怎样拯救地球英语作文初中20篇

Live with thankfulness

Do you know Thanksgiving Day? Do you know why human thankGod?

Thanksgivingfalls on the fourth Thursday of November, a different date everyyear. The President must proclaim that date as the officialcelebration.

Thanksgivingis a time for tradition and sharing. Even if they live far away,family members gather for a reunion at the house of an olderrelative. All give thanks together for the good things that theyhave.

In thisspirit of sharing, civic groups and charitable organizations offera traditional meal to those in need, particularly the homeless. Onmost tables throughout the United States, foods eaten at the firstthanksgiving have become traditional.

What shouldwe thank?

Generally speaking, life in high school is busy and fulfilling, due to the

ultimate goal---College Entrance Examination. Many people say that there is no

fun left but bored study and endless exercises. However, as a high school

student, I can’t agree with them. Personally, I live a fruitful but happy life

in high school. It can’t be denied that study is my priority that I must spend

most of my time and energy on it. Sometimes, study may make me frustrated or

even drive me crazy, but I still can adjust my mood to enjoy my life. Besides, I

can also get a sense of achievement when I do well in my study or make progress.

The most important is that my friends bring much happiness to me and my parents’

care inspires me to go on. I think friends in high school are my best friend

forever, because they know me a lot and witness all of my emotions. They are the

persons who grow with me. In addition, teachers in high school care much about

our students both in study and life, and classmates are always friendly to each

other. We build deep friendship together. All of these make up my fruitful life

in high school, which I will cherish forever.

Im a Middle Schools student.I am busy.Next summer, I have a long vacation

and I have a very good plan for this vacation.

I think about going to the Beijing. I heard Beijing is beautiful and there

are many peopie there who are friendly.

I am going to the Tianan Men Square, going to the Palace Museum ,going to

the Great Wall and going to the Beijing Hutong.These famous places can make me

to have fun.For something else , I can go shopping, go sightseeing, go having a

lot foods. At night, maybe renting videos and sleeping a lot……

A great vacation! I cant wait!

I have a lot of friends but Toshi is my best friend.He is a boy. Both of us are good at English, so we often have a chat in English in our spare time. After school, we often play football together on the playground. He runs so fast that I can not catch up with him. He is an excellent student. He not only gets good marks in all subjects but also is very kind and modest. He loves popular songs and also classical music.

"Enough! Enough!"I said when Father and Mother were still giving me more fish ad meat. My bowl was piled up like a little hill.

"Dont study too late into the night. Do be careful of your health. Have you had any examinations recently?"Father asked me in great concern.

My face turned red. I didnt dare to give Father an answer. I hadnt made any progress in my studies. I did badly in all subjects. I only got 60 for maths and failed in physics.

"It doesnt matter. Try to find better study methods and to work harder. I am sure you can enter a college!"Hearing these words, I bent my head down. What a kind father! He didnt scold me, but encouraged me instead.

"Have you used up the money I gave you last night?"With these words, Father was taking his wallet out."Mother has just given me 10 yuan.""Buy something to eat when you are hungry."Father passed me another ten-yuan note.

Should I accept it? Father and Mother love me deeply. Why couldnt I get god marks in exams? Tears came into my eyes.

"Dont cry. Now I will take you to the bus stop."As usual, Father carried that heavy bag and went to his dirty old bike.

[我的家人初中英语作文

On the thirty, is the new years day, everywhere permeated with a festive atmosphere. Everybody happily sit together to eat dinner, I love to eat fish balls on the table, my sister and brother Sweet and Sour Spare Ribs favorite, favorite braised fish in soy sauce. After the dinner, my brother and sister began to set off firecrackers and fireworks. At this time, I brought a carefully lit fireworks, fireworks, and for a while a green spray, spray red, while spraying purple, is really fun.

My sister brought the firecrackers, the "popping" and "shout shout" sound like thunder, scared us everywhere escape. Brother of fireworks and crackers, is even more magical, while fly to the sky, while flying on the roof of the night dressed as the day, we see dazzling.

Just as we are playing vigorously, "when Dangdang, Dangdang", the bell of zero hour is ringing, the new year begins. Lets all wish the happy new year and the happy family together.

绿地 小草 山川 河流

自然环境是我们共同的资源

如果家园被大家无情破坏

美好的生活将消失在我们眼前

当人类无奈迁居外星时

世界已经无法挽回

让我们从现在开始由身边的小事做起

拯救独一无二的家园--地球

地球是茫茫宇宙间已知的唯一

21世纪已经来临，面对地球生态环境日益恶化的现实，任何一个有良知的公民都会明白：保护环境，拯救地球是我们人类共同的责任。

让我们携起手来，为保护环境、拯救地球而积极行动，做21世纪的优秀世界公民，为我们的地球缔造出一个绿色的明天!

地球的人口增长速度非常快。人类必须使地球的支持已使越来越农业和工业的迅速发展需要population.This。如此迅速的发展产生越来越多的垃圾，入水，土壤和它的是由无害去。但是，如果有太多了，有毒废物可能极大地损害周围的人的东西。

当农民新增化肥土壤，使植物长得更好，或使用毒药杀死害虫，毒气散发到空气，水和土壤。当鸟，鱼和人吃的粮食，喝的水，呼吸的空气，危害会做他们的健康。

在大城市的空气往往很肮脏的汽车和工厂。的废物和有毒气体散发到数百万吨与烟雾的空气。在一些地方，很少做是为了使烟净化后才能排到空气中。

幸运的是，人们开始认识到多么严重的整个局势。在许多国家，法律已作出停止发送出有毒的气体工厂。

[拯救地球的作文300字

Of all the colors, I love white best. White is the color of snow and cloud.

Snow in winter is clean,pure and holy. When it is melted, it moistens everything

and the whole earth. White clouds are hanging on the blue sky. We can dream a

lot on such a nice day. White is a color of purity and calmness. It can make a

harmony picture with any other colors. This is white, a selfless color.

Ocean Park is very exciting and fun. The cable car is very good, when you look out the window, you will see very beautiful scenery, but one thing I don’t like is we need to wait 45 minutes. If you want to go quickly, you can take the ocean train, just like the subway. It’s very fast.

When you go up, ther are many rides, like a roller coaster, water ride and many things to do. I want to cry when my mom and I get on the roller coaster. I yelled, because the roller coaster is so exciting. I don’t want to ride it again, so I go to the ocean museum, and the polar bear place. The last thing is very good, it’s a waterride. We are very bored when we were in the middle. Suddenly, the water is pushing the boat. “Ahhhh!” I’m shouting, I’m very excited, the water is very fast, then the boat goes down. “Wow!” My mom yelled, and the ride is over. Our shirts are all wet, and the sky is almost dark, so we leave the park, and go back to Kowloon Hotel.

What a fun day!

I remember once upon a time, when I was running 800meters, I felt there

seemed to be the impossible mission for me, I wanted to give up, then my teacher

told me that I should not think about the 800meters, I should set up 100meters

for myself, then I wouldn’t be so tired. I did as he told me, indeed, every time

when I finished the small goal, I was happy, in the end, I finished the running.

I learn the lesson that we need to set up the best goal, it means we can make

the small goals, which are so easy for us to realize. Then every time we finish

the small goal, we will close to our final destination.

January 21

It was cooler than yesterday. One of my father’s friends invited me to eat red bayberries. You must know it is unusual. Because we will climb the hill to eat red bayberries. There is no chance to eat red bayberries in the hill for the people who don’t live in Beijing. On the hill, you can breathe the fresh air, you can listen birds singing and you can eat red bayberries. It was enjoyable. It is said there are wild pigs in the hill. What a beautiful natural.

January 22

Today I found time was a cruel thing. Whatever man is, time always goes on. It won’t stay to wait for somebody. You can’t use anything to exchange time. Time is also a fair thing. Although you have a lot of money or you enjoy high reputation, time won’t leave them more. Today I found I hadn’t enough time. Although I have 50-day holiday, but I found I had a lot of things to do. I had a lot of homework to do and I had something necessary to do.

January 23

I have rested for 10 days. In these days, I felt very bored. I didn’t know to do what. Although I had a lot of things to do, I felt uncomfortable. I was ill because of the cold weather. I was tired, sleepy and had no strength. My parents are worried about my health. in fact, it didn’t matter. I was always in the room with air-conditioner and opened it in a low temperature. So when I went out, the high temperature disagreed to me. Finally, I was ill.

When the national entrance examination is over, people always pay more

attention to those who are enrolled by colleges and universities. Those who

failed the examination are treated coldly. Being enrolled by colleges and

universities is, of course, worth congratulating. But giving the successful

candidates excessive praise and neglecting those who failed the examination

might send the wrong message: young people do not have a bright future unless

they go to college or university.

Teachers, parents and society, therefore, should give more attention to

students failing the examination. They are in more urgent need of understanding,

warmth and encouragement. We should tell them that to go to college is not the

only way to success, and that, if they make enough effort, they can still

develop talents in other occupations that will serve society.

Personally, the country’s economic development requires not only

specialized scientists and technical experts, but also knowledge-based workers

and skilled laborers. After some vocational training, these senior high school

students can also become backbones in their own fields and contribute their

wisdom to our society.

English is the international language. Many parents have realized the

importance of mastering English and they spend a lot of time and money to help

their children learn it well. But with the development of Chinese economy, a lot

of foreigners come to China to learn its culture and language, so we cant

ignore the importance of Chinese. I have recited a lot of old poems. It makes me

feel the charm of these classic poems. Every poem uses a different way to show

the history. I find the great joy in learning Chinese. Both English and Chinese

are future language, so we need to master them well.

也许我们的祖父已是年迈，但是他们依然会有一个年轻的心态。

My grandfather is over sixty. He looks younger than his real age. He was a policeman before his retirement. He has a positive attitude towards his later years of life. He does physical exercises every morning. He can read books without wearing glasses. He is so strong that he is able to lift heavy things by himself.

He loves children very much. Every Monday afternoon he is invited to a nearby school to tell stories to the children about the life and work of the policemen. All the young pupils love him very much.

关于自己的祖父是不是也是这样子的呢？同学们可以将自己的祖父写下来与大家一起分享一下哦！

初中英语写作范文：保护眼睛

眼睛对我们很重要，同学们一定要很好的保护自己的眼睛哦。

保护眼睛

Protect Our Eyes

Nowadays, there are more and more students becoming short-sighted. Some students get short-sightedness when they are little. There are fifteen students wearing glasses in my class. Being short-sighted is common among students, even in primary school. That is too serious. Therefore, we should protect our eyes carefully. When we are reading and writing, we should keep a standard posture. Besides, we should not watch TV or play computer for too long. They are bad for our eyes. And, we should do eyes exercises regularly. A good rest is also important to our eyes. In all, eyes are the windows of our mind. We should keep it healthy.

现在，越来越多的学生近视了。有些学生在很小的时候就近视了。我们班上有十五个学生戴眼镜。近视在学生中变得很普遍，甚至是在小学。这种情况很严重。因此，我们应该好好保护眼睛。当我们读书写字的时候，我们应该保持正确的姿势。此外，不要长时间看电视或玩电脑，对我们的眼睛不好。并且，我们应该有规律的做眼保健操。好的睡眠对我们的眼睛也很重要。总之，眼睛是我们心里的窗口，我们应该保持它健康。

希望同学们都能很好的保护眼睛，相信同学们会做的很好的吧，好好学习英语知识吧。

初中英语写作范文：第一次坐飞机

同学们都坐过飞机吗，下面是我对我第一次坐飞机的经历的介绍。

第一次坐飞机

My First Experience of Plane

Today I was very excited, because I traveled plane for the first time. My parents and I traveled toBeijingtoday. When the plane took off, I felt it was shaking. But I was not nervous because of excitement. After a while, it stopped shaking and flied higher. I could see the buildings on the ground. They became smaller and smaller. And finally, I couldnt see them anymore. Through the window, I could see the blue sky. It was very clear. Clouds were under the plane. They looked so different from the ground. It was amazing. I like the view very much. It took only two hours to get toBeijing. TheBeijingairport is very large and wonderful. There are many planes and people. I think my trip will be funny.

今天我很兴奋，因为我第一次坐飞机去旅游。今天父母和我去北京旅游。飞机起飞的时候，我感到它在摇晃。但是由于兴奋，我并没有觉得紧张。过了一会，飞机停止摇晃并且飞得更高了。我能够看到地上的建筑，它们越来越小，最后就再也看不到了。透过窗户，我可以看到蓝蓝的天空，很清澈。云朵在飞机下面，它们和地上看上去很不一样，那么惊奇。我很喜欢这风景。到北京花了我们两个小时。北京机场很大很壮观，飞机和人都很多。我觉得我的旅途一定会很有趣的。

通过上面我对第一次坐飞机的经历介绍，相信大家都很想坐飞机吧，相信大家一定会有机会的哦。

初中英语写作范文：寒假计划

虽然寒假已经过去了，但下面是我对我的寒假计划的介绍，希望大家看看哦。

寒假计划

Plan for Winter Holiday

The winter holiday is coming. I expect it very much, because the Spring Festival is the most important event in the holiday. First, I will relax myself. This term I work very hard, so during the holiday, I want to have fun. My families will go back to the hometown. We will get together to celebrate the Spring Festival. I like families getting together and organizing various activities. It’s funny and warm. Of course, study can’t be ignored. After the festival, I will spend some time on my study. There will be exercises for the holiday. And I will do some reviews for next term. Math is my weakness, so I must work hard to improve it. This is my plan for winter holiday.

寒假即将来临。我很期待它的到来，因为春节是这个假期最重要的节日。首先，我会放松一下自己。这个学期我学习很努力，所以假期期间我想玩玩。我的家人会回老家过节，我们将一起庆祝春节。我喜欢家人团聚在一起组织各种各样的活动，有趣而又温暖。当然，学习也是不容忽视的。春节过后，我会花些时间在学习上。我会完成一些寒假作业然后预习一些下学期的内容。数学是我的弱项，因此我必须努力提高它。这就是我的寒假计划。

上面就是我的寒假计划，希望同学们对自己的每一件事都有个自己的计划，一切都安排好，合理的安排自己的时间哦。

初中英语写作范文：这就是我

这就是我，大家对我还不熟悉吧，下面我来介绍一下吧。

这就是我

This Is Me

My name is Li Xing, a boy in fourteen years old. I come from Dalian, Liaoning Province, which is a beautiful and energetic city. Every year, thousands of tourists visit there. There are three people in my family, my parents and I. My parents are doctors who work in a big hospital in my city. I have many interests. Swimming, reading and movie are my favorites, which bring color to my busy study life. In study, I am good at Chinese and English, while math is my weakness. I work very hard to improve it, but it doesn’t work very well. Besides, I am easygoing and likely to make friends with others. Friendship is an important part of my life.

我叫李兴，今年十四岁。我来自辽宁省大连市。这是一个美丽而又充满活力的城市。每年都有成千上万的游客来这里参观。我家共有三口人，父母和我。我的父母都是大医院的医生。我有很多爱好，其中游泳，阅读和电影是我最喜欢的。它们给我忙碌的学习生活带来了很多色彩。我擅长语文和英语，而数学则是我的弱项。尽管我很努力去提高它，但是并没有很大的作用。除此之外，我也是个外向的人，喜欢和别人做朋友。友情是我生活中重要的一部分。

这就是我，一个完完整整的我，一个不一样的我，一个地球上仅有的我，希望我给大家留下很好的印象哦。

我的学习计划

下面是我对新学期的学习计划的介绍，希望同学们很好的看看下面讲解的知识。

学习计划 Study Plan

At the beginning of this term, I made a plan for my study. Now, I find that I carry it out well in the past month. I was poor in Chinese and English last semester. Therefore, I put the two subjects in the priority and I spent much time on them. Happily, I made progress in the two subjects this semester. Besides, math and physics is not so hard for me, but I must do many exercises to improve my knowledge. Half of an hour for each is necessary and I have always been doing so. The other subjects are easy for me. As long as I carefully listen to the teacher in the class and do some reviews, I can do well in them. While, it does not mean that I attach no importance to them. I make plan for my study to ensure the efficiency of my study.

开学之初，我给我的的学习制定了一个计划。现在，我发现在过去的一个月我能够很好的实行。上个学期我的语文和英语很差，因此我把这两个科目作为我的首要任务并花很多时间在上面。很高兴的是，这学期我这两科取得了进步。此外，数学和物理对我来说不是很难，但是我必须多做练习来增加我的知识。每个科目花上半个小时是有必要的，我一直都是这样做的。其他的科目对我来说很容桂。只要我课堂上认真听课，课后复习我就能够把它们做好。但是，这也不意味着我不重视它们。我给我的学习制定计划以保证我的学习效率。

通过上面我对我的学习计划的介绍，希望给同学们的学习很好的帮助，相信同学们会学习的很好的哦。

[我的初中英语作文

Last year, my father bought a lovely pet for me. She has four white paws

and a white and yellow tail. She has two small ears, two green eyes and eight

whiskers on her face. Her name is Sally and she is one year old.

Do you know what it is? A cat? Yes, it is a cat. She has very short fur and

she is quite small. She weighs about 2 kilograms. She is usually very friendly

and quiet. We never frighten her or pull her tail or ears. She likes walking

around me and playing with me.

If she is hungry, she will miaow. Usually, she eats food from a tin, but

her favorite food is fish. She likes juice if it is not too cold. She likes to

chase and catch mice and sometimes she plays with butterflies. Sally often plays

with balls and pieces of string. She does not like dogs and she hates the rain.

She likes sitting on the sofa and watching TV.

Sally is a very good friend, but she is quite lazy! She never worries

because we take good care of her. She is always a happy cat.

导语：你有几个好朋友呢?你觉得你们之间的友谊珍贵吗?下面是yuwenmi小编为大家整理的相关优秀英语作文，欢迎阅读与借鉴，谢谢!

I have a good friend, her name is Lily. We met each other since we were five years old. At that time, I moved next to her house, because of my father’s work. I felt so lonely when I facing the new environment. Then someday, Lily played in her yard and when she saw me, she smiled at me and asked me to play with her. I was shy at first, but then I was affected by her kindness. We became good friends soon. When I meet difficulties, she will help me without hesitation. I am so thankful to her, I am so lucky to have her as my friend. Our friendship is precious.

【参考翻译】

我有一个好朋友，她的名字叫莉莉。我们在五岁就彼此认识。那时，因为我父亲的工作我搬到她的房子旁边。当我面临的新环境的时候感到如此孤单。然后有一天，莉莉在她的院子里玩耍，她看到我并对我微笑，让我和她一起玩。最初我很害羞，但是我感受到了她的友好。我们很快成了好朋友。当我遇到困难时，她会毫不犹豫地帮助我。我很感激她，我很幸运拥有她作为我的朋友。我们的友谊是珍贵的。

相关标签: 朋友Friend 感谢Thank 真诚Sincere

Lifeis a mirror. If we smile to her, she would also return the happiness to us. Butif we cry, she would be disappointed. Therefore, we should be positive towardlife, so as to get happiness.

生活就是一面镜子。如果我们对她微笑，她也会回报我们幸福。但如果我们哭泣，她会很失望。因此，我们应该积极的态度对待生活，从而得到幸福。

Actually,happiness is everywhere if we keep a good attitude. As we keep a good mood, ourworld will be a sunny land, which is resounded with soft music. However, if weare pessimists, well find our world is full of darkness.

其实，如果我们保持良好的心态幸福无处不在。如果我们保持一个好心情，我们的世界将是一个充满阳光的地方，充满了柔和的音乐。然而，如果我们是悲观主义者，我们会发现我们的世界充满了黑暗。

Whileon the other side, happiness is not a destination but a journey. Because theres no paradise at all, but wecan make a paradise if were hard-working and intelligent. So we should worklike we dont need money, smile like weve never been hurt, and perform ourselveslike no one can see us.

而另一方面，幸福不是目的地，而是一段旅程。因为根本就没有天堂，但如果我们勤劳有智慧，我们可以自己弄一个天堂。所以我们应该就像我们不需要钱一样工作，就像从未受伤过一样微笑，就像没有人能看到我们一样表演。

[初中英语作文：快乐来自乐观和奋斗

Can a persons ideal is great, can be very small, can be as heavy as mount tai, also can light if a feather, and my ideal is to become a doctor, with all the strength I, bring patients health and smile, let them feel warm.

The doctor this profession is noble, great, they in order to save the patient, can regardless of hardship and tired, run-down, they dressed in a white coat, for patients with light, hope, strictly enforce the "white angel" mission, ward off disease. Remember once, when I take the toy, accidentally bumped my head on the corner of a table, I immediately fainted, has been unconscious. My parents immediately taken to hospital, the doctor was observed to me, put me on the bed, stitches, when I awake, I was lying in bed in the home, even head to indolence, just a bit dizzy, in addition, all safe and sound, as if is a dream, it let me know the doctor is indispensable to the whole world a career, if not a doctor, the whole world will be a mess knows his illness but no way, life will not be back, the disease has a place, a person was taken away the precious life, people will not be able to fight against the disease, can only let it pushed around, it is also more firmly the ideal, I want to be a doctor, also deepened my yearning for the doctor.

Some people say that I am careless, when bad to the doctor this career, one thousand fault diagnosis of disease, let the patient take wrong medicine, it can push things into irreparable, but I wont give up, even if have hundreds, I will not give up my ideal, I can overcome one by one, step by step closer to the ideal, then put it into reality.

Ideal is like a beacon, for your guidance, I will not give up, until the day I will achieve it...

一个人的理想可以很伟大,也可以很渺小,可以重如泰山,也能轻若鸿毛,而我的理想是成为一个医生,尽我的全部力量,为病人带来健康和微笑,让他们感到温暖。

医生这个职业是崇高的,伟大的,他们为了拯救病人,可以不顾辛劳和疲倦,彻夜不眠,他们身着白大褂,为病人带来光明,带来希望,严格地执行着“白衣天使”的使命——驱赶疾病.记得有一次,我在拿玩具时,头不慎撞在了桌角上,我顿时昏了过去,已不省人事。父母立刻把我送往医院,医生对我进行了观察,把我送上了病床,开始了缝针,当我清醒时,我已躺在了家里的床上,连头也不痛了,只是有点晕,除此之外,全安然无恙,就仿佛是做了一场梦,这件事让我知道了医生是整个世界不可或缺的一个职业,假若没有医生,整个世界将一片混乱明知自己生病了却毫无办法,生命将不会被挽回,病魔所过之处,一个个人被夺去了宝贵的生命,人们将无力与病魔抗争,只能任其摆布,这也更加坚定了我要成为医生的理想,也加深了我对医生的向往。

有人说我很粗心,当不好医生这个职业,万一诊断错病名,让病人取错药,那么就会把事情推入无法挽回的地步,但我不会放弃,就算有千百个阻挠,我也不会放弃我的理想,我会一一克服,一步步地接近这个理想,再把它变为现实。

理想就像一盏明灯,为你指引方向,我一定不会放弃,直到我将它实现的那一天……

Father’s Day is coming and you must be thinking of giving a present to your

father。 Different people like different kinds of gifts。

If you have enough pocket money， you can buy a useful but not expensive

thing， like a tie。 I think your father will like it。 But if you don’t have

enough pocket money， you can do something that you can do， for example， you can

prepare a cup of tea。 When your father comes back from work， he can drink

it。

No matter what you do， the most important thing is to make your father

happy on Father’s Day。 Don’t you think so?

Human Activity and the Earth

There is no doubt that human activity has an effect on the planet. We see the evidence of mankind’s endeavors all around us. While some of man’s accomplishments, such as the building of transportation systems and the consistent supply of potable water, have made Earth a better place for people to live, they have not come without cost. Overall, it seems that human activity harms the Earth more than it benefits it.

For example, the transportation systems that benefit mankind also create pollution and use up valuable energy resources. While we cannot do without transportation these days, we cannot ignore the fact that it has an adverse effect on the planet. Furthermore, those advances that benefit people do not benefit al the life on Earth. Deforestation endangers many animals, and mankind’s great thirst for water and other resources leads to the extinction of many plant forms. In addition, accomplishments such as the supply of potable water to a community are only response to problems that mankind created in the past. It was man that made the water unfit to drink in the first place. Finally, the damage that human activity causes will eventually have a negative effect on people. They will also suffer the effects of pollution and diminishing natural resources.

In conclusion, it seems apparent that man’s activity benefits primarily himself, not the Earth. Moreover, those benefits are only short-term advantages, and man will also suffer the negative effects of his activity in the future. The Earth does not have an inexhaustible supply of resources, so every effort should be made to conserve resources and limit the impact of human activity on the planet.

参考译文：

人类活动与地球

人类活动无疑会对地球造成影响，Human Activity and the Earth(人类活动与地球)，考研英语作文《Human Activity and the Earth(人类活动与地球)》。我们周围随处可见人类活动的迹象。虽然人类某些成就，如运输系统的建立以及饮用水持续的供应等，使得地球成为一个更适合的人类居住的地方，但这些成就的取得也付出了代价。总体上，对地球而言，人类的活动似乎弊多于利。

例如，运输系统对人类有利，却会制造污染，并用尽珍贵的能源。现在我们虽然不能没有运输工具，却也不能忽视运输工具对地球有不良影响的事实。此外，使人类获益的这些进步不一定能使地球上所有生物都获益