高一英语作文自我介绍范文【汇编20篇】

In the past two years, my parents took me to travel to many places, including big cities, small towns, famous mountians and so on. Therefore, I like traveling and I hope I can visit to many more places. Since then, I hope I can be a tour guide in the future, so I can travel to many tourist attractions. Besides, I can meet various people and I think communicating with different people is interesting, wchich can broaden my field of vision. I hope they can share their life stories with me so that I can know the general life of a place. I know it would be a challenging job, but I believe I can do well in my job.

[高一英语作文我的梦想

There was a man who had four sons. He wanted his sons to learn to not judge

things too quickly. So he sent them each on a quest，in turn，to go and look at a

pear tree that was a great distance away.

The first son went in the winter，the second in the spring，the third in

summer，and the youngest son in the fall.

When they had all gone and come back，he called them together to describe

what they had seen.

The first son said that the tree was ugly，bent，and twisted. The second son

said no - it was covered with green buds and full of promise.

The third son disagreed，he said it was laden with blossoms that smelled so

sweet and looked so beautiful，it was the most graceful thing he had ever

seen.

The last son disagreed with all of them;he said it was ripe and drooping

with fruit，full of life and fulfillment.

The man then explained to his sons that they were all right，because they

had each seen but one season in the tree‘s life. He told them that you cannot

judge a tree，or a person，by only one season，and that the essence of who they are

- and the pleasure，joy，and love that come from that life - can only be measured

at the end，when all the seasons are up.

If you give up when it‘s winter，you will miss the promise of your

spring，the beauty of your summer，fulfillment of your fall. Don’t let the pain of

one season destroy the joy of all the rest.

When it comes to honesty, quite a lot of people believe it is essential to

a person’s character and success.

They base their idea on the following reasons: on one hand, successful

business owes much to mutual trust; on another hand, great people in history

such as Abraham Lincoln andGeorge Washington set us good examples of being

honest, they are great because they are honest.

Their reasons run as following: to begin with, cheating on exams is

becoming more and more popular; in addition, some singers and movie stars cheat

on taxes; last but not the least, if you are not careful enough, you’ll buy some

defective goods and fake products.

It is high time we emphasized and encouraged honesty. We can take effective

measures to restore it.

For example, kids should be taught to tell truth, strict rules and

regulations should be carried out to stop cheatings on exams and taxes, etc.

May Day that day, I meet my brother and younger brother to play in the riverside wetland park. Im very glad to get off when Im singing while jumping down.

So many people in the park! Some fly a kite, some play in the water, and watch the scenery. My favorite is the reeds. The green reeds sway in the wind, as if to welcome us; There were a few wild duck in the reeds, swam to busy to catch fish and shrimp eat; Little dragonfly fly tired, fell on the reeds, pointed to rest!

The park is really fun, we had a happy May Day.

五一节这天，我相约哥哥和弟弟去滨河湿地公园玩。我非常高兴，下车时我是一边哼着歌一边蹦下去的。

公园里的人真多哪!有的放风筝、有的在水边玩耍、还有的观赏风景。我最喜欢的就是芦苇荡。绿油油的芦苇荡随风摇摆，好像是在欢迎我们的到来;还有几只野鸭在芦苇丛中游来游去，正忙着捉鱼虾吃;小蜻蜓飞累了，落在芦苇尖上休息呢!

公园里可真好玩，我们过了个快乐的五一节。

We are always trying to find the way to success, which stands for power,

pride and glory. There have been strings of stories of success I was told since

I was a child. From then on, I have been fascinated with being successful.

Whatsuccess? Different people have different opinions towards this

question. To start with, some people, such as accountants, workers and so on,

are longing for being rich, which allows them buy what they want, and enjoy

luxury. They treat it as success. Furthermore, some contestants, such as boxers,

are always trying their best to defeat their rivals for success. And once they

win, they confirm that they are stronger than others. The last but not the

least, there are some other people who enjoy helping others. As a good saying

goes, the roses in her hand, the flavor in mine. With helping others, we can

also feel satisfactory.

As far as I am concerned, life is short, and we must achieve something

during our life. So I regard striving and working hard important. When comes to

we reap what we sow, it’s the time of success.

导语：你还记得你生日那天发生了什么事了吗?下面是yuwenmi小编为大家整理了优秀英语作文，欢迎阅读与借鉴，谢谢!

Yesterday was my birthday, so some of my classmates sent me presents. Mother prepared a tea party for me. I invited all of them to come and take part in it.The tea party began at half past six. There were cold drinks and refreshments. We ate, talked and laughed. We felt that we were the happiest men in the world.Time passed quickly. In a twinkling, the clock on the wall struck nine. We could not but say “Good-bye” to one another

【参考译文】

昨天是我的生日，所以，有几位我的同班同学送了我礼品。母亲给我准备一个茶会。我邀请他们都前来参加。茶会下午六点半开始。有冷饮和点心。我们又吃又谈又笑。我们觉得是世界上最快乐的人。时间过得很快。转瞬间，墙上的钟敲九点了。我们不得不互道再见。

The Great Wall of China, also known in China as the Great Wall of 10,000, is an ancient Chinese fortification built from the end of the 14th century until the beginning of the 17th century, during the Ming Dynasty, in order to protect China from raids by the Mongols and Turkic tribes. It was preceded by several walls built since the 3rd century BC against the raids of nomadic tribes coming from areas now in modern day Mongolia and Manchuria.The Wall stretches over a formidable 6,350 km (3,946 miles), from Shanhai Pass on the Bohai Gulf in the east, at the limit between China proper and Manchuria, to Lop Nur in the southeastern portion of Xinjiang Uygur Autonomous Region.

中国的长城，在中国也被称为长城的10000，是中国古代的一个设防建造的第十四世纪末直到第十七世纪初，在明代，为了由蒙古人和突厥部落保护中国免受袭击。这是之前几个墙自公元前第三世纪的游牧部落来自地区现在的蒙古和满洲里的突袭建。壁延伸超过一个艰巨的6350公里(3946英里)，从东部渤海湾关山海，在中国和满洲里之间的界限，以罗布泊在新疆维吾尔族自治区东南部的部分。

The first major wall was built during the reign of the First Emperor, the main emperor of the short-lived Qin dynasty. This wall was not constructed as a single endeavor, but rather was created by the joining of several regional walls built by the Warring States. It was located much further north than the current Great Wall, and very little remains of it. A defensive wall on the northern border was built and maintained by several dynasties at different times in Chinese history. The Great Wall that can still be seen today was built during the Ming Dynasty, on a much larger scale and with longer lasting materials (solid stone used for the sides and the top of the Wall) than any wall that had been built before. The primary purpose of the wall was not to keep out people, who could scale the wall, but to insure that semi-nomadic people on the outside of the wall could not cross with their horses or return easily with stolen property.

第一主壁的第一个皇帝统治时期建造的，短命的秦朝的主要皇帝。这堵墙没有建造作为一个单一的努力，而是由几个区域的墙而建的战国加入了。这是位于更远的北部比目前的长城，很少遗骸它。在北部边境修建了防御城墙，在中国历史上不同时期几代保持。长城，今天依然可以看到建于明朝，一个更大的规模和较长的持久材料(固体石用于两侧和顶部的墙)比任何墙壁已建成之前。墙的主要目的是不让出来的人，谁能翻墙，但要保证在墙体的外侧半游牧民族，不能交叉的马匹或返回轻松赃物。

My hometown is suizhou, there is very beautiful in a city park and the south of baiyun shennong park, is recreation visit places. Winding road, and thick vegetation and Xuan mesh to deprive a person bonsai, let a person with nature.

To realize fall, lake feeling, the hushan is right choice. The hushan LiuAn supple, boasts beautiful scenery, jade stroll, relaxed.

In the evening, jiefang road, LongTai pedestrian street lights, shopping shopping two not mistake; Pearl plaza, railway station plaza, leisure, sports and tide of stream of people, boisterous, might as well go see suizhou of mass cultural life.

我的家乡随州,非常漂亮的城市公园和南白云神农公园,娱乐访问的地方。蜿蜒的道路,和茂密的植被和宣网剥夺一个人盆景,让人与自然。

意识到秋天,湖山湖的感觉,是正确的选择。拥有美丽的风景,湖山LiuAn柔软玉散步,放松。

晚上,解放路,LongTai步行街灯光,购物购物两不误,明珠广场、火车站广场、休闲、运动和潮汐流的人,热闹的,不妨去看看随州的大众文化生活。

Should belong to me, my weekend is my time to rest over the weekend, the weekend is my time of entertainment, but, my mother told me the assignment of the weekend very desolate, let my weekend was not happy.

Have a weekend, because mom going to my grandmas on Saturday, didnt come back to the evening, I will take mom is not in time, to play, after about one hour, Im tired will go to the teacher assigned homework, after 50 minutes, Ill finish the homework by the teacher, I have a look at the time, is going to eat lunch, but I havent written mother for my homework, I think, was watching TV, look for an hour, I will go for lunch, I ate two bowls of rice, will go to take a nap, wake up all three 29 minutes, I write the mother to my homework quickly, just finished, mother just came back, I show my mother a job quickly, mother looked, said good, I this finally passed.

Sometimes my weekend is happy, sometimes sad, I hope all the students have their own weekend, rather than managed by others.

我的周末应该属于我的，周末是我的休息时间，周末还是我的娱乐时间的，可是，妈妈布置的作业让我的周末变得很荒凉，让我的周末很不快乐。

有一次周末，因为星期六妈妈去外婆家了，要傍晚才回来，我就趁妈妈不在的时间，去玩了，大约过了一二个小时，我累了就去把老师布置的作业写了，过了五十分钟，我就写完老师的作业了，我一看时间，马上就要吃午饭了，可我还没写成妈妈布置给我的作业呢，我想着想着，就看起了电视，看了一个小时，我就去吃午饭了，我吃了二碗饭，就要去睡午觉了，一觉醒来都三点二十九分钟了，我赶快写妈妈布置给我的作业了，刚写完，妈妈刚好回来了，我赶快拿作业给我妈妈看，妈妈看了看，说好的，我这一关总算通过了。

我的周末有时候是快乐的，有时候是悲伤的，我希望各个同学都有自己的周末，而不是由别人管理的。

My dream home is an old castle in France. There are at least thirty rooms in it. It has three floors.

There is a big sitting room and dining room on the ground floor. It must have a very large window on the ground floor. I can look out of the window.

There are six bedrooms on the first floor. Maybe my good friends can live in the rooms. There is a bathroom in each bedroom. I would like my friends to have a shower or a bath in my castle.

There is a special room on the second floor. I can put all my clothes in the room. The room must be next to my bedroom. There is a big bed in my own bedroom. It is two meters long, because I love to sleep. There is a bathroom in my bedroom.

There is a very large garden outside my house. I can have breakfast in this garden. I can have parties in it. The garden is like a park. There are many kinds of flowers and trees in it. In the centre of the garden, there is a wooden swing. I can play on it.

This is my dream home. It is a nice dream.

My grandparents believed you were either honest or you werent. There was

no in between. They had a simple motto hanging on their living-room wall: "Life

is like a field of newly fallen snow; where I choose to walk every step will

show. "They didnt have to talk about it--they demonstratedthe motto by the way

they lived. They understood instinctively that integrity means having a personal

standard of morality and ethics that does not sell out to expediency and that is

not relative to the situation at hand. Integrity is an inner standard for

judging your behavior.Unfortunately, integrity is in short supply today--and

getting scarcer. But it is the real bottom line in every area of society.And it

is something we must demand of ourselves.

A good test for this value is to look at what I call the Integrity Trial,

which consists of three key principles: Stand firmly for your convictions in the

face of personal pressure.

When you know youre right, you cant back down. Always give others credit

that is rightfully theirs. Dont be afraid of those who might have a better idea

or who might even be smarter than you are. Be honest and open about who you

really are. People who lack genuine core values rely on external factors--their

looks or status---in order to feel good about themselves. Inevitably they will

do everything they can to preserve this facade,but they will do very little to

develop their inner value and personal growth.

So be yourself. Dont engage in a personal cover-up of areas that are

unpleasing in your life. When its tough, do it tough. In other words, face

reality and be adult in your responses to lifes challenges.

Self-respect and a clear conscience are powerful components of integrity

and are the basis for enriching your relationships with others.

Integrity means you do what you do because its right and not just

fashionable or politically correct. A life of principle, of not succumbing to

the seductive sirens of an easy morality,will always win the day. My

grandparents taught me that.

Should students make friends on line ?Some people say yes .The internet helps make many friends .Chatting on line ,students can more freely express their feelings and opinions ,and even get help with their foreign language studies .

Others ,however, think students should not .They say making friends on line is a waste of time ,which should be spent more meaningfully on study .Besides ,some students get cheated on line.

It is my opinion that students should place their study ,health and safety before other things .As for friendship ,we can readily find it in our classmates and other people around us.

When I was very small, I lived in my hometown. My grandparents raised two

dogs, and I liked them very much. I watched them grow up from the little animals

to the big dogs. Every time when I leaved home for school, they would follow me

for some distance. When I walked a little far away, they would turn home. When I

went home after school, they would wait for me in the door and swayed their

tails. I knew they were welcoming me home. They were like my family members and

I learned that animals are part of our nature. We should protect them. We can

create a harmonious society.

Different people have different hobbies.For example,someone likes reading,someone likes swimming and someone likes collecting and so on.

I used to read books and draw pictures because by reading books I could learn many funny things.But now I dont like it.I can only learn from books.I couldnt get knowledge from others.I need a change.Traveling is my favorite hobby now.But I cant go traveling a lot.I can visit many different places of interest by traveling.I can learn a lot about people,places and history.Its very interesting.What is your hobby?Lets share each other!

I have many good friends.They all have their hobbies.Ann studies very hard.So her hobby is book reading.Tony loves labour,and his hobby is gardening.He usually plants flowers and trees in his yard.Judy is a quiet girl.She likes knitting.She always knits some sweaters for her dolls.We have different hobbies,but we are good friends.

I love traveling.I have great fun in traveling.

不同人有不同爱好。例如，有人喜欢读书，有人喜欢游泳，还有人喜欢收藏等等。

我过去喜欢读书和画画，因为从书中我能了解许多有趣的事。但我现在不喜欢了。我只能从书中得到知识，而不能从其他方面获得知识。我需要改变一下。旅行是我现在最喜欢的爱好，但我不能经常去旅行。通过旅行我能参观许多名胜古迹。我还可以学到许多关于人文、地理、历史方面的事。那真是非常有趣。你的爱好是什么?让我们一起分享!

我有许多好朋友。他们都有他们的爱好。Ann学习很努力，因此她爱好读书。Tony爱劳动，他爱好园艺，他总是在他的院子里植树种花。Judy是一个文静的女孩，她喜欢编织，她总是给她的玩具娃娃织毛衣。我们爱好不同，但我们是好朋友。

我爱旅行，我从旅行中获得了极大乐趣。

A teacher I respect most is my teacher in charge teacher. She is strict with us, like mother love us.

The teacher has long hair, she has a kind heart, friendly. On one occasion, I write the word crooked, very ugly. Teacher zhang left me, let me write again. So far has been asking me to write neatly and specification, the teacher didnt let me go home. I was not the taste, thought: is it not a few words? Write write bad is not the same? Why so again and again to write, just write the word specification, its a waste of time. At home, I told mom, to leave the cause of the mother said to me: "words are the facade, from writing can see a persons personality.

The teacher strict requirement is right, is to be responsible for you, you write good word is their own, no one can steal. "Listened to my mothers words, I understand the purpose of the teacher, makes me more respect the teacher.

我最尊敬的一位老师是我的班主任老师。她像妈妈一样严格要求我们，疼爱我们。

老师留着一头长发，她心地善良，和蔼可亲。有一次，我写的字歪歪扭扭的，非常难看。张老师把我留了下来，让我重新写。一直让我把字写工整、规范为止，老师才让我回家。我当时很不是滋味，心想：不就是几个字吗 ?写好写坏不都是一样吗?干吗这么一遍又一遍地写，硬是把字写规范，真是浪费时间。回到家，我把挨留的原因告诉了妈妈，妈妈对我说：“字是门面，从写字上能看出一个人的性格。

老师严格要求是对的，是对你负责，你写一手好字是自己的，谁也盗不去。”听了妈妈的一席话，我明白了老师的用意，使我更加敬佩老师了。

我的梦想是出国旅行并且环游世界一周，因为世界是如此的大，充满着许许多多新奇的事物。

My dream is to travel and travel around the world for a week, because the world is so big, full of a lot of new things.

我想出国是因为我想认识更多地方、更多美食以及更多朋友，而且我很想又坐飞机，虽然之前去英语村有模拟搭飞机的程序，但是还是想要那种如同老鹰般翱翔在天空的感受。但是，要出国需要很多的费用， 所以，我现在决定开始不乱花钱了，零用也要存起来，长大以后，我更要努力赚钱，然后带着全家人一起出国。

I want to go abroad because I wanted to know more, more and more Food friend, and I want to fly, although before going to the English village is simulated by plane, but still want that kind of like an eagle soaring in the sky feel. However, the cost of going abroad to a lot, so I decided to start, do not spend money now, pocket to keep up, grow up, I want to work hard to make money, and then with the whole family together to go abroad.

有言道“读万卷书不如行万里路。”到世界各地开阔视野，增长知识，我一定要朝着这个目标努力前进。

Its been said "read 10000 books is." To broaden our horizons, increase of knowledge around the world, I must work hard towards this goal.

A pair of brothers received a letter which gave him a million pounds.

It turned out that the brothers made a bet, bet if a poor, honest man fall from the sky received one million pounds, he will have what results?

Brother that he would starve to death because he could not prove the money was his own, someone else will be suspected, even banks will not allow him to save money.

Brother believes that he will very well, so they brothers will check for one million pounds lent the poor, and abroad spent thirty days.

I did not expect at this time, people who suddenly rich riches rare, hard to actually draw him from the free food, buy clothes, to free accommodation, one by one like a beggar, like to please him, and continue to improve his social position, until the outdoor addition to the king on top of Duke!

Not only that, he got a good wife and thirty thousand pounds of bank interest.Since then lived very, very happy life.

See here, I am so envious of the "lucky" the hero, but I want to: The reason why people please him, not because it was too much focus on money yet?

Worship of money is shameful, something for nothing we should not!

Money is not everything in the world there are many more important things than money.

Article on the "money is everything" "Money is omnipotent," the idea for a satire and expose the ugly face of capitalist society and the rule of darkness.

参考译文：

一对兄弟收到了一封信,给了他一百万英镑。

原来兄弟打赌,赌如果一个贫穷、诚实的人从天空坠落收到一百万英镑,他会有什么结果?

哥哥,他会饿死,因为他无法证明这些钱是他自己的,别人会怀疑,甚至银行不会允许他省钱。

哥哥认为他会很好,所以他们兄弟将一百万英镑的支票借给穷人,和国外花了三十天。

我没有想到在这个时候,突然间丰富的财富的人罕见,很难真正吸引他从免费食物,买衣服,到免费住宿,一个个像乞丐一样,喜欢取悦他,并不断提高他的社会地位,直到室外除了国王公爵之上!

不仅如此,他有一个好妻子和三万英镑的银行利息。自那以后生活非常幸福的生活。

看到这儿,我很羡慕“幸运”的主人公,但我想:为什么人们请他,不是因为它太注重钱了吗?

敬拜的钱是可耻的,不劳而获我们不应该!

钱不是万能的世界上有许多比金钱更重要的东西。

文章对“金钱就是一切”“金钱是万能的,“讽刺和揭露资本主义社会的丑恶嘴脸,和黑暗的统治。

A sunny Sunday， usually every day and sleep until the sun father-drying

bottoms climb to get up early and get up in red， wake up my mother。 Drowsily

mother slowly said: "Today what the section， from Why so early?" Little Red said

excitedly: "Mom， do not install confused， you said that today took me to the

park!"

Came to park， mother and son were two beautiful scenery attract: kids， some

kite-flying， and some shooting while playing ball red bumper cars， while also

playing slippery slides， played with enjoying themselves， was sweating

profusely。

Little Red hobbled down to holding mothers hand while walking while

singing。 Suddenly， a banana peel， a red block of the avenue， little red slip

banana skin reminded once again to see if the banana peel to her protest， then

do not fight a gas， the foot kicked the banana peel。 Mom saw， as if aware of her

mind like， and did not criticize her， she just pulled the banana skin side next

to her while saying with great earnestness: "I know you have been slipping on

banana peel， very angry， but you should From the perspective of others think

that if you somehow accidentally stepped on a banana peel how to do red listened

to， very ashamed， the banana peel thrown into the bin。

Little Red looked at the move， my mother smiled。

Yes ah! Would it not everyone should be protected?

In my mind, there are many people who is worth I admire, but there is a person of character, and make my lifelong benefit - cleaner.

Remember in the cold morning, on my way to school, vaguely see a person, the man with a broom in sweeping the floor. Walk into a look, turned out to be cleaner. Just then, I thought: such a cold day, the cleaner in sweeping the floor, isnt it cold? Saw her wearing a uniform, with masks, left hand holding a broom, her right hand to the dustpan, thorn face brings her ears are red.

Her left hand holding a dustpan, right hand holding a broom, and patience and carefully. She sweep up the stolen goods, and sweep up the piece of stolen goods, such action also dont know how to repeat again. Look, her hands how tacit understanding! If dustpan full, carefully pour into the truck, afraid to drive just sweep clean and dirty. Pour out, and then began to sweep. I see from her eyes, she is how I hope you will no longer throw stolen goods, keep the road clean. At this time, the wind is blowing, blow the roads and dirty. The cleaners helplessly say: "alas, true cant, I need to scan again." And then, call forth spirit said: "it doesnt matter, I will be able to finish cleaning!" Then Saul again, and this time, she first sweep rubbish, and dustpan sweep the garbage into the dustpan. Full use broom mouth, dont let the junk, and into the truck. I think: it can save more time, sweep the garbage out. Thinking about thinking, cleaner to sweep out the rubbish. I dont went into his YouZi ceasing, laughingly said: "thats very kind of you! I want to learn from you that silently dedication spirit!" Cleaners listened, smiling eyes.

This is the person I admire most. One day, a person in silently every day. Is the persons character is not worth me to learn?

在我的脑海里，有许多人值得我佩服，但有一个人的品格，使我终生受益――清洁工。

记得在寒冷的早晨，在上学的路上，隐隐约约看到一个人，那个人拿着扫帚在扫地。走进一看，原来是清洁工。就在这时候，我想：这么冷的天，清洁工在扫地，难道不冷吗?只见她穿着制服，带着口罩，左手拿着扫帚，右手拿着簸箕，刺脸的风把她的耳朵都吹红了。

她左手拿着簸箕，右手拿着扫帚，认真而又耐心的扫着。只见她把这片赃物扫起来，又把那片赃物扫起来，这样的动作也不知道要重复多少遍。再瞧，她的双手配合的多么默契呀!要是簸箕满了，就小心翼翼地倒进垃圾车里，生怕把刚刚扫赶净的地又弄脏了。倒完了，就又开始扫了。我从她的眼睛里看到，她是多么希望大家不再乱扔赃物，保持道路昔日的干净。这时，大风吹来，把道路又吹脏了。这位清洁工无奈的说：“唉，真没办法，我又要重新扫了。”接着，又振起精神说：“没关系，我一定能扫完的!”说完又开始扫了，这回，她先把垃圾扫在了一起，又拿簸箕把垃圾扫进簸箕里。满了就用扫帚挡住口，不让垃圾掉下来，再到进垃圾车里。我想：这样能够节约多点时间，把垃圾扫完。想着想着，清洁工就把这些垃圾扫完了。我不犹自住地走进他，笑盈盈地说：“您真好!我要向您学习那种默默奉献的精神!”清洁工听了，眼睛笑眯眯的。

这就是我最敬佩的人。一个每天起早贪黑、默默奉献的一个人。难道这个人的品格不值得我去学习吗?

Many years ago, when the first computer came into being, many people

predicted the age of computer has come. Now only two decades passed, here comes

the new age of cellphone. Lets look at how people depend on the phone. They use

cellphone to work and to communicate with families and friends. With the

development of technology, online payment is popular and people just need a

cellphone to pay all the bills. How convenient it is. We are lucky to live in

the age of technology. But at the same time, if we dont control ourselves, we

will lose in the technology world, such as some children overuse cellphone and

learn nothing at all.

Dear Edior,

I’m a student of Huayang No. 1 Middle School. In front of our school gate is a street, on both sides of which are many shops and restaurants. Every day during rush hour, especially at noon, stalls selling everyday goods and food appear on the street, which makes it terriblycrowded. First, cars and passersby have difficulty in passing through the street. Thus it makes it dangerous for the students to go in or out of school. Secondly, the street is made dirty with so many plastic bags and waste water everywhere.

A school, in my opinion, should be a place with clean and quiet surroundings. So I do hope some measures should be taken to improve the situation.

Yours sincerely Li Hua