保护树木很重要英语作文优秀20篇

很多地区，因为缺少树木而发生灾难。现在，有不少人在保护树木，而也有不少人还是在森林里乱砍乱伐，

在一个森林里，大树高高地耸立着，鸟儿在枝头上歌唱，小松鼠在树枝间跳来跳去，小兔子在树下吃草，小鸭子在鸭妈妈的带领下学习走路，小袋鼠正在妈妈的袋子里甜甜的睡着……森林里一片和谐的景象。

突然，有一个木头脑袋的人开始砍起了参天大树，他还在抽着烟，“咚咚咚，咚咚咚。”鸟儿停止了歌唱，小松鼠也不玩了，躲在一棵大树下。小兔子逃回了窝里。小鸭子也不学走路了，他们跟着鸭妈妈一起藏到了草丛里。小袋鼠也被吵醒了，它在妈妈的口袋里不安的东张西望，因为它也感觉到了，有人在破坏自己的家园。

一只啄木鸟实在忍不住了，它愤怒地飞上了那个人的肩膀，想：“这段木头里一定有虫，要不然，他怎么会在森林里乱砍乱伐，破坏我们的家园。他竟然还抽烟，破坏我们这里清新的空气，这段木头里的虫，是破坏大自然，乱砍树的思想，是自私虫，贪虫，糊涂虫。我一定要找出这条虫子，让这个人停止它的行动。”

在我们的生活中，也有许多人和这个木头脑袋的人一样，他们的脑袋里有虫子，明知道不应该乱砍树，随意破坏生态环境，却还是为了自己的利益，把森林里的一棵又一棵的大树全部砍光，让动物们没出安家。虽然他们把砍下了的树全部卖了，挣了很多钱，，但是他们这样乱砍树木，会造成生态灾难，最后还是害了自己。人们乱砍树的行为，还造成了水土流失，洪水泛滥的灾难。我们曲舟的泥石流灾难，其中之一的原因也是因为人们乱砍树，泥土没有了树木的固定，就都在下雨天冲了下来，形成了泥石流。

我们应该保护生态环境，善待河水，善待空气，善待动物，善待森林。保护树木，人人有责。

环境保护

假如你是李华，现任你们学校的学生会主席。你将代表学生会起草一份倡议书，号召全校同学行动起来，为环保运动做出自己的努力。同时下周六学校将组织同学在全市进行环保宣传活动，征召志愿者到校学生会报名。

注意：(1)短文应该包括以上所提供的主要信息，可适当发挥;(2)词数：120左右;(3)倡议书格式以提供，不计入总词数;(4)参考词汇：征召(新人) recruit。

15 May, 2010

Dear brothers and sisters,

____________________________________________________________________

____________________________________________________________________

Yours sincerely,

Li Hua

University Students Union

【猜题理由】随着经济的高速发展，社会自然环境遭受严重污染。环保意识的培养和环保工作的开展成为国人，乃至世人共同关注的热点和焦点。对环保问题而言，"只要人人献出一点爱，世界将变成美好人间 !"此话题为学生熟知，与高中生的生活实际贴近，而且具有一定的开放性，使得每个学生都能够有话可说，符合新课标理念下的命题方向。

【构思点拨】首先简要介绍环保问题之重要，号召同学们行动起来，共同参与环保活动;其次就环保发出倡议，并征召志愿者。这样既把考生限定在一定范围之内，又给予了考生相当的发挥的自由，有助于考生的作文脱颖而出。

【参考范文】

15 May, 2010

Dear brothers and sisters,

On behalf of the University Students Union, I, the Chairman of the Union , am earnestly calling for your active participation in our environmental protection campaign. It is the duty of every global villager; man just can not sustain his glorious civilization without a rewarding environment, which will be possible only if man makes considerable efforts to protect the environment.

Do you cherish precio us opportunities to volunteer in our joint efforts in environmental protection? Here is a great one not to be missed by any enthusiastic youth; Right next Saturday, our university is to run a publicity campaign to advocate environmental protection across the city. The University Students Union will be in charge of recruitment of volunteers. Lets join our hands and take action immediately.

Yours sincerely,

Li Hua

In the past, there have been many endangered animals. Now they are extinct. Does it matter? Has our environment been affected by their absence? Has the quality of our own life been changed? The answer to these questions is "Yes."

Yes. It does matter if we destroy an endangered species habitat to develop more farmland, housing or industrial parks. There is a delicate balance of nature. If one small part is removed, it will effect all the other parts. For example, if certain trees are cut down, bats will have no place to roost. If they cannot roost, they cannot breed. If there are no bats, there will be no animal, or bird to eat certain insects that plague our crops.

Yes. Our environment has been affected by the absence of certain animals. Certain flowers are pollinated by butterflies, which migrate from Canada to Mexico. Some of the breeding grounds of these butterflies were destroyed. Now these flowers are disappearing from certain areas. We will no longer be able to enjoy their beauty.

Yes. The quality of our life has been changed America used to be covered with giant trees. Now we have to visit them in one small park. Rain forests around the world are being cut down to make room for humans. We will never be able to see or study this fragile ecosystem.

I would encourage us humans to look for other alternatives for our farmlands, housing, and industries. We have alternatives; the animals do not.

在过去,有许多濒危动物。现在他们正在灭绝。关系呢?我们的环境已经受到他们的缺席?我们的生活质量已经改变了吗?这些问题的答案是“是的。”

是的。没关系如果我们摧毁一个濒危物种栖息地开发更多的农田,房屋或工业园区。有一个微妙的平衡。如果一小部分被删除,它将影响所有其他部分。例如,如果某些树木砍伐,蝙蝠没有栖息的地方。如果他们不能,他们不能繁殖。如果没有蝙蝠,不会有动物或鸟吃某些破坏庄稼的昆虫。

是的。我们的环境已经受到缺乏某些动物。某些花授粉的蝴蝶,从加拿大到墨西哥迁移。一些这些蝴蝶被毁的繁殖地。现在这些花从某些地区消失。我们将不再能享受他们的美丽。

是的。我们的生活质量已经改变了美国曾经覆盖着大树。现在我们要拜访他们在一个小公园。世界各地的热带雨林被砍伐,为人类。我们将永远无法看到或学习这个脆弱的生态系统。

我将鼓励我们人类去寻找其他替代品对于我们的农田,住房,和行业。我们选择;动物不会。

the only mother of human beings, is now facing a great threat-environmental pollution. Therefore, it is important for all of us to protect the earth, for she is only home to all peoples living on it. Throughout the world, environmental pollution is becoming more and more serious as a result of various reasons .First of all, the rapid economic and social development is producing a large amount of pollution in form of gas, waster and waste;. Besides, Peoples poor awareness of environmental protection is also another important factor contributing to environmental problems. For example, a large number of people have developed the habit of using plastic bags and white lunch boxes which do great harm to environment. What’s worse, many people are cutting ting down increasing number of trees, causing soil erosion. In addition, the management of the government also contributes to serious pollution. Therefore, we must take measures to prevent the earth from being polluted. Living on this beautiful planet, we must actively contribute to beautifying the environment. Its important to improve the environmental awareness of human beings. The factories should reduce the discharge of sewage and gas. People should learn to use clean energy such as Solar, Nuclear and Hydrogen energy. The government should make some laws to ban different harmful pollution. Let’s change words into action! The earth is our only home. From now on, everybody should protect the environment and make our home a better world.

Recently, the news reported that one special kind of rhino from Africa just

passed away, which meant the disappearance of this lovely creature. What a great

pity. The tragedy is caused by the damaged environment, while human being must

be blamed for it, because we have done so many bad things to pollute the

environment and make the nature lose its balance. In order to make up our faults

and save our offspring, it is in need of protecting the environment. As the

ordinary people, we can do the small things, such as do not throw away the

rubbish and join some activities to bring the world green, like planting trees.

Every small act can make a difference. Some day, when we live with the

environment friendly, what we do is worth.

Peace is when entities are in harmony. In its most immediate and popular meaning, signifies the absence of hostilities. This definition of peace refers to a condition where nations or groups are not engaged in violent conflict. The conception of peace can go further to mean a relationship between parties characterized by respect, justice, and good will. Further descriptive meanings for peace include: a peace agreement, calm in the natural environment, an internal state of serenity, and silence. Since peace is a term prone to subjective viewpoints, there are many different definitions of peace.

The traditionally accepted political definition of peace and the very word itself comes from the influence of the ancient Romans who defined peace, pax, as absentia belli, the absence of war.

In the modern nation-state world, peace has often been understood as the absence of international war between two or more state-organized armies. However, constraining the concept of peace to the absence of international war ignores the relevance of civil war, internal genocide, terrorism, and other violence. Since World War II, wars between states have decreased while violent internal conflicts increased. Since 1992, however, internal conflicts have decreased though there are still numerous and problematic intractable conflicts. [1] Present day Sudan, as an example, is not engaged in a war with another sovereign state. However, few would deny that what amounts to genocide is taking place in its Darfur region.

Peace therefore, in the sense of the absence of hostilities, is best understood as the absence of violence between groups, whether they are part of a state apparatus or not. Johan Galtung, a very influential peace researcher, calls peace understood simply as the absence of violence "negative peace."[2] It is labeled as such because although direct violence is not taking place, the points of conflict, which can lead to violence, are not necessarily resolved.

[关于和平的重要英语作文

人类只有一个地球。他是生命的摇篮，是人类共有的家园。然而，环境污染与生态破坏已经对人类的社会经济发展和人们的正常生活构成了现实威胁。爱护环境，崇尚文明，无疑是人类自身的道义和责任。

There is only one earth. He is the cradle of life, is the homeland of all mankind. However, environmental pollution and ecological destruction of normal life has been on the social and economic development and peoples constitute a real threat. Care for the environment, advocate of civilization, is the humans moral responsibility.

我们渴望干净的地球，渴望健康的地球，渴望环保的家园，渴望绿色，健康，卫生的社区……让我们用爱心去关注环境的变化，用热情去传播环保的观念，用行动肩负起环保的重任。从我做起，从现在做起，从身边的点滴小事做起，把环保承诺变为实际行动。

We desire to clean the earth, to earth for environmental health, home, eager to green, health, the health of the community...... Let us love to pay close attention to changes in the environment, with enthusiasm to spread the idea of environmental protection, with action to shoulder the responsibility of environmental protection. Begin from me, start from now, start from the side of the little things, the environmental commitments into actions.

记住，保护地球，就是保护我们自己。

Remember, the protection of the earth, is to protect ourselves.

Students, we hope that the motherland can become pure and quiet sunshine, fresh air, such a beautiful and desirable country. How we need such air, how much we love the environment! However, boys and girls, do you know that we live on earth, good environment is destroyed, the forest on the decrease, soil and water erosion, rivers in become turbid, desert in the extension, noise increased, the population growth and the air is polluted, many share the rare animals are endangered because of this, all this will bring us endless disaster.

As a new generation of Chinese people, we should always cultivate environmental awareness and worry about our country. Some students, however, do not cherish the paper, only to tear up several sheets of paper at the beginning of a composition. Trash and see if there is an opportunity to the school, where two-thirds of all kinds of waste paper, in order to make the paper, we paid a heavy price, consumes large forests. Schoolmates, when we light this pile of paper, our hands shake, and through the light of the fire, we see a piece of green wood.

How should we protect the environment?

First, love nature and be the little leader and little propagandist who protects nature. We should love the grass and trees of the campus and the streets, and strive to be the guardians of the garden. We should not only understand the natural balance of nature. We should also promote the environmental protection of natural environment to students, society and families.

Secondly, starting from me, from now on, protect the surrounding sanitation. Do not spit, pick flowers, do not destroy trees, forests, waste paper, etc. Although our strength is limited, if everyone can start from me and start from now, then our environment can be improved.

Thirdly, we should study the knowledge of culture and science carefully, and make a great effort to protect nature from m. We in the primary school to learn scientific and cultural knowledge, grow up, with our wisdom and hands control waste water, waste gas, waste residue, mountains and desert to governance, to improve soil and water quality. I believe that our home will be better in that time.

Students, for the better of our homeland, make a move!

随着时代的变化，人们越来越不重视生活的环境了，大量的破坏森林，砍伐树木。这一种做法很不对，如果没有了树，我们无法生存下去，因为大家都知道，花草树木也跟随人一样需要呼吸。人每天需要氧气0·75公斤，放出二氧化碳0·9公斤，而植物却恰恰相反，一亩树木经过光合作用，每天能“生产”氧气94公斤，“回收”二氧化碳67公斤。植物不但能够净化空气，还能够过滤尘土。有的城市每年每平方公里降尘量达500吨，有的甚至达到1000吨，绿叶能把空气中尘土阻拦在叶面下，真是当之无愧的空气“过滤器”。

让我们一起来植树造林吧！树木对我们大家的环境很有帮助，如果全世界每一个人都植一棵树的话，那整个地球就会变成一片树的海洋，人类的空气一定会非常清新。如果树木就这样确下去的话，或许在几十年以后，我们的这个美丽的地球也会成为一个光秃秃的“糟老头”，那我们的子孙后代该怎么办？

还有水是生命的摇篮，地球上的任何生命都离不开水。地球上的水资源本来就是有限的，可是长期以来，人们只知道索取，而不懂得去珍惜，甚至污染和破坏宝贵的水资源，使得可供人类利用的水日益匮乏起来。就拿我们这里的浦阳江来说吧，本来它的水也是很干净的，现在因为它被污染了，所以要从很远的陈蔡水库去提龋

可以看出，绿化环境、保护环境有多么重要。

树木是由树叶、树枝、树干、树根和树冠组成的。我经常在小区里看到有一些人把衣服挂到树一、晾晒。人类为了自己的生存环境随意砍伐树木，造成森林资源匮乏，产生了气候的异常，使人类的生存环境变得恶劣。

树木的作用可大了。每天它都会吸收二氧化碳，吐出氧气，秋天，它的树叶落下后，会变成树木的肥料，让树木继续生长，树木可以调节气候、防风降噪、防止水土流失、山体滑坡、自然灾害，如台风、地震等，还能用它们制造白纸、纸巾，所以，它是人类最好的朋友。

大树用它高大挺拔的身躯撑起了动物和人类的生态环境。希望大家从现在做起，多用手帕少用纸巾，让我么们一起来保护人类最好的朋友------大树吧!

[保护树木三年级作文

There is only one earth. He is the cradle of life, is the homeland of all mankind. However, environmental pollution and ecological destruction of normal life has been on the social and economic development and peoples constitute a real threat. Care for the environment, advocate of civilization, is the humans moral responsibility.

我们渴望干净的地球，渴望健康的地球，渴望环保的家园，渴望绿色，健康，卫生的社区……让我们用爱心去关注环境的变化，用热情去传播环保的观念，用行动肩负起环保的重任。从我做起，从现在做起，从身边的点滴小事做起，把环保承诺变为实际行动。

We desire to clean the earth, to earth for environmental health, home, eager to green, health, the health of the community...... Let us love to pay close attention to changes in the environment, with enthusiasm to spread the idea of environmental protection, with action to shoulder the responsibility of environmental protection. Begin from me, start from now, start from the side of the little things, the environmental commitments into actions.

记住，保护地球，就是保护我们自己。

Remember, the protection of the earth, is to protect ourselves.

It is known to everyone that the unrestrained slaughter of wild animals has diminished the number of some endangered species. More and more species are being driven to extinction every year. It is terrible to think that magnificent animals are being sacrificed to human vanity

There are already laws enacted to prevent the importation of rare animals and the products made from their flesh, skin and bones.

These laws must be strictly enforced. Violators of these laws must be severely punished .Moreover, the public must be informed about the natural treasures we stand to lose .If we don’t take immediate action, we will be depriving future generations of our most precious heritage.

In Taiwan, because most people do not understand the importance of wildlife, the wildlife is in a poor situation. We Chinese are fond of eating anything delicious, so there are many animals killed by hunters. People enjoy eating tigers, bears, birds, and lions, so there are fewer and fewer birds flying in the sky and fewer and fewer bears running here and there in the forest. Instead, we often see them for sale at the market. How poor they are! And how cruel we are!

In my opinion, we should try every possible way to preserve wildlife. First, no one is allowed to hurt any wild animal. Second, the authorities concerned should punish those who kill any wild animal. Third, we should pay more attention to those endangered species to protect them from being eaten. If we can do so, nature must become very beautiful.

动物是人类的朋友，请大家保护动物吧！保护动物，人人有责！下面就是小编跟大家分享一篇保护动物高中英语作文，欢迎大家阅读！

保护动物高中英语作文一：Protect wild animals

Many animals are in danger of dying out. As is shown in the chart, we can see the number of animal species decreases faster and faster and this trend will continue. From 1980 to 2010, at least 1 million animal species have disappeared. Worse still, more and more wild animals are in great danger. It is not a piece of sensational news; it is a fact, a harsh reality. Unfortunately, we may not see these animals in the near future.

From the second picture, we can find some reasons. Why is the number of animal species declining year by year? Apparently animals have become victims of fashion industry. Animal skin has been used to make fashionable clothes and these clothes sell at a high price. So some greedy people begin to kill animals in a large quantity. This irresponsible behavior not only breaks the balance of nature but also endangers the living environment of human beings.

As far as I am concerned, something must be done to stop this illegal action. We believe "no buying, no killing". First, we must make concerning laws to protect these animals in danger. Second, we must take some measures to protect animals effectively. Animals are our friends and part of our environment. Third, we should raise peoples awareness to protect animals and our environment. In this way, we can build a harmonious society and ensure a sustainable development.

保护动物高中英语作文二：Protect animals

I am a student from Xinhua High School in Chongqing，China. Informed that you have a vacancy for a student to serve as the spokesman for animals, I cannot resist my inner excitement,hoping to seize the opportunity to do something for animals .

In my mind，nothing can delight me so much as caring for animals. Wherever I go and whatever I do, I usually keep in mind that animals are angels from the heaven, which bring us endless comfort and pleasure. I have been a panda lover since my childhood. Panda is so lovely that brings fun to people and they are regarded as the treasure of our country. Unfortunately，such a rare species is now faced with the danger of being extinct。What I am eager to do is to raise people’s awareness of animal protection and appeal to more people to care for our earth companies.

保护动物高中英语作文三：Animals Need Protecting

Animals are natural resources that people have wasted all through our history. Animals have been killed for their fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the earth forever. Hundreds more are on the danger list today. About 170 kinds in the United States alone are considered in danger.

Why should people care? Because we need animals, and because once they are gone, there will never be any more. Animals are more than just beautiful or interesting. They are more than just a source of food. Every animal has its place in the balance of nature. Destroying one kind of animal can create many problems. For example, when farmers killed large numbers of hawks, the farmers stores of corn and grain were destroyed by rats and mice. Why? Because hawks eat rats and mice, with no hawks to keep down their numbers, the rats and mice multiplied quickly.

Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger. Quite a few countries have passed laws. These laws forbid the killing of any animal or plant on the danger list. Slowly, the number of some animals in danger is growing.

保护动物高中英语作文四：Protect animals

Children, you grabbed the small tadpoles right, you must know that tadpole grew up to become small frog, the frog can eat insects, so the frog is our humans good friends. We should protect it, not hurt it. But some hotels are also sold the frog meat? Once, dad and his friends took me to dinner. A waiter said: "you see, this is we store the launch of new specials, stir flogs ball". "Chicken is what ah?" I curiously ask, "chicken is the frog." The waiter said, with a smile. I was very angry, because they hurt our good friends-frog! Another thing, he makes a big inspiration. One day, when I finish school, saw a man at the school gate at little chicks must sell, and I will have mercy on them. Because the little chicks must first came to this world, away from the mother, away from the mother love and mother warm embrace, and this is what they faced starved to death, the risk of freezing to death. At that time I thought: we humans are so happy! When you see here, did you see to protect our human friends-animals!

保护动物高中英语作文五：How tu protect animals

It is known to everyone that the unrestrained slaughter of wild animals has diminished the number of some endangered species. More and more species are being driven to extinction every year. It is terrible to think that magnificent animals are being sacrificed to human vanity

There are already laws enacted to prevent the importation of rare animals and the products made from their flesh, skin and bones.

These laws must be strictly enforced. Violators of these laws must be severely punished .Moreover, the public must be informed about the natural treasures we stand to lose .If we don’t take immediate action, we will be depriving future generations of our most precious heritage.

In Taiwan, because most people do not understand the importance of wildlife, the wildlife is in a poor situation. We Chinese are fond of eating anything delicious, so there are many animals killed by hunters. People enjoy eating tigers, bears, birds, and lions, so there are fewer and fewer birds flying in the sky and fewer and fewer bears running here and there in the forest. Instead, we often see them for sale at the market. How poor they are! And how cruel we are!

In my opinion, we should try every possible way to preserve wildlife. First, no one is allowed to hurt any wild animal. Second, the authorities concerned should punish those who kill any wild animal. Third, we should pay more attention to those endangered species to protect them from being eaten. If we can do so, nature must become very beautiful.

保护动物高中英语作文六：How to protect the animals？

Animals are our friends.But how to protect them? government is working to protect all animals in danger,and has made lots of plans to save animals. On the other hand, we shouldn’t eat wild animals.We should keep them away from our dinner. That way,there will not be wild animals on sale. I think the hunters and killers will become fewer and fewer.

Last, we should protect the environment.We should stop people from cutting trees down. Without trees, wild animals will lose their home. And we will lose our animal friends. All of us should try our best to protect animals.

We need to protect animals better.We should give them fresh water to drink.We should make the forests bigger for animals in danger to live in.We should advice people not to kill animals beacause they are our friends!

Today I am very glad here to share my opinionsabout the protection of environment.

With the development ofscience and technology ,different kinds of pollution has been produced andcaused global concern recently.

As we know, people have beenliving on the earth for thousands of years, human activity damaged natural environment, such as excessive abuse of natural resources ,the sewage dischargedfrom factories ,the animal slaughter ,kinds of chemical fertilizers andgreen-house effect. All that is mentioned above has a bad impact on the eco-system .Now, many animals aredying out. We are suffering from unhealthy food and water, we are faced withharmful rays and global warming. It was ourselves who had made a series oftroubles. As you can see, we are the final victim.

Above all, if we human beings cannot recognize theseserious problems and try our best to solve them soon, we would finally lose theenvironment suitable for us to live. So, it is our duty to protect theenvironment ,but what should we do to protect it?

In my opinion, the first and important thing is tounite all forces ,that is to say---gather all hearts together. Next we shouldprotect and plant more trees, which can dispose of the dust in the air. As forfamilies, it is effective to ride bicycles rather than drive cars. Don’t litteranywhere as you like. In addition, sorting and recycling the rubbish also playan essential role in the protection of our earth. We’d better call on everyone aroundus to lead a low-carbon life, as it may make a difference to the environment.

Thus, it’s high time that we did something to improveour surroundings. Everybody should raise the awareness to protect our motherearth. Let’s appeal to more people to join us.

All in all ,there’s no doubt that keeping the balanceof human and nature ,we will benefit a lot.

Thank you for listening！

嗨！大家好。我是一只啄木鸟，是森林医生，我每天替生了虫的树木看玻这是一个很重要的工作，要是没有我，很多树会被虫蛀死掉的。

你想想，森林对我们多重要，树木死了，我们的家园就没了，人类也将无法生存，因为没有森林这个天然氧吧，任何动物都会死去。

今天，我正尽职的巡视着森林，请保留此标记要倒下去了。我一惊，“怎么，这颗树生病了吗？病得这么厉害，一定是我往日失职，没有发现蛀虫。”

我以最快的速度飞了下去，却发现一个人正在飞舞着斧头，正在卖力的砍树呢！

“他为什么砍树呢？难道他不知道树木对人的重要性 所以我们一定要保护树木，爱护树木。

有些人总是大量的砍伐树木，用木头做成各种东西。使树的数量减少，我非常心痛。

树有很多用处：它可以为我们挡风挡雨，防止风沙来袭。而且可以团结起来，变成一道"隔音板"，为我们挡住噪音，在树木多的地方，噪音只有百分之二。最重要的一点是树木可以吸收二氧化碳， 呼出氧气，这"空气工厂"可有用了，要是没有它们人类、动植物都不能生存下去。还有，树是许多小动物的家，如果砍了树，那些可爱的小动物就没有家了，动物和人类一样要有家呀！

大树是多么有用啊！而现在的大树是多么稀少啊！请大家不要再砍树了。

The dog is one of the most popular pets in the world. It ordinarily remains loyal to a considerate master, and because of this the dog has been called mans best friend. Class distinctions between people have no part in a dogs life. It can be a faithful companion to either rich or poor.

Dogs have been domesticated for most of human history and have thus endeared themselves to many over the years. Stories have been told about brave dogs that served admirably in war or that risked their lives to save persons in danger. When Pompeii--the Roman community destroyed by Mount Vesuvius in AD 79--was finally excavated, searchers found evidence of a dog lying across a child, apparently trying to protect the youngster. Perhaps few of the millions of dogs in the world may be so heroic, but they are still a source of genuine delight to their owners.

A dog fits easily into family life. It thrives on praise and affection. When a master tells a dog that it is good, the animal happily wags its tail. But when a master scolds a dog, it skulks away with a sheepish look and with its tail tucked between its legs.

People in the city as well as those in other areas can enjoy a dog. Medium-size or small dogs are best suited for the confines of the city. Large dogs need considerable exercise over a large area.

Dogs are not always well thought of, however. In recent years dogs in the city have been in the center of controversy. Some people have criticized dog owners for allowing their pets to soil sidewalks and lawns, although in some cities laws oblige owners to walk their dogs along street curbs. In turn, dog owners have argued that the animals serve as protection against vandals and burglars and thus protect their detractors as well as their owners.

When a person decides to own a dog, he should be prepared to care for it properly. For a dog to stay healthy it must be correctly fed and adequately groomed, and its medical needs must be met. For a dog to be well-mannered it must be properly trained. It should never be ill-treated or mishandled. Otherwise, it will bite in its own defense.

The wild ancestors of all dogs were hunters. Wolves and other wild relatives of the dog still hunt in packs for their food. Dogs have retained the urge to be with the pack. This is why they do not like to be left alone for long. Some breeds of dogs still retain the hunting instinct.

Dogs exist in a wide range of sizes, colors, and temperaments. Some, such as the Doberman pinscher and the German shepherd, serve as alert and aggressive watchdogs. Others, such as the beagle and the cocker spaniel, are playful family pets, even though they were bred for hunting. Still others, such as the collie and the Welsh corgi, can herd farm or range animals. Each of the dogs just mentioned is a purebred. A mongrel dog, however--one with many breeds in its background--can just as easily fit into family life.

Dogs have been with humans since prehistoric times. Over the years they have performed various services. They have pulled sleds over snowy tracts. They have delivered messages, herded sheep and cattle, and even rescued persons trapped in the snow. Dogs have served as a source of food, too. The ancient Romans are said to have prized certain kinds of dog stew. The Aztecs of ancient Mexico raised tiny dogs, thought to be the forebears of the chihuahua, to feed the large carnivores in the private zoos of the Aztec rulers. In the past dogs have even been worshiped as gods. Recently, they have been used in drug research, medical experimentation, and space science. Soviet scientists launched dogs into space to test the ability of mammals to survive the rigors of space travel before people were sent up.

Dogs are trained as guard dogs in peacetime by the United States Army and other military services. Because of their keen sense of smell, dogs are used by police at times to track down escaped prisoners. Law enforcement agencies also rely on the dogs acute sense of smell to uncover illegal drugs. And specially trained dogs serve as the "eyes" of the blind, guiding the steps of their sightless masters around obstacles and hazards.

狗是世界上最受欢迎的宠物之一。它通常仍然忠于一个体贴的主人,因为这个狗被称为人类最好的朋友。人们之间的阶级差别没有生活在狗的一部分。它可以是一个忠实的伴侣,无论是富人还是穷人。

狗驯化在人类历史的大多数时期,因此球员很多。故事被告知关于勇敢的狗,令人钦佩的战争或冒着生命危险拯救的人处于危险之中。当庞培——罗马社区在公元79年被维苏威火山——终于被挖掘,搜索者发现一只狗躺在一个孩子的证据,显然试图保护这个年轻人。也许一些世界上数以百万计的狗可能是英雄,但他们仍然是一个真正的喜悦主人的来源。

一只狗容易符合家庭生活。在赞美和感情。当大师告诉一只狗,它是好的,动物快乐地摇尾巴。但当主人骂狗,它潜伏了一个羞怯的外观和它的两腿之间夹着尾巴。

城市的人们以及那些在其他领域可以享受一只狗。中型或小型狗是最适合城市的范围。大型犬在大面积需要相当大的锻炼。

然而,狗并不总是值得思考的。近年来狗在城市里一直在争论的中心。有些人批评狗主人允许宠物土壤人行道和草坪,尽管在一些城市的法律迫使业主限制他们的狗沿着街道散步。反过来,狗主人认为,动物作为防范破坏者和窃贼,从而保护他们的批评者以及它们的主人。

当一个人决定自己的一条狗,他应该准备妥善照顾它。狗保持健康必须正确美联储和充分培养及其医疗需求必须得到满足。狗必须得到适当的训练表现得彬彬有礼。它不应该虐待或处理不当。否则,它会咬自己的防御。

所有的狗都是猎人的野生祖先。狼和其他的野生亲缘狗仍然集体觅食的食物。狗有保留的冲动与包。这就是为什么他们不喜欢独处太久。一些品种的狗仍然保留了狩猎的本能。

狗存在大范围的大小,颜色,和性情。一些,比如杜宾犬,德国牧羊犬,作为预警和积极的监督者。其他的,如小猎犬和可卡犬,好玩的家庭宠物,尽管他们的狩猎。还有一些,比如牧羊犬和威尔士科基犬,可以群农场或范围的动物。每个狗刚才提到的一个纯种。一条杂种狗,然而——有许多品种的背景——可以很容易适应家庭生活。

狗自史前时代以来一直与人类。这些年来,他们已经在执行各种服务。他们已经把雪橇在雪大片。他们传递的消息,赶羊和牛,甚至救出被困在雪地里的人。狗也有担任过的食物来源。古罗马人据说炖珍贵的某些种类的狗。古代墨西哥的阿兹特克提出了很小的狗,认为是吉娃娃的祖先,给阿兹特克的私人动物园大型食肉动物的统治者。在过去的狗甚至被崇拜为神。最近,他们被用于药物研究、医疗实验,和空间科学。苏联科学家发射了狗测试能力的哺乳动物生存的艰辛太空旅行之前人打发了。

狗是训练有素的警犬在和平时期的美国军队和其他军事服务。因为他们的敏锐的嗅觉,狗被警察有时用来追踪逃跑的囚犯。执法机构也依靠狗的敏锐的嗅觉发现非法毒品。和受过专门训练的狗充当盲人的“眼睛”,指导的步骤失明的主人在障碍和危害。

Looking ahead, and some are just a bump on the ground, large tracts of forest were cut down, into peoples lives in the wood products. It is only for their own interests, many animal it to become destitute and homeless. This is not a false illusion, this is the bloody facts.

Once upon a time, a large number of animals and plants in the world were destroyed, and many animals and plants are on the verge of extinction, which is why? This is because the man casually trees, destroy the ecological environment, this is the fundamental reason.

Land resource is one of the three major geological resources (mineral resources, water resources, land resources), is the most basic human production activities and labor objects. Human utilization of land reflects the development of human civilization, but also caused the direct destruction of land resources, which is mainly manifested as unreasonable cultivation caused by soil erosion, land desertification, land salinization of soil and soil pollution and so on, and the soil and water loss is particularly serious, today the world is facing a serious crisis. According to estimates, soil loss of the cultivated land is about 230 tons / year.

Some people think acid rain is a silent crisis, and in the history of the impact our most serious threat to the environment, is a look at the enemy. This is not alarmist. With the increase in industrialization and energy consumption, acid emissions are also increasing, they enter the air, after a series of role in the formation of acid rain.

今天，我看见了一幅漫画，上面画着：一片郁郁葱葱的森林，但是森林那一片的树木已经露出光秃秃的木桩，另一半的树木还在茁壮地成长，他们不只道自己长大后也会像它们那样，被人砍断。这时，来了一个人，他嘴里叼着一根烟，嘴上还说着：“这段木头一定有虫。”说罢，便拿起大斧头朝一棵树砍去。这时来了一只啄木鸟，落在那个人的脖子上，嘴上说着：“这段树里一定有虫。”还不时啄那个人的头。

这幅漫画让我想起了一个故事：森林王国失踪之谜，它讲述了这样一个故事：从前，有一个王国叫“森林王国”，在一个老国王的呵护下，森林里的一切都是那样的和谐。这里有充满生命力的植物，它们能阻挡风沙，调节大自然的温度，使生态得到平衡。但是，那个新草包国王却为居住高楼大厦，显示自已的“聪明”，而以惊人的速度砍伐树木，最后那个草包国王面对大自然的“雨怪”、“沙妖”、“雹魔”的报复，却束手无策，但他仍执迷不悟，竟然禁止种植小树苗，就这样黄沙把整个王宫连同这个愚蠢的国王一起吞没了，整个国王变成了沙漠。

读了这则小故事，我深受启发，我们不应该像草包国王那样为了显示自己的“聪明“而不顾生态平衡，最后导致了这个国王的毁灭。森林是居住在地球上的生灵不可缺少的朋友，她是“地球的肺”，可以吸收二氧化碳，产生人类生存必须的氧气。她是“地球天然的大水库”。那个砍树的人太可恨了，为了自己的利益而去砍伐树木，破坏生态平衡。我们要爱护森林资源，爱护环境，保护地球。

一天,小明和小红出来玩，看见小兰正在跳橡皮筋，但她把橡皮筋系在树上，小红说：“小兰给树带来了危害。”“是呀”小明说，“可是又有什么办法既不损坏树，又能让小兰专心地跳橡皮筋呢？”小红灵机一动，说：“用砖头！”“对啊，我怎么没想到呢。”小明说。

于是，他们俩便四处寻找砖头，好不容易找到两块完整的砖头，对小兰说：“你把橡皮筋解下来，系在砖头上，既不损坏树木，又能玩个尽兴。”“好吧。”小兰说。小明说：“咱们走吧。”

Although the world develops much faster and better, the resources on the earth get fewer and fewer.In order to protect them,something must be done.尽管世界发展得更快、更好，地球上的资源越来越少。为了保护他们，必须做些什么。

Save water. Water is the source of life. No water, no life. So its very important for us to do so.Not only should we protect drinking water and stop polluting it, but also make full use of it.节约用水。水是生命之源。没有水，就没有生命。所以这是非常重要的我们这么做。我们不仅要保护饮用水和停止污染，而且充分利用它。

Save electricity. It is crucial. We cant imagine what the life will be like without it.Everyone should do his best to save electricity. Dont forget to turn off lights or other electric machines when we finish working.节约用电。这是至关重要的。我们无法想象的生活就会像没有它。每个人都应该尽自己的最大努力节约用电。不要忘记关灯或其他当我们完成工作的电机。

Save forests. They are useful .Please stop cutting them down and use recycled paper instead. Make our world a green one to live in.拯救森林。他们是有用的。请停止切割下来，用再生纸代替。使我们的世界成为一个绿色的生活。

Recycle useful rubbish. Plenty of rubbish can be recycled like cans,paper, bottles, and so on. We can save resources in this way.回收有用的垃圾。大量的垃圾可以回收罐，纸，瓶，等。我们以这种方式可以节省资源。