In the fourth grade, my whimsical composition was 450 words, 10.

1. My whimsical composition in grade four is 450 words.

In the future, I will become a scientist and invent a door called "Anti-Occupy Gate", which can prevent other classes from being occupied by some teachers who want to give lectures. "Anti-occupation gate" is also called "anti-occupation gate". This "master" is the three sisters of the main class, the Chinese, math and English teachers.

It looks like this: there is a compression hammer on this door. When the three sisters in the main class want to occupy the class, the hammer will get bigger and hit them on the head. Not too hard, just hammer it a dozen times. It will also automatically scan the class schedule and identify the teacher's fingerprints so as to open the door. Even if someone opens the door to occupy the class, there will be iron gates blocking it, so as to ensure that they will not occupy the class.

I thought: in the future, I may become the gospel of children. This door is also equipped with several pens for administrators. If the door is broken by them, this pen can draw objects like a magic pen, stop them and make 3D things disappear, but I don't think any school wants to buy it. It doesn't matter, it should be a must-have item for every school! Oh, by the way, there is another function. If students want to attend the "three sisters in the main class", they will call the teacher at the door to inform one of the "three sisters in the main class". However, you have to have time.

Well, we only use 10 times a semester, and we can't let it affect our study tasks!

Dear children, do you want such a door?

In the fourth grade, my whimsical composition was 450 words.

Many times I am hungry, my parents are not at home, there are no snacks at home, and I can't cook. I will invent an automatic cooker in the future, so that I can cook by myself when my parents are not at home. The structure of this automatic cooking device is similar to that of a train, with several sections. There is a tank-shaped drum between each section, which is used to transport ingredients, slice and shred. Extremely sharp kitchen knives can even cut coconuts, as well as various cooking supplies, pressure cookers, oil pans, rice cookers … and a small robot serving food.

My automatic cooking machine has many functions! It can not only cook, but also make all kinds of desserts and snacks. It is also very convenient to operate. When you want to eat potato chips, just shout "Little V can help me make potato chips." It goes to take potatoes and put them in the automatic vegetable cutter, and presses the open button. Potatoes came to the first carriage, and immediately two water guns and a brush came to bathe them. After washing, they were transported to the second carriage for slicing. Unconsciously, they arrived in the third carriage, and the potatoes were stained with flour and flowed into the oil pan in the fourth carriage. After frying in the oil pan for three or four minutes, scoop it up with a colander, sprinkle some salt and pepper, and the robot V will serve them.

I hope I can make this cooker one day.

In the fourth grade, my whimsical composition was 450 words.

In the 22 nd century, more and more technologies have come to people's daily lives, such as floating clouds restaurants, earthquake-resistant bubble houses and driverless cars. Science and technology have completely changed our lives. Next, listen to me slowly introduce the future school! First of all, we don't have to worry about our physical and mental health anymore. The gate of our school has long been changed into a fully automatic security gate. Every day when you enter the school gate, all students have to go through the security gate, and the automatic security gate will help you check your physical condition. If you are in poor health, it will show a crying face; If you are healthy, it will smile. If it shows a sad face, go to the infirmary on the right for examination; If it is a smiling face, you can start your day's study and life.

Walk into the beautiful teaching building and stand on the escalator, which will take you to class. Students in high-rise classrooms no longer have to worry about climbing stairs and cramping, which is particularly convenient.

Some students forget to turn off the lights every time they are on duty after school. With this automatic induction lamp, it will bring us a lot of convenience. If all the students leave, this kind of induction light will go out by itself, so don't worry about wasting social resources because of carelessness.

Some students complain that their schoolbags are too heavy every day. In the 22 nd century, there is no need to worry anymore. Schools have long been replaced by electronic textbooks. Not only do we not have to carry schoolbags at school, but we can also learn more extracurricular knowledge through electronic textbooks. Compared with traditional paper textbooks, electronic textbooks not only increase the interest, cultivate students' interest in reading, but also save paper and labor, which is very convenient and environmentally friendly!

Having said that, do you also think it is a very happy and beautiful thing to attend classes in future schools? Are you looking forward to it?

In the fourth grade, my whimsical composition was 450 words.

Every child has a wild imagination and is always curious about all the unknown things. Of course, I am no exception. It is said that there is liquid water on Mars, and Mars is in a livable zone like the Earth. A bold idea flashed through my mind. I want to invent a space immigrant spaceship so that people can visit that fascinating planet. The hull is cylindrical and the bow is conical, and the streamlined hull completely conforms to the aerodynamic principle. The stern is equipped with an interstellar engine, which can make the spacecraft travel quickly in space. Both sides of the spacecraft are also loaded with freely retractable defense weapons. If an uninvited asteroid approaches during driving, it can be destroyed immediately.

At the bottom of this ship, there is a huge warehouse unparalleled in the world, which can carry countless goods. There are many luxurious rooms in the main body of the spacecraft for immigrants to live in. Every room is almost endless, and only a few huge buttons are distributed everywhere.

If you are hungry, just press the green button and a big meal will be delivered to you. Maybe you want to watch TV entertainment after dinner, so please press the yellow button and a TV will appear in front of you, playing interesting TV programs. Press the orange button, the room immediately becomes a library, and rows of bookshelves appear in front of you. What if you want to go shopping? You can do it without leaving home, and the purple button makes it easy for you to shop online. Shortly after placing an order, the robot responsible for delivery will knock on the door and deliver the goods to you. When you yawn and sleep blindfolded, press the blue button and a comfortable bed will appear.

In the fourth grade, my whimsical composition was 450 words.

My family has a big fish tank. There are many colorful fish in it. They swim around happily every day, sometimes eastward and sometimes westward. I often stand by and watch them play in the fish tank. If only I could talk to them. How can I understand their language?

I thought and thought, yes! If you can make an intelligent animal language machine! Appearance, I choose yellow, palm-sized, as easy to carry as a mobile phone. There are some buttons on it, such as "on", "off", "voice control adjustment", "language conversion", "taking pictures" and so on.

How to use it? Of course, the operation must be convenient and simple. For us children, only three steps are needed, and the operation is simple. First "turn on", then press "language conversion", and finally aim at the animals that need to communicate and take pictures. After taking photos, you will enter the chat window of the applet, where you can chat normally, switch languages, ask questions, answer your questions and change the game mode. You can let small animals play with us and adopt them as our pets. Isn't this an interesting idea?

Let's experiment. Look, I aimed at the fish and the photo was taken successfully. At this time, the word "hello" appeared on the screen of the language machine, and the fish greeted me. I also said "hello" to the language machine, and then pressed the switch button to switch my language to Xiaoyu. At this time, the little fish really understood that it vomited two bubbles happily. I introduced myself to her again, huh? Why doesn't it respond? Oh, the original sound is too low. We can press "voice control adjustment". If you think the sound is too low, you can press the button to adjust it-change the volume. Ok, send it again. Xiaoyu heard my introduction. It is happy, and the screen in the language machine shows Xiaoyu's reply: "So your name is' with Xiaoyu', haha! We are good friends now! "

Dear friends, what do you think of my little invention? What else needs to be improved? Give me more advice!

6. In the fourth grade, my whimsical composition was 450 words.

The heavy schoolbags on the way home from school always make us uncomfortable. Is there any schoolbag to put in? A lot of homework can make us feel relaxed. This schoolbag I invented will do. In summer, our bodies are next to our schoolbags and we feel very hot. But this schoolbag I invented can be extremely cool in summer, so that you don't feel a little hot.

When we go to school in winter, we will walk slowly with our schoolbags on our backs. If we act slowly, we will be attacked by the cold wind. Is there any way to make us run fast with our schoolbags on our backs? Of course there is. My schoolbag can also be called portable schoolbag. As the name implies, it is a small thing that can be put in a bag or pocket. You can adjust this schoolbag to the size of your mobile phone, then put it in your pocket, and you can run briskly. If you are worried that the schoolbag in your pocket will fall off, don't worry. This schoolbag won't drop. Unless you take it out by hand, you won't drop it no matter how you take it.

If you keep looking at a color, you will definitely feel bored. But you won't get tired of this schoolbag, because it can change colors, such as yellow, white, blue, black and brown. Don't worry about getting tired of watching too much.

Usually when we come home from school to take out our homework and start writing, we always find that there are many things in our schoolbags that have nothing to do with the homework we want to take. In this way, the schoolbag is only heavy and it is difficult to find homework. My schoolbag won't look like this. If my schoolbag detects something unrelated to your homework, it will quietly put your things in the desk in the classroom.

What do you think of this schoolbag?

7. In the fourth grade, my whimsical composition was 450 words.

Although our classroom is spacious and bright now, it still feels unsatisfactory. I always dream that earth-shaking changes will take place in our classroom in the near future. The building materials of the classroom are all high-tech products, which are light and strong, and can resist 12 earthquake. I believe that studying in such a classroom will make students feel more at ease and don't have to worry about such tragic things as the Wenchuan earthquake. The walls of the classroom can be soundproof, and no matter how loud the noise outside is, it will not affect our study.

The door of the classroom is also unusual. It has both anti-theft function and supervision function. You can judge whether you are the owner of the classroom by your fingerprints, so that thieves have no chance. If you can get to school on time every day, the words "You are great" will appear on the door. A simple compliment can make you start your day's study happily. If you are often late, the words "You big slacker, how many times have you been late this month" will appear on the door. We will happily accept a small warning and gradually get rid of the bad habit of being late.

Install a button on the blackboard. When the tables and chairs are not in order, press the button and they will be arranged in order automatically. The ground is covered with beautiful floor tiles, and the surface is smooth. Dirty things are easy to be swept away, but people will never slip when walking on them.

Windows are also high-tech, which can automatically ventilate and deliver fresh air to the classroom in time. If it is very hot, just press the blue button by the window and the classroom will be extremely cool; Press the red button when it is cold, and it will be as warm as spring in an instant.

I estimate that such a magical classroom will definitely appear, but it also requires us to study hard and learn scientific skills now before we can create it. For the dream, come on!

8. In the fourth grade, my whimsical composition was 450 words.

My whimsy is to invent a multifunctional watch, which is not only fashionable and beautiful in appearance, but also has many functions. The dial of this multifunctional watch is round and the strap is slender. The pattern in the dial is pleasant goat playing on the green grass. The dial of this multifunctional watch is made of glass and metal, and the strap is made of cowhide. The whole watch looks fashionable, beautiful and beautiful.

Next, let's take a look at the functions of multifunctional watches. It not only has the function of an ordinary watch, but also is a miniature mobile phone. When I go to the Children's Palace for classes, I can use it to contact my parents. Its hour hand is a knife. When I want to eat a sweet apple, I open the watch cover, take out the hour hand and press the zoom button. Suddenly a knife appears in front of me.

Its minute hand is a ballpoint pen. When I need to record information when I go out, I take out the minute hand, pinch it gently with my index finger and thumb, and a ballpoint pen will pop up in the minute hand, so I can use it to record. The spring of this watch is a stainless steel toothpick. While enjoying the delicious braised pork, I took out a clockwork toothpick to remove the meat residue between my teeth. Its belt is elastic and can be used to tie hair in hot weather.

Friends, do you like my multifunctional watch with beautiful shape and powerful function?

9. In the fourth grade, my whimsical composition was 450 words.

Every child always has a lot of ideas and rich imagination in his little head, and I am no exception. I want to design a pair of magic shoes. I walk from home to school and from school to home every day. My feet are exhausted after walking several times. I think if I can design a pair of magic shoes, he can walk easily and quickly!

The appearance of this magic shoe is no different from ordinary shoes, and there are many kinds. At first glance, they are bipolar ordinary shoes, but their functions are quite different.

It is voice-activated, just input the map of the city into the cognitive system in the shoe. Say "go to school" if you want to go to school. Shoes are like roller skates. As long as you put them on, they will automatically send you to the school gate in a short time. If you want to go to the supermarket, as long as you say where you want to go, it will guide you to your destination little by little, and you will automatically follow the traffic lights without violating the traffic lights; If you want to cross the river, say "cross the river". At this time, the magic shoe becomes a boat to take you across the river. Not only can it walk on the land, but as long as you say "take off", the soles will spray flames and take you to the sky.

10. My whimsical composition in grade four is 450 words.

Do you feel that sometimes it's too hot and sometimes it's too cold when you get dressed? This dress I invented won't have such a problem. This dress is not much different from ordinary clothes, the color is the same, the appearance is not much different from other clothes, but the function is quite different.

If you wear this dress in winter, it will become very warm, just like in a quilt. When it snows, we usually wear thick clothes, but these clothes are always so heavy that we can't run fast. This dress of mine is very useful. This dress is no different from a shirt, but it is warmer than a down jacket, and it is very cheap.

As we all know, summer is very hot. So we have to wear short sleeves in summer. Is my jacket still useful? Of course there is. In summer. This dress will become extremely cool, just like the feeling in an air-conditioned room, so you can stop sweating, you can enjoy playing with your friends, and your friends will sweat when they run, but you won't sweat when you run. Are you proud?

What if it rains? As we all know, we all take umbrellas when it rains, so can my dress be waterproof? Of course you can. You can wear a hat to keep out the rain. The rain can't penetrate this dress at all. You can play happily in the Tian Yu. Isn't it easier to be more careful where the umbrella will hit than others holding it?

What do you think of this dress?