Science and technology not only marks the progress of a country, but also is closely related to our daily life, and the benefits brought by science and technology to our life are countless. Let's take a look at six 500-word compositions for the senior high school entrance examination. Welcome to read the reference.
Science and technology 500 words 1 Now with the rapid development of science and technology, human biology has made a major breakthrough in medicine. With the rapid development of human science and technology, people on a planet are enthusiastic and have a higher purpose for biology than their own lives. Thanks to their enthusiasm, they worked out a result. Finally, they were valued by the state, and the state gave them an arduous task.
Human transformation plan
They readily agreed, but they didn't know that they were pushing mankind to extinction. They forget that biological evolution is beyond human control.
After a year of research, they have developed a product that can make people live for hundreds of years without any disease. After their research was completed, the country quickly monopolized the technology, and other countries and wealthy businessmen paid high prices to buy it. At this point, the country made a lot of money. It started mass production and then distributed vaccines to everyone in its own country. In an instant, there are places to vaccinate everywhere, and people can vaccinate as long as they have proof of nationality. That country thinks it is the master of biology, and it breaks the laws of biology. This country will pay for what it has done in the future. Nature won't let them break the rules, and nature is quietly retaliating.
Unfortunately, the good times did not last long. People from other countries come to this country to travel and bring cold virus. At first, the virus can't beat antibodies, but every time there are some upgraded viruses in the body. Over time, these viruses have been graded many times.
Finally, one day the virus broke out and grew in a geometric equation. Infected people will become moss-like plants bit by bit. For a time, the whole city was green, with walls on the streets and upstairs. This country is in a state of panic. Later, the state closed a lot of money to the local area, but it still didn't work. The virus began to spread, and then the whole country was infected, even the president was infected. At the last minute, the president sent a video to the whole universe, in which the president's face has been changed into green plants. He said an unclear sentence: "I wanted to change the biological world and become the master of the biological world, but I was wrong. Humans should not change the biological world indiscriminately. Biology is so powerful that we can't control it. I shut down our planet with the last funds of our country. Please remember never to change it. And don't come to our planet again! "
Composition skills for senior high school entrance examination 500 words 2
Times are changing, and now we are lucky. "Internet Age" and "Information Age" constantly lead the world trend; Every corner of the world is around us; The popularity of television, computers and mobile phones has broadened our horizons and enriched our imagination. The prosperity of science and technology is constantly developing.
But when technology keeps pouring into our minds, do we consider: will technology be too close to us?
In fact, there are many examples in which "life" or even "life" has been changed by technology!
Anne, an 89-year-old retired British art teacher, finally chose to end her life in Switzerland because she could not adapt to digitalization. Anne's departure is too extreme, but the topic of technology changing life has to arouse our deep thinking!
Anne's choice may be an extreme counterexample. As far as things are concerned, mobile phones have rushed into the lives of middle school students like a scourge. When the ringtone of mobile phone replaces the ringtone of class, the concentration in class has already become a "fugue" in my mind; When the touch-screen chat record replaces the cheerful discussion between classmates during class, the academic discussion to enhance feelings becomes the silence of looking down at the screen ... It can be seen that while science and technology are progressing, it has also greatly impacted education and given the society heavy thinking.
The birth of science and technology inspires human beings to explore the universe, and "going to heaven and going to earth" is no longer a dream. At this time, we were dazzled by products with high-tech content. With the rapid development of science and technology, new things emerge one after another, and explosive changes come at us. Maybe this will make us at a loss and unable to adapt and accept it correctly.
Therefore, although technology is great, we should not treat it blindly, but should recognize its advantages and disadvantages and treat it reasonably.
Science and technology is a double-edged sword, which not only changes people's lives, but also affects people's lives. There are many negative effects: people are far from nature, and the contradiction between science and technology and human nature. Even if it can't be changed and accepted temporarily, it should be reconciled slowly in the long historical rolling.
As middle school students, we should take science and technology as the driving force, take science and technology as the goal, strive to learn knowledge from science and technology to the maximum extent, and strive to become a member of the struggle for "science and technology power".
The arrival of the new era has benefited us a lot, and let us constantly improve.
Composition skills for senior high school entrance examination 500 words 3
This morning, I participated in the visit to Linyi Science and Technology Museum organized by our school, and gained a lot.
First of all, it was Miss Li who told us. It is about aviation. It tells us about spacesuits, shenzhou spaceship, how astronauts move in space, and the space station. Among them, I am most interested in how astronauts move in space.
The activities of astronauts in space are different from our usual activities on land. For example, they drink water in space not directly into their mouths on land, but through straws. But do you know why they don't just pour water into their mouths, but suck it through straws? I see. There is no gravity in space. If you don't catch the handrail, you will float in the cabin. So, if you pour water directly, you won't get out. Of course, eating is the same. You can't eat anything like bread crumbs. If you eat something like bread crumbs, it will run into the instrument, which will lose a lot of money and even hurt the pilot's life.
The content of our visit is also very rich. We visited the model of the space suit, and it felt so strange! It is said that an aviation suit costs 30 million yuan! I also saw a model of shenzhou spaceship. Strangely, the orbital module is in front, the return module is in the middle, and the propulsion module is at the end. There is a small satellite behind. There is a video recorder in the small satellite. They will release the small satellite before the pilot returns from the return capsule.
We also saw a model of the space station. It is said that it is mainly managed by the United States and Russia, and Japan and other countries participate. Our country plans to build a space station, which can accommodate six people, and some people will live in it for a long time.
There is also a name called digital furniture, which is very interesting and is the future furniture. For example, if you put rice in the pot in the morning and press the button when you get off work, the pot will open automatically and you can eat it directly as soon as you get home. You put the clothes in the washing machine and press the button again, and the washing machine will start automatically.
We also saw the launching process of the rocket. How spectacular! In fact, the launch of the rocket is very troublesome, and it takes 5 or 6 hours to launch. After the launch, some cabins such as the return cabin and the propulsion cabin will come back. Finally, there was only one satellite left.
Science is everywhere in life. We should observe and think more, master scientific knowledge and make contributions to the motherland!
Composition skills for senior high school entrance examination 500 words 4
Just today, on a sunny day, students from our summer camp came to Shanghai Science and Technology Museum. After getting off the bus, we went straight to the long-awaited mysterious science and technology museum.
I have seen the magnificent Hangzhou Science and Technology Museum and admired the mysterious Beijing Science and Technology Museum, but I have never been to a science and technology museum like Shanghai.
Shanghai Science and Technology Museum is really great! Air bikes, screaming fountains and magic houses are all our children's favorites. Especially the air bike, let us all experience the feeling of being in the air. This is a very difficult experience. If you don't have a good balance, you will fall into the net below. Several girls in our fifth grade are also going to give it a try. When I carefully walked up the transparent steps made of glass and looked down, my heart was pounding and I was afraid that I would fall now. I quickened my pace and kept up with my classmates. I saw a brand-new bike on a strong cable, but the cable was still shaking slightly. Now my heart is tighter. As you can see, when everyone rode their bikes and returned home in triumph, I rode my bike not to be outdone, but I couldn't eliminate my inner fear. I gripped the handle of the bicycle tightly and pressed my foot on the pedal, but I had no strength at all. Finally, with the help of the staff, the bike went with the wind. However, "going up the mountain is easy, but going down the mountain is difficult". I tried to step on the pedal, but the bike wouldn't listen to me. Looking at the sea of people under my feet, my feet were too scared to step on them. Fortunately, the staff was strong enough to pull the bike back. When I got off the bus, the big stone in my heart finally fell to the ground. At this time, I took a closer look and found that there was a scale under the car. This kind of aerial bicycle refers to a mechanical balance principle, so people are unlikely to fall.
Looking back on the bicycle at that time, I really felt a little ridiculous. But let me understand a lot of scientific truth and gain a lot of knowledge. I think: If such bicycles can be used in the air in the future, wouldn't it save a lot of land resources? All kinds of products in the science and technology museum refer to high-tech technology. Just like the future world, the science and technology museum allows us to look forward to the future, realize our wishes and make our future life better.
Composition skills for senior high school entrance examination 500 words 5
Today, our class 2 1 1, 2 12, 2 13, 2 14 visited China Mobile Science and Technology Museum. Today, I have gained a lot and learned a lot of new knowledge.
China Mobile Science and Technology Museum was held in a Central South Campus in Xiangxiang City. When we went, we talked and laughed all the way and had a good time. We are all looking forward to it: what magical technology products are waiting for us?
As soon as I entered the library area, I saw a lot of unknown things like game machines, which were placed there neatly and orderly. The whole museum area is like a big game hall, which instantly attracts our attention. First, I saw a game called Out of a Straight Line. It's just a small disk nested in a big disk. There is a little man on the small disk. When the small disk rotates with the big disk, the villain always becomes a straight line. What's going on here? Through the following instructions of the machine, I know that this is the application of the circle principle. When a small circle is connected with a big circle and rolls along the big circle, if the diameter of the small circle is exactly half of the big circle, the trajectory of any point on the side of the small circle will be a straight line and pass through the center of the big circle.
Then I also saw Pythagorean theorem used in building blocks. Pythagorean theorem is mostly used in engineering, such as repairing houses, wells and making cars.
There are also "hyperbolic grooves" widely used in navigation. This is to determine the position of ships at sea by using the constant difference between one point and two focal points of hyperbola.
After reading so much, of course, the game called "Little Ball Travel" attracted me the most. Compared with other exhibits, this exhibit is more complicated. It consists of 10 various mechanical mechanisms and various tracks. We operate the handwheel and drive various mechanical structures to complete the task of transporting small balls. Many large-scale equipments in our life are composed of such mechanical structures.
There are many interesting things in China Mobile Science and Technology Museum, such as: which ball rolls faster and more obedient, human power generation, hand-eye coordination, optical fiber transmission and other games.
I gained a lot of knowledge and benefited a lot from my visit to China Mobile Science and Technology Museum. Here, I also want to say to more primary school students: China Mobile Science and Technology Museum is really worth visiting, which can increase your knowledge.
Composition skills for senior high school entrance examination 500 words 6
The light at night is the reflection of the lamp; The coolness of the hot summer is the melody of air conditioners and electric fans; The circulation of the world is the transmission of networks.
In my spare time, I eat melon seeds, turn on the air conditioner and watch the computer. I rubbed melon seeds all over the floor. When parents come in, they always forget to say, "Now you are having a good time. You don't have to do anything. " I didn't say anything, but I knew it: "Ancient people wore straw sandals. Why don't you wear them? You always compare modernity with your time. " When I think of this sentence, there are always many associations in my heart: How did people come over before? Nothing. You have to drill wood to make a fire. Aren't you tired? Where do they get bath water in winter? Did they drill wood to make a fire? Alas! Well, then they don't have any high-tech products. Isn't it hand-woven clothes, alas! Think about how happy we are now. Everything is replaced by machines. Ha, except that there is no machine to replace the brain. If there are all kinds of machines in the future, shouldn't I just sleep in bed and wait for the robot to turn on the air conditioner and computer for me and make money for housework? Am I lazy, so infatuated? But if there is, that would be great. Maybe one day, you see, robots are becoming more and more developed year by year, and maybe robots will really replace all our actions and human beings in the future! Technology is endless, full of color, full of happiness and happiness. Gratitude for science and technology, even a thousand words, can not be expressed.
Science and technology is the ladder of human progress; Science and technology is the trajectory of human growth; Technology is the eternal essence of human beings. If technology is a piece of jade buried in the ground, then humans will dig you out; If technology is a meteor in the sky, then humans will chase you; If technology is a bright moon in the night sky, then humans will come to pick you up. I believe that in a very short period of time, human beings will definitely dig technology out of the surface and trace it to the end. Because science and technology are the relaxed society and happy society that human beings dream of. Human beings have lofty aspirations, unshakable determination and perseverance, and look forward to a bright future. Science and technology have changed human life, endowed the world with color, and made our life full of vitality, vigor and motivation. It makes our life wonderful. Technology has changed our lives!