关于保护动物的一篇英语作文（精品20篇）

【作文题目】保护濒危动物

要求：1.以约30个词概括短文的内容要点;

2.然后，以约120个词就“endangered animals”的主题发表看法，内容包括：

(1)濒危动物的现状;

(2)就如何改变这个现状，谈谈你的看法;

(3)假如你是濒危动物的一员，你如何呼吁人们关注濒危动物。

范文

There are more and more endangered animals at present,so how to protect them has been our task of top priority . Its wrong for people to hunt animals for their meat and feather,for they are our good friends.We should protect them instead of killing them.Giant pandas,which are one of the endangered animals,live in the forests and live on bamboo lealves.They can just live safely in the natural protection zones.We should stop killing animal and protect them.

目前，濒危的动物正在日益剧增。如何保护濒危动物成了我们的当务之急。人们疯狂的捕杀动物，为了它们的肉、皮毛。我们这样做是不对的，因为动物是我们的朋友，我们应该保护它们，而不是将它们赶尽杀绝。大熊猫就是濒危动物的代表，它生活在森林里，以竹子为食，它们仅仅依靠着自然保护区生存。我们应该停止对动物们的捕杀，更好地保护它们

Environment is a basic human existence conditions, if we destroy the environment, it is ruined our survival conditions.

At present, the ecological environment is becoming more and more bad, is the greatest influence on our water resources. According to the relevant information reported: the laying of drainage system and detergent used to grow, consume the oxygen in the water, fish died, deterioration of ecosystem. Human activities can make a lot of industrial and agricultural pollutants into the water, the water is polluted. The world each year about 4200 sewage into the river, polluting the 5. 5 trillion of fresh water.

This is how the startling fact, protect the environment is everyone duty, why want to destroy?

Lies a small river near my grandmas home, on the bottom, before my sister and brother in ones childhood often swimming in the river, and their friends to play in the water, uncles and aunts are often in the river to wash clothes, wash dishes, and now, near the river built a chemical plant, the production of waste water discharge into the river, originally the bottom stream gradually turned into a black sending out the smell of the river. The adults never go to the river to wash clothes to wash the dishes, friends never go to the river to play, too!

How I miss the crystal-clear stream! I think: cherish resources, good care environment, these are GongZaiDangDai, force and art event! If we are in such polluted water, that we can use water resources will be less and less, we destroy the environment, is destroying our living conditions.

Let us join hands to jointly protect the environment, dont let water into water, protect the environment, is our common responsibility!

环境是一个人类生存最基本的条件，如果我们破坏了环境，这等于破坏了我们生存的条件。

目前，生态环境日益恶劣，对我们影响最大的就是水资源。据有关资料报道：排水系统的铺设和清洁剂的使用有增无减，消耗水中的氧，使鱼类死亡，生态系统恶化。人类的活动会使大量的工业、农业污染物排入水中，使水受到污染。全世界每年约有4200多亿的污水排入河中，污染了5。5万亿的淡水。

这是多么让人触目惊心的事实啊，保护环境是人人有责的，为什么要破坏呢?

我外婆家附近有一条小河，以前清澈见底，我的姐姐、哥哥小时候常常在小河里游泳，和他们的小伙伴们在水中嬉戏，叔叔、阿姨们也常常在这小河中洗衣服、洗菜，而如今，小河旁建造了一个化工厂，把生产的废水排放到河里，原本那清澈见底的小河渐渐变成了黑黑的散发着怪味的小河。大人们再也不去小河洗衣服洗菜了，小伙伴们也再也不去河里嬉戏!

我多么怀念那条清澈见底的小河啊!我想：珍惜资源，爱护环境，这些都是功在当代、力及千秋的大事啊!如果我们在这样污染水，那我们可以用的水资源就会越来越少，我们破坏环境，就是破坏我们生存的条件。

让我们携起手来，共同保护环境，不要让淡水变成污水，保护环境，是我们共同的责任!

If you really love and want to protect their birds, then: What kind of bird you do not raise!

Because there does not belong to a bird cage is not their natural attribution! And then a large cage is not!

The vast land of endless blue sky is their home!

Freedom is part of each birds life!

And those around you and then tell you to do the same thing! And refused to eat any non-breeding birds, eggs! Do not buy any use of wild birds, feathers, or other organs do arts and crafts!

Then, if you have a spare then please contribute to the Association for the Protection of Birds, as volunteers, willing to publicize knowledge of the Protection of Birds

Please send them to their friends as human beings who are not and never will be the master!

The Protection of Birds

1, to contain the phenomenon of hunting

Is a lot of expensive, rare birds has become the food on the table, people kill objects. A serious problem has been exposed, to know If you do not take measures on a shotgun I think people will be the last bullet for themselves.

The first is "blocking" is to strengthen the intensity of market management, block of wild animals in the market, distribution channels, those measures were the reason to kill wild animals will be set the expense of France, still go its own way, wantonly killing of wild animals, a great The reason is because the wild animals get sold on the market can Maihao price. Measures to kill the game as long as they can not be sold in the market, and will be punished by law, then hunting of wild animals, the phenomenon would be greatly reduced.

The second is "Shu" is to strengthen publicity and education of the people, so that people from the very recognition of the importance of protecting wild animals, so that people have the concept of the rule of law in this regard is only to clear the peoples ideological obstacles to practical action in do the work of protecting wild animals, Mao Zedong once said: "The people are in this war." Therefore, to fight this war, the protection of wild animals, we must do the peoples work.

The third is the "fight", that is, the people on the basis of clear, in-depth relied on the people, the establishment of various reporting system, where upon receipt of illegal killing, selling message, it should immediately launch an attack. Which one dares to abandon the expense of France, then waiting for him will be the legal penalties, not soft. "Beating" is a means, only the crackdown, in order to protect wildlife resources.

The fourth is to "maintain", that is, the protection of wild resources, based on the appropriate to meet the needs of the people to establish a base of wild animal husbandry. Many birds have a high food value, medicinal value. Bird could sideline the rural economy be promoted so that farmers towards the road to riches; objectively has reduced the peoples nature to kill wild animals to protect a limited number of animal resources. This can serve two too, why not?

2, the establishment of protection agencies to combat illegal hunting

Animals are friends of human beings. Most of them are lovely. I like giraffe the most. They are very tall and have many brown spots. They have very long necks, so that they can eat the leaves in high trees. Giraffes are gentle and lovely. They are friendly to people. When I go to the zoo, I always look at them. They move slowly. I can’t keep it as a pet, because it’s so huge. It’s a big pity.

动物是人类的朋友，大部分的动物都很可爱。我最喜欢的是长颈鹿，它们很高而且又很多棕色斑点。它们的颈很长因此可以吃到大树上的叶子。长颈鹿温驯可爱，它们对人类很友善。当我去动物园的时候我总喜欢去看它们。它们动作缓慢。我不能把它当宠物因为它太大了，这有点遗憾。

每年四月的第二周，是上海四鸟周。其实，我们不仅仅要保护鸟类，还应当保护野生动物，保护环境!

截止目前，上海分布有陆生野生动物四百八十余种：鸟类三百九十七种，兽类四十二种，两栖类十四种和爬行类三十六种。野生动物的数量正在日益减少!动物们是人类的朋友，是社会的财富，我们应当保护好它们!

动物是人类的朋友，植物是大自然的天然屏障;谈水是我们的生命之泉;而环境则是大自然赐给我们的宝贵财富!我简直不能想象没有动物、植物、淡水和环境的生活是什么样儿的!人们总是把“环保”这个词挂在嘴边，但始终没有采取行动!

大自然已经向我们人类发出了危险的警告，如果再不保护环境的话，是会遭到大自然的报复的。为了创造美好的环境，我们要珍惜大自然的每一份礼物，从自己做起，从小事做起，保护有限的自然之源，保护人类赖以生存的环境!

愿我们的生活更加美好!

老虎是生活在食物链顶端的一种动物，它关系到整个生物链的平衡。因此，保护老虎不单单是保护老虎这么一个物种的问题，而是保护整个食物链完整性的问题。

目前分布于我国的四个老虎亚种（东北虎、华南虎、孟加拉虎和印支虎）中，惟有华南虎是中国独有的。19世纪以前，华南虎曾经广泛分布于以我国东南部为主的国内广大地区。20世纪后，由于自然环境变迁、战乱纷扰及人类活动影响等多方面的原因，华南虎的分布区域不断受到挤压，分布地域面积逐渐缩校直至上个世纪80年代以前，由于捕猎和砍伐森林等活动，使华南虎赖以生存的栖息地受到破坏，华南虎的数量急剧减少。

据以往调查估算，目前中国处于野生状态的华南虎仅有20至30只，养殖在中国动物园里的数量也仅有60只，这仪数量比大熊猫还要稀少。在最近的一次野外考察中，甚至没有发现活的野生华南虎个体，华南虎已接近物种灭绝的边缘。

国家林业局全国野生动植物研究与发展中心的副研究员陆军介绍说，由于动物园中的数量有限，用于交配的华南虎之间的血缘关系越来越亲近，目前有的新产虎崽已经开始出现短尾（尾巴短一结）的现象。毫无疑问，如果任由这一趋势发展下去，在不久的将来，这一世界最濒危动物将不复存在。

透过虎类这一典型的例子，我们更应该保护动物，从自己做起，从他人做起，从身边的小事做起。让我们行动起来保护野生动物，共建和平家园世界将变得更美好。

[保护野生动物,共建和平家园作文

Environmental problems are being more and more serious all over the world。

For example， cars have made the air unhealthy for people to breathe and

poisonous gas is given off by factories。 Trees on the hills have been cut down

and waste water is being poured continuously into rivers。Furthermore， wherever

we go today， we can find rubbish carelessly disposed。 Pollution is， in fact，

threatening our existence。

The earth is our home and we have the duty to take care of it for ourselves

and for our later generations。 Fortunately， more and more people have realized

these problems。 Measures have been taken to cope with these problems by the

government。 Laws have been passed to stop pollution。 I hope the problem will be

solved in the near future and our home will bee better and better。

The earth is the mother of mankind, the earth is our common home. We like clear water, blue sky, like watching seagulls flying; we like ice Piao, like to listen to Greenfield roar; we like to fly warbler grass long, like to listen to birds singing; we like to see the sea in the early morning sunrise, like a few nights at least Stars days. We hope that our earth more beautiful and more beautiful.

However, due to irrational development, because the waste of natural resources, global ecological damage, pollution of all kinds more serious. Now, the world each year 600 million hectares of land become desert, 20 million hectares of forests are disappearing, the average of one hour there is a kind of species extinction. Also, the Earths temperatures are rising, the Antarctic ice cap began to melt, sea-level will continue to rise, many of the worlds coastal cities, islands, and large areas of land will be swallowed seawater. So, care for the environment is our common responsibility. As a small owner of Earth, we have to mind the world, look around. In life without one-time items; in a timely manner wash off the faucet; multi-curved waist do not litter anywhere in the threw peel; more than walk a few steps without crossing the green belt; many people around to remind the attention of environmental protection together.

Environmental protection is a long-term and arduous task, let us start from a small, start now to make our planet more beautiful environment, climate and better!

Blue whale is the worlds largest animal, the body was blue-gray. Now catch the l argest blue whale to the site in the Atlan tic near the Falklands. This 33.5 m long b lue whale, weighing 195 tons that is muc h greater than its tongue elephant weigh ing about 3 tons of its 700 kg heart weig ht, lung weight 1500 kg, the total blood weight of about 8 tons to 9 tons, intestin es are half a mile long. Such a large bod y can only live in the vast ocean. Whale i s an outstanding singer in water, "singer" When push "humpback." In 1971, biologi sts from the United States under the sea seeking the "humpback" voice is analyze d and found a very special sound signals . The original of these "humpback" issue d a series of beautiful sounds, sound mil dly varying tone. These sounds continue d for 30 minutes, then sing from scratch, from the cadence, to judge the degree of light sweet Man, can travel to sea whale s never lost. Usefulness of the people all the whales is very good, a lot of dead wh ales now, so that human beings are to b e discarded, we need to protect the whal es, so they continue to multiply Health h abitat. Let people according to their ben efits, create more advanced equipment, whale is a human friend. Why touch? Yes , I have here a bit information: whales, s ea travel will not get lost all use of the w hale is a very good person, and now a la rge number of dead whales, so that hum an beings are discarded, we need to pro tect whales, so that they continue to suff er from habitat reproduction. Let people according to their benefits, create more advanced equipment, whale is a human friend. Whales every day to sleep. Sleep, always a few heads together, and if ther e are sound, they scattered and went aw ay. Whales can live for decades or a cent ury.

蓝鲸是世界上最大的动物，全身呈蓝灰色 。目前捕到的最大的蓝鲸地点在大西洋的 福克兰群岛附近。这条蓝鲸长33.5米，体 重195吨这远比大象大得多了它的舌头重 约3吨它的心脏重700公斤，肺重1500公 斤,血液总重量约为8吨～9吨,肠子有半里 路长。这样大的躯体只能生活在浩瀚的海 洋中。鲸是歌唱家 水中杰出的“歌唱家”当 推“座头鲸”。1971年，美国生物学家对从 海上寻下的“座头鲸”发声进行了分析，发 现了极其特殊的声音信号。原来这些“座 头鲸”发出一连串优美动听、调子不一的 婉转声。这些声音延续了30分钟，然后 从头唱起，从抑扬顿挫、轻曼悦耳的程度 判断，可鲸遨游大海时从来不会迷失方向 。鲸的种种用处对人是很有好处的，现在 鲸大量的死亡，使人类也走向灭亡，我们 要保护鲸类，让它们继续生栖繁衍。让人 们根据它们的好处，制造出更先进的仪器 ，鲸是人类的朋友。 为什摸?不错，我 这里还有一点资料： 鲸遨游大海不会迷 航 鲸的种种用处对人是很有好处的，现 在鲸大量的死亡，使人类也走向灭亡，我 们要保护鲸类，让它们继续生栖繁衍。让 人们根据它们的好处，制造出更先进的仪 器，鲸是人类的朋友。 鲸每天都睡觉.睡 觉时,总是几头聚在一起,要是有响声,它们 就四散游开. 鲸可以活几十年或一百年.

Through observation, I found that plastic bags on peoples harm and pollution is very large. People often use plastic bags: mother to buy food and plastic bags; to shopping malls with plastic bags; in the restaurant to eat rice is also packaged with plastic bags to take home; even I buy stationery also with plastic bags. People do not know what they do to the environment caused by pollution, their own body caused any harm. Such as: people often put useless plastic bags thrown into the garbage, plastic bags in the rubbish will be smelly, so that the pollution of the air. People also throw plastic bags anywhere, a wind, plastic bags flying in the sky, the branches also see the tree is a plastic bag, and even the river there are plastic bags. This plastic bag in addition to pollution of the air, but also polluted our water resources.

We should raise peoples awareness, tell us the neighbors and friends and family together to beautify our environment. On the road to see the plastic bag quickly picked up, immediately took it to the garbage disposal. We want to start from my use less plastic bags, so that my mother every day to buy food or shopping when they first take their own bags, this is not very environmentally friendly? Or can use their own holding things as far as possible by hand, no plastic bags.

As the saying goes: "to protect the environment, everyone is responsible" We have to protect the home environment out of a force.

[关于保护环境的英语主题作文

Today I am very glad here to share my opinionsabout the protection of environment.

With the development ofscience and technology ,different kinds of pollution has been produced andcaused global concern recently.

As we know, people have beenliving on the earth for thousands of years, human activity damaged natural environment, such as excessive abuse of natural resources ,the sewage dischargedfrom factories ,the animal slaughter ,kinds of chemical fertilizers andgreen-house effect. All that is mentioned above has a bad impact on the eco-system .Now, many animals aredying out. We are suffering from unhealthy food and water, we are faced withharmful rays and global warming. It was ourselves who had made a series oftroubles. As you can see, we are the final victim.

Above all, if we human beings cannot recognize theseserious problems and try our best to solve them soon, we would finally lose theenvironment suitable for us to live. So, it is our duty to protect theenvironment ,but what should we do to protect it?

In my opinion, the first and important thing is tounite all forces ,that is to say---gather all hearts together. Next we shouldprotect and plant more trees, which can dispose of the dust in the air. As forfamilies, it is effective to ride bicycles rather than drive cars. Don’t litteranywhere as you like. In addition, sorting and recycling the rubbish also playan essential role in the protection of our earth. We’d better call on everyone aroundus to lead a low-carbon life, as it may make a difference to the environment.

Thus, it’s high time that we did something to improveour surroundings. Everybody should raise the awareness to protect our motherearth. Let’s appeal to more people to join us.

All in all ,there’s no doubt that keeping the balanceof human and nature ,we will benefit a lot.

Thank you for listening！

导语：近年来,环境保护仍存在许多问题。其中最严重的问题之一是空气、水和土壤的严重污染。下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

There are still many problems of environmental protection in recent years. One of the most serious problems is the serious pollution of air, water and soil. the polluted air does great harm to people s health. The polluted water causes diseases and death. What is more, vegetation had been greatly reduced with the rapid growth of modern cities.

To protect the environment, governments of many countries have done a lot. Legislative steps have been introduced to control air pollution, to protect the forest and sea resources and to stop any environmental pollution. Therefore, governments are playing the most important role in the environmental protection today.

In my opinion, to protect environment, the government must take even more concrete measures. First, it should let people fully realize the importance of environmental protection through education. Second, much more efforts should be made to put the population planning policy into practice, because more people means more people means more pollution. Finally, those who destroy the environment intentionally should be severely punished. We should let them know that destroying environment means destroying mankind themselves.

【参考译文】

近年来,环境保护仍存在许多问题。其中最严重的问题之一是空气、水和土壤的严重污染。污染的空气对人体健康有害。污染的水导致疾病和死亡。此外,随着现代城市的快速发展,植被已大大减少。

为了保护环境,许多国家的政府做了很多。已采取立法步骤控制空气污染,保护森林和海洋资源,制止任何环境污染。因此,政府在今天的环境保护中发挥着最重要的作用。

我认为,要保护环境,政府必须采取更具体的措施。首先,它应该让人们通过教育充分认识到环境保护的重要性。第二,应该更加努力使人口规划政策付诸实践,因为更多的人意味着更多的人意味着更多的污染。最后,故意破坏环境的人应该受到严惩。我们应该让他们知道破坏环境意味着毁灭人类自己。

在我童年的回忆中,只养过一个小小的宠物,大家知道是什么吗?一只可爱的小乌龟!

小乌龟是我从市场上购买的,那个卖乌龟的阿姨告诉我,这种小乌龟永远长不大.听了阿姨的话,我对这只可爱的小乌龟更加的好奇了.

小乌龟有一个硬邦邦的壳儿,这可是它的“保护伞”哟!它的壳儿是翠绿色的,上面排满了六边形的团,下面也是由六边形的团组成的,只不过是乳白色的；小乌龟的头一旦有东西碰到了,酒会快速和两队足一起收回壳儿里,显得它特别小心谨慎.这只小乌龟很特被,头上有个菱形的小红点,特像个“小剑客”.小乌龟的眼睛水灵灵的、大大的,下面长着一张“樱桃小嘴”；再说说小乌龟的四肢.它虽然爬得很慢,但动作却很迅速,四肢很灵活；小乌龟有一根小瞧的尾巴,细得像根毛线.这根小尾巴平时伸出来时一摆一摆的可爱极了!

第一天把小乌龟买回来是它在小鱼缸里一动也不动的,我还以为它死了呢!过了一段时间,在我和外婆的精心照料下,小乌龟终于肯把头伸出来了,但有脚步声,它又把头和四肢都收回了它那硬邦邦的“保护伞”里.又过了一段时间；小乌龟终于和我像好朋友一样,非常开心.

小乌龟喜欢住在有水的地方（水不能太深）、喜欢吃颗粒较小的龟食、喜欢在平地上玩耍……

动物是人类的朋友,让我们亲近动物、关爱动物、保护动物,让我们从身边做起、从小事做起,让动物和人类成为真正的好朋友!

My favorite animals are rabbits. Rabbit is very cute, chubby, hairy. Its head is small, two long ears, like two big fan inserted in the head, as long as there is a little static and dynamic, it will be kept on the ears before and after the swing. It is particularly beautiful eyes. It also has an endearing three mouth, the above two, the following one. Jigen on both sides of the mouth are thin beard, it always put the two long vertical whiskers were straight, and appears to be very spirited. Small rabbits love to eat green vegetables, red radish, but it is still the most favorite carrot. Rabbit likes to play on the lawn, it danced on the lawn, never mind played with more fun.

Rabbits are very docile personality. It tenaciously to protect their own: it could run very fast to see the wolves, tigers, lions and so on, it flew drilling holes; if hawk Diao it, it will be overturned, with four legs to go into eagle; I very fond of rabbits

我最喜欢的动物是兔子。兔子很可爱,胖胖的,毛茸茸的。它的头很小,两个长耳朵,像两个大风扇插在头上,只要有一点静态和动态,它将保存在耳朵前后摇摆。这是特别美丽的眼睛。它也有一个可爱的三个口,上面两个,下面一个。Jigen两边的口是薄的胡须,它总是把两个长垂直胡须直,和似乎很激烈。小兔子爱吃青菜,红色的萝卜,但它仍然是最喜欢的胡萝卜。兔子喜欢在草坪上玩,它在草坪上跳舞,更不用说玩更有趣。

兔子很温顺的性格。它坚持地保护自己的:它可以跑得很快看到狼,老虎,狮子等等,它飞钻孔;如果鹰叼它,它将被推翻,四条腿进入鹰,我非常喜欢兔子

动物与我们人类一样，有思想，有感情，也有它们自己的生活方式，更有自由权。

Animal and human, thoughts, feelings, have their own way of life, more freedom.

我们不应该去破坏他们安详和谐的生活，我们也无权去破坏他们的生活，当然，更没有理由去指责伤害他们。

We should not go to destroy their peaceful and harmonious life, we have no right to destroy their life, of course, theres no reason to blame them.

每当我们的饭桌旁摆上一道道香喷喷的菜，比如：蛇、青蛙、等动物。我们是不是应该想一想，我们每吃一种动物，就等于放走了多少对农民对庄家有害的虫。我们更是不是也应该换位思考一下，它们都在齐心协力的抓害虫，可人类不但不领情，反而把它们当做他们的食物，当作我们人类每天赚钱的东西，他们是多么可恶呀!

When we put on the table a tasty dish, such as: snake, frog, and other animal. We Shi Bushi should think, each of us to eat an animal, is tantamount to let go of the number of farmers to the harmful insects. We Shi Bushi should also think about, they all make concerted efforts to catch insects, human can not only do not appreciate, but put them as their food, as we human beings to make money every day things, how they are hateful!

如今，地球上的许多生物已经很罕见了，甚至有的已经濒临灭绝了!如果地球上没有了动物，地球将会变成什么样，人类又将会变成什么样?

Now, a lot of life on earth is very rare, and even some on the verge of extinction! If there were no animal, the earth will become what, and humans will become what?

我想，是我们人类好好反省的时候了，如果再这样下去的话，我们将会成为动物们的敌人了，更别谈什么“与狼共舞”

I think, when we reflect on the human, if this goes on, we will be the animal enemies, not to mention what "dances with wolves"

人类，快点醒醒吧!保护野生动物，现在开始，还来得及!

Man, come on come on! The protection of wild animal, now, before it is too late!

There are more and more endangered animals at present，so how to protect them has been our task of top priority .Its wrong for people to hunt animals for their meat and feather，for they are our good friends。We should protect them instead of killing them。Giant pandas，which are one of the endangered animals，live in the forests and live on bamboo lealves。They can just live safely in the natural protection zones。We should stop killing animal and protect them。

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。

Animals are our friends。But how to protect them？ government is working to protect all animals in danger，and has made lots of plans to save animals。 On the other hand， we shouldn’t eat wild animals。We should keep them away from our dinner。 That way，there will not be wild animals on sale。 I think the hunters and killers will become fewer and fewer。

Last， we should protect the environment。We should stop people from cutting trees down。 Without trees， wild animals will lose their home。 And we will lose our animal friends。 All of us should try our best to protect animals。

We need to protect animals better。We should give them fresh water to drink。We should make the forests bigger for animals in danger to live in。We should advice people not to kill animals beacause they are our friends！

一天，风雨交加，树被风吹的东倒西歪，不料一只小鸟被风吹到了我家的阳台上，我一看小鸟受伤了我急忙把小鸟抱回屋里。 给他用棉花布置了一个温暖的小窝，每天给他吃一些食物，每天上学放学我都要看一.看小鸟的伤好了没有，可是意想不到的事情发生了一只大花猫从窗户外面，跑了进来，我看见了心想：“大花猫要做坏事了，这可怎没办呢？”我着急起来。于是我连忙对着大花猫喊:“大花猫，快出去别伤害小鸟。”大花猫像个聋子一样一步一步的靠近小鸟，我突然看见我们家的玩具小狗，我灵机一动想：“猫不很怕狗吗？”于是我便朝着大花猫大叫:“汪汪汪... ...大花猫喵喵叫了两声然后就跑了小鸟一天一天的好了，我看见小鸟的伤好了，我就把他给放了。

对了，我还保护过青蛙呢，不信？我就给你们一一说一说。 那天是星期天，爸爸和妈妈带着我一起去金顶山上玩，我一进门就被那里的风景迷住了，真是山清水秀，鸟语花香，走到了半山腰我看见了一个瀑布，我对妈妈说我想在这玩一会，妈妈一口同意了。我刚走到那就看见了许多小蝌蚪，我便捉了3只小蝌蚪带回家，小蝌蚪在我的精心喂养下，一天.两天. 一个月... ...小蝌蚪终于变成了小青蛙，我高兴的对妈妈说：“我的小蝌蚪变成小青蛙了，把小青蛙放回田野好吗？”妈妈答应了，星期天妈妈带我回到家乡的田野，我把小青蛙放了，小青蛙呱呱的叫两声然后一蹦一蹦的跳走了。

你对保护小动物的事情也很感兴趣吧！那么你也行动起来吧！

一天，小明走在安静的小路上，突然，他看见草丛里有什么东西。

小明走到草丛前，一看。啊!原来是一只小鸟受伤了。小明心想：这只小鸟好可怜，我还是带小鸟回自己家，给它包扎一下。他手忙脚乱地跑回家。拿起药箱，小心翼翼、轻手轻脚得给小鸟包扎起来了。小明费了九牛二虎之力才把小鸟地伤包扎完了。小明就把小鸟放在一个篮子里。还要每天喂它谷粒吃，真的好辛苦啊!过了几天，小鸟的伤完全康复了。小明就把小鸟放回了美丽的大森林里去了。小明又能看见小鸟在天空中翱翔。心想：我又做了一件保护动物的事情。小鸟也心想：人类是我们的好朋友。

It was a fine day today and the sun was bright. I visited Beijing Zoo with my classmate, He Song. The animals were so interesting that all the people loved them. When a bear asked for some food by waving its ann, a visitor threw something to it. At once I went up to him and said without thinking,Dont do that. Its bad for it. If you really love them, take good care of them. His face turned red and answered he wouldnt do that again.

今天是个风和日丽的好天，我和同学贺松去了北京动物园。动物们是那么可爱，大家都非常喜欢它们。一只熊挥动着胳膊向人们要吃的，一个游客就投进去了什么东西。我想都没想就走过去说：“不要那样做。你的做法对它们没好处。如果真的喜欢它们，就应该爱护它们。”他的脸红了，并且回答说他不会再那么做了。