水污染 英语课上演讲ppt文稿
Water_Pollution水污染英文PPT幻灯片课件
For government
1To establish the urban sewage treatment system (城市污水处理系统的建立 )
2 To restructur the Industrial（调整产业结构）
3.To develop the new water sources
There are many influence that we can’t describe them by words. So I will
show you some pictures.
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Discharging sewage into water
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Water hyacinth
水葫芦
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4.To strengthen the planning and management of water resources
5.To control the agricultural non-point source pollution （控制农业面源污染）
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For Business
1. To reduce water consumption(减少耗水 量)
2. To buy equipment of sewage treatment (买污水处理设备)
3. Don‘t discharge sewage into water. (不要乱排污水)
4. To estiblish the water recycling system
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For individual
• Damage Harm to human 's health
• Destruction of Marine fishery resources and aquatic products
waterpollution（水污染、环境保护）有相应PPT
waterpollution（水污染、环境保护）有相应PPTGood afternoon, ladies and gentleman! I am glad to stand here to take my presentation. Today I would like to talk about one important thing in our life—water! As the content shown, my presentation is divided into five sections.First, let’s discuss the signification of water! "No water, no creatures" It's true that the human beings will run the end if there is no water in the world. Man can live for about 7 days without any food, but could you live for more than 3 days without water?I guess your answer is no! C omprising over 70% of the Earth’s surface, water is undoubtedly the most precious natural resource that exists on our planet. Without the seemingly invaluable compound comprised of hydrogen and oxygen, life on Earth would be non-existent: it is essential for everything on our planet to grow and prosper.Although we as humans recognize this fact, we disregard it by polluting our rivers, lakes, and oceans. My dear friends, do you still remember the clear stream near your house when you were a child? When we were children, the stream was so clean that we can even see our image upon the water surface. When we were children, we used to go swimming and capture fishes in the river. When we were children, each family drank from it. But now, a few things changed gradually. The clean stream was disappear and replaced by a dirty river.So why does this matter? Let’s seek the answers from the picture! Ascan be seen from the cartoon, industrial effluent, agricultural chemicals and domestic waste water was discharged directly into the river, which make the water dirty. People who make the waterclean through water purification plant drink the water from this river. However, the animals that live in this river are unlucky and miserable. They said angrily. “Hey! Think about us, too!”No doubt, there are many factors that lead to water pollution. Let's take a proper look at three main causes of water pollution.On one hand, the waste from the industries or factories contributes a lot to the problem of water pollution. They use injection wells to insert all the harmful and insolvent materials into the water bodies. Emission of such materials proves to be fatal due to its ill effects on the health of humans and animals.One the other hand, let us take daily life swage into consideration, sewage often contain feces and the waste from household chores. These wastes are controlled through sewage pipes which is treated in water treatment plants. However, if sewage is left unattended, it causes water contamination and gives rise to many waterborne diseases. Many developing countries who do not have access to good living conditions and water face the problem of sewage and water pollution. Even in the developed countries if the sewage is not treated well, it will create many health problems and effect the fresh water by killing the organisms livingin it.Last but not least, the farmers or the landowners that are situated near the fresh water bodies contribute to the pollutants which mix up into the water polluting it. The farmers who produce crops on large scale, need to treat and nurture their crops well to provide good quality of food to the increasing population. Taking care of these crops comes at a great price due to the usage of pesticides and fertilizers. These pesticides get washed away due to rain which eventually flows into the freshwater bodies harming the aquatic life and bringing down the quality of drinking water.What can we do to protect water? First, save water! If you save water, there is lesser contaminated water to treat, and the pressure of the same on the resources becomes minimal. Save water with simple steps like turning it off when washing vessels or brushing your teeth, not using the washing machine when the load is not high, using a mop or cloth to wash the yard instead of a hose pipe and the like.Secondly, watch what you are throwing! Keep a lookout for what you're discarding. Never, ever throw oil, paints, litter and things like that into the sink or the toilet. Somewhere down the line, it mixes with the water sources and adds to the contamination. This also includes not salting the driveways in the winter to get rid of the snow. The salt finds its way into the nearest water body, killing off fish in its wake. Also, take your car for regular servicing. The oil leaks and chemicals that it is giving off is going into the nearest water body and causing pollution again.Then, go easy on the chemicals! All those pesticides and fertilizers that you're using in your garden? They are really harmful and poisonous when mixed with water. Basically, not fit for human consumption. How's that connected? These pesticides and chemicals find a way into the water resources and pollute the water further. One way in which you can prevent this factor is to have a lot of plants in your garden. These act as buffers and prevent the chemicals from escaping into water bodies.In addition,reducing pollution in the air could reduce water pollution. Changes to agricultural practices could provide a solution. Improvements to sewage treatment systems wouldreduce pollution.My dear friends,Water is the source of life, but it is not inexhaustible. If we did not take action now, the last drop of water in the world would be man’s tear!Let's act together, cherish water, save water and protect water! That’s all, thank you!。
水污染--英语课上演讲ppt文稿
The last drop of human, will be tears of remorse after environmental damage
PART1
1.what is the problem we are facing now?
2.Is this water in your hometown clean?
pollution which has long ignored by us.It is high time we
take actions.
知识回顾 Knowledge Review
祝您成功！
problem,water resources are so scarce, water pollution is also very serious.I want to say: when the water of life, the source of life is all dirty water, what can we drink?
In my mind, the water environment of my hometown is not as good as before, may be your hometown also faces the
same situation.
Groundwater accounts for water resources in China118citiesFra bibliotekclean
Light pollution Serious pollution
The proportion of national drinking Groundwater
水污染-英文版课件PPT精选全文完整版
Other food-processing plants discharge fruit and vegetable skins, seeds, leaves, stems, and other vegetable wastes.
Oil spills from tankers at sea or leaks from underground storage tanks on land are very difficult to control
Oil spills at sea decrease the oxygen level in the water and cause grave harm to the creatures living in the sea.
2021/3/10
5
As water moves along or beneath the surface of the Earth, it dissolves minerals and matter from decaying plants and animals.
The principal positive ions (cations) in natural water are sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), and sometimes iron (Fe2+ or Fe3+).
Domestic sewage contains a wide variety of dissolved and suspended impurities: a. organic materials-food and vegetable waste b. plant nutrients- chemical soaps, washing powders c. disease-causing microbes微生物
水污染英文版课件
03
Standard for heavy metals
The concentration of heavy metals such as lead, cadmium, mercury, etc. should be very low to avoid toxic effects on human health and the environment
Non Point Source Pollution
Non point source pollution refers to the diffuse discharge of pollutants into a water body from a variety of sources, such as fields, roads, and stormwater runoff
Causes of Water Pollution
Industrial waste
Chemical reserves, heavy metals, and organic compounds are often discharged into water bodies during industrial production processes
Setting up treatment facilities
Establishing advanced treatment facilities such as sewage treatment plants, garbage treatment facilities, etc. to ensure that the water quality meets the standards before it is released into the environment
水污染-英文演讲ppt
Thank you !
WATER POLLUTION
Yangzhou, China Miles
The four basic natural resources are water, air, land and energy. We need water for multiple uses and a certain quality is required. Its use leads to the generation of wastewater that can cause an impact on the environment.
As far as future prospect is concerned, I am sure that good results will be achieved in this respect. Rivers which used to be contaminated by industrial wastes will be cleaned and fish which could not live there a few years ago will be again. To conclude, it seems obvious that tomorrow will be better and brighter only if everyone does his part and tries hard to seek solutions for its control.
In addition, factories in towns and cities must be prohibited from draining waste liquids into rivers before they are totally treated and purified. I feel if they violate relevant rules or laws, they should be fined heavily. Certainly, there are some other cures which are worth adopting.
水污染英文版课件
Water Quality Standards
01
Standard for fecal coliform
03
Standard for heavy metals
The concentration of heavy metals such as lead, cadmium, mercury, etc. should be very low to avoid toxic effects on human health and the environment
Municipal Waste Water Pollutio
01
Municipal waste water pollution is caused by the discharge of sewage and stormwater runoff from residential, commercial, and institutional sources
Sewage discharge
Municipal and industrial wastewater directly discharged into water bodies can cause pollution
Effects of Water Pollution on
Human health
02
Types of Water Pollution
Point Source Pollution源自010203
英语演讲稿-水污染_英文PPT
19%
南方 北方
人口: 53% population GDP: 56%53% 水资源:78% waterresource:78%
水资源
土地资源
Water is considered polluted if a substance or condition is present that renders the water useless for a particular purpose
1
Some data
water use& pollution what can we do
2
3
71% of earth’s surface is covered with water
Are the water sources abundant?
Low layer
0.3% of fresh water less than 3% Of total water
Water Issues in China
water resources per capita
• China water resource rank fourth in the world. • China isn't rich in water resources .
30000 (m3/yr/ca) 25000 20000 15000 10000 5000 0 China North china South China World USA Russia 2200 1047 3347 8800 11000 26600
World Water Day
(World Day for Water) • On March 22
• the United Nations General Assembly（联合 国大会） in 1993 • aim: to arouse public’s awareness of economizing water sources, and to protect it
水污染英语课上演讲文稿
PART4
Must severely punish the one who pollutes the environment
I believe that everyone could be shocked at the terrifying results brought in front of us by water
Direct drinking the pollution water
Fluorosis（氟中毒）
Cadmium poisoning（镉中 毒）
Lead poisoning （铅中毒）
Digestive system diseases
Stone
Cardiac and cerebral vascular sclerosis（心脑 血管硬化）
水污染英语课上演讲文稿
PART1
1.what is the problem we are facing now?
2.Is this water in your hometown clean?
In my mind, the water environment of my hometown is not as good as before, may be your hometown also faces the
I was shocked when I saw this data.It turned out that our country is also facing such a serious water
problem,water resources are so scarce, water pollution is also very serious.I want to say: when the water of life, the source of life is all dirty water, what can we drink?
水资源保护环境PPT英语课前演讲
time！！！ Turn off the water in time！！！
Maybe what we can do is only a little, but let us create an atmosphere of water conservation by just starting from the trifle deeds. And tomorrow will be a new world.
Drought conditions in parts of Yunnan was likely to get worse, according to the new report. well, what shall we do
We all college students commonly use water by public water room.
Therefore, water conservation can not wait anymore.
!!!
As a student , what are we able to do ?
When brushing our teeth, we can receive water with the cup, rather than constantly turn on the water. In addition, when taking a shower, we should also turn off the water in time, and avoid to have a long bath time.
WATER CONSERVATIOprevailing in Yunnan says extreme drought, the scope of the drought, the length of time, degree of loss, Yunnan, the people in Yunnan province water for water points history.
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PART2
What makes the water pollution
Hot water from the Power plant
Agricultural drainage
Livestock farm drainage
Mine drainage
industrial waste water
Urban domestic water
PART4
Must severely punish the one who pollutes the environment
I believe that everyone could be shocked at the terrifying results brought in front of us by water pollution which has long ignored by us.It is high time we take actions.
PART3
How water pollution affects our lives
Fluorosis（氟中毒）
Cadmium poisoning（镉中 毒）
Lead poisoning （铅中毒）
Digestive system diseases
Stone
Cardiac and cerebral vascular sclerosis（心脑 血管硬化）
Water pollution
The last drop of human, will be tears of remorse after environmental damage
PART1
1.what is the problem we are facing now? 2.Is this water in your hometown clean?
In my mind, the water environment of my hometown is not as good as before, may be your hometown also faces the same situation.
polluted 2011-2012 Groundwater in the residential area of the whole country
About 400cities
Groundwater accounts for water resources in China
Serious pollution
clean 118cities Rural population facing the threat of groundwater Light pollution Serious pollution
The proportion of national drinking Groundwater
I was shБайду номын сангаасcked when I saw this data.It turned out that our country is also facing such a serious water problem,water resources are so scarce, water pollution is also very serious.I want to say: when the water of life, the source of life is all dirty water, what can we drink?