The polluted river in my hometown is 200 words.

There used to be a clear river behind my house. Small fish swim happily in the water, and there are many tadpoles and frogs. The water plants are green and there are waves on the river. How beautiful!

However, after a while, many people threw the garbage into the river. Gradually, the water in the river turned black. Later, the fish and shrimp in the river could not survive and died one after another. When people approached the river, they smelled an unpleasant smell. Therefore, people gave the river a name-"smelly ditch".

Up to now, people are still throwing garbage into that stinking ditch, and the pollution of the stinking ditch is more serious. I seem to hear the river crying.

Every time I pass through the sewer, I will cover my nose and think back: how clear and moving this river used to be!

I really want to see it again for what it really is!

River pollution investigation report 300~400 words composition There is a river near my home, named Longshan River.

It turns out that this river is very clear and transparent.

Through the river, you can see cheerful fish and shrimp swimming freely in the river.

But later, the river slowly became turbid and smelly.

Why is this? I'm confused.

So, I investigated the pollution of this river.

After investigation, I found that there are several big sewage outlets, where the river water pollution is the most serious.

Every day at noon, some industrial sewage and domestic wastewater will be discharged from these outlets, giving off an unpleasant smell.

Moreover, because some tourists throw rubbish into the river at will, the river is seriously polluted.

Analyze those factories that discharge industrial sewage directly into Hanoi through drainage pipes.

There are many residential areas along the river, and all the domestic wastewater finally flows into the river.

Make the river smelly and muddy.

There are also small vendors who buy food by the river and throw all the leftovers of rotten leaves into the river.

Wait, some reasons cause river water pollution.

Conclusion The main causes of river pollution are: 1, industrial sewage and domestic wastewater discharged into rivers.

2. The market is poorly managed, and some market rubbish is thrown into the river.

Some tourists throw rubbish into the river when their quality is low.

It is suggested that factories should not discharge sewage into rivers, but should build sewage treatment plants for sewage treatment; Market managers should strengthen market management, transport garbage to garbage disposal sites, and should not throw it into the river casually; Visitors should consciously put garbage into the trash can, and should not throw garbage into the river. Protecting the environment is everyone's responsibility.

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The polluted river in my hometown There used to be a clear river behind my home. Small fish swim happily in the water, and there are many tadpoles and frogs. The water plants are green and there are waves on the river. How beautiful! However, after a while, many people threw the garbage into the river. Gradually, the water in the river turned black. Later, the fish and shrimp in the river could not survive and died one after another.

When people approached the river, they smelled an unpleasant smell.

Therefore, people gave the river a name-"smelly ditch".

Up to now, people are still throwing garbage into that stinking ditch, and the pollution of the stinking ditch is more serious.

I seem to hear the river crying.

Every time I pass through the sewer, I will cover my nose and think back: how clear and moving this river used to be! I really want to see it again for what it really is!

When the beautiful river was polluted, I returned to my hometown and saw a crystal clear river at my doorstep, like a sapphire; Like an angel's silk scarf, lost here.

The clear water hit the rocks, making the bells jingle.

This is music played by natural music.

On the big lawn by the river, the grass is lush and dotted with some small wild flowers in sky blue, purple and goose yellow, which is as beautiful as a fairyland.

But it didn't last long. The beautiful river disappeared and disappeared before our eyes.

This river is so dirty that it has become a stinking "garbage river". There is a strong disgusting smell from time to time.

The river is full of domestic garbage of the residents here: worn socks, shoes, clothes and hats ... The water and the river are everywhere.

Especially in summer, waves and strong smells fill the nearby rivers.

It turns out that in recent years, with the improvement of people's living standards, Japan has become better, but its awareness of environmental protection has deteriorated.

For convenience, people dump their garbage nearby.

A factory was built by the river, and the factory discharged sewage into the river without scruple.

In this way, a crystal clear river becomes turbid, polluting the air and destroying the ecological environment of nature. Even the trees on the shore were poisoned by drinking sewage.

Whenever my father mentioned it, he would sigh: "Alas!" The culprit is human beings who lack environmental awareness and think they are extremely smart. When he saw everything in front of him, my heart wept silently.

I really hope that people will wake up as soon as possible and let's act together to create a clear water and blue sky for our home.

This river has been polluted. Mention zebras, lions and rivers. There is a clear river in my hometown. Its name is Dai Yuhe, but in recent years, the water in Dai Yuhe is getting darker and darker, with garbage and bad smell.

The original crystal clear river water can still see groups of fish swimming around, but now it is only turbid.

Now this river, I don't know when it changed: the willows on both sides of the river began to shed their leaves before the summer passed, just like the sick old man, withered and withered; Flowers and plants are no longer full of vitality. They are dejected and listless, staring blankly at the stinking river; The small fish in the river don't know when they disappeared; There are still bubbles floating on the water, and occasionally one or two vague frogs jump out of the water, which is also bony.

In the past, rivers were the best friends of animals and plants, but today it has become turbid and smelly.

Herman River is not as clean and beautiful as it used to be. Garbage and dead fish and shrimp often float on the black water, and passers-by pass by with their noses covered.

Now a factory has been built by the river, and wastewater is continuously discharged into the water.

It didn't take long for Manjianghong to change.

Composition on river pollution (about 600 words) Part I: People always think that the oceans, land and air on the earth are endless, so they never worry about sending tens of millions of tons of waste gas to the sky and dumping hundreds of millions of tons of garbage into the sea.

Everyone thinks the world is so big. What kind of waste is this? We were wrong. In fact, although the earth is large, creatures can only live in the range of 8 km above sea level to the seabed 1 1 km, and 95% of creatures can only live in the middle of 3 km. People have wantonly polluted this limited living environment from three aspects.

Marine pollution: mainly crude oil leaked from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories and acidic solutions from mines; They pollute most marine lakes. Therefore, not only marine organisms are harmed, but birds and humans may also be poisoned by eating these organisms.

Land pollution: garbage disposal has become an important issue in major cities. Many of the tens of millions of tons of garbage every day cannot be burned or decomposed, such as plastics, rubber, glass, aluminum and other wastes.

They have become the number one enemy of urban health.

Air pollution: this is the most direct and serious, mainly from carbon monoxide and hydrogen sulfide released by factories, automobiles and power plants. Every day, people get diseases of respiratory organs or visual organs because of contact with these dirty air.

If we still ignore the warnings of experts, we will definitely be reduced to the point where there is no half an inch of pure land to live in.

Environmental pollution refers to the phenomenon that human beings directly or indirectly discharge substances or energy that exceed their self-purification ability to the environment, thus reducing environmental quality and adversely affecting human survival and development, ecosystems and property.

Specifically, it includes water pollution, air pollution, noise pollution and radioactive pollution.

Water pollution refers to the change of chemical, physical, biological or radioactive pollution characteristics of water body due to the intervention of some substances, which affects the effective use of water, harms human health or destroys the ecological environment, and leads to the deterioration of water quality.

Air pollution refers to the phenomenon that the concentration of pollutants in the air reaches a harmful level, which destroys the ecological system and the conditions for the normal survival and development of human beings and causes harm to people and creatures.

Noise pollution refers to the phenomenon that the environmental noise generated exceeds the national environmental noise emission standard and interferes with the normal work, study and life of others.

Radioactive pollution refers to the appearance of radioactive substances or rays exceeding the national standards on the surface or inside of substances, people, places and environmental media due to human activities.

For example, exceeding national and local pollutant discharge standards, discharging pollutants in excess of categories, quantities and concentrations; Loading and transporting oil or toxic goods without taking measures to prevent spillage, causing the goods to fall into the water and causing water pollution; Illegal discharge of toxic and harmful substances into the atmosphere, causing air pollution accidents, and so on.

With the development of science and technology and the improvement of people's living standards, environmental pollution is also increasing, especially in developing countries.

Environmental pollution is becoming one of the common topics in the world.

Due to people's insufficient expectation of the negative impact of highly developed industries and unfavorable prevention, three global crises have resulted: resource shortage, environmental pollution and ecological destruction. Humans constantly discharge pollutants into the environment.

However, due to the diffusion, dilution, redox and biodegradation of atmosphere, water and soil, etc.

The concentration and toxicity of pollutants will naturally decrease, which is called environmental self-purification.

If the discharged substances exceed the self-purification capacity of the environment, the environmental quality will change adversely, endangering human health and survival, thus leading to environmental pollution.

Environmental pollution will reduce biological yield and aggravate environmental damage.

Environmental pollution sources mainly include the following aspects: 1) waste smoke, waste gas, waste water, waste residue and noise emitted by factories; 2) Waste smoke, waste gas, noise, water theft and garbage discharged in people's lives; 3) Exhaust gas and noise emitted by vehicles (all fuel vehicles, ships, airplanes, etc.). ); 4) Water from farmland irrigated with chemical substances such as chemical fertilizers, pesticides and herbicides.

5) Mine wastewater and waste residue.

The harm of water pollution is self-evident. Water pollution and water quality deterioration have brought serious environmental protection problems to human health, human life and production, which is the biggest problem faced by human beings in modern life. To solve this problem, we must start from the foundation. First of all, we must publicize a lot to raise people's awareness and strengthen environmental awareness. Second, we should recycle waste, reduce the felling of trees and strengthen the control of white pollution. Use less plastic products. Finally, we should improve the cleanliness and make the city cleaner. For the sake of the earth's tomorrow, we must work hard and protect the environment now. Here, we put forward the following suggestions: implement garbage sorting and bagging. This can not only reduce the workload of sanitation workers, but also make better use of waste, reduce pollution and save resources. Use less plastic bags and try to use bamboo baskets when buying food. Use pens with replaceable refills whenever possible. Reduce the waste and garbage of ballpoint pen shell. Try not to use disposable lunch boxes when going out to eat. Sowing green is the hope of sowing surplus garbage and environmental problems, and the recycling and comprehensive utilization of garbage (2) Science lies in the sea bathroom. Drinking water is becoming a trend now, although the media has introduced the disadvantages of drinking water more than once. However, drinking water aquariums are still expanding. Drinking water not only refers to pure water, but also includes mineral water, distilled water and even space water. However, drinking tap water that we grew up drinking has become relatively non-potable water. It is not ruled out that drinking water is popular at present, and speculation has played a certain role, but it reflects that the current water pollution has reached an unbearable level. The second part: Whenever I sit in the classroom with bright windows, I walk by the clear lake in Kagami Akira and fly on the grassy football field.

But a crisis that has been lurking around us for a long time is slowly erupting, and maybe one day this beautiful scenery will leave us.

All this is caused by human beings.

The key to the gate of heaven and the key to the gate of hell are in human hands.

We middle school students should consciously fulfill the responsibility of protecting the environment, improve environmental awareness, strengthen the concept of legal system, and implement environmental protection actions.

Be a "little guardian of civilization".

Our earth is a beautiful planet.

But water and soil ...

This morning, the teacher took us to a small river in the school to see the river.

When I came to the bridge, I looked down and was particularly surprised: Why is it so dirty? There are all kinds of dirty things lying on the river, badminton, basketball, plastic bags, coke cans, waste paper … I think the river I saw here before is very clean and beautiful.

Especially in spring, the river is clear, the willows sprout, the branches hang upside down and sway with the wind, which is really beautiful.

The grass is green, bloom is gone, and other trees are awake, full of vitality. The scenery is particularly charming.

But at present, this river has been polluted by people.

Small fish can't see either.

I think the little fish must have been poisoned by this dirty water.

Even if they were not poisoned, they must have fled somewhere else.

It seems that when they run away, they should hold an umbrella to avoid being hit by mud.

I think the river will be dirtier if this goes on.

I think our children must all like clean rivers! I don't want to see a dirty river! If we all care about and protect the river and the surrounding environment, then we will have a clean river and environment.

Fish also like clean rivers! Action is not as good as action, so act quickly! We can sweep the floor, pick up garbage and water the flowers ... in this way, in a few years or even months, our river will be clean and beautiful, several times more beautiful than the original school! In such a beautiful environment, we can play, play, study and live more happily. ...

This week, the teacher gave us homework to investigate environmental pollution.

I think of the polluted river in my hometown. I pass it every day after school. Why didn't I think of investigating the cause of its pollution? Under the guidance of my mother, I observed along the riverbank and took notes in my notebook.

The first thing I saw was several factories. Sewage pipes directly discharge dark green and thick black sewage into the river. A large amount of white foam and a small amount of discarded plastic bags float on the water surface of the sewage outlet.

The sewage stinks on my nose. It is conceivable that this kind of sewage contains a lot of harmful substances.

The vegetable market has begun to collect stalls, and the stall owner is dealing with garbage.

A boss who buys vegetables is waving a broom to "fly" rotten cabbage. The worthless cabbage plopped into the river, floated for a while, and then sank into the water.

Alas, when did our mother river become a garbage place?

At the end of the street is a large area of farmland, and hardworking farmers are spraying pesticides on crops.

The bottle of pesticide was placed by the ditch, and I walked over and smelled the choking smell of pesticide.

After many pesticides are used, "toxins" will be left on vegetables and fruits, not to mention the water in these farmland will flow into the river.

Along the way, I only saw the polluted and dark river. I didn't find any aquatic plants in the river, and I seldom saw any trees by the river.

I feel sad when I think of some scenic spots I have been to, clear water, swaying aquatic plants and weeping willows to the river. Why don't people know how to protect the rivers in their hometown? When I got home, I told my father about it. My father told me that when he was young, the river was crystal clear, no different from the scenic spot. He and his friends often swim in the river, but I didn't know it had become like this now.

I looked up the information on the Internet and found that this polluted river contains many chemicals harmful to human beings.

For example, lead can make people anemia, insanity, and make children's intelligence decline; The smell of river water affects people's appetite and makes them mentally irritable; This river contains a lot of mercury, which will make people slurred speech and hearing failure.

Although people don't drink river water directly, after the river water evaporates, the rainwater also contains substances harmful to human health.

The fish in the river are poisoned, and people who eat these animals must be indirectly hurt.

It pains me to think of the pollution of this river. Why do people only care about their own interests and destroy the environment? How I hope people can wake up, protect our mother river and restore the river to a clear state.

Changes of environmental pollution in my hometown. The theme is the story of a small river. How to write a composition? First, a clear theme, a clear writing scope. This exercise requires writing around the theme of "protecting the environment". Therefore, we understand that we should not litter, throw waste batteries, protect birds (animals), plant trees, save water and electricity, refuse to use plastic bags, use convenient chopsticks boxes, eat rare wild animals, and use environmentally friendly products. It is a sign of conscious environmental protection. From these examples, you can choose the center and materials you want to write. You can also expand your imagination and write about the changes in your hometown environment; You can also write a fairy tale around the theme of "protecting the environment"; You can also write about an event in your life, and so on. In short, you can just write the theme of "protecting the environment". Third, write your true feelings. Good exercise needs true feelings, and true feelings come from truth. Therefore, it must be true and accurate to reflect the investigation, and it is not possible to guess or imagine. Through the investigation of the hometown environment, we will have many discoveries and feelings. Write down these feelings with your pen. Let everyone pay attention to environmental problems. Guidance on writing ideas (1): At the beginning of the investigation report, you can simply explain the object, purpose, time, etc. This environmental survey. Example 1: On Saturday, I went to Xinjiang with some classmates to investigate the environmental situation in my hometown. Example 2: Recently, we conducted a survey on campus greening. In the middle, you can specifically introduce what you have investigated, so that the narrative is more conditional in a certain order. Write down your feelings. Do you have any good suggestions on environmental protection? You can also write it down. Conclusion: You can summarize the full text and point out the center. You can express your true feelings and call on everyone to contribute to environmental protection. Finally, don't forget the signature and date of the investigation report. Fan Wen: White Pollution Survey Report Location: Near the school Survey Members: All students Survey Time: 2065438+March 9th 00 Plastic products have brought us a lot of convenience. And the price is very cheap. However, have you ever thought that while it brings convenience to people, it also brings people a "white disaster"? We have conducted a small-scale investigation and study, consulted various materials and made an analysis and summary. Writing Thought Guide: Future Hometown Tips: Maybe the environment around us is not very good at present, so imagine your future hometown in your mind! Maybe in a few years, with the joint efforts of everyone, the environment in my hometown will become particularly beautiful! Beginning: Summarize the overall impression of the environment in a few years. Pay attention to deduction. Chinese: Describe the environment of a place in detail, and pay attention to presenting beautiful scenes one by one. In the middle, you can write about people's behavior changes. For example, people used to litter, but what will people do in the future? Expand your imagination and write it boldly. Conclusion: Summarize your own feelings and express some feelings about environmental protection. Language should be concise. A few years later I fell asleep in my hometown. Suddenly, I was taken away by a car. I hope to come. This car was replaced by an old man. I saw the earth after 100 years, with lush trees; The river is crystal clear; The stream is jingling and singing; When you come to the forest, the animals jump, the leaves are fresh and delicate, and the air is sweet and attractive. When I came to the stream, I raised a mouthful of water, clean and pure. When we came to this city, the flowers were in full bloom. People are watering flowers and fertilizing grass. When they came to the seaside, the little fish were jumping around. Shrimp looks around; As if to say, "The sea is beautiful! The sea has become much more beautiful than before! " When I came to the villa, I saw the leaves, all wet. It must have just rained! People no longer cut down trees. Some people are still planting trees. Of course it's beautiful. People don't cut down trees to cook. They all use pollution-free equipment. Cars don't smoke, planes don't pollute the sky, and nature is quiet. The rivers are endless and the waves are rippling, which makes people feel how beautiful this is, and makes people feel that nature cannot be destroyed and water should be cherished. I bet in a few hundred years. It will be more beautiful, majestic and gorgeous than I imagined. Moreover, we humans will be happy and Mother Earth will smile. How beautiful, spectacular and proud it is. In a few years, my hometown will be more beautiful. I was born and raised in my hometown, and I have rich feelings for my hometown. In a few years, my hometown will be more beautiful! A few years later, there was a green factory in my hometown, which would not pollute, but let flowers and trees grow continuously. It will become a forest, a lawn and a big garden ... flowers and trees have a new green life and decorate my hometown carefully. A few years later, there was an eco-car in my hometown, which could be started without gasoline. It is economical and worry-free. I feel the imagination of trees and flowers in the house. Looking out, all the trees are green, and the blue sky is the background of white clouds. I have good dreams every day. A few years later, my hometown had environmentally friendly milk and food. When I open the green leaves, it smells like trees and grass, and tastes like flowers. It's all natural. There are no patients in the hospital. A few years later, my hometown had ... always said. A clean and beautiful home. Wonderful topics have long known the importance of topics. I think we all know that we usually watch news online. Which topic interests you the most, you should read it first. Similarly, if your topic is exciting enough, then everyone will definitely want to read your article for the first time. Tomorrow in my hometown is better, I love the new forest in my hometown, the changes in my hometown are dangerous, the town of singing and dancing is surrounded by cattle and sheep, and the night of bamboo forest is spring breeze and green Jiang Nanan. If you want to investigate the air quality, you can let your children watch the weather forecast on TV and record the daily weather and air quality index. ...

If all the rivers dry up, those lively fish can't play with their partners, they can't laugh when they play, and they can't see the waves of the river because of their laughter. The fish's laughter disappeared, and they could only spit out sparkling bubbles. They can only wait for death in the dry and dead river. They struggled and rolled painfully, as if they were controlled by magic, and their young bodies were propped up.

When all rivers dry up, rivers, lakes and oceans lose their sources. What will their disappearance bring to people? Abundant underwater creatures will be greatly damaged. Many aquatic products and creatures seem to be entangled in the body by the devil's immobility. They can't move, and gradually die in the dry river.

If all the rivers dry up, birds will have to fly in the sky without water and look at the grass without water and the mountains without rivers. At this time, everything is so dim and abrupt, and the birds are twittering about the scene before them. The flowers and plants by the river are about to wither, and their beautiful reflections in the past no longer exist. The grass bent down, the flowers were sallow and graceful. It looks like a listless, colorful flower bed, slowly losing its vitality ... the birds are thirsty after flying for a long time. They searched helplessly. They are by the dry river, jumping left and looking right. Suddenly, they saw a puddle in front of them, and the water in it was very muddy. They can't think so much and can't wait to grab drinks. The electricity we need every day is gone, the tap water is gone, the mineral water is gone, the shoes, clothes and socks are gone, even the sweet and delicious popsicles are gone, and the laughter of the whole world disappears with the water.

If all the rivers dry up, the world will be a dead world, a desolate world and a dead ocean.

If all rivers dry up, the last drop of water will be human tears! Therefore, we should start from small things, from now on, protect and save water, so that these things will never come true!

Please indicate the source for reprinting. The polluted river in my hometown is 200 words.