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Unit 4 oral communication materials in the first volume of Chinese in the sixth grade of primary school

Treasure resources

First of all, cherish the importance of resources.

The total amount of water resources in China is about 2.8 trillion cubic meters, ranking sixth in the world. The per capita water consumption is more than 2 100 cubic meters, accounting for only a quarter of the world's per capita level. It is a country short of water, and more than 400 cities in China are short of water. In particular, the water shortage in the western region is very serious, and it is very difficult for people and animals in some mountainous areas to drink water. China is the most water-deficient country in the world, and its water consumption is facing severe problems. Water for production and life is still squandered at will, and precious groundwater is overexploited or polluted. We should cherish water resources and save water.

Save not only water, but also forest resources. The total forest resources in China are insufficient, and the forest coverage rate is only 18. Pay attention to turn off the lights when you leave, and you can use efficient and energy-saving light bulbs. According to the estimation of the U.S. Department of Energy, replacing traditional light bulbs with energy-efficient light bulbs can reduce 400 million tons of carbon dioxide emissions. In addition to electric lights, we should also pay attention to the use of other electrical appliances, try to choose low-consumption and energy-saving products, cut off or turn off the power supply when not using electrical appliances, and keep the refrigerator frost-free. When the weather is not very hot in summer, it is best to use fans or electric fans instead of air conditioners. When using the air conditioner, don't adjust the temperature too low, just about 26℃.

Second, save water resources. Many wastewater can be recycled. The water for washing face, hands, vegetables, baths and clothes can be collected to clean the floor, flush the toilet and water the flowers. Taomi water is a good detergent, so you can stay to wash dishes and chopsticks. Oily pots and pans should be cleaned with used napkins first, which saves water and is convenient to wash. You can also use less detergent to reduce water pollution.

Third, save paper. The recycling of paper can avoid methane released by landfill and reduce the felling of trees. According to statistics, recycling one ton of waste paper can produce 800 kilograms of recycled paper, which can reduce the felling of 17 trees. Saving paper is to protect forest resources and the environment.

Fourth, reduce tail gas emissions. Traffic waste gas and industrial waste gas are the main sources of domestic waste gas. Try to go out by bus or taxi, or by bike, and try to take fewer private cars. The city is filled with smoke from burning garbage and goods produced by factories. They should treat and filter the waste gas and then discharge it to reduce pollution. Plants can absorb carbon dioxide and then release oxygen, so we should plant many trees, especially on the roadside.

Five, garbage classification and treatment. Garbage sorting can recycle valuable resources and reduce the energy consumed by landfill and incineration. For example, waste paper is sent directly to a paper mill to produce recycled paper; Disposable commodities such as beverage bottles, cans and plastics can also be sent to related factories to become renewable resources; Household appliances can be sent to specialized manufacturers for decomposition and recycling. Different garbage bags can be prepared at home to collect waste paper, plastics, packaging boxes and so on. And the total amount of garbage is .21%every day, which is equivalent to 61.52% of the average forest coverage rate of the world. Uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu The forest quality is not high, and the average volume per hectare is only 84.73 cubic meters, which is equivalent to 84.86% of the world average. This is a warning from forest resources!

Electricity is indispensable everywhere. Electricity has brought us various conveniences, but we should save electricity, because almost all electricity is generated by burning standard coal, and the coal stored in China is only enough for mining 100 years! Think about it, 100 years later, what will our descendants do? Therefore, we should save electricity.

At present, the situation of protection, utilization and sustainable utilization of land resources and mineral resources in China is not optimistic. Although we implement the strictest land management system in the world, in some places, the phenomenon of indiscriminate occupation and use of agricultural land and basic farmland still occurs from time to time; In our large and small cities, the "pies" paved with reinforced concrete are still expanding in all directions, devouring several hectares of grain fields around.

Although the supply of mineral resources has become the bottleneck of rapid economic development, in some places, unlicensed small mines marked by waste and destruction of resources are still being exploited and dug indiscriminately; Even large mines continue the extensive mining method of "eating half and throwing half"; Littering tailings not only makes the mineral resources that can be used originally abandoned, but also may form debris flow in rainy season, which becomes the killer of destroying fields, crops and people's lives and property; Ground subsidence and ground fissures in mined-out areas not only make farmers lose the land resources on which they depend, but also threaten their life safety. Our energy is already in short supply, and new houses with large-scale heating like mushrooms after rain are still wasting oil and coal resources.

Second, how to cherish resources

Cherish water resources: after running out of water, tighten the faucet to avoid the waste of "one river of clear water flows eastward"; If the faucet is found to be broken, it should be repaired in time to avoid a lot of water loss; Don't underestimate the discarded batteries, because a button cell will pollute 600 tons of water. If you throw it into the water, it won't be drinkable.

Cherish forest resources: don't throw manuscript paper around, don't throw notebooks with few pages into the trash can; Don't cut down and trample on flowers and trees at will; Plant trees and care for flowers and trees; Do not use disposable paper cups, chopsticks, etc.

Third, how can I save resources?

5| Comments

2011-10-3016: 01サツッチ | Level 1

Children should think for themselves. Oh, I agree.

3| Comments

2011-1-18: 04 solitary mouth or の | level 4.

"I thought you were infinitely vast and didn't care about losing a shadow. I thought you had infinite treasure and didn't care about taking a little peace. I thought you were strong, but your tears are flowing. I thought you had boundless maternal love, but you gradually lost your strength. "

The scarcity of existing resources and the demand and pressure of future development, let us listen to the warning of nature. After encountering "coal shortage", "electricity shortage" and "oil shortage" in succession, Chinese people tasted the bitterness of resource shortage for the first time. In the impatience of queuing to buy candles, in the sudden panic of falling into darkness, the alarm bell has actually sounded!

After decades of investigation, geologists have confirmed that China has become a "resource-weak country" because of its huge population base and rapid economic development. After 50 years, almost all mineral resources except coal in China will be in serious shortage, and about 50% of them will be exhausted. People of insight warned that 20 10 China will enter an era of severe water shortage, and our future generations will pay a heavy price for our profligacy today.

This is a very dangerous signal. Lack of resources will be the biggest difficulty that restricts the rapid development of China's economy, and it will also be the biggest hidden danger that harms our better life.

In fact, under the wheel of development, how to deal with the challenge of resource shortage has become a worldwide topic. In all countries of the world, conservation has become a trend, and the awareness of resource conservation and protection in many countries has been integrated into every detail of life.

These countries are much richer than us, but we are ashamed of their careful use of resources.

The United States is a country rich in resources, and its national consumption level ranks first in the world. However, American students' textbooks are reused. A textbook needs at least eight students, with an average service life of five years. The service life of textbooks in China is only half a year! There are 220 million primary and secondary school students in China. At present, if a textbook can be used continuously for five years, after deducting the cost, the cost saved is considerable! And how many forests will be spared in the process of recycling textbooks!

Our neighbor Koreans saved their teeth. Because they cherish resources, they have developed food toothpicks with potato starch or rice flour as raw materials. Disposable tablecloths for restaurants and disposable toiletries for hotels have long since disappeared in Korea.

Disposable chopsticks were originally invented by the Japanese. Japan's forest coverage rate is as high as 65%, but they are forbidden to cut down trees on their own land to make disposable chopsticks. The wooden chopsticks they used were all imported from China, and then processed into pulp and exported to China for foreign exchange.

Hewlett-Packard is a world-famous big company with strong strength and deep pockets, but they have set up "spare boxes" and "recycling boxes" in their offices. All the paper that has been used on one side is put into the spare box, others can reuse the back of the paper, and the paper that has been used on both sides is put into the recycling box for recycling. In any Epson company in the world, all double-sided printing paper is used to paste various reimbursement documents after it is used up.

Behind these seemingly trivial behaviors is an increasingly recognized knowledge: no matter how rich you are, you have no right to waste resources.

Saving resources depends on everyone's actions.

Accumulate a feather and sink a boat. In our developing country with a population of1300 million, if everyone does not pay attention to saving resources, then our resource reserves will not be able to carry the ship developed by the Chinese nation;

If China, with a population of 654.38+0.3 billion, really practices economy and opposes waste, the strength it embodies will not only be the support for our country to move towards the future, but also a gift from our nation to the earth and mankind.

Don't do it with little evil, and don't do it with little good. Everyone can stop wasting things in life and bow down where they can be saved.

Turn off the faucet when washing soap in the shower, and you can save 60 liters of water in the shower; Brush your teeth with a glass of water, only 0.5 liter of water. If you leave the tap on for 5 minutes, you will waste 45 liters of water. The toilet uses water-saving appliances, which can save 4-5 liters of water each time; When washing vegetables, use a basin instead of turning on the tap. A meal can save 100 liter of water. ...

With a population of 654.380+0.3 billion, less than one pair of disposable wooden chopsticks are used, which means that thousands of acres of forests are protected from bad luck. Every family in China uses one less plastic bag every day, which can save a lot of oil consumption and reduce environmental pollution.

Recycling 1 ton waste paper can produce 800 kilograms of good paper, cut down less 17 trees, save 3 cubic meters of landfill space, save more than half of papermaking energy and reduce 35% of water pollution.

If energy-saving light sources are adopted, our lighting power consumption will be reduced by 60%, and 74 billion kWh of electricity can be saved a year, which is equivalent to saving 29.89 million tons of standard coal. If all the existing 65438+300 million refrigerators in China are replaced by energy-saving refrigerators, 4,365,438+32 million kWh of electricity can be saved every year, which is equivalent to the power generation of half the Three Gorges Hydropower Station. ...

It is no exaggeration to say that each of us holds precious "resources" and the power to stifle and seize the "lifeblood" of the development of these ethnic groups, and the harm to it and love lies in our actions.

In 1950s and 1960s, the Party and the government vigorously advocated the spirit of saving electricity, a drop of water, a drop of oil, a catty of coal and an inch of cloth. Now the economy has developed, the income has increased and the life is better, but the spirit of thrift is not out of date, but it has become more meaningful with the development of the times.

Since ancient times, the Chinese nation has always regarded thrift as a virtue worth promoting. Today, our 20-word civic moral program will also be written into the book of thrift.

Choosing frugality is not only to choose a lifestyle and pursue a spiritual quality, but also to build a road to the future.

Its name is sustainable development.

We need 654.38+300 million China people to work together and practice together.

The second point: the bad behavior of polluting the environment, wasting resources and destroying homes in life.

The waste of resources is the most accessible in daily life, that is, the waste of material resources and the waste of intangible resources.

Material waste is the most common, such as food waste (daily water and food), energy waste (such as uncontrolled electricity and gas waste) and functional waste (such as disposable goods). ), idle waste (for example, most of the land is idle, a small number of old household appliances are idle, and two or three mobile phones are idle. ) and so on.

Intangible waste generally refers to technology waste, policy waste, talent waste and so on. In this life, ordinary people are not easy to contact.

Environmental pollution sources mainly include the following five aspects:

1] Waste smoke, waste gas, waste water, waste residue and noise discharged from factories and workshops;

2) Smoke, gas, noise, dirty water 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 where chemical substances such as fertilizers, pesticides and herbicides are widely used;

5) Mine wastewater and waste residue.

The third point: Why and how to cherish resources?

Sinful human beings:

Although today's developed earth environment looks optimistic, there are very serious hidden dangers, which are all man-made: cutting down trees at will, setting up chemical plants, and discharging harmful liquids at will. "The annual emissions of gases that pose a greater threat to mankind in the world exceed 600 million tons ...; It is estimated that by the middle of the next century, one third of the earth's surface will be in danger of desertification, and 6 square kilometers of land will be desertification every year, threatening more than 60 countries ... "What do people think of these shocking figures? From 23 million years ago to the appearance of forest apes180 thousand years ago, and then to the highly developed civilization era of human beings, nature has always been "responsive" to everyone, which has further bred human greed.

For example, the Mulan River in China was originally a crystal clear river in the early 1950s, but now it has become a polluted river, and fish and shrimps have disappeared, adding another scar to our mother earth. Isn't this a wake-up call for mankind?

Therefore, I solemnly suggest to people who haven't realized it:

First, if human beings want to conquer the terrible nature, they must respect it. We should not only be cautious about transforming nature, but also boldly practice and improve it, so as to control nature and make our own interests develop harmoniously with nature. We must never repeat the mistake of "polluting first, then managing" in western developed countries.

Second, starting from me, first choose a lifestyle that is conducive to protecting the environment. Be kind to our home and the earth and create a beautiful living environment.

1, saving resources and reducing pollution.

(1) Be proud of saving water. Turn off the tap at any time to prevent dripping.

(2) Use detergent carefully and use soap as much as possible to reduce the pollution of chemicals in detergent to water quality.

2. Green consumption and environmental protection choice

(1) Use unleaded gasoline, cadmium-free lead batteries and phosphorus-free detergents to reduce water and air pollution.

(2) Buy low-priced household refrigeration appliances and hairless mousse to reduce the pollution to the ozone layer.

3. Repeated use for many times

Try to use disposable goods less and use durable goods more. If disposable plastics and lunch boxes are not used, white pollution will be reduced; Do not use disposable chopsticks; Bring your own shopping bag or basket.

4. Classified recovery and reuse

Do not throw waste batteries, waste plastics and other garbage and waste; Classify garbage, turn waste into treasure, recycle resources and benefit mankind.

5. Protect the existence of all things in nature.

Do not hunt and use rare animals and protect animals, and cherish and protect wild animals and plants; Afforestation, care for every inch of green space, every flower and every tree around you.

6. Pay attention to hygiene and protect the environment

No spitting, no littering, no smoking and no noise in public places.

As a primary school student in the new era, I advocate that students improve their awareness of environmental protection, make contributions to environmental protection and benefit future generations. Because: protecting the environment is urgent.

The fifth point: the golden idea of environmental protection advice

1, using phosphorus-free detergent. When using phosphorus-containing detergent, a large amount of phosphorus will enter the urban water body, causing the water quality to decline and the water body to turn black and stink. We can choose "phosphorus-free" detergent to reduce pollution.

Please turn off the faucet at hand and advocate multi-purpose of one water. A faucet that can't be turned off tightly can drain 1-6 tons of water a month. It's easy to turn off the tap conveniently, and multi-use of one water is the concrete embodiment of saving water.

Please classify and recycle the renewable resources, and pay attention to recycling the waste plastic products in time.

Please use less disposable products, such as plastic bags. Disposable products bring us convenience, but also waste a lot of valuable resources. "disposable" items, we really can't afford to consume!

5. Please choose environmentally friendly building materials to decorate the living room. Many people will feel headache and nausea after living in the newly renovated house, which is caused by the pollution produced during the decoration process. (If materials containing benzene and other harmful substances exceed the standard are used) Therefore, I would like to remind everyone to use environmentally friendly materials as much as possible when decorating.

6. Refuse to use wildlife products. If you don't wear rare animal fur clothing, try to wear natural fabrics; Refuse to eat wild animals; Traveling in the wild, not poaching wild animals and so on.

7. Promote the purchase of green food.

References:

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/question/332443471.html agreed.

4| Comments (1)

2011-1-19: 30 Blue Q Paradise | Level 2