描写动物英语作文30词(最新20篇)
浏览
4007作文
1000写濒临危机动物的英语作文北极熊
全文共 1540 字
+ 加入清单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 theyve 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。
Thats 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 weights 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 didnt 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。
更多相似作文
篇1:描写我的教室英语
全文共 1726 字
+ 加入清单My classroom in tonghai mountain elementary school most chung emerald green building on the west side of the position, if you walk into our classroom, look, is so spacious and bright. Look! Is in the middle of the classroom, the teachers desk, table, neatly lined with books and a pen, desk surrounded by the students desks, looking at the desk, as if heard the classmates that lang langs top, in are the students do on the blackboard, the blackboard content rich, the pattern is exquisite, is the window of the classroom, a medal, is hung above the blackboard reads "civilized class" three red bright red big word, in the medal of the left, a few gold shining with certificates, it is the students efforts. In the left side of the citation is the students books Angle, there are a lot of books for the students to watch. On either side of the board, have greatly small window, the window with a light green decorative pattern looks pure and fresh quietly elegant, across the window there are two doors, a front door and a back door, very convenient, in the top right-hand corner of the back door, have a "voice" three characters, there with the students to do nice CARDS, CARDS on your inner voice.
Look! This is my classroom, a clean, spacious and bright, with an invigorating top students the classroom!
Oh, I love my classroom!
我的教室在通海县秀山小学涌翠楼最西边的位置,如果你走进我们的教室,一眼望去,是那么的宽敞、明亮。看!在教室的中央,是老师的讲桌,桌子整齐地摆放着课本和笔,讲桌的四周是同学们的课桌,看着这些课桌,仿佛听到了同学们那朗朗的读书声,在正东边是同学们做的黑板报,黑板报内容丰富、图案精美,是整个教室的亮点,在黑板报的上方挂着一块奖牌,上面写着“文明班”三个鲜红鲜红的大字,在奖牌的左面,是几张金光闪闪的奖状,那是同学们努力的成果。在奖状的左侧面是同学们的图书角,那儿有许许多多的图书供同学们观看。在黑板的两侧,有着大大小小的窗户,窗户上有着淡绿色的花纹看起来清新淡雅,在窗户的对面有两扇门,一扇前门,一扇后门,十分方便,在后门的右上角,有着“心声栏”三个大字,那里贴着同学们做的精美的卡片,卡片上写着自己的心声。
瞧!这就是我的教室,一件干干净净、宽敞明亮,伴随同学们朗朗读书声的教室!
啊,我爱我的教室!
篇2:描写老师的英语短文
全文共 417 字
+ 加入清单Our English teacher, Mrs Wang, is about forty years old。 She always wears a pair of glasses。 She is very strict with us。 When we make a mistake, she often makes us stand up。 But we hear that her home is far from our school。 Every morning she has to walk to school for forty minutes。 And she is never late。 Then we come to see that Mrs Wang loves us dearly。 She teaches us so carefully。 In fact, she is a good teacher.
篇3:描写动物的作文小金鱼
全文共 409 字
+ 加入清单我家养了几条小金鱼。
金鱼是一种美丽的小动物,它们都非常惹人喜爱。金鱼的颜色可漂亮啦有上下都红色的.有黄色的.还有全身都黑色的,我给它们分别取名叫“红红”.“黄黄”.“黑黑”。它们混杂在一起,五颜六色的,游来游去,带起一波又一波的水纹也闪闪地动起来,好看极了。
金鱼的样子也很可爱,有的鼓着又大又圆的眼睛,拖着蝴蝶似的尾巴,像小绅士一样。那条叫“红红”的金鱼,个儿不算大,有趣的是它的眼睛和嘴巴是格外的红,别看它小,动作却非常灵活。每当我靠近鱼缸时,它就一拱一拱地游起来,在鱼缸里绕圈子,摇头摆尾地向我致敬。
这三条金鱼不但外形可爱,吃食的样子更是逗人。瞧,我把鱼食投到鱼缸里,它们就蜂拥而至,“黑黑”一马当先尾巴一甩,头使劲往上一伸,把最大的鱼虫干变成“囊中之物”。而“红红”和“黄黄”呢,你挤我.我挤你毫不相让,结果弄得两败俱伤,什么也没吃到。
只要一有空,我就会坐在鱼缸前,看着它们嬉戏,看着它们舞蹈。我爱我家的小金鱼。
篇4:保护动物的英语
全文共 931 字
+ 加入清单I am a student from Xinhua Middle School in Chongqing,China. Informed that
you have a vacancy for a student to serve as the spokesman for animals, I cannot
resist my inner excitement,hoping to seize the opportunity to do something for
animals .
In my mind,nothing can delight me so much as caring for animals. Wherever I
go and whatever I do, I usually keep in mind that animals are angels from the
heaven, which bring us endless comfort and pleasure. I have been a panda lover
since my childhood. Panda is so lovely that brings fun to people and they are
regarded as the treasure of our country. Unfortunately,such a rare species is
now faced with the danger of being extinct。What I am eager to do is to raise
people’s awareness of animal protection and appeal to more people to care for
our earth companies.
It is my belief that all human beings can make a difference together. I
would appreciate it if my application could get your approval.
篇5::我最喜欢的小动物英语作文
全文共 1346 字
+ 加入清单You know, theres a lovely puppy in the aunts 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. Its really beautiful!
One day, I went to the aunts 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 cant 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 didnt 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, Ive found it."".
I really like this cute puppy!
篇6:描写动物的英语作文
全文共 449 字
+ 加入清单I have a dog, it is lovely, it is called Mimi. Every time I go home from school, Mimi always cruising around me, I will go to the kitchen to get a piece of meat to it, it lay on the floor to eat. My legs and then jump to bark "Wang "called, so I picked up Mimi, it is the opportunity to lick my hand, making me laugh.
I like Mimi, like puppies.
我有一条小狗,它很可爱,它叫咪咪。每当我放学回家时,咪咪总是围着我绕圈,我便去厨房拿一片肉给它,它就趴在地板上吃。然后跳到我腿上汪汪汪地叫,于是我抱起咪咪,它就乘机舔我的手,逗得我哈哈大笑。
我喜欢咪咪,喜欢小狗。
篇7:关于描写动物的片段
全文共 562 字
+ 加入清单猫在强烈的阳光下,瞳孔可以缩得很小,像一根线那么细;在夜色昏暗之中,瞳孔可以开放得像满月那么圆;在白天一般强度的光线下,瞳孔会形成枣核般的样子。
我的爱犬鲍尔可神气了。背上赤黑,光滑得像一匹缎子,腹部的毛白白的、毛茸茸的,看上去就像位外穿黑礼服,内穿白衬衣的绅士。
小白兔很可爱,胖乎乎的小白脸上镶嵌着一双红宝石似的眼睛,三瓣嘴上还长着小猫一样的胡子,特别是它总把那两只长长的大耳朵竖得直直的,显得十分神气。
这小松鼠的滑翔本领更是绝活,甩开大尾巴,一纵身就能腾空跃过好几米远,在树冠上飘来飘去,特别逗人喜欢。
刺猬身体胖胖的,四脚短小,长着锐利的爪,适合于掘土,尖红的长嘴很便于捕捉小虫。
狐狸的尾巴像深红的火焰的舌头一样,松弛、柔软地拖 在雪地上。
羊群聚集在一起,像一片白云;羊儿散开去,又像只只白蝴蝶。
鹿是腿长尾短、性情温顺、惹人喜爱的动物,毛色黄褐,杂有白斑,有的头上还有树枝一样的角。
金丝猴全身金黄色,背毛很长,宛如肩披一件金黄色的蓑衣,鼻子向前翘着;它的爪子很尖,有一根长长的尾巴。
在观众的笑声中,铁链上站着的这只黄毛小猴,“腾!”来了个大倒立;“唰!”又一个倒挂金钟;“呼!”又来了个大回转;“嗖”蹿到猴山上去了。
黑猩猩浑身长着又长又黑的毛,红屁股,红脸,脸上有很多皱纹,像个七八十岁的老太婆一样,嘴巴张大,还向前凸出。
篇8:描写秋景的英语
全文共 1053 字
+ 加入清单Autumn is the harvest season, the field, full of a farmer harvest the peaceful scene, look, the fruit over there bent the waist, the baby in the jungle happy singing, the farmer uncle In the field of food, not bustling.
This is the harvest, there is indeed desolate, leaves falling, fell on the road in the country, fell on the field, fell in every corner of the world. Deciduous leaves are not bad things, it means that the tree will give birth to new leaves, and this is a start, leaves it is so long fall, fall again, a burst of autumn wind blowing, I feel very cool, autumn , The summer heat is frozen, people also put on a coat, know is not called, as if everything has been applied magic, no vitality.
God will not be unfair to the fall, so in the fall for the earth to add a bright color - chrysanthemum. During the National Day, in the park, the streets are filled with chrysanthemums everywhere, colorful chrysanthemums in the sun against the background is graceful, for the autumn to add some vitality.
The fall as a start, the fall is wonderful.
篇9:我喜欢的动物小学英语
全文共 417 字
+ 加入清单I have a parrot. Its name is Nancy. I call it Nancy, because it is my passed grandmother’s name. I love her and hope she can accompany with, so I name my parrot her name. Nancy is very beautiful. Its fur is special comfortable. It is clever, too. At first, it can’t say any words, but now it can say many words. Like, good morning, good afternoon, good night, good bye and so on. it learns fast. I love it very much.?
篇10:描写孔雀的英语
全文共 637 字
+ 加入清单Peafowl are three Asiatic species of flying bird in the genus Pavo of the pheasant family Phasianidae best known for the males extravagant eye-spotted tail which it displays as part of courtship. The male is called apeacock the female a peahen and the offspring peachicks.[1] The adult female peafowl is grey and/or brown. Peachicks can be between yellow and a tawny colour with darker brown patches. The term also embraces the Congo Peafowl which is placed in a separate genus Afropavo.
孔雀是飞的鸟在雉科,孔雀属雉科三亚洲物种,最出名的男性的奢侈的眼睛发现的尾巴,它作为求爱的一部分显示。男性被称为apeacock,雌孔雀,和后代peachicks。成年雌性孔雀是灰色或棕色的。peachicks有黄色和茶色暗棕色斑块之间。该术语也包括刚果孔雀,这是放置在一个独立的属Afropavo。
篇11:保护动物英语
全文共 515 字
+ 加入清单Mark suddenly had a bad bellyache before class began this morning. His classmates immediately sent him to the Peoples Hospital nearby. In the hospital, the doctor gave him a medical check-up. The result of the examination showed that he was suffering from acute appendicitis and he needed an operation right away.
The monitor of his class quickly called Marks father and asked him to come to the hospital at once. After a while,Marks father came and the operation began in no time. Several days later,Mark recovered.
篇12:关于善待动物的英语作文
全文共 1231 字
+ 加入清单In our country,the number of wild animals is becoming smaller and smaller.Some of them are even dying outThe dangerous methods we human being has taken are as follows:
We have been cutting the trees to build houses,so the home of animals is intruded and they have to find new places to live.In this process,some of them died in the new environment.
The abuse of pesticide has also been endangering the life of wild animals.
In addition,in order to earn money,people have been killing the rare wild animals.
In that we have realized the threat of our behavior to our best friends,we should take actions to change such a condition by taking the following methods:
We should protect the wild animal by protecting the environment that they live in and protect themselves,not to hurt them.At the same time,we should establish more natural reserves for the wild animals.
I believe as long as work together to protect the wild animals,our life will be more and more comfortable.
在我国,野生动物的数量正变得越来越小。他们中的一些人甚至死那个危险的方法我们人类采取了如下:
我们已经减少树木盖房子,所以家里的动物侵入,他们不得不寻找新的居住地。在这个过程中,他们中的一些死于新环境。
农药的滥用也危害野生动物的生命。
此外,为了赚钱,人被杀死珍稀野生动物。
在我们意识到我们的行为的威胁我们的最好的朋友,我们应该采取措施改变这种情况采取以下方法:
我们应该保护野生动物,保护环境,他们住在保护自己,不要伤害他们。与此同时,我们应该建立更多的自然保护区的野生动物。
我相信只要共同努力,保护野生动物,我们的生活将会越来越舒适。
篇13::描写秋天的雨英语作文
全文共 2384 字
+ 加入清单High-rise buildings for dusk, Indus leaves on Xiaoyu rain. --Inscription
The raindrops were spinning in the sky and seemed to cheer for the location of the summer rain. Its dancing infected with the hot summer heat uncle and that annoying cicadas, they all want to see the interpretation of the autumn, but still was driven away by the wind.
Autumn sparse under the rain, wrapped in a layer of sadness. It is sad in what? Originally, it is blaming themselves, blame their coming to give a lot of good life is about to end the hint. Yeah, those "withered old trees faint crow, bridges people, trail westerly thin horse." The bleak picture, though by your hint after the picture. However, you do not know, without your kindness hinted that everything will know how the last interpretation, how will the interpretation of the most beautiful dance it So, you use the enthusiasm of the red maple leaves, so that it is in the last interpretation of the moment, with the most unique color of the fall. Then, you put your magic sinking rain dripping to the field, so that rice in the end of the life of the moment, the last bath once, and then in their own sleep, was stripped of the shell, leaving a small toot Particles, in the dream of peace with the world farewell. Let them go so quietly, without any pain.
Autumn is a magical painter, with its unique brush out of a "day street rain, such as crisp" ink painting. In the scroll, the little girl who holds the oil paper umbrella, with the autumn rain in the same umbrella, she is listening to the rain in the paper on the paper umbrella melody, try to interpret the autumn rain under every dream. Lying on the side of the leaves, in the autumn rain Xiaoxiao sprinkled, the veins flowing in the autumn rain, the wind cruel attack it, because the fall of love and this piece of poor little leaf tied to the ground, no longer let it suffer the wind All the way to torture. Leaves drank the raindrops of rain, obediently stay on the ground, that sitting shaky, and with a slight wind, even more autumn. Ink painting in the autumn rain, with their own vitality of the brush, everywhere depicts his own unique beauty. Autumn in the ink painting stroked in the past, when we had time to fall for the leaves and sigh, but our eyes attracted in such a beautiful picture. I worship this magical autumn painter.
A refreshing autumn debut of the fall ...
篇14:三年级英语动物日记
全文共 281 字
+ 加入清单Hello,my name is jhon.My favorite animals are cat. Because they very cute. They can paly with me. They are my friden and they can gave me very happy. They are yellow , write and black. Many people all live them. I thing they are healhy. Can you tell me about your favorite animals?
篇15:高二描写动物作文
全文共 1084 字
+ 加入清单狗的胃口好,我们喂它我们吃剩的东西,它也不挑三拣四;狗的嗅觉好,能帮人们抓坏蛋。
我最喜欢的动物就是小狗了,我利用周末去了姨夫的农场观察小狗。
姨夫的摩托车刚到农场大门口,小狗就一直叫唤个不停,好像它能够听懂似的,然后它就一溜烟儿地跑到大门口,跟着姨夫。如果有陌生人来了,它也一溜烟儿地跑到大门口,冲着他汪汪大叫,把那人吓得魂都要散了似的!难道用它来看守家门还不够吗?它的身子有白、棕两种颜色,靠近鼻子嘴巴的地方是黑色的。我想:它可真可爱啊!
我把带来的骨头倒进盆子里,小心翼翼地推到它身旁,然后手立刻抽出来,生怕它咬到我。看来它很饿了,我刚递过去它就抽出一根长骨头津津有味的吃了起来,它吃骨头的时候是用两条前腿抱住骨头,大口大口地吃,不一会儿一大根骨头就被塞进了它的嘴里,“咔嚓咔嚓”的声音听起来恐怖极了!我刚装好的一大盆骨头几分钟就被它一扫而光。我真佩服它,它可真是个名副其实的“大胃王”啊!
它的嗅觉非常灵敏,比人们的嗅觉好上十倍二十倍,甚至说五十倍都不为过,所以人们都用它来搜索嫌犯、救人。我想测试一下这只狗,于是我偷偷摸摸地把丢在地上的一小块地瓜埋在了它附近,然后我就示意它去找,我用手机记了时,是一分三十二秒。“哇塞!”我不禁赞叹到。我当时根本没给它看到我埋哪儿了,我现在更是佩服它了,不愧是我眼中动物界的“英雄”啊!
它最大的特点就是尽职,它看到农场里有老鼠来了,它宁愿放下它的食物,去追赶老鼠。有一次它突然从我脚下窜了过去,我定睛一看,原来是它在捉老鼠。老鼠一下就窜到了一个高两三米的平台上,而上这个不是狗的强项,老鼠在平台上停了一下,朝下面看了看,好像在说:“哈哈!你抓不到我啦!”说完它扭头就跑。尽管小狗在上平台时被长有硬刺的一种植物划破了皮,但它也不哭,它还是奋力的去抓老鼠。我看了,非常感动,连忙跑到了种有地瓜的地里,挑来挑去,挑了一个不大也不小的地瓜,然后跑到厨房里拿刀把它刻成了一个大拇指的样子。突然,一个影子从我身旁窜了过来,我连忙把“大拇指”举得高高的,忽上忽下,忽左忽右,精疲力尽的小狗也随着“大拇指”摇来摇去,好像在跳舞似的。最终,它终于坚持不住了,猛地一跳,把“大拇指”夺走了。这只小狗可真尽职啊!
原来,妹妹说叫它“小花”比较好,而我却给它起了个特殊而又响亮的名字“坦克”。妹妹问我为什么,我说:“因为它抓老鼠时一只接着一只,就像坦克轰炸一样准!”
我认识的这只小狗虽然是“大胃王”,但它却是我眼中动物界的“英雄”。狗怎么能知道人们的喜怒哀乐呢?难道它有特殊的感应器吗?没有。其实生活中什么东西只要我们去仔细观察,我们就一定会了解其中的奥秘!
篇16:写濒临危机动物的英语作文北极熊
全文共 3755 字
+ 加入清单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, thats whats supposed to happen. As the planet warms, the warmer ice-free season is getting longer and longer. So whats 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.
"Weve 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 weve 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 Manitobas 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 thats going to help supplement against longer ice-free seasons, that really doesnt 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; theyre 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 thats going to provide them with that type of fat are marine mammals. And they can only access those marine mammals when theres sea ice."
Adult males can go eight months without food. But younger, sub-adult bears, which are no longer nursing and must hunt, cant 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。
篇17:描写动物的1500字作文
全文共 1507 字
+ 加入清单妞妞是我家的一只小狗,一只可爱的小花狗。
妞妞的毛一片黑一片白,看上去像穿了一件黑白相染的花衣裳。妞妞脸小小的,鼻子周围毛是白的,眼睛上的毛也是白的,真像台上演戏的三花脸。妞妞的嘴小巧玲珑,妞妞的鼻子像一颗粒黑葡萄,妞妞的眼睛小而有神。妞妞如果看到熟人,小眼睛放出的是亲切的柔光;如果看到生人,妞妞的眼睛放出的是质询的疑光;如果看到鬼鬼祟祟的人,妞妞的眼睛放出的是凶光。妞妞最玩皮也对人最亲热。我每次下班回家,妞妞听到自行车声便摇着尾巴从屋里跑出来,围着自行车围着人的身子来回跳个不停。高兴时还汪汪叫着在院里跑个来回,然后再跑到我的身边斜着身瞪着眼呆呆地望着玩个花样。妞妞特别喜欢跟人到花园去玩。妞妞每次到花园总是兴奋得又跑又跳又叫,看到人不管认识不认识都会甩着尾巴表示亲热。有时妞妞正在草地上玩耍,忽然看见落在地上觅食的麻雀、花丛间飞舞的蝴蝶和低飞的蜻蜓,就会一窜一跳地迎上去捉,麻雀飞了蜻蜓飞了蝴蝶也飞了,妞妞会生气地瞪着眼冲着天空汪汪叫上一阵,好像再说:“怎么不和我玩呢?”
妞妞是只懂事的狗,妞妞别看不会说话可会给人劝架。有一次我和妻子因家务事吵起了架,妻子大声我也大声,吵得水火不溶,吵得好像就要过不成了。妞妞卧在地上伤心地望望妻子又望望我,好像再问:“吵什么呢?不会不吵吗!”忽然妞妞站了起来,忽然妞妞跳到妻子的怀里用柔软的舌头舔妻子的嘴巴,边舔边摇尾巴,边舔边做着亲热的动作。妻子不吭声了,忽然妞妞又从妻子怀里跳下来又跑到我身边,跳到我身上用温和的小舌头吃力地舔我的脸,直到我也不吭声为止。看到不吵架了,妞妞高兴地跑到这个跟前扒一下又跑到那个跟前扒一下,兴奋地汪汪叫几声以示庆贺!
妞妞既给我家带来了乐趣也惹出了不少的麻烦。犬类动物的一大特点就是护子护食。可妞妞不但护子护食而且还护财护主。亲戚邻居到我家串门妞妞总是瞪着眼睛注视着来人,我让烟让糖块让水果,妞妞一直看着,看到客人接着我让的东西就会冲着人家大声汪汪地咬,如果客人把手里拿的东西放下了妞妞也就不咬了。更有甚者妞妞还护主。有一次我带妞妞到颖河花园里玩,遇到一位同学。这位同学说话爱指手画脚爱高腔大嗓门。我们俩站在花园的一棵柳树下聊天,聊到高兴处那位同学又指手又画脚,大嗓门惊得树上的雀儿都飞走了。妞妞看到后呜的一声就扑了上去,咬着了那位同学的裤子。我赶紧喝着了妞妞,然后向那位同学赔礼道歉。那位同学生气地说:“你咋弄这样一只狗,咋样这样一只狗,太怕人了。”我说:“你说话高腔大嗓,你说话指手画脚,妞妞以为你要打我,妞妞以为你和我吵架,它是在帮主人呵”!
妞妞到我家一年后做了母亲,妞妞一窝下了六个可爱的小宝宝。做了母亲的妞妞 可凶了,做了母亲的妞妞 只要听到陌生人的脚步声就瞪着眼珠子汪汪狂叫。做了母亲的妞妞开始咬人了,不管是谁只要看它的小宝宝就咬。妞妞变得脾气暴燥,妞妞特别恨到我家看狗娃的人。妞妞咬人是毫不顾忌的,妞妞咬人是出奇不意的,妞妞咬人是不分大小老幼的。短短一个月内妞妞就咬着五六人,我家为此付出了500多元的医疗费用。妞妞被人认为是一条恶狗,一条十恶不赦的小恶狗。妞妞遭到了邻居诅咒和谩骂,妞妞造成了我家和邻居家的不和。虽然妞妞看见家人回来还是又摇尾巴又跳跃,虽然妞妞还做些讨主人欢心和劝家人不要争吵的动作,可我们对妞妞由喜欢到唾弃,由唾弃到仇恨。我们把妞妞拴了起来,我们把妞妞关在了屋里。妞妞自由惯了,妞妞受不了被拴被关的拘束,妞妞整天是又叫又跳,吵得人睡不好觉。终于在小狗娃一个多月后我们家经过商量决定留小送大,留下两只小狗把妞妞送到乡下亲戚家里去。乡下亲戚家是独居院,换一个新环境也许会改变妞妞的脾性。
[描写动物的1500字作文
篇18:描写动物作文西瓜虫
全文共 403 字
+ 加入清单西瓜虫是一只卷起来特别像西瓜的小虫子,小动物作文200。它有七对足,有一对触角,从外型来看它似乎没有头,胸,腹之分。它只是那么慢慢儿,慢慢儿地想逃出我的手掌心,可这终归是不可能的。
学校里的西瓜虫不多,而且很难捉,不过我很幸运,最终还是得到了一只不怕人的小东西。
当这小东西刚接触到我的手掌时,我只是觉得手心痒痒的,我就怕这小东西咬我一口,不过时间久了,我和它似乎都了解了对方,也不那么不自在了。
那天,我把我心爱的西瓜虫放在手上让它自由自在地爬,可是由于我的失误,这小小的,微不足道的西瓜虫一下子从我的手掌掉入了“万丈深渊”。从地面上把它捡起来,它的行动忽然变得很迟钝,爬的速度明显地慢了,只是趴在那不停地摆动着那对触角。我把蛋黄喂给它吃,它对此“视而不见”……呀,它到底是怎么了?就连趴,它也趴不动了,它难道就要一命呜呼了吗?
我将自己的铅笔盒作为它宽敞的家,很长时间之后,它不动了,卷成一个小小的“西瓜”……
篇19:描写秋天的花园英语
全文共 640 字
+ 加入清单Autumn weather is clear, breeze Xu to.
The flowers in the garden are colorful and colorful. There are lovely trumpet, like a small speaker. There are blood red roses, you see it red face, too cute! There are yellow tulips, smell a smell, really fragrant!
Here the grass color is different, there are dark green, light green, there are green and yellow and white. Suddenly a sudden wind blowing, flowers and grass like a bit of a singer, singing from the first wonderful march, really lively it!
These wonderful march, caused a group of small bees and dancing butterflies, they sing and dance, held a grand dance.
Autumn garden really beautiful!
篇20:,描写一件难忘的事英语作文
全文共 1363 字
+ 加入清单Ive been through many things since childhood, and the most memorable thing happened on Christmas day several years ago.
I heard that Santa Claus would give the lovely baby a gift on Christmas day. I went to bed early that night and hoped that when I woke up in the morning of the second day, there would be a dream assembly toy at the head of my bed. Second day open eyes, wow! I really have a pillow next to the toy box.
"Mom, mom! Santa came over last night really gave me a toy." "I was so happy that I ran out of my bedroom with my toys in my arms without socks," I shouted to my mother. My mother smiled and said: "as long as the babys good, Santa will give him a gift."
"The Santa Claus from what place in? I had no chimney, the window is so high, will not hurt him? How did he know that I love the toy?" I asked very much puzzled.
"Santa Claus not only plays tricks, but also guesses," he said."
"Oh, that came over Santa and on TV like?" I asked.
"Silly boy, ha ha ha ha," my sister laughed angrily. "What Santa Claus is there?" she said. "Thats my mother on your bedside."."
"No, no! Its Santa Claus! Not Mommy!"." I excused myself, looking at my mother for help. My mother only smiled but did not reply.
Finally, in my strong request, my mother was forced to say, "she sent me," I suddenly realized. I remember it so much now that I remember it for a long time.