Ⅰ 生物多樣性英語作文
在學習、工作、生活中，大家總免不了要接觸或使用作文吧，作文是人們以書面形式表情達意的言語活動。那麼問題來了，到底應如何寫一篇優秀的作文呢？以下是我為大家收集的生物多樣性英語作文，希望能夠幫助到大家。
Animals are natural resources that people have wasted all through our history. Animals have been killed for their fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the earth forever. Hundreds more are on the danger list today. About 170 kinds in the United States alone are considered in danger.
Why should people care? Because we need animals, and because once they are gone, there will never be any more. Animals are more than just beautiful or interesting. They are more than just a source of food. Every animal has its place in the balance of nature. Destroying one kind of animal can create many problems. For example, when farmers killed large numbers of hawks, the farmers' stores of corn and grain were destroyed by rats and mice. Why? Because hawks eat rats and mice, with no hawks to keep down their numbers, the rats and mice multiplied quickly.
Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger. Quite a few countries have passed laws. These laws forbid the killing of any animal or plant on the danger list. Slowly, the number of some animals in danger is growing.
動物是自然資源，在整個歷史過程中，人類一直在糟蹋著這種資源。人們殺死動物，獲得它們的皮毛，把它們當作食物或運動方式，或者只是因為它們礙事。成千上萬種動物已經從這個地球上永遠地消失了。現在另外上百種動物也上了瀕危動物名單。僅莢國大概就有170種被認為處於危險當中。
為什麼人們應該感到擔憂呢？因為我們需要動物，因為它們一旦消失，就永遠不會再出現。動物不僅僅是漂亮或有趣。它們不僅僅是人類的食物來源。在維持自然平衡中，每種動物都有其作用。毀滅某種動物會導致許多問題。比如，農民們如果殺死為數眾多的鷹，他們穀物和糧食的倉庫就會受到老鼠和田鼠的破壞。為什麼？因為鷹吃鼠類，沒有鷹控制它們的數量，鼠類就會迅速繁殖。
幸運的是，有些人正在努力幫助拯救這些動物。有些組織籌錢以便人們了解這一問題。他們也努力使政府通過保護瀕危動物的法律。很多國家已經通過了法律。這些法律禁止殺害瀕危名單上的動植物。某些瀕危動物的數目正在慢慢地不斷上升。
In the vast ocean live many creatures with great intellectual and physical capacities. Dolphin is one of those great creatures, whose capacities to think and move at an astounding rate puzzle those who study their behaviors, Dolphins possess something that makes them different from all the other sea creatures. It is not strength or speed but the size of their brains. Dolphin' s brain is almost the same size as that found in the human head. They live for a ling time.
Dolphins' babies are born in the water. They can grow up to three and a half meters long.
Dolopins use sound to help them find their way, look for their food and talk with each other. Sound is just like their eyes and mouths.
在浩瀚的海洋中生活的許多智力發達、身體強健的動物.海豚是那些偉大的人之一,他們的思考能力和行動以驚人的速度讓那些研究他們的行為,海豚擁有一些使他們不同於其他所有的海洋生物.它不是力量或速度,但他們大腦的大小.海豚的大腦幾乎是相同的大小,在人類頭上的發現.它們壽命很長.
海豚寶寶出世在水.它們能長大到三米半長.
海豚利用聲音來幫助他們找到他們的路,尋找食物和交談.聲音就像它們的眼睛和嘴一樣.
Blue whale is the world's largest animal, the body was blue-gray. Now catch the largest blue whale to the site in the Atlantic near the Falklands. This 33.5 m long blue whale, weighing 195 tons that is much greater than its tongue elephant weighing about 3 tons of its 700 kg heart weight, lung weight 1500 kg, the total blood weight of about 8 tons to 9 tons, intestines are half a mile long. Such a large body can only live in the vast ocean. Whale is an outstanding singer in water, "singer" When push "humpback." In 1971, biologists from the United States under the sea seeking the "humpback" voice is analyzed and found a very special sound signals. The original of these "humpback" issued a series of beautiful sounds, sound mildly varying tone. These sounds continued for 30 minutes, then sing from scratch, from the cadence, to judge the degree of light sweet Man, can travel to sea whales never lost. Usefulness of the people all the whales is very good, a lot of dead whales now, so that human beings are to be discarded, we need to protect the whales, so they continue to multiply Health habitat. Let people according to their benefits, create more advanced equipment, whale is a human friend. Why touch? Yes, I have here a bit information: whales, sea travel will not get lost all use of the whale is a very good person, and now a large number of dead whales, so that human beings are discarded, we need to protect whales, so that they continue to suffer from habitat reproction. 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 there are sound, they scattered and went away. Whales can live for decades or a century.
藍鯨是世界上最大的動物，全身呈藍灰色。目前捕到的最大的藍鯨地點在大西洋的福克蘭群島附近。這條藍鯨長33.5米，體重195噸這遠比大象大得多了它的舌頭重約3噸它的心臟重700公斤，肺重1500公斤,血液總重量約為8噸～9噸,腸子有半里路長。這樣大的軀體只能生活在浩瀚的海洋中。鯨是歌唱家 水中傑出的「歌唱家」當推「座頭鯨」。1971年，美國生物學家對從海上尋下的「座頭鯨」發聲進行了分析，發現了極其特殊的聲音信號。原來這些「座頭鯨」發出一連串優美動聽、調子不一的婉轉聲。這些聲音延續了30分鍾，然後從頭唱起，從抑揚頓挫、輕曼悅耳的程度判斷，可鯨遨遊大海時從來不會迷失方向。鯨的種種用處對人是很有好處的，現在鯨大量的`死亡，使人類也走向滅亡，我們要保護鯨類，讓它們繼續生棲繁衍。讓人們根據它們的好處，製造出更先進的儀器，鯨是人類的朋友。 為什摸？不錯，我這里還有一點資料： 鯨遨遊大海不會迷航 鯨的種種用處對人是很有好處的，現在鯨大量的死亡，使人類也走向滅亡，我們要保護鯨類，讓它們繼續生棲繁衍。讓人們根據它們的好處，製造出更先進的儀器，鯨是人類的朋友。 鯨每天都睡覺.睡覺時,總是幾頭聚在一起,要是有響聲,它們就四散游開. 鯨可以活幾十年或一百年.
Living things react
You and all organisms live in an environment. An environment is made up of
everything that surrounds an organism. It can include air, the water, the soil, and even
other organisms. An organism responds to changes in its environment. When an organism responds to a change, it reacts in certain ways. All living things respond in some way. Have you ever noticed how plants and insects respond to light? Plants bed toward light. Insects fly toward light. Living things also respond in other way. The leaves on some trees respond to a change in season. In autumn, they change colors and then fall off the branches.
Animals also respond to a change in season. Squirrels save nuts for the winter. Bears sleep
through the winter in a cave. You respond to your environment in many ways, too. You
may shiver if you are cold. What other ways do you respond to changes in your
environment?
你和所有的生物生活在同一環境中。環境是由身邊的一切組成的有機體。可以包括空氣，水，土壤，甚至其他生物。生物體以某種特定的方式，對其環境所發生的變化做出反應。你有沒有注意到，植物和昆蟲對光有反應？植物向光生長，昆蟲迎光飛舞。生物也會對其他東西產生反應。就像有的樹葉會依據季節不同而呈現不同狀態。在秋天，它們顏色變黃且脫落。動物也不例外。松鼠為過冬儲存堅果。熊冬天睡在洞穴中。人對環境的反應是多形式的，就像冷的時候會顫抖。那麼你對環境的變化會有怎樣的回應呢？
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 bee 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！
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 fort 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 panies.
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,'Don't do that. It's bad for it. If you really love them, take good care of them.' His face turned red and answered he wouldn't do that again.
上周，我看了一部令人印象十分深刻的關於熊貓的紀錄片。一位教授在20年代80年代早期就開始研究熊貓，他到野外生活，多年尋找野生大熊貓的蹤跡。結果，他發現，正是人類，讓這些可愛的動物面臨滅絕。當時，許多人認為，大熊貓變少是因為新生兒的低出生率。這是不正確。人們為了利益砍伐樹木，熊貓失去了家園，也沒有食物吃。多虧了這些有價值的數據，政府採取了政策去保護它們。所以此刻，大熊貓的數量正在增加。人們意識到保護環境的重要性，這也是最好的方法來保護野生動物，因為它們是大自然不可或缺的一部分。
Last week，I saw a very impressive documentary about panda A professorstudied panda in the early 1980s went to the wild life and kept trace of wildgiant panda for many years As a result，he found that it was human being thatmade these lovely animals die out At that time，many people believed that giantpanda became less because of the low rate of newborn babies But it was nottrue People cut trees for making profit at that time Panda lose homeland andthey lacked of food Thanks to these valuable data，the government took thepolicy to protect the animals So today，the number of giant panda isincreasing People realize the importance of protecting the environment and itis the best way to protect wild animals，they are the indispensable part of thenature
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 let them live in the way they like！
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 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.
Among all the animalsI like rabbit very much.
When I was a little girlkeep a rabbit by myselfit was very lovely with a pair of long earsand two red round eyesthe hair of it was white.After school I fed it everydayit liked vegetables and carrots.so when I gave them to itthe rabbit always jumpped happilylooked at me by its red eyesseemed to tell me it was very hungry.So I love the rabbit !
There are more and more endangered animals at present,so how to protect them has been our task of top priority . It's 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 animal and protect them.
Elephant is the largest animal on land today. It weights some ninety kilograms and is about one metre high when born. when it is 12 years old,it studs over three meters and does not grow any more.
Elephant is usually grey in color,having a long trunk with large ivory tusks protruding from each side of its mouth. Usually moving in groups and caring for each other,Elephant is know to be a very and gentle creamre.
For many years people have used the strength of these poweful animals to move trees and heavy logs. Elephant has been and is a vital tool for people to do many things that would normally be imposs—ible. Elephant is and will continue to be one of the greatest creatures man has ever come into contact with. Its size. beauty,and power willforever be useful to man.
Children，you grabbed the small tadpoles right，you must know that tadpole grew up to bee small frog，the frog can eat insects，so the frog is our human's good friends. We should protect it，not hurt it. But some hotels are also sold the frog meat？Once，dad and his friends took me to dinner. A waiter said："you see，this is we store the launch of new specials，stir flogs ball". "Chicken is what ah？" I curiously ask，"chicken is the frog." The waiter said，with a smile. I was very angry，because they hurt our good friends—frog！Another thing，he makes a big inspiration. One day，when I finish school，saw a man at the school gate at little chicks must sell，and I will have mercy on them. Because the little chicks must first came to this world，away from the mother，away from the mother love and mother warm embrace，and this is what they faced starved to death，the risk of freezing to death. At that time I thought：we humans are so happy！When you see here，did you see to protect our human friends—animals！
Anima is are our friends. Although some of them are very dangerous. But I think we should help them.
Animals are important for every people. No one can live without animals. So, we should do someting for them.
We can't kill them too many, we should keep the balanced nature. Don't damage any animals.
And if you have a pet, than, please feed it well.
Animals are friendly to us, if we are friendly to them. Animals will be our friends forever.
favourite animal is the panda,is our"national treasure",bacause pandas nive,lovable and lively,it was very likr it. panda is an ancient animal,is a zoologist called "living fossile " long ago there were many pandas in china,panda bamoo living area has large flowers,dead,threatening the survival of giant pandas. The whole world is extremely concerned about the rare giant panda rescue and transfer work.
e to the destruction of the natural balance,climate warming,fewer and fewer panda. Panda is one of endangered animals,now only found in China,sichuan,shaanxi,Gansu,people began to conserve this endangered species. Today,the number of pandas has increased,but there is still a long way to go.
Care for animals,is to protect human,we should be animals as man's best friend,to care,to protect them. Protection of animals is a ty of each person,let us work together to protect the giant pandas,giving them a good home.
my favorite animals are swans.they are white.they can swim very well.I think they look like a beautiful girl in a white dress.they have a pair of wings and they can also fly well.I believe they are angles from the sky.they bring us love and make us happy.they are always friendly to us.
we can't hurt them,because they are our friend.I love them！I like dogs,too.they are not beautiful,but they are the best friends.they keep the thieves away.Dogs have the best listening and eyes.
they can hear in the nosiy,see in the dark.If we are in danger,they will help us at once.And they don't mind their lives.so,I love them.
Many animals are in danger of dying out.
As is shown in the chart, we can see the number of animal species decreases faster and faster and this trend will continue.
From 1980 to 20xx, at least 1 million animal species have disappeared. Worse still, more and more wild animals are in great danger.
It is not a piece of sensational news; it is a fact, a harsh reality. Unfortunately, we may not see these animals in the near future.
Ⅱ 關於生物多樣性的英語作文
Wild animals have no place in the 21st century. Some people think that preventing these wild animals from dying out is a waste of resource. To what extent do you agree or disagree with this opinion.
Biological diversity has never been so threatened as it is today as a result of the process of human civilization. The various forms of pressure created by human activity have destroyed natural balance, led to the deterioration of natural habitats, genetic erosion and the rarity, even disappearance, of a number of plant and animal species.
As the pace of civilization accelerates, more people, taking more space, needing to use more natural resources, engaging in ever-growing consumption, impose severe deterioration on the habitat of animals. An increasing number of people come to realize that the disappearance of animals will result in serious threat to the equilibrium of ecosystem. Simply put, the extinction of hawks, a rat-eating bird seen in many regions, will result in the rapid propagation of rats. And rats, further, will destroy the prairies and threaten the other animals like gazelles, zebras and others, who live on grass and green lands. The coexistence of animals and human beings creates perfect harmony and brings about the vividness to our planet.
It is hard to imagine what our world would be like without animals. Sociologists also point out that the disappearance of animals can cause social and economic problems. Animal trade, as a supporting sector to the world economy, was very active before. However, the situation is beyond control since animal trade is very profitable and alluring. Many species cannot escape the adversity of being killed.
Certainly, our diet cannot be without meat. There are living stocks, which can provide us with sufficient and nutritious proce. Therefore, we need not to resort to wild animals, especially the endangered ones. To protect animals is to protect our living environment. Every indivial should join efforts to keep the diversity of animals.
Ⅲ 生物多樣性 用英語咋說
原始的表達方式是：Biological diversity, 由托馬斯·拉夫卓伊(Thomas Lovejoy)於1980年提出；而biodiversity這個組合詞則由昆蟲學家威爾遜(E. O. Wilson)於1986年提出的。目前兩者都有使用。
Ⅳ 熱門單詞："生物多樣性"用英語怎麼說
biodiversity
英 [ˌbaɪəʊdaɪˈvɜ:səti] 美 [ˌbaɪoʊdaɪˈvɜ:rsəti]
n.
生物多類狀態，生物多樣性
詞彙難度：IELTS
雙語例句：
Their commitment was only to maintain the extent of forests, not their biodiversity.
他們僅承諾維持現有森林面積，並不保證林區生物的多樣性。
Ⅳ 英語單詞博覽006 生物多樣性 Biodiversity
biodiversity [ˌoudiˈvə:səti]（n.生物多樣性）＝bio＋diversity。bio詞根「生命」（如biology生物學），diversity多樣性（見下）。
diversity [diˈvə:səti]（n.多樣性）＝di＋vers＋ity。di-前綴「分開」(＝dis)，vers詞根「轉」(＝turn)，-ity名詞後綴。「轉變後形成差異」→多樣性。
diverse [daiˈvə:s]（a.多樣的；不同的）＝di前綴「分開」＋vers詞根「轉」＋e後綴。
diversify [diˈvə:sifai]（v.多樣化）＝divers(e)＋ify使…化。
divert [diˈvə:t]（v.轉移；改道）＝di分開＋vert詞根「轉」。注意vert＝vers（輔音變換）。
diverting [diˈvə:tiŋ]（a.有趣的）＝divert＋ing形容詞後綴。「能轉移注意力的」。
diversion [diˈvə:ʃn]（n.轉移；改道；娛樂）＝di分開＋vers轉＋ion名詞後綴。
divorce [diˈvɔ:s]（v.n.離婚）＝di分開＋vorc詞根「轉」＋e。「夫妻轉身分開」。注意vorc＝vers（母音替換＋輔音變換）。★如何區別divorce和diverse？可把divorce中的o看作指環→「離婚」就是不要戒指了。※Divorce—a tragedy that after a while feels suspiciously like relief.離婚——一場悲劇，片刻之後又似乎覺得像是一種解脫。
avert [əˈvə:t]（v.轉移；避免）＝a前綴「離開」(＝away)＋vert轉。
averse [əˈvə:s]（a.厭惡的）＝a離開＋vers轉＋e。「把臉轉開」→厭惡的。
aversion [əˈvə:ʃn]（n.厭惡）＝avers(e)＋ion名詞後綴。厭惡療法（aversion therapy）是一種心理治療方法。
convert [kənˈvə:t]（v.轉變；皈依 n.皈依者）＝con前綴「完全」＋vert轉。「完全轉變」→皈依。※The ability to convert ideas to things is the secret of outward success.將想法轉化為行動的能力是取得明顯成功的秘訣。
conversion [kənˈvə:ʃn]（n.轉變；皈依）＝con完全＋vers轉＋ion名詞後綴。
reverse [riˈvə:s]（v.反轉 a.反轉的 n.反面）＝re前綴「反」(=back)＋vers轉＋e。這個詞包括三個詞性，某些詞彙書上一大堆中文解釋，而我用七個漢字就搞定了，這就是實力啊！^_^
讀網路知識, 記英語單詞
Ⅵ 急求一篇關於生物多樣性減少的英語作文
這是我的一個presentation的講稿 for community ecology 不知道適不適合你，是以一個文章為背景的 the bees are back in town (The Economist on March 7th 2009)
At the end of February, the almond flowers were competing for the pollinators in the orchards of California』s central valley. The flowers are so delicate to attract the pollinators which are mainly honeybees, because of the shortage of honeybees in California. The shortage of the honeybees called colony collapse disorder. The colony collapse disorder is described as a phenomenon that large numbers of honeybees are dead in the winter. The causes of colony collapse disorder are unclear. There are some possible causes of the colony collapse disorder, such as virus, parasites and fungus. A study from Cox-foster et. al. showing that the Israeli acute paralysis virus is closely corresponding to the colony collapse disorder by molecular analysis of pathogen DNA like 16s DNA which are highly conserved. For instance, DNA sequencing and NCBI blast were used to identify the species of pathogen on the honeybees. Beside the Israeli acute paralysis virus, parasitic mites can also lead to the colony collapse disorder. But further study is showing that the origin of the colony collapse disorder is the poor food nutrients.
沒完 答案補充 實在是發不上去，你要是要和我聯系吧
Ⅶ 生物多樣性用英語怎麼說
biodiversity
n.英[,əudai'və:səti]
美[,baɪodɪ'vɚrsɪti]
生物多樣性
生物多樣性biodiversity是指一定范圍內多種多樣活的有機體(動物、植物、微生物)
有規律地結合所構成穩定的生態綜合體。
Ⅷ 寫生物多樣性的作文要求1000字以上，最好是原版不要百度的！那位學霸大神能幫幫我謝謝
生物多樣性biodiversity是指一定范圍內多種多樣活的有機體（動物、植物、微生物） 有規律地結合所構成穩定的生態綜合體。 這種多樣包括動物、植物、微生物的物種多樣性，物種的遺傳與變異的多樣性及生態系統的多樣性。其中，物種的多樣性是生物多樣性的關鍵，它既體現了生物之間及環境之間的復雜關系，又體現了生物資源的豐富性。 我們目前已經知道大約有200萬種生物，這些形形色色的生物物種就構成了生物物種的多樣性。 生物多樣性是生物及其與環境形成的生態復合體以及與此相關的各種生態過程的總和，由遺傳（基因 ）多樣性，物種多樣性和生態系統多樣性等部分組成。遺傳（基因）多樣性是指生物體內決定性狀的遺傳因子及其組合的多樣性。物種多樣性是生物多樣性在物種上的表現形式，可分為區域物種多樣性和群落物種（生態）多樣性。生態系統多樣性是指生物圈內生境、生物群落和生態過程的多樣性。遺傳（基因）多樣性和物種多樣性是生物多樣性研究的基礎，生態系統多樣性是生物多樣性研究的重點。
動物
獸類是動物中形態結構最高等，生理機能最完善，適應性最強的動物類群。獸類中，華南虎已經瀕臨滅絕，野生麋鹿已經滅絕。
南極和北極位於地球的兩端，終年冰雪覆蓋，自然環境極其惡劣，但這里並不是生命的荒漠，仍有豐富的野生動物，它們構成了重要的極地生態系統。
植物
植物的演化是一個連續發展的過程，即從最原始的原核生物，一直到最高等的被子植物，每一個階段都有化石佐證。植物界從低到高通常被分為這幾大門類，藻類、菌類、地衣、苔蘚、蕨類、裸子植物、被子植物。
真菌，我們平常食用的金針菇、香菇、靈芝都屬於真菌大家庭。
生物多樣性受到的威脅
近年來，物種滅絕的加劇，遺傳多樣性的減少，以及生態系統特別是熱帶森林的大規模破壞，引起了國際社會對生物多樣性問題的極大關注。生物多樣性喪失的直接原因主要有生境喪失和片段化、外來種的侵入、生物資源的過度開發、環境污染、全球氣候變化和工業化的農業及林業等。但這些還不是問題的根本所在，根源在於人口的劇增和自然資源消耗的高速度、不斷狹窄的農業、林業和漁業的貿易譜、經濟系統和政策未能評估環境及其資源的價值、生物資源利用和保護產生的惠益分配的不均衡、知識及其應用的不充分以及法律和制度的不合理。總而言之，人類活動是造成生物多樣性以空前速度喪失的根本原因。
中國是生物多樣性特別豐富的國家之一。據統計，中國的生物多樣性居世界第八位，北半球第一位。同時，中國又是生物多樣性受到最嚴重威脅的國家之一。中國的原始森林長期受到亂砍濫伐、毀林開荒等人為活動的影響，其面積以每年0．5×104km2的速度減少；草原由於超載過牧、毀草開荒的影響，退化面積達87×104km2。生態系統的大面積破壞和退化，不僅表現在總面積的減少，更為嚴重的是其結構和功能的降低或喪失使生存其中的許多物種已變成瀕危種或受威脅種。高等植物中有4000—5000種受到威脅，占總種數的15％—20％。在「瀕危野生動植物種國際貿易公約」列出的640個世界性瀕危物種中，中國就佔156種，約為其總數的1／4，形勢是十分嚴峻的。
生物是人類社會和文化的多元基礎，更是我們五彩繽紛的生活的基礎。據估計，地球上生物約有300-1000萬種，但至今有案可查的只有大約150萬種，經人類加以研究和利用的只是其中的一小部分。很多物種還未來得及命名就已經滅絕。更重要的是，平均每天就有140種生物從地球上消亡。全球范圍內生物多樣性正面臨嚴重威脅。
亂砍濫伐，圍湖造田，毀林開荒，過度放牧，公路建設等許多人類活動，都破壞和改變了生態環境，不僅減少了生物的適宜生境，也造成了生物的生殖隔離，降低了遺傳多樣性。
保護生物的多樣性
面對如此巨大的生物物種危機，我們應該反對、監督、制止偷獵，採摘珍稀野生動植物，並與此做堅決斗爭。
保護環境，愛惜動植物生命。讓野生動物遠離我們的餐桌。在發展生產的同時，保護野生動物的棲息地。向周圍人宣傳保護環境，保護生物的多樣性。查字典