写动物的英语作文

2021-12-26 动物类英语作文

  在日常的学习、工作、生活中,说到作文,大家肯定都不陌生吧,作文是人们把记忆中所存储的有关知识、经验和思想用书面形式表达出来的记叙方式。一篇什么样的作文才能称之为优秀作文呢?以下是小编帮大家整理的写动物的英语作文8篇,欢迎大家分享。

写动物的英语作文 篇1

  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, that's what's supposed to happen. As the planet warms, the warmer ice-free season is getting longer and longer. So what's 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.

  "We've 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 we've 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 Manitoba's 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 that's going to help supplement against longer ice-free seasons, that really doesn't 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; they're 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 that's going to provide them with that type of fat are marine mammals. And they can only access those marine mammals when there's sea ice."

  Adult males can go eight months without food. But younger, sub-adult bears, which are no longer nursing and must hunt, can't 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。

写动物的英语作文 篇2

  Once upon a time. There was a house. Beside the house there was a bird cage. One day a cat went to eat the bird, So the cat jumped and hit the bird cage. The bird cage fell down to the ground knocking the bird cage‘s door open. The bird then flew away. So the cat started to chase the bird and the dog chased the cat. However the bird flew on top of the tree.

  So the cat started to climb the tree and the dog barked at the cat. Before the cat could reach the bird, the bird flew away. this caused the cat to fall out of the tree.

  The dog then ran away, The bird quickly flew back into his cage and the man from the house carried him safely home.

写动物的.英语作文 篇3

  There are all kinds of animals in the world . My favorite animal is rabbits. It has two long ears, a pair of red eyes, and a short tail. It likes jumping. It likes eating carrots and cabbages. It is one of the world's most lovely animals.

  世界上有各种各样的动物。我最喜欢的动物是兔子。它有两个长长的耳朵,一双黑眼睛,和一个短短的尾巴。它喜欢跳来跳去。它喜欢吃胡萝卜和白菜。它是世界上最可爱的动物。

写动物的英语作文 篇4

  A trip to the zoo

  to the zoo

  Today is Sunday. It's 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 . They're from China . Look at the baby panda ! It's 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!

  去动物园

  今天是星期天。今天天气晴朗。我去和我妈妈去了动物园。我可以看到很多动物。有老虎、狮子、熊猫、蛇和许多更多。看!大熊猫们在那里。他们来自中国。看那个婴儿熊猫!这是爬树。多可爱啊!我喜欢熊猫。

  接下来,我们去看狮子。狮子是如此强大。他们的嘴太大。老虎ae旁边。他们都来自亚洲。他们是黄色的。最后,我们去看猴子。有些是攀登山峰,一些人吃香蕉。他们都太好玩了!

  我看到很多动物在动物园里,我太高兴了!

写动物的英语作文 篇5

  I get early last Sunday.I take a bus to the zoo with my parents.We see many kinds of animals there,like elephants,pandas,lions,tigers … Some of them are very cute,but some are ugly.Some are scary,but some are friendly.My favorite animal is the panda.It is very cute and shy.My father takes a photo for me with the panda.I am tired when I get home,but I have a good time in the zoo.

  I got up early last Sunday.I took a bus to the zoo with my parents.We saw many kinds of animals there,like elephants,pandas,lions,tigers … Some of them were very cute,but some were ugly.Some were scary,but some were friendly.My favorite animal is the panda.It is very cute and shy.My father took a photo for me with the panda.I was tired when I got home,but I had a good time in the zoo.

写动物的英语作文 篇6

  Elephant. It is the reason that the nostrils are tender and tender. It's like worms fear into the nostrils, so when it sleeps, always put the nose up high, sometimes simply put the nose into the mouth gently with.

  Dog. When you go to bed, you always keep one ear close to the ground. This is because the ground sound much faster than through air, to the ear to can call to the distant sound of the slightest movement, sleeping dogs wake up. So, in the event before the earthquake, when people are not what a dog, often with a sound and agitated, kept jumping at.

  Cattle and sheep. The mouths of the sleeping cows and sheep are always chewing. In the past, they didn't chew enough when they were eating grass during the day, so when they were sleeping at night, they could chew them again and then swallow them in the stomach. This phenomenon is called ruminating.

  Mandarin Duck。 They are regarded as symbols of love, and they are very loving between "couples". During the daytime they together, to go to bed at night, the male right left masked female, the female is in the left right concealed male, described as "Tongzhengongmian".

写动物的英语作文 篇7

  keeping a dog at homeMy dog is named Peter by my father. Peter is a little fat with white and black hair fat in a pleasant and attractive way just like a little milk cow.

  Although because we keep it at home Peter brings too much trouble to me and my family overall it is very funny to keep lovely Peter.

  Peter has its own house at the corner of parlor. It has stay in my home for two months but it seems that it doesn't like sleeping itself and also being alone.

  Every day when I come back from outside it welcome me and then follow me every where.At first everwhere can be seen its big small shit and it used to bark at night.

  Now it has many good habbits. I like it very much my sweetheart.

写动物的英语作文 篇8

  There is a butcher Tianwan home, where the burden of the meat has been sold out, leaving only some of the bones. Two wolves encounter on the road, followed closely by Zoulehenyuan.

  Afraid of the butcher, pick up a piece of bone thrown in the past. A wolf bones have been stopped, along with still another wolf. Butcher and pick up a piece of bone thrown in the past, the bones after the wolf came to a halt, but the bones have been the first wolf Yougen up. Bones have been thrown over, the two together, like the original as a wolf to catch up.

  Butcher is distress, I am afraid together before and after the attack by a wolf. There are wild to see Michael playing a game, the masters of the field to stack firewood in the wheat field to fight, into a hill-like coverage. So Ben butcher in the past to rely on firewood pile below, pick up the butcher's knife to lay down their burden. Two wolves are afraid to move on and stare toward the butcher.

  After a while, a wolf straight away and the other as a wolf-like dog in front of the squat. A long time, it seems to be a wolf's eyes closed, looking very relaxed. Butcher all of a sudden jump, with a wolf's head Daopi, Liankanjidao to kill wolves. Butcher about to start now, to firewood behind a pile, saw another wolf is firewood heap holes, drilled in the past want to butcher in the back of the attack. The wolf has got half of the body, only the buttocks and tail exposed. From the butcher cut off the back of the hind legs of the wolf, the wolf kill. Understand this in front of the wolf pretending to sleep, was used to lure the enemy.

  Wolf is too cunning, but for a while two wolves have been hacked to death, the animal deception to how much? Only give them increased humor.

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