高中关于环境的英语作文模板实用20篇

Its Sunday today. I got up early and did my homework on the table. All of a

sudden I remembered the mothers day, a picture of my mind, remembering a past

thing that moved me.

Thats the case. After coming home from school that afternoon, my mother came

back. I found that my mother was very tired, his eyes were squinting, and I

yawned. So she sent me to do my homework at home. But I felt very sad to see my

mother working so hard, so I decided to share the housework for my mother. I

began to pick up the stuff in my home, first fold the newspaper, and then the

glass was cleaned.

I put the glass on the pot filled with water, and then picked up the cloth, a

brush up. I found a little dirty in a cup, and I took some detergent to wash it.

Suddenly, the cup from the hand slipped, piercing sound startled me. I hastened

to pick up the pieces of glass on the floor. At this time, I found that my

mother was standing in front of me, and she said, "dont pick up the pieces with

your hands. Let me come." I stood up and bowed my head embarrassed and said,

"Im sorry, mom, Im too careless." I thought: this must be closed. Mother

walked over and touched my head and said, "kid, dont frighten you?" Let mommy

pack up, you go out and watch TV. " Mothers words are very gentle, but make me

more difficult, unwittingly I cry.

Looking back on this, I felt very warm. It told me that maternal love is

selfless and great, and I want to repay my mother on Mothers day.

teacherare the most brilliant career and also the most extraordinarcareer.

tanghong thiyear over 20 yearold, ia beautiful young dance teacher. the earthquake, she iwelcome to the studentrehearsing june 1 childrendaof the dance. found dangerousituation, she pushed the studenta corner, thehold in their arms, fell to the collapse of the buildingon her her bodwafound, she fushen趴the wall in the corner. her arms, three girlsurvived.

the ruins, her broken bodinto liangjie, facial xueroumohu. her handstill firmlyongzhe two students! bai how people can not baikai her handtightllouzhu students! when the earthquake happened, she waevacuated studentleave the classroo shouzuwucuo see there are two students, she ran the last step, a first-hand louzhu, outside-in. teaching building suddenlcollapsed, she and several studentburied in the rubble. the teacher called to qian, graduated from universitlast year, to shifang-habitat when english teacherin primarschools. qian to the father of allegiance to the sea ishifang nanquan, deputprincipalin primarschools, he beitongyujue: i can understand that, ateachers, should be so! should do!

one day on my way home from school, i saw an old woman standing by the roadside①, with a heavy bag on her back. she seemed very worried. i went up to ask her what the matter was. the granny② told me that she had just come from the countryside to see her son, who worked in the steel works. as she had never been here before, she did not know the way to the factory. so i took her there. there was really a lot of difficulty in finding her son＇s place. the granny and her son were very thankful to me.

i got home very late, tired and hungry, but i felt happy, for i had done a good deed for the people.

Many people believe that we have developed into a “throw-away society” which is filling with plastic bags and rubbish. What do you think?

Wind blows up bags higher and higher in the sky. It is a scary thought that some day the earth will turn into a huge garbage land. Wastes, if not treated properly, will make our life a living nightmare.

The environmental issue is getting worse almost every day in cities with very large population. As is often the case, city development outpaces environmental protection. People consume great amount of natural resources and produce wastes. To effectively address such problems, cities need to spend big money. In addition, they need to call to the attention of people to become more environmentally responsible.

Many people are becoming less responsible and easily influenced by bad behaviors. “Why should I care while others shouldn’t?” Such idea makes some people only concern with places where they live and work. Furthermore, people sometimes even purposely litter for revenge to other people.

Although media promotes environmental awareness, good people are often snubbed as posers who try to set up a superior image in real life. Consequently, they are intimated of receiving negative comments for doing the right thing. Wrong as it is, such phenomenon is widespread especially among youngsters and people with low income and little education.

However, our society is waging a campaign against environmental pollution. People learn the harms of un-degradable lunch boxes and other polluting wastes. Laws in many countries prohibit or limit excessive use of polluting bags. Companies are continually replacing the old materials with more environmental friendly and recyclable kinds. Scientists have developed more effective technologies in waste treatment. As time goes by, more and more people put high priority on the protection of environment for a healthier life.

To sum up, people produce huge amount of garbage and the environment is seriously polluted because of lack of financial resources, sense of responsibility, or efforts. But the world will not turn into a “throw away” society if people put in sufficient efforts to protect our environment.

假如你是李华，现任你们学校的学生会主席。你将代表学生会起草一份倡议书，号召全校同学行动起来，为环保运动做出自己的努力。同时下周六学校将组织同学在全市进行环保宣传活动，征召志愿者到校学生会报名。

注意：(1)短文应该包括以上所提供的主要信息，可适当发挥;(2)词数：120左右;(3)倡议书格式以提供，不计入总词数;(4)参考词汇：征召(新人) recruit。

15 May, 2010

Dear brothers and sisters,

____________________________________________________________________

____________________________________________________________________

Yours sincerely,

Li Hua

【参考范文】

15 May, 2010

Dear brothers and sisters,

On behalf of the University Students Union, I, the Chairman of the Union , am earnestly calling for your active participation in our environmental protection campaign. It is the duty of every global villager; man just can not sustain his glorious civilization without a rewarding environment, which will be possible only if man makes considerable efforts to protect the environment.

Do you cherish precio us opportunities to volunteer in our joint efforts in environmental protection? Here is a great one not to be missed by any enthusiastic youth; Right next Saturday, our university is to run a publicity campaign to advocate environmental protection across the city. The University Students Union will be in charge of recruitment of volunteers. Lets join our hands and take action immediately.

Yours sincerely,

Li Hua

How to protect the environment?

Nowadays, more and more people realize it`s necessary and important to protect the environment. Also,there are some people who don`t pay attention to hygiene and they can`t stop littering the rubbish casually or spitting everywhere all the time.And in addition, there are a few factories often cutting down the trees, discharging chemicals and dirty water and so on.And it causes many problems like the Greenhouse Effect.If they do these day by day and our life will be harder and harder,so we have to stop them. To stop them we can put up commonweal advertisements and tell them the detriment of destroying the environment.So we can start from now to make a beautiful life.

如何保护环境?

现在，越来越多的人意识到保护环境是必要和重要的。同时，也有一些人不`不注意卫生，他们可以`停止乱扔垃圾垃圾随便或随地吐痰的时候。此外，还有一些工厂经常砍伐树木，排放的化学物质和脏水。这引起了诸如温室效应等问题。如果他们天天这样做，我们的生活会变得很困难，所以我们必须阻止他们。为了阻止他们，我们可以提出公益广告，并告诉他们破坏环境的危害，所以我们可以从现在开始做一个美好的生活。

After seeing so many movies about the youth, we are starting to wonder about what do we have in our youth, the fight, the drink or the love?

My answer is no.

What we see from the movie is not true, the plots are exaggerated and misunderstood.

For students, their youth is the process of fighting. They have studied so hard to realize their dreams.

When they are in primary school, they want to do well and make their parents be proud of them.

When they are in middle school and high school, they need to take part in the exams so as to enter the better future schools.

Even they are in college, they still need to study and fight for the ideal job. There is no doubt that most people keep fighting for their future and this is the memory of youth.

看了很多关于青春的电影之后,我们开始思考我们的青春有什么,打架,喝酒或谈恋爱?我的答案是否定的。

我们从电影看到的是不正确的,故事情节被夸大了,也被误解了。对于学生,他们的青春是战斗的过程。他们努力学习来实现梦想。

在上小学的时候,他们想要做的很好,让父母为他们感到骄傲。当他们在初中和高中的时候,需要参加考试,以便将来进入更好的学校。甚至在大学,他们仍然需要学习和争取理想的工作。毫无疑问,大多数人一直在为自己的未来奋斗,这是青春的记忆。

[高中英语作文：青春的记忆

1. a big headache令人头痛的事情

2. a fraction of 一部分

3. a matter of concern 焦点

4. a series of 一系列,一连串above all 首先,尤其是

5. absent from不在,缺席

6. abundant in富于

7. account for 解释

8. accuse sb. of sth.控告

9. add to增加(add up to)

10. after all 毕竟,究竟

11. agree with同意

12. ahead of time / schedule提前

13. ahead of 在...之前(ahead of time 提前)

14. alien to与...相反

15. all at once 突然,同时

16. all but 几乎;除了...都

17. all of a sudden 突然

18. all over again 再一次,重新

19. all over 遍及

20. all right 令人满意的;可以

21. all the same 仍然,照样的

22. all the time 一直,始终

23. angry with sb. at/about sth.生气,愤怒

24. anxious about/for忧虑,担心

25. anything but 根本不

26. apart from 除...外

27. appeal to 吸引，申诉，请求

28. applicable to适用于

29. apply to适用

30. appropriate for/to适当,合适

Today was Sunday, I was so happy because our family had a big meeting, we went to the park to have the barbecue. We called our relatives to join us, it was such a great party. As the family members haven’t got together for a long time, so my father decided to get everybody united. In the park, I played with my cousins, we were taking a visit of the park while the parents were doing the barbecue.

When my counsins and I played so tiredly, we went to join the grow-ups’ activities.

The fathers were talking about the business stuff, while the mothers were talking about the children and their daily life. Our family was so harmonious, we shared the things together and helped each other. I like this activity so much, I wish my families can have more time to be together.

今天是星期天，我很开心，因为我们的家庭有一个大聚会，我们去公园烧烤。我们叫上了亲戚来加入，这是多么盛大的派对啊。由于家庭成员间很久没有在一起了，因此父亲决定把大家团聚在一起。在公园里，我和表亲们在玩，我们在参观公园，而家长们则在烧烤。在表亲们和我玩累了，我们就加入大人们的活动。父亲们在谈论生意上的事情，然而母亲们在谈论孩子和日常生活。我们的家庭是那么的和谐，一起分享东西和彼此帮助。我很喜欢这样的活动，我希望我的家人们能有的时间相聚。

[高中英语作文：家庭烧烤

My teacher is a language teacher, I even named her medium height, slender build very, very white skin, thin face, long hair. At high straight nose, her smile on his white teeth. Teachers have a pair of big eyes, worse, and I have a small back Xiang Li said, Suddenly I heard the name of teacher, I look back and see the teacher uses the eyes looked at me sternly. I anxiously pretend seriously today, I think I will never have dared to make a small case. Teachers work very hard for every day she patiently taught us very early to go to school to learn to read. counseling our homework. Her health is not very good, but she still adhere to our school. Teachers of our study was very strict, whenever we did not complete homework, No matter who she has relentlessly criticized him. As I recall, in a language at home is dictated word, I listened to three little words, thinking no big deal. be next morning, she discovered that I did not finish the work, I go to the podium. She hit me with the paddle while CFS, a serious side to me : "We must be completed on time after homework!" Teachers like my mother showed us We have much respect and love her.

[我的老师高中英语作文

今天，我按老师的要求去调查周围环境保护的情况。

Today, I according to the requirements of teachers to investigate the protection of the environment.

我先来到公园，就看见那儿到处都是垃圾。我眼前有一个阿姨，她坐在石凳上，吃着瓜子，还把瓜子壳扔得满地都是。我看见了很生气，就去阻劝阿姨。可她却一副事不关己，高高在上的样子。我看见有清洁工在打扫卫生，可是周围人扔垃圾的速度远比他们打扫的要快得多。

I first came to the park, I saw there was rubbish everywhere. I have an aunt, she sat on the bench, eating melon seeds, the seeds were strewn across the floor. I saw aunt is very angry, to dissuade. She has a pair of NIMBY, superior. I saw street cleaners cleaning the health, but the surrounding people throw garbage much faster than they clean the much faster.

我又来到了公园东侧的小河边，看见水面上漂浮着塑料袋、饼干包装袋……甚至还飘着几条小鱼的尸体，散发着一股股令人作呕的气味。

I went to the park on the eastern side of the river, saw floating on the water with plastic bags, packaging bags of biscuits...... Even with a few small fishs body, exudes the smell shares turn ones stomach.

我来到了菜市场，看见地上尽是烂菜叶、烂水果，还有还有家禽的羽毛及内脏，这么脏的地面让我的脚都不敢踩下去了。哎呀!糟了!我踩在香蕉皮上摔跤了，裤子都被弄湿了!我赶紧爬起来，慌忙逃离。

I went to the vegetable market, saw the ground was full of rotten vegetables, rotten fruit, as well as poultry feathers and visceral, the dirty ground make my feet have not stepped on. Oh! Bad! I stepped on the wrestling on a banana skin, pants are wet! I quickly got up, hurried away.

周围的环境简直糟透了，若再不注意保护，我们人类定将无法生存。让我们一起行动起来吧，保护环境，从“我”做起。

The surrounding environment is bad, if we do not pay attention to the protection of the human, we will not survive. Let us act together now, Protect environment, from "I" to start.

with the improvement of our living standard, more and more people can afford a car. as a result, our roads are more often than not crammed with cars. however, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. so nowadays we advocate to lead a low-carbon life.

my suggestion is we should ride bikes more often instead of driving cars.by riding a bike, we can not only exercise our body but also protect our environment. why not have a try, my dear friends?

与我们的生活水平的提高,越来越多的人都买得起汽车的.因此,道路往往没有堆满了汽车.然而,随着越来越多的废气排放是汽车、空气污染问题变得更加严重.所以现在我们提倡过低碳的生活.

我的建议是我们应该更经常骑自行车而不是开车骑一辆自行车,我们不仅能锻炼身体,也能保护我们的环境.为什么不试试,我亲爱的朋友?

The Ten-minute Break Between Classes Time seems to be so limited for us Senior Three students. As a result, more and more students try to study from early morning till late afternoon, even during the ten-minute breaks. In my view, taking a ten minute break between classes is equally important. Otherwise, we will feel exhausted both physically and mentally,During the ten minute break, we are supposed to do something really relaxing, we need is to have a rest, instead of getting more tired. Besides, studying during the break doesn ’ t necessarily mean that you will achieve more. So doing nothing tiring in that short period is of greater significance. As far as my ten-minute breaks are concerned, sometimes I take some simple exercise, such as having a walk with my classmates, or just a free chat to refresh myself. When the next class begins, I feel energetic again.

"Protect the environment, everyone duty", when it comes to protecting the environment, I think of a thing.

Its a sunny afternoon, my mother and I happily went downstairs for a walk, inadvertently, I found on the green lawn with an old, dirty battery. Battery is harmful to our environment a major killer! A grain of small button battery can be 600 cubic meters of water pollution, the equivalent of a mans lifes water consumption; Section 1 battery rot in the field, can lose one square metre of land utilization value, and cause permanent public nuisance. Think about this, I ran to my mother had said it again, I say again: "mom, I want to throw waste batteries into the dustbin." Mother think I speak very reasonable, I happily run to waste batteries, thought: I really do a meaningful thing! I gently picked up the waste batteries, threw it into the dustbin.

"Not to small and not for good, it is a sin to." As a primary school student, we should start from me, start from small things, start from the side, start from now, pick up every piece of paper on the ground, take good care of trees and flowers, love small animals. Lets go and look for the green world, to make our world a better place!

“保护环境，人人有责”，说到保护环境，我就想起了一件事。

这是一个阳光明媚的中午，我和妈妈高高兴兴地下楼散步，无意中，我发现在绿油油的草坪上有一个废旧的、脏兮兮的电池。电池可是危害我们生存环境的一大杀手!一粒小小的钮扣电池可污染600立方米水，相当于一个人一生的饮水量;一节一号电池烂在地里，能使一平方米的土地失去利用价值，并造成永久性公害。想到这，我跑到妈妈跟前把这件事儿说了一遍，我又说：“妈妈，我想把废电池扔到垃圾箱里。”妈妈觉得我说得很有道理，我欢快地跑到废电池旁边，心想：我真是做了一件有意义的事啊!我轻轻地捡起废电池，扔进了垃圾箱里。

“勿以善小而不为，勿以恶小而为之。”作为一名小学生，我们要从我做起，从小事儿做起，从身边做起，从现在做起，捡起地上每一片纸屑，爱护花草树木，关爱小动物。让我们一起去寻找绿的世界，让我们的世界变得更加美好!

October 1st is the national day of our country, which is a public holiday for the whole country. It’s an important day that marks the beginning of PRC. On that day, there are plenty of celebrations holding throughout the country, from the central government to the general people. And public places, including big squares, parks are decorated in festive theme. In recent years, the national holiday means the golden week as well, which is a short holiday that all people expect to. With the improvement of living standards, people have more money and desire to travel and the golden week is a good chance for them. Besides, for those people who would not go out, it’s a good time to have a good rest as well. Therefore, the national day means a lot to the Chinese.

10月1日是我国的国庆节,这对于整个国家是一个公共假日。这是一个重要的日子,标志着中华人民共和国开始。在那一天,有很多庆祝控股全国,从中央政府到一般人。和公共场所,包括大广场,公园在节日的装饰主题。近年来,国家节日意味着黄金周,这是一个短暂的假期,所有的人都期待。随着生活水平的提高,人们有更多的钱和渴望旅游黄金周是一个很好的机会。除此之外,对于那些人不出去,这是一个很好的时间来好好休息一下。因此,中国的国庆节意味着很多。

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.

Today was the first day of my new life. I looked at my new books and checked everything for the new school year. I was excited as well as worried.

今天是我新生活的第一天，我翻看我的新课本，检查了新学年的一切。我既激动又担心。

Entering new school, I was curious about everything, new classrooms, new teachers, new classmates etc. It would be a new start for each student. And what I was worried about is that I had no friends here. I wondered if no liked to play with me. Were the teachers strict with students?

进入新的学校，我对所有事情都很好奇，新的教室，新的老师，新的同学等等。这对每个学生来说都是一个新的开始。我所担心的是在这没有朋友。我想知道是不是没有人喜欢和我玩。老师对学生是不是很严厉?

I fell relaxed when the teacher asked me, What else could I help you, freshman?". I found that the teachers were kind and polite, and the classmates around me were friendly. While I was thinking about how to get on well with my classmates, my desk mate showed me his favorite Ipad4s. He wanted to play with me, but I didnt know how to play, so he taught me patiently, and we played happily.

当老师问我：“我能够帮你什么吗，新同学?”的时候，我一下子觉得放松了。我发现老师很善良很有礼貌，周围的同学也很友善。正当我想着怎样和同学相处的时候，我的同桌给我看他最爱的Ipad4s。他想和我一起玩，但是我不知道怎么玩，于是他就耐心的教我，然后我们就开心的玩起来。

Worries have gone, and happiness is coming.

忧虑已经消失了，幸福即将来临。

Now, patches of forest became less factories. Endless grassland into desert, limpid streams into a muddy gutter, beautiful grassland into a barren desert. Why? Why is this? This is because people caused by deforestation.

The earth is home to the survival of people, and the human is continues to destroy it, people cut trees have purify air, reduce noise and adjust the temperature, and other functions; Being pulled out of the grass and people to remove the flowers to beautify the environment. You imagine, if it were not for the plant, our living environment?

These days, many wild animals has become the plate of food, fine furniture, gorgeous dress. You think about these wild animals to buy me a life brought a lot of fun, without these lovely animals, our life will become special boring. Rose up in the morning, cant hear the birds chirping and crisp sound, cant see the kitten doggie smile to you, can only see the strange and hard faces, that is bad!

Let us join hands together to create a beautiful home! Let us see the mountains again, flowers everywhere, singing birds, vibrant scene! Let our life more beautiful environment, more interesting. Let the flower and grass fragrance our lives "to protect the environment, everyone duty", believe in the near future will be a new world, we create a beautiful earth. Everyone must do "protect the environment, everyone duty."

现在，片片森林变成了座座工厂。一望无际的草地变成了荒原，清澈的小溪变成了浑浊的臭水沟，美丽的草原变成了贫瘠的沙漠。为什?这究竟是为什么?这是因为人们乱砍乱伐造成的。

地球是人们赖以生存的家园，而人类却在不断的破坏它，被人们砍伐掉的树有着净化空气，减小噪音，调节气温等功能;被人们拔掉的小草和被人们摘掉的鲜花能美化环境。大家想象一下，如果没有这些植物，我们生活的环境会怎样?

如今，许多野生动物成为了人们盘中的美食，精致的家具，华丽的服饰。大家想一想这些野生动物给我买的生活带来了许多的乐趣，如果没有这些可爱的动物，我们的生活就会变得特别无趣。早晨起来，不能听到小鸟叽叽喳喳清脆的叫声，不能看到小猫小狗向你微笑，只能看到一张张陌生而生硬的面孔，那多不好啊!

让大家携起手来，共同创造这美丽的家园吧!让我们重新看到青山绿水，鲜花遍地，百鸟欢歌，生机勃勃的场面吧!让我们的生活的环境更加美好，更加有趣。让鲜花和小草芳香我们的生活“保护环境，人人有责”，相信不久的将来地球将被我们创建成美丽的新天地。大家一定要做到“保护环境，人人有责。”

古代有才学的人往往都是通过有一个好的读书环境所成就的。

在中国科学院大学的讲台上低头念着发言稿。他蓄着胡子他蓄着胡子、一身黑衣、黑布鞋、没穿袜子的老人他就是科学院院士李小文老先生。李小文老先生讲过一句话：我初中的时候，每门功课都是正好及格。能让我这么幸运的，是因为我有一个好的读书环境——老师的孜孜不倦的教诲。

有些人总是说青少年不爱读书，只爱打游戏，恐怕那只是片面的吧！就拿李小文老先生来说，他虽然是没有“规矩”的一个人，但是他要比那些整天说要按规矩做事却屡屡没有实行的人要强得多！

这几年，有人想找回我们青少年该有的读书气。然而我们的作家们却做不到，宁愿要物质的东西，所以他们所写出来的东西肯定也是不切实际的！虽然我的身份只是一名中专生，但是我看过许许多多的书，其中就有几本烂书——《货币战争》、《粮食战争》、《金融战争》等。里面讲的东西都是一些废话，拿《货币战争》来说，就是介绍钱的演变和当今世界的经济发展，再加上作者理解，就成了一本书。我不得不佩服这本书在国际上的影响力，可是里面的内容更是哗众取宠，一点都不讲究历史原则，如《货币战争》一书咬定国际银行家们不只是操纵政治、制造战争，更频频制造金融危机，包括1929年的经济大萧条。这些指控颇为离奇，近乎荒谬。

我不是批判中国的作家，因为我没有资格！但是我只是想让国际、国家所认可的大作家能真真正正的拿出你们该有的真实文学！写出实际的东西，让我们青少年能有一个好的读书环境，千万不要凭空捏造啦。

[高中作文：能让我们有一个好的读书环境吗

高中英语高分作文：春节

I like The Spring Festival. The Spring Festival is the most important festival for the Chinese people and is when all family members get together， just like Christmas in the West. All people living aw

ay from home go back， becoming the busiest time for transportation systems of about half a month from the Spring Festival. Airports， railway stations and long-distance bus stations are crowded with home returnees.

During Spring Festival， the most improtant days are Spring Festival Eve and the first three days.Many customs accompany the Spring Festival.During Spring Festival time， you can see kinds of decorations.you can go to temple fairs and enjoy superb performances of the dances， stilt-walking and amazing acrobatic shows.

so i like it .

An unforgettable experience

My mom used to say that I was born to swim. But the truth is that I didn t know how to swim until the last year of my primary school!

Mom always said that I could swim in the basin when I was only two months old. I was surprised at the amazing fact. If this was true, then why was I afraid of water? I went to swim every summer, but I didn t make a little progress. I was worried and blamed myself several times. When I watched people swimming freely, how I wished I had learnt to swim!

The story of how I learnt to swim is dramatic. One hot summer afternoon, my father and I went to the swimming pool to swim. While my father was changing his clothes, I was roaming along the bank of the pool. Suddenly I heard a voice, Look out! and then came a big noise and beautiful splashes. Just when I was admiring the swimmer s skills, I slipped into the pool! I was so afraid that I shouted at once! But the water kept coming towards me and I drank a lot of it. I was moving upside down and trying to reach the bank. I was struggling very hard to keep my head above the water.

A minute was like a hundred years to me. To my surprise, I was able to keep the style! Just then, my father, saw me and he seemed to be shocked. He then said, Calm down, just wave your arms and legs like this. Right! And I got it! I finally learnt to swim! You can t imagine how happy I was and I wanted to jump for joy!

[一次难忘的经历高中英语作文