描写动物的英语作文

描写动物的英语作文

描写动物的英语作文 1

Dolphin is my favourite animal.

It is one of the most precious animals. Their bodies are very long, about one zhang(丈). Dolphins live in the sea. They live on fish, shrimps and so on.

Dolphins are very friendly and peaceful.

They never attack people. Instead, they have saved many people in danger in the past years. How helpful the dolphins are!

Dolphins are very clever. People often train them so that they can give a dolphin show which brings people a lot of happiness and joy.

Unluckily, the number of dolphins is getting smaller and smaller. Because of water pollution, there is less and less space for dolphins.

Many people make money by hunting dolphins. If we don’t protect them, maybe we’ll lose our good friends one day.

As a student, I hope more and more people should take actions to protect dolphins.

描写动物的英语作文 2

I like dogs, because they are man’s good friends.

They can do many helpful things to us, such as guarding our houses, greeting guests, helping the police, and so on.

Some trained dogs can even lead the blind people and save people’s lives.

So they‘re treated as our family members.

I hope someday dogs will be in great harmony with human-beings.

描写动物的英语作文 3

Say my favorite animal, is my two little hamster small black and small white, now I will briefly introduce them!

My little white body is thin, good-natured bad, it is not very good at eating! When he sleeps, he first shrinks his foot to his coat and rolls his body into a ball.

Me again black, it can be much more lovely than with small white, never call a sound, even if in a cage to eat rob it was a small white also don't cry not make not shout or call, when it with small white play it also let the small white everywhere, they are just like a pair of siblings.

Hamsters not fussy what all eat and very healthy, because they are the staple food is grain, the little black first put his head at the dinner table to eat bowl eat grains, then drink a few saliva, when the rest if you wake up the it, it will be very grumpy like Campbell hamsters (Campbell hamsters also called Mongolia hamsters or Siberian hamster. Very grumpy.)

My little black is a strange and grumpy little one, and they are my favorite animals, "little hamsters."

说道我最喜欢的动物，就是我的俩小仓鼠小黑和小白了，现在我就简单的介绍一下它们吧！

我的小白外形偏瘦，脾气时好时坏，它吃饭时脾气不是很好呦！它睡觉的时候先把脚缩到皮毛后在把身体卷成一团。

我再说一下小黑吧，它和小白比起来可乖多了，从来不叫唤一声，就算在笼子里吃的被小白抢了它也不哭不闹不喊不叫的，在它和小白玩的时候它也处处让着小白，它们就像一对姐弟一样。

小仓鼠不挑食啥都吃而且很健康，因为它们的主食是五谷杂粮，小黑吃饭时先把头放进食盆里吃杂粮然后喝几口水，当它休息时你如果把它吵醒，它的脾气就会很暴躁像坎贝尔仓鼠一样（坎贝尔仓鼠也叫蒙古仓鼠或西伯利亚仓鼠。脾气非常暴躁。）

我的小黑真古怪一会很温顺一会又脾气暴躁，它们就是我最喜欢的动物“小仓鼠”。

描写动物的英语作文 4

　　my favorite animai is cat,because they're very cute,smart and friendly.they're yellow,white,black.they're have small nose,small ears,big eyes and small mouth.i like cats very much.

　　Panda—the National Treasure

　　Panda is one of the scarcest animals.People in the world like it very much.There used to be many pandas in China long ago.As the balance of nature was destroyed and the weather was getting warmer and warmer,pandas became less.But at present,the number of pandas is increasing year by year.There are now so many pandas that some are being sent to other countries so that people there can enjoy them.

　　Nowadays,the biggest nature park for panda in China is in Sichuan.There is a research centre for nature and wild life there.Scientists hope that one day they will have enough pandas to be set free and let them live in the wild again.

描写动物的英语作文 5

A triple bacon cheeseburger seems like a heart attack on a plate.

三层奶酪咸肉汉堡感觉吃完很容易让人突发心脏病。

So how can polar bears thrive on their version, seal blubber?

那么,北极熊是如何处理这些高热量食物的呢?

Turns out they've stocked up on genes that let them clear fats from their blood.

结果显示它们储存在遗传基因里的信息使得它们能够清除血脂。

That's according to a study in the journal Cell.

这是根据《细胞》杂志上的一篇研究得出的结论。

Polar bears are well adapted to life on the sea ice.

北极熊非常适应在浮冰上的生活。

Up to half their body weight's fat, which gives them extra insulation and buoyancy, and provides them with a ready source of energy.

几乎占它们身重一半的脂肪足以使它们保暖并且维持体力，提供给它们一种易转化的能量。

But how can an animal so fat also be so fit?

但一种动物怎么能又胖又健康?

Researchers compared the genomes of polar bears with those of brown bears, and found that polar bears have accumulated genetic changes that boost their heart health and fat metabolism.

研究人员们通过比较北极熊和棕熊的基因，发现北极熊的基因组中积累了不少有利于心脏健康和脂肪代谢的遗传突变。

One gene in particular, called ApoB, helps move cholesterol out of the blood—where it causes problems in humans—and into cells.

特别是编码为载脂蛋白B的基因有助于清除血液中对人类有害的胆固醇转变成细胞代谢。

These genomic changes happened quickly, evolutionarily speaking.

这些遗传变化从进化的角度来讲发生的十分快。

Polar bears and brown bears diverged from a common ancestor less than half a million years ago.

北极熊和棕熊都来自于同一个祖先，它们是在大约50万年前左右开始向不同分支进化。

But if that seems super speedy, the ability to digest lactose didn't spread through human populations until we domesticated cows, just 10,000 years ago.

但是如果这种变化看上去十分快速的话，消化乳糖的酶逐渐进化到人类各个种群中也还是发生在大概1万年前我们可以驯化乳牛之后。

A moooving testament to the power of natural selection.

这是自然选择力量的证明。

描写动物的英语作文 6

My favourite animal is tortoise. Tortoise walk not fast. But I like the tortoise. Why? Because, tortoise is a cute animal. It have a short tail and a four short foot. It have a little head and a hard shell. They are forty-five little and cute tortoise in My home. They like to play in the water. When they afraid some thing. They wall run fast. They like to eat the fish. I often buy some small fish to them to eat. They can catch the fish fast. First, they fake(假) sleep. When the fish swim near they mouth. They catch the fish fast and bit the fish head. So, the fish die. They can eat the fish. In winter. They like to sleep in the sand. When they sleep, they don’t eat any food.Because they wall hibernation. But, when they are thirsty. They come out of the sand. So, we must give water to them to drink.

I love the tortoise. I hate the eagle. Because, the eagle often eat the tortoise with it sharp mouth.My favourite animal is tortoise.

我最喜欢的动物是乌龟。乌龟走路快。但我喜欢乌龟。为什么?因为乌龟是一种可爱的动物。它有短尾巴和四个短脚。它有一个小脑袋和一个坚硬外壳。他们是45小和可爱的乌龟在我的家。他们喜欢在水里玩。当他们害怕一些事情。他们墙跑得快l。他们喜欢吃鱼。我经常买一些小鱼给他们吃。他们可以很快的抓到鱼。首先,他们假睡眠(假)。当鱼游在他们的嘴。他们很快的抓到鱼,鱼的头。所以,鱼类死亡。他们可以吃鱼。在冬天。他们喜欢睡在沙滩上。他们睡觉的时候,不要吃任何食物。因为他们冬眠。但是,当他们渴了，他们就会从沙子中走出来。所以,我们必须把水给他们喝。

我喜欢乌龟。我讨厌鹰。因为,鹰经常吃乌龟用它锋利的嘴。我最喜欢的动物是乌龟。

描写动物的英语作文 7

I have a big dog ane I love him very much .he has two round black eyes and his sense of hearing is sensitive .

His claws are like four plum blossoms .His tail always shakes and looks very cute .In the daytime ,he likes sleepping under the sunshine .

But at night ,he is careful and keeps like the doorkeeper guards .He is smart and always eat a lot .He is meek to me but when he meets strangers ,he will bark to them .

When I become tired ,he will come and lick my face with his tongue .when I am not busy ,he will play with me .He can give me so much happiness and now I can not leave him .I love my dog because he is one of my family numbers .

描写动物的英语作文 8

Why should people care? Because we need animals, and because once they are gone, there will never be any more.

Animals are more than just beautiful or interesting. They are more than just a source of food. Every animal has its place in the balance of nature. Destroying one kind of animal can create many problems.

For example, when farmers killed large numbers of hawks, the farmers' stores of corn and grain were destroyed by rats and mice.

Why? Because hawks eat rats and mice, with no hawks to keep down their numbers, the rats and mice multiplied quickly.

Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger. Quite a few countries have passed laws. These laws forbid the killing of any animal or planton the danger list. Slowly, the number of some animals in danger is growing.

描写动物的`英语作文 9

I have a litte dog“Xiao Pang”.Because It is very tittt small.It'yellow and brown.It olways run with me.It is so big.It like eat meat and rice. Sometime I call it“Xiao Pang ”, then it runs towe fast.

I have a litte dog“Xiao Pang”.Because It is very tittt small.It'yellow and brown.It olways run with me.It is so big.It like eat meat and rice. Sometime I call it“Xiao Pang ”, then it runs towe fast.

I love my dog.

描写动物的英语作文 10

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。