Four students in our group went to Wucun, outside the East Gate, to investigate the air conditions there, and found that the weather there was dark, garbage piled up, stinking, sewage flowing across, and it was difficult to breathe, so people had to cover their noses when walking. Why is this? So we went to ask passers-by.
Passers-by said, "It's all because of the smoke from chimneys, the garbage dumped everywhere, the cut down trees and the exhaust from cars." So, what is the solution? We also interviewed the aunts and grandfathers of relevant units, and came to the conclusion: "Automobile manufacturers should transform their engines and install exhaust gas purification devices.
The boiler needs to be improved so that the coal can be fully burned. In addition, coal should be processed into anthracite for afforestation. "
After listening to this, we are all encouraged and determined to make contributions to environmental protection. Audience friends, after watching today's focus interview, have you learned many good ways to protect the environment? I hope you can care more about the environment, strive to be a guardian of environmental protection, and build our home better with practical actions.
2. Writing coal is a solid combustible mineral gradually formed by ancient plants buried underground through complex biochemical and physical and chemical changes.
A solid combustible organic rock is mainly transformed from plant remains by biochemical, burial and geological processes. Commonly known as coal. China is the first country in the world to use coal. Coal handicrafts were found in Xinle ancient cultural site in Liaoning, and coal cakes were also found in gongyi city, Henan. In Shan Hai Jing, coal was called Shi Nie, while in Wei and Jin Dynasties, coal was called graphite or Carboniferous. The name coal was first used by Li Shizhen in Compendium of Materia Medica in Ming Dynasty. Greece and ancient Rome were also countries that used coal earlier. About 300 BC, the Greek scholar Theophrastos wrote The History of Stones, which recorded the nature and origin of coal. About 2000 years ago, ancient Rome began to use coal for heating.
Coal is a mineral that can be used as fuel or industrial raw material. It is a black solid mineral composed of carbon, hydrogen, oxygen, nitrogen and other elements, which has changed the physical and chemical properties of ancient plants through biochemical and geological processes.
As a fuel, coal began as early as 800 years ago. Coal is widely used as fuel for industrial production, which began with the industrial revolution at the end of 18. With the invention and use of the steam engine, coal has been widely used as fuel for industrial production, which has brought unprecedented great productivity to society and promoted the development of industry, followed by the development of coal, steel, chemical industry, mining, metallurgy and other industries. The calorific value of coal is very high, and the calorific value of standard coal is 7000 kcal/kg. Moreover, coal is rich in reserves, widely distributed and generally easy to mine, so it is widely used as fuel in various industrial production.
In addition to obtaining heat and kinetic energy as fuel, it is more important to make metallurgical coke and artificial oil, namely coal tar, which is the liquid product of low-temperature dry distillation of coal. After chemical processing, coal can be made into thousands of chemical products, so it is also a very important chemical raw material. For example, many small and medium-sized nitrogenous fertilizer plants in China use coal as raw material to produce chemical fertilizers. China's coal is widely used as raw material for many industries. The construction of large coal industrial bases plays a great role in the formation and development of comprehensive industrial bases and economic regions in China.
In addition, coal often contains uranium, germanium, gallium and other radioactive and rare elements, and is an important raw material for semiconductor and atomic energy industries.
Coal is a modern industry, whether heavy or light; It plays an important role in energy industry, metallurgical industry, chemical industry, machinery industry, textile industry, food industry and transportation industry. All kinds of industrial sectors consume a certain amount of coal to a certain extent, so some people call coal the "real grain" of industry.
China is one of the countries with the richest coal resources in the world, which not only has large reserves and wide distribution, but also has a complete range and excellent coal quality, providing extremely favorable conditions for China's industrial modernization.
3. Write the composition of coal 600 words Wujin-coal
Strong and stalwart body, dark complexion, smooth and shiny skin, and its ugly figure. Who is this? Yes, this is you-amiable, respectable, lovely and hateful coal.
Your birth can be traced back to ancient times. For millions of years, the stems and leaves of plants have accumulated on the ground to form dark humus, which has penetrated into the stratum under the movement of the earth's crust and been isolated from the air for a long time, and has been tempered at high temperature and high pressure to make Youmei.
You are called "black gold", which is one of the irreplaceable important energy sources in human production and life.
Your availability is very good, and you are a very reliable energy source. According to the statistics of the World Energy Commission, you occupied 10% of the world's final recoverable reserves of fossil energy in 1998, while the sum of oil and natural gas was less than 1 1%. Judging from the present situation, you must have become a leader among many fossil fuels and a well-deserved "leader". Whether in the world or in China, your development will be vigorous.
You are rich in carbon, which releases high energy when burning, which is the main fuel of industry. Not only that, but your price is also very cheap. According to incomplete statistics, with the same calorific value, the prices of natural gas, diesel oil and heavy oil in Beijing are about 4 times, 6 times and 4 times of yours respectively. This shows that you are still the cheapest industrial fuel in the dark!
It can also be cleaned and used. Human clean coal technology is an efficient and clean technology for coal processing, combustion, transformation and pollution control. After a series of treatments, you can significantly reduce a lot of SO2 and a certain amount of CO2 when burning, so that you can get clean utilization.
You occupy such an important position in the world energy history, then your hometown Shanxi naturally plays a decisive role. My hometown Shanxi's coal output and export volume account for 1/4 and 3/4 of the whole country respectively. Your development directly affects the economic benefits of Shanxi, and your future determines the future of Shanxi. As an authentic Shanxi native, I want to say to you affectionately: "Great!"
However, some of your "indiscretions" also make us very helpless.
When you burn, you release energy. With a large amount of sulfur dioxide, a series of chemical changes occur in the air, which dissolves in rainwater, acidifying the rainwater and forming acid rain, which is extremely harmful to human beings. Acid rain acidifies soil, lakes and rivers and damages the growth of crops and other plants. According to the survey results of the American Center for Atmospheric Protection Research, there are as many as 30 million residents directly affected by acid rain in the United States. Moreover, when you burn, 10% of black carbon particles in your body are emitted into the air with smoke, which directly affects and causes human respiratory diseases. So you are still the source of threat to human health.
Ah! Coal, we love you, because you provide conditions for the prosperity of mankind; We hate you because you have destroyed the environment of the earth. But I believe that the rapid development of human society will definitely make you more profitable and avoid disadvantages, constantly innovate yourself and benefit mankind!
4. The composition of the writer's specialty coal is "sonorous sonorous sonorous". . "The truck bumped on the rugged mountain road.
"Crash crash. . "When crossing a brick, the car body suddenly shook and almost fell apart, just like a seriously ill old man convulsed before he died. But the truck didn't stop, and at the same time, a stone rolled off the roof.
It was a piece of black coal, and every corner of it shone with soft light, with the "earthy smell" representing new life. "ah! Wait! I'm here! Here it is! " As soon as the stone fell, he became anxious. He jumped and shouted, but he could only helplessly watch the truck drift away.
"Why bother?" The brick is turned over. "Why do you want to chase?" The coal said anxiously, "Why? Why bother! That's my destination! " Brick looked contemptuously at the direction in which the car left. "Destination refers to the cemetery, my coal elder brother. I didn't save you. You are already buried in the sea of fire! " After patting the dust on his body, "how nice it is to bask in the sun every day!" "
The coal looked at the dusty, dry and uneven road, and then at the direction where the truck was going. "You will never feel the pleasure of burning with fire. The boiling flame spreads in your body, your body becomes lighter and lighter, and your soul begins to spread. "The coal looked at the brick disappointedly. "I want to burn!"
Soon, a passer-by came here, looking for dead branches to make a fire and cook. He saw the coal, and it trembled with excitement. He jumped into the fire-
"Let me burn! ! ! "
┏ (^ω^)=
5. A complete article about the writer's professional coal "Oh yeah! Summer vacation! " There is also a happy atmosphere on the way after school.
Because it's summer vacation, my mother will let me have a pet! I wondered all the way: is this pet a rabbit, a cat or a dog? As I approached the door, I saw my mother sitting in a chair from a distance, talking and laughing with the people next to her. At her feet, I vaguely saw a mass of black things. I think this must be my mother's pet! As soon as the car stopped, I ran home in ecstasy. "wow! What a lovely puppy! " Almost all of them are black, with small white spots on their bodies, like stars in the night sky, and their delicate little faces are inlaid with two crystal eyes.
Because its hair is as black as briquettes, I gave it a name-"briquettes"! Listening to my mother, this puppy was sent by an acquaintance. She was abandoned by her mother at an early age and lost her maternal love ... After listening to this, I made up my mind: I must take good care of this lovely and poor "little briquette"! I immediately made a bowl of milk powder, put it in a small wooden bowl and put it in front of it. It took the lead in licking it with a pink small tongue, as if afraid that someone would take it away. "Ha ha! It's really sweeping! "A few times is clean, not a drop left! What a greedy cat! It blinked at me as if to say, "Who are you? "Thank you, thank you!" In this way, I came to see it as soon as I finished my task, and we gradually got familiar with it.
Whenever I sit in a chair, "coal ball" will sit next to me, licking my feet gently with my tongue, and panting from time to time … I really like it more and more! In order to make the briquette have a stable shelter, I specially found a strong box for it, sealed it with glue, and drilled several holes for it so that the briquette wouldn't be out of breath. I put it in a small room and lit a mosquito-repellent incense on it. I didn't expect mosquitoes to be rampant at that time. In the middle of the night, "coal ball" suddenly cried, and my father and I quickly came down from the third floor. It turned out that mosquitoes jumped in from small holes, making the "briquette" unable to sleep. He's asking us for help! My father and I took out my killer-mosquito killer.
I took the electric mosquito swatter, and my father picked up the "mosquito sprayer", "pa, pa, pa", "pa, pa". Soon, the mosquito died, was injured and ran away. > ┏ (^ω^)=。
6. Write a composition with the topic "My bag" at least 0.27 yuan/day. Members who open Baidu Library can view all the contents in the library >
Original publisher: 13905209446
1. My packing life is like a trip. We are travelers. What we have to do is to keep going, so that we can keep growing. During the trip, we learned everything about the world. I started traveling as soon as I was born. I have luggage, although there is nothing in it. As the years passed, I became more and more curious about the world in my luggage, and I began to feel the world with my heart. Soon there was more innocence and joy in my schoolbag, and I began to go to school. I keep walking, my bag is getting heavier every day, but I'm also happy about it, because I know more about the world. In this way, my schoolbag is getting heavier and heavier, and I am growing up. Until one day, I took my luggage, full of teachers' affection, parents' hope and friends' care, and started a brand-new trip. I started my junior high school life. I have gained a lot and lost a lot. There have been laughter and setbacks; There are failures and successes. Late at night, I walked in the endless darkness, without a sound. Suddenly, a cicada cut through the night sky. At home, the wind is still whistling outside, but I am thinking, thinking quietly, as if waiting until the end of time. Suddenly, there was another cicada singing, and I just came to my senses. Busy again. The exam is over and the results are not good. Although this happens from time to time, I always feel sad. It's late autumn, too. It's cold, and the flowers and plants are withered. Although I hate this desolate autumn, I can't stop it. What should come will always come. Looking back on this life for more than a year, it is full of ups and downs. Whenever I go home, I am always lonely. It was not until this summer that cicadas sang that I got some comfort and satisfaction in my heart. Every night, I will be immersed in this cicada. Summer has passed, and this cold autumn has made me a little frustrated. The exam has hit me again. I'm deeply involved.
7. Write a composition on my luggage.
Real touch, real feeling, I put the world in my bag. ...
-inscription
With rocks tempered by thousands of years of wind and rain, the bumps of swords and shadows clearly flow in my hands. The sound of fine sand and gravel sliding down can't stop me from moving forward firmly at all, and the unattainable top of the mountain can't scare away my persistence. Step by step, step by step, one victory at a time. At the moment I climbed to the top of the mountain, I put my perseverance into my bag with the mountain.
At present, it is a surging river. The magical nature makes this gentle water roar and rush like a wild animal, and every time it goes forward, it is so cautious. Wave after wave is unstoppable, and faith supports me. When I crossed the river, I put my strength into my bag with the river.
Stepping on the clear sand, my eyes saw the endless desert, and the scorching sun made the land look like a steamer. Water is very expensive. A small kettle will let me cross this desert, otherwise ... there are many tenacious lives in the gravel, and it is the liveliness of these jumps that makes me feel the agility of life. The moment I crossed the desert, I put my perseverance in my bag with this sand.
Pack your bags and let's go.
8. Writing a composition on the topic of simplicity is very textured.
This is a true story told to me by an old friend.
An old friend has a 3-year-old grandson. An old friend said that when his little grandson was two years old, he was taught to play a game of "pointing at what he said". When a friend said "nose", the little grandson's finger touched his nose; When a friend says "ear", the little grandson holds the ear in his hand. Eyes, mouth, hair, forehead and range are all "parts" of the head, because blowing your nose by mistake is very * * *. Friends will also let the little grandson say what he refers to, deliberately pointing the wrong finger and scratching for fun. This is the primary stage of cultivating children's cognitive ability and memory ability. After the five senses are familiar, enter the advanced stage, answer quickly, speak quickly, and cultivate children's reaction ability. My friend said that when I entered the advanced stage, I was defeated by my grandson. Seeing his mouth, Sun Xiao knew what he was going to say. When he made a sound, Sun Xiao pointed to what he called "parts". The little grandson said that he is sincere, but he can't "look at the shape and make a sound."
My old friend is a senior teacher, and the evaluation group organized by the province asked him to participate and went to other places to evaluate teachers' lectures. After going for a month, he came back to play "what to say" with his grandson, but an accident happened.
The old friend said, the little grandson pointed. The old friend pursed his mouth and tried his best not to let the little grandson see the mouth shape before he said aloud, "Eyes!" " "Grandson immediately pointed to his eyebrows. He smiled and said, "Wrong, wrong, shave your nose! ""The little grandson covered his nose and said, "Grandpa, you don't understand. This is called' answering neighbors', saying that eyes refer to eyebrows and eyebrows refer to eyes; Say ears refer to hair, and say hair refers to ears; When you say nose, you mean mouth, and when you say mouth, you mean nose ... "Old friend"! " He shouted and said, "Try again." Sure enough, the old friend said, "Hair!" The little grandson quickly pointed to the "ear"; An old friend said, "Mouth!" The little grandson quickly smacked his lips. On the other hand, the little grandson said that the old friend pointed, and the little grandson said "Mao!" My old friend stopped her hair. The little grandson said, "Grandpa is wrong, you should point to your ear!" " "The little grandson said again," Nose! " An old friend groped blankly over his head, which caused his wife, son and daughter-in-law to burst into laughter.
The little grandson jumped happily and said proudly, "Grandpa, there is something more advanced,' three don't take pictures'!" "Why not take three photos?" "Ask, answer, nothing." The son and daughter-in-law helped to explain the rules of the game, and the performance began.
The old friend said, the little grandson pointed. An old friend said, "Ears!" The little grandson answered, "nose!" Fingers caught the "hair"; The old friend said, "Eyes!" The little grandson answered "mouth!" Put your finger on the "eyebrows" ... the answer is irrelevant and the quotation is irrelevant. The little grandson did it quickly, was well-informed and accurate, and won applause and laughter from his wife, son and daughter-in-law. The old friend's face fell in surprise.
An old friend asked, "Who taught this?" The son replied, "Xiaoqiu." "Which Xiaoqiu?" "The one who can do magic." The old friend flew into a rage: "How did you make such an asshole friend? He is not allowed to come to our house from now on! "
Old friends also scared the little grandson to cry.
The author said, "This is a true story", which I believe. This true story is a masterpiece on the topic of "education", and I believe it more.
But our students' compositions are getting more and more complicated.
Professor He Yongkang said when talking about the composition of the college entrance examination in Jiangsu Province in 2004: "Some candidates use a lot of ancient poems or a lot of anecdotes of celebrities to prove' water' and' mountain stability', that is, they refuse to pay attention to the things around them and what everyone cares about and wants to say. As a result, it is a pity that the article downplayed the taste of life and the taste of the times. " When we students saw the topic of "pursuit", we thought, "Can we write about the pursuit of Li Bai and Qu Yuan?" They thought, "Is there a poem of Li Bai's lofty sentiments and a meaningful sentence of Xin Qiji?" They thought, "Can you write a few parallel and figurative rhetoric at the beginning and end?"
So our students' compositions are more and more "poetic" and "cultural"; There are no articles about thinking about reality, and simple narrative and argumentative essays are hard to see. Students with good writing skills write gorgeous and dignified lyric prose and argumentative essays.
Seeing the proliferation of students' gorgeous compositions and the hypocrisy and vulgarity of students' personality, our teacher called for simple writing and a return to the essence of writing.
I don't even know what simple means! ! ! Look at it. It should inspire you.
9. Pear Tree Write a composition on pear tree.
I love my home, but I love the pear tree downstairs more.
In spring, everything opens sleepy eyes and pear trees wake up. Under the touch of the spring breeze, it draws out new green buds; In the spring, grow stronger; After the baptism of spring rain, I became stronger! The pear tree in spring, like a young man, is healthy, strong and strong.
In summer, everything is soft, catkins and poplars are flying all over the sky, and the warm wind in summer brings a little lazy breath from time to time. However, pear trees are not lazy at all. It's just trying to absorb sunlight and rain, trying to blossom. Many things happen. Just after the early summer, the pear tree has blossomed several white and flawless flowers. If roses are made of milk and lilies are carved with jade, I can't think of a better word to describe pear flowers. Snow-white petals are wrapped in pale yellow stamens, and small flowers are covered with pear trees like snow. It's really beautiful.
Autumn is children's favorite season, because pear trees are about to bear fruit. We children wander around the pear trees every day, eagerly looking at those ripe pears, but afraid to pick them. Because the aunt who grows pears can't share it with you until the Mid-Autumn Festival. One night, my brother and I couldn't keep our mouths shut and stole pears. However, we were caught red-handed before climbing the tree.
In winter, snowflakes drift slowly and the wind is biting. Everyone has gone home, except the pear tree, which is still standing in the snow. It is pregnant with the life of the next spring and the dream of spring.
Oh, my pear tree, my favorite pear tree, your four seasons are equally wonderful, and you bring me more happiness.