老师们、同学们：你们好!
今天我演讲的题目是《让地球妈妈更美丽》。
曾记得在我幼儿时，妈妈给我描述过这样一幅画：蓝蓝的天上白云飘，白云下面马儿跑;高高的山，绿绿的草，清清的河水潺潺的流。生活在这里的人们互帮互助，亲如一家。多美的画呀!如今，每每忆起，我还是如痴如醉。现在，我已从无知幼儿成长为懵懂少年，我常去我的外婆家。外婆家在乡下，在外婆家门前有条清澈见底的小河。小的时候，我和伙伴们常在那里嬉戏、玩耍。一到夏天，一群群小蝌蚪就会在小河里自由自在地游来游去，享受这美好时光。可好景不长，近几年来那里建造了许多工厂，一些污水源源不断地排放入小河中，在加上一些家畜粪便和人们的生活垃圾不断排入，小河从此失去了它昔日的美丽。天气一热，河岸边河里的臭味常常招来一些蚊子、苍蝇到处飞，让生活在周围的人们苦不堪言。
这都是怎么造成的呢?是人们的行为不文明，不爱护环境造成的。如果人们多动一动手，多弯一弯腰，多捡一捡垃圾，一起来爱护我们的地球妈妈就不会造成这样。
再举个例子给你们听听。有一次我和妈妈去上街，在路上走着走着。突然“砰”的一声，我转头一看，原来是两辆自行车相对而行时，不知怎么的碰撞在一起，也不知谁对谁错，只见那个年纪稍大点的中年人，从地上爬起来后，赶紧对另外一人说：“对不起，对不起，是我骑的快了点!”那个年纪轻些的人从地上爬起来后，一脸怒冲冲，刚想开口骂人，听到对方这样一说，反而有点不好意思，故作没事似的说：“没关系，没关系，你下次骑车小心点!”一场剑拔弩弓的“战争”就在双方的谅解中烟消云散了。
你们看，就是因为双方的文明言语，化解了人与人间的矛盾。再回首我们身边，一批文明小天使已活跃在校园内外。马路上，小英劝妈妈不能闯红灯;公园里，童童劝阿姨不要随地吐痰;酒桌上，小杰让爸爸少喝酒，不吸烟;教室里，红领巾们弯下腰，低着头，在为环境的保洁而出力……
最让我记忆犹新的是：那是去年暑假，我与妹妹正在做小制作。妹妹把一些废纸往窗外扔，废纸随着风飘到地上。我急忙说：“不要扔了，地球妈妈会哭的。”“不用你管，我就扔!”任性的妹妹撅着嘴说。“如果每个人都这样，这世界一定脏不堪言!”“现在科学那么发达，有扫路车，怕什么?”妹妹振振有词地说。“怕地球给我们报应!你看，去年闹‘禽流感’、20xx年闹‘非典’，这都是地球给我们的报应……”听了我的这些话，妹妹低下了头说：“我这就去捡。”从此，妹妹不仅自己不乱丢垃圾，还叫别人不要乱丢垃圾。是啊!从小事做起，爱护我们的大家园吧!让文明时时伴随着我们的言行，让文明之花常开不败!同学们，行动起来吧，用我们的文明行为，让这里的天更蓝，水更清，人更美!让地球妈妈更美丽!
尊敬的评委老师，亲爱的同学们：
大家好!
当我踏上陵水这块神奇的土地时，望着湛蓝湛蓝的天空，看着碧蓝碧蓝的海水，抚摸翠绿翠绿的树木，吸着清新诱人的空气，我几乎要陶醉了，这不就是我梦中的人间仙境吗?这不就是生态环境的建设的典范吗?这不就是我们每一个中国人绿色梦的实现吗?今天的我们在令人心醉的海南聚集，在风景如画的陵水演讲，可是我们不得不承认，全球环境恶化早已成为不争的事实，地球的容颜在日益衰老，中国各个地区的PM2.5指数飙升仿佛成了不可逆转的态势。
面对这样的情状，我们究竟应该做些什么，我们究竟可以做些什么，我们究竟要拿什么来挽救我们唯一的家园——地球?
在六十一年前，伦敦，曾经是一座名副其实的雾都。1952年12月5日开始的那场为期四天的浓雾，造成了1.2万人死亡，是和平时期的伦敦遭受的最大灾难。可今天的伦敦，是一座真正的“绿色花园之城”。城区三分之一被森林、花园和公共绿化所覆盖，拥有100个社区花园、14个城市农场、80公里长的运河和50多个长满各种花草的自然保护区。六十一年间，伦敦政府推出交通拥堵费，发展公共交通网络，对高排放高污染的企业征收高额排污税和环境税……伦敦人不懈努力，只为了与雾开战，只为了还自己和脚下这片土地一片纯净的天空。
三年前，在哥本哈根当地时间20xx年12月17日晚，著名演员李冰冰与丹麦著名男演员Ken共同主持了“地球一小时哥本哈根之夜”活动。李冰冰被誉为“中国最美丽的环保名片”，她在环保上面很注意细节，比如住酒店自带牙刷、拖鞋等等。她认为，环保就是积累变绿的过程;我们的行动，就是我们的选择。她相信每个小行动的集合，意味着保护环境家园的大跨越。
同样也是三年前，在清华大学新生演讲比赛上，一个来自环境系的学长站在决赛的舞台中央，从自己的口袋里掏出了一个塑料小袋，又从塑料小袋里拿出了一支学校食堂随处可见的塑料餐勺，告诉同学们这个餐勺他已经连续使用了12天。他说，出于一个环境学人的责任，为了减少一次性塑料餐具的使用，他要从一点一滴做起。
今天，我们站在这片土地上，你可知道这片享誉“珍珠海岸”之称的土地如何实现了属于它的绿色跨越?20××年，它曾经是国家重点扶持的贫困县。可是绿色，没错，就是这海洋的绿色，这藤架的绿色，让它实现了完美的“蝶变”。不仅经济发展了，人民生活改善了，环境也变得愈发美好了，人们的脸上都洋溢着那充满绿色与生机的喜悦。
所以，朋友们，在我们为环境的恶劣所困扰的时候，在我们渴望绿色渴望美丽家园的时候，我们要给地球一个承诺，我们要用行动让中国回归绿色。从伦敦政府到著名的演员，从著名的演员到普通的农民，从普通的农民到还未进入社会的大学生，从昨天的陵水到陵水的今天，他们用自己的行动为呵护美好家园作出了最完美的诠释。我们也可以。
朋友啊朋友，你可千万不要忧愁，你说生活充满雾霾，因为你心中没有绿洲。
先做一个绿色的梦吧，才会有一个蔚蓝的地球。
朋友啊朋友，你可千万不要忧愁，你说家园已不再美丽，因为你迟迟没有行动。
敬爱的老师，亲爱的同学：
大家好! 我叫。
今天，我为大家演讲的题目是——“保护环境，为家园的美丽而奋斗!”大家还清楚地记得20xx年的夏天，一场突如其来的“太湖蓝藻爆发”， 一下子使太湖水臭气熏天，这正是人们在无节制地往太湖中扔垃圾、塑料袋、易拉罐污染造成的。这难闻的味道使所有的人都无法忍受，这次“蓝藻爆发”给人们的生活带来了巨大的灾难。超市的矿泉水以一抢而空，旅游业一落千丈。人民政府也为此行动了起来，与各个国家说明，找专家一起想办法。
但是，这些都是我们自己在自作自受呀!就是因为我们的环保意识不强而造成的，才会使太湖中的蓝藻爆发，影响到生活，真正的“幕后黑手”难道不是我们? 环境是每一个城市的素质，保护环境更是每个人应该有的素质。一个个城市的环境就是靠一个个保护环境的人来创造的，要把受过污染的城市变成干净的城市。这是一种保护环境的美德! 因此，我向大家号召：不要随便乱扔垃圾，要弯弯腰，作一个环保的好市民;也要向自己的亲友、同事等等互相提醒“环保的重要，走到哪儿都要注意环保”……
请注意我们的口号：保护环境，从我做起!我们一定要把口号记在心头，把口号当做自己的生命来行动，来宣传。
用自己的实际行动来为自己的家园，自己的祖国的美丽出一份力吧! 我的演讲完了，谢谢大家!
In recent years there has been a marked growth of fire accidents in big cities of our country. Almost every day we see fire engines rushing through the streets. Fires have not only resulted in heavy economic losses but also injured and killed many people.
What are the causes of fire accidents? Most of the fires are brought about by carelessness and violation of fire safety regulations. Others are due to the poor quality of home electrical appliances. By the way, some people don't know how to use them properly. Besides,there are quite a few businesses which focus so much of their attention on profits that they tend to neglect and even ignore fire precautions.
In my opinion, in order to prevent fires we should first of all foster people's sense of fire prevention. The second thing we have to do is to increase the number of professional fire fighters, to whom regular training courses should be offered. Finally, we are to improve the existing fire engines and add more fire facilities to high-rise buildings. In this way, a reliable fire prevention system will be formed.
Air pollution is one of the major problems of the modern world. A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too. Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution. Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities. They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material. Also, engineers try to design and locate new power plants to do minimum damage to the environment. However, it may be that we still have a long way to go before we have a "clean" world. Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do. People will continually find new ways to control pollution.
尊敬的老师们，亲爱的同学们：
大家好!我演讲的题目是“保护地球母亲，净化校园环境”
同学们，地球是人类的共同家园。然而，随着社会的发展，人类的地理环境持续恶化。面对日益恶化的地球环境，我们都有义务，用自己的实际行动来保护我们的生存家园。我们要有保护环境的时代责任感。虽然我们还是学生，但是，我们可以从身边小事做起，从爱护学校环境做起。“心系全球，着眼身边，立足校园”是对大家的基本要求。
同学们，我们学校一直以来就非常重视校园环境的建设，为的是给大家在优美的校园里舒心地学习和生活。你看，在这春意盎然，风景如画的校园里，我们学习和生活是多么的幸福啊!享受着美好校园环境的权利是我们，当然，保护美好校园环境的责任也应该是我们。权利和义务是统一的，只有人人爱护环境，才能实现共同分享幸福与快乐。
同学们，在4月22日“世界地球日”来临之际，我特别发出倡议：“用自己的实际行动保护环境，让绿色生命来激发我们对生活、对学习的热爱!”面对校园中一个个不和谐的镜头，我们应该作一番认真的思考：我们应该做什么?我们不应该做什么?我们能够做些什么?
眼前的问题是，我们是不是停留在要等到丢了垃圾再去被动地打扫?我认为，“先丢后扫”不是给自己添麻烦吗?这种做法既影响了校园环境卫生，也浪费了宝贵的学习时间。如果大家增强环境保护的意识，人人养成把废物放到垃圾桶的良好习惯，就可以大大减轻打扫卫生的压力。
古人曾经说过，“勿以善小而不为，勿以恶小而为之”。我们应该从小养成良好的卫生习惯。
一片纸，我们捡起;一堆垃圾，我们打扫;一株花木，我们珍惜;一棵小草，我们爱护。请大家多弯弯腰，捡捡果皮纸屑，多走走几步，爱护绿色生命。从一点一滴的环保行为做起，
拯救一片绿色，留住一片美丽，平凡之中见精神，细微之处显文明。爱校如家，保护环境，人人有责。
让我们积极行动起来，从你我做起，从小事做起，从身边做起，从现在做起。以实际行动来爱护我们美丽的校园吧!
各位同学们：
听奶奶说，儿时的她常常穿梭于青山绿水之间。山，矗立在面前，草木郁郁葱葱，山花簇簇。绵绵细雨唤起满山云雾，山峰在袅袅云烟中若隐若现，更显得雄伟险峻，让人觉得它神秘而美丽。可是现在呈现在我们眼前的山早已失去梦幻之感，因为：漫山遍野都是垃圾，树枝上挂着丑陋不堪的塑料袋，草丛里随处是晃眼的白色饭盒。人类不断地砍伐树木，破坏生态环境，再也无法与自然和谐相处。现在的我们是：同弃废弃物，同饮垃圾水。
为了保护地球母亲赐予我们的宝贵的自然环境，我发出倡议如下：
1.停止对森林的滥砍滥伐，积极开展植树造林活动;
2.不随便丢弃垃圾，自觉将垃圾带出自然景区。大家互相监督，一旦发现有乱扔垃圾的人，立即上前制止;
3.努力学习，多读有关自然的书，了解自然，了解环境与人类的关系;
4.减少排放有害气体。尽量少烧秸秆、塑料等物体，避免其燃烧产物对自然地破坏。
让我们向美好的环境宣誓：从我做起，积极践行;植绿护绿，保护生态;节约用水，杜绝污染;为保护环境奉献青春!
We live in the world every day. We eat food, drink water, wear clothes, watch TV, use computers and so on. We are producing waste every moment.
Generally speaking, there are four sorts of waste. They are material waste, organic waste, inorganic waste and poisonous & harmful waste. Now, we are going to talk about each sort of waste one by one.
Material waste: it means the waste of substance or things from which something else can be made. For example, people throw away the used metal products and buy a new one, so the old metal waste accumulates. At last, they become waste. For example, when people finish reading newspaper, the paper will become waste. When the glass is broken, it also becomes waste. Nobody wants to use a broken window or drink with a broken glass or wear a pair of broken glasses. Once it is broken, it becomes waste. The rate of using plastics is increasing day by day. People use plastic bags because they are convenient. When they get home, they throw the plastics way, paying no attention to the environment. The more convenience plastics brings to us, the more plastic waste is produced. This is called “white pollution” as most plastics are white. Some of our products we use every day are made of rubber, just like the tyres and the bottom part of our shoes. It’s true that rubber plays an important role in our life. However, it also brings us some trouble when it has been used for a long time and becomes old. The old tyres become waste because it can’t break down by nature. This is really a big problem.
protect the environment.
Good environment can make people feel happy and fit . To improve the environment means to improve our life.
We should plant more trees and flowers around us . We shouldn’t cut them down . We should stop factories from pouring waste water into the river and waste gas into the air.
Whenever we see litter on the ground , we should pick it up and throw it into dusbins. Never spit in public. Don’t draw on public walls. It’s our duty to protect the environment.
Stepping into the new century environment pollution has become more serious than ever since. There are different kinds of pollution. Such as water pollution air pollution and noise pollution and so on. It seems that we live on a planet which is full of pollution. where all these pollution comes from? To a large extend the environmental destruction is the heavy price that we pay for the rapid development of economy and the growing population. In order to have more fuel people cut down trees and dig more corals. But the growing needs for energy are hardly to meet. Countless private cars on the street the gas stations are short of gasoline even the government has raise the price so many times in order to control the needs of gasoline but it’s still not working. Overusing the natural resources has already affected the ecological balance. However the factories still release the toxic air into the sky and the polluted water into the rivers. People still lack of the conscious of protecting the environment. I think it’s time for all of us to do something.
The government should put forward some more strict laws to prevent the environment from being further polluted. And they should let people know more about the importance of environment protection. And we should find the balance between the economic growth and environmental protection. Plant more trees in the deserts and stop cutting down the forest. Forbid the factories to pour the waste water into the rivers directly. Encourage people to use public transportations to work. Both government and ordinary people should join hands together to make our home clean and fresh again. Only in this way our earth could be a better place to live in.
Ladies and gentlemen,
I am honored to stand here to share with you on such a important subject as climate change.Yes ,it is global warming .
Let me give you two phenomenons.
Here is the first one. More and more people used to be using air condition ，but how many people ever thought whether this new ,hobby will bring side-effects or not? Maybe just few people. In fact, the side-effect is apparent. The emissions of gases exhausted from air conditioning contain a lot of methane .which could cause global warming. By the way, air conditioning will waste a lot of electricity .
The second one is about the increasing amount of cars. According to the statistics, in 21st century, there are 7 millions cars in the world, a large amount of exhaust gases has seriously influenced us, such as: cough, throat inflammation.
This two phenomenons are just few part of reason which change our environment badly. There are many other reasons.
In nearly 100 years, the average global temperature experienced twice fluctuations which is “cold-warm-cold-warm”. Generally, it is the trend that global climate is becoming warmer and warmer . In 1980s,global temperature rised apparently. According to Chinese scientists, the average temperature in China has risen by 1.1 degrees
老师、同学们：
昨天，4月22日是我们的世界地球日，说起地球，大家可熟悉了，因为它是我们人类共同的家园。
很久很久以前，我们的地球是非常美丽的，可是现在地球的环境却不断地被破坏。世界范围内的滥伐森林，破坏草原，无节制地占用农田和抽取地下水，对矿产资源的乱采滥用等造成全球性的气候恶化：土地沙化、地面下沉耕地减少、淡水资源缺乏等等，已经严重地威胁着人类的生存和发展。人类在生产和生活中的废弃物不加任何处理和限制就排入到环境中，造成大气、土壤、水体、生物的严重污染。人类在享受现代文明的同时也在品尝环境日益恶化的苦果。
为了保护我们的环境，我要告诉大家：“保护环境，从我做起，从小事做起”。今天我就告诉大家几个保护环境的金点子：
1、节约用纸金点子
木材是造纸的主要原料，浪费纸张就等于砍伐森林。珍惜纸张就是在珍惜我们的森林资源。我们可以将旧练习本中未用完的纸张装订起来，做草稿本;把草稿纸写满，不要只写几个数字就扔掉。过期的挂历可以包书皮;废报纸可以用来练习写毛笔字和画国画;有些包装纸，可以做成手工艺品，美化生活。无论是手纸还是餐巾纸，能用手帕代替的就用手帕代替。
2、节约用水金点子
可以把用过的但相对比较干净的水冲马桶、擦地板或者浇花。用水间歇可以把水龙头关上，避免不必要的浪费。少量的衣服可以用手洗，避免洗衣机洗时使用大量的水。洗澡时，将开头空放的冷水积蓄起来，可以洗衣服或别的用场。家中安装节水水龙头，使用节水马桶。
3、节约用电金点子
在家或在教室，没人或没必要的时候，不开灯、不使用空调;离开房间后随手关灯。同一个房间，在采光良好的情况下，不用开两盏灯。上体育课或不在教室上课时，要关好教室电灯、风扇、电脑等;
4、节约其他能源金点子
少用塑料袋塑料是石油产品，不易分解，埋入土壤中十几年不腐烂。任意处置会造成土壤、河流污染，世界各国正在开展“使用纸口袋”和“可降解塑料袋”的运动。以环保为重，商场少供应塑料袋，顾客自带购物袋，就可以减少塑料垃圾。超市里的塑料袋可以当垃圾袋二度使用。
能坐公交车上下学的，就不用专车接送。去很近的地方办事，就步行或骑自行车去。既环保又锻炼身体。同学们，这些环保金点子，你们喜欢吗?我建议：在班级中开展“节约一滴水、一度电、一张纸，不践踏草坪，不乱扔垃圾，不随地吐痰”等活动。我们可以从身边环保小事做起，从校园做起，以环保公德规范自己的行为。当你扔出瓜皮果壳的时候，请你多走几步路，把它放入垃圾桶;当你走路看见地上纸张的时候，请你弯弯腰，将它捡起来;当你正想随地吐痰时，请你想一想他人的健康，用纸将痰包起扔到垃圾桶……
同学们，为了我们健康活泼地成长，让我们携起手来，从我做起，从小事做起，共同创造一个美好的生活环境。相信我们的校园会更美，我们的家园——地球会水更清、天更蓝。
protect the environment?
Nowadays, more and more people realize it`s necessary and important to protect the environment. Also,there are some people who don`t pay attention to hygiene and they can`t stop littering the rubbish casually or spitting everywhere all the time.And in addition, there are a few factories often cutting down the trees, discharging chemicals and dirty water and so on.And it causes many problems like the Greenhouse Effect.If they do these day by day and our life will be harder and harder,so we have to stop them. To stop them we can put up commonweal advertisements and tell them the detriment of destroying the environment.So we can start from now to make a beautiful life.
The quality of human life has improved greatly over the past few centuries, but Earth is being harmed more and more by human activity. As we develop our technology, we demand more from our planet. Eventually, this will harm people as well.
Our planet gives us everything we need, but natural resources are not endless. Strip mining devastates whole regions, leaving bare and useless ground. Deforestation removes old growth trees that can't be replaced. Too much fishing may harm fish populations to the point where they can't recover. We are too careless in taking what we want without giving anything back.
There are more people than ever, living longer that ever. So is it any surprise that many areas suffer from too much development? Anyone living in or near a city has experienced "urban sprawl". There is a new shopping area on every corner and new houses, townhouses and apartments everywhere. Traffic gets worse and worse because planners can't keep up with growth. Keeping up with human demand is hard enough. Environmental concerns come in last.
With growth comes pollution. Companies and communities dump waste into water. Landfills are full of trash. Emissions from factories pollute the air. Barrels of industrial waste and worse, radioactive waste, have no safe place to go. If we're not careful, we can harm our planet beyond repair.
People need to respect the Earth and try to preserve it. If we don't, what kind of future will we have?