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动物英语作文 篇1
Some people think that human needs for farmland, housing, and industry are more important that saving land for endangered animals. Do you agree or disagree with this point of view？ Why or why not？ Use specific reasons and examples to support your answer. In the past, there have been many endangered animals. Now they are extinct. Does it matter？ Has our environment been affected by their absence？ Has the quality of our own life been changed？ The answer to these questions is “Yes.” Yes. It does matter if we destroy an endangered species habitat to develop more farmland, housing or industrial parks.
There is a delicate balance of nature. If one small part is removed, it will effect all the other parts. For example, if certain trees are cut down, bats will have no place to roost. If they cannot roost, they cannot breed. If there are no bats, there will be no animal, or bird to eat certain insects that plague our crops. Yes. Our environment has been affected by the absence of certain animals. Certain flowers are pollinated by butterflies, which migrate from Canada to Mexico. Some of the breeding grounds of these butterflies were destroyed. Now these flowers are disappearing from certain areas. We will no longer be able to enjoy their beauty. Yes. The quality of our life has been changed America used to be covered with giant trees. Now we have to visit them in one small park. Rain forests around the world are being cut down to make room for humans. We will never be able to see or study this fragile ecosystem. I would encourage us humans to look for other alternatives for our farmlands, housing, and industries. We have alternatives; the animals do not.
动物英语作文 篇2
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。
动物英语作文 篇3
Two years ago, my family had a lovely puppy, although it had already left me, but she was still clearly in my mind.
Remember when it first came to my house, very noisy, noisy family jiquanbuning, but hard work pays off, after my mother's care, the dog has become my good friend.
The size of a puppy is not big. Its size is small and its size is small. Its round head is studded with black eyes. A pair of big ears can be heard if only a little noise is heard.
The dog's hair just like cotton played, feels very comfortable. Its tail is so long that it warped like a bamboo. Since the puppy has become a friend with me, every morning it bites the quilt with sharp teeth until I call me.
But one day, the unfortunate thing happened, it was a car broke, since it does not eat does not drink, I came back from school, saw it lying on the ground, motionless, I ran to call it, but it had no reaction, it is really dead, I my heart like a needle like pain, I put it in his arms, tears soaked it down, if it is too cold, I took off my mother gave me to buy a new jacket draped over the dog, mind my puppy......
That lovely puppy, my childhood partner, has brought me a lot of happiness, and I can't forget it so far.
两年前，我家养过一只可爱的小狗，虽然它已经离开了我，但她仍然清晰的记在我的脑子里。
记得它刚来我家时，十分吵闹，闹得我家鸡犬不宁，可是，功夫不负有心人，经过我和妈妈的细心照料，小狗成了我的好朋友。
小狗的体型不大，一个板凳大小，小巧玲珑，圆圆的脑袋上镶嵌着一双乌黑的眼睛，一双大大的耳朵，只要听到一点声音就会叫起来。
小狗的毛就像刚弹过的棉絮一样，摸上去舒服极了。它的尾巴好长，翘起来像一根竹子。自从小狗和我成了朋友以后，每天早上它都用锋利的牙齿把被子咬过，直到把我叫起来。
但是有一天，不幸的事情发生了，它被一辆车弄伤了，从那以后它不吃不喝，我从学校回来，看见它躺在地上，一动不动，我跑过去叫它，但是它没一点反应，它真的死了，我的心里犹如针刺一般的痛，我把它紧紧抱在怀里，眼泪浸湿了它的绒毛，怕它太冷，我脱下妈妈给我新买的背心披在小狗身上，心里默念着我的小狗……
那只可爱的小狗，我童年的伙伴，曾经带给了我无比的快乐，我至今不能忘记。
动物英语作文 篇4
What animal do you like best ?Is it elephant ?Or tiger ?But my favorite animal is monkey 。 Because they have the yellow skin，a big mouth ，a small nose，and two big eyes 。They climb trees quickly ，and they can pick bananas or apples 。I think they are very lovely and interesting!
So I hope you to like them ，too 。
译文:你最喜欢什么动物？它是大象？或者老虎？但是我最喜欢猴子。因为它们有着黄色的皮毛，一张大嘴，一个小鼻子和两只大耳朵。它们爬树是迅速的，它们还可以摘香蕉或苹果。我认为它们非常可爱、有趣。
所以，我希望你们也喜欢它们。
动物英语作文 篇5
Everyone knows animals are our friends. So we should be friendly to them.
But some people kill the rare animals, such as pandas, golden monkeys and so on in order to get money.
It will cause these animals to disappear soon.
I think our government should punish those people severely who kill the rare animals.
It is our duty to protect the endangered animals.
动物英语作文 篇6
Animals are human's good friends, we should take good care of them and protect them, but some people use them as toys and dishes...
First said the toys, many children, and even some adults, every time to buy a pet, such as cats, dogs, goldfish... At home, like toys play a trick on them, teasing, I want to say: the animal is also a life! They also have dignity! Also, to keep small animals if oversight, sometimes will make them sick, and even death.
Besides, dishes, many adults like to eat wild animals, like frogs, snakes... So, many animals are extinct! And also have a lot of harm to human body!!!! It is said that in 20xx "SARS" is caused by this! My sincere cautions: "please don't eat wild animals again!"
Also, many people especially love to eat frogs, so there are a lot of people to make money, cruel killing frogs to the vegetable market to buy... Do you in the killing of those who kill the frog, the frog's at the same time, have you ever thought, the frog is human's good friends, they can do to help farmers uncle catch insects, protect crops?
Animals are friends of human beings, to protect animals, please! To protect animals, everyone duty!
动物英语作文 篇7
Today is Sunday May 25 20xx.
I go to the zoo whit my friends.The weather is sunny and cool!Look!The elephants are drinking water.The birds are flying,the tiger is walking with lion.Look at the river !
The fish are swimming in the water . The mokeys are swinging .Oh no!The weather is terrible.It’s rainy. We are go home watch TV and play the game!I very not happy!
动物英语作文 篇8
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。这是一种特别可爱的动物，很多人都十分喜欢它们。通常来说，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、大耳朵以及一条长尾巴。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，十分活泼，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。
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