1. Composition on Science and Technology Life Twenty Years Later Twenty years have passed like water, and I have become a well-known diplomat. It was I who prevented the Third World War!

I flew back from the United States on my private jet to attend the 20-year class reunion. I looked out with a high-tech telescope on the plane. My classmates were almost here. It seemed that I had to speed up. The robot had already seen it, and it

Let the plane move forward at a speed of 2,000 kilometers per hour. It arrived in less than 5 minutes. My plane stopped at the school playground. When I got off the plane, I first saw the monitor Wu Tianhan. She has become a scientist.

Tianhan has established a "Jay Museum" in the universe. You can read books, do research, and play.

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Realized a dream that could not be realized before. After a while, the head teacher, Teacher Hu, came. She was going to take us to tour the campus. We came to the garden. The ground was full of petals. There were peach blossoms, pear blossoms, apricot blossoms. How could there be plum blossoms?

oh!

Our school uses the most advanced "season changer" to enjoy the rain of petals in other seasons in spring, which is really cool. We came to the previous classroom. Ah!

The changes have been huge. The previous blackboards have become LCD screens, the previous desks have become hanging electronic desks, and the previous books have become laptop computers. High-tech, everything has become high-tech. There is no need to carry that heavy weight

With my schoolbag, I only need to carry a computer bag that is only two centimeters thick. After touring the entire campus, I suddenly thought: Isn’t this a campus guided by high technology?

2. A 300-word essay on the development of science and technology in twenty years. The world in twenty years will be high-tech. Cars will become solar-powered, bicycles will also become solar-powered, and the rice cooker will become a

The high-tech rice cooker will automatically cook what you want, and let the robot bring it to you after you finish cooking, so you can enjoy a sumptuous meal.

The house in twenty years' time will be a house that can fly, run, and transform into bigger or smaller ones.

Twenty years later, humans are inventing a cloud. This cloud is exactly the same as the clouds in the sky. As long as someone stands on it, the cloud will fly. If you want to go fast, go as fast as you want.

If you want to be slow, just say slow.

The solar car in twenty years will be very convenient. Ordinary cars cannot prevent theft, but they are very convenient. They can become bigger or smaller. Just press the red clothes on the door to make them smaller, and press the green pants to make them bigger.

Twenty years from now, robots will have jobs, working day and night.

Twenty years later, computers will have many more functions and can be connected to televisions. We can watch whatever we want to see by saying what we want. Twenty years later, the bridge will be built into the Rainbow Bridge. It looks very beautiful when you cross the bridge.

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As long as technology continues to develop and the earth continues to progress, the world will become very beautiful.

3. Me in 20 Years Essay 400 Science and Technology Essay Time flies like an arrow, and the sun and the moon fly by.

Twenty years later, I am already a world-renowned scientist.

With my help, people successfully found the second "Earth" - Mars, and I also invented the "ageless agent" to keep people young forever. Even the president of the International Scientific Research Association admired me.

, calling me an “invention geek.”

On this day, Frank Jack, the old president of the International Scientific Research Association, suddenly called me. On the phone, he explained the harsh environment and the changes in the ozone layer, and asked me to invent an environmental beautification machine on behalf of people around the world.

I never like beating around the bush, so I readily agreed.

But this is a difficult task after all, so in order to seek inspiration, I quietly "sneaked" into the factory. There I saw that in order to protect the environment, many people raised an animal named "Lu", although it

It can purify the air, but it is difficult to maintain and expensive.

I bought one for dissection experiments and found out that it had a filter membrane in its body, which filtered out the germs in the dust to satisfy its hunger.

At this time, I had a sudden inspiration, ran home quickly, and rushed into the laboratory.

After working there for 8 days and 8 nights, I finally developed the first beautification machine.

It mainly absorbs dust, germs and carbon dioxide in the air, and then filters, disinfects, scans and removes it to emit fresh air. One day, a friend came to me and asked me why I didn’t apply for a patent. I smiled.

, said: "My invention was inspired by people. I just invented it into a machine. It is people who should really apply for a patent, isn't it?" 4. Twenty years later, I have been ten years old in high-tech essay.

I haven’t seen my hometown for many years. I don’t know what my hometown has become. How are my parents doing?

I drive the latest electromagnetic float car, which can reach a speed of 220 kilometers per hour and can reach a maximum speed of 390 kilometers per hour.

You are not afraid of crashing or being photographed. This road is limited to 400 kilometers. The car is equipped with advanced detectors that measure within 1 kilometer and will automatically slow down.

It also has automatic operation functions and GPRS global satellite positioning navigation so you don't have to worry about getting lost.

This car is safe, reliable, convenient, simple and environmentally friendly.

This road is newly opened, with an altitude of more than 500 meters.

The road is also very spacious, about 50 meters wide and unobstructed.