英语作文动物狗【精彩20篇】

Many wild animals are facing the danger of extinction， because the environment that they are living in has changed greatly。 For example， with the developmet of cities， the using of insecticide and serious pollution， their living areas have become narrowcr and narrower。 Many of the wild animals， now are confronted with food crisis。 At the same time， man is killing off species just for getting their fur， skin， horns， teeth and meat。

In order to protect our resources of ecology， people should realize that the loss of any species is at least the loss of source of knowledge and a source of natural beauty。 There fore， measures of the following should be taken： pollution standards are made to keepdown poisons; killing off certain rare species is prohibited; national parks should be set up as wild life， reserves。

Only if we human beings take some drastic measures can wild animals be preserved。

引导语：关爱动物，人人有责。下面是小编为大家精心整理的关于关爱动物的英语作文范文，欢迎阅读！

一：Animals Need Protecting

Everyone knows animals are our friends. So we should be friendly to them. But some people kill the rare animals, such as pandas, golden monkeys and so on in order to get money. It will cause these animals to disappear soon. I think our government should punish those people severely who kill the rare animals. It is our duty to protect the endangered animals.

二：Animals Need Protecting

There are more and more endangered animals at present,so how to protect them has been our task of top priority . Its wrong for people to hunt animals for their meat and feather,for they are our good friends.We should protect them instead of killing them.Giant pandas,which are one of the endangered animals,live in the forests and live on bamboo lealves.They can just live safely in the natural protection zones.We should stop killing animal and protect them.

三：Animals Need Protecting

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.

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.

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.

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.

[关爱动物的英语作文

Not only we humans upon earth, there are lots of animals. Humans and animals are good friends, so we need to protect animals. There are many animals are endangered in the world, such as the giant panda, Chinese sturgeon, manchurian tiger, and so on. However, my favorite animal is the highest level of protection in our country.

Because of his long fat, very cute. The giant pandas main food is bamboo. But because people cut down trees, the giant panda food less and less, so we should protect trees. There are some animals, because they do not adapt to the environment, is nearly extinct. So we need to protect the environment, love the nature. Let us and animals can live harmoniously in the earth. Students, animal is priceless to human nature, is our friends of human beings. Their life is closely related to our life.

The mass extinction of animals can cause serious ecological imbalance, so that our human living environment is destroyed. Lets start from me, start from now, to protect animals. Let the world a better place!

地球上不只有我们人类，还有许许多多的动物。人类和动物是好朋友，所以我们要保护动物。世界上有许多动物都濒临灭绝，比如说大熊猫、中华鲟、东北虎等等。然而，我最喜欢的动物就是我国一级保护动物大熊猫。

因为他长的胖胖的，很可爱。大熊猫的主要食物就是竹子。但是由于人们砍伐树木，使大熊猫的食物越来越少，所以，我们要保护树木。还有一些动物，因为不适应环境，已经快要灭绝了。所以，我们还要保护环境爱护大自然。让我们和动物能够和谐地生活在这个地球。同学们，动物是大自然给人类的无价之宝，是我们人类的朋友。它们的生死与我们的生活息息相关。

动物的大量灭绝会造成生态的严重不平衡，从而使我们人类的生存环境遭到破坏。让我们从我做起，从现在做起，保护动物。让世界变得更加美好吧!

I love many animals. I love dog, cat, hamster, pig and elephant.

My favorite animal is a little rabbit. It is my pet, its name is Lily. Lily has a pair of long ears, its body is white, and its eyes are red.

It likes to eat carrot. It is very lovely, I like to play with it.

[介绍动物的英语作文

狗是人类早期从灰狼驯化而来的，驯养时间在4万年前至1。5万年前，是人类最早驯化的动物。据统计，世界上有犬种1400余种，其中定类的有500多种。世界名犬里收录的大约有240多种。最近的基因研究得出的大量研究结果表明，现存的狗有450种左右。

狗的五官像人般端正，四肢更是强健。它们走起路来，摇摇摆摆的，快活得不得了。一般情况下，狗的长度约八分米，其重量也不会超过35公斤……

狗的生性灵活，是一种惹人喜爱的动物。世界上几乎没有一只狗是痴痴呆呆的，更没有一只狗是不爱吃也不爱玩的。不但如此，狗的反应也十分敏捷。当看到有老鼠、虫蚁的出现时，狗便展示它自身的本领，快速地捕捉盯紧的“猎物”;在狗的视线范围内，几乎没有一只“猎物”能够脱离它的“手掌心”。

狗的食量不大，却很挑剔。狗一天的食量大约是人类食量的三分之一，只吃鱼、肉或是其它的骨头，蔬菜、水果大多数都不喜欢吃……

狗的智力在低等动物界中也是非比寻常的，是高等动物--“人类”智力的四分之一。通过人工训练的狗能做许多高难度的动作：在低空中极其准确地接住从较高空中掉下来的细微物品;单脚踮地，双手握住人类的手，像和人类打交道般……

Animals are the best friends of man who can all care for them? I am a favorite little animal, small animals are cute and naughty, like a naughty child.

I like the puppy, the puppy is very cute. I used to have a name: snow and snow to listen to the name to know is a lovely little dog, its hair like snow as white, with a pair of round black eyes, two ears in the head. Cute, but snow is also very naughty, then Ill tell you its naughty it!

One afternoon I came home from school, snow and snow as usual to pick me up, I and it walked on the stairs, to the stairs, it saw my hand bag, all of a sudden bite in the past, I chased it, while chasing Cried: "Snow snow to my bag back, hurry or else I want to teach you." Snow seems to understand, so obediently ran back, hand over the bag. Rub me a bit like me in the request of my understanding, I touched it, and it returned home.

Snow is very cute and very naughty. But I and it is a good friend, I like it snow snow.

If you ask me what my favourite animal.I can tell you pandas are my favourite.I like the pandas not only because they are one of the Chinas treasures,but also because they looks cute.

Pandas are very fat and hairy. They have two colours:white and black.The pandasd face,back and stomach are all white, their eyes nose legs and arms are all black.

The pandas like eating bamboo. Using the paws,he chew the bamboo very slowly with his mouth.

There are two pandas called tuantuan and yuanyuan will send to Taiwan.

我家有一个非常可爱的小狗，它叫欢欢。它之所以叫欢欢，不用我说，你就知道了吧。你猜对了，就是因为它非常淘气，所以我给它取名叫“欢欢”。

它拥有一身洁白的毛，非常光亮，让人看到就喜欢。在我们农村，几乎家家都有狗，但唯独我家狗最漂亮，所以也有人要我家狗，但我一率不同意。每当我和我的妈妈不在家，欢欢就一直陪着我爸爸身边。

它有时很顽皮。小狗在我家没多久的时候，我和欢欢很陌生。那天我回家才发现我把钥匙落在家里了，我只好跳门进去，我刚要进去的时候，小狗以为我是陌生人，就对我“汪”了两声。这一叫可把我吓坏了差一点从门上摔下去。

它有时也很文静。他文静的时候也是很少的，就是在你给它喂食儿的时候能听你的话，摆出一副很可怜的样子，让你不得不给它多点。给完之后，它不管三七二十一，就开始狼吞虎咽的吃起来。

我经常和它玩耍，玩的时候，我会捡一根细木棒，往天空一扔，在细木棒离地面还有半米高的时候，欢欢就会腾空跃起，叼住那根细木棒，然后把细木棒放到我的手上，它叼的很准，几乎每次都可以叼到细木棒，怎么样，它很厉害吧!

我很喜欢我的小狗，你呢?

The puppy home grow very cute， round head set with a pair of amber big eyes。 It has a powder doodle tongue， summer is always stretch out a large margin。 Its limbs strong and ZhaoJian is white。 Really cute。 One day， a small black dog chew bones， puppy immediately flee to rebound。 A little black dog a glimmer， let puppies flapping empty air。 Then， the puppy fiercely stand up， its body extension forward， sloping， tail， a pretty， "shout" to swoop in little black dog。 Black dog a strange call and puppy takes。 They are "bow—wow" monkey ShangCuan next leap up。 The puppy seize opportunity， ruthlessly put a little black dog legs bite， little black dog bellow out a cry and limped its tail between its legs down bone passed。 The puppy licked his body lie on the ground， and with relish eating "trophies"。

我家的小狗长得十分可爱，圆圆的脑袋上嵌着一双琥珀色的大眼睛。它有一条粉嘟嘟的舌头，到了夏天总是伸出一大截。它的四肢强壮有力，爪尖是白色的。真逗人喜爱。 有一天，一只小黑狗啃着骨头，小狗马上窜上去抢。小黑狗一闪，让小狗扑了个空。接着，小狗猛地站起来，前爪前伸，身子后倾，尾巴一挺，“呼”地向小黑狗扑过去。小黑狗一声怪叫和小狗厮打。它们“汪汪”乱叫，蹿上蹿下。小狗看准时机，狠狠地把小黑狗的腿咬了一口，小黑狗惨叫了一声，一瘸一拐地夹着尾巴放下骨头溜走了。小狗趴在地上舔着身子，又津津有味地吃着“战利品”。

小狗是人类的好朋友，很多人都非常喜欢小狗。你有养过小狗吗?如果要描写小狗，应该怎么写呢?下面就是小编给大家整理的写小狗的优秀作文精选，希望大家喜欢。

写小狗的优秀作文一

小狗在日常生活中。我根本没有观察过它，今天我就要当一回观察大兵。

首先小狗的爪子不怎么锋利，但爪子比牙齿锋利一些。说到锋利，它的牙齿到底有多锋利呢?我去测试一下吧。我给了它一个小东西，那个东西我可咬不开一点缝隙，看看小狗能不能咬开。过了一会儿，小狗“咔嚓”一声把那个小东西吃掉了。真是太不可思议了。它的毛摸着很舒服，就像摸着棉花一样舒服。小狗的尾巴很像一大丛狗尾草。小狗的眼睛特别有用，因为它饿了的时候用那会说话的眼睛望着我，好像跟我说:“主人，主人，我饿了，能不能给我东西吃呀?”我也只好喂东西给它吃了。

小狗睡觉的时候是爱趴着睡。小狗的耳朵很尖，它还没睡着的时候，只要你脚步较重一点地从它面前走过，它就会立刻张开眼睛。

它最爱吃的就是骨头了。当然也喜欢狗粮等食品了。有一次我捡了一个塑料做的骨头扔过去，它闻了一下就走了。小狗最爱跟我玩扔飞盘了。我把飞盘扔了出去，小狗在飞盘还没落地的时候，就已经接住小狗一见到我了就像我遥尾巴，一听到我的声音就来迎接我。小狗一见到陌生人就“汪汪汪”地叫个不停。

这就是我喜爱的小狗，这就是喜爱我的小狗。

写小狗的优秀作文二

今天，我回奶奶家观察了小狗，小狗可真可爱!

小狗的身子矮小，毛黄澄澄的，走起路来像一个滚动的小绒球;大大的眼睛像两颗宝石，湿渌渌的;趴在地上睡觉时，小耳朵耷拉着，看上去像一只大懒虫;它那条又细又短的小尾巴摇摇摆摆的，十分惹人喜爱。

小狗是人类的好朋友，这句话一点不错。有时你只要呼唤它一声，它立刻就会赶过来，绕着你的腿转，然后扑到你身上，用舌头舔你，用身子蹭你。有时你玩球时一不小心把球弄丢了，小狗就会跑过去，它的鼻子就像气味探测器似的到处找，不一会，小狗口里就叼着球回来了。

小狗的性格也是天真可爱。有时它跟小猫打斗，我就训斥他，无论怎样打它骂它，它也不叫，更不会咬你，就像一个做错事的孩子一样老老实实地呆着。

养小狗真好，还能节约粮食。每当我们吃剩的饭菜倒掉了一是觉得可惜，二是污染了环境，可是有了小狗就不一样了，它可以来吃剩菜剩饭，既环保，又充饥。它不但能帮忙看家，更像我的朋友一样与我分享快乐。

写小狗的优秀作文三

暑假的一天，我在楼道口发现了四只小狗。它们的个头那么小，像四只圆滚滚的肉馒头，可爱极了。我决定每天放学都去看看它们。

第二天，我兴冲冲地来到楼道口，发现有一只小狗已经死了。糟了，一定是没有人喂它们吃的。我难过极了，再也不想看到小狗死亡，于是，我决定每天都给小狗带狗粮来。就这样，我当了几天“代理狗妈妈”。

一天早晨，我走得太急，忘了带狗粮。我想回家拿，妈妈说：“放心吧，发现你没带狗粮，爷爷会帮你喂小狗的。”我只好去学校。这一天我过得忐忑不安，一放学就往家冲。冲到楼道口一看，我简直不敢相信自己的眼睛，小狗又死了一只!我的眼睛一下子涌了出来，我把剩下的两只小狗紧紧地抱在怀里，下定决心，无论如何都要收养它们。

经过我的一番“眼泪攻势”，妈妈总算同意放小狗进门。我给小狗取了名字，全身乌黑的那只叫孙小圣，灰色的那只叫镇元子。它们可爱极了，特别是见到食物的时候。只要我端着狗食盆叫它们的名字，它们就立刻“健步如飞”，冲到我面前，又是打滚又是摇尾巴。当我把食盆放下时，它们就展开了“狼吞攻势”，大吃大嚼。看到它们吃得津津有味的样子，我也很高兴，总是忘记妈妈“不要让它们吃得太饱”的叮嘱，忍不住又给它们添点儿。所以，如果现在你到我们家，就会看到它们像小猪一样“丰满”的身材啦!

写小狗的优秀作文四

外婆家有一只可爱的小狗。它的毛很光滑，乌黑发亮，眼睛圆圆溜溜的，像两颗黑珍珠，后腿长，前腿短，爪子也很尖，跑起路来又轻又快。

每次，我一回到婆婆家，这只小狗就会摇着尾巴一边汪汪地叫着，一边在我身上亲来亲去，向我表示欢迎呢。

小狗的警惕性很高，不管天有多黑，他都能看清周围的事物。有一次，天已经很黑了，有一个陌生人来外婆家，小狗看见了，就大叫起来，边叫边往那人身上扑去。我一看，就赶紧上楼叫婆婆，婆婆一看，原来是客人。小狗看着婆婆热情地招持客人，好像明白了什么似的，又好像给客人道歉似的，不停地拿舌头舔那人的裤腿。

小狗吃鱼还会吐刺呢。有一次，外婆给我炒了一盘鱼，我香喷喷地吃着，小狗蹲在我面前眼睛直勾勾地看着我吃，馋得一个劲地舔嘴唇，于是我就夹了一条给小狗，心想：扎你一回，看你还眼馋不。没想到，它吃得可香了，不一会儿，就把鱼给吃完了。我仔细一看，地上有一堆鱼刺，感到非常惊奇，原来这只小狗还会吐刺呀!

我想：多么神奇、可爱的小狗呀!

Animal Protection

Animal is the friend of mankind, is an important part of the natural ecosystem. It is human precious naturalresources. Protect animals to maintain natural ecological balance has important significance.

But now many animals are facing the danger of extinction.With the development of society, pesticide used and serious pollution, city sewage .The wild animal living area is becoming increasingly narrow. Many of the animal is facing a food crisis currently . Whats more, in order to obtain wild animal of precious materials, humans are killing animals.

In order to maintain ecological balance, we should take some effective measures to protect animals.We should develop pollution standards to reduce emission of toxic substances, prevent the killing of some rare animals strictly. We can also establish a national park as a wild animal protection area. The most important thing is to improve people s knowledge of animal care.

Let us join hands in creating a harmonious coexistence of human and animal beautiful homes!

Ask me what is like small animals, that I will not hesitate to answer - my little black dog!

The little black dog temperament is very docile, very human nature.

I get along with it for a long time, in love, it seems very understand me. Whenever I am angry, it squatted beside me quietly motionless and seems to want to accompany me through the sad time. I am happy, it will run up to and around me, "an auf" cried, very agreeable.

The little black dog she is cute!

In black, shiny hairs, eyes with two white spots, like two white beads. On the head and on his thighs hair is very long, like a horse head to the ground. Straight ear, as if time in listening to what passed around. Thick and long broom tail swing, from time to time as a cleaner for free! More funny is that it always speaks with a wet nose toward me, like a sick child, seems to be very poor, in fact, I know it really want to play with me. In the invitation to me!

The puppy experience dangerous also have several times.

Is the first time fell into the river, fortunately, was found to pull up, feed it to take medicine, good soon. And on several occasions by poison poison dog several times, but also by early treatment, will have to escape. From then on, it can sniff out those toxic food, what food non-toxic. Later, our dog never in poison. It very sharp!

The little black dog is my favorite animals, because it brings me a lot of laughter! Do you like my what?

问我喜欢的小动物是什么，那我会毫不犹豫的回答——我家的小黑狗!

小黑狗的性情很温顺，很通人性。

我和它相处久了，产生了感情，它好像很理解我。每当我生气的时候，它就静静地蹲在我身边一动也不动，似乎想陪我度过那难过的时间;我高兴的时候，它就会围着我跑来跑去，“汪汪汪”地叫着，很讨人喜欢。

小黑狗可逗人喜欢了!

一身黑亮亮的绒毛，眼睛上面有两个白点，颇像两颗白色珠子。头上和大腿上的毛很长，像马鬓一样拖到地面。直楞楞的耳朵，好象时刻在倾听着周围有什么动静。又粗又长的扫帚尾巴不时摇摆着，像一个免费清洁工呢!更逗人的是它总翘着潮湿的鼻子向着我，像一个生病的孩子，看起来似乎很可怜，其实，我知道它很想和我玩。在向我发出邀请呢!

小狗的经历危险也有几次。

第一次是掉进了河里，幸好被人发现拉了上来，喂给它吃药，不久就好了。还有几次是被毒狗的人毒了几次，幸好也被及早治疗，才得脱险了。从那以后，它就能嗅出那些食物有毒，哪些食物无毒。后来，我家的狗再也没中过毒。它够机灵吧!

小黑狗就是我喜欢的动物，因为它给我带来了许多欢声笑语!你们喜欢的动我是什么呢?

狗是一种忠厚老实的动物，它从不会嫌穷爱富，不像猫一样，谁家暖和，谁家好吃的多，就往谁家跑，所以要问我最喜欢什么动物，我会肯定地说：“小狗”！

狗的种类有很多，如哈巴狗、金丝狗……，它们的颜色不同，有纯白色、纯黑色等，我最喜欢黑白相间的哈巴狗。

记得有一次，我们家门口有一只狗悲惨的叫着，那只狗好像是只流浪狗，我可怜它，想把它抱回家，可是妈妈不同意，我只好回家了。但是我刚打开家门，那只狗就如闪电般地溜进了我们家，妈妈想赶它走，我挡在妈妈面前，不让她赶，妈妈无奈之下只好不赶了。

我想给这只小狗给点吃的，就在这时，屋里飞来一只苍蝇，我举起塑料瓶扔过去，不料，没打中，出师不利！我急忙去捡，这时，这只小狗像离弦的箭一样冲过去，叼起瓶子，跑到我面前，把瓶子交给我，此刻，我就越喜欢这只小狗了。

这只小狗以后就和我一起玩耍。当我写作业时，它总要爬到桌子上，摇摇尾巴，看着我，真可爱。每天我放学回家，一进门小狗就亲昵的跑来用身子蹭蹭我，好像在说：“欢迎你回家”。

在散步时，小狗总跑在我前面，一会儿看看这，一会儿看看那，离我远了，它就停下来等会我，有时像个调皮的孩子一样，还跟我捉迷藏呢……

这只小狗成了我心中最好的朋友!我很喜欢它！

[描写动物狗的作文

三年级二班陈玥樨

小姨养了两只狗，我非常喜欢它们俩。

一只狗叫COCO，它身上是棕红色的毛一卷一卷的，圆溜溜的眼睛水灵灵的；眼睛下有一个灵敏的鼻子，可以闻出上千种味道；一张又可爱又小的嘴巴经常舔我。它四肢灵活，跑得非常快，但有一次它的后肢右脚受伤了，我担心它好久呢！它吃东西时非常乖巧，它只要把狗粮吃完就会吐着舌头，趴在地上休息。它的外表很漂亮，所以我最喜欢它。

还一只狗叫KIMI，它全身黑色，毛也是一卷一卷的，我连它的眼睛的边都找不到了！鼻子也是黑色，这些都是黑色的，太难找它的部位了。它夏天吐着舌头，冬天它卷成一个球似的，但我会看见它在微微的发抖。它还可以站起来两只脚走路，简直酷毙了，所以我也很喜欢它。

COCO的性格像一个害羞的小公主，温顺、听话、聪明。时常缩在主人的怀里，主人走到哪里跟到哪里的COCO就像个淘气的小跟班。

而KIMI则像一个勇敢的小勇士，活泼、好动，什么事情都要去尝试一下才能满足它的好奇心！撒欢捍候可以一下子窜到主人的怀里撒娇。

两只小狗都是那么的可爱，我最喜欢它们跟在我身后在草地上欢腾的样子，打闹、疯跑、跳跃，然而它们现在和我远隔千里，我时常想念它们，等我长大以后，也要养两只可爱的小狗。

When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bears spend the summer fasting. At least, thats whats supposed to happen. As the planet warms, the warmer ice-free season is getting longer and longer. So whats a hungry bear to do?

Scientists once thought that polar bears might survive by supplementing their pinniped diet by turning to terrestrial foods like snow geese, their eggs and caribou.

"Weve had this debate in the literature about whether terrestrial foods are nutritionally relevant to polar bears during the on-land season when the ice has melted."

University of Alberta biologist Nick Pilfold.

"And weve known for a long time, going back to research in the early 70s, even going to back to early explorer logs, that polar bears will consume terrestrial based foods. But the debate was always whether those foods actually add up, energetically." In other words, do these substitutes provide enough nutrition to make up for the lost seals?

To find out, Pilfold and his colleagues estimated the weight lost each day by polar bears in the wilds of western Hudson Bay during the ice-free season, when they could ostensibly be chowing down on terrestrial foods. Then they compared that to the weight lost by bears that are temporarily held in Manitobas Polar Bear Alert Program.

While captive, the bears do not eat. They drop about one kilogram each day. But the wild bears, who had access to the Arctic snack bar, lost the same amount of weight each day. The results are in the journal Physiological and Biochemical Zoology.

"Which is really saying that the terrestrial foods do not have dense enough energy to offset the mass loss. So this idea that bears can just switch from eating sea ice–based food to land food and thats going to help supplement against longer ice-free seasons, that really doesnt show up in the data."

The problem is that polar bears evolved to rely on the marine diet.

"The food on land is protein and carbohydrate based, and the food the polar bears really focus on is fat. Fat is the name of the game for these bears; theyre highly adapted to absorbing that fat into their system and putting it onto their body as body mass, so they can fast on it later on. And the only thing thats going to provide them with that type of fat are marine mammals. And they can only access those marine mammals when theres sea ice."

Adult males can go eight months without food. But younger, sub-adult bears, which are no longer nursing and must hunt, cant last as long without sea ice. So as the Arctic warms, younger polar bears will disproportionately die out. Leaving the species survival in doubt.

北冰洋在秋季结冰以后，北极熊就会出发去寻求它们最喜欢的食物：富含脂肪的海豹和胡子海豹。海冰在夏季开始融化断裂。这使北极熊在夏季无法吃到美味的海豹，所以它们进入禁食期。至少，情况应该是这样。但是由于地球变暖，温暖的无冰季节越来越长。那饥饿的北极熊要怎么办?

科学家曾经认为，北极熊可能会转向陆地上的食物来补充它们对鳍足类动物饮食的需求，进而生存下去，这些陆地食物包括雪雁、雪雁蛋和北美驯鹿。

“文献中有过这类辩论，即在寒冷融化时陆地食物是否能满足北极熊的营养需求。”

尼克·皮尔福德是加拿大阿尔伯塔大学的生物学家。

“通过上世纪70年代初的研究，还有早期的探险者日志，我们很早以前就知道，北极熊会以陆地食物为食。但是辩论的焦点在于，这些食物是否能增加北极熊的能量。”换句话说，这些替代食物能否为北极熊提供足够的营养，弥补不能进食海豹带来的损失?

为了解开这个疑惑，皮尔福德及同事对西哈德逊湾荒野地区的北极熊在无冰季期间每天失掉的体重进行了估算，从表面上看，北极熊在这段时间食用了陆地食物。随后，他们将这一数据与通过马尼托巴北极熊预警计划暂时捕得的北极熊所失掉的体重进行了对比。

在被关期间，北极熊不吃东西。它们的体重每天大约下降1公斤。虽然野生北极熊能享用北极“小吃”，但是它们的体重每天也同样会下降1公斤。这一研究结果发表在《生理学和生化动物学》期刊上。

“显然结果表明，陆地食物不能为北极熊提供足以抵消大量损失的能量。所以，北极熊可以从食用海冰下面的食物转向食用陆地食物，并帮助它们对抗日益延长的无冰季这个观点，并没有在这项数据中得到证明。”

问题是，北极熊进化成了依靠海洋食物的动物。

“陆地食物以蛋白质和碳水化合物为基础，而北极熊需要的食物以脂肪为主。脂肪是这些熊真正需要的东西;它们高度适应的情况是，将脂肪吸收进它们的系统中，然后把这些脂肪放在身上以增加体重，这样它们之后就可以依靠这些脂肪来度过禁食期。唯一能提供给北极熊这种脂肪的就是海洋哺乳动物。但是它们只能在有海冰时食用到这些海洋哺乳动物。”

成年北极熊可以8个月不进食。但是小一些的未成年北极熊已经不再被哺育，它们必须要去猎食，可是它们不能在漫长的无冰季期间一直不进食。所以，随着北极地区变暖，较小的北极熊将会大批死亡。这使这些物种的生存成为问题。

dogs

Dogs usually refers to the dogs, also known as dogs, a common canine mammals, is a close relative of the wolf. Often referred to as "human best friend" is also the highest rate of keeping pets. His life was about ten - more than three decades, in the absence of an accident, the average life span of small dogs to be longer.

I like dogs, because they are man s good friends. They can do many helpful things to us, such as guarding our houses, greeting guests, helping the police, and so on. Some trained dogs can even lead the blind people and save people s lives. So they re treated as our family members. I hope someday dogs will be in great harmony with human-beings.

我喜欢狗，因为它们是人类的好朋友。他们可以为我们做很多有用的事情，如，保护房子，问候客人，帮助警方等等。一些受过训练的狗甚至可以引导盲人、拯救人们的性命。所以他们都被当做是我们的家庭成员。我希望有一天狗能与人类和谐共处。

我最喜爱的小动物是一只小狗，它全身长满白色的毛，像一团棉花糖;眼睛是圆溜溜的，像两颗大宝石镶嵌在一对弯弯的眉毛下;耳朵是半圆形，鼻子是黑色，尾巴短短的，很可爱。

我给它爱吃的骨头，它会一块一块，一小段一小段地啃。它啃完骨头后，就会汪汪地叫几声，好像在说：“小主人，谢谢你。”每当我去上学，她总是会送我一段路程，直到我假装生气打它两三下，它才乖乖地跑回家去。它不但会送我去上学，还喜欢和我一起赛跑，跑得十分快，有时，把我落了一段路程。平时，它看起来很胆小，但看见陌生人时，却又不失威猛地睁着双眼紧盯着陌生人的一举一动，关键时还会大声叫。

它真是一只机灵又尽忠职守的小狗啊!

我放学回家时，可算是小狗最开心的时候。只要小狗在家，我在放学回家的路上离家门口还有一段路总可看见小狗在门前等着我。它看见了我，就会摇着尾巴往我这里飞奔而来，然后在我人前人后蹦来蹦去。这么机灵的小狗能不讨人喜欢吗?

我很希望把这只小狗养得白白胖胖，因为它真的非常惹人喜爱。

A tiger is a kind of catamount animal.It looks like a cat,but much bigger than a cat.A tiger is very ferocious and it eats mainly meat.It has yellow and black streaks all over its body and it looks very beautiful.Its tail is long and strong and it can hit its quarry dying.

Tigers live in the thick forests and small animals in the forests are tigers food.

During the past years,many forests have been cut down and the living conditions of the tigers are becoming worse and worse.There are fewer tigers left in the world now.Tigers are the animals of the world,and they should have their own living spaces.We must do our best to protect the tigers and their living environment.

My family a few years ago to keep a puppy, it is long with a golden hair, a small nose, a pair of black pearl-like eyes, we call it "golden hair", it looks very cute!

In the morning, I got up to rinse, wash my face, and the puppy ran hard on the little tail, and around my side, and kept licking my trousers as if she were saying, "Good morning, small the host."

After dinner, I went to the neighborhood to play. Out of the door, I saw my dog at home in front of the neighbors, my friend is squatting on the ground with his familys dog playing it. I walked quietly, shouting behind my friend, he was shocked. I stood next to the "hehe" smile. Friend said: "scary." His puppy raised his head, stared at two round eyes, as if to me, said: "What do you scare my master, he did not call you." My puppy Hear a friend s dog called me a few times, quickly jumped to it, as if to say: "Do not say my master, is teasing your master to play.

A Sunday, I want to sleep a Lanjue, but my puppy I do not know what time into my room, it hard to pull my trousers, I wake up from a dream. I climbed up and looked at the cute puppy, and it was "barking" to me, as if to say, "The lazy man does not get up quickly and the sun is sunbathing."

This is my home dog, cute it!

我喜欢的小动物，最喜欢的小动物要数我家的那条小黑狗了。

我家的小黑狗可逗人喜欢啦!一身黑亮亮的绒毛，眼睛上面有两个白点，颇像两颗白色珠子。头上和大腿上的毛很长，像马鬓一样拖到地面。直楞楞的耳朵，好象时刻在倾听着周围有什么动静。又粗又长的扫帚尾巴不时摇摆着，像一个免费清洁工呢!更逗人的是它总翘着潮湿的鼻子向着我，像一个生病的孩子，看起来似乎很可怜，其实，我知道它很想和我玩。在向我发出邀请呢!

小黑狗的性情很温顺，很通人性。我和它相处久了，产生了感情，它好像很理解我。每当我生气的时候，它就静静地蹲在我身边一动也不动，似乎想陪我度过那难过的时间;我高兴的时候，它就会围着我跑来跑去，“汪汪汪”地叫着，很讨人喜欢。

小狗的经历危险也有几次。第一次是掉进了河里，幸好被人发现拉了上来，喂给它吃药，不久就好了。还有几次是被毒狗的人毒了几次，幸好也被及早治疗，才得脱险了。从那以后，它就能嗅出那些食物有毒，哪些食物无毒。后来，我家的狗再也没中过毒。它够机灵吧!

我喜欢我家的小狗。我希望它永远伴随我左右，陪我快乐成长!