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Science fiction expository
I believe that many people have written compositions, especially as an important classification in composition, which is an article genre with explanation as the main expression. How do we write this type of composition? The following is a selection of five 400-word sci-fi treatises I collected for your reference, hoping to help friends in need.

We are full of fantasy in the 400-word 1 teenager. We should put aside the troubles of endless trivial matters, spread out the suffocating heart bound by study and examination, and spread your fantasy wings.

People have to face reality, but they can't live without fantasy. Because, no matter who you are, you should always have dreams and hopes. Hope is bright and dreams are colorful. Fantasy is sober and a kind of hope whether it can be realized or not.

An illusion in a desperate situation may increase the courage to face difficulties; A beautiful childhood dream may dominate your life.

Fantasy belongs to poets. "I dare not speak loudly, for fear of scaring people." "I want to go with the wind, but I'm afraid it's too cold at the top of the building ..." If I'm not good at fantasy, why should I bring such a free and easy romantic mood?

Fantasy belongs to scientists. Otherwise, there are Goldbach conjecture and plate motion hypothesis?

Literature and science are linked by fantasy, and there is science fiction.

Fantasy also belongs to musicians and artists ... it can belong to everyone as long as you are willing to have it.

Heaven and earth are eternal, and nature is changing rapidly, causing people endless fantasies. Fantasy is the expression of human wisdom, and fantasy may become a reality.

Friend, let your thoughts gallop freely, and let your reverie spread its wings and fly! In this way, we will live more relaxed, more elegant and more brilliant!

Selected five 400-word sci-fi expositions. 2 time machine 1000 years later, wow! 3004 is really unusual. There are floating cars all over the street and everyone is busy. I was walking when I saw a poster. It says to travel to the moon. This is a rare opportunity. If you don't go now, when will it be?

I immediately signed up and started my trip to the moon. I boarded ftl and headed for the moon, and suddenly I came to 20. At an altitude of 440 kilometers, the computer warned that there was still180,000 kilometers from the moon. I came to the moon in an instant.

When was this hotel built on the moon? The signboard of the hotel is engraved with the words "Guanghan Palace Hotel". I think this is probably the hotel opened by the fairy Chang 'e! When I walked in, I saw a figure coming here. She is wearing a colorful coat, wrapped in white gauze and holding a jade rabbit in her hand. How beautiful! "hello! Welcome! " I said, "Thank you!" I went into the hotel, found an empty seat and ordered some of the most famous tables here. In a short time, a table of exquisite dining tables was served. Every dish has its own characteristics, but I don't know how it tastes. I tasted it with a try. Wow! The food here is not only beautiful, but also amazing. I don't know which fairy cooked the food, so I asked the fairy Chang 'e to invite the famous chef here. Isn't this the kitchen god? Why did you become a chef? At this time, a tour group came outside, all of whom were strangers. Oh, my God! I can't believe I saw a UFO. When did Heaven start diplomatic relations? Cowherd and Weaver Girl are riding cows here. You must want to know how they got together. In fact, the heavenly queen has long ordered that all immortals and lovers should be well. This gives Pig Bajie and WU GANG a great opportunity to volunteer for Chang 'e day and night. Hoping to please Chang 'e, the Monkey King arrived in a golden bucket cloud. Look! He is making friends with a laptop that advertised for him this year. Zeus, his wife Hera and his son Hermes drove a Rolls Royce around Tianjie. Xu Xian and Bai Niangzi also eat here. Fahai is here. Careless. They are friends now.

After dinner, I came to Yaochi Wonderland, a scenic spot here. The lotus here is really beautiful, glittering and colorful. I heard that the water here can cure all diseases. I'm going to take some home to try. Then I came to the Flat Peach Garden. The peaches here are really big, and one in 5 yuan is really appetizing.

One day in the sky, ten years on earth. I reluctantly returned to earth by spaceship.

Now the house is very luxurious, including villas, apartments and high-rise buildings ... but what do you think the house will be like in the future? Let's imagine the future house together!

I think the future house should be like this: small size, light weight, easy to carry, like a schoolbag, you can take it anywhere and it is very convenient to use. If you want to travel, you can press the red button and put it in your pocket, so you don't have to bother looking for a hotel. When you need to have a rest, you open your schoolbag. This is a beautiful little house. When you press the green button, the house becomes bigger at once. When you walk in, the robot nanny will ask, "Dear master, what do you want for this meal?" As he said, the robot manipulator brought a menu with Japanese food, Korean kimchi, China Sichuan food, Cantonese food and so on. You point your finger at the dish you want on the menu, and the robot chef will go back to the kitchen to cook. Soon, delicious rice was delivered. When you finish eating, the robot will push the dining car back to the kitchen, so you don't have to wash the dishes. If you want to watch TV, just press the blue button and the robot will take you to the TV room. The walls of the TV room are large-screen, three-dimensional and harmless TVs. You can shout out the TV programs you want to watch at will, and the robot will help you control the TV. Good-looking programs from all over the world can be broadcast to this TV hall, even those that are out of date.

The house of the future is a house made of high-tech tiles and colorful soil. This high-tech tile has a unique function, which can make the room warm in winter and cool in summer, making people feel very comfortable, saving some expenses, saving money and being practical. Colored mud can give people oxygen and beneficial substances, and make people live longer. This kind of colored clay has many shapes, you can choose it at will, it can be used inside and outside, and it can also be decorated very luxuriously and lovely.

There is also an invisible door in the room. All you have to do is say the password, the door will open automatically and you will come to another room. This room is very big, with many recreational facilities, including swimming pool, table tennis table and billiards, which will make you relax. The curtain in the room is like a changeable painting, which will change the scene according to the preferences of the host or guests, so that you will feel immersive and relaxed when you see it. It's time for bed. The pillow will automatically massage you and make you feel comfortable. At this time, if you press the purple button, the bed will play a lullaby for you and let you enter a sweet dream. As long as you are asleep, there are guards everywhere in the room. If a thief comes, the guard will corona the thief and call the police. When you are asleep, the lights in the robot club are all turned off, except for the necessary lights in the corridor, which will help your air conditioner to weaken the wind and let you sleep until dawn.

There are many kinds of houses in the future, waiting for us to create. I will work hard, come on!

Five-choice 400-word science fiction Expo 4 "Ding" The bell rang. Look, the teacher standing at the door is Miss Fang: She has charming little eyes, a small nose and a small cherry mouth! We all like her. Strangely, Mr Fang doesn't walk like before today: he wobbles and swings from side to side. Like a robot! Oh, stop it. It is really a robot teacher. It is coming to teach us, and we are all very happy. Ah, high technology is high technology. Robot teachers not only look like our teachers, but also have many special functions, such as: there are supervision mirrors on them, which may supervise students who are not serious; When it wants to write on the blackboard, it doesn't need chalk, just press the hidden button on it, and the words it wants to write immediately appear on the blackboard. The handwriting is vigorous and powerful, very beautiful! ..... oh, my god. It's amazing!

In class, the machine teacher said, "Today our class is the goddess of mending the sky." Say that finish, it waved and suddenly the whole classroom became dark. Everyone is very scared. At this moment, a thunderous voice suddenly appeared in the classroom under discussion: "boom, boom!" ....................................................................................................................................................... ........................... Then, a picture appeared on the blackboard: there was a big hole in the high sky, and there was a fire in the hole, which scorched the earth. Many people were surrounded by the fire on the mountain. Everyone was very worried after seeing it, hoping that a fairy would come to save them. Everyone's hopes can come true. On the screen, there is a goddess carrying Yun Fei. Her name is Nuwa. Nu Wa couldn't bear to see people with high and stable yields suffer such torture, so she made up her mind to save lives. There is only one way: find colorful stone, refine colorful stone and pour it into the sky. So Nu Wa, regardless of hard work, went to look for colored stones. She found colorful stones in the waters of Qian Shan. Next, she will smelt colorful stones, and Nu Wa will smelt them for several days and nights. The fire blackened her beautiful face and her hands were covered with thick cocoons, but she didn't care. Seeing this, the students can't help worrying about Nu Wa again. Finally, Nu Wa smelted the colorful stones into a very thick liquid, and finally succeeded! The students are happy for her. Nuwa put the liquid in the basin, aimed at the big hole and spilled it all over the floor. I saw the golden light, and the big hole was fixed! Everyone kept clapping for Nu Wa and shouting: "Nu Wa is great, long live Nu Wa! "The robot teacher asked everyone," Do you have anything to say to Nu Wa? "Everyone scrambled to answer, you, I, made a fuss about. The bell rang, and everyone was reluctant to leave!

Selected five 400-word sci-fi treatises. Thanks to my little blood relationship with Grandpa Time, he accepted my bribe with a kiss and gave me an exception to take me to the 22nd century to see the new century.

Grandpa Time took me to the national R&D department and saw the fruits of their labor on the table-some "ordinary" clothes!

I can't help being taken aback. I quickly tugged at grandpa time's clothes and asked in a low voice, "grandpa time, are there only a few clothes they have worked so hard to make?"

Grandpa Time smiled, patted me on the head and said, "Silly girl, don't underestimate these clothes. They are made of cosmic fibers. They not only have the color appearance that can be changed at will, but also have super cosmic ability. This kind of clothes has a thin sterilization film inside. If harmful bacteria invade the human body, the sterilization film will play the role of destroying these harmful bacteria. In this way, the owner who wears this kind of clothes can prevent various diseases and be healthy forever. With this kind of clothes, human beings can avoid diseases and truly realize the myth that everyone dies. It can also help mankind to resist natural disasters. When encountering an irresistible earthquake disaster, as long as you pull the decorative rope on the collar, the clothes will absorb enough hydrogen energy in the air in the shortest time and take you into the nearest air city to ensure your personal safety. More importantly, the fibers of this kind of clothes are connected to the global network. After people put it on, it is connected with human muscle texture. As long as you have a problem that you can't solve, it will input the correct answer into your brain. Children in the 22 nd century can learn everything quickly and well because of this kind of clothes ... "

"Wow, so many. I wish I could have a dress like this. Grandpa, can I take a dress from this century back? " "Ha ha, don't be greedy. Bringing you here ruined grandpa's reputation for fairness. If you want to have such a dress, it is not without opportunities to work hard in this area from now on. Nothing is static, the key is to see how hard you work. Hehe, it's time. Come back with me. " Grandpa waved his big sleeve, and we returned to 2 1 century. I look the same as before, but I secretly made up my mind: I must study hard and use my own skills to make the clothes of the 22 nd century popular in our 2 1 century. ...

Friends, come with me!