关于水污染的英文演讲
什么不会问google,这些presentation问google最适合了。
千万别是baidu。
有关环保的英语演讲稿，3-5分钟左右
（1） With the improvement of our living standard, more and more people can afford a car. As a result, our roads are more often than not crammed with cars. However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. So nowadays we advocate to lead a low-carbon life. My suggestion is we should ride bikes more often instead of driving cars.By riding a bike, we can not only exercise our body but also protect our environment. Why not have a try, my dear friends? 与我们的生活水平的提高,越来越多的人都买得起汽车的。
因此,道路往往没有堆满了汽车。
然而,随着越来越多的废气排放是汽车、空气污染问题变得更加严重。
所以现在我们提倡过低碳的生活。
我的建议是我们应该更经常骑自行车而不是开车骑一辆自行车,我们不仅能锻炼身体,也能保护我们的环境。
为什么不试试,我亲爱的朋友?（2） Now, our side of the car constant more up, the environment also increasingly worse! That the air around us there are many harmful substances. Therefore, we want to Sue around things start to do. For example, we can go to school by bike or walk, it can exercise. If you have time can use less elevator, many climb stairs. We can not only physical exercise, but also to protect our environment. 现在，我们身边的汽车不断的多了起来，环境也越来越糟糕
以至于我们周围的空气有很多有害物质。
所以，我们要苏身边的小事做起。
比如，我们可以骑自行车上学或者步行，这样还可以锻炼身体。
有时间的话可以少用电梯，多爬楼梯。
我们不仅能锻炼身体,也能保护我们的环境。
（3）文章文体：议论文。
文章要点：1.保护环境的重要性；2.学生在家庭中节约能源的具体做法和感想；3.今后的打算。
文章框架：文章应该是三部分两段式。
第一段（包括要点前两部分）1.环保的重要性；2 接着是站在学生的角度谈谈家庭节约能源的具体方法，第二段写第三要点，即谈谈今后打算。
重要句型短语：It is important to protect our environment, the energy in the world is limited. turn off the light and other appliance when you ,re not using them, we'd better not waste the energy, use public transportation, recycle the waste，I can learn more to develop new and clear energy, like the energy from the wind and solar 等。
参考例文： With the development of our society, energy in the world becomes more and more limited, so it is quite important for us to save energy and to protect our environment. As a student, there are a lot of methods we can do to save energy at home. For example, first, we can turn off the light as well as other appliances when we are not using them. Second, recycle the waste water, paper and other waste so that we can reuse them. What's more, it is suggested to use public transportation more instead of private cars. Above all, everyone can make a great contribution to our environment. I hope I can learn more to develop new and clear energy, like energy from the wind and solar.（4）Recently we have held a class meeting to discuss what is considered to be honorable behavior and what is shameful. (最近我们班开了个班会讨论什么是光荣和耻辱。
)It is really a pity to see all this in our school.(很遗憾在学校看到这些现象)Some students don’t respect their teachers or parents. (不尊敬老是和父母)Some don’t take their studies seriously and cheat in exams. (作业不认真，考试作弊)Some throw wastes everywhere and pollute the environment . (到处乱扔垃圾污染环境。
)It is honorable to obey the law and rules , care much about our class and study hard.(关心班级、努力学习、遵纪守法是光荣)It is shameful to break school rules, to be selfish or to make little effort to achieve success.(违反学校纪律、自私 骄傲是可耻的)We should respect others and think more of them than of ourselves.(我们应该尊敬别人经常关心别人)We should work hard and make much more progress to repay the society.(我们应该努力学习取得更大进步从而回报社会。
)We should try our best to keep the environment clean。
(我们应该想方设法保持干净的环境。
) （5） There are still many problems of environmental protection in recent years. One of the most serious problems is the serious pollution of air, water and soil. the polluted air does great harm to people’s health. The polluted water causes diseases and death. What is more, vegetation had been greatly reduced with the rapid growth of modern cities.To protect the environment, governments of many countries have done a lot. Legislative steps have been introduced to control air pollution, to protect the forest and sea resources and to stop any environmental pollution. Therefore, governments are playing the most important role in the environmental protection today.In my opinion, to protect environment, the government must take even more concrete measures. First, it should let people fully realize the importance of environmental protection through education. Second, much more efforts should be made to put the population planning policy into practice, because more people means more people means more pollution. Finally, those who destroy the environment intentionally should be severely punished. We should let them know that destroying environment means destroying mankind themselves.保护环境目前环保还存在着许多问题。
最严重的问题就是空气、水和土壤的严重污染。
污染的空气对人类的健康十分有害。
污染的水引起疼病，造成死亡。
更有甚者，随着现代社会的迅速扩建，植被大大的减少。
为了保护环境，各国政府做了大量的工作。
采用了立法措施控制大气污染，保护森林资源和海洋资源，制止任何环境污染。
因此，在当今的环保中政府起着最重要的作用。
我的看法是，为了保护环境，政府应当采取更具体的措施。
首先，应当通过教育的方法使人们充分謒到环境保护的重要性。
第二，应更加努力把计划生育政策付诸实施，因为人口多就意味着污染严重。
最后，要严惩那些故意破坏环境者。
使他们破坏环境就是毁灭人类自己。
Hello: everyone!Now I want to talk about a beatiful world! When I was young,I always dreamed that I lived in a beautiful country. There were many flowers and trees around our city.We counld hear the birds singing and see the children dancing. The streets were clear and the the air was very fresh! How nice it was!But that only was a dream of mine!How I wish that it would be come true! So I think we should do something to protect our environment. Everyone should make a contribution to protect the environment. Taking care of our environment is very important.Where ever you live,you can do something around your neighbourhood. Have you ever thrown any litter onto the ground?Have you ever drawn pictures on public walls? Have you ever cut down trees?If your answers are No,it means that you have already helped protect our environment. It is our duty to keep our envionment clean and tidy. You might ask yourself,Have I ever picked up some rubbish and thrown it into a box?Have I ever collected waste paper or bottles for recycling?Have I ever planted any trees or flowers in or near my neighbourhood?If your answers areYes,it means that you have already done something useful to improve the environment. Now I want to say :Let`s do our best to make our world more beautiful!望采纳
急求一篇关于水资源的重要性的英文演讲稿，内容中慢慢延展到最近热门的干旱问题
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演讲多长时间
关于全球水资源短缺问题的英语演讲稿
With the development of society,Water is play an important in our life.We can live without food for 3 or 4 days.But if we don't have water for three or four days,we may die.So it is important to save water.But some people don't relize how important water is in our daily life.Many rivers and lakers are seriously polluted.If we wang to drink safe water,we have to protect our environment!手打的 暂时就想到这么多 你可以自己在想点
关于环境保护的英文演讲稿 一分钟
I'm worried about my country. There is polution everywhere. It's time to do something about it. We need fresh air to breathe. We need pure water to drink. We need a clean environment to be healthy. People have to stop littering. We have to respect our surroundings. We must become friends of the earth. First,everyone must get involved. Everyone must lend a hand. Together we can clean up our neiborhoods. Second,we can practice conservation. We can reduce waste and reuse things. We can recycle paper,bottles,and plastic. Third,we can put up more Don't litter signs. We can trashcans on every corner. We can pick up garbage when we see it. We must take action to fight pollution. It's our future we're protecting. It's our duty to keep our planet clean. So,please don't pollute. Don't be a litterbug. Don't be afraid to remind others,too. Let's protect nature's beauty. Let's make our future bright. Let's start to clean up now. 我担心我的国家。
有污染无处不在。
现在是时候做些事。
我们需要呼吸新鲜空气。
我们需要纯净水饮用。
我们需要一个干净的环境是健康的。
人民必须停止乱抛垃圾。
我们必须尊重我们的环境。
我们必须成为地球之友。
首先，每个人都必须参与进来。
每个人都必须伸出援手。
只要齐心协力，我们就能清理我们neiborhoods 。
其次，我们可以实践的养护。
我们可以减少废物及循环再用的东西。
我们可以回收纸，瓶和塑料。
第三，我们可以把更多的“不要乱抛垃圾”的迹象。
我们可以trashcans的每一个角落。
我们可以拿起垃圾，当我们看到它。
我们必须采取行动防治污染。
这是我们的未来我们保护。
这是我们的责任是让我们的星球干净。
所以，请不要污染。
不要成为litterbug 。
不要害怕，提醒其他人，太多。
让我们保护大自然的美景。
让我们使我们的未来光明的。
让我们先清理现在。
关于环境污染对身体有害的英语演讲稿
目前，全球荒漠化土地面积已经达到3600万平方公里，占陆地总面积的1／4，成为全球生态的“头号杀手”，而且每年仍以5万至7万平方公里的速度在扩展；全世界受荒漠化危害的国家达110多个，10亿人口受到直接威胁这意味着，地球上已有1／4的土地基本失去了人类生存的条件 森林锐减直接导致了全球六大生态危机。
一、绿洲沦为荒漠 目前，全球荒漠化土地面积已经达到3600万平方公里，占陆地总面积的1／4，成为全球生态的“头号杀手”，而且每年仍以5万至7万平方公里的速度在扩展；全世界受荒漠化危害的国家达110多个，10亿人口受到直接威胁。
这意味着，地球上已有1／4的土地基本失去了人类生存的条件。
二、水土大量流失 水土流失是森林破坏导致的最直接最严重的后果之一。
只要地表有1厘米厚的枯枝落叶层，就可以把地表径流减少到裸地的1／4以下，泥沙量减少到裸地的7％以下；林地土壤的渗透力更强，一般为每小时250毫米，超过了一般降水的强度。
一场暴雨，一般可被森林完全吸收。
由于森林的严重破坏，全球水土流失日益加剧。
目前，全世界有l／3的土地受到严重侵蚀，每年约有600多亿吨肥沃的表土流失，其中耕地土壤流失250多亿吨。
全球地力衰退和养分缺乏的耕地面积已达29．9亿公顷，占陆地总面积的23％。
三、干旱缺水严重 森林被誉为“绿色的海洋”、“看不见的绿色水库”。
据测定，每公顷森林可以涵蓄降水约1000立方米，l万公顷森林的蓄水量即相当于1000万立方米库容的水库。
由于森林锐减及水污染，造成了全球性的严重水荒。
目前，60％的大陆面积淡水资源不足，100多个国家严重缺水，其中缺水十分严重的国家达40多个，20多亿人饮用水紧缺。
预计今后30年内，全球约有2／3的人口处于缺水状况。
四、洪涝灾害频发 水灾与旱灾是一对“孪生子”。
破坏森林，必然导致无雨则旱，有雨则涝。
大量事实说明，森林有很强的截留降水、调节径流和减轻涝灾的功能。
森林凭借它庞大的林冠、深厚的枯枝落叶层和发达的根系，能够起到良好的调节降水的作用。
森林的防洪作用主要表现在两个方面：一是截留和蓄存雨水；二是防止江、河、湖、库淤积。
这两个作用削弱后，一遇暴雨必然洪水泛滥。
五、物种纷纷灭绝 科学家分析，一片森林面积减少10％，能继续在森林中生存的物种就将减少一半。
地球上有500万至5000万种生物，其中一半以上在森林中栖息繁衍。
由于全球森林的大量破坏，现有物种的灭绝速度是自然灭绝速度的1000倍。
联合国预测，1990—2000年每年可能失去了1．5万至5万个物种。
目前，地球上的物种已消失了25％，还有20％—30％存在灭绝的危险。
六、温室效应加剧 近代人类大量使用化石燃料，如石油、煤炭、天然气等，使得大气中二氧化碳的浓度在过去110多年里由270毫升／立方米上升到350毫升／立方米，到21世纪中期将达到600毫升／立方米。
而森林吸收二氧化碳并放出氧气，每公顷森林平均每生产10吨干物质，吸收16吨二氧化碳，释放12吨氧气。
从这六大生态危机可以看出，破坏森林的后果是极其严重的。
科学家们断言，假如森林从地球上消失，陆地90％的生物将灭绝；全球90％的淡水将白白流入大海；生物固氮将减少90％；生物放氧将减少60％；许多地区的风速将增加60％至80％；同时将伴生许多生态问题和生产问题，人类将无法生存。
目前，森林锐减导致的一系列生态危机，已经构成了对人类的严重威胁。
土地资源是三大地质资源（矿产资源、水资源、土地资源）之一，是人类生产活动最基本的资源和劳动对象。
人类对土地的利用程度反映了人类文明的发展，但同时也造成对土地资源的直接破坏，这主要表现为不合理垦植引起的水土流失、土地沙漠化、土地次生盐碱化及土壤污染等，而其中水 土流失尤为严重，乃当今世界面临的又一个严重危机。
据估计，世界耕地的表土流失量约为230亿水土流失是指在水流作用下，土壤被侵蚀、搬运和沉淀的整个过程。
在自然状态下，纯粹由自然因素引起的地表侵蚀过程非常缓慢，常与土壤形成过程处于相对平衡状态。
因此坡地还能保持完整。
这种侵蚀称为自然侵蚀，也称为地质侵蚀。
在人类活动影响下，特别是人类严重地破坏了坡地植被后，由自然因素引起的地表土壤破坏和土地物质的移动，流失过程加速，即发生水土流失。
水土流失是我国土地资源遭到破坏的最常见的地质灾害，其中以黄土高原地区最为严重。
我国目前水土流失总的情况是：点上有治理，面上有扩大，治理赶不上破坏。
全国水土流失面积解放初期为17.4亿亩,到1980年约治理6亿亩。
由于治理赶不上破坏，水土流失面积却扩大到22.5亿亩，约占国土总面积的1\\\/6，涉及近千个县。
全国山地丘陵区有坡耕地约4亿亩，其中修梯田约1亿亩，而另外3亿亩坡地正遭受水土流失的危害。
吨\\\/年。
土壤肥力下降，水土流失可使大量肥沃的表层土壤丧失。
据统计，我国每年流失土壤约50亿吨，损失N、P、K元素约4000多万吨。
水库淤积，河床抬高，通航能力降低，洪水泛滥成灾。
威胁工矿交通设施安全。
在高山深谷，水土流失常引起泥石流灾害，危及工矿交通设施安全。
恶化生态环境。
20世纪30～60年代，人们对于水土流失灾害的认识还停留在对土地造成直接经济损失方面，但在60年代以后，开始联系到人类整个环境所受的影响，包括沉淀物的污染，生态环境的恶化等。
水土流失是地表径流在坡地上运动造成的。
各项防治措施的基本原理是：减少坡面径流量，减缓径流速度，提高土壤吸水能力和坡面抗冲能力，并尽可能抬高侵蚀基准面。
在采取防治措施时，应从地表径流形成地段开始，沿径流运动路线，因地制宜，步步设防治理，实行预防和治理相结合，以预防为主；治坡与治沟相结合，以治坡为主；工程措施与生物措施相结合，以生物措施为主。
只有采取各种措施综合治理和集中治理， 持续治理，才能奏效。
3分钟英语演讲，关于环境污染的,求助高手
环境（Environment）Like all other living beings, humans have clearly changed their environment, but they have done so generally on a grander scale than have other species. Some of these changes-such as the destruction of the world's tropical rain forests to create grazing land for cattle or the drying up of almost three-quarters of the Aral Sea, once the world's fourth-largest freshwater lake, for irrigation purposes-have led to altered climate patterns, which in turn have changed the distribution of species of animals and plants.Scientists are working to understand the long-term consequences that human actions have on ecosystems, while environmentalists-professionals in various fields, as well as concerned citizens in the United States and other countries-are struggling to lessen the impact of human activity on the natural world.Population Growth（人口增长）Human population growth may be seen to be at the root of virtually all of the world's environmental problems. Increasingly large numbers of people are being added to the world every year. As the number of people increases, more pollution is generated, more habitats are destroyed, and more natural resources are used up. Even if new technological advances were able to cut in half the environmental impact that each person had, as soon as the world's population size doubled, the earth would be no better off than before.The Population Division of the United Nations predicts that the 5.63 billion humans alive in 1994 will increase to 6.23 billion in the year 2000, 8.47 billion in 2025, and 10.02 billion in 2050. The UN's estimate assumes that population will peak and stabilize at 11.6 billion in 2200.Although it is true that rates of population increase are now much slower in the developed world than in the developing world, it would be a mistake to assume that the population growth problem is primarily a problem of developing countries. In fact, because larger amounts of resources per person are used in the developed nations, each citizen from the developed world has a much greater environmental impact than does a citizen from a developing country.Evidence now exists suggesting that the most important factors necessary to lower population growth rates in the developing world are democracy and social justice. Studies show that population growth rates have fallen in areas where several social conditions have been met. In these areas, literacy rates have increased, and women are given economic status equal to that of men and thus are able to hold jobs and own property; also, birth control information is more widely available, and women are free to make their own reproductive decisions.Global Warming（全球变暖）Like the glass panes in a greenhouse, certain gases in the earth's atmosphere permit the sun's radiation to heat the earth but retard the escape into space of the infrared energy radiated back out by the earth. This process is referred to as the greenhouse effect. These gases, primarily carbon dioxide, methane, nitrous oxide, and water vapor, insulate the earth's surface, helping to maintain warm temperatures. If the concentration of these gases were higher, more heat would be trapped within the atmosphere, and worldwide temperatures would rise.Within the last century, the amount of carbon dioxide in the atmosphere has increased dramatically, largely because of the practice of burning fossil fuels-coal and petroleum and its derivatives. Atmospheric scientists have now concluded that at least half of that increase can be attributed to human activity, and they have predicted that unless dramatic action is taken, temperature will continue to rise by between 1° and 3.5° C over the next century. The consequences of such a modest increase in temperature may well be devastating. Sea levels will rise, completely inundating a number of low-lying island nations and flooding many coastal cities such as New York and Miami. Many plant and animal species will probably be driven into extinction, agricultural regions will be disrupted, and the frequency of severe hurricanes and droughts is likely to increase.Depletion of the ozone layer（臭氧层变薄）The ozone layer, a thin band in the stratosphere （a layer in the upper atmosphere）, serves to shield the earth from the sun's harmful ultraviolet rays. In the 1970s, scientists discovered that the layer was being attacked by chlorofluorocarbons （CFCs）, chemicals used in refrigeration, air-conditioning systems, cleaning solvents, and aerosol sprays.The consequences of the depletion of the ozone layer are dramatic. Increased ultraviolet radiation will lead to a growing number of skin cancers and cataracts and also reduce the ability of people's immune systems to respond to infection. Additionally, the growth rates of the world's oceanic plankton, the base of most marine food chains, will be negatively affected, perhaps leading to increased atmospheric carbon dioxide and thus to global warming.Predicting the rate of ozone depletion is difficult. Optimists claim that if international agreements for the phasing out of ozone-depleting chemicals agreed to in Montréal in 1987 are followed, ozone loss will peak in the year 2000. With many of the world's fastest growing countries in the process of industrializing and modernizing, there is reason to believe that destruction will continue to increase well beyond that year.Air pollution（空气污染）A significant portion of industry and transportation is based on the burning of fossil fuels, such as gasoline. As these fuels are burned, chemicals and particulate matter are released into the atmosphere. These chemicals interact with one another and with ultraviolet radiation in sunlight in various dangerous ways. Smog, usually found in urban areas with large numbers of automobiles, can cause serious health problems. Acid rain is a serious global problem because few species are capable of surviving in the face of such acidic conditions. Acid rain has made numerous lakes so acidic that they no longer support fish populations. Acid rain is also thought to be responsible for the decline of many forest ecosystems worldwide.Water pollution（水污染）Estimates suggest that nearly 1.5 billion people lack safe drinking water and that at least 5 million deaths per year can be attributed to waterborne diseases. Water pollution may come from point or nonpoint sources. Point sources discharge pollutants at specific locations-from, for example, factories, sewage treatment plants, or oil tankers. The technology exists for point sources of pollution to be monitored and regulated, although political factors may complicate matters. Nonpoint sources-runoff water containing pesticides and fertilizers from acres of agricultural land, for example-are much more difficult to control. Pollution arising from nonpoint sources accounts for a majority of the contaminants in streams and lakes.With almost 80 percent of the planet covered by oceans, people have long acted as if those bodies of water could serve as a limitless dumping ground for wastes. Raw sewage, garbage, and oil spills have begun to overwhelm the diluting capabilities of the oceans, and most coastal waters are now polluted. Beaches around the world are closed regularly, often because of high amounts of bacteria from sewage disposal, and marine wildlife is beginning to suffer.Groundwater pollution（地下水污染）Water that seeps through porous rocks and is stored beneath the ground is called groundwater. Although groundwater is a renewable resource, reserves are replenished relatively slowly. When groundwater is depleted in coastal regions, oceanic salt water commonly intrudes into freshwater supplies. Saltwater intrusion is threatening the drinking water of many areas along the Gulf and Atlantic coasts.The EPA has estimated that, on average, 25 percent of usable groundwater is contaminated, although in some areas as much as 75 percent is contaminated. Contamination arises from leaking underground storage tanks, poorly designed industrial waste ponds, and seepage from the deep-well injection of hazardous wastes into underground geologic formations. Because groundwater is recharged and flows so slowly, once polluted it will remain contaminated for extended periods.Habitat Destruction and Species Extinction（居住环境破坏与物种灭绝）It is difficult to estimate the rate at which humans are driving species extinct because scientists believe that only a small percentage of the earth's species have been described. What is clear is that species are dying out at an unprecedented rate; minimum estimates are at least 4000 species per year, although some scientists believe the number may be as high as 50,000 per year. The leading cause of extinction is habitat destruction, particularly of the world's richest ecosystems-tropical rain forests and coral reefs. At the current rate at which the world's rain forests are being cut down, they may completely disappear by the year 2030. If growing population size puts even more pressure on these habitats, they might well be destroyed sooner.This loss is critical from several perspectives. The economic value of species lost and of natural products and drugs that never will be discovered or produced is incalculable. Similarly, it is impossible to place either a moral or an aesthetic value on our growing list of extinct species. As habitats are destroyed and species lost, the world is increasingly losing threads from the interconnected fabric of life.Chemical Risks（化学成分污染）Pesticide residues on crops and mercury in fish are examples of toxic substances that may be encountered in daily life. Many industrially produced chemicals may cause cancer, birth defects, genetic mutations, or death. Although a growing list of chemicals has been found to pose serious health risks to humans, the vast majority of substances have never been fully tested.Environmental Racism（环境歧视）Studies have shown that not all individuals are equally exposed to pollution. Three of the five largest commercial hazardous waste landfills in America are in predominantly black or Hispanic neighborhoods, and three out of every five black and Hispanic Americans live in the vicinity of an uncontrolled toxic waste site. The fact that the wealth of a community is not nearly as good a predictor of hazardous-waste locations as is the ethnic background of the residents reinforces the conclusion that racism is involved in the selection of sites for hazardous-waste disposal.Environmental racism takes international forms as well. Dangerous chemicals banned in the United States often continue to be produced and shipped to developing countries. Additionally, the developed world has shipped large amounts of toxic waste to developing countries for less-than-safe disposal.Energy Production（能源问题）The world cannot continue to rely on the burning of fossil fuels for much of its industrial production and transportation. Fossil fuels are in limited supply; in addition, when burned they contribute to global warming, air pollution, and acid rain.Nuclear energy as an alternative is opposed by many because of the massive devastation an accident can cause. The accident at the Chernobyl' nuclear power plant in 1986 scattered radioactive contamination over a large part of Europe. Approximately 135,000 people were evacuated, and human health has been dramatically affected. The World Health Organization released a report in late 1995 attributing the explosive increase in childhood thyroid cancer in Belarus, Ukraine, and Russia directly to the accident.One reasonable solution is to combine conservation strategies with the increased use of solar energy. The price of solar energy relative to traditional fuels has been dropping steadily, and if environmental concerns were factored into the cost, solar power would already be significantly cheaper. Although it is desirable to have a wider range of energy options, other alternative sources of power （such as wind, geothermal, or hydroelectric） are not likely to provide large-scale solutions in the forseeable future.ConclusionGlobal environmental collapse is not inevitable. But the developed world must work with the developing world to ensure that new industrialized economies do not add to the world's environmental problems. Politicians must think of sustainable development rather than economic expansion. 帮你找了一些资料，仅供参考。
关于初中英语演讲怎样关爱自然的演讲稿及翻译
what is nature? its everything that exists in the world independently of people, such as pants and animals, earth and rocks, and the weather.now more and more people are focusing on the nature. it is no doubt that the nature is important to every human being. no nature, no life. because of the supplies of the nature, we have lived happily for a long time. and we started to gain every thing available from the nature. and this lasted so long a time. today, people have discovered that the nature around is getting worse and worse.what is threatening the nature? air and water pollution, overharvesting of plant and animal species, overpopulation and so on. overpopulation is the biggest source of pollution. lets take overpopulation as an example.what does overpopulation feel like? when we move slowly through the city in a tazi. when we enter a crowded slum district. when the temperature is high and when the air is thick with dust and smoke. the streets are crowded with people. the streets seem alive with people. people eating. people washing. people talking. people sleeping. people visiting each other, arguing and screaming. people relieving themselves. people pushing their hands through the taxi windows, begging. people leading animals. people, people, people, people. as we drive slowly through the crowd, sounding the taxis horn, the dust, heat, noise and cooking fires made it like a scene from hell! i admit, frightening.to the nature, overpopulation is a big problem. more people, more pollution. and the big population is threatening the nature every second.the rapid rise in world population is not creating problems only for the developing countries. the whole world faces the problem that raw materials are being used up at an increasing rate and food production can not keep up with the population increase. people in rich countries make the heaviest demands on the worlds resources, its food, fuel and land, and cause the most pollution. a baby born in the united states will use in his lifetime 30 times more of the worlds resources than a baby born in india. unless all the countries of the world take united action to deal with the population explosion there will be more and more people fighting for a share of less and less land, food and fuel, and the future will bring poverty, misery and war to us all.for most of the developing countries, it is a good idea to control the population growth. for example, china has carried out birth control for years. and this plan has a GREat effect on the world population.if the population continues to increase, if the air and water continue to be polluted, if we dont do something to protect wild-plant and wildlife species will be declining. species and biological communities have difficulty adapting to change. economic opportunities and the quality of life of future generations are also put at risk. by protecting nature, we protect ourselves.lets unite together, hand in hand we stand all across the land. we can make this world in which to live. hand in hand. control the population growth. take good care of our nature.xianxia high school什么是自然?世界上的一切存在独立的人,如裤子和动物,地球和岩石,天气。
现在越来越多的人关注自然。
毫无疑问,自然对每个人都很重要。
没有自然,没有生命。
因为供应的自然,我们幸福地生活了很长一段时间。
我们开始获得自然可以从每件事。
这持续了这么久的时间。
今天,人们已经发现,周围的自然是越来越糟了。
威胁的性质是什么?空气和水的污染,过度捕捞的植物和动物物种,人口过剩等等。
人口过剩是最大的污染来源。
让我们以人口过剩为例。
人口过剩是什么感觉?当我们在塔子缓慢穿过城市。
当我们进入一个拥挤的贫民窟。
当温度高时,空气中弥漫着灰尘和烟雾。
街道上挤满了人。
街上似乎挤满了人。
人们吃。
人洗。
人说话。
人睡觉。
人们互相拜访,争论和尖叫。
人们随地小便。
人们把他们的手在出租车的窗户,乞讨。
人们主要的动物。
人,人,人,人。
当我们开车慢慢穿过人群,敲响了出租车角、尘埃、热、噪声和灶火使它像一个来自地狱的场景!我承认,可怕。
自然,人口过剩是一个大问题。
更多的人,更多的污染。
和大人口正威胁着自然的每一秒。
世界人口的快速增长不仅产生问题的发展中国家。
整个世界面临的问题正在以越来越快的速度消耗原材料和食品生产不能跟上人口增长。
人在富裕国家做出世界上最重的需求资源,食物,燃料和土地,造成污染。
在美国出生的婴儿在他有生之年将使用30倍的世界资源在印度出生的婴儿。
除非世界上所有国家采取联合行动,以应对人口爆炸将会有越来越多的人争夺份额越来越少的土地,食物和燃料,和未来将贫穷、苦难和战争我们所有人。
对于大多数发展中国家来说,这是一个好主意来控制人口增长。
例如,中国多年来一直进行避孕。
这计划对世界人口有很大的影响。
如果人口继续增长,如果空气和水继续被污染,如果我们不做点什么来保护野生植物和野生动物物种将会下降。
物种和生物群落有困难适应变化。
经济机会和子孙后代的生活质量也将面临风险。
通过保护自然,保护我们自己。
可以团结在一起,我们手牵手站在土地。
我们可以让这个世界来生活。
手牵手。
控制人口增长。
照顾好我们的大自然。
长宁区仙霞高中
