写保护老虎的英语作文优秀20篇

It is suggested that people have been aware of the issue--lack of preservation for endangered spieces, animals and plants, but as you see , they placed little efforts to cope with the problem.despite the versatility and intricacy of instruments , I would pore over some of the most striking ones and offer alternatives afterwards.

这表明人们已经意识到这个问题——濒危物种保护的不足，动物和植物，但正如你所看到的，他们把小的努力来应对problem.despite的多样性和复杂性的工具，我会在一些最引人注目的和提供选择之后。

One of the major reasons , causing peoples inocence of protecting animals, is that the government did not function well as an educator, arosing peoples initiative in shielding wild animals, which led to the consequence that people do not know their responsibility to prevent animals from dangers, and specific knowledge in guarding them. what is equally important as the reason mentioned above is that media did not meet our satisfaction to inform the mass of the emergency which is crutial in arousing peoples conciousness to keep animals safe.

其中一个主要原因，引起人们的灵感保护动物，是政府不作为一个教育工作者的作用，调动人的主动性保护野生动物，其中LED的后果，人们不知道他们的防止动物从危险责任，和看守他们的具体知识。同样重要的是上面提到的原因是媒体没有我们满意通知紧急，唤醒人们的意识使动物安全是重要的质量。

In spite of the serious problem, measure leading to profound improvement still can be taken. owning to the fact that funds are insufficient in some developing countries, developed countries or international organizations should shoulder more burden -- finacing them in order to capacitate them to accompolish the protection of animals. at the same time, education in telling people the way to make animals harboured ought to be focused on, thus resulting in peoples better awareness in the camouflage of our planets cutest creatures.

尽管在这个严重的问题，导致深刻的改善措施仍然可以采取。由于资金不足，在一些发展中国家，发达国家和国际组织应承担更多的负担——融资以使他们实现保护动物。同时，在告诉人们如何使动物怀有应该集中在教育，从而导致人们更好的认识在我们星球上最可爱的生物的伪装。

It is belived by me that if correct actions are taken to preserve animals, any kind of them will be far away from extinction forever.

这是我认为，如果采取正确的行动来保护动物，任何一种他们将永远远离灭绝。

Environment for us, it is very important, its like a big umbrella, zhefengdangyu for us to protect our homes, if left the magic umbrella, that our home will be like the Sahara desert, a lifeless, desolate. So I want to give meaning to the world, let us together to protect the environment!

Now our side, however, the environment is worsening, I once saw a man on the side of the road just lost a piece of paper, I was very sad, think if everyone throw a piece of paper, then the world will be what are the consequences? Is terrible, and the world will become a white tips, more think more terrible, I quickly pick up the pieces of paper, thrown into the garbage can. At another time, I saw on TV a report about the environment: fujian on the other side of the river water turbidity is not clear, the fish died in the river, floating in the river every fish mouth blowing, the river still waving white trash, have small bags, candy. The scene is really horrible. Improvement in living standards of people, and their environmental protection consciousness is on the decline. And those without morality of tree, they may have thought about the benefits of trees give us? Tree for we pay so much! So many trees for our block of sandstorm and fearful tornado, these trees should have quietly thoroughly self-reflection, if there are no trees, our living environment is what? Visible at the moment we bad environment, also issued a warning to us, remind us take good care of the environment is urgently needed! I think good care environment, everyone duty, so we have to start from now, start from the side, do not spit everywhere, dont throw the paper scraps, less use notebook, can when checking the finished with the book, read the newspapers to practice calligraphy. To protect the environment as the most important work, set up environmental protection consciousness, the guardian to protect the environment.

"To protect the environment, everyone duty." I am going to put this sentence in mind, take this sentence as a seed, I will use attentive to watering it, let it grow, let the "care for the environment, everyone duty" this sentence. I believe that as long as we work together, in the near future, our environment will be getting better and better.

环境对于我们来说，是非常重要的，它就像一把大伞，为我们遮风挡雨保护我们的家园，如果离开了这把神奇的伞，那我们的家园就会像撒哈拉大沙漠一样，一片死气沉沉，荒无人烟。所以我要向全球发出意示，让我们一起保护环境吧!

然而现在我们身边，环境越来越恶化，有一次我看见一个大人在路边随便丢了一张纸，我非常伤心，心想如果每个人都丢一张废纸，那么这个世界会是什么后果呢?真是太可怕了，整个世界就会变成白色的垃圾站，越想越可怕，我急忙把这个纸片捡起来，丢进垃圾桶里。还有一次，我在电视上看见一篇有关环境的报道：福建那边的江水浑浊不清，江里的鱼都死了，浮在了江面，每条鱼的嘴里都吐着白沫，江边还飘着白色垃圾，有小食品袋，糖果皮。这一景象真是惨不忍睹。人们的生活水平在提高，自身的环保意识却在下降。还有那些没有道德的伐树者，他们可有想过树给我们带来的好处呢?树为我们人类付出了那么多!那么多树为我们挡住袭来的沙尘暴和可怕的龙卷风，这些伐树者真应该静静的好好的反省一下，如果没有了树，我们的生活环境又是什么样子呢?可见目前我们环境的恶劣，也是在向我们发出了警告，提醒我们爱护环境刻不容缓!我认为爱护环境，人人有责，所以我们要从现在做起，从身边做起，不要随地吐痰，不乱丢纸屑，少用本子，用完的本子可以当验算本，看完的报纸可以练习毛笔字。把保护环境当做最重要的工作做下去，树立环保意识，做环保守护者。

“保护环境，人人有责。”我要把这句话铭记在心，把这句话当作一颗种子，我会用细心去浇灌它，让它茁壮成长，让“爱护环境，人人有责”这句话传递下去。我相信，只要我们齐心协力，在不久的将来，我们周围的环境一定会变得越来越好。

The Marine life environment is a complex system including seawater, sea water content and suspension, seabed sediment and Marine life.The abundant biological resources, mineral resources, chemical resources and power resources of the sea are the indispensable resources of human beings, which are closely related to the survival and development of human beings.

The main objective of Marine conservation is to protect Marine life resources so that they are not depleted for sustainable use.Special priority should be given to protecting Marine life that is valuable and endangered.According to the relevant departments of the investigation, due to overfishing, accidental killing of non-target to allow hunting of Marine, coastal tidal flats in the engineering construction, mangrove deforestation, widespread Marine pollution, at least 25 in the worlds most valuable fisheries resources exhausted, whales, turtles, manatees and many other Marine animals are in danger of extinction.With the expansion of Marine development, the potential for greater damage to Marine biological resources is expected.

Marine conservation of the first task to stop the excessive use of Marine biological resources, secondly we must protect Marine habitats or niches, especially their migratory, spawning, feeding, avoiding DiHai coast, beaches, estuaries, coral reefs, to prevent the heavy metals and pesticides, oil, organic matter and eutrophication of nutrients, such as pollution of the sea.To maintain the renewable capacity of Marine biological resources and the natural purification capacity of seawater, maintain the balance of Marine ecology and ensure the sustainable development and utilization of the sea.

Water is the source of life.We cant live without water.However,with the increasing population and industrial development,water pollution has become a serious problem.Large amounts of wastewater go into rivers and seas directly without being treated,which can be dangerous to people.Also lots of people pay no attention to saving water in daily life,while in some place water is badly needed.

Its time for us to take some measures to improve the situation.Factories should treat the wastewater before letting it go into rivers.We can play a positive role in saving water.For example we can reuse the water for wishing rice to wash vegetables and then clean a mop.

Once man did not have to think about the protection of his environment。

There were few people on the earth， and natural resources seemed to be

unlimited。

Today things are different。 The world has bee too crowded。 We are using up

our natural resources，and polluting our environment with dangerous chemicals。 If

we continue to do this， human life on earth will not survive。

We realize that if too many fish are taken from the sea， there will soon be

none left。 Yet，with modern fishing methods， more and more fish are caught。We

know that if too many trees are cut down， forests will disappear。 Yet， we

continue to use powerful machines to cut down more and more trees。 We see that

if rivers are polluted with waste products， we will die。 Yet， waste products

are

still put into rivers。

We know that if the population continues to rise at the present rate， in a

few years， there wont be enough food。What can we do to solve these

problems?

If we eat more vegetables and less meat， there will be more food available。

Land for crops feeds five times more people than land where animals are

kept。

Our natural resources will last longer if we learn to recycie them。

The world population will not rise so quickly if people use modern methods

of birth control。

Finally， if we educate people to think about the problems we shall have a

better and cleaner planet in the future。

Panda is our country’s treasure, we should protect it. nowadays, we see from the TV that panda is less than before, it is not only because of the damage of the environment, but also the weakness of the panda. Everybody loves panda, it is so lovely, a panda has two black eyes, it is very lazy, it likes sleeping all the time. When we see its round body shape, we can’t help loving them. In order to see the lovely animal, we need to protect them. We must protect the environment, like not to throw the rubbish away, not to cut down the trees. We condemn such behavior that killing the animals. Protecting the animals is everybody’s job.

熊猫是我们国家的珍宝，我们应该保护它。现在，我们可以从电视上看到熊猫比以前少，这不仅因为环境的破坏，还因为熊猫自身的脆弱。大家都喜欢熊猫，它很可 爱，熊猫有两只黑色的眼睛，很懒，总是在睡觉。当我们看到熊猫圆圆的身形时，忍不住喜欢它们。为了看到这些可爱的动物，我们需要保护它们。我们必须保护环 境，比如不随处扔垃圾，不砍伐树木。我们谴责杀动物的行为。保护动物，人人有责。

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!

Protecting the Environment

In the last several decades, our earth has been extremely polluted, such as air pollution, water pollution, noise pollution and so on. In recent years, the extreme weather becomes more and more frequent. Winter gets colder and summer becomes hotter and it rains more frequently. All of these warn us that protecting the environment is a serious and emergent event. As our general people, we should build proper lifestyle. We should pay attention to water and light saving. When we go out, we should firstly choose the public transportation. The most important is that we must realize that we can do a lot of things to protect our environment. Its our duty to make our home better. Let’s change from ourselves.

在过去的几十年里，我们的地球已经极度污染，比如大气污染，水污染以及噪音污染等等。近几年，极地气候越来越频繁。冬天越来越暖，夏天越来越热，还经常下雨。所有的这些都警示我们保护环境是一件严肃紧迫的事。作为普通老百姓，我们应该形成合适的生活方式。我们应该注意节约水电。出门的时候我们应该首选公共交通。最重要的是我们必须意识到我们可以做很多事情来保护我们的环境。使我们的家园变得更美好是我们的责任。让我们从自己开始改变。

[初中英语作文及翻译：保护环境

We should all know that everybody is responsible for protecting the environment!

We live the earth is very fragile, the earths natural resources is limited, if we protect the environment and the earth from now on, we live the earth will become more beautiful!

Protecting environment starts from me from the us side of small start!

To protect the environment is to protect the earth or indirectly protect us humans, if the environment is destroyed, then to the survival of our homes is likely to be swallowed up by the desert!

I am here is appealing to people around the world to protect the environment is everyone duty! If we are in such environment, our home is about to be collapsed. Then we will have no place, everybody is responsible for protecting the environment, start small make up,

If we do not litter, spit, etc.

Everybody is responsible for protecting the environment!

我们大家应该都知道保护环境人人有责!

我们生活的地球是很脆弱的，地球上的自然资源也是有限的，如果我们从现在开始保护环境和地球的话，我们生活的地球一定会变的更美好!

保护环境从我做起从我们大家身边的小事做起吧!

保护环境就是保护地球还是间接的保护我们人类自己，如果环境被破坏的话，那么我们赖以生存的家园就很有可能被沙漠吞噬 !

我在这里向全世界的人们呼吁 保护环境人人有责 ! 如果我们还在这样的破坏环境的话，我们的家园即将遭到崩溃 。 那时我们便没有去处了， 保护环境人人有责 ， 从小事开始作起吧，

如我们不乱扔垃圾， 随地吐痰等。

保护环境人人有责!

导语：小时候的我们都喜欢吃糖，可是糖吃多了，我们的牙齿就不好了，我们要保护好我们的牙齿，下面是yuwenmi小编为大家整理的相关英语作文，欢迎阅读与借鉴，谢谢!

My mother always tells me not to eat too much candy, but I just couldn’t control myself. Once, I felt my teeth hurt and did not feel like eating. My mother took me to see the dentist and I was so afraid. The doctor used his machine to fix my teeth, I was terrified and cried. Since then, I realize the importance of taking care of my teeth. So I do not eat the candy too often. I will wash my teeth before I sleep, what’s more, the ice food and the sour food will be rejected by me. My friends envy me for having the white teeth, for I look so healthy and beautiful.

【参考译文】

我的妈妈总是告诉我不要吃太多的糖果,但我就是无法控制自己。有一次,我的牙齿很疼,不想吃东西。妈妈带我去看牙医,我很害怕。医生用他的机器修理我的牙齿,我吓坏了,哭了。从那时起,我意识到保护牙齿的重要性。所以我经常不吃糖果。在我睡觉之前我要刷牙,而且,我不吃冰的食物和酸的食物。我的朋友羡慕我有洁白的牙齿,因为我看起来很健康又美丽。

Directions: Please write a short essay entitled How to Protect the EnvironmentYou should write at least 120 words following the outline given below.

1．近年来地球环境日益恶化，人类面临很多突出的环境破坏问题 2．环境恶化的原因有哪些。

3．提出改善环境的建议。

The global is more and more warmer.The river is more and more dirtier.In the past years,the environment was more and more worst.The human beings are facing many pollution problems that are standing out.

We always see that the river is covered with white rubbish,the water is against clean. Roads are dirty,too.I can imagine the future that is covered with rubbish.People through rubbish away into the river.The industry let off sewage。People on the car through the rubbish away form the window of the car.Rubbish is waving。People enjoy using refrigerator that is the cause of that the global is more and more warming.We should get together to do something to improve our environment.We can plant so many trees that the temperature of the global will lower.Trees will reduce the crash of the global.

Punish the person who through away the rubbish around the roads instead of the rubbish bin.

Stick out to do the things above,the environment will be better and better.

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 angelsfrom the heaven, which bring us endless comfort and pleasure.

I have been apanda lover since my childhood.

Panda is so lovely that brings fun to peopleand they are regarded as the treasure of our country.

Unfortunately，such a rare species is now faced with the danger ofbeing extinct。What I am eager to do is to raise people’sawareness of animal protection and appeal to more people to care for our earthcompanies.

翻译：

我认为，没有什么能够像关心动物一样让我快乐。不管我去到哪里，在做些什么，我会时刻牢记动物是来自天堂的天使，带给我们无尽的舒适和快乐。

我从小开始就是一名熊猫爱好者。熊猫是如此可爱，给人们带来乐趣，而且它们是我国的国宝。不幸的是，这种稀有物种现在正频临灭绝的危险。 我想要做的是提高人们保护环境的意识，呼吁更多的人关心我们地球的伴侣。

[保护熊猫的英语作文4篇

假如你是李华，你的笔友Mike从电视上得知前段时间北京多个地方出现雾霾(haze)，非常担心，写E-mail询问有关情况，请回复。回复应包括以下要点：

1.实况描述;

2.对生活造成的影响;

3.成因简析与教训;

4.你个人的情况。

One possible version:

Dear Mike，

Thank you very much for your concern. Last month several places in Beijing were blanketed(覆盖)with thick yellow fog. Everything around disappeared from our sight. Some highways were closed. Traffic jams were commonly seen in the streets. Many people, especially children and se{C}{C}

{C}niors, even found it difficult to breathe. As a result, local hospitals were crowded with people who had problems with their noses and lungs. Part of the cause was the dry weather, but the severely damaged environment contributed a lot to this nightmare. Personally I didn’t get any health problems in the haze because I stayed mostly indoors. But to make a significant change we really have to do more to protect our environment. To live a bette{C}{C}

{C}r life we have to push on with the economy, but it wound be meaningless if we have to achieve it at the cost of our breathing air.

Regards!

Yours,

Li Hua

One day after school, I carry bag cheerfully ran to the door.

Havent that take the door, can smell a stinking smell, turned out to be someone throw rubbish in the beside a little tree, I hurriedly will cover your nose, really want to breath ran to the third floor, left the flashpoint. But when I saw the red scarf before the bosom, it seemed to be in severe criticism I. I quickly ran home, the bag would not have time, picked up the broom and CuoJi to ran downstairs.

Ill use a broom and wielding a few times, this style was scared away a lot of flies, little fly, destroy the rubbish is much more relaxed, I put the rubbish swept into all CuoJi, in the trash.

I thought that has been accomplished, but, a few of wrappers are stuck on the ground, the part that the dense "" seems to be said to me:" ha ha, see what you can put me?" Had, water a blunt again and not line, I immediately end the basin of water, it worked, all dry I stamped out quietly, and finally restored the former days the ground clean.

Although the work of the accident was too tired to my waist sour backache, but think I for the earth environmental protection out of a force, let me very happy, as long as we care for the environment, the world will become more beautiful!

一天放学，我背着书包高高兴兴地向家门口跑去。

还没进门，就闻到一股臭气熏天的怪味，原来是有人把垃圾丢在了一颗小树旁，我赶紧将鼻子捂住，真想一口气跑到了三楼，离开了这个是非之地。可当我看到胸前的红领巾时，它仿佛在严厉的批评我。我急忙跑回家，书包也来不及放，拿起扫帚和撮箕向楼下跑去。

我先用扫帚使劲地挥舞几下，这招式果然吓走了不少苍蝇，少了苍蝇的捣蛋，消灭这些垃圾就轻松多了，我把垃圾全扫进撮箕里，倒入垃圾桶。

我以为已经大功告成了，可没想到，几张糖纸还粘在地上，这些“顽顾份子”似乎在对我说：“哈哈，看你能把我怎么办?”有了，用水一冲再扫不就行啦，我立马端了盆水，这招果然奏效，一下子全都被我消灭的干干静静，地面终于又恢复了往日的洁净。

虽然这次意外的劳动累得我腰酸背痛，但是想着我为地球环保出了一份力，让我十分高兴，只要我们大家爱护环境，世界一定会变得更加的美好!

1. To cherish the enviroment is to love ourselves.

爱护环境就是爱护我们自己。

2.Water is the source of ourlives

水是生命之源。

3.I make an urgent appeal that measures should be taken to cope with the situation

我急切呼吁应该采取措施改变现状。

4.Our government is doing its best to take measures to fight against pollution.

我们政府正努力制定措施与污染作斗争。

5.We are sure that well win the battle.

我们坚信我们能赢得战斗。

6.Its high time that we should protect our enviroment from being polluted.

是时候我们应该防止环境污染了。

7. Keep our mountains green，the wate clean，and the sky blue.

使我们山更绿，水更清，天更蓝。

8.However，natural resources are not inexhaustible.some reserves are already on the brink of exhaustion.

然而自然资源并不是无穷无尽的，一些储量已经到了穷尽的边缘。

9.If we do something with no thought for the furture . The later generation would be in danger.

如果我们不为将来考虑，后代就会受到威胁。

10.Our earths days are numbered without urgent help.

没有及时的帮助我们的地球就屈指可数了。

11(Sth.)are bound to generate severe consequences if we keep turning a blink eye to them.

如果我们继续睁一只眼闭一只眼的话，……一定会有恶劣的后果。

Oh behalf of the University Students’ Union， I， the Chairman of the Union ， am earnestly calling for yo ur active participation in our environmental protection campai gn. It is the duty of every global villager; man just can not sustain his glorious c i vilization 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. Let’s join our h ands and take action immediately.

哦代表大学生联盟,联盟的主席,我认真要求字数积极参与我们的环保信缘gn。全球每一个村民的责任;人就不能维持他的光荣c vilization没有有益的环境,这将有可能只有让人相当大的努力来保护环境。

你珍惜precio我们志愿者的机会在我们的共同努力,环境保护?这是一个很好的一个不容错过的青春热情,下星期六,我们的大学是运行一个宣传活动,倡导环境保护整个城市。大学学生会将负责招募志愿者。让我们加入h and并立即采取行动。

[英语作文如何保护环境

Prtect Envirnent Treat the Earth Well

As we all nw, there is nl ne earth. And the earth is ur he. I can’t iagine if the earth disappears, hw can huan exists.

We can’t live withut the earth, s please treat the earth well.

Nw the air is nt clean and fresh. The s is nt ver blue. But wh? Because an peple defrest and pllute the river. We can’t see anials pla in the frest and fish swi in the river.

If we eep this scence fr a lng tie, the end f the wrld will be cing.

S hw can we prtect envirnent? Let e give u se advice.

First, we plant trees. Trees can give us the fresh air and absrb the carbn dixide.

Secndl, we can tae buses t schl r wr, drive less. The exhaust gas fr cars will pllute the air, and it’s nt gd fr ur health. It’s bad fr the earth, t.

This is advice.

Tda is the Wrld Envirnent Da. Let’s prtect envirnent and treat the earth well tgether.

保护环境善待地球

众所周知，我们只有一个地球。地球是我们的家园。我无法想象，如果地球消失了，人类该怎样生存。

我们的生活不能离开地球，所以，请善待地球。

现在的空气不是很新鲜，天也不是那样湛蓝。这是为什么？因为有很多人乱砍滥伐，还污染河流。我们在森林里看不见小动物玩耍，也看不见小鱼在水里游泳。

如果长时间都是这个景象，世界末日就会来临。

那么，我们怎样才能保护环境呢？让我来给大家一些建议吧。

首先，我们可以植树。树木可以给予我们新鲜的空气，还可以吸收二氧化碳。

其次，我们可以坐公交去上学或上班,少开车。汽车排放的尾气会污染空气，它对我们的身体没有好处，对地球也没有好处。

这就是我的建议。

今天是世界环境日，让我们一起保护环境，善待地球吧！

[高中保护环境的英语小作文

There have been many environmental protection problems in recent years . One of the most serious problem is greenhouse gas emissions have caused climate change ,At the same time ,lots of trees have been used and wasted.So our earth is becoming warmer and warmer . .That brings us illnesses and death.

Luckily ，,many countries have done a lot to stop environmental pollution。Its the most important in the environmental protection today.

In my opinion ,on the one hand ,through education we should make people realize that destroying the environment means destroying ourselves,..On the other hand ,we should try to do something to produce fewer greenhouse gas emissions.

In a word .we must develop low-carbon economy

现在这些年已经有很多关于保护环境的问题。其中最严重的一个问题就是温室气体排放已经造成了气候改变。同时，很多树木被砍伐掉了，而且大量别的资源已经被用完或者浪费。所以我们的地球变得越来越温暖(热)。这样带给我们的是疾病和死亡。。

幸运的是，很多国家已经采取了很多措施来控制环境污染问题。如今，这是最重要保护环境的措施。

我认为，一方面，虽然教育我们应该让人们意识到破坏环境就是伤害人类自己。另一方面，我们应该尽力做一些事情来控制温室气体增长。

总之，我们必须发展低碳经济。

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。

ladies and gentlemen, i want to say something about trees. as we know now trees are very important to human beings. first of all, they benefit our health.

they send out oxygen for us to breathe. we cant live without trees.secondly, trees can beautify our environment.as trees are so important, we must do our best to protect them. we must enforce the tree protection laws. we must plant as many trees as possible.only in this way can we live happily in the beautiful world.

[保护环境为题目的英语作文