Tiger is one of the most valueable animals to human beings today. It is somehow like a cat, but much bigger than it. It lives in the forest, and feeds on small animals.
Nowadays, the number of the wild tiger is becoming small and small. Maybe there will be no tiger any more if people continue cutting the trees, destorying the living environment or hunt the tiger just for the skin. We must stop all these mistakes. We should protect them, because the world without tiger is not a completed one.
Tiger is one of the most valueable animals to human beings today. It is somehow like a cat, but much bigger than it. It lives in the forest, and feeds on small animals.
Nowadays, the number of the wild tiger is becoming small and small. Maybe there will be no tiger any more if people continue cutting the trees, destorying the living environment or hunt the tiger just for the skin. We must stop all these mistakes. We should protect them, because the world without tiger is not a completed one.
Giant Panda is our national treasure, the state can be said for the protection of giant pandas put a lot of human and material resources giant now has been the world's people the protection and care, which is a good thing, of course, the Tibetan antelope as the country's animal protection , The National People have been recognized, however, this tiger? The poor will be extinct Siberian tiger who is going to have a genuine concern and care a little bit?
According to statistics, the Siberian tiger left at present, less than 20, still such a small number of these survive, has had imagined. Two years ago, in the mountains of Huanren, Liaoning found to be a man to die under the presentation of the Siberian tiger, from this we can see that the above countries and the people of the importance we attach to it, this first Manchurian tiger is actually how the dead do not Conclusion, and the other is only from the northeast where hu came to the place where the wonder and the third is the matter did not rise to the national media in particular. This really puzzled the other person you! Is it really the other tiger who fear love is not worth it, it really fate of the Siberian tiger so?
Towering mountains should not unique to human beings, should not have dense forest unique to human beings, rivers clear this should not be unique to human beings, the Siberian tiger survival of this nature should not be unique to human beings. Siberian tiger to the left of a piece of heaven and earth to survive it, the High IQ is the human species, there are still ways to leave that piece of local survival, and the tiger have to leave that piece of the local dead; you save tigers, is the human population control, engage in Family planning, and the Siberian tiger is scarce Rending it! Now we can hear the cries of tigers in the future even the Siberian tiger can be heard the cries.
人是自然的产物,人依赖自然而生存,这是众人皆知的道理。在生存与发展的过程中,人与自然应和谐相处。可现在,由于人口的膨胀,特别是人类的贪欲,对自然进行无节制的索取,自然已遭到严重的破坏,污染了水,减少了绿,消失了部分的生命,甚至威胁到了人类自身的生存。
人与自然息息相关。人的生存就依赖于自然资源。饮用的水。取暖的煤。燃烧的油。做饭的气无一不是直接或间接来源于自然源。
地球资源再丰富,也有竭尽之时。因此,人类对自然资源的利用,特别是不可再生的资源,一定要合理开采,有效利用,切实保护自然资源,那种涸译而渔,***鸡取卵的只顾眼前的做法,无异饮鸠止渴,最终受害的将是人类自身,人与自然资源之间,应走可持续的路子,切实保护好自然资源。
人与自然之间应和谐相处,已被越来越多的人认同,接受并去实践,为什么要和谐,此中的道理很明显,人对自然超强度地索取,自然就会报复人类,这已从众多自然灾害中得到了体现。
从古到今多少人为之讴歌,他们沉醉在其中而流连忘返,用他们灵性的笔,书写了经世的佳作诗篇。这些,曾让多少人为之惊叹!热爱自然。走进自然。亲近自然。书写自然吧,这将是你最美好的选择。
放眼望去,有的只是凹凸的地皮,大片大片的树林遭人砍伐,变成人们生活上的木制品。人们只为一己私利,使成群的动物流离失所,奔向它方。这并不是虚假的幻想,这是血淋淋的事实。
曾几何时,世界上大批的动植物遭到灭绝,还有许许多多的动植物濒临灭绝,这都是为什么?这都是因为人类乱伐树木,破坏了生态环境,这才是根本原因。
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230亿吨/年。
有人认为酸雨是一场无声无息的危机,而且是有史以来冲击我们最严重的环境威胁,是一个看不见的敌人。这并非危言耸听。随着工业化和能源消费增多,酸性排放物也日益增多,它们进入空气中,经过一系列作用就形成了酸雨。
赤潮虽然自古就有,但随着工农业生产的迅速发展,水体污染日益加重,赤潮也日趋严重。我国自1933年首次报道以来,至1994年共有194次较大规模的'赤潮,其中60年代以前只有4次,1990年后则有157起。石油类污染对水质和水生生物有相当大的危害。漂浮在水面上的油类可迅速扩散,形成油膜,阻碍水面与空气接触,使水中溶解氧减少。油类含有多环芳烃致癌物质,可经水生生物富集后危害人体健康。二氧化硫主要由燃煤及燃料油等含硫物质燃烧产生,其次是来自自然界,如火山爆发、森林起火等产生。二氧化硫对人体的结膜和上呼吸道粘膜有强烈刺激性,可损伤呼吸器管可致支气管炎、肺炎,甚至肺水肿呼吸麻痹。短期接触二氧化硫浓度为0.5毫克/立方米空气的老年或慢性病人死亡率增高,浓度高于0.25毫克/立方米,可使呼吸道疾病患者病情恶化。长期接触浓度为0.1毫克/立方米空气的人群呼吸系统病症增加。另外,二氧化硫对金属材料、房屋建筑、棉纺化纤织品、皮革纸张等制品容易引起腐蚀,剥落、褪色而损坏。还可使植物叶片变黄甚至枯死。
保护环境,人人有责。
A tiger is a kind of catamount animal. It looks like a cat, but much bigger than a cat. A tiger is very ferocious and it eats mainly meat. It has yellow and black streaks all over its body and it looks very beautiful. Its tail is long and strong and it can hit its quarry dying.
Tigers live in the thick forests and small animals in the forests are tigers' food.
During the past years, many forests have been cut down and the living conditions of the tigers are becoming worse and worse. There are fewer tigers left in the world now. Tigers are the animals of the world, and they should have their own living spaces. We must do our best to protect the tigers and their living environment.
今天星期一,我们学校要升旗。我起床后便匆匆忙忙出了家门。
一出门,我就惊呆了:门口堆满了比珠穆朗玛峰还高的垃圾,臭气熏天!绕着“垃圾珠穆朗玛峰”的是一个个深不见底、通向地心的矿坑,一股股刺鼻的热气从底下冒上来。仰头望去,天上灰蒙蒙的,掺杂着黄沙,太阳早已不见了踪影,我小心翼翼地绕过一个个矿坑,来到海河边,海河的水都哪里去了,只看到河床里到处是布满垃圾的污泥,弥漫着刺鼻的臭气。
我匆匆赶到学校,学校的电子屏上写着:“请各位同学跟随自己的家人,尽快到安同路原址上的广场乘坐逃生舱。距离末班逃生舱出发时间还有2小时。”我火速返回家,把这事告诉了家人。家人们迅速地收拾好行李,向安同路出发。1小时后,我们乘坐末班逃生舱离开了地球,来到了火星。我们在火星上安了一个新家。一天,我乘坐飞行器前往冥王星找同学。半路上,我一直看着我熟悉并热爱的地球,突然,这个曾经美丽富饶的星球,一下子变成一个大火球,随着几次剧烈的爆炸,地球消失了。“不!”我大声地哭喊着,“地球,我不想失去你!”
我蹭地一下坐了起来,脸上还挂着泪水,原来这是我做了一个噩梦!
我半天没有缓过神来!还好,这只是一个梦。但回想起来,我们身边的人们却一直在尽情而又贪婪地浪费着地球资源,破坏着地球环境。不是吗?你看,各种矿场、化工厂以及滥砍滥伐,无情地破坏地球环境;马路上汽车成灾,尾气排放超标;人类为了私欲发动战争,全年地球没有战争的日子只有25天,地球已经千疮百孔……
我曾经跟着爸爸妈妈去过世界上很多美丽的地方,那蓝色的大海,绿色的森林,辽阔的草原,弯弯的小河,令我无比留恋,我也憧憬着长大后去更多的地方,去探知无尽的未来。但这个噩梦突然让我有一些恐慌,假如地球真的遍体鳞伤,被人类毁坏,那么所有的一切不复存在,人类将陷入万劫不复之境地。
要想留住地球,就要从小事做起,从我做起。我们要成为环保小卫士,一定要把地球的病治好。做到不随地乱扔垃圾、要爱护身边的动植物、要节约用水、要绿色出行等等。虽然这些都是小事情,但我相信,只要坚定地做下去,一定能使我们的地球更加美丽富有。
因为,我真的不想和地球说再见。
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