关于描写小动物英语小作文(精选19篇)
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1000描写秋景的英语
全文共 1428 字
+ 加入清单I like the spring of all things recovery, but also like the summer sun like fire, but also like the ice and snow in the winter, but I prefer the fruits of the fall everywhere.
Autumn girl marching light footsteps came to earth, she used her sleeve a brush, brush away the summer heat, brought the cool autumn. She gently blow, grass put on the golden clothes. The leaves are like a small plane, like a small butterfly dancing in the air. The leaves fell into the ground and turned into a yellow carpet. Maple forest in the maple red, overlooking it, it is like a fire of the ocean. The corn was lifted by the waves, the rice was over the waist, the corn was pleased to reveal its "gold ingot", to show people its style; soybeans happily shook the bell, it seems to tell people: "I Mature, come and take me home! "There are sorghum lifting the victory of the torch ... ... they let the farmer uncle bright smile. Garden chrysanthemum opened, it opened so bright, red, yellow, white, pink ... ... they red like fire, white like snow, powder like Xia, yellow like orange ... ... colorful, dazzling. Orchard Banana like a boat, like a curved moon hanging in the treetops; persimmon like a red little lanterns; orange like a small ball hidden in the leaves; grapes like a string of agate hanging in The pomegranate smiles out of the teeth; the apple is blushing and there are ...
Autumn is really beautiful! I love the colorful autumn.
更多相似作文
篇1:初中描写雨的英语作文
全文共 454 字
+ 加入清单When the summer comes, the weather is so hot, it is rarely to see the rain. Today, when I wake up, I find the weather is chilly, it is going to rain. I am so happy, I miss the rain so much. Suddenly, the rain drops from the sky, I ran out of the house, looking at the sky, dancing with the rain. I feel so cool, then all my weariness has gone.
当夏天到来的时候,天气很热,很难见到雨。今天,在我起床的时候,我发现天气有点凉,准备下雨了。我很开心,我很想念雨。突然,天下起了雨,我跑出房子,看着天空,与雨共舞。我觉得很凉爽,我所有的倦意都消散了。
篇2:三年级英语动物日记
全文共 806 字
+ 加入清单I like the program" Animal World" . First of all, I like animals, especially small animals. Secondly, the host is able to make the program lively and interesting. Thirdly, through this program I know a lot of things that I havent known before. I gain some knowledge about animal life, such as, different lives of various kinds of animals, the relationship between people and nature, people and animal, and the importance of animal protection.
I want to say that animals are part of nature as we are. They can not be separated from the humans. We must keep nature in balance.
Please give your love to animals. Stop killing them.
我喜欢“动物世界”这个节目。首先,我喜欢动物,尤其是小动物。第二,主持人把节目办得既生动又有趣。另一方面,通过这个节目,我知道了许多以前不知道的关于动物生活方面的事情,例如不同动物的不同生活习惯,人与动物之间、人与自然之间的关系,还有保护动物的意义。
我想说的是,动物是自然的一部分,它们与人类不可分割,我们一定保持生态平衡。
请把你们的爱给它们吧,不可以杀害它们。
篇3:描写我的中国梦英语作文
全文共 839 字
+ 加入清单Over the past 100 years, the national revival as the Chinese peoples pursuit. In Yanan, is the leadership of the Communist Party of China National Peoples war shrine, national revival of the leaders in this map out a strategy. Time of change has left a string of visible footprint: the fight against SARS, the ruling idea practice people-centered, leaders and people in distress, won the peoples love and support. Make a spurt of progress of the Chinese economy, important resolutions to improve the socialist economic system of some problems, the cornerstone of a national revival, let me realize the whole nation of truth, to realize the younger generation to shoulder the historical responsibility and the responsibility of national rejuvenation. Also let us see the hardships course of country forward, also see today a powerful china.
篇4:介绍小动物英语作文
全文共 342 字
+ 加入清单My favourite animal is fish. Because they are very interesting. There are many kinds of fish. They are liveing in water very free. They are very colorful, some fish are red, some fish are white, and some fish are gold... So I like them very much !!!!
我最喜欢的动物是鱼。因为他们是非常有趣的。鱼的种类非常多。他们是在水中自由自在的生活。他们是五颜六色的,一些鱼是红色的,一些鱼是白色的,一些鱼是黄金色的……我非常喜欢它们! ! ! !
篇5:描写真正的朋友英语
全文共 727 字
+ 加入清单We all like to make friends, because no one can survive without a friend. If you ask someone how many friends do they have, most will answer a lot. Indeed, we make friends in different stage, even we are old, we still make friends. But not all friends are as honest as they are, some friends we made since we are young, some are just meet a couple of times and we don’t know much about them. The former are real friends, while the latter are not true friends. What is the real friend, a real friend is someone who you can talk about anything and can be show up the moment you need. Other friends are just for drinking and eating, they will not help you if you are in trouble. When we make friends, the real one is what we need.
篇6:关于介绍动物的英语作文
全文共 3686 字
+ 加入清单我们每个人都有自己喜欢的动物,那么,关于介绍动物的英语作文应该怎么写?今天小编为你整理了关于介绍动物的英语作文,希望对你有用。
The snake is a long and thin animal that lives in graor other dark places. A snake has no legs or feet, but it can move very fast on its stomach. Snakes usually have green, yellow or black skins, which make them difficult for their enemies to find them.Some kinds of snakes live in water. They can swim as freely as fish.
Snakes are cold-blooded animals. In winter they hibernatein holes which are narrow enough only to hold the snakes bodies. The snakes can sleep through a whole winter without eating and moving. They can not feel any pain. The hibernation period lasts about five months. When spring comes, the snakes come out and begin their normal life.
Snakes can take many things as food, such as mice, sparrows, frogs,birds eggs, pests and so on. People sometimes can see a snake eat a sparrow. First it moves close to the sparrow, then it puts out its tongue and brings the sparrow into its mouth and swallows it, which makes a lump in the snakes body. After some time the lump disappears.
As snakes are dreadful-looking, people are afraid of them. Many people drive them away whenever they see snakes. But in Chinese fairy tales, snakes are by no means bad. They seem to have human feelings. They can change into pretty girls. People like and respect them. The most well-known is the story about the White Snake and the Blue Snake.
In fact, snakes are not as dreadful as they look. They can help us to kill mice and pests. They can provide us with delicious meat. Their blood is a good drink. Poisonous snakes are especially useful. We can make valuable drugs with them.
Panda is one of the scarcest animals. People in the world like it very much. there used to be many pandas in China long ago. As the balance of nature was destroyed and the weather was getting warmer and warmer, pandas became less. But at present, the number of pandas is increasing year by year. there are now so many pandas that some are being sent to other countries so that people there can enjoy them.
Nowadays, the biggest nature park for panda in China is in Sichuan. there is a research centre for nature and wild life there. Scientists hope that one day they will have enough pandas to be set free and let them live in the wild again.
My favorite animals are swans.they are white.they can swim very well.I think they look like a beautiful girl in a white dress.they have a pair of wings and they can also fly well.I believe they are angles from the sky.they bring us love and make us happy.they are always friendly to us.We cant hurt them,because they are our friend.I love them!I like dogs,too.they are not beautiful,but they are the best friends.they keep the thieves away.Dogs have the best listening and eyes.they can hear in the nosiy,see in the dark.If we are in danger,they will help us at once.And they dont mind their lives.So,I love them.
Elephant is the largest animal on land today. It weights some ninety kilograms and is about one metre high when born. When it is 12 years old, it studs over three meters and does not grow any more. Elephant is usually grey in color, having a long trunk with large ivory tusks protruding from each side of its mouth. Usually moving in groups and caring for each other, Elephant is know to be a very and gentle creamre. For many years people have used the strength of these poweful animals to move trees and heavy logs. Elephant has been and is a vital tool for people to do many things that would normally be imposs-ible. Elephant is and will continue to be one of the greatest creatures man has ever come into contact with. Its size. beauty, and power willforever be useful to man.
[关于介绍动物的英语作文
篇7:描写动物的英语作文带翻译
全文共 1439 字
+ 加入清单Dogs, along with cats, are thought to be as the most favored as pets in America today.?This wonderful animal is valued for their companionship, protection and friendship they bestow to their owners. So it is hardly suprising to find dogs or cats on television shows and movies and who could not forget Lassie, one of the most famous canine of all time.?
For the wonderful companionship this pet gives, it is vital the owner does his or her share of responsibilities that comes on owning a dog.?The owner has the obligation to make certain that their pet receives adequate attention and affection, adheres to a nutritious diet, have regular visits to the vet for a check up or for shots and a plenty amount of exercise to keep them healthy and mentally alert.
Although it takes time and effort to care for your dog, the rewards ultimately pay off.? In return for their owner caring efforts, the dog will grant them unwavering loyalty, their affection and most important of all, the desire to please you.?This is probably the reason why people sometimes prefer this exquisite creature than their own and for years to come canines will remain people favorite pet.
狗,猫,被认为是最受欢迎的宠物在今天的美国。这个奇妙的动物是价值的陪伴、保护和友谊他们给他们的主人。所以不奇怪发现狗或猫在电视节目和电影,谁不能忘记姑娘,最有名的狗。?
本宠物给的陪伴,至关重要的是老板他或她分享的责任,拥有一只狗。业主有义务确保他们的宠物获得足够的注意和感情,坚持一个营养的饮食,定期去看兽医检查或照片和足够的锻炼来保持健康和精神警觉。
虽然要花时间和精力去照顾你的狗,回报最终还清。以换取主人关心努力,狗会给予他们坚定的忠诚,他们的感情和最重要的是,希望你。好吗?这可能是为什么人们有时比自己更喜欢这种细腻的生物,多年来狗仍将是人们最喜欢的宠物。
篇8:描写秋天的英语
全文共 1030 字
+ 加入清单Autumn with a golden, walked the pace of light quietly came to earth.
Lawn on the maple on the floating a few slices of yellow with red leaves, like many birds in the fly, ah! The original is the autumn leaves to a long wings.
A group of geese fly south, they were made into a "person" word, for a while and made a "one" word. The aunt of the trees on the slope of the maple aunt and aunt Liu Shu took off the green blouse; pine grandpa but still wearing a green blouse; chrysanthemum sister is open to the wind; the ground a small move a piece of West, not as lush as spring, not like summer Green. To look at the city slope of the children are wearing plush clothing.
Orchard, fruitful, Begonia fruit shake it with a small round face, smiled at you nod; red Yan Yan seems to squeeze the fat doll together, unplug the green leaves, laughter to look out ... ...
Wangcheng slope of the foot of the mountain is a golden field, rice yellow, like a layer of golden carpet, peasant uncle wiped sweat, thinking: a year of labor and harvest!
篇9:保护动物的高中英语作文
全文共 1553 字
+ 加入清单我们要保护小动物,特别是小鸡这类弱小的动物,因为小鸡早晨可以叫我们起床,可以生一个又一个圆圆的的鸡蛋,还可以提供鸡肉给我们吃。
We need to protect the small animal, especially this kind of small animal chicken, because chicken morning to wake us up, can have a round egg, can also provide for us to eat chicken.
有一次,我和妈妈上菜市场,听见一位老奶奶在喊:“卖鸡了,今天的鸡又肥又嫩!”妈妈说:“今天,我们买一只鸡回家,炖汤喝。”我说:“好吧。”可又想了想:如果我们吃了鸡,那么就吃不到鸡蛋了,就对妈妈说:“不行,吃了鸡就没有鸡蛋吃了。”“傻孩子,你瞎操什么心啊!”妈妈不由分说地把我拉到卖鸡的那边。卖鸡的老奶奶正在杀鸡,只见她拔下鸡脖子上的毛,拿刀用力地在鸡脖子上划了几下。血喷向了四周,鸡挣扎了几下就死了。“太残忍了,我不要吃鸡!”我向妈妈大声的抗议。“好吧,不买了,我们就去买点蔬菜吧。”也许妈妈也觉得残忍,就同意了。
One time, my mother and I heard the food market, an old woman shouted: "chicken, chicken fat and tender today!" Mother said: "today, we bought a chicken soup to drink at home." I said: "OK." But think again: if we eat chicken, so cant eat the egg, the mother said: "no, not eat chicken egg to eat." "Silly boy, what do you care ah!" Mother allowing no explanation to put me into the chicken. The old woman was a chicken, she pulled out the hair on the neck, a knife in the neck with a few strokes under. Blood sprayed around chicken, struggled and died. "So cruel, I dont eat chicken!" I asked my mother loudly protested. "Well, do not buy, we went to buy some vegetables." Maybe mom was cruel, also agreed.
假如我们的生活中没有了动物,世界就会变得很孤独。我们要保护动物,从自身做起:少吃肉类食品,少穿皮衣毛衣;看见别人欺负动物,要勇敢地站出来劝说他们。
If we live without the animal, the world will become very lonely. We must protect the animal, start from their own: eat less meat, less wear fur sweaters; see others bully animal, we should stand up to persuade them.
保护动物,人人有责!
Animal protection, everyones responsibility!
篇10:描写动物声音的
全文共 539 字
+ 加入清单奇异莫测的大自然中,各种各样的声音交织在一起,构成一曲美妙绝伦的自然交响曲.在这雄浑壮观的交响曲中,有一种声音是我的最爱,他时如悠扬婉转笛声,时如惊涛骇浪,这便是雨.
小时候的我是不喜欢雨的,因为雨让我联系到了泪,雨似乎会影响人的心情,每逢下雨,那沉闷的天气,阴霾的天空,泥泞的土地,令人格外烦躁,每当下雨,我便躲在家中睡觉,以躲避那讨厌的天气.现在想想,那是真是好笑.
长大了,我爱上了雨,雨声在听觉上总是一种美感,疏于打梧桐也好,骤雨打荷叶也罢,韵律都清脆可听.但我最喜还是夏日的雨.
起初,雨不大,叮叮咚咚,好像无数珍珠落到玉盘上.尤其是敲在屋瓦上的古老的音乐,似乎柔和而又铿锵,似乎远远又逼近.重重轻轻,密密细细,点点滴滴,仿佛俞伯牙《高山流水》中的沉吟.似水柔情,雨仿佛在诉说着婉转的心声.
雨越下越大,大得砸在梧桐叶上啪啪作响,房檐上飞流下来的水嘈嘈切切,清脆悦耳,真可谓“大珠小珠落玉盘”,使人心旷神怡,偶尔来阵风,树枝便扭着身躯,叶子呼呼的响,挤出了千万点水珠,飞落而下,与檐下的滴水一唱一和,创作一曲大自然的交响曲.
下着下着,雨渐渐小了,雨渐渐恢复了原来的样子,豪迈激越仿佛一去不复返,雨又回到淅淅沥沥的样子.
看着这变幻莫测的雨,我不禁联想了很多.
篇11:描写小动物的作文300字
全文共 329 字
+ 加入清单我的小狗长得白白的,个头大大的,一身毛摸起来很光。
只要我一回到家小狗就会在我身边转圈,小尾巴一摇一摆的,吐着舌头舔我的脚,要么就叼住我的裤子,好像让我抱一样。我不高兴的时候,它呢,又好像能懂似的,汪汪地叫,哄着我,逗我开心。
它每次都得等我喂才吃东西。有一次,我去旅游的时候,我把狗粮放到它的饭盒里,我们就走了,它自己在家里呆了几天,可是当我们回来的时候,它一点也没吃,我让它吃的时候它才吃。还有一次,我把它让我哥养几天,我回来的时候我哥说:它什么也没吃。
它吃饭的时候很可爱,我叫它吃的时候,它马上就过来吃了,而且吃得很快,吃一会儿歇一会儿,休息的时候就来找我玩。
它睡觉的时候耳朵可灵敏了,只要听见有人过来它就叫,像一个忠诚的士兵。
这就是我的小狗,你喜欢它吗?
篇12:描写动物的
全文共 686 字
+ 加入清单喜爱的小动物当然是猫了,我家中就有一只小灰猫,十分可爱。
灰色的毛,远远望去,就像一个绒球。蒙着透明薄膜的眼睛,好似两颗黑珍珠,轻轻闪烁着。白白的,毛绒绒的小爪子,犹如四团正在滚动的小雪球。走起路来屁颠屁颠的,像个顽皮的小孩,别提有多可爱了!
一日,我在房间做作业,小灰猫悄无声息地走了过来。或许是因为它走路没有声音吧,我跟本就没有发觉它已经走进来了。突然,它纵身一跃,竟跳到了写字桌上,“喵——呜”,“喵——呜”地对我叫,吓了我一跳。我知道,它这样叫,就是说明它肚子饿了。
我立即放下手中的笔,跑到厨房,盛了一盘子的猫饲料给小灰猫吃。小灰猫看了我一眼,用头顶了一下我的膝盖,表示感谢。接着就埋头啃食猫饲料。我看着它,两颗尖尖的牙露在外面,“咔咔咔”地咬食着食物,两片小爪子还时不时地拍一下盘子,那滑稽的样子真是可爱,真惹人喜欢。
我们的小灰猫特别怕冷,一到冬天,就喜欢窝在棉垫里睡上一天,是一只小懒猫。我罚它起来走一走,它就垂着眼皮,一副没睡醒的样子,摇摇晃晃地走,像一直弱不禁风的小猫。可恶,还在偷懒!我这样想着。
无奈,我抱起小灰猫,拿起它平常睡觉时盖的小棉被盖在它身上,然后把它放在我腿上,轻轻地抚摸它那柔软而又舒适的毛。它也很调皮,老是用它的前爪来拍打我的大腿,还时不时地用头蹭我的手臂、肚子。它就这样一直在我的怀中嬉闹,直至在我的怀中睡着。
它睡着了,温顺地躺在我的怀里,像一个熟睡的婴儿,显得那样地娇小、可爱。我再次抚摸它的皮毛,轻轻拨动它的胡须,它萎缩起来,像一个害羞的小精灵。如果你见了,一定会觉得它是那样地可爱。
这就是我家的小灰猫,一只天真可爱,顽皮淘气的小灰猫。
篇13:2024描写奶奶的英语
全文共 512 字
+ 加入清单My grandmother is sixty-two years old.
She is healthy so that she walks around often. In the morning, she goes to buy food in the market early. There are several old grannies going with her. In their opinion, it’s a kind of exercise, because walking is important to their health.
Besides, my grandmother is very active and easygoing. She makes many friends near my home, from her peer to the little babies. She always laughs and makes others happy. I think my grandmother is so lovely that I want to stay with her.
篇14:保护动物英语
全文共 951 字
+ 加入清单There used to be a lot of tigers. They used to live in the woods and mountains. However, people are cutting down trees and destroying their homes. There are fewer and fewer tigers out there. It is very important to protect the tigers. So, we should protect their homes.
以前有很多老虎。他们住在森林和山里。但是人们在砍伐树木而且毁坏他们的家园。那里有越来越少的老虎。保护老虎很重要,所以我们应该保护他们的家园。
Animals are close friends of humans. In particular, the existence of rare animals, the whole world has become very colorful.so we should protect the animals as possible we can.
I have recently heard that rare animals in zoos have even suffered from harm, it shocked me deeply. Incident stems from some people is not enough awareness of animal protection and anima indifference.
Bearing in mind the protection of rare animals are the responsibility for each of us, we should publicize its meaning, and to take effective measures.
I think in the near future the world will be more beautiful with our efforts.
篇15:描写冬天的作文英语
全文共 392 字
+ 加入清单This morning the outside under the large snowflakes, I just woke up from sleep, suddenly heard someone outside shouting: “ snow, snow. &rdquo, my brother and I hurried out of the door, and the ground was white. The cotton snow fell on the ground, as if we had worn a white cotton padded coat on the ground.
We together make a snowman, snowball, snowball … … playing awfully. Im so happy today!
篇16:去参观动物园的英语作文_动物类英语作文1800字
全文共 1753 字
+ 加入清单Today is Sunday. Its sunny today . I go to the zoo with my mother. I can see many animals . There are tigers ,lions ,pandas ,snakes and many more. Look ! The pandas are over there . Theyre from China . Look at the baby panda ! Its climbing trees. How cute it is ! I love pandas.
Next, we go to see the lions .The lions are so strong . Their mouths are too big. The tigers ae next to them. They are from Asia. They are yellow. At last,we go to see the monkeys . Some are climbing moutains , some are eating bananas . THey re so much fun !
I see many animals at the zoo and I m so happy today!
去参观动物园的英语作文2
last week I went to the Xiangjiang Zoo in Panyu.with my family. The zoo was very big and very beautiful , the zoo has a lot of animals , panda,lion,tiger,snake,elephant,fox Collected By Panda ws very cute and very fat , but it was not my favourite animal. Lion ws very strong , but it wasn t my favourite animal either, because it wasn t very handsome.
Tiger ws very strong and very handsome , it s my favourite animal, because it s very strong and very handsome. I feel very happy !
去参观动物园的英语作文3
The zoo provides the animals the comfortable and safe living conditions that can not be found in other places.
If the animals get hurt or ill, certain people will take care of them to prevent futher danger caused by the diseases.
Good opportunities for the people in the city especially those children who dont have the chance to set foot in the wild world.
Watching the animals in the zoo may give the parents a good chance to teach their children to love the animals and the world.
The parents can get the children know more about the animals in the zoo by watching listening even smelling instead of just looking at the dull pictures in the books.
篇17:小学生描写动物的作文:小狗
全文共 457 字
+ 加入清单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?
篇18:写濒临危机动物的英语作文北极熊
全文共 3755 字
+ 加入清单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。
篇19:关于动物的英语
全文共 673 字
+ 加入清单A little monkey picks up a pumpkin and wants to take it home.But the pumpkin is too big.The monkey cant take it home.
Suddenly he sees a panda riding a bike towards him. He watches the bike. "l have a good idea. I can roll the pumpkin. It likes a wheel."
So he rolls the pumpkin to his home. When his mother sees the big pumpkin, she is surprised and says, "How can you carry it home?" The little monkey answers proudly, "l cant lift it, but l can roll it." His mother smiles and says, " What a clever boy!"
一只小猴子拿着一个南瓜想带回家,但是南瓜太大,猴子不能把它搬回家。
突然,它看到一只熊猫骑车向它走来,他看着自行车 “我有一个好主意,我可以滚动南瓜,就像一个轮子。”
于是,他推着南瓜回家了。当他的母亲看到大南瓜,她很惊讶地说:“你怎么把它搬回家的?”小猴子得意地回答,“我不能抬起它,但可以推动它。”他的母亲笑着说,“真是个聪明的孩子!”