1. Write a 400-word essay using the explanatory method with a self-prepared title

I have an inseparable friend who always serves me silently; My partner, it always pays for me without complaint

It is my close partner - the mechanical pencil. It was given to me by my mother on my ninth birthday

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My pencil is light blue, thin and long. There is a beautiful girl on it: she has light brown hair, blowing in the wind

Yang, very beautiful; her little mouth is very red, like a cute little cherry; she is wearing white and light blue silk clothes, beautiful

Appearance One glance at it will make you unforgettable for a long time.

The rear of this mechanical pencil is not an eraser like other automatic pens, but an iron cover with a thin iron hanging on the cover

Chain, when you write, listen carefully and there is a small, thin sound that sounds nice. The sound is like the sound of wind chimes colliding.

Mechanical pencil, I don’t know how many minutes you have spent with me. During the Chinese and math exams, in every homework book, and in my favorite art class, you have left a lasting impression. With your busy figure and beautiful footprints, my feelings for you are increasing day by day.

This is an item I like - an ordinary but A mechanical pencil full of love. 2. Instructions for using a 400-word spring composition

Spring is coming! All things are recovering, the winter jasmine is smiling at us, the peach blossoms are blooming with smiles, azaleas, peonies, roses... are also blooming invariably.

The fragrance of the flowers ushered in a few lively and cute little bees. They sucked the nectar from this flower for a while, and then sucked the nectar from that flower. They were very busy. Suddenly a few more little butterflies flew over. They smelled the fragrance of this flower and then that flower, as if to say: "Little flower, you smell so good and beautiful?" Then they came again. It flew in front of the little bee, as if to say to the little bee: "Little bee, you go out early and come back late every day, aren't you tired?" The grass jumped out of the grass and grew green buds.

There are also many small wildflowers growing on the grass, including red, golden, lavender, dark blue... Colorful small wildflowers, paired with green grass, look great. More beautiful, more lovely. A breeze blew by, and the grass and wild flowers danced a cheerful waltz.

The willow tree stretched and woke up from its sleep. It immediately cast magic to make itself grow green buds. It became very beautiful. The wind god blew a breath, and the willow tree's " The hair "fluttered" along the hill, looking very beautiful. Spring, you are such a colorful season. 3. How to use the instructions for a 400-word spring composition

Spring

Spring is here! All things are recovering, the winter jasmine is smiling at us, the peach blossoms are blooming with smiles, azaleas, peonies, roses... are also blooming invariably.

The fragrance of the flowers ushered in a few lively and cute little bees. They sucked the nectar from this flower for a while, and then sucked the nectar from that flower. They were very busy. Suddenly a few more little butterflies flew over. They smelled the fragrance of this flower and then that flower, as if to say: "Little flower, you smell so good and beautiful?" Then they came again. It flew in front of the little bee, as if to say to the little bee: "Little bee, you go out early and come back late every day, aren't you tired?"

The grass jumped out from the grass and grew green. ’s bud. There are also many small wild flowers growing on the grass, including red, golden, lavender, dark blue... Colorful small wild flowers, paired with green grass, look even more beautiful and lovely. A breeze blew by, and the grass and wild flowers danced a cheerful waltz.

The willow tree stretched and woke up from its sleep. It immediately cast magic to make itself grow green buds. It became very beautiful. The wind god blew a breath, and the willow tree's " The hair "fluttered" along the hill, looking very beautiful.

Spring, you are such a colorful season! 4. Write a description of a plant (400 words)

There are many kinds of flowers in the sun flower world, such as magnolia, rose, rose, plum, chrysanthemum, clivia, camellia, etc. .

However, the flower with the most blooms and the richest colors is the sunflower. As the saying goes: "Good flowers don't bloom often."

Sunflowers are also good flowers, including red, yellow, white, purple, crimson, orange... The petals of sunflowers are single-layered and shaped like plum blossoms. There are red and black filaments with yellow spots. The stems of sunflowers are long, thin, soft, and curved.

Its branches are very thin, the leaves are dense, and there are many flowers. Sunflowers bloom only when they see the sun. Every day when the sun rises slowly from the east, sunflowers rush to open their smiling faces.

When the breeze blows away, the sunflowers "shake their heads and shake their heads" as if they are reciting poetry, and they seem to nod to pedestrians. The flower buds of sunflowers are red and about the size of a soybean.

Different from other flower buds, they are short and round. The flower seeds of sunflowers are surrounded by several small leaves.

The flower seeds are as big as sesame seeds. When the small flower seeds are ripe, they are scattered in the arms of Grandpa Earth. After being moistened by the sun and rain, they will grow and bloom into more beautiful sunflowers in the second year. . The vitality of the sunflower is very strong. She sucks the nectar given to her by Grandma Lantian to her heart's content. She greedily absorbs the nutrients from Grandpa Earth.

Sunflowers thrive under the care of Grandpa Earth and Grandma Blue Sky, making the motherland more beautiful and adding to the beauty of nature. At night, the sunflowers are like children who have been playing all day, falling into a sweet dreamland tired but relieved.

Although sunflowers do not have the nobility of roses, the fragrance of chrysanthemums, the purity and elegance of magnolias, or the fragrance of plum blossoms, sunflowers have the spirit of selfless dedication. I love sunflowers.

5. Use 5 explanatory methods to write a 400-word composition about whales

I am a whale, and I am the largest and largest whale in the ocean - the blue whale, also known as the razorback.

My life In the vast ocean, I have many brothers and sisters, and many friends, swimming in the deep ocean.

When I am happy, I will float to the surface and say hello to the blue sky and white clouds; When I was upset, I would dive into the bottom of the sea and ignore anyone who came to me. When the wind was nice and sunny, I would swim to the beach, come out of the sea, and look at the land and mountains from a distance, thinking: Where did our ancestors come from? Are you here?

To talk about my ancestors, we have to start 450 million years ago.

At that time, the ancient lobe-finned fish evolved into amphibians, reptiles, birds and Preserved milk, it was not until 70 million years ago that our ancestors differentiated from preserved milk.

At that time, our ancestors were still on land, and later occupied the ocean, lived in shallow seas, and finally adapted We have lived in the ocean and evolved into the whales we are today.

We are so big, so our belly must be big. What should we eat with such a big belly? When I eat small fish and shrimps, I first expand my belly and swallow all the sea water into my mouth, then close my mouth, press the water out, and only swallow the food. Why do we eat small fish and shrimps? Because we have no teeth and cannot chew food, we can only eat small fish and shrimps. Although they are small, there are many of them, so we don’t worry about being hungry.

Did you know? My lungs weigh about 1,500 kilograms and can suck 15,000 liters of air. I can stay underwater for 18 minutes. When I am breathing, due to excessive pressure, not only the sound is loud, but also "fountains" will appear on the sea. How beautiful! It sprays out more than ten meters high, then spreads out and falls on the sea, creating splashes. From a distance, it looks like fireworks at a festival, so beautiful!

This is me, a whale, a mammal living in the deep sea, and a good friend of you humans. 6. A 410-word essay using explanatory methods

My pen Today, I want to introduce a stationery - pen.

On Children’s Day, my mother bought me a pen. It was slender and long, like a beautiful little girl. It is wearing a pink dress. The skirt is made of iron. It is very beautiful. There are little rabbits on it, as if asking us if we are beautiful? When I took off her hat, I saw its thin and pointed little head. When I took off her beautiful dress, I saw its snow-white belly. Then, I moved its head vertically downwards and squeezed her belly. , its belly suddenly changed into a dark blue belly. After writing for several days, my homework was all full of stars. This time it made great contributions! My pen is not only functional, it’s also naughty! Once again, I forgot to put a hat on it, and it just wanted to take a look outside, so it jumped off the table.

Its head was covered in blood, and its mouth was split in half. Another time, I forgot to give him food, and he always shouted: "I'm hungry, I'm hungry!" But I was eating, so how could I hear him? After eating, I went to do my homework and he went to sleep. He wouldn't eat even if I gave him something to eat. I really couldn't do anything about him.

I like this pen because it gives me good results. 7. Is there a 400-word essay on explaining the method?

Xiao Ming, go for a walk." Mom urged Xiao Ming again, "Yes, go right away." Xiao Ming walked on his house. While walking, I suddenly saw a little bird on the pine tree behind the door! Xiao Ming immediately took out a chair from home and climbed up to catch the bird. The chirping bird was locked in a cage! After being put in the cage, he didn't eat or drink all day long, he couldn't sing any more, and he fell asleep every day.

His head was flying around in the cage, and sometimes he was banging his head against the cage like a crazy bison. However, one day, he suddenly heard the cry of a bird and ran out. Look, it turned out to be an old bird talking to the little bird! They would also hold the iron cage with their mouths from time to time... When Xiao Ming saw this, he immediately understood what the old bird meant. It turned out that the reason why the little bird stopped singing every day was because it was homesick, and no matter how delicious food was given to it, it would not work. , no matter how nice a house you give it. Xiao Ming made a decision: "Release the bird! Xiao Ming released the bird, and the bird and the old bird flew together. Xiao Ming probably saw the little bird and the old bird, and laughed happily."

There are 365 days in a year, you want to ask me which day is my favorite? I will tell you right away that I love Juneteenth the most. The annual Children’s Day is here again, and we are very happy. Look, the school held various activities, including riddles, balls between feet, and pitching... First of all, I I played pitching, and my team was Guilian. We tried our best to have a tacit understanding, but I went to the right, he went to the left, I went to the left, and he went to the right. It took a long time to throw, but we only scored 3 goals. We were all disappointed. .

Happy Children's Day Then I came to the riddle guessing area. There were many cards hanging on a line, and the cards were filled with riddles. I picked one at random, and it read: "One point is long, one is long, and one is floating in the South Sea.

There is a man in Nanyang, only one inch long." I immediately guessed that this character was the character "福".

I walked to the prize area and said to my aunt: "Auntie, this character is the character "fu". The aunt said: "You are awesome" and your guess was correct.

My aunt gave me two candies, and she said to me: "This is your prize." I remember that on my 4th birthday, my grandfather gave me a small cloth umbrella.

The umbrella surface is made of floral cloth, with kittens, puppies, and many cute cartoon characters on it; the umbrella handle and eight crutches are all made of wood. The small umbrella looks like a small mushroom when opened, and looks like a gentleman's walking stick when closed from a distance. It is very delicate and beautiful.

When I opened my little umbrella and followed my grandma to the work unit, Grandma Wang praised my little umbrella for being beautiful; when I followed my grandpa to the work unit, Grandpa Liu and Grandpa Zhao said, "Your little umbrella is so beautiful!" Spring, Part 2 It's raining lightly. The small cloth umbrella can temporarily cover me from the rain. This way, if I go out for a while on a rainy day, I won't get wet.

In summer, the sun is scorching, and it’s really hot outside. When a small cloth umbrella protects me from the sun, I feel extra cool. In autumn, although few people hold umbrellas, I still hold my small cloth umbrella because there is a cool breeze from time to time.

Once, the weather was very cold and the wind had been blowing all day. It was easy to squint my eyes. I only had to move the small cloth umbrella forward, and the wind blew past me, and I could look like Walking as usual, there is no big difficulty. As a 4-year-old, maybe I was still too young to notice the "spirit" of the little cloth umbrella.

Now I have discovered: it once soaked by itself and protected me from the rain; it once basked in the sun by itself and protected me from the scorching sun; this spirit of selfless dedication that cannot be bought with money always spurs me on. Keep moving forward. Mom, you are laid off. I know you feel very sad. Facing your haggard face, I really want to say to you: "Mom, don't feel inferior, don't be sad, stand up straight, don't lie down.

Mom, since you were laid off, you have always been in a daze, always saying that you are useless if you cannot make money for the family: last night, when I put a piece of delicious fish in your bowl. , but you put it into my bowl again.

It’s not your fault that you’re laid off. Don’t treat life like this.

Mom, show your self-esteem and face life. Mom, you said that after you were laid off, your family's income has decreased a lot. You often lament that you no longer have a status in this family and you are an insignificant person.

Mom, don’t say that. Dad and I will always love you deeply and have no intention of despising you. Haven’t you seen that Dad is no longer as procrastinating and lazy as before? Every time he came back from the countryside, he would rush to do the work at home, take the initiative to repair here and patch up there. Every time he went to the countryside, he would arrange everything at home. He also asked me to accompany you more and enlighten you more. You, say you feel lonely and sad when you are alone at home. Mom, show your confidence, our family is your favorite sailboat, and you are still our good captain.

Mom, looking at the more and more wrinkles on your face and listening to your fewer and fewer words, I can see that you are bowing to your fate step by step. Mom, don’t think like this. You used to be my role model for self-improvement; now, you are still a strong mother in my heart.

Mom, don’t you always encourage your daughter to cheer up and fight in the face of setbacks? Mom, aren’t there so many laid-off workers on TV who have found their place again? I believe you will be able to find it too, and you will definitely do better than them. Don't worry, my dad and I will always support you, just like you support our warm home! I was eating an apple while watching "Three Magic Crystals".

Suddenly, I felt light all over, and my brain was working as fast as lightning. Suddenly, I remembered the elastic rubber, so I immediately took out two pieces of rubber from my pocket and started making them in a hurry.

After about ten minutes, the elastic rubber was ready. I used glue to stick it to the sole of my foot, and then kicked it hard. I flew out of the atmosphere like a rocket, and headed straight for a dark green planet at the speed of "one hundred million miles per step".

A few hours later, I came to the planet "Dark Green". But this place is different from what is said in the book. Although everyone here uses "elastic rubber", the land here is vast and not as narrow as the book says.

"Huh?" Why are there no houses here, only a few small shops? Why can people still live without oceans and lakes here? Why... When I was confused and mumbling to myself, a tall man seemed to see through my mind. He pulled up a grass in front of me, and a spring of clear water suddenly came from the ground. come out. He took me to a small shop and got one to play with. 8. Use the explanatory method to describe the 400 composition of the classroom

The school is my family, and the second grade class <1> is my little home. I happily studied and played in my small home, and made many good friends.

As soon as you walk into the classroom, you can feel that this is a warm and quiet little home. In front of the classroom is a large rectangular blackboard, where the teacher usually teaches us various knowledge. There is a book corner in the left corner of the blackboard where we share knowledge. There is a blackboard newspaper, learning garden and honor list at the back of the classroom. The blackboard displays a wealth of knowledge, including jokes, famous quotes and proverbs. The learning garden displays various excellent assignments. The honor list contains the results of the students’ hard work.

There are four blue transparent glass windows on the left and right sides of the classroom. Usually, it protects us from wind and rain. During the Chinese New Year and holidays, we cut all kinds of beautiful window decorations to make them more beautiful. There is a snow-white ceiling above the classroom. Four electric fans and six electric lights are installed on the ceiling. Electric lights bring us light when it's dark, and fans bring us coolness when it's hot. So we are all very grateful to them

There is a cement floor underneath the classroom. We usually clean it so that we can study and play in a clean classroom.

After listening to my introduction, do you also want to play in my little home? 9. For a familiar item, you need to use an explanation method, a 400-word composition

In the big family of my schoolbag, there is one item that I am particularly familiar with, and it is my stationery bag.

This stationery bag was given to us as a prize after the English competition last year. It is very beautiful.

Its belly is very big, and there are rulers, erasers, erasers in it... I took out the ruler and pencil from the stationery bag, and they helped me draw beautiful patterns on the paper.

Next comes the tire rubber brother, it can correct all the wrong words, just like a dedicated police car uncle, arresting all the bad guys. It can be said to be the smallest member in the stationery industry.

My stationery bag has three layers. The first layer contains pens and water-based pens, the second layer contains correction fluid and eraser, and the third layer contains pencils and rulers, with a little mouse printed on the outside. , the little mouse has two big ears, a pair of bright big eyes, and a small and exquisite mouth. It looks very well-behaved.

This is my stationery bag, this is the stationery bag that I am particularly familiar with! 10. An introduction composition of 400 words with explanation method

1. Cat is a beautiful little animal. It is well-behaved, docile and very lovable.

It has a small and exquisite face, a pair of big sapphire-like eyes, and a red little nose. Although it is a carnivore, it does not look like a ferocious carnivore at all. . Cats are also mammals. They are viviparous, and kittens grow up on their mother's milk.

Domestic cats can live in human resting places. What about feral cats? Wild cats generally live on the grassland, relying on the grass on the grassland to shade themselves. Cats are agile. In the wild, cats rely on their agility to catch birds flying in the grass. In fact, domestic cats are also trained by wild cats.

Many people say that cats are afraid of water and dare not go into the water. In fact, cats dare to go into the water and swim.

But that’s just a cat living in the wild. Cats are very clean little animals. No matter where they go, their bodies are always clean and slippery.

The smallest cat in the world is only as big as a piano key, only two centimeters. The fattest cat in the world weighs fifteen kilograms.

People in ancient Egypt regarded cats as the most sacred things. There are many golden statues of cats, which are the most sacred things.

Cat Ji is alert. When it hears any sound while resting or sleeping, it will immediately get up and look left and right to feel reassured, then rest. Cats usually give birth to one or two cubs and raise them up.

2. Like the owl. Do you know what my favorite animal is? Then I will tell you. My favorite animal is the owl. The most attractive thing about the owl is that it has two eyes like night pearls. , round and bright. The feathers around the eyes are arranged in a round face shape, and with the pointed ears on both sides of the head, it looks very like a cat. Its eyes are like copper bells, its mouth is like a sickle, and its claws are like sharp iron The hook looks very majestic. Since ancient times, the owl has always been regarded as an unlucky animal, and it is even called a "mourning bird". This is a huge injustice. In fact, the owl is an expert mouse catcher, and its food is 95 It's a wild rat. A wild rat wastes one kilogram of grain in one summer, and an owl can catch thousands of wild mice in one summer. In other words, one owl protects 1,000,000 kilograms of grain for humans in one summer, which is worth A year's ration for three people. The owl can accurately catch cunning mice in the dark night. Because its retina is mainly composed of cylindrical cells, the sensitivity at night is a hundred times greater than that of human eyes. The owl can It detects high-frequency sound waves that oscillate more than 8,500 times per second. The sound waves generated when wild mice move happen to be in this high-frequency range, so no mice can escape the hunting of owls. Now, you should know why I like owls, right? I hope you will fall in love with the owl after reading this article, protect it, cherish it, and do not catch or eat it illegally, because it is the pride and resource of our motherland. So we should protect it and list it as a key protection object , you know? Monkeys go to the zoo to play, and the monkeys on Monkey Mountain are the most attractive place. There are 196 species of monkeys found in the world, mostly in tropical countries in South Asia, Southeast Asia, Latin America and Equatorial Africa. There are 17 species in my country. In monkeys In the kingdom of animals, there are many rare, strange and interesting species: golden monkeys with golden hair, surprisingly lazy loris, disco-dancing lemurs, bonobos smaller than squirrels, and tarsiers that look like wearing glasses. , the aye-aye that is not like a monkey, the spider monkey that looks like a spider, the "civilized" woolly monkey, the loudest howler monkey, the beautiful colobus monkey, and the long-tailed monkey with a tail longer than its body, known as the "old man" The bald head, the "horn bird" (it should be combined into one word) monkey with night vision, the funny proboscis monkey, and the extremely smart baboon... The baboon is a large monkey, as smart as a chimpanzee. It After eating wild fruits, his lips will be stained with juice, so he picks up a stone as a "napkin" and wipes his mouth and nose repeatedly. In the Chicago Zoo in the United States, a large baboon tried to eat the juice from the food plate outside the cage. To get food, ask a small baboon to fetch a hook-shaped tool, and then hook the food plate close to eat together. Farmers in southwest Africa use baboons to guard their flocks, with good results. Lions in Africa Although they are the biggest enemy of baboons, groups of baboons often unite, and even unite with zebras and antelopes to fight off ferocious lions together. This is an example of the weak defeating the strong in the animal world. Carrot There are many varieties of radish, with about a hundred varieties. According to the season, it can be divided into spring radish and autumn radish; according to the size of the root, it can be divided into three types: large, medium and small; according to the color of the radish, it can be divided into white radish, green radish and red radish.

Although many households in rural areas grow radish, many people do not fully understand its wide range of uses. Radish contains many nutrients.

It contains large amounts of glucose, fructose, sucrose, various vitamins and minerals. The vitamin C content is eight to nine times more than that of pears and apples.

If radish is used instead of fruit, its vitamin content will only be even worse. The pungent flavor of radish is also a useful substance.

Together with the digestive enzymes in radish, it helps the gastrointestinal tract digest food, especially fat. After people eat greasy food, eating some radish will relieve the greasiness.

If people overeat during meals, they can also eat some radishes. Before liberation, there was a man in our village who liked to bet with others.

Once at a banquet, he made a bet with someone: "I can eat eight large bowls of food in one meal without being stuffed to death, but there must be one condition: I must be allowed to go out for a walk after eating."

"Sure enough, less than an hour after he went out after dinner, he swaggered into the door of the house again. People were vying to ask him what "miracle medicine" he had taken to avoid being strangled to death. Under people's questioning, he had no choice but to Said: "After I went out, I picked two radishes from the field and ate them, so I can stand here well now." ”

Why can radish help digestion? Because radish contains a lot of mustard oil, fiber and a variety of digestive enzymes, these substances can promote intestinal peristalsis and help digestion.