我的理想高中的英语【通用20篇】

In my opinion, the movie “ the pursuit of happyness “ is a meaningful film,

the hero of the movie is an active man. Though his life was very hard, his wife

left because of the situation of their family.His work was also unfortunate. He

never gave up and still work hard.Then he took care of his little son. He is

going after happiness all the time, so his life is running . Time is very

importmant to him, he must finish his task on time , or he wouldnt live a

steady life , he has to pay the rent and taxes and so on, but he insist on

taking every chance to make his life live better and he believe in himself.

Finally, he succeed , his part of life in the movie is moving and real.

I also like the song in the movie very much, it says “ the mountains have

high places and low places ……”

Everyone has a dream, if you work as hard as the hero of the movie , your

dream will come ture, so I will learn from the hero ---Chris Gardner.

And I believe my dream isn’t far away!

On New Years Eve, I turned on the TV as usual to watch the Spring Festival

Gala, and watched it for more than half an hour. Suddenly, an unexpected program

caught the whole familys eyes and deeply moved us. On the screen, there was the

hospital background of Wuhan city. Doctors and nurses were wearing white

protective clothing, and their faces were wearing plastic transparent covers

integrated with clothing. They were fighting against the virus and life danger

Time race. With the host reciting "love is a bridge", I felt a torrent in my

heart. I kept bumping and bumping. I knew that the program was added temporarily

because of the severe situation. Although it had not been rehearsed, it still

made many people cry. No one in the hospital would want to hide, no one would be

lazy, no one would want to make a phone call with his family They regard those

suffering compatriots as their parents and children, and they are determined to

save these patients just like their families.

My hometown mulan, in towns the low-profile, flowing is the biggest tributary of heilongjiang, songhua river.

Morning breeze is blowing, microwave float. Clouds of light on the water with water. The shore, sending out the scent of the grass shore willow branches are swaying gently. Vaguely saw the outline of the mountain, river, continuous mountains were like this microwave, let a person feel is gentle and kind, like a mothers letters, also does not say to tire. The sides of the river is full of green. Grass, leaves, and the river of life is green, they are in the start of the day is full of green hope.

The sun is shining, the songhua river water. River billowing east go, is to seize the legendary treasure? Wash the sound of water, the branches swaying and laughing voices of people constitute a jolly, light travel route. Sunshine is aspersed spread evenly on the river, river sparkling, seems like a big moving mirror, reflecting the dazzling light.

Into the night, the sun sets to the west, on the river and the gold of the horizon. Deep blue sky, a bright moon hanging in the round, each star like a sparkling gem with the sky. The moon reflected on the river, also is so round, like the river on the also have a moon. In the quiet of the night, the songhua river is also gradually fell asleep, ended its journey of a day.

The beauty of a gentle, songhua river is wild, it is quiet...

导入：

第1段：提出一种现象或某个决定作为议论的话题

As a student, I am strongly in favour of the decision. (亮明自己的观点是赞成还是反对)

The reasons for this may be listed as follows. (过渡句，承上启下)

正文：

第2段：First of all... Secondly... Besides...(列出2~3个赞成或反对的理由)

结论：

第3段：In conclusion, I believe that... (照应第1段，构成"总—分—总"结构)

4."How to"类议论文模板：

导入：

第1段：提出一种现象或某种困难作为议论的话题

正文：

第2段：Many ways can help to solve this serious problem, but the following may be most effective. First of all... Another way to solve the problem is ... Finally...(列出2~3个解决此类问题的办法)

结论：

第3段：These are not the best but the only two/ three measures we can take. But it should be noted that we should take action to...(强调解决此类问题的根本方法)

As is shown by the figure/percentage in the table /picture，____ has been on rise/ decrease， significantly/dramatically rising/decreasing from ____ in _____ to _____ in _____. From the sharp rise/decline in the chart， it goes without saying that _____.

There are at least two good reasons accounting for _____. In one hand， ____.In the other hand， _____ is due to the fact that ______.In addition， ______ is responsible for _____. Maybe there are some other reasons to show ______.But itis generally believed that the above mentioned reasons are commonly convincing.

As far as I am concerned， I hold the point of view that _______. I am sure my opinion is both sound and well-grounded.

January 23 20XX

I have rested for XX 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 unnetfortable. 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.

January 24 20XX

Today, when I awaked up, I found the air-conditioner didn’t work. I used the control, but it still didn’t work. I knew the air-conditioner was in trouble. I went downstairs. My father told me two air-conditioner and two netputer had been broken. Because my father used electric making machine to make electric, so the voltage was not stable. It led to the trouble. Oh! Whenever the government will let the factory use electric? If it lasts longer, I will be crazy!!

January 25 20XX

It doesn’t matter that the air-conditioner has been broken. But my notebook-netputer also was broken. I really don’t know what to do. So I went to play basketball. I didn’t know any one in that place. And I was the first time to go there to play basketball. At first, there was no person playing basketball. So I played basketball alone. A few minutes later, some students came to play. So we played together. Of course, we had a match. And It lasts two hours. After the match, I felt I would be dead. I was too tired.

January 25 20XX

No netputer, I will not know to do what. I have no solution to the problem. So I sent my notebook-netputer to the Asus netputer netpany. I must have my netputer repaired. And the other one, it was thoroughly broken. It can’t be repaired again.The netputer netpany told me that my notebook netputer needed one week to repair. The electric led to all trouble. And many electrical appliances are broken. I don’t know when our country can solve the problem.

January 26 20XX

I have lost two netputers, but I had another one. I bought it about five years ago. It can be called curio. Though it was old. But it can still work. Although it works slowly, I was pleased. I can go on internet again. Chatting with my friends is a good relaxing. In the internet, one of my old friends invited me to tomorrow’s party. He told me that some friends would go, too. So I promised to go. A-ha! I can see my old friends. I was very happy and hopeful.

I was so busy in the previous winter holiday for I am going to take the

university entrance exam in July this year. Everyday, I buried myself in

studying. I had to review each required subject and do lots of exercises.

Besides, because I did bad in mathematics and physics, I had to do much more

exercises than other courses, which made me discouraged. I spent more than ten

hours a day in studying. When I was tired, I watched TV or listened to music for

a little while. But It was a big pity that I couldnt go to the see cinema. In

addition, I had to refuse all the invitations of friends and relatives. I only

called them or sent messages in the New Year’s Eve. I desperately hoped that

there is no exam but I know it’s impossible. The only thing I can do is to study

hard to get good scores and can be admitted to Tsinghua University.

When I got settled, the total use of the microwave to do their ownthings to eat. One day, my father saw me, I am afraid to say that I grew up asa cook. I immediately shaken like a rattle-drum head, you said : "That isnot my ideal. When I grow up I want to IT (information technology) industries."Yes, I bought a computer five years ago after his father, I am familiarwith it day by day. Until last year, and I have formed a deep bond with it.From then on, I want success in the information technology industry to makecontributions to the cause of national computer. But my father said I couldonly do in the field "testing the game," is what the new game, andalways let me play with, the report there will be any games. I think what hesaid is not their fault, I always play games recently, those who do not have aveteran like Flash. In recent days, I sprouted out of a bad idea : I will beplaying the game that the network server to the black. My account will revisethe highest level. However, I Xiangliaoyouxiang, this is wrong, but was caughtby the police network is not good. When hackers but also need high computerskills. As a member of the IT industry is my ideal, I would like to advancethis goal, to improve their computer skills.

What is the definition of a good neighbor?Well, in my opinion, a good neighbor should have the qualities: to care aboutother’s feeling, and help others unselfishly.

一个好邻居的定义是什么？在我看来，一个好邻居应该有这些品质：关心他人感受，无私的帮助别人。

I feel lucky to have a good neighbor. Sheis about 65 years old. I remember it clearly，one night, I wascaught in a pouring rain, and then I suffered from a high fever. My parentswere on business, so I turned to her for help, I recovered soon. I have anotherneighbor, we’re in the same age, went to the same school. We always playedtogether. I’m not good at Physics at that time. It was hard for me to pass theexam. After school, she always helped me with my Physics. With her help, I madea big process in my final exam.

我感到很幸运自己有位好邻居。她大概65岁。我记得很清楚，一个风雨交加的夜晚，我发烧了。我的父母正好出差，所以我向她求救，很快，我康复了。我还有一邻居，年龄和我一样，在同一学校上学。我们总是一起玩。那段时间，我的物理不是很好，考试很难通过。放学后，她总是帮助我补课。通过她的帮助，我在期末考试中取得了很大的进步。

Good neighbors create a comfortable andsafe living environment. They’re also our good friends. They make a bigdifference in our daily life.

好的邻居提供了舒适和安全的居住环境。他们也是我们的好朋友，让我们的生活变得与众不同。

[高中英语作文：好邻居

Do chinese have any morals?Thats a good question.Many people insist that ideas about right and wrong are merely personal opinions.Some voicesthoughare calling chinese back to traditional moral values.some people suggests that great moral stories can build character.Many chinese still believe in moral values.But what are they?

To begin withmoral values in chinese are like those in any culture.In factmany aspects of morality are universal.But the stories and traditions that teach them are unique to each culture.Not only thatbut culture influences how people show these virtues.

One of the most basic moral values for us is honesty.People still believe that "honesty is the best policy."

In no way can this brief description cover all the moral values .Courageresponsibilityloyaltygratitude and many others could be discussed.But no matter how long or short the listmoral values are invaluable.They are the foundation of any culture.中国人有道德吗?这是个好问题。许多人坚持对与错乃是个人的意见。一些声音，但呼吁中国回到传统的道德values.some人认为伟大的道德故事可以塑造性格。许多中国人仍然相信道德的价值。但他们是什么?

首先，中国人的道德价值观和任何文化中的一样，事实上，道德的许多方面是普遍的，但教给他们的故事和传统对每一种文化都是独一无二的，不仅如此，文化影响人们如何表现这些美德。

对我们来说，最基本的道德价值之一是诚实，人们仍然相信“诚实是最好的政策”。

在任何情况下，这一简短的描述都包括了所有的道德价值，勇气、责任、忠诚、感激以及其他许多人可以讨论的，但无论列表有多长或短，道德价值都是无价的，它们是任何文化的基础。

Hello, everyone. I’m am a student in No.1 Middle School. I’m very proud that I have been chosen to speak to you all today.How to protect/save our environment/world?

The environmental pollution is worse and worse /more and more seriously today. Water is polluted ,we have no clean water to drink Many trees are cutting down, some animals is getting less and less.Some factories is poring dirty air in the sky , the population is increasing faster and faster ,resources is getting less and less…etc. Not only does it affect our lives and health, it also has a great affection in the future.

The first fact I worry about is noise pollution. People can"t sleep well if there is too much noise. That"s why so many people prefer to live in the countryside rather than live in the noisy city. I suggest all the factories and cars shouldn"t make terrible noises. If they make terrible noise that isn"t allowed, they will be fined, and we can also produce the cars which can"t make terrible noise.

The other pollution is rubbish pollution. If everyone makes so much rubbish, one day we may live in a world filled with rubbish. Some people throw the waste paper about. I suggest rubbish should be put into different kinds of dustbins or paper bags.

[高中保护环境的英语作文

“思维方法决定做事行为，做事行为决定习惯，习惯决定性格，性格决定命运。”比尔·盖茨的一席话令我对人生又有了新的感悟。

一次次的失败，一次次的总结，但每次结果却没什么大的变化。成绩的不见好转，说明我自己在思想上存在问题，所以当务之急并不是解决成绩，而是思想上的问题，因为这将关系到我一生的命运。

成绩问题的确很让人头疼，不过路是自己选的，问题也应由自己来承担，针对单科存在的问题还是应该系统的分析。

这次考试语文试卷得了104分，放在高一高二的确是个高分，但对于高三来说，语文110分以下的成绩都是低分。汉语作为母语，每个人在思想中都已形成了一种固定的模式，所以要人为的改变这种模式确实有点困难。语文卷总的来看，影响成绩的还是选择和作文，这就涉及到一些基础知识，基础知识丢分，我个人认为还是比较好弥补的。我还是很有信心在第二次月考中突破110分的~

数学自古以来就是文科生的弱科，但这个社会又是一个弱肉强食的社会，如果你不强，就注定被人吃掉。所以我还是选择无条件的提升数学成绩，针对此次考试，数学卷子综合来说还是比较简单，但因马虎未审清题意，所以丢了许多不该丢的分。此次数学考试，就我个人看来124分是正常分数，因为这124分都是基础分，最次也得过120分。上高三以来我的数学成绩一直是教室里最好的，但这次的失误令我十分懊悔，希望没有令数学老师失望，下次月考，我会拿回本属于我的东西。

英语常被中国人看作第二种语言，但在经济发达、国际交流日益频繁的今天，英语早已成为了中国的第二种母语。汉语、英语不过关，很难在社会上生存，此外还必须掌握日语或法语第二门语言。香港大学的面试更是以英语为沟通方式，由此可见，英语对于我们这些90后来说非常重要，必须无条件的学好英语。

政史地一直被人们视为小科，但自分文理以来，政史地就已占据了半片江山，想要考高分，政史地绝不能缺腿。可我现在还仅仅是拘泥于及格…首先在基础上我就很不过关，所以受题的难易程度影响很大。感觉基础上的问题是最好解决的，只要付出时间与努力就应得到相应的收获，但事实证明，并没我想得那么简单。上高中以来，欠下了太多的债，现在想一次性还清的确很不现实。现在我所能做的就是坚持，不屏弃。正如政治说的那样“做好量的积累，抓住时机，促成之变”。

已经在路上，就不要忘记出发时所说的话。是否还记得当初许下的承诺，是否还记得当初夸下的海口。做人应做到“无悔”，已经到了这步田地，结果怎样，已经不重要了，重要的是过程，我们到底为人生积累的多少的财富。从高考考场走出，是否敢对自己说“我无悔”，如果能，那就没有对不起这三年的努力，就不会给自己的人生留下遗憾。

知识没能学会，但做人我们还总是要学会的。所以说思维方法很重要。

我们现在所做的一切都是在为自己的人生积累财富，不要放过每次学习的机会，知识无处不在，我们应该懂得探索。每个人都应有自己的追求，不然这真是一个失败的人生，锁定目标，专注重复，永不言败。

人的一生就好比在拍一部电影，有的人把自己看成是电影的观众，享受着无穷的乐趣，沉浸在那虚幻的世界中;有的人把自己看作电影的主角，主演着人生的点点滴滴，将自己的“力量”发挥到极限;而我将自己视为电影的编导，影片的剧情由自己决定，因为我不想做那无知的观众，也不想做那失败的演员，我要导演自己的人生，拍好这部电影，因为我不想给自己留下遗憾，因为我要做到真正的无悔。

思路决定出路，态度决定高度。命运掌握在自己手中，自己的命运应由自己来主宰。我要做成功的编导，为自己的高中生活画上圆满的句号。所以我一定要加倍努力，不为自己留下遗憾。当从高考考场走出时，我一定会昂首挺胸的对自己说“我无悔”!

高一英语月考反思作文

转眼间，我成为高一学生已3个月了。回首这3个月，心中就产生了许多感触。这3个月中经历的每一天，都已在我心中留下了永久的印记，因为这些印记见证我这样一个新生的成长。

现在我觉得自己似乎明白了许多事情，但是仔细琢磨后又不尽然。或许在以后也会嘲笑现在的渺小，但我们不得不笑着回首我们所走过的路.

这次考试,我总结了以下的点滴:在学习上，我深知学习的重要性。我认为面对知识就是力量，离开了知识将是一个一无是处的废人。中学时代是学习现代科学知识的黄金时代，我应该抓住这个有利的时机，用知识来武装自己的头脑，知识是无价的。

首先，合理安排时间，调整好作息时间，分配好学习、工作、娱乐的时间。时间是搞好学习的前提与基础，效率和方法更为重要。

其次，要保质保量的完成老师布置的作业，认真对待考试，考前认真复习。

另外，积极阅读课外书籍，扩大自己的知识面抓住点滴时间学习。经常提出问题，与同学讨论，向老师请教;搞好师生关系，师生相处得融洽和睦;在这次期中考试中，尽管感觉良好，但还是不理想的地方，仍需继续努力，抓紧自己的学习。

知识无止境，探索无止境，人的发展亦无止境，我还有很多的知识需要学习。

我要确定未来的发展目标，我也要对未来充满信心。当然，这需要老师们的精心培养和同学们的真诚帮助我希望我能进步.

Luxuriant it gives us boundless endless fun. A long summer vacation to supply the vast reveals itself for the classmates of the stage. And plans to use the summer vacation time, has become our current begin to should do.

One, scientific and reasonable to develop a plan of summer vacation work.

Amount of work in the holiday, want to do the work. To put these job screening, mediation, according to the summer fair time settling, draw up a table "" summer deeds. All the cruel deeds should be carried out in accordance with the "schedule", but still need to be careful mix.

Second, serious review, welcome to scholarship test

This test is after the summer vacation the first put a summary of the semester, summer vacation, want to put the first semester studies the entire contents of the seriously review again, and to formulate a "review schedule. For good measure.

Third, develop my funny hobbies, growth of my specialty.

According to my funny hobby, takes an active part in all kinds of funny Hong shed organized group, such as: painting, calligraphy, music, English, journalism skills, grasp the skills, as to lay a foundation for the growth of the letters patent day.

Fourth, study diligently, careful accumulation, longer than writing, used motor

Manipulation of the heat I visit a few good books as points. Such as: national classics, history allusions, good books and periodicals, fables, fairy tales, etc., progress I browse ability and writing level, edify sentiment.

Else, might as well also active in the summer sports refined, help parents do more housework, experience to meet the social actual deeds... Only seize the opportunity to reveal themselves constantly, expand the line of sight, to be healthy growth.

Dream is like a star in the sky,it shows the direction in the night.

every one of us has dreams,but how to make our dream come true?I think there are 3 ways to make our dreams come true.

first,never give up your dream.you should always do the things which will help you to make your dream come true.

second,keeping reading books every day.Books help us to know what we did is right and what wrong.

finally,be confident.every one should be confident in daily life,especially when faced with difficulties.

Dream ,the most beautiful word in the world.let work hard to achieve our dreams from now.

Cellphones are becoming more and more popular among the middle school students at present.About that,people have different opinions.

目前，手机在中学生中变得越来越普遍。关于这个问题，人们有不同的看法。

Some think it is good for students to bring a cellphone because its more convenient to contact to each other.But othersdo not think so.They think it is bad for students to bring acellphone.Because the students will use mobile phones to play games,sent text messages,watch movies and so on,which will do harm to their study.Andthe teacher and students would be disturbed if cellphone ring during the class time.

有的人认为携带手机对学生有好处，因为这更便于他们相互联系。但是其他人不这么认为。他们认为携带手机对学生有害。因为学生会用手机玩游戏，发短信，看电影等等，这对他们的学习是有害的。而且，如果上课的时候手机响会打扰到老师和同学。

In my opinion,bringing cellphones to school is not a bad thing if we make the best use of it.As we all know,a cellphone is one of the quickest tools for us to exchange information in 21st century.Ifthere’s

an accident,itsmore convenient to dial for help immediately.Whats more,we can use cellphones for relaxing ourselves a little bit when were tired of studies.In my mind,its not wrong to follow the cellphone fashion,but the most important thing is to know how to use them in a right way.

我认为，如果我们合理利用它，带手机到学校并不见得是件坏事。我们都知道，在21世纪手机是我们交流信息最快捷的工具。如果发生事故，手机更方便我们立即拨打电话求助。另外，当我们学习觉得累的时候可以用手机来给稍微放松一下。在我看来，跟随手机时尚并没有错，但是最重要的是懂得正确使用它们。

Spring is my favorite season. In spring days, everything comes out. While

you are walking outside, your eyes will be filled with green.

In spring days, our world is a sunny place, which is covered with green

trees and colorful flowers, so it can be described as a paradise. Especially

when you are in the countryside, you can see green mountains, vast fields, clean

streams, and all the living creatures, coexisting harmoniously. All of them make

up the most beautiful picture in the world.

In spring days, the sun shines brightly, and theres also some pleasant

breeze. So how charming it is while feeling the spring wind blow us. Its also

wonderful to enjoy the beautiful sunshine. You will also get a lot of

refreshments while having a walk outside.

I hope we can enjoy the life of spring every day.

参考翻译

春天是我最喜欢的季节。春天一切都发芽了。在外面散步，眼睛里看到的都是满满的绿色。

在春天，我们的世界是一个充满阳光的地方，到处都覆盖着绿色的树木和色彩缤纷的鲜花，所以它可以说得上是一个天堂。尤其是当你在乡下时，你可以看到绿色的山，广阔的田野，清澈的小溪，和所有的生物和谐共存。所有这些组成了世界上最漂亮的画。

春天，阳光灿烂，还有一些令人愉快的微风。所以感觉到春风吹过我们的时候该是是多么的令人陶醉。也是享受美丽的阳光时候。你也会觉得恢复精力当你到外面走一走时。

我们希望我们可以享受春天的每一天生活。

5月1日高二（3）班的学生志愿者li yue 和zhang hua 去阳光敬老院（sunshine nursing home）开展志愿者活动（送水果，打扫，聊天等）。假设你校英语报的记者，请写一则新闻报道：1。 时间，地点，人物，活动；2。 老人们的反映；3。 简短评论

范文：

students volunteers brought sunshine to the elderly。on may day， liyue and zhang hua， students from class three，grade two， went to sunshine nursing home and did some voluntary work。 upon their arrival。 li yue and zhang hua were warmly welcomed，and respectfully， they presented the elderly with fruits and flowers。then they started working at once，cleaning the windows and sweeping the floor。 everything done。 they sat in the yard chatting with the elderly people。

when it was time for the volunteers to leave。 the elderly people thanked them for their kindness。 they said it was such a beautiful day that they would remember it forever。

li yue and zhang hua were very happy。 what they did has brought joy to other people and enriched their own lives。

by chen jie， school newspaper。

[高中志愿者活动英语作文

Nowadays, pets become so close and friendly to our human-beings that more

and more people enjoy keeping them. Pets can bring them a lot of joys and

happiness, because playing with pets is a good way to communicate with the

nature. Besides, pets can comfort old people who live alone. With the companion

of pets, they won’t feel lonely. Nevertheless, I’m not interested in keeping

pets at all. For one thing, keeping pets is bad for environmental protection,

since pets usually make a lot of noise and contaminate the roads. For another,

the virus carried by pets may cause fatal disease. What’s more, sometimes pets

may attack people when they are unhappy. Consequently, we had better not keep

too many pets, so as to ensure our health and security. Besides, those pet

lovers must take some effective measures to prevent their pets from hurting

people and polluting our environment.

As the Christmas Day is coming, our class decided to send some gifts to our

teachers, because we wanted to show our gratitude to them. At first, we had no

idea what to buy, because we wanted to do something special. So at last an idea

came to my mind. I advised to write a card, pasting some pictures of classmates

on it. Everybody agreed with me, so we spent a day to take some funny pictures,

and everybody wrote down their names on the card. When we sent this gift to the

teachers, they loved it so much. They were so impressed by this precious

surprise and would keep it forever.

新年新计划(My plan for the new year)

The new year is coming!Now,its the time to make plans for the new year.Here is what I will do:

1.I will get better grades.Im good at English and Chinese, but I need to improve in my Math.Ill study better!

2.I will break my bad habits.I often get up very very late. To get early is good for my health. So Ill get up earlier than usual.

3.I will eat better.Ioften eat a lot of junk food. they are not good for my health.I should eat more fruits and vegetables.Theu will make my body healthier and stronger.

This year was a good year for me,but Ican make next year even better.Ill work hard to keep my resolutionsWhat are your plans for the new year?

Whih best wishes for the new year.

Oceans becoming more acidicThe worlds oceans are slowly getting more acidic, say scientists.The researchers from California say the change is taking place in response to higher levels of carbon dioxide in the atmosphere.The lowering of the waters pH value is not great at the moment but could pose a serious threat to current marine life if it continues, they warn.Ken Caldeira and Michael Wickett, from the Lawrence Livermore National Laboratory, report their concerns in the journal Nature.Increasing use of fossil fuels means more carbon dioxide is going into the air, and most of it will eventually be absorbed by seawater.

Once in the water, it reacts to form carbonic acid.Scientists believe that the oceans have already become slightly more acidic over the last century.But these researchers have tried to predict what will happen in the future by combining what we know about the history of the oceans with computer models of climate change."This level of acidity will get much more extreme in the future if we continue releasing CO2 into the atmosphere," said Dr Caldeira."And we predicted amounts of future acidity that exceed anything we saw over the last several hundred million years, apart from perhaps after rare catastrophic events such as asteroid impacts."If carbon dioxide release continues unabated, ocean pH could be reduced by as much as 0.77 units, the authors warn.It is not absolutely clear what that means for marine life, however.

Most organisms live near the surface, where the greatest pH change would be expected to occur, but deep-ocean lifeforms may be more sensitive to pH changes.Coral reefs and other organisms whose skeletons or shells contain calcium carbonate may be particularly affected, the team speculate. They could find it much more difficult to build these structures in water with a lower pH.In recent years some people have suggested deliberately storing carbon dioxide from power stations in the deep ocean as a way of curbing global warming.But Dr Caldeira said that such a strategy should now be re-considered."Previously, most experts had looked at ocean absorption of carbon dioxide as a good thing - because in releasing CO2 into the atmosphere we warm the planet; and when CO2 is absorbed by the ocean, it reduces the amount of greenhouse warming.