写动物的英语作文

时间：2021-12-27 10:27:46 动物类英语作文我要投稿

【精选】写动物的英语作文4篇

　　在日常生活或是工作学习中，许多人都写过作文吧，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。你所见过的作文是什么样的呢？以下是小编为大家整理的写动物的英语作文4篇，欢迎阅读与收藏。

【精选】写动物的英语作文4篇

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

　　Animals are friends of human beings. Most of them are lovely. I like giraffe the most.

　　They are very tall and have many brown spots. They have very long necks, so that they can eat the leaves in high trees. Giraffes are gentle and lovely.

　　They are friendly to people. When I go to the zoo, I always look at them. They move slowly.

　　I can’t keep it as a pet, because it’s so huge. It’s a big pity.

写动物的英语作文篇3

　　I have a dog. It is my favourite animal. His name is Beibei. His name and my name are the same. I like Beibei very much. He is only one year old now. He is very small. He is black and white. And he has one sister. She is yellow and white. His mother is white. His father is black. It is very clever. And it is very lovely. So I like him. He has a very small nose, two eyes and two small ears. He has a small mouth, too. He has four legs and a small face. He loves meat very much. There is a bowl near his house. There is always some bones or pork in it. And it is always very clean. His house is very beautiful. The door is red. And there are two windows in the wall. The wall is white and pink. There is a lock in the door. The lock is yellow. It is very nice. Beibei loves his house very much. He usually sleeps and rests in the house. I always give him lots of food. He likes me very much. He is very friendly. I like him, too. He thinks I am very helpful. I think so, too.

　　译文：

　　我有一只狗。这是我最喜欢的动物。他的名字是贝贝。他的名字和我的名字是一样的。我的贝贝很喜欢。他现在只有一岁了。他很小。他是黑白相间的。他有一个妹妹。她是黄色和白色的。他的母亲是白人。他的父亲是黑色的。它非常聪明。它非常可爱。所以我喜欢他。他有一个非常小的鼻子，两只眼睛和两只小耳朵。他有一个小嘴，太。他有四条腿和一个小脸蛋。他很喜欢吃肉。他家附近有一个碗。里面总是有一些骨头或猪肉。它总是很干净。他的房子很漂亮。门是红色的。墙上有2个窗户。墙是白色的，粉红色的。门上有一把锁。锁是黄色的。这是非常好的。贝贝很爱他的房子。他通常睡在房子里。我总是给他很多食物。他非常喜欢我。他很友好。我也喜欢他。他认为我很有帮助。我也这么认为。

写动物的英语作文篇4

　　I like the small animal is a puppy, it whole body covered with white hair, like a regiment cotton candy; The eyes are round, like two gem; The ear is a semicircle, nose is black, short tail, very lovely.

　　I love to eat bones to it, it will be a piece of a piece, a short period of a short to chew. After it finished eating bones, will be barked and called several voice, as if to say: "small host, thank you."

　　Whenever I go to school, she will always send me a little way, until I pretended to be angry hit it two or three, it quietly ran home. It not only can drive me to school, also like to race with me, very fast, sometimes, left me for a long walk. At ordinary times, it seems very timid, but when he saw a stranger, but not brave to open eyes of a stranger's every move, also called out when key,

　　It is really a clever and loyal dog!

　　When I come home from school, but a dog is the most happy time. As long as the dog at home, I'm on my way home from school to home some way can always see the dog at the door waiting for me. It saw me, will be shaking his tail to me on the way to here. And then bouncing around after my people predecessors. So clever dog can not likable?

　　I wish to raise the dog to the white white fat, because it's so cute.

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