Question

帮忙写篇英语作文~谢谢拉！

一篇发言稿，60—80字，从一个或几个方面说明树对环境的影响。
参考词汇：take...from...从……吸收
release 释放 carbon dioxide 二氧化碳 wash away 冲走 climate 气候 protect 保护 soil土壤 keep the balance of nature保持生态平衡

Answer 1

树木的四大好处：
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.
树木可以净化空气、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。
树木还可以减少噪音。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”。
树木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。
树木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。

The benefits of trees in the four ：
1. Trees can regulate climate, maintain the ecological balance. Trees through photosynthesis, the inhalation of harmful carbon dioxide out of oxygen, the air clean and fresh.a acre forest produce enough oxygen to breathe 65.
2. Trees to wind sand, soil and water conservation, but also to absorb all kinds of dust, a acre trees to absorb all kinds of dust a year, 20-60 tons.
3. Mangroves can reduce the noise pollution of the .40-meter wide belt can be reduced 10-15 dB noise.
4. Exudates of trees to kill bacteria. Every cubic meter of air space in the 10,000 bacteria 3,4, 3,4 forest only 100.
Trees can purify the air, beautify the environment, such as greening of the motherland, it can also absorb oxygen for the people, sucked into the carbon dioxide people exhale.
Trees can also reduce noise. Noise pollution on human life, study, work, rest and so have caused great harm, it can be said is the "enemy."
Trees not only for the survival of mankind has a very important environmental benefits, but also for the production and life of mankind has tremendous economic benefits.
Unreasonable human development and utilization of natural resources, is the main reason for the ecological imbalance. Deforestation, deforestation, land clearing, overgrazing, and the destruction of forests and pastures, resulting in soil erosion and land desertification, so that dust storms occur frequently. Unreasonable development, occupation of land, so that arable land is decreasing.
In the maintenance of trees plays an important role in ecological balance with oxygen, purify the air, conserve water sources, soil and water, regulating climate, wind and sand, the elimination of noise and other functions. Now, we understand the benefits of planting trees so much, we even have to consciously carry out the obligations of afforestation, in order to create a better home for us to lay the foundation.