说明文的作文300字

【精华】说明文的作文300字合集五篇

[Essence] Explanation of the composition of the text 300 words of five articles

在日常学习、工作和生活中，大家都经常看到作文的身影吧，根据写作命题的特点，作文可以分为命题作文和非命题作文。一篇什么样的作文才能称之为优秀作文呢？下面是小编精心整理的说明文的作文300字5篇，欢迎阅读与收藏。

In daily study, work and life, everyone often sees the composition figure. According to the characteristics of writing propositions, composition can be divided into proposition composition and non -proposition composition.What kind of composition can be called an excellent composition?Below is 300 words of composition carefully compiled by Xiaobian. Welcome to read and collect.

说明文的作文300字 篇1

我最喜欢银杏树，因为在我心目中它是我最喜欢的树。

I like Ginkgo trees the most, because in my mind, it is my favorite tree.

我记得有一次秋季，我看着满树金黄的叶子在阳光的照耀下闪着金色的光，我忍不住感叹：“哇，这树真漂亮!”

I remember once in the autumn, I watched the golden leaves full of golden leaves flashing golden light under the sun, and I couldn't help but sigh: "Wow, this tree is really beautiful!"

在我上学的路上，有一行银杏树。这一行行银杏树非常高，粗壮的树干直直地挺立着，别以为它是光秃秃的树，它的树干上可是布满着很多树干，密密麻麻的枝丫被金黄的叶子层层包围着，像一根根鸡毛掸子。远远望去，像一个巨人一样摆在那里。地面的一截树干刷上了石灰，就像穿上了白色的袜子，既美观，又可以防蛀呢!

On the way to school, there is a row of ginkgo trees.This line of ginkgo trees is very high, and the thick trunk stands straight. Don't think it is a bare tree. Its trunk is covered with many trunks.Root roots chicken feathers.Looking from a distance, placed there like a giant.The trunk on the ground brushed the lime, just like wearing white socks, which is both beautiful and can prevent votinity!

深秋时节，是它最美的时候。这时，满树的叶子变成了金黄色的，数不胜数，它们组成了一个巨大的金色树冠。秋风吹过，叶子飘飘摇摇地从枝头落了下来，活像一个个小伞兵从季而降，又像一只只金色的蝴蝶在舞蹈。汽车开过，落叶跟着车轮翻滚，像是在赛跑。

In late autumn, it is the most beautiful time.At this time, the leaves of the trees became golden yellow, countless, and they formed a huge golden crown.The autumn wind blew, and the leaves fell off the branches, living like a small paratrooper dropped from the season, and like a golden butterfly dancing.The car has drove, and the fallen leaves are rolling with the wheels, as if they are racing.

我捡了一片叶子仔细观察，叶面十分光滑，一丝丝的叶脉清晰可见，像节日时燃放的烟花。叶柄朝上，还像一条小帆船呢!闻一闻，还夹杂着淡淡的清香。

I picked up a piece of leaves and observed it carefully. The leaves were very smooth, and a trace of leaf veins were clearly visible, like fireworks in the festival.The petiole facing up like a small sailing boat! When it smelled, it was mixed with a faint fragrance.

银杏树无论何时都是一道美丽的风景。我爱银杏树!

Whenever ginkgo trees are a beautiful scenery.I love ginkgo tree!

说明文的作文300字 篇2

有一句话说：“家是温暖的避风港”我觉得这句话说的真对，每当我心情很不好，或很疲倦时就会想起家中那最温暖的角落，那是我最喜欢的角落。

There is a saying: "Home is a warm shelter." I think this sentence is really right. Whenever I feel bad, or tired, I think of the warmest corner in my family. That is my favorite corner.

这个地方很特别，也许每个人家都会有，那是我的卧室，它并不大，里面有一张桌子和椅子，还有一张床铺和书架，书架里有我喜欢的故事书，床铺上有一套温暖的被褥和我的娃娃，在我的心目中，这是天地间最温柔的角落，当我生气不想说话时我会躲进这里哭泣，豆大的泪水滑落脸颊时，我彷佛听见非常温柔的声音轻轻问我：“你为什么哭泣?”我自言自语说：“跟同学吵架了…。”“那你为什么要这么伤心呢?”我不知道怎么回话，我仔细的想，我为什么要为了别人的看法而伤心?难道我真的做错了什么吗?…。在卧室里，我慢慢的不再这么难过了，耳中传来妈妈大叫：“妹妹出来吃饭了!”我的心情也变好了。

This place is very special. Maybe everyone will have it. It is my bedroom. It is not large. There is a table and chair in it, as well as a bed and bookshelf. There is a story book I like in the bookshelf.The warm bedding and my doll, in my mind, this is the gentlest corner of the world. When I am angry and don't want to speak, I will hide here and cry. When the tears of the beans slipped down the cheek, I seemed to hear very gentle gentleness.The voice asked me gently: "Why are you crying?" I said to myself, "I quarreled with my classmates ..." "Then why are you so sad?"Sorrow for others' opinions? Did I really do something wrong? ....In the bedroom, I slowly stopped so sad. My mother shouted in my ears, "My sister came out to eat!" My mood became better.

这个地方是属于我一个人的，我喜欢在卧室静静的看书，我喜欢在卧室小声的自言自语，我喜欢在卧室悄悄的望着窗外，我喜欢向我的娃娃吐苦水，如果我碰到难解的`问题，我也可以在这小小的被窝里得到一个新的答案。

This place belongs to me alone. I like to read a book quietly in the bedroom. I like to whisper in the bedroom. I like to quietly look out the window in the bedroom. I like to vomit bitter water to my baby.When I encountered a difficult problem, I can also get a new answer in this small quilt.

说明文的作文300字 篇3

本周末数学课开始进入圆的课程，老师规定同学们上课必需携带圆规。

Mathematics lessons have begun to enter the circular course this weekend. Teachers stipulate that students must carry circular rules in class.

一开始老师来一个考试，确认同学们前次课程的学习成果。接着老师请大家拿出圆规，亲自试範如何使用圆规。圆规的构造很特别，有一个顶端接着两支手臂，手臂底部一端是针、另一端是铅笔。圆规的用法很简单，首先把圆规的针插在纸上，手捏着圆规最顶端，把圆规的双臂拉开至一定宽度，再以笔端向外画一圈。举例而言，如果想画一个半径五公分的圆，就把园规双臂调到五公分的长度，接着就可以画圆。但是，如果题目为直径八公分，就要把长度分为一半，变成半径四公分。

At first, the teacher came to a exam to confirm the learning results of the students' previous courses.Then the teacher asked everyone to take out the rules and trial how to use the round rules in person.The structure of the round rules is very special. One top is followed by two arms, and one end at the bottom of the arm is needle and the other end is a pencil.The usage of the round rules is very simple. First, insert the needle of the round regulations on the paper, pinch the top of the round rules, pull the round arms to a certain width, and then draw a circle with the pen end.For example, if you want to draw a circle with a radius of five centimeters, you can adjust the garden rules to the length of five cm, and then you can draw the circle.However, if the topic is eight cm in diameter, the length should be divided into half and turned into four cm radius.

老师虽然很仔细地解说圆规的使用方法，但同学们实际操作时，仍然碰到各式各样的问题，状况百出，有人抱怨对圆规不熟悉，更有人嫌弃自己的圆规不好用，一整个单元的习作只写完两页。奇怪的是到了课程结束，满口牢骚的同学竟然说：「我爱上圆规了。」我忍不住回了一句：「可是，圆规不是很难用吗？」那位同学很肯定地说：「没办法，我还是很喜欢呀！」

Although the teacher carefully explained the use of round rules, the students still encountered all kinds of problems when they actually operated. The situation was full of situations. Some people complained that they were not familiar with the round rules.The units only finish two pages.The strange thing is that at the end of the course, the complaint classmates even said, "I am in love with the rules." I couldn't help but reply: "But, isn't it difficult to use the rules?" The classmate said with certainty: "No way, I still like it! "

我觉得圆规是一种好用又有趣的工具，希望透过不段地练习，可以更加熟悉它。

I think the round rules are a good and interesting tool. I hope that through the practice, I can be more familiar with it.

说明文的作文300字 篇4

大西瓜说到了水果，有黄色的香蕉、红色的苹果、紫色的葡萄、桔黄色的橙子、淡黄色的香瓜……在所有水果中，我最爱吃西瓜了。西瓜，又名夏瓜。夏天吃西瓜，对人体甚有补益。小儿吃西瓜，不仅可得到丰富的营养，而且有利于开胃口，助消化，利泌尿，促代谢，去暑疾，滋身体。西瓜汁多味甜，能解热消暑，除烦止渴，是人们喜爱的消暑佳品。

At the Atlantic watermelon, the fruit, yellow bananas, red apples, purple grapes, orange orange, pale yellow melon ... Among all fruits, I love watermelon the most.Watermelon, also known as Xia Gua.Eating watermelon in summer is very good for the human body.Eating watermelon in children can not only get rich nutrition, but also help appetite, help digestion, benefit urology, promote metabolism, go to summer diseases, and nourish the body.Watermelon juice is sweet and sweet, can relieve heat and heat, eliminate thirst, which is a favorite of people's favorite heat.

由于西瓜含有多种营养成份和化学物质，随着人们生活水平的不断提高，西瓜已不再是季节性消费品，而逐渐成为营养食品。据分析500克西瓜果肉所含的蛋白质和糖，相当于56克小麦产生的热量（约83。7千焦），能够为人体正常的生理活动提供能量。

Because watermelon contains a variety of nutrients and chemicals, with the continuous improvement of people's living standards, watermelon is no longer a seasonal consumer product, and gradually becomes nutritious food.According to analysis of the protein and sugar contained in 500 grams of watermelon, it is equivalent to the heat generated by 56 grams of wheat (about 83.7 thousand cokes), which can provide energy for the normal physiological activity of the human body.

研究表明，西瓜还具有调整体力，提高耐力的作用。西瓜果肉中所含的维生素、各种糖，矿物质和有机酸，是人体构成骨骼、血液不可缺少的成分一般人认为，听声音，就可以挑出好西瓜。各种类型地西瓜都可以通过听来选择。其实，不同的西瓜因为皮地厚薄，韧脆而会有不同地声音。也有人认为，瓜底黄了，就一定是熟瓜。其实有时种地时候因为瓜底不见光，所以，可能在三、四分熟地时候，已经黄了 。西瓜清凉可口，怎么样，你是不是也想尝尝？

Studies have shown that watermelon also has the effect of adjusting physical strength and improving endurance.The vitamins, various sugar, minerals and organic acids contained in watermelon flesh are the ingredients that constitute bones and blood for the human body. Most people think that when listening to sounds, they can pick out good watermelons.Various types of watermelon can be selected by hearing.In fact, different watermelons will have different sounds due to thick skin and crispness.Some people think that when the bottom of the melon is yellow, it must be cooked melon.In fact, sometimes because the bottom of the land does not see light, it may be yellow when it is cooked in three or four.Watermelon is cool and delicious, how about, do you want to try it too?

说明文的作文300字 篇5

我的家乡在湖南，一个山清水秀、鸟语花香的地方，家乡的四季都很美，但我最喜爱家乡的春天。

My hometown is in Hunan, a place where mountains and rivers are beautiful, birds and flowers. The four seasons of my hometown are beautiful, but I love the spring of my hometown.

当时小燕子飞回来，带来了春的消息，春风姑娘她悄的来到了我们身边，给大地换上了一身绿色的礼服。树儿绽出新芽，嫩黄嫩黄的，像一只只小蝴蝶，野花遍地开放，五彩缤纷，别提有多漂亮了！小草从地下探出小脑袋，点点绿色，像一颗颗小星星。

At that time, Xiao Yanzi flew back and brought the news of spring. The girl in Chunfeng came to us quietly and replaced the earth with a green dress.The trees are blooming, tender yellow and yellow, like a small butterfly, wild flowers are open everywhere, colorful, not to mention how beautiful it is!Xiao Cao revealed the small head from the ground, a little green, like a little stars.

春雨淅淅沥沥地下着，落在池塘里，泛起丝丝涟漪。雨水的降临，洗刷着灰蒙蒙的天空，带走了世间的污浊，偶尔还能看到雨过天晴后，天空的那一抹绚丽的彩虹。

Spring rain was underground, falling in the pond, ripples.The coming of rainwater, washing the gray sky, took away the dirt of the world, and occasionally saw the gorgeous rainbow of the sky after the rain was clear.

微风轻拂，柳树也随风摆动，舞动着它那婀娜多姿的身段，春风姑娘像抚摸着襁褓中的婴儿，哼着歌儿，再给小柳树伴舞呢！

The breeze brushed, the willow trees also swayed with the wind, dancing its graceful figure. The girl in the spring breeze like stroking the baby in the puppet, humming the song, and dancing to the small willow tree!

春天是忙碌的季节，农民伯伯都忙着不亦乐乎，所谓“一份耕耘，一份收获”，即使是累弯了腰，他们也乐呵呵的笑着。田里的大片大片的油菜花开了，金黄金黄，散发着沁人心脾的香。绿油油的稻田在风吹过后，掀起层层麦浪。

Spring is a busy season, and the peasant uncle is busy. The so -called "a cultivation, a harvest", even if they are exhausted, they laugh happily.The large area of rapeseed flowers in the field bloomed, golden golden, exuding refreshing fragrance.After the wind blows, the green rice fields set off layers of wheat waves.

春天，虽没有夏天的活力四射、繁茂热情，没有秋天的硕果累累、瓜果飘香，也没有冬天的粉妆玉砌、银装素裹，但它也有着自己独特的美。你喜不喜欢我家乡的春天呢，喜欢的话让我来做你的小导游吧！

In spring, although there is no vitality, lush enthusiasm in summer, there is no fruitful fruit in autumn, the fruits are fragrant, and there is no pink makeup, makeup, and silver -wrapped in winter, but it also has its own unique beauty.Do you like the spring of my hometown? Let me be your little guide if you like it!

【【精华】说明文的作文300字合集五篇

[Essence] Explanation of the composition of the text 300 words of five articles】相关文章：