两篇英语资料

说清楚点 什么污染种类``影响啊

这是 第一个` 树的好处

四大好处 1.树木能调节气候,保持生态平衡.树木通过光合作用,吸进二氧化碳,吐出氧气,使空气清洁,新鲜.一亩树林放出的氧气够65人呼吸. 2.树能防风固沙,涵养水土,还能吸收各种粉尘,一亩树林一年可吸收各种粉尘20—60吨. 3.树林能减少噪音污染.40米宽的林带可减弱噪音10—15分贝. 4.树木的分泌物能杀死细菌.空地每立方米空气中有3,4万个细菌,森林里只有3,4百个. 植树造林是我们每个公民的义务，国家还专门规定了在三月十二日这天为植树节。植树造林对我们的学习、工作、生活等方面都有很大的好处。 植树造林可以净化空气、美化环境、绿化祖国等，它还能制造氧气供人们吸收，吸进人们呼出的二氧化碳。如果不大量的植树造林，那么地球上的氧气，就很难满足人类和各种生物的需求。 植树造林还可以减少噪音。噪音的污染对人类的生活、学习、工作、休息等方面都造成了很大的危害，可以说是人们的“敌人”。因此我们更要重视植树造林。噪音还可以使人类在长期的生活中听力减弱、耳聋、变傻,心脏、血压、神经等出现异常。甚至，还能让人在长期的噪音煎熬下死亡。这样植树造林就能使噪音减小四、五倍。 植树造林不仅对于人类的生存具有十分重要的环境效益，而且对于人类的生产和生活具有巨大的经济效益。 人类对自然资源的不合理开发利用，是造成生态失衡的主要原因。乱砍滥伐、毁林开荒、过度放牧等，会破坏森林和草场，造成水土流失和土地荒漠化，使沙尘暴频繁出现。不合理的开发、占用土地，使耕地面积日益减少。 植树造林在维护生态平衡中起着重要作用，具有制造氧气、净化空气、涵养水源、保持水土、调节气候、防风固沙、消除噪音等功能。现在，我们了解了植树造林这么多的好处，我们就更要自觉履行植树造林的义务，为创造我们美好的家园奠定基础。

英文翻译是

Four good

1. Trees can regulate our climate, maintaining ecological balance. Trees through photosynthesis, they absorb carbon dioxide, oxygen spit, Clean air, fresh. 65 acre forest emit eno 2. Fixing trees can, conserve soil and water, but also to all kinds of dust. an acre of trees can absorb all kinds of dust 20-60 tons a year. ugh oxygen breathing. 3. Mangroves can reduce noise pollution. 40-meter-wide tree belt noise can be reduced 10 to 15 decibels. 4. Bacteria can kill trees secretions. 3,4 per cubic meter of air space with 10,000 bacteria, only three forest. four hundred. Afforestation is the obligation of every citizen, the state will also set a March 12 special day for the past 21 years. Afforestation of our study, work, life, and so have a great advantage. Afforestation can purify the air, landscaping, afforestation of the motherland, it is also capable of absorbing oxygen for people. absorb the carbon dioxide people exhale. If a large number of afforestation, the world's oxygen, it will be difficult to meet human and biological needs. Planting trees can also reduce noise. Noise pollution on human life, study, work, rest and so has caused a lot of harm. It can be said that the "enemy." Therefore, we should attach importance to afforestation. Noise can also enable human life in the long-term decline of hearing, deaf, changed silly, heart, blood pressure, nerves and other abnormalities. Even, but also people who died under the long-term noise nuisance. 4 afforestation will be able to reduce this noise, five times. Afforestation is very important not only for the survival of mankind's environmental benefits, and the production of human life and has enormous economic benefits. Irrational exploitation of natural resources, ecology is the main reason for the imbalance. Deforestation, deforestation, land reclamation, overgrazing, destroy forests and pastures, causing soil erosion and desertification. make frequent sandstorms. Irrational development of the land, arable land is decreasing. Afforestation plays an important role in maintaining ecological balance has created oxygen, air pollution, water conservation, soil and water conservation. regulatory climate, fixing, noise abatement and other functions. Now, we know so many of the benefits of afforestation, reforestation, we should more conscientiously fulfill the obligations lay the foundation for the creation of our beautiful homeland.

长可以自己删啊```我费这么大劲``分拿来``

□ 汞 污染环境，在人体内积累会损害神经系统。

□ 铅 在人体内积累能损坏脑功能并导致痴呆症。

□ 辐射 放射性物质是最危险的污染物质，可对人体造成严重的损伤并引起恶性肿痛。

□ 石油 污染海洋，会破坏大海中的浮游生物、植物和鱼类资源。

□ 氧化氯 汽车尾气中含有大量氧化氮，会导致人的肺部器官发生癌变,对循环和中枢神经系统也有危害。

□ 磷酸盐 能造成湖泊、河流的污染。

□ 一氧化碳 人类在大量地消耗石化原料时造成了大气一氧化碳的大量积累，破坏了大气温层的平衡。

□ 二氧化硫 目前由于人类每年排放二氧化硫达两亿多吨，给大气造成严重污染，引起并加重呼吸系统疾病的发生。

□ 二氧化碳 全球每年排入大气中的二氧化碳达五十亿吨,其中的十亿吨被森林吸收，十五亿吨被海洋吸收，余下二十五亿吨留在大气层中产生『温室效应』，严重污染环境。

□ PTT农药 过量使用会导致鸟类和鱼类死亡，还会导致人类癌变。

翻译‘‘

- Mercury pollution of the environment, accumulate in the human body would damage the nervous system. - The accumulation of lead in the human body can cause damage to brain function and dementia. Radiation - contaminated material is the most dangerous radioactive substances can cause serious injury to humans and cause serious pain. - Marine oil pollution, damage to ocean plankton, plants and fish resources. Automobile exhaust, which contains large amounts of chlorine-oxidation of nitric oxide could lead to the occurrence of lung cancer organ. of the cycle and also harm the central nervous system. - Phosphate can cause lake, river pollution. Carbon monoxide in a large number of human-to deplete the petrochemical raw materials caused by the accumulation of atmospheric carbon monoxide. destroyed a large layer temperature balance. - Due to the current annual emissions of sulfur dioxide reached 200 million tons of sulfur dioxide to the atmosphere caused serious pollution. cause and exacerbate respiratory diseases. Global carbon dioxide into the atmosphere each year-up 5.0 tons of carbon dioxide, 1.0 tonnes of forest absorption, Oceans absorb 1.5 tonnes and the remaining 2.5 tons produced in the atmosphere 'greenhouse effect', seriously polluting the environment. - PTT will lead to excessive use of pesticides birds and fish deaths, but also lead to human carcinogenesis.

农药英文pesticide。

农药，是指农业上用于防治病虫害及调节植物生长的化学药剂。广泛用于农林牧业生产、环境和家庭卫生除害防疫、工业品防霉与防蛀等。农药品种很多，按用途主要可分为杀虫剂、杀螨剂、杀鼠剂、杀线虫剂、杀软体动物剂、杀菌剂、除草剂、植物生长调节剂等。

按原料来源可分为矿物源农药（无机农药）、生物源农药（天然有机物、微生物、抗生素等）及化学合成农药；按化学结构分，主要有有机氯、有机磷、有机氮、有机硫、氨基甲酸酯、拟除虫菊酯、酰胺类化合物、脲类化合物、醚类化合物、酚类化合物、苯氧羧酸类、脒类等。

它们都是有机合成农药；根据加工剂型可分为粉剂、可湿性粉剂、乳剂、乳油、乳膏、糊剂、胶体剂、熏蒸剂、熏烟剂、烟雾剂、颗粒剂、微粒剂及油剂等。

农药广义的定义是指用于预防、消灭或者控制危害农业、林业的病、虫、草和其他有害生物以及有目的地调节、控制、影响植物和有害生物代谢、生长、发育、繁殖过程的化学合成或者来源于生物、其他天然产物及应用生物技术产生的一种物质或者几种物质的混合物及其制剂。

农药的危害：

农药中毒轻者表现为头痛、头昏、恶心、倦怠、腹痛等，重者出现痉挛、呼吸困难、昏迷、大小便失禁，甚至死亡。人体摄入的硝酸盐有81.2%来自受污染的蔬菜，而硝酸盐是国内外公认的三大致癌物亚硝胺的前体物。

城市垃圾、污水和化学磷肥中的汞、砷、铅、镉等重金属元素是神经系统、呼吸系统、排泄系统重要的致癌因子；有机氯农药在人体脂肪中蓄积，诱导肝脏的酶类，是肝硬化肿大原因之一。

习惯性头痛、头晕、乏力、多汗、抑郁、记忆力减退、脱发、体弱等均是有毒蔬菜的隐性作用，是引发各种癌症等疾病的预兆。