高二英语作文演讲稿实用2篇 作文范文(经典20篇)

My Experience to Eat Buffet

Today, after school, my friends asked me to have dinner with them, I felt so happy and went the restaurant with them. Then I found they wanted to eat buffet, I was so happy, because I always wanted to have buffet, I could eat a lot of food. As we paid the money more than we usually spent, so all of us wanted to eat as more as possible, even though we were full enough, we still tried to eat. I would go the wash room many times, so that I could continue to eat. I found eating the buffet should be a happy thing for me, but now it seemed to be a kind of torture, I always told myself to eat more than I could bear, my stomach hurt. The experience to eat buffet lets me realize that I should enjoy the food instead of eat more than I could bear.

今天，下课后，我的邀请我和他们一起吃晚饭，我感到很开心，和他们一起去馆子。我发现朋友们想要吃自助餐，我很开心，因为我总是想要吃自助餐，我能吃很多食物。因为我们比平常多花了钱，所以我们都想要尽可能的多吃，即使我们足够的吃饱，仍然想要去吃。我会上很多次洗手间，这样我就能继续去吃。我发现吃自助餐对我来说应该是一件开心的事，但是却有点像是折磨，我总是告诉自己多吃，超过了承受的范围，胃都受伤了。吃自助餐的经历让我意识到我应该享受食物，而不是吃到超过自己的承受范围。

It is said that Chinese parents are the worlds most responsible parents,

since the kids are born, they start to plan everything for the children, they

choose the school, the kids hobby even the kids partners. Chinese parents want

to raise their kids to be the excellent ones, they put so much hope on the kids.

While it is also said the Chinese kids are the worlds most unhappy kids,

because they live as what the parents tell them, they dont have their own

thinking. www.yyzw.com Both sides reflect Chinese family situation that the

parents give the children too much pressure, the children feel unhappy about

their parents expectation. Indeed, I feel the way, my parents always want me to

be the No.1, they tell me I should get the highest score, I feel tired, I tell

them how I feel, then they begin to realize their expectation has become a

burden for me. parents should give space to their kids.

In the future,I want to be a lawyer.

Because I think a lawyer can help people with their knowledge.

So.what can I do?

First I will try my best to learn law,then I will read lots of law books,next I will pratice law every day,finally I will go to LAW SCHOOL improve my law.

I am sure my dream will come true in the future!

When we meet difficulties, most of us will be feeling distressed, just like

the whole world is down and there is no hope for tomorrow. When we look back

after many years, the difficulties at that time are just small matters, only if

we can hold on to these. Life is wonderful, there is no need to let down on life

when we meet difficulties, like a popular song“How can we see the rainbow

without the storm”. Once I failed on the exam, I feel my world is over, I

couldn’t eat well, I just let my parents down, I was so guilty about it. My

teacher told me that the exam was not a big deal, I should forget it and kept

moving on. Since than, I work hard and trying to forget it. Now when I look back

on the failing exam, I think it is not a big deal.

Today, more and more young people are crazy about western festivals. When western festivals come, they usually go to restaurants or shopping malls to have fun.

如今，越来越多的年轻人都对西方的节日着迷。当西方节日到来的时候，他们常常去餐厅或是商场娱乐。

Why do the young enjoy western festivals so much? Since they worship everything new, and they can’t resist the temptation. In their opinions, western festivals symbolize the fashion, while our Chinese traditional festivals are out of date. No wonder we always feel so boring during our traditional holidays. If we still turn a blind eye to our traditional festivals, our culture and civilization will disappear someday. Accordingly, it is high time for us to pay close attention to our Chinese festivals.

为什么年轻人这么喜爱西方节日呢?大抵是因为他们喜爱新鲜事物，抗拒不了诱惑。在他们看来，西方节日代表着时尚，而中国传统节日则太土了。这也难怪我们也觉得我们的传统节日太过无聊了。如果我们对传统节日漠然置之，那么某天我们的文化文明终会消失。因此，我们该多多关注我们中国自己的节日了。

As a Chinese, we have the obligation to protect our culture and custom. So I think we should celebrate our Chinese festivals by doing some traditional activities. As for western festivals, we needn’t to be too excited about them. We can just send our best wishes to our best friends during those festivals.

作为一名中国人，我们有责任保护自己的文化习俗。所以我认为应当在庆祝中国传统节日时候举办一些传统活动。而对于西方节日，我们不需要太过激动。在这些节日里我们应该只需简单的送上祝福就好。

With the development of science , more and more people are confused that whether it is good or bad to make robort. Are roborts going to take place of human beings.

Every coin has two side. Robort can be good to our society and life. At the same time,it also have some bad effect on our life.In my opinion, the advantages of robort are much more than the disadvantage of roborts.

First, roborts make our life more convenient. We can do many thing that we didnt have the ability to do in the past by using roborts.That makes our life more effective.

Second, roborts can be used in industry produce. Factories can reduce the cost of prodution by using roborts. Roborts do not need to eat and they will not be ill. Thats very good for producing goods.

Third,roborts can save more people when disaster happens. Because they cant feel pain and they can save more people without feeling tired.

In a word, the world is changing .We should also change our thought to accept roborts to become part of our life . That can make our life more colorful.

【参考译文】

随着科技的发展，越来越多的人都感到困惑，是好是坏机器人。是机器人将取代人类。

每个硬币都有两面。机器人可以很好的为我们的社会和生活。同时，它对我们的生活也有不好的影响。在我看来，对机器人的优点远大于缺点的机器人。

首先，机器人使得我们的生活更方便。我们能做的，我们没有做过去用机器人的能力，很多事情，使我们的生活更有效。

其次，机器人可以用于工业生产。工厂可以通过降低生产成本的机器人。机器人不需要吃饭，他们会不会生病。这是非常好的生产商品。

第三，机器人可以挽救更多的人，当灾难发生时。因为他们不能感到痛苦，他们可以拯救更多的人而不觉得累。

总之，世界在变化，我们也应该改变我们的思想，接受机器人成为我们生活的一部分。这可以使我们的生活更加丰富多彩。

I think going to school on foot is good for us. First of all, walking to school is a wonderful way to exercise and it’s good for our health. Next, it’s fun to walk together with friends every day. We can talk about something interesting and know each other better. What’s more, if we walk, our parents won’t have to drive us to school. There will be fewer cars in the city. More walking and less driving help to make our city cleaner. The streets won’t be as crowded as they are now. I hope more and more students will go to school on foot.

我想步行上学对我们有好处。首先，走路上学是一种很好的锻炼方式，对我们的健康有好处。接下来，每天和朋友一起散步是很有趣的。我们可以谈论一些有趣的事情，并且彼此了解。如果我们走了，我们的父母不必开车送我们上学。城市里会有更少的汽车。更多的步行和更少的驾驶有助于使我们的城市更清洁。街上不会像现在一样拥挤。我希望越来越多的学生步行上学。

[高二英语作文walk to school

Being humble and tolerant are believed to be traditional merits in China,

so many people get used to keep silent when they meet unfair situation, because

they think things will be solved as time passes. Actually, it only makes things

become worse, especially to make the criminal situation increase. Recently, a

girl was offended in the high speed train, and most people would choose to

pretend nothing happened, because they did not want to make things become

complicated, but the girl chose to call the police and let her voice out. The

public supported the girl and many people said they met the same situation. It

was time to give some punishment for these bad guys. If we meet unfair

situation, it is necessary to let our voice out and bring the criminal guys to

justice. The society will be much more harmonious.

Every year, June 7th and 8th are the big days for high school students,

because they will take part in the college entrance exam, which is considered

the exam to change their lives. The media give full attention to these students

and many moving incidents have been reported every years. Such as the students

who went to the wrong classroom and in the last few minutes, the policeman

helped them reach the right destination. Parents are also the targets that catch

the medias attention. Many parents are waiting outside while their children are

doing the test. When the students meet trouble during their ways to the

classrooms, people will do what they can do to help them without asking for

return. It is so nice for these people who offer help in this great days. They

are the loveliest people in the world.

It’s normal that we all have our own interests and it’s various from people to people. Some people may be interested in sports and some others in music or literature. In short, it’s good for us to have our own interests or hobbies and it means a lot. For one thing, having some interests can bring us a sense of belonging, for it’s your own thing and no one can carry off from you. For another, interest is our best teacher. If you like something, you have the desire to go deep to it. Last, developing interest is a good way to make friends with who have something in common. You can share and be shared, which is an inspiring process and experience.

The Chong Yang Festival is celebrated on the ninth day of the ninth lunar month, and it is as such known as the Double Ninth Festival.

Climbing mountains: On the Double Ninth Festival, people customarily climb mountains, appreciate chrysanthemum flowers, drink chrysanthemum wine, and eat double-ninth cakes. The Double Ninth Festival is also the Old Men Festival. Old people are especially meant to improve their health by taking part in the activities on the day of the festival.

Origins: The festival began as early as the Warring States Period (475 - 221 BC). According to the yin/yang dichotomy that forms a basis to the Chinese world view, yin represents the elements of darkness and yang represents life and brightness. The number nine is regarded as yang. The ninth day of the ninth month is a double yang day, hence the name Chong Yang Festival. (Chong means repeat in Chinese.) The ninth month also heralds the approach of winter. It is a time when the living need warm clothing, and filial Chinese sons and daughters extended this to make the festival a time for providing winter clothes for their ancestors. The Double Ninth Festival, therefore, also became an occasion to visit the graves of dead family members. Clothes made of paper would then be burnt as offerings.

Family get-togethers: The Double Ninth Festival is also a time for family get-togethers. It is an occasion to remember one‘s ancestors, the sacrifices they made and the hardships they underwent. Often, family outings are organised during which people search to renew their appreciation of nature and to reaffirm their love and concern for family members and close friends.

Life is a struggle. I shall never forget the most striking part of Henry

Wadsworth Longfellow s poem -- A Psalm of Life: "In the worlds blood field of

battle, In the bivouac of life, Be not like dumb, driven cattle! Be a hero in

the strife!"

Ludwig van Beethoven was a typical "hero in the strife". He was not only

one of the greatest composers, but also one of the most persevering men. As a

deaf man, he went on working with his strong will in the last year of his life,

though he was not able to hear his own fine and original music. Another example

of persistence in struggle is Deng Yaping. She once said that her technique came

from continuous training, emphasizing the importance of daily practice to a

player.

As a student, I seem to be in a boat sailiug against the current. I must

make an effort to forge ahead. A little carelessness will result in being driven

back. Indeed, learning is a struggle against idleness and carelessness.

Following the examples of Ludwig van Beethoven and Deng Yaping, I shall take

great pains to urge myself on, moving steadily forward like a heroic boatman in

the rough sea of knowledge.

Youth Day (青年节) in the Peoples Republic of China is on May 4. It was established in December 1949 by the Government Administration Council to commemorate the beginning of the May Fourth Movement in 1919. This day is known as …

May Fourth Movement

Chinese intellectual revolution and sociopolitical reform movement (1917 – 21)。 In 1915 young intellectuals inspired by Chen Duxiu began agitating for the reform and strengthening of Chinese society through acceptance of Western science, democracy, and schools of thought, one objective being to make China strong enough to resist Western imperialism. On May 4, 1919, reformist zeal found focus in a protest by Beijings students against the Versailles Peace Conferences decision to transfer former German concessions in China to Japan. After more than a month of demonstrations, strikes, and boycotts of Japanese goods, the government gave way and refused to sign the peace treaty with Germany. The movement spurred the successful reorganization of the Nationalist Party and gave birth to the Chinese Communist Party. See also Treaty of Versailles.

The night before Christmas, people are bringing a sleeping quietly under the moonlight, the earth, on a quiet, they are waiting, waiting for the arrival of the new year.

See, thats who, a boy. He quietly sat in the window, watching the moon, seemed to be waiting for someone, but he was waiting for whom? Now, who else would come? I was somewhat puzzled by his behavior. But he is still sitting in the window waiting for, but sometimes look back at the clock

Bell rang, which means that the upcoming new year, the boys face appeared in a trace of a smile, suddenly, two reindeer pulling a car from the Moon Ben Lai, the car away from the boys, getting closer, boys excited : Santa came! birth to old Laila! he instinctively ran outside, loudly calling Santa Claus, Santa Claus with a smile, said: My child, what gift you want? My lame foot, and students often do not, and I play, I am very sad.I know you want anything. Santa Claus finished and walked out.

Early morning sun is so bright, the boy blinked his eyes, and found himself in the foot, and no good, he began to not believe in Santa Claus, then, the boy walking out of bed, watching the students the freedom to playing, watching watching, he smiled , laughed so naive, bright, he had never had such a laugh. He gradually realized that Santa Claus gave him the best in the world is a gift - Happy

In my memory, though my hometown is a small village, it is very beautiful. When I was small, I liked to caught fish in the river, the water was so clean that I could see the fish. As I miss my hometown so much, last week, I went back to my hometown, I found the place in my memory was not like what it was. The trees were not that numerous, the roads became bigger, while there was less place for the river, I saw some dead fish in the river, the water was dirty, the river pollution was so serious! I couldn’t believe it, the beautiful hometown was destroyed by the pollution, it is people’s ambition results in it, they chase for the profit at the cost of polluting the environment. I wish people can pay attention to protect the environment, they are saving themselves, too.

在我的记忆中，虽然我的家乡是个小城镇，但是很美丽。当我还小的时候，我喜欢在河里抓鱼，河水是如此的干净以至于我能看到河里的鱼。由于抵挡不住对家乡的思念，上周，我回到了家乡，我发现我记忆中的城市再也不是它原来的样子了。树没以前的多，道路变得宽阔，然而河道却变得窄些了，我看到河中有一些死掉的鱼，河水是如此的脏，河流污染是如此的严重!我无法相信眼前的一切，美丽的家乡被污染给破坏了，人们的贪念导致了这个结果，他们为了追求利益，不惜以牺牲环境为代价。我希望人们能注意保护环境，这也是在保护他们自己。

There is an old saying in China“people need face while the trees need skin”，the meaning is that Chinese people pay special attention on the dignity. Loving face is most people’s behavior, so they like to brag, they enjoy being adored by others. About the face problem, I think we should not take it serious, we are not living for other people, we are living for ourselves. The real self-esteem is from our hearts, not from other people. Chinese people like to brag, they brag about their property, hoping that people will respect him. The funny thing is that only the fake successful people will brag, the real one is silent, they keep working hard, the successful career supports their self-esteem. If we want people to respect us, we should show our reality, be nice to them, never brag about ourselves.

在中国有句老话“人要脸树要皮”，意思是中国人很注重尊严问题。爱面子是大多数人的习惯，他们喜欢吹嘘，享受被人崇拜。关于面子问题，我认为我们不应该把它看得很重，我们不是为别人而活，是为自己而活。真正的自尊是出于我们的内心，不是看别人。中国人喜欢吹牛，他们夸大自己的财产，希望人们尊重他们。有趣的是只有不成功的人才会吹牛，真正成功的人是沉默的，他们努力工作，事业的成功支撑着他们的自尊。如果我们想要别人尊重我们，我们应该展示我们真实的一面，对人友好，不要吹牛。

Since the one child policy carried on, many families had only one kid. As the children growing up, they felt lonely, because they did not have anyone to accompany. They felt so envious when they saw others have siblings. There is no doubt that the one child policy has controlled the population to increase so fast and helped people to improve their life lever. Recently, the government tends to open the second child policy slowly. People hold the different opinion. Some people think that it is good to let the child have siblings, so they will not lonely and can learn the meaning of sharing. Other people don’t want to have one more child because they don’t have enough money. They want to give the best education to the child, so they think one child is enough. Anyway, the second child policy gives people more choice.

由于独生子女政策的执行,许多家庭只有一个孩子。当孩子们长大了,他们感到孤独,因为他们没有人陪。他们看到别人有兄弟姐妹时会感到很羡慕。毫无疑问,独生子女政策控制人口快速增长和帮助人们改善他们的生活水平。最近,政府趋向慢慢开放二孩政策。人们持有不同的意见。一些人认为这是好的,让孩子有兄弟姐妹,这样他们不会孤独,可以学习分享的意义。另外一些人不想要一个孩子,因为他们没有足够的钱。他们想给孩子最好的教育,所以他们认为一个孩子就足够了。无论如何,二胎政策给予人们更多的选择。

Another haze weather, the visibility to hundreds of meters. Both vehicles and pedestrians in feeling, without laughing, also do not have the bird, in such an environment, there are only pungent odor, and dark.

Fog, originally like smoke, such as gauze, like a gauze over the earth. How many men of letters through the ages, it has to, to dump. Now with this beautiful fog fog seems to have a relationship, and made what mistake?

Fog haze, seemingly "blood relationship" with the fog, but it is very different and fog. The mist, is floating in the air water vapor condensation of water droplets or ice crystals. Sometimes fog forecast sunny, sometimes the forecast of rain, fog appears to be chaotic, but as long as to master the characteristics of radiation fog, advection fog, observation, careful analysis, can accurately grasp the fog and sunny, rainy, in order to predict the weather. For the agriculture, transportation, aerospace, navigation is useful. And haze is different, it is made of the dust in the air, sulfuric acid, nitric acid, and organic hydrocarbon particles composed of gray.

又是一个雾霾天气，能见度不足以百米。无论是车辆还是行人都在摸索前行，没有了嬉笑，也无了鸟鸣，在这样的环境里，有的只是刺鼻的气味和满目的昏暗。

雾，原本似轻烟，如薄纱，似纱巾笼罩着大地。古往今来，它曾让多少文人墨客为之陶醉，为之倾倒。而今与这美丽的雾貌似有着一丝关系的雾霾，又犯下了什么滔天大罪?

雾霾，看似与雾有“血缘关系”，但它却和雾截然不同。雾，是由浮游在空中的小水滴或冰晶组成的水汽凝结物。有时雾出预报晴，有时雾出预报雨，似乎混乱不堪，但是只要掌握了辐射雾、平流雾的特征，多方观察，仔细分析，就能准确地抓住雾与天晴、落雨的规律，以便预测天气。这对于农业、交通、航天、航海都有用处。 而雾霾就不一样了，它是由空气中的灰尘、硫酸、硝酸、有机碳氢化合物等粒子所组成的小灰粒。

News, used to be the most dont like to see it. Since the childhood has been like watching cartoon and foam. Now over the years is already 15 years old girl, the adults always said I dont understand, I also often because of his bad temper, or not doing things. "Knowledge too little" finally let me find the dawn, from then on began to like the news.

Compared to the past, only reading does make me understand a lot of knowledge, also became the academic leaders, but its a downright failure in life. While reading can also know society, but after all the writers praise is the truth in life, and that I love watching cartoons, and eulogize justice and goodness, degeneration and reject evil. In such an environment, my heart has been living in the white cloud, so that as the growth of the age, heart is still very naive. But I will contact with the reality of society, the essence of this society is not absolutely fair, not cheated can only let oneself become strong. But when he does not know this, just complain, disposition also become bad. Fortunately, when I was going to despair, when the news took me, no let me into the who also do not know to have bottomless pit.

Know only after watching the news of the worlds largest and I small. The content of the news is very rich, I also have different preferences, from country to country, down to between people. I see from a real case: "some of the good qualities: honesty, integrity, good Samaritan, wisdom... how important it is for this society!

新闻，以前是最不喜欢看的。从小到大一直喜看动画片和泡沫剧。现今过了年已是十五岁的大姑娘了，大人们常说我不懂事，我也常因自己脾气不好，或是不会处理事情而烦恼。一句“见识太少”终于让我找到了曙光，从此便开始喜欢上新闻。

对比以往，只读书确实让我懂了不少知识，也成为了学业上的佼佼者，但在生活上却是一个失败透顶的人。虽然读书也可以认识社会，但毕竟作家们歌颂的都是生活中的真善美，以及那我爱看的动画片，也是讴歌正义和善良，贬低和排斥邪恶势力。在这样的环境影响下，我的心一直生活在洁白无瑕的云端，以至于随着年龄的增长，心确仍然很幼稚。但我终究要与现实的社会接触，这个社会的本质就是没有绝对的公平，要想不吃亏就只能让自己成为强者。可惜当初的自己并不懂得这点，只是一味的抱怨，性格也变得恶劣。幸运的是，当我快要绝望的时候，新闻拉住了我，没有让我滑向那个谁也不知道有没有底的深渊。

在看了新闻后才知道世界之大与我之渺小。新闻的内容很丰富，我的喜好也不尽相同，上到国家与国家之间，下到人与人之间。我从一个个真实的例子中看出：“人的一些美好的品质：诚信、正直、见义勇为、智慧……对于这个社会是多么重要!

Hello! My dear friends! First, let me introduce myself to you. My name is Wu Dongxiang and my friend usually call me Kina. Im a 20-year-old girl who comes from Guilin Guangxi China. It’s known to all,Guilin is a beautiful city in China. Have you ever been to Guilin? If the answer is no, dont warry about it. Please come on, I am very glad to be you guide .Welcome to our city!

In my college, I majored in Tourism and English. I want to be a tour guide when I graduate from my college. Because Im a lovely girl and I like to travel to different places. I have about ten courses to learn this term. What about you?

I have a lot of hobbies. In my spare time, I often go sightseeing, play badminton and go out running. Sometimes go shopping or stay at home. I also like reading and planting flowers. Do you have the same hobby with me?If you want to talk with me, please send me an E-mail.My E -mail :kinakl920@126.I m looking forward to seeing you!

We are living in a globalized world and the cross-cultural communications are increasing nowadays. In other words， we have never been so closely connected with each other in the human histories. As a philosopher has pointed out， nobody is an isolated island. If we want to have a bright future， we need more cooperation for the development. Therefore， team spirit is very important. It is an bility that people can understand each other and cooperate with each other for the successful completion of some important tasks.We need such kind of ability in particular during the globalization for several reasons.

我们生活在全球化的世界中，跨文化交流越来越常见。换句话说，在人类历史中，我们还没有如此紧密地链接在一起。就如一位哲学家所说的，没有人与外界孤立。如果我们想拥有广阔的未来，我们需要合作。所以，团队的精神非常重要。为了重大目标的完成，我们需要互相协作。在全球化的背景下，我们需要某种特殊的能力。

First of all， team spirit offers us a platform where we can operate our collective talent to work out thebest. Only when we work effectively together can we have the best chance to get the success. Taking the 2008 Beijing Olympics for example， I think the success of the event first goes to the superb team spirit of the organizers and millions of volunteers.So many people work hard and cooperate well for the single aim and the solitary goal： an exceptional Olympics for the whole world. A lot of student volunteers in Beijing are committed and work tirelessly during the hot summer. History has witnessed their brilliant teamwork and valuable contributions.What is more，team spirit is quite useful for personal career.

首先，团队精神提供了我们一个平台，这个平台能够集聚所有人的力量。只有我们努力协作，我们才有可能成功。就拿2008年北京奥运会为例，我认为事件的成功来源于上百万志愿者的协作和团队精神。所以，许多人为了单一目标而协作努力：为全世界奉献了精彩的奥运会。在炎热的夏天，许多志愿者努力工作。历史见证了他们的团队合作，以及卓越贡献。更重要的是，团队精神对于个人的发展也是有意义的。

As young students，we must learn the core and sharpen our skills in the team.If you work in a company，most of the time you have to finish or design a huge project with your colleagues. Each person can contribute their wisdom to the completion of the task. You cannot do it so well single-handedly. When we watchthe Olympic Games on TV， we are so amazed by the excellent performances of the players. If they want to win the gold medals， they must compete as one person and exercise their own part well for the whole success.So we can say the team spirit is the secret of success.

作为一名年轻学生，我们必须学会在团队中锻炼自己的能力。如果你在一家公司工作，那么绝大部分的时间你都必须与其他同事完成重要的设计任务。每个人都为这一目标献出了自己的智慧。你不可能单枪匹马。当我在电视机前观看奥运会比赛时，我们对运动员的出色表现而惊叹不已。如果他们想夺取金牌，为了目标，他们必须通力合作。所以，团队精神是成功的秘诀。

Finally，team spirit is the symbol of national power and strength. As we all know，the Chinese delegationhas won the most medals during the 2008 Olympics and all Chinese people are so proud of our country. Another example is the touching power of the team spirit in the Sichuan earthquake. We were moved by the perseverance and persistence of the rescue workers， who were eager to help their compatriots.

最后，团队精神是国家富强和力量的象征。众所周知，中国代表团在2008年奥运会上奖牌总数第一，中国人无不为此而骄傲。另一个体现团队精神的例子是四川地震。我们被救援人员的坚韧和顽强品质所感染，他们不惜生命的代价抢救伤员。

In conclusion， team spirit is an important ability and skill in the 21th century because we are all facedwith the globalization and the question of how to live better. Therefore， we must learn to work well in the team and let the team spirit guide us to success.

总结，团队精神是21世纪最重要的能力和技能，因为我们都处在全球化的大背景之下，我们的问题时如何生活得更好。所以，我们必须通力协作，只有团队精神才能让我们取得成功。