When I was 6 years old, I was playing downstairs. Suddenly, the sky was covered with dark clouds, a biting cold wind blew, and my little hands were freezing. Seeing that the downpour was coming, I was squatting on the ground stupidly, guess what I was doing? Haha, I am watching the ants carefully. I scratched my little head with my hands. "Hey! Why are there so many ants? It's so strange. What is the white thing on their backs? Out of curiosity, I touched one of the ants with my little hands. As soon as I touched it, the ant started to panic. I was so cowardly that I clapped my hands and cheered." My heart was deeply attracted by this group of ants.

"Boom... boom", the thunder was very deafening, the sky became darker and darker, the ants ran faster and faster, these bursts of thunder made my hair stand on end. , but I still persisted and wanted to see what happened. I squatted there and watched intently, sneezing all the time, and images of ants moving around kept appearing in my mind. Suddenly I thought of people rushing home when it's about to rain. Isn't this the same truth? I'm very happy, because after all, I came up with it myself. But when I think about it, what is it carrying? This requires further observation on my part. At this time, my mother ran to me, hugged me, and said while running upstairs: "Oh, you scared me! What are you doing there? I am worried to death."

When I returned to my warm home, I sat on the sofa and asked my mother breathlessly: "What is the thing that ants carry before it rains?" My mother brought thicker clothes and asked her to I put it on and said: Boy, they are transporting food! Because it's raining, it's hard to find food. That small hole is the nest, and they are moving food into it... Don't do such stupid things next time! I suddenly realized: "Oh! That's it!"

This incident has benefited me greatly. I will never forget the mystery of ants.

I discovered ants

Sometimes, you may find that among the swarms of ants, there are always some "eating and lazy" guys, while other ants work hard, work hard, and come in and out busily. , but what about these "lazy ants"? No wonder people call them "lazy ants" if they don't go out to look for food and spend all day doing nothing but looking around.

However, the facts tell people that it was this lazy ant that was doing nothing all day long. After the ant colony cut off its food source, when the ants who usually worked very hard were helpless, they "stepped forward" and led the ant colony. The partners moved to the new food source that it had already detected. Although lazy ants do not work, they use their wisdom to get everyone out of trouble in critical moments. It can be said that their contribution is greater and more praiseworthy than those of hard-working ants. A biologist once captured all the lazy ants from several groups and put them together. As a result, 80% of the "lazy ants" became hard-working ants. However, 20% of the ants remained "lazy". Where they were originally All the ants in the ant colony stopped working and became chaotic. It was not until those lazy ants were put back that the entire ant colony resumed its busy and orderly work. It can be seen how indispensable lazy ants are in the entire ant colony!

Lazy ants spend most of their time on "reconnaissance" and "research". They can observe the weaknesses of the organization and have the ability to keep the ant colony alive in difficult times. They can avoid investing all the ant strength in carrying food while maintaining a state of exploration of new food, thus ensuring that the colony continues to grow. Get new food sources. The existence of diligent ants is important, but only when diligence and laziness complement each other can the entire group be stronger. The principle of diligence is the principle of laziness, and laziness is not necessarily a wisdom for survival.

Only when you are lazy with chores can you be diligent in thinking. Sometimes, as a student, you don’t need to care too much about the trivial things in life, and you don’t need to be very sophisticated in your studies. There is no need to engage in problem-solving tactics. You only need to learn to analyze, learn to think, and understand things. Therefore, we can be more calm and calm when facing life and study. There is a saying that goes like this, "A person who knows how to do things is not busy, and a person who is busy is not busy." Only by jumping out of the narrow field of vision can we find the key to the problem. Learn the spirit and methods of lazy ants. Only by standing tall can you see far.

Follow up

Do you have any scientific discoveries? Follow up

In nature, there are many animals that are our weather forecast experts. For example, ants will move before it rains. Next, let me introduce my personal experience of seeing ants move.

One time, my neighbor and I went downstairs to play. At this time, the sky became dark, there were large dark clouds, and it was about to rain. I suddenly found a group of ants under the big tree. The ants were carrying some soil and climbing up in groups. I felt strange, why did the ants move?

When I got home, I immediately turned on my computer and checked why ants climb up when it’s about to rain. It turns out that the humidity of the air will be relatively high before it rains. The long-term survival and evolution of ants, creatures that build their nests underground, make them very sensitive to changes in air humidity. When the humidity increases, the ants will stay in low places. If you feel dangerous, you have to move to higher places. Also, ants can predict when it will rain. The ants' nest is too low and easy to get water. Therefore, when it rains, the ants will climb to higher places.

From this point, I know that the ants move because it is about to rain. Newton once said: "Observe, observe, and observe again." The more you observe, the more you will gain. In fact, in nature, There are many mysteries that we need to explore and discover. No wonder some people say: "Observation is the best teacher of mankind." Composition of my little invention

Everyone has great ideas about my little invention Ideal, and if you want to realize your ideal, you must start from small things.

In order to realize my ideal, I started to use my brain and make small inventions... Today, when I was watching TV, I saw some people making decorative hangings on TV. , so I thought: Can I do better than them? able! I must be able to do better! At this time, I started to prepare materials.

I searched and searched for a long time and turned the house upside down before I found a piece of white gauze and some colored threads.

After preparing the tools, I started making decorations.

First, I folded the gauze in half and sewed the remaining three sides together with a needle. I found a piece of paper as big as the gauze and drew on the paper with a colored pen. Put it in the gauze and sew the gauze together.

Then, I used a colored pen to draw a beautiful picture on the other side of the gauze, and then I sprayed perfume on it.

Finally, I tied the numbered ones to the gauze, and hung a bell underneath. Just like that, a sachet was made.

Look! This is my little invention! Does it look good? Third grade essay "My Little Invention" 300 words

On summer nights, nasty mosquitoes always bite people, suck people's blood, spread diseases, and buzz non-stop, making people sleep. Not sleeping well.

I want to invent a special mosquito-killing perfume.

This kind of perfume is made of special materials and can emit a particularly strange fragrance.

As soon as mosquitoes smell this fragrance, they will immediately lose their ability to attack and reproduce. They will no longer be able to suck human blood, let alone reproduce. Moreover, they will also infect each other. Over time, mosquitoes will Slowly perish.

This mosquito zapper can not only eliminate mosquitoes, but is also effective against flies, cockroaches, bedbugs and other pests! However, it is harmless to humans and our friends - poultry, livestock and pests.

Why is this? Because in the process of making perfume, we extracted the genes of these four pests and mastered the "vital gates" of these "four pests". Therefore, the perfume we create is particularly targeted and will definitely become a tool for eradicating the "four pests" in the future. "Super secret weapon"! Having said so much, you may ask, how do you make this perfume? Haha, I can’t tell you now that my perfume is in the trial production stage! When I apply for a patent and put it into mass production, you can buy it everywhere.

Everyone has great ideals, and if you want to realize your ideals, you must start from small things.

In order to realize my ideal, I started to use my brain and make small inventions... Today, when I was watching TV, I saw some people making decorative hangings on TV. , so I thought: Can I do better than them? able! I must be able to do better! At this time, I started to prepare materials.

I searched and searched for a long time and turned the house upside down before I found a piece of white gauze and some colored threads.

After preparing the tools, I started making decorations.

First, I folded the gauze in half and sewed the remaining three sides together with a needle. I found a piece of paper as big as the gauze and drew on it with a colored pen. Put it in the gauze and sew the gauze together.

Then, I used a colored pen to draw a beautiful picture on the other side of the gauze, and then I sprayed perfume on it.

Finally, I tied the numbered ones to the gauze and hung a bell underneath. Just like that, a sachet was made.

Look! This is my little invention! Does it look good? A 400-word essay about my little invention: How was it invented?

Yesterday afternoon, I finished my homework early.

When I had nothing to do, I saw a pile of cans in the corner.

I thought: If those cans were thrown away and they would pollute the environment, why not reuse them? This would not only not pollute the environment, but also allow the waste to be recycled.

It’s the best of both worlds.”

So, I hurriedly picked up the cans and gathered all the materials for small productions.

There are scissors. Transparent tape, colored paper, cardboard, glue, and wool.

I first used small scissors to cut a strip of the same length on the colored paper. > Then wrap the strip around the can and put on a beautiful "new dress"

Then use scissors to cut out four squares on the colored paper.

Use scissors to make a small hole in the lower right corner and the lower left corner, and pass wool through the two holes.

Then I used scissors to cut out four circles to make the wheels of the train.

At this time, I accidentally cut my finger and it was still bleeding. , it hurts so much! I shouted loudly.

I pushed the thing next to me to the ground and wiped the blood on my hands with paper.

He turned his head and looked at the materials that fell on the ground.

I suddenly remembered what the old market said to us: "Don't do things halfway, as long as you persist to the end, you can succeed.

" I sat on the stool and rang for a while , I stood up all of a sudden, picked up the things on the ground, and continued to make my little train.

I used the same method to make 5 more cars, and used wool to connect all the soup doors.

In this way, my little train is finished.

I took the baby or hurriedly ran to my mother's room.

I said: "Mom, look at the little train I ride on.

" After seeing it, my mother smiled sweetly.

I will make more small-scale productions in the future. This will not only improve my hands-on skills, but also allow me to recycle waste. I am so happy.

Today, I learned from this incident that you must persist in doing things to the end. If you are not afraid of difficulties, you will succeed. A 20-word essay on my little invention

My little invention "Multi-Function Pen" As I grow older, I find that more and more myopic students are in our class! There is an indescribable feeling in my heart, so sad! After several months of observation, I finally discovered that the cause of my classmates’ myopia was incorrect sitting posture.

Later, I invented a multifunctional pen.

This multi-functional pen is made of aluminum alloy and is very light. Your hands will not be numb when you write homework! Although its shape is the same as an ordinary pen, let me tell you it does a lot more! There are five buttons on the barrel of this pen. The first red button is the pencil; the second pink button is the pen; the third purple button is the eraser; the fourth green button is the correction fluid; Five are blue buttons that will prevent you from writing as long as you sit incorrectly.

With this kind of pen, you can save a lot of time and money.

Because it does not require you to refill the pencil or fill the pen with ink.

The eraser and correction fluid are unlimited and cannot be used up no matter how much you use them.

After listening to my introduction, do you want to buy it? I'm telling you it doesn't cost more than five cents.

This kind of pen is cheap! The "multi-function pen" was sold out within a minute of its arrival at the supermarket.

I like my inventions. If you have any other good inventions, let’s share them together! Composition on your own small invention

Everyone has great ideals, and if you want to realize your ideals, you must start from small things.

In order to realize my ideal, I started to use my brain and make small inventions... Today, when I was watching TV, I saw some people making decorative hangings on TV. , so I thought: Can I do better than them? able! I must be able to do better! At this time, I started to prepare materials.

I searched and searched for a long time and turned the house upside down before I found a piece of white gauze and some colored threads.

After preparing the tools, I started making decorations.

First, I folded the gauze in half and sewed the remaining three sides together with a needle. I found a piece of paper as big as the gauze and drew on the paper with a colored pen. Put it in the gauze and sew the gauze together.

Then, I used a colored pen to draw a beautiful picture on the other side of the gauze, and then I sprayed perfume on it.

Finally, I tied the numbered ones to the gauze, and hung a bell underneath. Just like that, a sachet was made.

Look! This is my little invention! Does it look good? Technology gadgets Technology is really far away and mysterious to me, but if you really think about it, technology is actually everywhere around us? Usually, students often buy some biscuits at home and eat them as snacks. However, the lid of the box is not good. If it is lightly touched and dropped to the ground, the lid will break immediately and all the biscuits inside will leak out, which is very unpleasant. Easy to clean up.

Also, if the biscuits are stored for a long time, they will spoil easily. If you can’t eat them anymore, you have to throw them away. I spent a lot of time on this, and finally came up with a perfect way.

I don’t know anything about cookies, but I do know a thing or two about boxes.

The reason why the lid of the biscuit box is not tight is because there is air inside, and the biscuits are easy to spoil because they come into contact with air. Just make sure there is no air in the biscuit box.

But how can we evacuate the air? When I opened the drawer to look for information, there was a sudden gust of wind when I opened the drawer. By the way, make a small hole under the lid and something like a drawer on the side. As long as you keep pulling the drawer, the air will be drawn out along the small holes, and the air inside the box will be evacuated, so that the lid will not fall off so easily. No matter how many cookies you buy, only put them in such a box. There is no fear of damage inside.

And you don’t have to remember how many times it takes to get the air out. You just keep pulling and pulling, and when you can’t pull it anymore, the air inside will be gone, and you don’t have to worry about not being able to pull it out. To come out, just pull it out gently.

Also, we have to go to class every day, and the teacher’s hand is cracked because he always holds chalk. The chalk itself is also very harmful to the human body. I feel heartbroken and anxious when I see it. So I want to invent an induction blackboard when I grow up.

The surface of this blackboard is also made of glass, but it does not use chalk to write, but uses a sensor pen. After the sensor pen writes on the blackboard, the blackboard will automatically display the words. The pen itself There are also many options. You can write words in different colors and fonts according to the teacher’s needs. It’s great! Don't worry, the biggest advantage of this blackboard is yet to come, that is, it can save the content of each class. When students don't know the questions, they can check the class notes at any time and play the recording. Some people can't help but ask what to do if there are too many notes. ? It's easy and notes can be deleted based on the needs of the teacher and classmates.

The blackboard can also be connected to the computer to download knowledge of different subjects from the Internet and call it up for direct use when the teacher needs it in class, eliminating the need for > My Little Invention Essay for Grade 4, 350 words

Last night, I had a dream. I dreamed that I was in the twenty-third century.

I looked around and found an uncle waving to me. I hurriedly walked over. When he saw me walking towards him, he said to me: "Hello, kid, you must be confused, right? Don't be nervous, I brought you here with the time-travel device. I want you to see my newly invented skirt. My name is Dr. Li.

After that, he took me away. Entered a laboratory.

I walked into the laboratory and saw a fluorescent yellow skirt. There were three small flowers on the skirt. The first small flower was blue, the second small flower was yellow, and the third small flower was blue. is green.

I asked Dr. Li doubtfully: "Is this the skirt you invented?" Dr. Li answered naturally: "Yes.

" I added: "This is the same as the skirt you invented?" It’s no different from an ordinary skirt, except that it has three more little flowers.

Dr. Li said, “Don’t underestimate these three little flowers. Look at this fluorescent one! The yellow flower is luminous.

When you want to join a tour group or need light at night, you only need to press the fluorescent yellow flower, and the skirt will glow fluorescent yellow. Bright light.

"How does that skirt shine?" I asked.

Dr. Li replied: "That's because this skirt has been absorbing light during the day. As soon as you press the little flower, the skirt will release the light absorbed during the day, so the skirt will glow.

"I said: "Oh, that's it! This skirt will illuminate the road. Doesn't this save the country's power supply?" Dr. Li said: "This is this skirt? One reason why everyone likes it.

Dr. Li said: "This skirt is also waterproof! If you press the blue flower, this skirt will make you underwater. Floating.

"How could this happen?" I asked.

Dr. Li said: "When you press the blue button, the clothes will be filled with gas and lift you up like a life jacket.

"Wonderful, wonderful!" I said I couldn't help but praise him.

"Wonderful, how wonderful!" My mother came over and said to me, it turned out to be a dream. I thought about the dress I saw in the dream several times. Finally, I made up my mind to grow up. This skirt must be invented.

At the beginning of the composition "My Little Invention", you are asked to quote famous quotes

Today, the teacher asked each of us to invent something. What should I invent? After thinking about it, I suddenly had an idea: Why not invent a truck excavator? Not yet! Generally, two vehicles are needed - a truck and an excavator to go to the construction site together, which is too troublesome. In addition, after it rains, there must be a lot of mud on the construction site, and the truck is very easy to slip, so it is difficult to follow the construction site. Get on the excavator. Wouldn't it be much more convenient if you added a truck pocket to the back of the excavator? Just do it, I immediately found some cardboard, some handmade paper, a pair of scissors and a roll of double-sided tape and started making it. Now, please take a look at the process of making a truck excavator! The first step: Make the front of the car. The front of the car is a cube, so I took a piece of purple cardboard and made it into a small rectangular parallelepiped. Then, I cut a few pieces of blue handmade paper to make the car windows, and cut two pieces. Small yellow discs were used as car lights. Finally, I used a pen to draw the car doors. In this way, the front of the car was ready. The second step: making the body. I made the body from a toothpaste box, but the toothpaste box was too long. So I cut off a section. Finally, I wrapped the toothpaste box with yellow handmade paper. In this way, the car body was ready. The third step: making the car pockets. The car pockets are actually easy to make, as long as you Cut the cardboard into a "convex" shape, then fold it and glue it in place. Step 4: Make the tracks. I first cut the black cardboard into five rectangles of the same size, and then rolled them into five A cylinder of the same size. Finally, put a black cardboard strip on the outside that is the same width as the cylinder. In this way, it is ready. Step 5: Make the digging arm. I made the digging arm with a straw and a toy fork. .I first attached the four straws together to form a rectangular parallelepiped, then bent the extra section, and finally inserted two toy forks and it was ready. Now comes the last step: assembly. Attach the front of the car to the In front of the car body, then attach the pockets to the car body, and then attach the crawler tracks to the front of the car and under the car body. Finally, fix the excavating arm on the right side of the front of the car. In this way, the truck excavator is completed. After listening to my introduction , what do you think of the truck excavator I made? An 800-word essay on my little invention

It’s the Spring Festival, and I’m going back to my grandparents’ house for the holidays. The little goldfish at home will be hungry for a few days.

I want to invent an automatic fish feeder that can automatically feed fish every day during the few days we are away from home, so that my baby goldfish will not be hungry.

I thought for a long time and came up with a way.

It is to let a machine put fish food into the fish tank at regular intervals.

For mechanics, I chose to use an electronic watch. With the help of my father, I removed the movement of the electronic watch, leaving only the hour hand, and then lengthened it.

The fish food is placed in a funnel made of straws. As long as it can be stored for 7 days, it will be enough to last until I come back.

I fixed them on a cardboard, and the watch needle passed under the funnel made of straw twice a day, pushing the missed fish food into the small hole in the cardboard, and then fell into the fish tank.

After many debuggings, the fish feeder was completed.

Put the fish food first, and the hour hand passes under the funnel slowly, so slowly.

Finally, it succeeded in pushing two pieces of fish food into the fish tank.

I am so happy, now I can go to my grandparents’ house to spend the Spring Festival with peace of mind. An essay about scientific and technological inventions

When talking about the enlightenment spirit of literature in the late 19th and early 20th centuries, the current research community has been following the "trilogy" similar to that of Liang Qichao and Chen Duxiu, which is about modern China. The process of consciousness awakening is divided into three steps from the shallower to the deeper: from the awakening of scientific and technological consciousness at the artifact level to the awakening of political consciousness at the institutional level to the awakening of ethical consciousness at the cultural level.

This generalization of historical laws naturally does not lose its scientific nature. The problem is that the existing literary history is mainly limited to treating this awakening process as the cultural background for the transformation of modern literature into modern times. Basically, it is in social thought. It is elaborated within the scope of literature, and rarely examined in connection with the evolution of literary spirit and aesthetic consciousness itself.

This is a pity.

The author believes that looking at the changes in the spiritual outlook of modern Chinese people from the perspective of the evolution of literary consciousness is closer to historical reality and more delicate and profound than directly examining their ideological and viewpoints.

On the one hand, ideas and opinions are the direct expression of people’s rational thinking, with a strong logical color; literary creation comes from life, showing the true state of people’s thoughts and emotions from a more perceptual level. Therefore, it is closer to the historical reality and has complex and subtle characteristics.

On the other hand, most of the ideological views handed down are limited to the intellectual class, which is mainly an elite consciousness, and is still quite different from the general psychological conditions of the Chinese people; literary creation is very different. It is not only a reflection of the writer's subjective consciousness, but also influenced by the acceptance of the readers.

At the same time, literary creation is a life-oriented image system. The ideological content and political tendencies it reveals do not completely correspond to the ideological viewpoints of the writer. The personal characteristics of creation It also determines that it is not necessarily in tune with the mainstream political or cultural thought of the times.

Therefore, the Enlightenment social thought, cultural thought and the Enlightenment literary thought did not arise and develop simultaneously. The modern Enlightenment cultural thought originated from the Westernization Movement, while the rise of the Enlightenment literary thought occurred after the 20th century. ①, and its connotation and value are irreplaceable and cannot be included in the former.

This article attempts to specifically examine from the perspective of literary creation how the Enlightenment trend of late Qing Dynasty went from shallow to deep, and how it reflected and added to the three steps of the awakening of Chinese people’s consciousness at the turn of modern times. among.

From saving the nation through science to pursuing civilization. The consciousness of saving the nation through science, characterized by “learning from the barbarians and developing skills to conquer them,” occupied the center of Chinese culture during the entire Westernization Movement, but the literary creation at that time was not consciously aware of it. It was not until the end of the 19th century and the beginning of the 20th century that this theme really attracted the attention of writers and thinkers.

The root cause is probably related to people’s ideology itself during the Westernization Movement.

At that time, people focused on the development of artifacts, while novels/literature were still "little things" and imaginary in people's consciousness.

With the awakening of political consciousness in the late Qing Dynasty, the Enlightenmentists finally linked "enlightenment of people's wisdom" with novels. At this time, political novels were naturally the mainstream of Enlightenment creations.

At the same time, novels reflecting the theme of "saving the country through science" also appeared. Although it came belatedly, it also became an integral part of the enlightenment thought of novels in the late Qing Dynasty and the early Republic of China.

"Save the nation through science and technology" and "save the nation through industry" may have become history as a complete set of social projects or political plans, but as an integral part of the Enlightenment trend or as some "fragments of civilization", in However, in the development of literature, it will not "leave" early, but will continue.

As mentioned before, the time difference and "logical difference" between the Enlightenment cultural thought trend and the Enlightenment literary thought trend are formed historically and are not affected by people's will.

First, a group of intellectuals translated and introduced many Western science fiction novels, such as "Fifteen Little Heroes" translated by Liang Qichao, "Journey to the Moon" translated by Lu Xun, "Journey to the Center of the Earth" translated by Zhou Guisheng, etc. .

Then domestic novelists began to write science fiction novels themselves.

When writers reflect the awakening of scientific and technological awareness and the idea of ??scientific national salvation in the form of novels, there is a common narrative mode, that is, they always vividly describe someone in China who used scientific inventions to make the country rich and powerful. Defeating the world powers finally made the Chinese proud and proud in the world.

Huangjiang Diaosou's "Moon Colony" uses a lot of space to fictionalize some scientific inventions and intersperses them with a love story of joys and sorrows. It not only demonstrates the great power of scientific inventions, but also expresses the importance of science. The ideal of progress.

Compared with the previous work, "New Era" by the owner of Bihe Pavilion is more in line with the science fiction mode.

This work describes China in fantasy a hundred years later. At that time, due to China's advanced weapons, it finally defeated the white countries, forcing the latter to proactively seek peace, and signed a treaty that made the Chinese proud. .

The theme of the novel, which places its hope in saving the country through science and strengthening the people through technology, is extremely clear: "The origin of strength and weakness is uncertain, and it all depends on human efforts to save the world."

Huang Zhenqiu, the protagonist of "Electricity World" by Gao Yang Bucaizi, is an "electricity king". He made a large number of inventions using electric energy, and thus led China to dominate the world.

Not only conquered Europe, but also developed colonies under the sea.

Lu Shi'e's "Xinye Sou Exposure" writes that after conquering Europe, the Chinese also occupied the moon and Jupiter, making them China's material base.

Bao Tianxiao's "Duck Flying Machine" writes about someone being able to fly in the air using the wings of a duck, and his "New Art of Creating Humans" also imagines a way to create humans.

These novels tried their best to exaggerate and advocate the incomparable power of science and technology, so as to place the strong desire of a generation of literati to save the country through science.

Although such bizarre plots and romantic fantasies can express the pent-up feelings in the heart, and also express progressive ideas and patriotism, the prescription of "scientific salvation of the nation" can only be the whole nation. As an integral part of the plan, if it is regarded as a panacea that can cure all diseases, I am afraid it can only be said to be a ***.

Despite this, in the history of modern cultural development, the understanding and evaluation of the value of this batch of works are still low, because the political complex in the ideological circle has always been too heavy and the rational spirit is weak. While saving the nation and saving the nation through revolution are of primary significance, the importance of saving the nation through science has also been overlooked to a certain extent.

Moreover, this kind of science fiction narrative method can sometimes involve issues of civilization construction after the mission of saving the country is completed, which broadens the horizons.

As one of the earliest creations that expresses the enlightenment consciousness of science and technology, Liu E's "The Travels of Lao Can" can be regarded as a representative of this type of subject.

The old disabled person is a person with clear enlightenment...

As I grow older, I find that there are more and more myopic students in our class! There is an indescribable feeling in my heart, so sad! After several months of observation, I finally discovered that the cause of my classmates’ myopia was incorrect sitting posture.

Later, I invented a multifunctional pen.

This multi-functional pen is made of aluminum alloy and is very light. Your hands will not be numb when you write homework! Although its shape is the same as an ordinary pen, I tell you it has many functions! There are five buttons on the barrel of this pen. The first red button is the pencil; the second pink button is the pen; the third purple button is the eraser; the fourth green button is the correction fluid; Five are blue buttons. As long as your sitting posture is incorrect, it will prevent you from writing.

With this kind of pen, you can save a lot of time and money.

Because it does not require you to refill the pencil or fill the pen with ink.

The eraser and correction fluid are unlimited and will never be used up no matter how much you use them.

After listening to my introduction, do you want to buy it? I'm telling you it doesn't cost more than five cents.

This kind of pen is cheap! The "multi-function pen" was sold out within a minute of its arrival at the supermarket.

I like my inventions. If you have any other good inventions, let’s share them! ...

Please indicate the source when reprinting? Primary school students’ composition: My Discovery (Small Discovery)