以to protect forests为题，写一篇英语作文如下：The forests are very important to humans and hey can make the air fresher cleaner and help to control the hey can also give us wood、food、medicine and so But now the well first,we mustn’t cut down trees we should plant more second,we shouldn’t use chopsticks for only hird,we shouldn’t waste 中文翻译：森林对人类和动物都很重要。它们可以使空气更清新，有助于控制天气。他们还可以给我们木材、食物、药品等等。但是现在首先，我们不能砍树。我们应该多种三棵。第二，我们不应该只用筷子一次。第三，我们不应该浪费纸。
To Protect Forests The forests are very important to humans and they can make the air fresher cleaner and help to control the they can also give us wood, food, medicine and so many animals live in the But now the first, we mustn't cut down we should plant more second, we shouldn't use chopsticks for only third, we shouldn't waste paper
回答 您好，我是小关老师，您的问题我已经看到了，正在整理答案，请稍等一会儿哦~ Protection of forests The forest is the coat of the earth, the umbrella of the earth, and an indispensable resource for the survival of human beings, animals and In recent years, the forest area on the earth is disappearing at a rapid rate, which must be paid attention to by Let's take action, do our part to avoid the forest, and do what we can to make the earth 森林是大地的外衣，是地球的保护伞，同时也是人类与动植物生存不可或缺的重要资源，而近年来地球上的森林面积正以飞快的速度消失，这点必须引起人们的重视。 让我们行动起来，为不会森林献出自己的一份力，做些力所能及的事，让地球回归美丽 希望我的回答能帮助到您，祝您生活愉快！元旦快乐！ ❤️❤️❤️ 提问 谢谢 回答 ❤️❤️❤️ 更多8条
写作思路：根据为森林主题，以为保护基调来展开描写，紧扣叙述与描写的内容，力求做到不突兀、不生硬，不长篇大论或肆意抒情，有情真意切之感。范文：To Protect Forests保护森林The forests are very important to humans and animalsthey can make the air fresher cleaner and help to control the weather they can also give us wood， food， medicine and so on森林对人类和动物都很重要。它们可以使空气更清新，有助于控制天气。他们还可以给我们木材、食物、药品等等。But now the well first， we mustn＇t cut down trees we should plant more threes second， we shouldn＇t use chopsticks for only once third， we shouldn＇t waste paper但是现在首先，我们不能砍树。我们应该多种三棵。第二，我们不应该只用筷子一次。第三，我们不应该浪费纸。
森林是一种重要的自然资源，与人类的关系极为密切，它对人类的贡献是多种多样的，不仅提供各种木材和经济植物，同时也是许多食物的来源。但是，听说我国的森林资源不断减少，造成了严重的后果。大家可知道，森林的作用很大。 一是涵养水源和保持水土。森林一方面有防止水土流失，达到保持水土的作用；另一方面，有保存雨水的功能，有些人把森林比作“绿色水库”。二是改善我们的生活环境。森林能吸收二氧化碳并放出氧气。森林放出的氧气是我们人类以及动物所需氧气的来源，一公顷林地每天能吸收1000公斤二氧化碳，放出730公斤氧气，这对于保持空气的清新具有重要意义。 三是森林在环境污染防治方面具有重要作用。森林不但能吸收二氧化碳，还能吸收其他有毒有害气体和监测大气污染。工业发展过程中不断排放出大量有害气体，如二氧化硫、氟化氢、氮氧化物等，污染环境。林木能在低浓度范围内吸收各种有害气体，使污染的空气得到净化。此外，有些植物对大气污染具有敏感反应，可用来监测大气污染。森林能减低噪声。城市噪声污染严重，林木能通过其枝叶的微振作用，减弱这种有害的噪声。四是森林是保护野生生物的良好场所。森林是许多野生生物的良好栖息地，宝贵的野生生物资源是离不开森林的，没有森林，它们就无法生存。五是森林能调节气候。森林有巨大的蒸腾作用。平均一棵树在一个夏天要蒸腾2000公升的水。因此林地的空气湿度比无林地高出15~25%，降水量也有增加。森林资源不断减少，不仅使木材和林副产品短缺，加剧了供需矛盾，而且给生态环境带来了严重的不良后果。一些珍稀的动植物减少甚至灭绝，环境质量下降，水土流失，河库淤塞，旱涝、泥石流等灾害加剧。森林的减少也影响了气候，减少了降水量。另一方面，森林保护环境、净化空气、吸毒消尘、杀菌灭病的作用也被削弱或消失。总之，生态环境的恶化已向人们提出了严峻的挑战，如果再不采取果断措施保护森林，发展和扩大森林资源，而是继续任意破坏，人们就会受到更加严厉的惩罚。保护我们不断减少的森林资源吧！
Both forest resources and the environment with its dual biological properties, and has a huge production capacity and become a very important land To Forests not only provide a variety of products that can be materialized, but also to create a beautiful ring Environment, play a strong eco-efficiency, maintain the ecological balance of the earth, constitute the basic human survival and development of S Look at all times, all social progress and development of forest growth and decline, the rise and fall closely related to forestry, forest Forests and forestry is an important symbol of social However, population growth and economic development pressure, so many parts of the forest Lin reduction and If this trend continues, the future more and more specific than today's population today relies less than the Forests, which biodiversity, global climate and life support systems will have a significant impact, severely limiting people Class Therefore, the production function and must be in the forest to find a balance between the protection Forest ecosystems to human Contribution to the class, often used in ecological research, "ecological, social and economic benefits" to However, Because of its complexity and uncertainty of how the valuation of these benefits, has been plagued ecologists and economists Important Can you give forest ecosystems for scientific contribution to mankind's valuation, will have a direct impact on policy at all levels Government decision-making Let ecosystem services from the perspective of the contribution of forests to human Ecosystem functioning and ecosystem services Earth's ecosystem is human survival and development of material base, ecosystem services and the health of these services generated State system itself on the Earth's life support system functions is essential to They directly or indirectly, to improve the human Class benefits, and therefore reflects the total economic value of the part of the Because ecosystem services can not be fully in the market The reflected, or fully productive capital with economic services and compared it in the formulation of policies, they often do not Have seriously enough, will eventually endanger the sustainable development of Based on this understanding, some scholars under the public On the original published studies and some calculations to estimate the 17 communities in 16 categories of ecosystem services, the economic value of existing Value, and thus calculate the value of the entire biosphere For the entire biosphere, the value of its annual Between 16-54 trillion dollars, the average annual value of 33 trillion Because there are some uncertainties, this estimate Is a minimum In contrast, global GDP each year is approximately 18 Life left Support system of services, all economic activities on the planet will cease to In this sense, the planet's ecosystems The total value of the service role of the economy is CONST ANZA and other forest ecosystem services (climate regulation, disturbance regulation, water supply, water regulation, erosion control System, to soil development, nutrient cycling, waste treatment; biological control, food production, raw materials, genetic resources, entertainment Music, culture 14) pricing that provides services to the global forest each year the total value of about 7 trillion US dollars; per hectare About $ 969 (which provides raw materials and food production were $ 138 and $ 43, both of 68% Scholars in China (1999) calculated the 38 major national forest ecosystem services worth about 11,740,100,000 US Yuan / year, of which eco-efficiency value of approximately $ 9,339,000,000 / year, 55% of total value, social value (Here refers to its cultural value) of about 2 billion US dollars / year, 17% of total value, while the economic value of forests around their 38 billion / year, the total value of 28% Shows the maximum value of the forest ecosystem is reflected in the eco-efficiency Benefits, and its value is 92 times the economic Scholars in China (1999) Benefits of Forest results show that the total effective value of forests in Heilongjiang 49,868,700,000 yuan, accounting for the province (1999-1992) average annual output value of 2 billion yuan of 7% Total benefit in the forest , The tangible products (economic) and intangible benefits of the value of products (public) benefit ratio of 1:83 Usually manifested forest forest ecosystem services "intangible product", as opposed to forest resources and other "tangible products Products "is often easily However, these products have been invisible to mention the environmental quality of human life Contribution to the high silence, the survival of human development at all times with the solidarity of forest ecosystem Special Is a huge increase as the world's population, resource crises, environmental degradation, as people on the pursuit of sustainable human development and thirsty Wang, the ecological services of forest ecosystem function is relatively much more important will be reborn as the Inherent fragility of our natural environment, and long-term destruction of forests, leading to the main terrestrial ecosystems as The forest area of less than body, the current forest coverage rate is only 92%, and the uneven distribution; cause of ecological environment has Degradation, soil erosion and natural disasters, serious and Forestry is also a result of the development towards a new Road, its functions by the production of timber oriented to ecological environment protection and construction of the main采纳哦
森林像屏障，阻挡着风沙入侵内陆。
Harmony with the environment is that we live in on Earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on Earth, the Plant human cells, if it damaged, destroyed nature organizations, to the eradication of Therefore, the environment must be linked with social ethics, character education and practice acts as an important element of Everyone must fulfil its responsibilities and obligations to protect the 人与环境是和谐相处的，我们生存在地球上，人是自然之子，而不能仅把人看作自然的征服者，大家都知道，人类只有一个地球，地球上的山山水水、动物。植物是人类的细胞，如果我们把它损坏了，破坏了大自然的组织，等于消灭人类。因此，环境要与社会公德联系起来，与实践行为作为人格教育的一项重要内容来抓。每个人都要履行保护环境的责任和义务。
Protection forest Forest and mankind, mankind intimate partners, is an important part of the global ecological If there is no forest land, most biological extinction, the vast majority of water will flow into the ocean; the oxygen in the atmosphere will reduce, carbon dioxide will increase; the temperature can significantly increased, flood and drought disasters occur Forest, but also can improve the air quality, reduce soil loss, water conservation, reduce the harm of sand blown by wind, reduce noise pollution, beautify the environment and so The forest is precious natural resources, is the human to pillar foundation, and was known as the "lungs of the earth" Why the forest to maintain the ecological balance has an important role? First of all, the nature of all need oxygen to sustain life, and forest is a natural oxygen machine, if the forest and other green plants, is destroyed, the biological survival loses In addition, the forest can regulate the temperature, stop acid rain, dust, noise is attenuated, reducing wind, reduce natural Destruction of forest resources to environmental impact is very serious, loss of ecological Caused by high temperature, air quality is bad, also caused the extinction of wild animals Forest fire is the most dangerous enemy is forest, forestry is the most terrible It will give the forest with devastating Forest fire not only burned forest patches, injury in animals, but also reduce the forest regeneration ability -- a fire, the forest may take decades or even centuries to It can cause the poverty of the soil and water conservation function of forest destruction, even lead to ecological Although now the world science in developing rapidly, however, the human in the uniform of forest fires, but still has not been made a great Forest fire, refers to losing control people, free spreading in woodland, forest, the forest ecosystem and the human bring certain harm and loss of forest fire Forest fire is a sudden, devastating natural disasters, handling more The present situation of the forest, a lot of people do not Please see" -- many tractors, bulldozers rumbled, difficult to count the trees down to the The animals were scared away, plots of land were bulldozed flatIt is human behavior? Love forest! Action bar! Deforestation deforestation forest is human folly, then do not do the harm We must protect the existing forest resources! Beware of forest fires happening again!
Harmony with the environment is that we live in on Earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on Earth, the Plant human cells, if it damaged, destroyed nature organizations, to the eradication of Therefore, the environment must be linked with social ethics, character education and practice acts as an important element of Everyone must fulfil its responsibilities and obligations to protect the 人与环境是和谐相处的，我们生存在地球上，人是自然之子，而不能仅把人看作自然的征服者，大家都知道，人类只有一个地球，地球上的山山水水、动物。植物是人类的细胞，如果我们把它损坏了，破坏了大自然的组织，等于消灭人类。因此，环境要与社会公德联系起来，与实践行为作为人格教育的一项重要内容来抓。每个人都要履行保护环境的责任和义务。
不会吧
Harmony with the environment is that we live in on Earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on Earth, the Plant human cells, if it damaged, destroyed nature organizations, to the eradication of Therefore, the environment must be linked with social ethics, character education and practice acts as an important element of Everyone must fulfil its responsibilities and obligations to protect the 人与环境是和谐相处的，我们生存在地球上，人是自然之子，而不能仅把人看作自然的征服者，大家都知道，人类只有一个地球，地球上的山山水水、动物。植物是人类的细胞，如果我们把它损坏了，破坏了大自然的组织，等于消灭人类。因此，环境要与社会公德联系起来，与实践行为作为人格教育的一项重要内容来抓。每个人都要履行保护环境的责任和义务。
中国国家地理杂志美国国家地理杂志森林与人类。。。。。。。。
Both forest resources and the environment with its dual biological properties, and has a huge production capacity and become a very important land To Forests not only provide a variety of products that can be materialized, but also to create a beautiful ring Environment, play a strong eco-efficiency, maintain the ecological balance of the earth, constitute the basic human survival and development of S Look at all times, all social progress and development of forest growth and decline, the rise and fall closely related to forestry, forest Forests and forestry is an important symbol of social However, population growth and economic development pressure, so many parts of the forest Lin reduction and If this trend continues, the future more and more specific than today's population today relies less than the Forests, which biodiversity, global climate and life support systems will have a significant impact, severely limiting people Class Therefore, the production function and must be in the forest to find a balance between the protection Forest ecosystems to human Contribution to the class, often used in ecological research, "ecological, social and economic benefits" to However, Because of its complexity and uncertainty of how the valuation of these benefits, has been plagued ecologists and economists Important Can you give forest ecosystems for scientific contribution to mankind's valuation, will have a direct impact on policy at all levels Government decision-making Let ecosystem services from the perspective of the contribution of forests to human Ecosystem functioning and ecosystem services Earth's ecosystem is human survival and development of material base, ecosystem services and the health of these services generated State system itself on the Earth's life support system functions is essential to They directly or indirectly, to improve the human Class benefits, and therefore reflects the total economic value of the part of the Because ecosystem services can not be fully in the market The reflected, or fully productive capital with economic services and compared it in the formulation of policies, they often do not Have seriously enough, will eventually endanger the sustainable development of Based on this understanding, some scholars under the public On the original published studies and some calculations to estimate the 17 communities in 16 categories of ecosystem services, the economic value of existing Value, and thus calculate the value of the entire biosphere For the entire biosphere, the value of its annual Between 16-54 trillion dollars, the average annual value of 33 trillion Because there are some uncertainties, this estimate Is a minimum In contrast, global GDP each year is approximately 18 Life left Support system of services, all economic activities on the planet will cease to In this sense, the planet's ecosystems The total value of the service role of the economy is CONST ANZA and other forest ecosystem services (climate regulation, disturbance regulation, water supply, water regulation, erosion control System, to soil development, nutrient cycling, waste treatment; biological control, food production, raw materials, genetic resources, entertainment Music, culture 14) pricing that provides services to the global forest each year the total value of about 7 trillion US dollars; per hectare About $ 969 (which provides raw materials and food production were $ 138 and $ 43, both of 68% Scholars in China (1999) calculated the 38 major national forest ecosystem services worth about 11,740,100,000 US Yuan / year, of which eco-efficiency value of approximately $ 9,339,000,000 / year, 55% of total value, social value (Here refers to its cultural value) of about 2 billion US dollars / year, 17% of total value, while the economic value of forests around their 38 billion / year, the total value of 28% Shows the maximum value of the forest ecosystem is reflected in the eco-efficiency Benefits, and its value is 92 times the economic Scholars in China (1999) Benefits of Forest results show that the total effective value of forests in Heilongjiang 49,868,700,000 yuan, accounting for the province (1999-1992) average annual output value of 2 billion yuan of 7% Total benefit in the forest , The tangible products (economic) and intangible benefits of the value of products (public) benefit ratio of 1:83 Usually manifested forest forest ecosystem services "intangible product", as opposed to forest resources and other "tangible products Products "is often easily However, these products have been invisible to mention the environmental quality of human life Contribution to the high silence, the survival of human development at all times with the solidarity of forest ecosystem Special Is a huge increase as the world's population, resource crises, environmental degradation, as people on the pursuit of sustainable human development and thirsty Wang, the ecological services of forest ecosystem function is relatively much more important will be reborn as the Inherent fragility of our natural environment, and long-term destruction of forests, leading to the main terrestrial ecosystems as The forest area of less than body, the current forest coverage rate is only 92%, and the uneven distribution; cause of ecological environment has Degradation, soil erosion and natural disasters, serious and Forestry is also a result of the development towards a new Road, its functions by the production of timber oriented to ecological environment protection and construction of the main采纳哦
走遍～～～系列
中国比较医学杂志、动物学研究、中国实验动物学报、实验动物科学。国内的这几个都是可以的。
《大自然》可以算是一本不错的杂志。大自然创刊于1980年，谭邦杰、郑作新等老一辈生物学家都曾在上面撰文，很多现在的自然爱好者也都是看着《大自然》长大的。这本杂志内容严谨详实，不过图文排版风格与宣传工作还略显老旧。
sci对于大学生有何帮助?我们如何利用它?谢谢大家 报告首长： 应该是大写的英文字母SCI、EI。他们能帮助你们考研、赚钱、找工作、添加荣誉、为母校争光、使学校对你们增加投资。 同时也败坏了学风、促使抄袭早就蔓延到绝大部分本科毕业论文、给社会和国家制造巨大潜在的社会危机、卖国无良教授专家社会精英绑架了政府、迫使政府社会个人注入巨额资金、抬高了学费和国家投入、大量采购教学科研仪器造成了设备空闲、完好率低、维修费用高、仪器设备淘汰极快、使用率低下、社会成本教学成本居高不下、教师取了高额的报酬、大量进口大型精密仪器试剂、无收益地消耗了大量的社会资源，并且形成了声势越来越浩大的恶性循环，其实质，就是敌对国家通过在中国的代理人—汉奸不法知识分子制造的类似星球大战对社会在冠冕堂皇光环下的腐蚀和破坏，危害国家安全！！！更高明的黑招数是国外敌对势力的代理人假惺惺地诱导我们将国力投入争取诺贝尔奖的空中楼阁，做那些荒诞不经的课题，还诱你就差那么一点点，再进口国外最先进的分析仪器设备、到发达国家那些顶级大学培训、入学，就能实现你们梦寐以求的最高境界。这是卖国贼制造的一场阴谋，妄想迷惑、破坏国家的乌托邦幻想；是挖掘黑洞和陷阱，是巨额消耗国力、通过各校重奖发表三大检索论文的知识分子来绑架zhengfu的蛊惑人心的宣传伎俩。 这就是毕业生找工作难、企业产品在国际上的竞争力差、只能做系统集成、在基础工业能力没有实质提高，依然落后于发达国家数十年、甚至连30年前的中国基础水平都不如、社会矛盾剧烈的根本原因。 所以，对于中国有实质性意义的真招、实干，是用中国的资源，从基础制造出具有国际竞争力的产品，而且是优先国民消费。用巨额社会资源、进口设备、进口集成电路砸政绩为目的来引进人才，太危险了！！！要严格整肃！毫不留情！ 因此，中国教育的出路不是泛泛的开放，现在已经太民主自由了，而是从问题俯拾皆是的基础做起，扎实才是根本之道。 张鸣先生说：各种评审的指标体系，如核心期刊论文数量，国际SCI、EI论文数量，国家级课题数量，省部级课题数量，课题经费总量等等，实际上只是具有中国学术特色的自娱自乐。中国所谓的学术核心期刊，其学术品质，原本就是周知的，但是，在各个高校发疯追求论文数量的情况下，有某大学带头发明了硬性规定研究生发表核心期刊论文作为毕业前提条件的方法，人为拉高学校的论文发表数量，其他学校纷纷跟进，使这种本质上违法的行为，成为高校的新惯例。研究生做不出论文，就买，不仅买论文，而且买版面，各个学术期刊，因此出卖版面，蔚然成风，进一步败坏了学术期刊的质量。现在的状况是，跟中国有全世界最多的大学生相匹配，中国也有世界上最大的论文发表量，但科研竞争力却呈逐年下降的趋势，基础工业能力没有实质提高，依然落后于发达国家数十年。核心期刊和论文发表如此，所谓的课题也如此。往往官越大，课题就越多，当然也就越没有时间做（这是假定他们都有学问的前提下），只能让学生做，因此研究生们就成了导师的打工仔，廉价劳动力，这样的课题，能有什么质量，可想而知。从教师的基础水平、道德底线、创新能力、责任心、起码的道义感，从中国自行车与发达国家的自行车的每一个细节的比较就可以清楚区别了， 这样的课题和论文的实质水平你自己就清楚了。学校的教师，在定期的考评面前，必须拿出东西来凑数，否则就会下岗。当然，如果产量高，也有奖励，尤其是在所谓A级B级刊物上发文章，奖金甚为可观。
二选一的话，建议《科学世界》，是科普和知识性的。《科学之谜》的话，看名字似乎内容里都是没有答案的，还是学点东西选择《科学世界》的好。另外还有《发现》（DISCOVERY），《自然》，《科学》。