【必備】寫(xiě)動(dòng)物的英語(yǔ)作文匯總9篇
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寫(xiě)動(dòng)物的英語(yǔ)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.
北冰洋在秋季結(jié)冰以后，北極熊就會(huì)出發(fā)去尋求它們最喜歡的食物：富含脂肪的海豹和胡子海豹。海冰在夏季開(kāi)始融化斷裂。這使北極熊在夏季無(wú)法吃到美味的海豹，所以它們進(jìn)入禁食期。至少，情況應(yīng)該是這樣。但是由于地球變暖，溫暖的無(wú)冰季節(jié)越來(lái)越長(zhǎng)。那饑餓的北極熊要怎么辦?
科學(xué)家曾經(jīng)認(rèn)為，北極熊可能會(huì)轉(zhuǎn)向陸地上的食物來(lái)補(bǔ)充它們對(duì)鰭足類(lèi)動(dòng)物飲食的需求，進(jìn)而生存下去，這些陸地食物包括雪雁、雪雁蛋和北美馴鹿。
“文獻(xiàn)中有過(guò)這類(lèi)辯論，即在寒冷融化時(shí)陸地食物是否能滿足北極熊的營(yíng)養(yǎng)需求�！�
尼克·皮爾福德是加拿大阿爾伯塔大學(xué)的生物學(xué)家。
“通過(guò)上世紀(jì)70年代初的研究，還有早期的探險(xiǎn)者日志，我們很早以前就知道，北極熊會(huì)以陸地食物為食。但是辯論的焦點(diǎn)在于，這些食物是否能增加北極熊的能量�！睋Q句話說(shuō)，這些替代食物能否為北極熊提供足夠的營(yíng)養(yǎng)，彌補(bǔ)不能進(jìn)食海豹帶來(lái)的損失?
為了解開(kāi)這個(gè)疑惑，皮爾福德及同事對(duì)西哈德遜灣荒野地區(qū)的北極熊在無(wú)冰季期間每天失掉的體重進(jìn)行了估算，從表面上看，北極熊在這段時(shí)間食用了陸地食物。隨后，他們將這一數(shù)據(jù)與通過(guò)馬尼托巴北極熊預(yù)警計(jì)劃暫時(shí)捕得的北極熊所失掉的體重進(jìn)行了對(duì)比。
在被關(guān)期間，北極熊不吃東西。它們的`體重每天大約下降1公斤。雖然野生北極熊能享用北極“小吃”，但是它們的體重每天也同樣會(huì)下降1公斤。這一研究結(jié)果發(fā)表在《生理學(xué)和生化動(dòng)物學(xué)》期刊上。
“顯然結(jié)果表明，陸地食物不能為北極熊提供足以抵消大量損失的能量。所以，北極熊可以從食用海冰下面的食物轉(zhuǎn)向食用陸地食物，并幫助它們對(duì)抗日益延長(zhǎng)的無(wú)冰季這個(gè)觀點(diǎn)，并沒(méi)有在這項(xiàng)數(shù)據(jù)中得到證明�！�
問(wèn)題是，北極熊進(jìn)化成了依靠海洋食物的動(dòng)物。
“陸地食物以蛋白質(zhì)和碳水化合物為基礎(chǔ)，而北極熊需要的食物以脂肪為主。脂肪是這些熊真正需要的東西;它們高度適應(yīng)的情況是，將脂肪吸收進(jìn)它們的系統(tǒng)中，然后把這些脂肪放在身上以增加體重，這樣它們之后就可以依靠這些脂肪來(lái)度過(guò)禁食期。唯一能提供給北極熊這種脂肪的就是海洋哺乳動(dòng)物。但是它們只能在有海冰時(shí)食用到這些海洋哺乳動(dòng)物�！�
成年北極熊可以8個(gè)月不進(jìn)食。但是小一些的未成年北極熊已經(jīng)不再被哺育，它們必須要去獵食，可是它們不能在漫長(zhǎng)的無(wú)冰季期間一直不進(jìn)食。所以，隨著北極地區(qū)變暖，較小的北極熊將會(huì)大批死亡。這使這些物種的生存成為問(wèn)題。
寫(xiě)動(dòng)物的英語(yǔ)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!
寫(xiě)動(dòng)物的英語(yǔ)作文 篇3
我最喜歡的小動(dòng)物有很多，燕子、小狗、小兔子、小松鼠……這其中，要數(shù)我最喜歡的那就是小貓了，說(shuō)起小貓來(lái)，我家也有一只，那么我就來(lái)講講我和小貓的故事吧。
那只小貓的毛軟軟的，滑滑的，頭上還有好看的花紋，所以，我給它取名為花花花花的胡子很長(zhǎng)，有一次我拿爸爸的刮胡刀去給花花刮胡子。媽媽說(shuō)：花花的胡子不能刮，因?yàn)樵诤馨档牡胤剑芪⑽⒌某閯?dòng)胡須，才能量出來(lái)道路的寬度。哇，原來(lái)它的胡子還有這么大的作用啊！我說(shuō)。
花花非常愛(ài)干凈，它拉便便也要去上廁所，一個(gè)便盆里放了很多煤渣，它每次拉完便便的時(shí)候都要用煤渣把便便埋起來(lái)。
花花是我的好朋友，每次我有零食都給它分一點(diǎn)，我穿襪子它就在我的腳上蹭來(lái)蹭去，我和它一起曬太陽(yáng)，跟它一起說(shuō)悄悄話。
這就是我最喜歡的小動(dòng)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.
寫(xiě)動(dòng)物的英語(yǔ)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.
你知道我最喜歡的動(dòng)物是什么嗎？
是猴子。這是一種非�？蓯�(ài)的動(dòng)物，很多人都非常喜歡它們。
一般來(lái)說(shuō)，童子的身子比較小，身上長(zhǎng)滿了毛。其中的一些種類(lèi)有兩只大眼睛、大耳朵和一條長(zhǎng)尾巴。我可以在電視上或動(dòng)物園里看見(jiàn)它們。
每次我去動(dòng)物園，我都會(huì)去看猴子。它們常常待在樹(shù)上，在樹(shù)木之間跳來(lái)跳去，非�；顫姡懭讼矚g。它們高興的時(shí)候，還會(huì)特別表演給游客看，非常好玩。
寫(xiě)動(dòng)物的英語(yǔ)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!
寫(xiě)動(dòng)物的英語(yǔ)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.
寫(xiě)動(dòng)物的英語(yǔ)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.
寫(xiě)動(dòng)物的英語(yǔ)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.
我最喜歡的動(dòng)物是狗。我最喜歡它的原因是因?yàn)樗苣芨伞９肥侨祟?lèi)最好的朋友。它也是老人們最好的伴侶。狗是通人性的。如果他們的孩子不在他們身邊，很多老年人會(huì)養(yǎng)狗。老年人可以把對(duì)他們孩子的愛(ài)放到狗狗的身上，這也能溫暖他們的心。導(dǎo)盲犬是非常有名的。他們是特殊的狗。這些狗會(huì)引導(dǎo)眼睛看不見(jiàn)的主人找到正確的路�？�，我就說(shuō)狗狗是非常能干的。
寫(xiě)動(dòng)物的英語(yǔ)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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