The future of erasable pen writing

1. A 300-word essay describing yourself with an erasable pen and introducing yourself

I always have a crew cut, my eyebrows are thick, and my eyes are dark and bright. Yes, although not big. It fits my face quite well. It looks pretty with your mouth closed. Oh, I forgot to tell you my name. My name is Wang Meng.

When I was in elementary school, I got along very well with my classmates. I don't like to get angry and am cheerful all day long. Being angry will kill your brain cells, so when I have conflicts with my classmates, I can basically tolerate them. When my classmates ask me to do something, I always do my best, but sometimes I am very shy, that is when others praise me. Sometimes I am quite reckless, and my mother calls me a "little daredevil".

Carelessness is a big problem for me, so I often make mistakes in my homework. But I don’t believe it can’t be changed. You see, I will definitely change it in the new semester and change from being "careless" to being "careful".

Reading is my biggest hobby. I can’t put down those novels, magazines, and scientific and technological works - I’m fascinated by them! I am often moved by the plots and characters in the book. Sometimes I sob, sometimes I laugh, and I am completely immersed in the scene.

Even though I am quite thin, I still like sports! I particularly like playing table tennis and am considered a master in the class. I also like music and art. My mother said that I have a wide range of interests.

Okay, that’s all, everyone is welcome to make friends with me. 2. Self-narrative essay with erasable pen, 400 words

Hello everyone, do you know who I am? Haha, I am the rising star of the most popular pen family in school - the famous erasable pen.

I have a streamlined back, a height of 1.8 decimeters, and an "official" hat on my head. I am an upright person, not fancy, I only wear a blue uniform with 05 and an identification number printed on it. My official hat is made of exquisite workmanship and is made of plastic with the word "Baile" written on it. Then, I have to talk about my secret weapon - the eraser at the end. As long as there is a stain on the paper, it can cover it up with lightning speed. Wipe away stains quickly. After wiping off my official hat, my pen tip was ready to go like a missile. The pen refill was filled with saliva. I like to eat paper the most. As soon as I saw the paper, I couldn't wait to drool, and it flowed smoothly. There are circles of scars and pimples on my shell. What are these for? It is to prevent my head and body from becoming separated. My relationship with my little master is so deep that he wipes me clean whenever he has free time and never has to fight with me. Once, the little master accidentally dropped me on the ground, and he hurriedly said, "I'm sorry, are you okay?" Whenever I see the owners of other friends who don't take care of them, I feel very lucky; "It's so great to have such a master." Good! "I am an important writing tool for people. Although I have many advantages, I also have disadvantages. For example, my handwriting on paper does not last long and I am not suitable for archival writing. It’s a bit of a pity!

I hope that the little masters will study hard and help me improve when they grow up, so that it will be more perfect. I believe you will like me even more by then! 3. Essay on the mystery of erasable pens

It’s Friday, school is over.

I walked downstairs carrying my schoolbag. As soon as I got downstairs, I saw the long-awaited "Mathematics Festival" column on display. I ran to the column of "Fourth Grade Mathematics Handwritten Newspaper" in three steps and two steps at a time. I saw the works of many classmates in our class. It was on display, and I was one of them, so happy! If you look more closely, why are the handwritten reports between me and Cheng Jiwen a copy, not the original? I felt very puzzled, and then I admired the works of other grades with great interest. My "Math Diary" was also displayed in the fifth grade column. I was so happy! The hard work these two days has paid off.

On the way home, I felt that the sky was so blue, the grass was so green, the trees were so green, and everything was so beautiful. In the past two days since I got home, I have been thinking about a question: Why are my handwritten newspapers copied, but those of other students are originals? The copy is not as good looking as the original. Not only is the color not as bright, but the bottom of the copy is blue.

After finally getting to school on Monday, I eagerly asked my math teacher. Teacher Huang told me: Because my handwritten newspaper was written with an erasable pen, she didn’t know how to take it. After the glue was applied, all the words on it disappeared. Fortunately, the art teacher left a bottom for the photo, so Cheng Jiwen and I had the opportunity to exhibit our works. When I knew this reason, I regretted using erasable pens to write handwritten newspapers.

When school was over in the afternoon, I went to Teacher Huang’s office. Teacher Huang gave me the handwritten newspaper with pictures and no words as a souvenir.

I got this special "hand-written newspaper" and thought hard. Since the words written with the erasable pen disappeared after the glue was applied, the temperature of the glue would rise, so I put it in the ice room. Can the words "Let it cool down" appear? Thinking of this, I picked up this handwritten newspaper with pictures and no words and put it in the freezer of the refrigerator. The next day, as soon as I got up, I took out the handwritten newspaper from the refrigerator and read it. I was overjoyed with the result! I discovered the secret of erasable pens: words written with erasable pens will disappear when heated and appear when cold.

When I got to school, I took the handwritten newspaper to the teacher and received praise from the teacher and applause from the classmates. How wonderful! This incident made me understand that I need to use more brains and hands-on skills in everything, and the results will be more surprising. 4. Composition: 200 words on the pros and cons of erasable pens

Erasable pens use special polymer materials as ink base materials and are assembled through special processes. During the writing process, the ink forms an erasable pigment film on the paper through the pen tip, and the ink can be erased. The writing can be erased with an ordinary eraser like a pencil within a few hours. The remaining writing will not fade when exposed to water and can be exposed to the sun for a long time. It does not fade and becomes indelible permanent writing after 48 hours, which can be maintained for a long time. The appearance and writing of this product are similar to other ballpoint pens, and are available in various colors such as blue, black, and red.

Erasable pens are a good choice for daily homework, but it is better to choose a signature pen when signing important documents or taking exams. This is because the writing of erasable pens disappears when exposed to high temperatures. As shown in the picture on the right, the handwriting of the erasable pen gradually disappeared after being baked with a lighter. Therefore, to be on the safe side, do not use erasable pens on important documents such as securities and signatures.

Exercise yourself. 5. Essay description, erasable pen, self-introduction essay of 300 words

My name is Chang Ru, she is 8 years old and is already a third grade student.

In order to introduce myself clearly and write the first composition of this semester, I deliberately looked in the mirror and observed myself again and again. I first found the steel tape measure at home and asked my mother to help me measure my height, which was 1.38 meters.

Standing in front of the mirror and looking at it, it can be regarded as slim! Look at my appearance again. ah! It’s quite beautiful! Look, the round face is white and clean, like the fifteenth moon.

The eyes are round and shiny, like two black grapes. A small nose is located in the middle of the face.

The red lips, the corners of the mouth turn up when you smile, like a boat, so beautiful! Look at that short black hair parted in the middle and pinned up with two small yellow clips. It looks so energetic! I also have my own hobbies, like painting, making, and imagining. One afternoon when I came home from school, I was playing on the balcony.

I dug two holes into the two large foam boards that packed the washing machine and put them on my arms. I originally wanted to make a robot, but when I raised my arms, the two foam boards tilted back. I moved my arms back and forth twice, and it felt like I was about to fly.

I thought: How like a dove! I was so happy that I kept flapping my two "big wings" and shouted: "Mom, come and see the pigeons!" My mother ran over and looked left and right, and asked strangely: "Where are the pigeons?" ?" I said, "Mom, do you think I look like a pigeon?" Mom looked at it and laughed and said, "Why are you so funny?" Do you think I am funny? I like being a fun kid.

In third grade. To get to know me, please read below.

I have big eyes, a high nose bridge, and a mouth that adults say is a cherry mouth. I think it doesn’t matter how big or small it is, my eyes are more important, because I like reading books the most. My eyes are watery and beautiful. They are the windows to my soul. In order to protect them, I have worked hard. For example, when reading, I pay attention to the distance between the eyes and the book and take a break in time.

And my hair is as black as black clouds. Mom said: Our family's hair is really the same. You have black hair, I have black hair, and your father still has black hair.

What a family. My hair is as dark as my eyes.

Mom and Dad both said: Your hair is so nice. My hair is not only black but also very strong, as straightforward as my personality.

I'm easy to identify. Whenever you see someone with big eyes and black hair, it's me. Remember, don’t find the wrong one. I am a person who loves to make friends.

I remember that in the first grade, classmate Wei dropped a piece of eraser, and I helped him pick it up. From then on, he regarded me as a friend. So, do I like to make friends? . 6. A 400-word essay on future athletes

I have a dream, which is to become a physical education teacher.

If I were a physical education teacher, I would seriously educate them (their) in physical education. For some students with good sports scores, I will reward them with some fruit candies. For those with poor sports scores, I will have them train every day and give them a lot of homework.

If I were a physical education teacher, I would arrange a sports meeting every week to let those students with good sports scores show off their talents. We also have a competition. The first place will receive a 5 yuan eraser, the second place will receive a 3 yuan automatic pencil, and the third place will receive a book, which will make those students who did not win the prize envious. competing with each other.

If I were a physical education teacher, I would teach them skateboarding in the spring, swimming in the summer, basketball in the fall, and long-distance running in the winter. On rainy days, I would give each four of them a set of chess. When the sun is bright, we can go out and play games.

If I were a physical education teacher, I would find a classmate with good physical education scores to be the class representative, and organize everyone to jump the long rope every morning. During my middle-aged break, everyone and I would go skateboarding outside or play games. Occasionally I have to take up time in Chinese and math classes to let everyone learn to play ball with me.

In short, my dream is to become a physical education teacher, play with everyone, and make good friends with everyone. I will never scold them. If their grades are bad, I will encourage them. 7. The future

Composition: The car of the future--------------------------------- ----------------------------------------------- Today's cars, Because gasoline and diesel are used as fuel, black smoke is often emitted, causing serious pollution and being very unsafe.

So I want to invent a future car that is environmentally friendly, energy-saving, and safer. I think that future cars should be powered by solar energy, so the bodies of future cars should be equipped with solar cells.

When the sun shines, the car will have energy and not only will it drive fast, but it will not emit black smoke. If it is cloudy and rainy, you can use the electricity usually stored in high-energy batteries.

Many people cannot drive. In the future, cars will be autonomous. They can not only identify the road by themselves, but also automatically avoid various obstacles, automatically recognize traffic signals, and automatically stop in case of emergency, ensuring the safety of passengers.

Each car is equipped with a computer with detailed maps of all parts of the country. Wherever the owner wants to go, just click the mouse to find the best route and get there in the shortest time.

Nowadays, the quality of cars is not high, there are too many accidents, and cars often break down on the road. In the future, cars will be able to maintain and repair themselves automatically.

Once a problem occurs, the car will activate an emergency plan and automatically search for repair points through satellites for maintenance and repairs. This makes it much easier for passengers.

This is a dream of mine. I must learn the skills well to make my dream come true. ·····························The Book of the Future In the year 2100, with the rapid development of science and technology, many new things have appeared in Our vision has changed our lives.

You see, there are large-screen high-definition TVs as thin as paper, rice cookers that can talk, cell phones the size of buttons, and shoes that change color and adjust temperature... What fascinates me the most is What I am interested in are the various books with strange functions. The bookstore of the future will be like a big open book.

On the front curtain wall, you will see many colorful, vivid and interesting pictures, introducing newly published books to passers-by, attracting people to enter the palace of knowledge. When you walk into the store, you will first see the "Baby Books" section. Let's take a look at what books are available.

There is a book called "Fruit Dolls", which introduces fruits from all over the world. The pictures are brightly colored. What's even more strange is that this kind of book will emit fragrance. When you turn to the apple picture, it will naturally emit... The aroma of apples, you can smell the aroma of grapes when you turn to the picture of grapes... Such a book with all kinds of colors, flavors and fragrances makes people unable to put it down and make them salivate. Opening a book called "Interesting Animals", you can not only see various animals, but also hear their cries. You think, this is a book, how can your baby not like it? After passing the "Baby Books" area, we came to the "Children's Books" area. The books here are even more interesting.

When you open "Andersen's Fairy Tales", melodious music floats out, bringing you into a dreamy fairy tale world. You can choose to read the text, or listen to the story told by Grandpa Story, or you can Choosing to watch cartoons is amazing. Open "Children's Songs", if you don't recognize those tadpole-like staffs, it doesn't matter. Just click on the song title and the melodious singing will come out, and you can learn new songs easily.

The most interesting book is about calligraphy. It has three modes: "imitation", "improvement" and "appreciation". If your handwriting is sloppy, choose the "imitation" mode in the book. mode, the pen will no longer move around when you write, and you will write beautiful words exactly like the copybook. After passing the "Children's Books" area, you enter the "Adult Books" area.

There are many uncles and aunts who are concentrating on their studies. If you want to learn to be a chef, quickly open the cookbook. Animations will be used to introduce you to various delicious cooking methods. You can smell the cooked dishes.

If you want to learn other technologies, you can learn them easily as long as you find the corresponding books. There will be many more wonderful books in the future society, such as: books that can transform, books that can be eaten, books that can be worn... Do you still want to know their mysteries? (The future home, the Earth in 2050, is a beautiful Earth. It has been rated as a "beautiful planet" by the King of the Universe for several consecutive years.

And I am one of the Earth. Get up every morning, wear Universal clothing.

This is the major invention of this century! This kind of clothing contains nanofibers, which can adjust the temperature according to the weather changes, keeping you cool in the hot summer and cold winter. Feeling warm as spring.

After washing up, go to the kitchen, and the kitchen will measure all the nutrients you need today according to your steps, and make a "universal pill" for you immediately. Plant highly nutritious food to ensure the body's nutrition throughout the day.

After everything is ready, we board the "Happy" spacecraft and go to work in the electronic building. On the road, the spacecraft is driving in the wide space. Above the road, there are novel gardens and well-manicured trees on both sides of the road.

The trees emit oxygen and the flowers emit fragrance. The two gases are mixed together, and there is an indescribable one. The aroma made me intoxicated... My work place is located in the city center.

The office building is a very trendy building, a bit like the famous French building - the Eiffel Tower.

The exterior material of the whole building is silver-gray solar panels, which can absorb the heat of the sun. After passing through the electric energy conversion station in the building, part of the electric energy is supplied to the daily work of the whole building, and the other part is input into the electric energy storage. If you encounter cloudy and rainy days and need to use electricity, you can call out the electricity in the "warehouse", which will be enough for the entire building. After a busy day at the Electronics Building, I was driving the "Happy" spaceship home. I sat on the sofa and suddenly realized: Hey, if you want to create many items that benefit the country, you must work hard and study hard from an early age! The future world is now 3002 years old. As time goes by, I have become a scientist. You will definitely ask: "How did you live for more than 1,000 years?" In fact, I have researched a medicine called "Elixir of Death". "You will probably understand it better after hearing this name.

The ingredients in this elixir are (angelica, knotweed, snake gall, spring bugs, ginseng, snow lotus...) These are just part of the medicinal materials. To make it requires endurance and perseverance, so the price is Well...of course it's expensive! Ha ha! All kidding aside, let me introduce to you what’s coming in the future! The future is a nano era, and you can get there as soon as you think of it. 8. A 350-word essay on the blackboard of the future

Nowadays, teachers always have to write on the blackboard with chalk. This wastes time and chalk. Therefore, I want to invent an automatic display blackboard. . This kind of blackboard is made of a kind of unbreakable glass, like a big screen. On the left side of the blackboard, there is a microcomputer with three buttons: the first one is the input key. Press it and the teacher will The words to be written are displayed on the screen. It can also adjust subjects! There is a subject adjuster next to this button. When taking Chinese class, the teacher will put the adjuster head on the Chinese language, so that the input characters will become clear and neat Chinese characters. Similarly, when taking math and English classes, Numbers or English can be displayed. The second one is the clear key. Its function is to clear the wrongly entered words. The third one is the zoom key. Press it once to enlarge the displayed words, and press it twice to zoom out. The characters are reduced. In this way, even myopic students can take off their glasses and see the words on the blackboard clearly. There is an invisible radio on the right side of the blackboard. This radio communicates with the invisible computer using ultrasonic waves. What does the teacher want to write? , just say it and then press the input button, the radio will use ultrasonic waves to quickly transmit it to the computer, and what you want to write will come out.

How is it? Not bad! I think the teacher will definitely smile from ear to ear when he has this blackboard in the future, because I invented it.