关于海洋污染的英语演讲稿~
急急急急~
Pollution in the ocean is a major problem that is affecting the ocean and the rest of the Earth, too. Pollution in the ocean directly affects ocean organisms and indirectly affects human health and resources. Oil spills, toxic wastes, and dumping of other harmful materials are all major sources of pollution in the ocean. People should learn more about these because if people know more about pollution in the ocean, then they will know more about how to stop pollution.What are toxic wastes?Toxic wastes are poisonous materials that are being dumped into the ocean. They harm many plants and animals in the ocean and have a huge impact on our health. Toxic waste is the most harmful form of pollution to sea life and humans. When toxic waste harms an organism, it can quickly be passed along the food chain and may eventually end up being our seafood. In the food chain, one toxic organism gets eaten by another, larger animal, which gets eaten by another animal, and can end up being our seafood. Toxic waste gets into seas and oceans by the leaking of landfills, dumps, mines, and farms. Farm chemicals and heavy metals from factories can have a very harmful effect on marine life and humans.Many fishermen believe that the toxic chemicals in the ocean are killing much of the fish population. One of the most harmful chemicals in the ocean is lead. Lead can cause many health problems. It can damage the brain, kidneys, and reproductive system. Lead can also cause birth defects for people. It has been shown to cause low IQ scores, slow growth, and hearing problems for small children. House and car paint and manufacturing lead batteries, fishing lures, certain parts of bullets, some ceramic ware, water pipes, and fixtures all give off lead.Many things found in the ocean may cause seafood to be dangerous to human health. The effect on humans from contaminated seafood may include birth defects and nervous system damage. Medical waste found in the ocean is being tested to see if swimmers have a chance of developing Hepatitis or AIDS. Other waste has been known to cause viral and bacterial diseases. This type of pollution can be stopped by watching what pollution we are letting into the ocean. People are trying to decrease the amount of waste in the oceans by recycling as much garbage as they can so there is a smaller amount of very harmful materials in the ocean.Boating Pollution Prevention TipsWhenever someone takes their boat onto the water for a ride, it is creating pollution that can be very harmful to the sea life. Boating pollution is the pollution that comes from the boat’s engine when it is running, and it pollutes the water, killing animals with the chemicals in the exhaust from the engine. The engine gives off excess gasoline, which pollutes the waters and ends up killing the animals. In order to make as little pollution as possible, what everyone can do to help is: Only turn a boat engine on all the way when you need to. Don’t take your boat out into the water if you don’t need to. Be sure to store and transport gasoline in places where there isn’t any direct sunlight because the gasoline will evaporate, and all of the gases that have been evaporated will pollute the air. Every year, buy new or cleaner marine engines for your boats.Garbage DumpingGarbage dumping is the dumping of harmful materials into the ocean like human waste, ground-up garbage, water from bathing, and plastics. Most of the waste that has been dumped into the ocean in the early 1990’s is still there today. One main cause of garbage dumping occurs when sewage pipes share their space with storm water drains. Rainfall causes the sewage pipes to overflow and the sewage waste mixes with the storm water drain, which flows into another water source such as a lake or river. After that, the garbage pollutes the ocean, kills plants and animals in the water (for example, the plastic rings that are around pop cans can get around an animal’s neck, causing it to suffocate), and makes the water dirty.
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
保护海洋动物演讲稿
一场特殊的宣判 在地球刚刚形成时,最先见到是那蔚蓝的大海,生命在此繁殖,不停的演变。
一切都那么井然有序。
成群结队的鱼,五彩斑斓的珊瑚,一切都是那么的美好,鱼儿快乐的游就像一个个跳动的音符。
大海就是无与伦比的五线谱。
那无边无尽的汪洋大海是曾今所养育我们的摇篮,大海是地球的母亲,是生命的起源。
里面有取之不尽用之不完的石油,为人类提供了宝贵的资源。
为人类体供鲜美无比的海鲜……海里有珊瑚礁,有鲨鱼群,有企鹅,有世界上最大的动物—蓝鲸。
以前海洋是湛蓝湛蓝的。
可现在海洋不在蓝了开始变黑了,开始变浑浊了。
大海妈妈开始生气了,它渐渐的感到后悔,她亲手造就了一班来决定让它变得越来越黑,越来越浑浊的人类。
使至今在它怀抱里的宝宝一个个离她远去。
比如蓝鲸,根据资料的显示,近年来不知道多少蓝鲸遭受人类的戳杀。
为什么呢
就因为人类的贪婪金钱的欲望,人类的残暴。
让无辜的蓝鲸遭受如此巨大危险。
捕鱼是可以进行的,人需要营养所以大海妈妈将自己的乳汁给了我们。
它那些充满着营养的乳汁开始传到世界各地,每天都可以看见新鲜的鱼从港口运来。
大海妈妈看到自己的孩子得到了营养心里欣慰,但人类却恩将仇报,使海洋受到污染,使海洋里的生物难以生存。
现在的人为了金钱甚至会不惜代价。
一些捕鱼的人开始滥捕,许多鱼在市场卖不出去。
便被人们扔进了垃圾桶。
此时,大海妈妈在那里不停的哭泣。
而人类却一点也没体会到大海妈妈的伤心,不会设身处地的为大妈妈着想。
现在地球环境越来越差,人们开始不段排放有毒污水,让海里的鱼逐渐面临死亡。
这种鱼一但被人类吃了,后果不堪设想。
真是聪明反被聪明误,自食其果。
垃圾越来越多,似乎人类把大海妈妈当作了世界上最大的垃圾桶。
越来越多的垃圾沉积在海底,使大海妈妈越来越脏越来越黑。
大海妈妈能不再一次伤心吗
在钱塘江每年都有壮观的潮水,使得世界各地的人前来观看。
可近年来似乎跟以往有所不同变得严重了,那可能是大海妈妈对人类的所作所为感到伤心。
开始落下一滴又一滴的眼泪。
大海妈妈的伤心和生气原自哪里呢
原自人类,只要人人做好环境保护让更多的垃圾进垃圾它自己的家—垃圾桶。
不要为了金钱损人利己,让大海妈妈再一次展现它柔美、发自内心的微笑吧
让大海妈妈觉得人类值得让大海妈妈骄傲。
让大海妈妈觉得人类在好好的孝顺它。
人类是爱它的。
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。
求大学生英语演讲稿,主题是:资源节约与环境保护
看着鸟儿在天空,看着鱼儿在水中遨游.也许你为世界上的动多吧!但你知道,现在的动物不仅不多,而且有的动物已经很稀少,甚至某些动物已经灭绝.根据生物学家估计,几千年来被人类捕杀以致绝种的动物至少有数百种以上.如此一来,那世界上的动物种类越来越少,如果我们不能够及时挽救的话,那么将来世界上的动物就只有我们人类自己了!你别以为我是“危言耸听”,你若不信,我可以告诉你. 就拿印度洋毛里求斯群岛上生活的渡渡鸟来说,由于它身上的肉鲜美无比,所以遭到当时人类的大量捕食,在十七世纪就已告灭绝.但是如果当时人们有动物保护意识的话,就不会造成渡渡鸟的灭绝.再说生活在我国青藏高原的藏羚羊吧,因为它其外层皮毛下面的被称作沙图什的绒毛异常精细,可以用来织成华丽的披肩,而惨遭偷猎者大肆捕杀.因为织出一条女式沙图什披肩便需要300至400克生绒,这意味着要牺牲3只藏羚羊的生命.所以在上世纪90年代初期,藏羚羊的数目只有65000只到72500只之间,要知道这只有100年前藏羚羊总数的十分之一.所幸的是人们意识到了保护这种濒临灭绝的动物.现在北京已有多名志愿者来到可可西里担当起义务看护藏羚羊的活动.同时国际爱护动物基金会从1999年起每年为我国藏羚羊保护捐赠8万至10万美金用以在可可西里、羌塘和阿尔金山三大自然保护区开展反盗猎行动和针对藏羚羊保护的各种宣传活动.我们人类正慢慢将藏羚羊这种可爱的动物从灭绝的边缘拉回来. 朋友们,动物是大自然留给人类的无价之宝,它是我们人类的朋友.它们的生衍死灭与我们人类的生活是密切相关的.动物的大量毁灭对人类将产生严重的不良后果,造成生态严重不平衡,从而使人类的生存环境遭到破坏.让我们从现在做起,从我做起,保护动物,使世界变得更美好吧! 贪欲消灭人类 程啸 白鳍豚原是长江的龙头老大,居于长江水生生物食物链的顶端长达2500万年,在漫长的水域里所向披靡,但是它们最终灭绝了.上世纪80年代初种群数量为400头左右;1986年,300头;1990年,200头;1994年,100头以下;1997年,13头;1999年,5头;2006年,生命之旗已经降落.这位长江的原始主人无声无息地消失了,在一个不为人知的时刻,完成了最后的挣扎,把最后一滴眼泪汇入了奔腾不息的万古长江.这可怕的灾难只有可能来自——人类. 上帝派了个天才来向人类透露它的绝密消息,那个叫做霍金的天才歪歪斜斜地坐在轮椅上,口齿不清地说:最后的日子,就在下个世纪. 霍金说的很对,人类末日不再遥远. 是什么导致人类的灭绝呢? 是欲望!是的,人类贪婪的欲望导致了动物的灭绝,导致了地球的变异,导致了灾难的产生,最终,贪欲将灭绝人类自己. 香格里拉人是外星人遗留在地球上的高智能物种,是他们创造了人类,并且进行了一次清除.东方佛经里所记载的乐园叫香巴拉,西方传说的乐园叫伊甸园.伊甸园中的一对男女最终被欲望驱使而犯错被驱逐出了乐园.香格里拉人制造了人类,但是人类被欲望驱使,最终繁殖过多,被香格里拉人惩罚,将人类所在的大陆沉入水底.西方人说是挪亚方舟拯救了人类,其实,那只是人类为了躲避洪灾而逃到神圣的地球最高峰——喜马拉亚山.据说进入香格里拉世界的通道在布达拉宫的底部,但是,很少有人进入.神圣的香格里拉已经抛弃了人类,这是因为,人类有贪婪的欲望,而这欲望,和传说一样,会导致人类的灭绝,而毁灭人类的工具就是——洪水. 贪婪的欲望本身就是洪水猛兽,最终,洪水猛兽将吞噬人类,吞噬人类的欲望. 你可曾发现?在局部范围,洪水越来越猛烈,不管人类科技如何进步,也无法抵抗?你可曾发现?海啸越来越猛烈,可以瞬间吞噬无数岛屿?你可曾发现?台风越来越猛烈?可以将一切都拦腰折断?你可曾发现?冬天变的如此短暂,气温升的如此快速?你可曾知道?喜马拉雅山的冰川正在融化,北极冰雪将在本世纪内消失,纽约、东京等城市将被上升的海水淹没. 还有更多你所不知道的,那深沉的海底,隐藏着太多史前的古生物,当海水逐渐上升,当城市逐渐被淹没,人类,都将成为海底猛兽的快餐. 人类的末期啊,已近在眼前.是欲望,是贪婪的欲望,最终消灭了人类自己! 地球满足不了人类的贪婪