Explanatory article 300 words

In life, work and study, we often see the figure of composition. The composition needs a complete text structure, so it is necessary to avoid an endless composition. What is the composition you have seen? The following are six 300-word expository compositions I collected for you. Welcome to learn from them, I hope it will help you.

Explanatory composition 300 words 1 "I" is an ordinary tree, so ordinary that it has no characteristics. "I" have been in school for more than 30 years, sending off a group of lively and lovely students! "I" release and purify the air for everyone every day, keep the soil and water, and give the world shade and fruit. For more than 30 years, "I" has grown up and seen a lot of things. Everyone likes "I" very much. However, a few days ago, when the school was being repaired and a fence was to be built, the worker's uncle felt that "my" hair was a little in the way. At night, it was getting dark, the school was quiet, and the bright moonlight fell on the quiet lawn. "alas!" ! I sighed deeply, and then a childish voice came from the lawn. "What's the matter, Grandpa Tree?" Grass asked. "Son, you don't know today to build by laying bricks or stones wall workers shovel grandpa's hair. Look! " The grass also said sadly, "I am a little stronger than you." Yesterday morning, a little boy hurried to school and walked past us. We just drank dew and were trampled all over. " "I" said, "We are all experts in releasing and purifying air. I really don't know what the world would be like without us? " "alas!" "I" and the grass on the lawn sighed!

Recently, the weather in Beijing is getting worse and worse, even causing smog. Get up in the morning and open the curtains. It's gray outside, which makes people think it's cloudy. In fact, what covers the whole sky is smog. After breakfast, I go to school with my bag on my back. Just out of the building, a choking smell came to my face, which made me have to wear a mask. People on the road also put on masks and complained, "What a terrible weather! The blue sky is shrouded in smog and everywhere is gray. Really dirty! "

Hey, do you think this smoke is harmful to your health? I checked the information-smog is very harmful to the body.

Why is smog harmful to the body? This is because when the weather is foggy, there are often bacteria and viruses in the air, which can easily lead to the spread of infectious diseases and aggravate the toxicity of substances such as sulfur dioxide, carbon monoxide and nitrogen oxides. Inhaling too much air that is harmful to the human body is even more harmful to the body.

After reading the last paragraph, do you think smog is harmful to your health? If so, how to prevent it?

We should stop some outdoor activities, especially morning exercises and some strenuous exercise, and wear masks when going out. In addition to these, I suggest that you travel green, don't litter, don't spit, and protect the environment. For a better world, everyone should contribute their own strength!

Wan Li clear sky, my sister and I went to Shi's former residence to play.

As soon as you enter the gate of the former residence of history, you can see the green and pink lotus pond at a glance. Looking from a distance, the lotus leaf is even more graceful. It's got Bai Lianhua on it. When the wind blows, charming microwaves appear on the lake. The scenery in the water gathers, expands and contracts with the microwave, and the lotus leaves in the water sway with the wind. Dewdrops gather in the center of the lotus leaf, crystal clear as pearls. When you gently shake the lotus leaf with your hand, the dew rolls around. Inadvertently, the pearl dropped many drops of water, dived into the water and disappeared. It is said that I used to comb my hair in front of the powder pool.

My sister and I bypassed the pink pool and walked up the stone steps. After passing through murals and corridors, we came to a magnificent tower. Entering the tower, I walked up the winding stairs to the top. Suddenly, a cool breeze blew into my face. There are four windows on the roof, and each window has a different view. The scenery of Shi's former residence is panoramic: the lush trees below are shining with green light, like singing a beautiful tune, and all kinds of Gu Lou are displayed in turn. The scenery is beautiful. After getting off the ancient pagoda, my sister and I went to see the Xi Shidian and the century-old tree, and then reluctantly left.

I have visited Shi's former residence many times. It is full of charm and has always attracted me deeply.

Explanatory article 300-word composition 4 suddenly turned to several second-grade composition books, and the large and square words were densely covered on every page, just like the population of China. Every time I think of the glorious image of "bending my head to chew the tip of a pencil", it takes me a day to chew out a few words, but now I think it's funny.

Look at the content carefully. What was written at that time was: "I was very moved to see the children helping grandma cross the road." "I was very touched when I fell down after running and was lifted up by Xiaohong." "I don't know if I am looking for something less, but I am very moved by the seller's pursuit." ... one thing, one person, one place, one small detail, playing tricks and writing things over and over again. A notebook is touched almost every day. If I can really cry every day, then the Great Wall should be built again.

These articles are really childish and old-fashioned, but strangely, I don't feel artificial when I read them now, but I think they are cute. Perhaps that era should have been carefree and didn't even think hard, but the "cunning" I racked my brains to come up with turned into true innocence and immaturity.

Old things always give people a heavy feeling of deposition, but the feeling after reading these articles is fresh and simple. If you add a long feeling, it will only tarnish the innocence of the child. Perhaps the content itself does not have such power, but a sentence suddenly touched the weakest corner of my heart and suddenly missed that silly and dull era.

Whenever I look back on my childhood, it's like looking up at the blue sky. It's flawless, pure and flawless. Bring people endless yearning. But it will never get old. It will always make you smile.

Explanatory text 300 words 5 red hydrangea, yellow hydrangea, filled with red jiaozi, ate red jiaozi and spit out white beads! "Guess what this is-this is an orange.

Oranges are round. Every autumn, they are like little lanterns, vying for people to pick them! Oranges are treasures, orange meat can quench thirst, and orange peel can be used to make tea after drying, which can prevent and treat colds and can also be used as seasoning for our cooking! It has a great effect!

Oranges are 3 cm high and 3 cm wide, and the biggest one is as big as a fist. Although it is not as delicious as pearl raisins or as beautiful and sweet as strawberries, it is high in vitamins, calcium and nutrition. Peel off the thin orange peel to reveal orange, like a wrapped jiaozi. Put it in your mouth, it is sour and sweet, and it tastes great. If you take a bite, it will give you a feeling of endless aftertaste. When the weather is hot in summer, we can squeeze oranges into juice, sit on the sofa, watch cartoons and taste the taste slowly.

This is orange, my favorite fruit!

My hometown is in Yongchun, and I love oranges in my hometown.

It takes about three to five years for citrus seedlings to grow up after planting. The flowering period is April and May, and the flowers are white. Against the green leaves, white flowers are as small and exquisite as little angels. They are not only loved by people, but also fragrant and very cute.

After the National Day, the citrus finally matured.

Citrus is oval and orange. At first, citrus was dark green, but when it matured, it turned orange. Oranges in Huang Chengcheng hung on the treetops one after another. I thought it was a small lantern if I didn't look carefully!

Yongchun citrus is better and sweeter than other citrus. Peel off the skin to reveal the petals of yellow flesh, which makes people want to drool. As soon as they bite, the juice gushes out, making your face full of juice, but people still can't help but want to taste its delicious food.

Yongchun citrus is cheap and of good quality. Now it has become a specialty of Yongchun and also sells well at home and abroad.

I love oranges in my hometown, and I also love oranges in my hometown.