Samantna523
he preservation of ecology and the human existencethe heavy flood in 1998 left an unforgetable picture in the memory of chinese people.in front of the united chinese people,the flood retreated eventually.but it left people a profound thought that preservation of ecology concerns the human existence.in recent years china has seen a series of had floods.looking into the causes,cutting down trees at will is among the major ones.tree can be of great value to people.first,trees can regulate the climate properly and they prevent soil erosion. without trees our entire world would be a much barren and miserable place.then trees take in carbon dioxide and release oxygen to suouldstain our live.trees make life possible.to draw a lesson from the bitten experience,we sh ould plant trees and care for trees in return for the many benefits they give us.at the same time, to improve the ecology of human existence and to make the world a pleasant place to live in.翻译生态保护与人类生存1998年特大洪水在中国人民的脑海中留下了不可磨灭的记忆.在团结起来的中国人民面前,洪水最终退去了.但它留给人们一个深深的思考；保护生态是否与人类的生存有关呢?近年来,中国经历了多次洪水的考验.究其缘由,乱砍滥伐是主要的原因.树木对人类起着很大的作用.首先,树能适当地调节气候,防止土壤受到侵蚀.没有了树木,我们整个世界可能会成为一块贫瘠不堪的土地.再者,树木还吸收二氧化碳,释放出氧气来维持我们的生活,它维系着生命.痛定思痛,我们应该以植树,护林来回报它们带给我们的益处.同时,我们应改善人类生存的生态环境,使地球成为一个舒适的家园.
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