保护眼睛的英语作业【汇集20篇】

Through the ages, the earth mother with sweet milk feeding countless generations. The original she was decorated lovely young players. But, now human to its own interests, tortured her. Humans have only one earth; And the earth is facing serious environmental crisis. "Save the earth" has become the strongest voice people all over the world.

I feel heartache for the deterioration of the environment, I think: as the future successors of teenagers, if dont understand the gravity of the composition of the human environment and environmental problems, ignoring the laws and regulations on environmental protection, not to strengthen environmental protection consciousness, consciously fulfill their obligation to protect the environment, our life will be destroyed in his hands, god will make a severe punishment for us. Therefore I was determined to start from me good care environment, protect our survival home, be a guard to protect the environment.

古往今来，地球妈妈用甘甜的乳汁哺育了无数代子孙。原来的她被小辈们装饰得楚楚动人。可是，现在人类为了自身的利益，将她折磨得天昏地暗。人类只有一个地球;而地球正面临着严峻的环境危机。“救救地球”已成为世界各国人民最强烈的呼声。

我为周围环境的恶化而感到心痛，我想：作为未来接班人的青少年，如果不了解人类环境的构成和环境问题的严重性，无视有关环境保护的法律法规，不去增强环境保护意识，自觉履行保护环境的义务的话，我们的生命将毁在自己的手中，老天将对我们作出严厉的惩罚。为此我下定决心要从我做起爱护环境，保护我们这个赖以生存的家园，做一个保护环境的卫士。

Panda is our country’s treasure,we should protect it.nowadays,we see from the TV that panda is less than before,it is not only because of the damage of the environment,but also the weakness of the panda.Everybody loves panda,it is so lovely,a panda has two black eyes,it is very lazy,it likes sleeping all the time.When we see its round body shape,we can’t help loving them.In order to see the lovely animal,we need to protect them.We must protect the environment,like not to throw the rubbish away,not to cut down the trees.We condemn such behavior that killing the animals.Protecting the animals is everybody’s job.

熊猫是我们国家的珍宝，我们应该保护它。现在，我们可以从电视上看到熊猫比以前少，这不仅因为环境的破坏，还因为熊猫自身的脆弱。

大家都喜欢熊猫，它很可爱，熊猫有两只黑色的眼睛，很懒，总是在睡觉。当我们看到熊猫圆圆的身形时，忍不住喜欢它们。

为了看到这些可爱的动物，我们需要保护它们。

我们必须保护环境，比如不随处扔垃圾，不砍伐树木。我们谴责杀动物的行为。保护动物，人人有责。

[怎么保护熊猫英语作文

Last Sunday my father and I went fishing along a river. We found the water so dirty that we could hardly catch fish in it.

A lot of factories along the river always poured their waste water and rubbish straight into the river which made the river water polluted. In this way most of the fish in the river were killed.

If the river water all over the country is polluted like this， no living things will exist in the water. As we all know， environmental pollution does great harm to living things and human beings. Now more and more people have come to realize how serious this problem is. Our government is doing her best to take measures to fight against pollution. We expect that the water in every river will be made cleaner and cleaner before long.

上个星期日我和爸爸一起去钓鱼。我们发现水太脏了，我们几乎不能在它的鱼。

沿着这条河的许多工厂总是把废水和垃圾倒进河里，使河水受到污染。这样，河里的大部分鱼都被杀死了。

如果这个国家的河水都被污染了，水里就不存在生物。我们都知道，环境污染对生物和人类都有很大的危害。现在越来越多的人开始意识到这个问题有多严重。我国政府正在尽最大努力采取措施打击污染。我们期望在每一条河流中的水将在长时间内变得更清洁，更清洁。

Environmental Protection

环境保护

Today the quality of our natural environment has become an important issue. The world population is rising so quickly that the world has become too crowded. We are using up our natural resources and at the same time polluting our environment with dangerous chemicals. If we continue to do this, life on earth cannot survive.

现如今我们的自然环境已经成为一个重要问题。世界人口增长如此之快以至于世界已经变得过于拥挤。我们在消耗自然资源的同时危险化学物品污染着我们生存的环境。如果我们继续这样下去，地球上的生物将不能生存。

Concerned people have made some progress in environmental protection. Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution.

相关人士在环境保护方面做出了一些进展。许多国家的政府已经建立法律来保护大气，森林和海洋资源以停止环境污染。

Still more measures should be taken to solve environmental problems. People should be further educated to recognize the importance of the problems, to use modern methods of birth control, to conserve(保存) our natural resources and recycle(再循环) our products. We are sure that we can have a better and cleaner place in the future.

同时更应该采取措施来解决环境问题。应该进一步教育人们认识到问题的重要性，应用现代的生产控制方法来节约我们的自然资源和实现产品的再循环。我们相信在将来我们会拥有一个更好的更干净的生存之地。

[初中生环境保护英语作文

Animal Protection

Animal is the friend of mankind, is an important part of the natural ecosystem. It is human precious naturalresources. Protect animals to maintain natural ecological balance has important significance.

But now many animals are facing the danger of extinction.With the development of society, pesticide used and serious pollution, city sewage .The wild animal living area is becoming increasingly narrow. Many of the animal is facing a food crisis currently . Whats more, in order to obtain wild animal of precious materials, humans are killing animals.

In order to maintain ecological balance, we should take some effective measures to protect animals.We should develop pollution standards to reduce emission of toxic substances, prevent the killing of some rare animals strictly. We can also establish a national park as a wild animal protection area. The most important thing is to improve people s knowledge of animal care.

Let us join hands in creating a harmonious coexistence of human and animal beautiful homes!

Weekend Homework

There should be no more weekend homework for us students. Six days devoted to school are enough for us modern students, who have many other interests. With homework to do on Sundays, when can we find time to help around the house, join in a football or baseball game or see a good film, or just have a rest? Because of all these other activities, weekend homework is usually put off until Sunday night. As a resuit, it is often done so poorly that on Mondays teachers always scold the whole class who have little idea of what the learned lessons are about. If there were no homework for the weekends, students would go to school on Mondays well rested and be willing to study.

Dear teachers, don＇t you agree with us?

周末作业

对于我们这些学生来说，周末不应该再有作业了。我们这些现在的学生都有很多其他的兴趣爱好，在学校六天的学习对于我们来说已经足够了。如果周日还要写作业的

话，我们什么时候才能帮忙做做家务，玩玩足球、棒球，看看电影或是休息休息呢?由于所有这些其他的活动，周末作业常常拖到星期天晚上才开始做。结果作业做得马马虎

虎，星期一全班同学把所学的课程忘得精光，惹得老师大发雷霆。如果周末没有作业的话，学生们就可以好好休息，星期一高高兴兴地去学校学习了。

亲爱的老师，您同意我们的意见吗?

[英语作文：周末作业

我们都知道,眼睛是非常重要的每一个人的生命。没有眼睛,不能享受美丽的大自然,日出的壮丽景象,爱朋友的眼睛以及丰富多彩的生活。作为学生,保护我们自己的眼睛是特别重要的,因为我们需要阅读,写作和学习。如果我们的眼睛生病,我们的研究将变得极其不方便,和我们的研究以及我们的情绪将会受其影响。并不完全在我们的期待,不是吗?

为了保护我们的眼睛,我们可以开始使用标准的阅读习惯。我们应该注意的第一件事是,我们不应该读很长时间,然后逃离光线过于强烈的环境或昏暗的灯光下看书。最后但并非最不重要,我们应该保持做眼保健操。希望你们所有的人的眼睛都是美丽和健康。

Many animals are in danger of dying out. As is clearly shown in the bar chart, the kinds of wild animals have decreased sharply in the past decades. With 30,000 wild animals reduced on average each year, there were only 1.5 million left till 2010.

There are several reasons accounting for this problem. Apart from the polluted environment and natural disasters, illegal killing is an important reason. Human beings are making attempts to hunt wild animals for fashion and a big profit, which can be seen vividly from the right picture. This has resulted in a sharp decrease in the number of animals.

In my opinion, it is high time for us to take quick action to protect them. A national public campaign should be launched to give animals a good living environment. In addition, the government should pass some firm laws to forbid abuse killing. Only in this way can we live in harmony with wild animals.

许多动物都面临灭绝的危险。显然这个柱状图所示,野生动物的种类急剧下降在过去的几十年。每年平均30000野生动物减少,只剩下150万到2010。

占这个问题有几个原因。除了环境污染和自然灾害,非法捕杀是一个重要的原因。人类正在试图猎杀野生动物对于时尚和一个很大的利润,从右边可以看到生动的画面。这导致了动物的数量急剧减少。

在我看来,我们是时候采取快速行动保护他们。国家公共活动应该推出给动物一个良好的生活环境。此外,政府应该通过一些公司法律禁止虐待杀害。只有用这种方法我们才能与野生动物和谐相处。

Giant Panda is our national treasure, the state can be said for the protection of giant pandas put a lot of human and material resources giant now has been the worlds people the protection and care, which is a good thing, of course, the Tibetan antelope as the countrys animal protection , The National People have been recognized, however, this tiger? The poor will be extinct Siberian tiger who is going to have a genuine concern and care a little bit?

According to statistics, the Siberian tiger left at present, less than 20, still such a small number of these survive, has had imagined. Two years ago, in the mountains of Huanren, Liaoning found to be a man to die under the presentation of the Siberian tiger, from this we can see that the above countries and the people of the importance we attach to it, this first Manchurian tiger is actually how the dead do not Conclusion, and the other is only from the northeast where hu came to the place where the wonder and the third is the matter did not rise to the national media in particular. This really puzzled the other person you! Is it really the other tiger who fear love is not worth it, it really fate of the Siberian tiger so?

Towering mountains should not unique to human beings, should not have dense forest unique to human beings, rivers clear this should not be unique to human beings, the Siberian tiger survival of this nature should not be unique to human beings. Siberian tiger to the left of a piece of heaven and earth to survive it, the High IQ is the human species, there are still ways to leave that piece of local survival, and the tiger have to leave that piece of the local dead; you save tigers, is the human population control, engage in Family planning, and the Siberian tiger is scarce Rending it! Now we can hear the cries of tigers in the future even the Siberian tiger can be heard the cries.

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.

在过去,有许多濒危动物。现在他们正在灭绝。关系呢?我们的环境已经受到他们的缺席?我们的生活质量已经改变了吗?这些问题的答案是“是的。”

是的。没关系如果我们摧毁一个濒危物种栖息地开发更多的农田,房屋或工业园区。有一个微妙的平衡。如果一小部分被删除,它将影响所有其他部分。例如,如果某些树木砍伐,蝙蝠没有栖息的地方。如果他们不能,他们不能繁殖。如果没有蝙蝠,不会有动物或鸟吃某些破坏庄稼的昆虫。

是的。我们的环境已经受到缺乏某些动物。某些花授粉的蝴蝶,从加拿大到墨西哥迁移。一些这些蝴蝶被毁的繁殖地。现在这些花从某些地区消失。我们将不再能享受他们的美丽。

是的。我们的生活质量已经改变了美国曾经覆盖着大树。现在我们要拜访他们在一个小公园。世界各地的热带雨林被砍伐,为人类。我们将永远无法看到或学习这个脆弱的生态系统。

我将鼓励我们人类去寻找其他替代品对于我们的农田,住房,和行业。我们选择;动物不会。

导语：我们要从我做起爱护环境，保护我们这个赖以生存的家园，做一个保护环境的卫士。下面是yuwenmi小编为大家整理的英语作文，欢迎阅读与借鉴，谢谢!

Through the ages, the earth mother with sweet milk feeding countless generations. The original she was decorated lovely young players. But, now human to its own interests, tortured her. Humans have only one earth; And the earth is facing serious environmental crisis. "Save the earth" has become the strongest voice people all over the world.

I feel heartache for the deterioration of the environment, I think: as the future successors of teenagers, if dont understand the gravity of the composition of the human environment and environmental problems, ignoring the laws and regulations on environmental protection, not to strengthen environmental protection consciousness, consciously fulfill their obligation to protect the environment, our life will be destroyed in his hands, god will make a severe punishment for us. Therefore I was determined to start from me good care environment, protect our survival home, be a guard to protect the environment.

【参考译文】

古往今来，地球妈妈用甘甜的乳汁哺育了无数代子孙。原来的她被小辈们装饰得楚楚动人。可是，现在人类为了自身的利益，将她折磨得天昏地暗。人类只有一个地球;而地球正面临着严峻的环境危机。“救救地球”已成为世界各国人民最强烈的呼声。

我为周围环境的恶化而感到心痛，我想：作为未来接班人的青少年，如果不了解人类环境的构成和环境问题的严重性，无视有关环境保护的法律法规，不去增强环境保护意识，自觉履行保护环境的义务的话，我们的生命将毁在自己的手中，老天将对我们作出严厉的惩罚。为此我下定决心要从我做起爱护环境，保护我们这个赖以生存的家园，做一个保护环境的卫士。

Why should we protect wildlife animals?

Do you know of any endangered animals?Why are they in danger?

I think there are many endangered animals in the world,such as tigers and pandas.When farmers cut down trees,tigers can no longer hide and hunt.Many tigers are killed by people who want to sell their fur for money.And there are few places where pandas can live.We are not alone in the world.We human beings could not live without all the plants and animals around us.So protecting wildlife animals are very important.We must take measures to keep plants from being destroyed and stop animals from being killed.If each of us can plant a tree and build a birdhouse,the world will be more beautiful.It is very easy but useful.

[关于保护动物的小学生英语作文

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.

According to my collection to a report said:"the environment problem is due to human is not reasonable to develop and make use of the natural source caused by environmental problems.Red main air pollution,water pollution,noise pollution,food contamination,not suitable development and utilization of natural resources it five categories." As one of the fact that we iron,they are like a demon ruthless swallowed with human life.It threatens the ecological balance,the harm to human health,and restricts the sustainable development of economy and society,it lets the human was in trouble.For this I make declared:"as long as we have not forgotten--human moment of the environmental protection consciousness,have the consciousness of the environment according to law,the global village will be beautiful paradise".The future of the sky of dark blue must be,water is clear,the green flowers,can enjoy the human nature with our happiness.

"The real test our environment is not words,but action contribution." Although I do is just some small things,but I firmly believe that if we all have the responsibility to protect the environment,from oneself,starts from the minor matter,starts to protect our homes,to human nature will be rewarded.In the cradle of warm-a prairie; In the smiling face of the kind-growth,source of love-bathing in the river

据我收集到的一份报告说:“环境问题是由于人类不合理开发和利用自然源所造成的环境问题。红主要空气污染、水污染、噪声污染、食品污染、不适当开发利用自然资源这五大类。“我们铁的事实,他们就像一个魔鬼无情的吞噬着人类的生命。它威胁着生态平衡,危害人类健康、制约经济和社会的可持续发展,它让人类陷入了困境。为此我宣称:“只要我们不忘记,人类的环境保护意识,依法环境的意识,地球村将美丽的天堂”。深蓝色的天空的未来是必须的,水是明确的,绿色的花,可以享受人性与我们的幸福。

“真正的考验我们的环境是没有话说,但是行动贡献。“虽然我做的只是一些小事,但我坚信,如果我们都有责任保护环境,从自己做起,从小事做起,开始保护我们的家园,人类自然会得到回报。在暖和的摇篮草原;kind-growth的笑脸,在河里love-bathing来源

吸烟对健康的危害往往使人想到呼吸系统疾病，可是吸烟还会导致视力受到影响，这不是危言耸听。

吸烟对眼睛造成最常见的危害是弱视。弱视，就是矫正视力低于0.8。吸烟导致弱视的原因，一是由于吸烟时人体吸入的氧气被消耗，致使血中氧的含量下降，而眼视网膜对缺氧格外敏感，长期下去，视神经纤维会发生变性，视网膜乳头黄斑区也会发生萎缩;二是烟草燃烧时产生的烟焦油会导致体内维生素B12的含量下降，而维生素B12是维持视神经正常功能所必需的营养物质。在这两者共同的影响下，使得吸烟者视力下降而发生弱视，严重者可致失明。

据医学家调查，在白内障病人中有20%与长期吸烟有关。而每天吸烟20支以上的人与不吸烟者相比，患白内障的可能性要高2倍。

另外，吸烟时吸入的尼古丁及一氧化碳等有害物质会使血管收缩、血小板凝集力亢进，由此导致视网膜中央血管栓塞、黄斑变性等致盲性眼病的发生。临床还观察到，吸烟者有时会有一过性眼压升高的现象，这在青光眼患者中尤为明显，青光眼病人本来眼压就高，如果再吸烟，无疑是雪上加霜。

同时，科学研究还明确指出，烟草也会导致眼睛周围的皱纹产生。即使自己不吸烟，也不应放松警惕，“二手烟”“三手烟”同样会摧残身心和容貌。因此，我们还是和烟草保持一定距离吧。

作文一：

My mother has a pair of keen eyes which can speak. With her eyes,she observed my mood, gave me courage and made me strong. Therefore, I could face difficulties.

When I was a baby learning to walk, my mother always lent me a hand and encouraged me to get up while I fell down. As I finally threw myself into her arms, her eyes smiled with praise. Later as I grew up, I met with more difficulties. But whenever I was frustrated, my mothers eyes always

gave me hope and encouragement. Once I failed in exams, my mother encouraged me to find out the reasons. Instead of blaming me she pushed me to do better. At last I overcame the difficulty. Now I have grown up and become more independent, but whenever I come across setbacks, my mothers eyes are always with me encouraging me wherever I go.

我母亲有一双敏锐的、会说话的眼睛。那双眼睛能洞察我的心情，给我鼓励，促我坚强，因此我能面对一切困难。

孩提学步时，妈妈总是帮助我，鼓励我摔倒了就爬起来。最后我晃晃悠悠地扑进她怀抱时，她的双眼充满了赞扬之情。成长过程中，我遇到了很多困难，但灰心失望时，妈妈的双眼总给我以希望和鼓励。一次我考试不及格，妈妈没有责备我，而是鼓励我找出原因，提高我的成绩。最后我终于度过了难关。现在，我长大了，不用再让她操心了。但每当遇到挫折时，妈妈的眼睛总是伴随着我，给我鼓励。

作文二：

My mother has a pair of keen eyes which can speak. Whenever I encounter difficulties, her eyes will encourage me and help me cheer up.

When I began learning to walk, mother always lent me a hand and encouraged me to stand up while I fell down. As I finally threw myself into her arms, her eyes Smiled with praise. Aftei I entered the school, mothers eyes still encouraged me. Once I failed my Chinese exam, my mother helped me find out the reasons instead of blaming me. Now I have grown up and become more independent, but whenever I come across setbacks, my mothers eyes are always with me encouraging me wherever I go.

我的母亲有一双敏锐的、会说话的眼睛。每当我遇到困难时，这双眼睛总是鼓励我，帮我振作起来。

在我开始学走路时，母亲总是帮助我，鼓励我摔倒了就爬起来。最后我晃晃悠悠扑进她怀抱时，她的双眼充满赞扬之情。我长大上学后，母亲的眼睛仍旧鼓励我。一次，我语文考试不及格，母亲没有责备我，而是帮助我找出原因。现在，我长大了，不再让她操心了。但每当我遇到挫折时，母亲的眼睛总是伴随着我，给我鼓励。

Dogs are passionate, friendly and the most important of all, faithful. Many people view dogs as their life-time friends or even partner. However, not every people know How to protect them. In this essay, I will introduce to you specifically about how to protect dogs.Sometimes dogs are brave defenders of our livestock, whereas sometimes they are as fragile as we are. Dogs should not be feed with salt, otherwise they will suffer from a hair loss. You need totake your dog out for a walk once in the morning and once in the afternoon to make sure it is having a healthy life. Dogs need to take regular check-ups as well, in case it is infected.There is a popular saying goes, "you may have many pets in your life, but your pets just have you in his life", which has moved many people. Please take good care of your dear pets. Their destinies are completely on your hands.

[保护流浪狗英语作文

Animals are our best friends. But there are many bad things about them. So we should try our best to protect animals.

First, let us know the status of the animal. Now, animals are facing very great danger. For example, there are many kinds of animals will die out. And there are many people eat precious and wild animals. They are nasty. As students, we should stop this behavior and protect animals.

Then, let us know we should how to protect animals. We should protect they habitat. If you see other people mindlessly trample animal homes, nicely remind them of the damage theyre causing. We can not also eat some wild animals. We should ask other people to protect them, too. Let we protect animals together!

With rapid development of society,the environment is becoming a more and more severe problem.Low carbon,is a new conception of the whole world.We should turned off the light when we dont use it.We can take bus instead of driving car to office.We shouldnt use plastic bag in supermaket as possible as we can.If we do that,we can have a promising future.

随着社会的快速发展，环境问题已经变得越来越严重了。低碳，是一个世界范围内的新兴概念。我们应该及时关掉不用的灯，我们应该更多的乘坐公共交通工具而不是私家车，我们在超市购物的时候不应该使用塑料袋，我们只有这样做了，我们的未来才会有希望。

We want to hold a green Olympic Games ,so everyone should do something

useful to protect the environment ,whether it is big or small.

We should do something to stop people from doing bad things to the

environment .We should put rubbish into dustbins instead of throwing it about.

Everyone must care for flowers ,grass and tress in public .We shound collect

things like paper ,plastic bags our neighborhood as well ,it’s necessary to

plant more trees every year .

It is everyone’s duty to make our neighborhood much better with our hands

minds .Let’s make a contribution to protecting the environment and the Plympic

Games successfully.

Protecting the environment and taking care of the earth is something we all should do.

Recently there are a lot of environment has been destroyed, around us there are many people in the destruction of the environment, cut down the trees, the birds were killed, flowers and plants have been burned, it is one thing for our warnings, the forests are disappear in every 375 square kilometers, the desert is evolving, flooded the countless individuals every beautiful homes, precious and there are ancient animals are killed, the panda has now been arrested, and so far only 1000 only, although there are a lot of people have built consciously protection station, but there are still some people for money by hook or by crook the killing of animals, birds no longer common, because being grabbed, trees less, because being cut, please protect them! If you go on like this, again, and the future of the animals we have learned in a book, according to people each with experts observation, day and night, a protective layer in the sky, the ozone hole, is because of the large hole lead to global warming, and the year before become very hot in the summer, many people died in the heat.

All this is because people open super sound emitted by aircraft emissions of waste gas and the car tail gas is left at the trial of toxic substances in the air into the results, if in so doing, the glaciers will melt, make the surface flat area, causing most of the land of the sea submerge.

If you dont stop cutting trees, when the trees were cut down light, desert will evolve, without the tree represents no oxygen, and the air was full of carbon dioxide, make the person cannot breathe, cause a person to cant live.

Please do not cut down trees, let the birds have a home, do not emit waste gas, let us live together in this beautiful earth!