保护动物初二英语作文4篇 作文怎么写（优秀20篇）

"Bumper harvest, bumper harvest!"!" Cried one of the fishermen, happily jumping up like a child. After a while, the full cabin fish alive and kicking, calm sea filled with coming from all sides of the fishermens laughter.........

Now, like this "fish and shrimp full cabin" scene has been very rare. In todays market, is the most common fish pound at least to dozens of yuan, more serious pollution of the ocean, the ocean resources gradually dried up, seafood production, prices rise, it illustrates this point?

In the ocean of natural calamities and man-made misfortunes emerge in an endless stream today, human pollution is often not from the original intention, but it is caused by the unexpected effect. The British Petroleum oil, because the drilling platform explosion, caused by the oil spill in the Gulf of Mexico, to 9900 square kilometers of sea water is seriously polluted, so that tens of thousands of seabirds soaked in oil to move, die in hunger and misery, makes countless fish poisoning death; and the Japanese earthquake and tsunami triggered a nuclear leak the marine pollution is more serious......

The sea is so vast that it is because the rivers and streams flow into the Yangtze River and then run into the sea. If we do not solve the pollution problem from the source, then no matter how people clean up the sea, there will always be sewage flowing into the sea, and all the efforts will be futile. Now, streams and streams are often seriously polluted, or they become places where people dump rubbish or are loaded with pesticide cans. Finding a clear stream in an inhabited area can be very difficult today!

In any case, the protection of the oceans can not be achieved by individual forces, and the protection of the oceans depends on the joint efforts of all mankind. I do not want one day in the future, our descendants can only imagine the image of the vast and wide sea.

This is not only the wish of a pupil, but also the wish of all mankind, isnt it?

Computersare changing our life. You can do a lot of things with a computer. Such as, you can use a computer to write articles, watch video CDs, play games and do office work. But the most important use of a computer is to join the Internet. By joining a computer to Internet, we can get the latest information in all fields. We dont need to leave home to borrow books from a library or to do shopping in a supermarket.

Computers help us live a more convenient life. With the development of computers, the word is becoming a large family.

绿，生命的颜色；绿，环保的颜色。有了绿色，便有了清新的空气；有了绿色，便有了沁鼻的花香；有了绿色，便有了健康的生命；有了绿色，便有了美丽的校园。我们的学校是传播文化的场所，是学生获得知识、培养正确的人生观价值观和养成良好行为习惯的场所，创建绿色校园是我们每个学生义不容辞的责任啊!

“勿以善小而不为，勿以恶小而为之”，从我做起，从小事做起，从现在做起，从爱护校园环境做起；一片纸，我们捡起；一滴水，我们节 约；一堆垃圾，打扫；一朵花，珍惜；一棵草，爱护

同学们，为了校园的“绿色”，让我们行动起来，为珍惜绿色、爱护绿色、创造 绿色献出自己的一份力量！

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。“救救地球”已成为世界各国人民最 强烈的呼声。

作为未来接班人的青少年，了解人类环境保护的法律法规，增强环境保护意识，自觉履行保护环境的义务.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。

我们以虔诚的声音呼唤生命的绿色

为了让大地山青水秀

为了让家园绿树蓝天

让我们小手拉小手

让我们小手拉大手

加入“呼唤绿色”行列

保护绿色家园

今天播下一份绿色种子

明天收获一片蓝天绿地！

行动起来，从我开始！

行动起来，从现在开始！

[保护绿色家园初二环保作文

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。

The giant panda is known as the national treasure of China。 The panda was a kind of ordinary animal in China long ago。 However， for some reasons， too many of them have been killed。 So the number of them is falling quickly。

At present people are taking an important measure to save pandas。 People want to find a home for them， and recently， they have set up a nature park for them in Sichuan Province，which is called "Pandas Home。 "There pandas can enjoy their life happily。 There is a bamboo forest near the Pandas Home。 So the pandas can find bamboos easily which they like to eat very much。

Because pandas are well protected now， the number of them is increasing every year。 We hope that one day we will have enough pandas to set them free and let them live in the wild again。

Pandas are good friends of man。 Man should try to protect them and ]et them live in the way they like!

对人有益的动物有很多，例如有蜻蜓、青蛙等等。

There are a lot of useful animal, such as dragonflies, frogs and so on.

我们先说蜻蜓吧，它是益虫，它对人的益处可多了。它生活在小池子旁边，捕捉害虫。有些人，捉蜻蜓，捕蜻蜓，捉住后到处卖。我们应给立一个保护蜻蜓法，如果他们再敢捉蜻蜓，捕蜻蜓，就是知法犯法，交给警察叔叔处理。

We first dragonflies, it is good, it can be more benefit to the people. It lives in the small pool, to catch pests. Some people, to catch dragonflies, catching dragonflies, caught after selling everywhere. We should give up a dragonfly, if they dare to catch dragonflies, catching dragonflies, is to break the law, to the police uncle treatment.

青蛙也不例外，它也是捕捉害虫的能手，不过，它生活在庄稼附近的池子旁边，有时候，它也到庄稼地，旁边捕捉害虫，人们都称它保护庄稼的好帮手。有的小朋友，到池子旁边，捕捉青蛙，回家后，吃青蛙。我们应该在池子旁边树一个牌子，上面写着“保护青蛙，人人有责”，这样就不会有人捕捉青蛙了。

The frog is no exception, and it is also catch insects but it lives in crops near the pool, sometimes, it is also next to catch insects to crops, crop protection, people call it a good helper. Some children, into the pool, catching frogs, after coming home, eat a frog. We should be in the pool next to the tree a sign that read "protect the frog, is everybodys responsibility", so no one will catch frogs.

如果没有这些有益动物，害虫就会增多。这样，连农药和灭害灵都不行了。我们应给共同保护动物。

If none of these beneficial animal pests will increase. So, I can not even spirit pesticides and pest. We should to protect the animal together.

The national level protection animal giant panda, have you ever seen giant pandas? Come and see! The following is a lovely giant panda, see how delicious it eats! The smile is so lovely.

You said, why so little panda, it is because of the destruction of the human disorderly cut down trees, dont take care of flowers and plants, destruction of the atmosphere, to lead to a drop in the panda, so we have to take care of the panda, the giant panda is herbivorous animals know, likes eating bamboo, but not as the giant pandas in the zoo keepers to feed their fruit. Wild panda anecdotes: in recent years, scientists found hidden cameras, male wild pandas left a breath marks on a tree, will lift a leg, like a male dog, and then the urine to the heights of the tree and. The higher the urine, the higher the social status of the male giant panda. Good play! Just like a dog! This is fun. Ax mountain in north of the city, we established a lush bamboo sea and the forest, form different from downtown chengdu "microclimate", in 1987, formally completed, now has developed into a specialized in endangered wildlife research and breeding, protection of education and education tourism, a nonprofit organization.

Do you know how pandas digest bamboo? Researchers have found that the giant pandas digestive tract is short and simple, and there is no such thing as a long, plant-eating animal with a thin gut and a complex stomach or a developed cecum. In addition, the giant pandas genome sequences announced in 2009, after they found the giant panda to the lack of some help in the digestive tract herbivores digest cellulose and hemicellulose (they are the main components of the fibrous plant diet) enzymes. This is confusing for researchers, and how does the lack of these necessary conditions digest bamboo?

Researchers use of gene sequencing technology, analysis of more than 5000 ribosomal RNA sequences, eventually in the giant panda, found a variety of digestive tract bacteria and some microbes are very similar to grazing animals. These help animals digest cellulose in their bodies, and seven of them are unique to the pandas digestive tract. Bye bye!

my pet is a toy bear. his name is small white. he is white. he has blue eyes and blue ears. his hands and feet are blue too.he is naughty.

he likes to make fun of me. he likes reading.

when i am unhappy, he accompanies me.

he is my good friend.

there is only so much land on the earth, and so what we can do with it is limited. some people believe that human needs for farmland, housing and industry should come first, while others believe that some land should be set aside for endangered animals. i am of the opinion that we should reserve some land for the worlds animals for the following reasons.

first, mankinds need for land is constantly growing. if the demand is not checked in some way, humans will eventually develop all of the earths available land. at that time, mankind will have no more room to grow, and all the wild animals will have disappeared, as well as other valuable resources. second, humans are able to innovate and can use the land that they already possess in more efficient ways. animals are unable to do this. once their land is taken away from them they will die. third and last, endangered animals are an important part of the biodiversity of our planet. if they disappear, we cannot predict what the effect will be. therefore, we should treat such animals as a valuable resource to be protected.

to sum up, the worlds endangered animals are an important resource and we should protect them by setting aside some land for them. although mankinds need for land continues to grow, people are intelligent and inventive enough to put the land they have to better use. in this way, we can have enough land for farming, housing and industry, and preserve the biodiversity of the planet at the same time.

1、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.

我们一边耗尽自然资源，一边产生化学污染物。如果继续这样做的话，地球上的生物将难以生存。

2、Protecting the environment is every mans responsibility.

保护地球环境是每一个人的责任。

3、if everyone could make a big contribution to environmental protection, our home will become much more beautiful.

如果每个人为环境保护作出一点贡献，我们的家园会变得更加美丽。

4、Protecting the environment，everyone，s duty.

保护环境，人人有责。

5、The short life of the flowers away, leaving behind the beauty is forever.

带走的花儿生命短暂，留下的美丽才是永远。

6、Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution.

许多国家制定了法律来保护大气、森林和海洋资源，制止环境污染。

7、The protection of trees, that is, to protect themselves。

保护树木，就是保护自己。

8、In addition to the photos, nothing taken away; In addition to the footprints, nothing left.

除了相片，什么都不要带走;除了脚印，什么都不要留下。

9、Have green trees, have the pulse of the earth.

树木拥有绿色，地球才有脉搏。

10、Earth is our home, you rely on green.

地球是我家，绿化靠大家。

[保护环境英语作文例句

前几天，我和妈妈在离家不远的水果摊边发现一只小狗。这只小狗似乎还很小，只有书本那么大，它有一双圆圆的小眼睛，黄颜色的小身体蜷缩在马路边的一个纸盒子里，不停地发出“吱吱哼哼。”的声音。

那天的天气非常冷，它的身体不停地颤抖，我想它一定是很冷，于是我走上前蹲下，用手摸了摸它，它抬起头向我摇了摇尾巴，好像在说：”小朋友，我的主人不要我了，你能收留我吗？我看着这只可怜的小狗，心里很难受，因为这么冷的天，小狗狗如果一直不吃东西就会饿死的，我心里真希望妈妈能同意把它带回家去，我抬起头望向妈妈。

这时妈妈也好像知道我的想法，笑着说：”你想把它带回家是吧，那你可要按时给它洗澡哦！听到妈妈这样说，我兴奋的跳了起来！我呼喊道：谢谢妈妈，我会做到的。

于是我和妈妈把它带回了家，给它洗了澡，还带它去打了防疫针。小狗还特别喜欢我给它的肉骨头，一边吃，一边不停地摇尾巴，好像在说：谢谢你，小主人。我还给它起了个好听的名字叫“赛赛”，嘿嘿，好听吧。现在它已经成为我最好的朋友。

我心里想：动物是人类的朋友，我们都应该来爱护它们，不要轻易的丢弃它们，让它们受到伤害，这样我们的生存环境就会更加的和谐和温暖。

让我们一起行动起来，爱护小动物吧！

If you ask me what my favourite animal.I can tell you pandas are my favourite.I like the pandas not only because they are one of the Chinas treasures,but also because they looks cute.

Pandas are very fat and hairy. They have two colours:white and black.The pandasd face,back and stomach are all white, their eyes nose legs and arms are all black.

The pandas like eating bamboo. Using the paws,he chew the bamboo very slowly with his mouth.

There are two pandas called tuantuan and yuanyuan will send to Taiwan.

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。

你了解一些处于危险的动物吗?为什么他们处于危险之中?

我想世界上有许多处于危险之中的动物，例如老虎、熊猫.当农民们砍倒了树木，老虎不再能够隐藏和猎食，许多老虎被那些用毛皮换钱的人们杀掉.而且几乎没有地方供熊猫生存.在这个世界上，我们不是孤立的.如果我们的周围没有那些植物和动物，我们的人类就不能够生存.因此，保护野生动物是非常重要的.我们必须采取一些措施来保证植物不被毁坏，停止杀戮动物.如果我们每个人能够种植一棵树、建造一个鸟巢，世界将是非常美好的，这件事情很简单但是很有用的。

[英语作文：为什么我们应该保护野生动物

保护动物，是每个人都要进到的责任。

今天，我爸爸说：“你看看，那屋里有鸟肉。”我一看，那血淋淋的感觉，让我大吃一惊。我是多么的气愤，有多么的为这些鸟可悲。听妈妈说：”这是爸爸专门买的网子，为了逮鸟。“使我万分气愤，为什么，你们要那么做。我质问爸爸的时候，爸爸说：”他吃咱家的玉米。“那我就更生气了，我说：”她吃那你也不能吃她啊，人饿了没吃的都会乞讨，更何况一个天真的鸟。“爸爸什么都没说。

据有关数据统计，20世纪有110个种和亚种的哺乳动物以及139中亚种的鸟类在地球上消失了，目前，世界上已有593种鸟，400多种兽，209种两栖爬行动物和20000多种高等植物频于灭绝。各位，如果在不保护动物，那地球上以后将会没有一只动物。当我看见动物的血，心头感到了难过的滋味。我真不知道那些人是如何下手的。你们难道就不会受良心上的责备吗？希望大家别再乱捕捉乱杀动物了。记住要保护动物！

Protect Traditional Chinese Culture

The passage mainly tells us the importance of protecting traditional Chinese culture, which is challenged or facing extinction because of the developing society and changing lifestyle. Besides, China is nationwide sparing no efforts to do it.

The protection of national and folk culture is of great significance to Chinese cultural diversity and also to the harmonious development between local economic and social development. It is reported that the Guangdong government pays special attention to protecting Chaoju(潮剧)， a local drama born in Chaozhou in the eastern Guangdong province.

In my opinion, some measures should be taken to protect traditional culture effectively. To start with, we should make a law to regulate the society’s performance. Besides, we should draw more people’s attention to it, for the more they know about the importance of culture protection, the stronger the support we can get from the public.

In a word, it is high time for us to treasure and develop our own valuable culture.

My favourite animal is the dog.They are so cute ,and are our honest friend.

We have a dog with grey furs and black eyes called Wangwang. Wangwang likes eating.My mother said that hes as greedy as I am.When we are having dinners,he usually crouches (蹲)in the face of us and looks at our food with hungry eyes . At that moment,I always cant help throwing the food in my mouth to him.

Every afternoon when i come back home from shool,Wangwang often runs to me and hug my legs.Hes so happy to see me back.When Im free ,I usually take him to play outside. We run in the field in Spring ,and swim in the river in Summer.Hes my best friend.

I love my dog—Wangwang.

My favourite animal

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.

My favourite animal

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.

My Favourite Animal

My favourite animal is a dog.I had a dog when I was ten years old.Its name is Lily.Its a brown and white dog.It does everything with me.Everyday I give it some water to drink and some food to eat.At the weekend,Ill make it take a bath.At that time,the dog is very gentle.And I like it very much.This is my favorite animal----a beautiful,gentle and lovely dog.

大家都认识熊猫，它们既可爱又机灵，不但淘气，还会自我保护。

熊猫很机灵。它经常让小林鼠自己跑出来让它吃，当然也会使用一些计策。

它还很淘气。有时，它趁猎人不在家，大摇大摆地闯进去，偷吃猎人的野味。吃完了，还把勺子仍得远远的，甚至把锅挂在树杈上。

当敌人来时，它能很好地保护自己，不被敌人吃掉。

但是，现在，像熊猫这样可爱的野生动物也越来越少了，豚鹿、梅花鹿那样的之前在小山坡上就能看见的动物，现在早已不见了踪影。

朱鹮、金雕、白鹤这些华丽、美丽的鸟儿们，在几亿年前曾经数不胜数，但现在只能在动物园里才能见到它们的美丽的模样了。

巨蜥、扬子鳄、蟒，这些动物虽然很危险，但也是重要的野生动物物种，对自然界的生态平衡也起着一定的作用。

说到这儿，你们想到了什么呢?我们不能因为他们的肉美味，就随便乱杀。它们可怜，是因为它们的兄弟姐妹越来越少;它们害怕，是因为自己有被杀的风险;它们生气，是因为我们的过度开发，它们的领地已经越来越小了。

从现在开始，不要再乱杀野生动物!从现在开始，不要再大量开发森林!不要再破坏动物和动物的家园吧!

As we all know , animals are mans friends.Nowadays with the development of industry ,a lot of animals are in danger of extinction. We should protect animals so that we can live in a better environment .To protect them ,our government should forbid people to kill them , and for most of us ,we can plant more trees and call for protecting anmimals habitats.Only if we protect animals well can we have a bright future!

The sun summoned the planet in the solar system to open an emergency meeting, the theme is to save the planet. The sun to see everyone to the Qi, and clear the clear voice, said: "The stars, our good sister earth has been at stake, the doctor said that her blood is toxins, the body of nutrients is also depleted, in this way "The moon says," In recent years, mankind has mined a lot of oil, minerals, wood and other materials, without protecting the environment, and the earths sister is not sick. "Saturn says" Way, we save the earth together! "" Well! "The stars have promised.

After the stars go back, have heard of human beings looking for a second home, so have made an appointment, never the second home of mankind, have also thrown away the conditions may be human use. For example: the moon threw away the oxygen, Saturn threw away the appropriate temperature, Mercury thrown away ... ... Finally, the human consciousness that the earth is the only human home, carried out to protect the Earth action.

300 years later, the sun also held a meeting, the earth also participated, she looks beautiful, green skin, clean blood, more importantly, she becomes healthy, the moon said: "sister, see you now So happy, I am happy for you. "Mercury said," Sister, see you now so beautiful, I am a little jealous. "Earth said:" Thank you all for my sacrifice so much, I am now healthy, or Thank you all, thank you, "said the sun," the stars, after this action, humans have recognized the importance of the earth, and I declare that the rescue of the earth is a success.

Friends, the mother of the mothers disease though good, but also need to continue convalescence, and now, let us work together to the earth dressed as the most beautiful planet in the universe.

保护环境英语作文篇3

There are many diseases that are harmful to human health and even threaten human life. Human into the 21st century, the world has occurred in the number of amazing changes. In the people for the rapid development of science and technology, but also experienced a better anxiety and even disaster. In addition to the panic of the development of high-tech, especially biotechnology, war and disease seem to bring mankind directly to the door of hell.

Water pollution on the human body harm, the body in the process of metabolism, with drinking water and food, the water of various elements through the digestive tract into the various parts of the body. When the lack of water in some of the human life process necessary elements, will affect human health. For example, in some areas of water iodine deficiency, long-term consumption of this water, it will lead to "big neck disease", is the medicine called "endemic goiter." When the water contains harmful substances, the greater harm to the human body. Carcinogenic substances can be consumed by eating contaminated food (food, vegetables, fish, etc.), into the human body, but also through the water into the human body. According to the survey, drinking contaminated water, suffering from liver cancer and gastric cancer and other cancer incidence, than drinking clean water is about 61,5% higher. When the sewage contains mercury, cadmium and other elements into rivers and lakes, the aquatic plants put mercury, cadmium and other elements to absorb and enrich them, fish eat aquatic plants, and in its body to further enrichment, people eat poisonous Fish, mercury, cadmium and other elements in the human body enrichment, so that the human body and death. In this way, from the aquatic plants → aquatic small animals → small fish → big fish → the body, forming a food chain. The body eventually became mercury, cadmium and other elements of the "foothold."

Water pollution hazards to aquatic organisms Water lives in a variety of aquatic animals and plants. Biological and water, between biological and biological complex material and energy exchange, from the number to maintain a dynamic balance. But under the influence of human activities, this balance has been destroyed. Some of the beneficial aquatic organisms are poisoned when humans release pollutants into the water, and some of the stained aquatic organisms will multiply, consume a lot of oxygen dissolved in the water, so that the beneficial aquatic life is forced to relocate due to hypoxia Or death. In particular, some toxic elements, both difficult to dissolve in water and easy accumulation in the body, causing great harm to humans. Such as mercury in the water content is very low, but the content of aquatic organisms is very high, the content in the fish is also surprisingly high. Assuming that the concentration of mercury in the water body is 1, the concentration of mercury in the aquatic organisms is about 700, and the concentration of mercury in the fish is as high as 860. Thus, when the water is contaminated, on the one hand led to biological and water, biological and biological balance between the damage, on the other hand some of the toxic substances continue to transfer and enrichment, and ultimately endanger human health and life.