reflective, it can also automatically adjust its color. Your vision will not be affected.

The most amazing thing is: if the blackboard is full of words, just press a button and it will be completely cleared. Unlike before, the chalk dust raised up in a big cloud.

In the future, the work of duty students will also stop. Instead, there is a 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 up the garbage on the ground. What to do with all that garbage? It doesn't matter, the garbage will be transported to a device that turns waste into treasure.

That device will use high-tech and advanced technology to turn garbage into exercise books, pencils, and erasers.

There is also a computer on each table. Computers are not for playing.

There are many teaching videos on the computer. The teacher assigned homework and we could complete it on the computer.

The teachers of the future are all robots. They have a smart chip in their brains, which can be said to speak fluent Putonghua like humans. 9. Composition for the fourth grade of primary school "The Future

I am not a wizard by profession, and I am not a divination prophet, but I can tell you clearly that in 2777, not only animals and plants exist on the earth, but also Mars , there are animals and plants on the moon and other planets. Do you want to know why? The answer is simple, because I live in 2777, and now I just take the "time travel machine" to come back and play.

The explosive increase in population on the earth has attracted the attention of more and more scientists. Finally, they showed their trump card: immigrating to alien planets. I am one of the honored people on earth to have arrived on the moon, which was praised by countless ancient people. Maybe you will ask: "Isn't the moon a dead planet?" This is the power of high technology: they opened a small hole on the outside and a large inside on a very small earth drill and put a "gravitational glue" in it , let the earth drilling machine drill into the core of the moon, release "gravitational glue" to let the moon have gravity, then dig a deep and wide hole on the moon, fill it with water, and then use various new technologies to adjust the moon It increased the speed of rotation and turnover, overcome the temperature difference problem, and activated the moon. As a result, the ozone layer began to form, and plants began to grow. From then on, the moon began to prosper.

When I got up in the morning, the moon's gravity was not as strong as the earth's, so the clothes floated above my body. I stretched out my hand to grab them, and the clothes fell into my hands. Get dressed, brush your teeth, wash your face, finish breakfast, turn on the radiation-free computer, enter the URL of the "Home Campus", enter the "Class", the computer teacher starts giving a lecture, the lecture is lively and interesting, and the more you listen, the more exciting it becomes. , the class was over in a short while, I clicked on the "Homework" column, and a red window immediately popped up with all the questions to be done today. After you finish, the computer will help you correct your homework. One question is: use "excited" and "sweet" to form a complete and smooth sentence. I wrote: I stood on the high podium, holding the heavy trophy, so excited that I shed sweet tears. The computer drew a deep red line under "sweet" and wrote next to it: Please taste carefully what tears taste like. This really makes me laugh and cry. The study task is completed, but the time has just reached noon, what should I do? I looked at the hot summer day and suddenly had an idea: go swimming. When I come to the swimming pool, I don’t need a swimming card. I just need to check my fingerprints. It’s also very easy to get your swimsuit in the swimming pool. It’s also fingerprint-checking. No one can steal your clothes and card. There are also other things in the swimming pool. The automatic temperature control system of the automatic cleaning system is powered by solar energy and consumes no electricity at all.

Oh my God! The "Time Turning Machine" is about to set sail. I have to go back. Let's talk next time. Bye.

Time flies by, and in the blink of an eye it is 2063 AD. Fifty years have passed in recent days. Compared with the scenery in the past, the scenery now is even worse. Among them, the biggest difference lies in the means of transportation.

50 years ago, the exhaust fumes of cars and the roar of engines echoed the "big traffic jams" at the peak of passenger flow after get off work, which not only affected people's travel, but also damaged people's health, and caused a lot of inconvenience.

Nowadays, when you open the door of your home, you will find that there are no pedestrians on the street, and all kinds of transportation have been replaced by an aircraft that neither burns fuel nor No electricity required. Seeing this, you may ask: What energy do they use? The answer is the carbon dioxide the driver exhales, which also produces fresh air.

Let’s talk about its structure next: This aircraft is spherical in shape and uses the most advanced electronic structure. It has a volume of 1m3, a weight of 200kg, a load of 300kg, 0 emissions, and a maximum speed of 10,000KM. People reach their destinations very quickly.

In addition, it has many other functions. For example, when it is about to collide with other aircraft in the air, it can calculate the avoidance route within 0.001 seconds and drive according to the route, which is very safe; for example, If there is a "big traffic jam" in the air (the probability of this happening is one in 100 million), if it cannot be resolved within three seconds, then it will pop up into a four-dimensional space and directly reach the destination.

In addition to the above functions, it can also be used for autonomous driving, water use, entertainment, etc., making it easy to use.

"Didi, didi" the sound of the alarm clock woke me up. Oh, it turned out to be Nanke Yimeng.