【必备】写动物的英语作文汇总9篇
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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
You know, there's a lovely puppy in the aunt's house. It has white hair all over the body, white as cotton candy; its eyes are black and white, like two precious stones; ears are semicircle, nose is black, tail is short. It's really beautiful!
One day, I went to the aunt's home to play. As soon as I entered the door, I saw the dog barking in the doorway, as if welcoming me to his house. I saw it, smiled and said: "small naughty, do not worry, I will play with you immediately!"."
As I entered the room, I sat down on the sofa and wanted to rest for a while. But it licks me with its tongue. I can't stand this kind of "affectionate" reception, so I have to go out with him.
Outside, we played hide and seek. I hid in the middle of the back of the car, waiting for it to come to me. After a while, I saw him running nimbly towards this place. Suddenly, it came to me with a slam on the brakes, but it didn't realize my existence. So I decided to come and see what it was like.
It was the body of the hair, like a bath. It spat out its tongue against the sun. Yes, the weather is so hot today, just like the fire on the ground. But it also found me at this time. Ah! It become more lovely! Light shining white hair, looks very smooth. Its eyes were fixed on me, a smile on my face, as if to say, "look, boy, I've found it."".
I really like this cute puppy!
写动物的英语作文 篇3
我最喜欢的小动物有很多,燕子、小狗、小兔子、小松鼠……这其中,要数我最喜欢的那就是小猫了,说起小猫来,我家也有一只,那么我就来讲讲我和小猫的故事吧。
那只小猫的毛软软的,滑滑的,头上还有好看的花纹,所以,我给它取名为花花花花的胡子很长,有一次我拿爸爸的刮胡刀去给花花刮胡子。妈妈说:花花的胡子不能刮,因为在很暗的地方,她能微微的抽动胡须,才能量出来道路的宽度。哇,原来它的胡子还有这么大的作用啊!我说。
花花非常爱干净,它拉便便也要去上厕所,一个便盆里放了很多煤渣,它每次拉完便便的时候都要用煤渣把便便埋起来。
花花是我的好朋友,每次我有零食都给它分一点,我穿袜子它就在我的脚上蹭来蹭去,我和它一起晒太阳,跟它一起说悄悄话。
这就是我最喜欢的小动物——花花。
There are a lot of my favorite small animals, swallows, puppies, rabbits, squirrels... Of which, the number I like most is the cat, talking about the kitten and my family, so I'll tell about the story of my cat and my cat.
The cat's fur is soft, slippery, and beautiful pattern on the head, so I gave it a name flower flower beard, once I took the razor to shave flower dad. Mother said: the flower mustache can not be shaved, because in a very dark place, she can gently tap the beard, to measure the width of the road. Wow, it turns out that its beard has such a big effect! I said.
Huahua is very clean. It URLs and URLs and goes to the toilet. There are lots of cinders in a bedpan. Every time it pulls out, it uses coal cinder to bury the toilet.
Huahua is a good friend of mine. Every time I have snacks, I want to share it with you. When I wear socks, it will rub on my feet. I will share the sun with them and talk quietly with them.
This is my favorite little animal - flower flower.
写动物的英语作文 篇4
Do you know what kind of animal I like most? It’s monkey. Monkey is a kind of lovely animal. Many people like monkeys very much. Generally, monkey has small body covered with fur. Some kinds of monkeys have two big eyes and ears and a long tail.
I can see them on TV or the zoo. Every time I go to the zoo, I will go to see them. Monkeys often stay in trees and jump between them. They are so lively and favorable. When they are happy, they will act for visitors. It’s very funny.
你知道我最喜欢的动物是什么吗?
是猴子。这是一种非常可爱的动物,很多人都非常喜欢它们。
一般来说,童子的身子比较小,身上长满了毛。其中的一些种类有两只大眼睛、大耳朵和一条长尾巴。我可以在电视上或动物园里看见它们。
每次我去动物园,我都会去看猴子。它们常常待在树上,在树木之间跳来跳去,非常活泼,讨人喜欢。它们高兴的时候,还会特别表演给游客看,非常好玩。
写动物的英语作文 篇5
Pets are our friends. it is a member of the family.
My mother has two pet dogs she takes good care of them everyday: feed them wash them talk to them and hug them. In winter she makes
trendy clothes for them. When they are ill she takes them to the vets and help them to take medicine as if they were babies.
It seems her pet dogs understand everything she did whenever they see her they lip her feet and give her the warmest welcome in the world what a touching picture!
写动物的英语作文 篇6
My favourite animals are pandas. I like them very much because they are gentle
and shy. They are also friendly to people. And they look funny, too. Their eyes
are the most interesting part. The black circles around their eyes make them
look like they are wearing glasses or have just been in a fight. Their favourite
food is bamboo leaves. They don’t like to move around very much. In fact, they
prefer to sleep all day if they can.
But now pandas are endangered. For one thing, people have destroyed many
of their habitats. For another, they don’t have enough food to eat. We must
think of ways to protect them. I think we should build more panda zoos and plant
more bamboo for them.
I hope everyone can do something for animals, so that we can keep our
world rich and colourful and full of interesting animals.
写动物的英语作文 篇7
Do you know what kind of animal I like most? It’s monkey. Monkey is a kind of lovely animal.
Many people like monkeys very much. Generally, monkey has small body covered with fur. Some kinds of monkeys have two big eyes and ears and a long tail. I can see them on TV or the zoo.
Every time I go to the zoo, I will go to see them.
Monkeys often stay in trees and jump between them. They are so lively and favorable. When they are happy, they will act for visitors. It’s very funny.
写动物的英语作文 篇8
Dog is my favorite animal. The reason why I like it most is because it’s very competent. Dog is the best friend for mankind. It is also the best companion for the old people. The dog can feel the human nature. So many old people will raise dogs if their children are not with them. The old can give their love for their children to the dog to make themselves feel warmly. I believe the seeing eye dog is very famous. They are special dogs. Those dogs will guide their owners whose eyes is blind to go the correct way. See, I say dogs are very competent.
我最喜欢的动物是狗。我最喜欢它的原因是因为它很能干。狗是人类最好的朋友。它也是老人们最好的伴侣。狗是通人性的。如果他们的孩子不在他们身边,很多老年人会养狗。老年人可以把对他们孩子的爱放到狗狗的身上,这也能温暖他们的心。导盲犬是非常有名的。他们是特殊的狗。这些狗会引导眼睛看不见的主人找到正确的路。看,我就说狗狗是非常能干的。
写动物的英语作文 篇9
My pet is a lovely dog.Its name is "dian dian".because there are a lot of black circle on its skin.the "dian dian" is very friendly.Many childen like play with him.His favourite food is meat bones. His favourite toy is a doll. 'dian dian ' likes to run very much.It can run very fast and it has a girl friend.its name "na na".there are a lot of black circle on its skin,too.I like my pet very much.It is a good pet!!
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