初中英语作文30篇最新20篇

童丹阳： Love may not be great, but we can find love everywhere, even in some small things, if we use our heart to feel it.

丁清之：Even though we can’t see each other, but we can feel each other. That’s love.

Jimmy: Love is more like friendship taken to a further level. It is a companionship that can last through hardships, joys, and even dull and boring times, with passion and comradeship.

林鹏： Love is the most valuable thing in the world that nothing else can surpass.

方驰：Love is when you miss somebody, like your mother or father and when you return the indescribable feeling that flls your heart you feel happy, you feel this thing is the most important in your life.

王潜：love is when you are ill, someone will look after you. Love is when you fall down, someone will lift you.

Now as the coming of June, which means the summer holiday is drawing near.

I am so excited about the holiday. After studying for four months, finally I can

take a break. I have made up some plans. First, I want to go back to my

hometown. I miss the food and my friends. I also like the clean water and the

blue sky. It is such a great time for me to stay in hometown. Second, I will

travel with my parents. They will take me to the different places and let me

look at the world. I gain a lot of knowledge and broaden my vision. I am so

looking forward to my holiday.

英语作文怎么写？写不好作文是很多初中生存在的问题。而作文是初中英语考试的重要内容，怎么才能写一篇高分英语作文呢？下面是星火小编给大家总结的一些英语写作经验，大家可以看看。

要写好作文，首先要写好开头，怎么写开头呢？下面是一些不同的开头表达方式，大家可以参考看看。

“开门见山”式开头

即要用简单明了的语言引出文章的话题，使人一开始就能了解文章要说明的内容。

①.对于叙事类的文章，可以在开头把人物、时间、事件和环境交代清楚。

如“A Trip to Huangshan(黄山之旅)”的开头就可以是：Last month, my family went to Huangshan by train. It took us ten hours to get there. What a long and tiring journey! We were tired but the beautiful scenery excited us.

②.对于论述性的文章，可以在开头处先阐明自己的观点，接着展开进一步的论述。

如“The Time and the Money(时间和金钱)”的开头可以是：Most people say that money is more important than time. But I don’t think so. First, when money is used up, you can earn it back，but?

这样就将自己想要谈到的话题表达清楚了，接下来再继续论述就可以了。

回忆性开头

在描述事件或游记类的文章中，采用回忆性的开头往往更能吸引人的眼球。这种类型的开头中通常含有描述自己心情或情绪的词汇，如never forget (永远无法忘记), remember (记得)，unforgettable (难以忘怀的), exciting(令人激动的)，surprising(令人惊讶的), sad (难过的)……如“A Trip to Huangshan(黄山之旅)”的开头还可以这样写：I will never forget my first trip to Huangshan. 或It was really an unforgettable experience I had.

疑问性开头

在叙事类或论述性的文章中，都可采用疑问型开头，这样既可以吸引阅卷者的注意又容易抓住中心。

如“Planting Trees(种树)”的开头可以是：Have you ever planted trees? Don’t you think planting trees is ……

再如“Traveling Abroad(出国之旅)”的开头可以是：If you have an opportunity to travel abroad, why not consider Singapore?

倒叙式开头

在有的文章，特别是叙事类的文章中，可以采用倒叙的写作手法，先写出事件的结果，再陈述过程。

如“Catching Thieves (捉贼)”的开头可以这样写：I lay in bed in the hospital. I smiled at my friends even though my legs hurt. Do you want to know what happened to me? Let me tell you. It’s a … story.

倒叙式的写法有一些难写，并且在写作过程中很有可能出现时态混淆的问题，在此建议大家在写作过程中尽量不要倒叙式的方式，避免犯错。

开了一个好头之后，当然要开始写文章的主体部分了，那就是文章的正文。

文章的正文应以文章的开头为线索，具体地叙述、说明或论证文章的主题。文章不论长短，每个段落都必须为主题服务。像说明文和议论文这一类的文章，一个主题还常分成几个小主题，每个小主题要用一个段落处理，另起一段时，应是一层新的意思。每一段的开头，要放一个表示段落小主题的主题句，这样可使文章条理化，易于阅读，便于读者抓住主题。段内的所有句子应围绕主题句的意义加以阐述或论证，为中心思想服务。句子之间应衔结自然，有条不紊，而且还要合乎逻辑，段落中不能出现任何与主题无关的句子；英语写作比较重视主题句的作用，缺少它段落意义就会含糊不清。主题句也可放在段落的中间和末尾等部位，但对初学者来说，以放在段首为好。

在记叙文中，段的结构有时可以很简单，不需要有主题句，叙事一气呵成，中途没有停顿。段与段之所以分开，只是为了起修辞作用，以便把某一细节置于显著的地位。

分段是文章组织上重要的一步，在写一篇文章的时候，一般都会将文章分为3段，第一段也就是文章的开头，第二段是主体部分，第三段自然就是结尾了。当然也可以分成4段等，不管怎么分段，都请大家要记住，在写一篇作文的时候，一定不可以不分段。

接下来就是文章的结尾了，以下是一些写好结尾的方法

1.自然结尾，点明主题。随着文章的结束，文章自然而然地结尾。

如“Helping the Policeman(帮助警察)”的结尾可以是：The two children were praised by the police and they felt happy.

再如“The Tortoise and the Hare(龟兔赛跑)”的结尾可以是：When the hare got to the tree, the tortoise had already been there。

2.首尾呼应，升华主题。在文章的结尾可以用含义较深的话点明主题，深化主题，起到“画龙点睛”的效果。

如“I Love My Hometown(我爱家乡)”的结尾可以是：I love my hometown, and I am proud of it.

3.反问结尾，引起深思。这种方式的结尾虽然形式是问句，但意义却是肯定的，而且具有一定的强调作用，可引起他人的深思。

如 “Learning English can Give us a Lot of Pleasure (学英语能为我们带来许多乐趣)” 的结尾可以是：If we learn English well, we can …Don’t you think learning English is great fun?

4.表达祝愿，阐述愿望

这种方式的结尾常出现在书信或演讲稿的文体中，表示对他人的祝福或对将来的展望等。

如“A Letter to the Farmers(给农民们的一封信)”的结尾可以是：I hope the farmers’life will be better and better. 另外，书信的结尾常有以下形式的祝福语：Best wishes；I wish you a merry Christmas and a happy new year；I wish you have a good time等。

第四种方法在中考作文中并不会太常用到，中考作文一般都不会要求写关于书信方面的文章，大家可以只是稍加了解。

[初中英语作文写作方法技巧

I have studied in my middle school for three years.My life in middle school is rich and I have learned a lot. I get knowledge from text books as well as from extra curricular activities. I studied hard in the past three years so that I got perfect scores. But, I also attach importance to other aspects, such as making friends, hobbies, health and sports. I build good relationships with my classmates. They become an important part of my life.I like to chat with them after class that makes me relax and comfortable. My hobby is swimming. Every Sunday morning, I go to swim with my friends or my father. When I have fun, I build a healthy body. Its so great to me. In one word, my life in middle is colorful and unforgettable.

Dragon Boat Festival is a Chinese traditional festival. It falls on the

fifth day of May in the lunar calendar. A day before this festival, my mother

and grandmother began to make zongzi. Of course, I would act as assistant. But

it turned out that I was more of a hindrance than a help. When they finished,

they started to cook them. This process needed a long time, because I could have

them in the next day. Zongzi was very delicious. On the day of dragon boat

festival, our family prepared for dinner after having breakfast. Everyone of my

family will come back home for the solid diet. Chicken is indispensable on the

dinner desk in Chinese traditional festival. There were many delicious foods,

which made me watering. I ate lots of them. It is a wonderful festival.

The new term is coming and I will be carefully . Because I will learn more

konwlege .

I will listen carefully in class . I will do more sports , such as running

, volleyball . Sports are really interesting . I will read more English books to

improve my English . I will solve more difficult maths problems and be

interested in them . English is important and I will spend more time on it . I

will get up early . I will read book loudly everyday .

I have a wide range of interests and enjoy doing many things during my free

time.

I am fond of reading. I often read after class. My classmates like watching

TV while I prefer to read. I read various kinds of books and newspapers that

they afford me stories and news. The book I like most isThe House on the Mango

Street. I am also a music lover. Pop music is my favorite. I often listen to the

music programs on radio and I also have an MP3 downloading all my favorite

songs. In addition, swimming and badminton are my favorites, too. They help me

build a healthy body.

In short, I enjoy my life in school very much. Reading books, listening to

music and doing sports are very helpful to my health and my studies.

When the summer comes, the weather is so hot, it is rarely to see the rain. Today, when I wake up, I find the weather is chilly, it is going to rain. I am so happy, I miss the rain so much. Suddenly, the rain drops from the sky, I ran out of the house, looking at the sky, dancing with the rain. I feel so cool, then all my weariness has gone.

当夏天到来的时候，天气很热，很难见到雨。今天，在我起床的时候，我发现天气有点凉，准备下雨了。我很开心，我很想念雨。突然，天下起了雨，我跑出房子，看着天空，与雨共舞。我觉得很凉爽，我所有的倦意都消散了。

[初中描写雨的英语作文

Last night, my parents told me that they would go to have dinner with

friends, so they wouldn’t stay at home and let me to buy something to eat by

myself. I played computer games for a long time and when I got tired, I found it

was almost eight o’clock. I didn’t want to go out, so I opened the fridge, there

were many stuffs for me to make dinner. I had never done it before, I only

watched my mother cook, but I still wanted to try. I made a fire and put the

meat in the pan, the flavors were also mixed in it. When the meat almost got

black, I finished. Whe I tasted, I realized the meat was over cooked. I must

learn to cook.

"As" this sentence is confirmed by the wonderful nature, yesterday the

wisper under light rain, my heart is heavy like a rock, because want to master

and old milk grave, before, I dont understand the real meaning of the qing Ming

day, until today after sweeping the tomb, I understand the true meaning of

tomb-sweeping day!

At seven o clock in the morning, we prepare to master and old milk grave,

grave is a fresh thing for me, we take tools and set off.

Walking the winding mountain road, I cant wait, after about an hour, we

came to the master and old grandmas grave, a year didnt come, graves are

covered with wild grass, you well after the division of labor, began to busy,

everything is in place, we started to burn money, along with the smoke, I seem

to see their shadow, they told me: study hard and cherish life.

Yes, life is short, happy every day to live, to continuously surpass

ourselves, surpass ourselves, dream will come true; The superego, the dream into

power; Beyond the self, to create beautiful life! I think life is constantly

transcend self, beyond the dream!!!!! Panoramic view of the city house on the

mountain, the mountain was full of golden golden in the rape, deep breath, deep

and remote light fragrance, fresh air, the flowers with irresistible power

explanation of the meaning of life!

初中英语写作教学要把握一定的基本策略。写作是一个角度复杂的思维过程，对认知能力、思维能力、语言能力、组织能力和自我监控能力都有相当高的要求。写作水平的提高依赖于学生的参与，依赖于教师的指导和课堂教学的有效开展。

所谓写作教学策略，就是用来促进写作教学开展的方式方法。

1.写作的早期训练。英语写作是一门技巧、技能，需要一个长时间的发展过程才能趋于稳固，因此无论从写作能力本身的培养角度来说，还是从写作教学方法的运用角度而言，写作训练都需要早期化。

2.随着学习内容的增多，如学了数字、年龄、年级、班级、个人的喜好和生活习惯等之后，这时可让学生逐步增加写作内容。

做好“书面表达”这道题，学生应该从以下几方面人手：

一、充分准备。打好基础。

为了提高书面表达水平，平时应加强阅读，应背诵一些句型、段落甚至短文。只要读得多、背得多，就能出口成章，下笔成文。其实，用英文写信，记日记等都是学生力所能及且行之有效的练习写作的好方法。

二、仔细审题，明确要求。

对题目所提供的信息要认真分析，明确要求，做到心中有数。要对所提供的信息加以分析、整理，使之更加具体化、条理化，为开始动笔做好准备工作，还要搞清题目的要求，以便根据不同的题材、体裁，写出不同格式，风格各异的文章，此外，还要注意人称、时态、地点等信息，避免出错。

三、抓住重点。寻求思路。

根据题目所提供的信息，草拟提纲，寻求逻辑次序，确定如何下手，否则，语无伦次的文章将不会被人接受，也不可能得到高分。

四、遣词造句，表达规范。

用词要适当，不可逐句把提示汉译英，亦不可生拼硬凑，不要硬拿英语单词到中文句子里去对号，否则写出中文式英语，闹出笑话。一般来讲，写作时，应尽量选出你有把握的词，尽量使用短句(简单句)。如果有的单词不会写，有的思想不会用英语表达，你可以设法绕开，最好找一个同义词、同义句，或近义词、词组短语来代替。要正确使用关联词，如and，or，but，so，because，since等，以便行文自然流畅。

作文写完之后，应注意检查修改，修改时先从全局修改。首先要检查主题是否明确，表达方式是否恰当，接下来检查所写内容是否切题，该交待的内容是否交待了，最后检查所用时态、人称是否符合要求，最后是否一致。

写完后，还应仔细校阅1—2遍。校阅要逐词逐句进行，注意检查语法、拼写、标点、大小写等方面的错误。校阅是自检的最后一关，应严肃认真的进行，尽可能地消灭一切差错，增强文章的效果。

因此，要写好一篇作文，不仅需要具有丰富的思想内容，掌握扎实的词汇、语法及修辞等方面的语言基本功，而且还需要掌握因不同思维方式和文化背景而形成的英语特有的篇章机构模式 惟有这样才能进行最有效的书面交际活动。

一、简单句的九大基本句型

1. “主语 + 谓语”(即“主谓”句型)

这一句型英汉语言结构形式完全相同，说明“某人或某物如何动作”，或者说“某人或某物自身怎样运动”。

例：They arrived in Harbin yesterday morning.

分析：“他们”(主语)“到了”(谓语动作)。

The earth turns around the sun.地球围绕太阳转。

The sun rises in the east, and sets in the west.太阳东升西落。

2. “主语 + 谓语 + 宾语”(即“主谓宾”句型)

这一句型英汉语言的结构形式完全相同，用以说明“某人或某物做什么事情”，或者说“某人或某物发出了动作，并且其动作涉及到另一个人或物”。

例：I study English.

分析：“我”(主语)“学习”(谓语动作)“英语”(宾语即动作涉及的对象)。

I like swimming.我喜欢游泳。

3. “主语 + 谓语 + 间接宾语 + 直接宾语”(即“主谓双宾”句型)

这一句型英汉语序结构相同，说明“某人为谁(间接宾语为人)做某事”，或者说“某人或物的运动涉及到两个对象，其中一个间接对象为人，另一个为物”。

例：Our teacher taught us English.

分析：“我们的老师”(主语)“教”(谓语动作)“我们”(间接宾语)“英语”(直接宾语)。

4. “主语 + 谓语 + 宾语 + 宾语补足语”(即“主谓宾补”句型)

这一句型说明“某人或某物要求(使、让)某人做什么”或“某人感觉某人或物怎么样”。

例： He asked her to go there.

分析：“他”(主语)“要求”(谓语动作)“她”(宾语即动作涉及的对象)“去那里”(补语—补充说明宾语应做什么)。

5. “主语 + have + 宾语”(即“拥有”句型)

这一句型主要用于说明“某人或某物拥有什么(宾语，即有形或无形的资源)”。

例： You have a nice watch. 你有一块漂亮的手表

分析：“你”拥有一块漂亮的手表，即你拥有一个可以及时且漂亮的器具。

6. “There + be + 主语+ …”(即“存在”句型)

这一句型用以说明“在某地或某时存在某人或物”。

例：There is a bird in the tree. 在树上有一只鸟。

分析：“在树上”(地点)“有一只鸟”(存在物)。

7. “主语 + 系动词+ 表语”(即“主系表”句型)

这一句型用以说明“某人(某物、某事、某种概念)具有什么特征或处于什么状态”。汉语的“是”字结构属于这一英语句型的形式之一。常用的联系动词有be, keep，lie, remain, stand, become, fall, get, go, grow, turn, look, feel, seem, smell, sound, taste, 等。

例： I am a teacher. 我是一名老师

分析：“我”(主语)“是”(系动词)“一名老师”(表语—即表明主语的身份)。

She felt very tired. 她感觉到很累。

He became an engineer.他成为了一名工程师。

You look pale today, are you ill? 你今天脸色看起来苍白，病了吗?

8. 比较句型

这一句型用以比较物质甲与乙之间的异同。

1) 相等比较: …as + 形容词/副词原级 + as…;

…as + 形容词+名词 + as…

例：He is as rich as John.他和约翰一样富有。

例：He has as much money as she does.他和她的钱一样多

2) 劣等比较： …less + 形容词/副词原级 + than …

例：He is less careful than she. 他没她细心。

3) 优等比较：…+ 形容词/副词比较级 + than… ;

…the + 形容词/副词比较级 + of the two…

例：She is more careful than he.她比他细心多了。

例： He is the cleverer of the two boys.两个男孩中他更聪明些。

4)最高级：the + 形容词/副词最高级(单数名词或one)+ {of(among) + 人或物｝

{in + 场所｝

例： He is the tallest in the class.他是班上最高的。

9. “it + is/was + 形容词 + to do/从句”(即评价句型)

这一句型用于说明“某一动作或事情属于什么性质或具有什么特征”。即对某一动作或事情进行评价。(这里it 是形式主语，真正的主语是 to do 结构或 that 从句)

例：It is important to learn a foreign language.学习一门外语很重要。

分析：本句重在说明“学习一门外语”(to learn a foreign language)这一动作的性质是“重要的”。

A Visit to the Flower Show

Last week Nature Park held a flower show. I went to visit it with my friends. I was very glad to see so many beautiful flowers in the park. I was really amazed to see a sea of colourful

flowers. They told me that some rare flowers came from Taiwan. Thousands of people stopped and watched them carefully. I took many pictures there. Taiwan has always been a part of our country. I am sure sooner or later we can go there to see many more beautiful flowers. What great fun it will be.

Today the quality of our natural environment has become an important issue.

The world population is rising so quickly that the world has become too crowded.We are using up our natural resources and at the same time polluting our environment with dangerous chemicals.

If we continue to do this,life on earth cannot survive.Concerned people have made some progress in environmental protection.

Governments of many countries have established laws to protect the air,forests and sea resources and to stop environmental pollution.Still more measures should be taken to solve environmental problems.

People should be further educated to recognize the importance of the problems,to use modern methods of birth control,to conserve our natural resources and recycle our products.

We are sure that we can have a better and cleaner place in the future.

（1）以单数名词或代词，动词不定式短语作主语时，谓语动词要用单数;主语为复数时，谓语用复数，例如：

He goes to school early every morning.

The children are playing outside.

To work hard is necessary for a student.

（2）由and或both……and连接的并列成分作主语时，谓语动词用复数。例如：

Both he and I are right.

Mr Black and Mrs Black have a son called Tom.

但并列主语如果指的是同一人，同一事物或同一概念，谓语动词用单数。例如：

His teacher and friend is a beautiful girl.

The poet and writer has come.

（3）由and连接的并列单数主语之前如果分别由each, every修饰时，其谓语动词要用单数形式。例如：

In our country every boy and every girl has the right to receive education.

Each man and each woman is asked to help.

（4）主语是单数时，尽管后面跟有 but ,except, besides, with 等介词短语，谓语动词仍用单数。例如：

The teacher with his students is going to visit the museum.

Nobody but two boys was late for class.

Bread and butter is a daily food in the west.

（5） 一些只有复数形式的名词，如people, police, cattle, clothes等作主语时，谓语动词要用复数。例如：

A lot of people are dancing outside.

The police are looking for lost boy.

（6）由each, some, any, no, every 构成的复合代词作主语时，谓语动词都用单数。例如：

Is everybody ready?

Somebody is using the phone.

（7）有两部分构成的物体的名词，如glasses, shoes, trousers, chopsticks, scissors 等作主语时，谓语动词用复数。例如：

Where are my shoes? I can’t find them.

Your trousers are dirty. You’d better change them.

如果这类名词前用了a pair of等，则往往用作单数，谓语动词的单复数形式往往取决于pair的单复数形式。例如：

Here are some new pairs of shoes.

My new pair of socks is on the bed.

我爱运动的英语作文篇一

I love sports. I love all kind of sports.

I can’t stay inside the house for a long time.

When I have spare time, I will go out to play sports.

If it is convenient, anyone asks me to go out to play sports, I will say yes.

I often go hiking, running, swimming, play basketball, football, volleyball, table tennis and so on.

All of them are my favorite. And because of them, I have a good body.

我爱运动的英语作文篇二

I love sports and athletics. Sports and athletics are not just building our bodies but also refueling our spirits.

They give us energy to continue our work and studies as well as incentive and momentum to create.

They help us maintain a positive attitude towards life and stay competitive whenever facing any challenges.

Without sports and athletics, we should definitely be in a tedious world living a tedious life.

我爱运动的英语作文篇三

Taking exercise is good for our health. All work and no play makes Jack a dull boy.

By taking exercise, we can relax our body and mind.

At the same time, we can harden our muscle and have a good figure.

If we dont take exercise for a long time, we may easily fall sick.

I enjoy several outdoor sports.

Swimming in the sea is my favorite.

Because there are too many people in a swimming pool and the water is always dirty, I prefer to swim in the sea.

Playing badminton is also fun.

I can always find a place in the park for playing badminton.

Besides, I enjoy jogging in the morning.

Sometimes, I jog with my parents in the park.

Protect our environment

In the last several decades, our earth has been extremely polluted, such as air pollution, water pollution, noise pollution and so on. In recent years, the extreme weather becomes more and more frequent. Winter gets colder and summer becomes hotter and it rains more frequently. All of these warn us that protecting the environment is a serious and emergent event. As our general people, we should build proper lifestyle. We should pay attention to water and light saving. When we go out, we should firstly choose the public transportation. The most important is that we must realize that we can do a lot of things to protect our environment. Its our duty to make our home better. Let’s change from ourselves.

When I go to school, my teachers teach me a lot of knowledge and show me

the way to explore the world. I admire my teachers so much, so I have made up my

mind to be a teacher when I grow up. It is always my dream. I must work hard to

realize my dream. From now on, I need to make the plan.

Wonderful life in winter holiday

From the sixteenth of January to the seventh of February is our Winter Holiday. I think everybody did a lot of things in the Winter Holiday. But I didn’t. Let you to listen to my story of Winter Holiday.

I spend a lot of time on the homework.. Every day in my Winter Holiday, I always got up late. then I listened to the tape, it was nine o’clock. then I ate breakfast and then I did my homework during the daytime! I’m not very slow but the homework was too heavy!

I’m unlucky on the playing too. I played firecracker but I hurt my finger with the fire. I ‘m careless to kindle the firecracker, so I’m very unlucky.

I still unlucky on my friend’s party. In the morning, I wanted to get up early but I woke up at 10:50. After ten minutes, the party would start! So I only eat a piece of bread then I go to my friend’s home! And I stay at his home for a long time when I came home. My mother and father were very angry and they scolded me!

I’m worried and feel unlucky on my weigh. Last term, I was 48 kilogram but now I am 51 kilogram! I must to do banting!

But most important, I have gone to Shanghai Ocean Aquarium, I want to go there very much because I want to see the horse, the monkey……in the sea. Now I’ve done it . It is a bright dot in my Winter Holiday.

[初中英语作文：winter holiday（寒假）

In recent years, people are developing aninseparable relationship with Internet. As is known toall, it is convenient for us to click the mouse whensurfing on line, either to entertain ourselves or to meet the works needs.

On the one hand, no one denies that Internet is currently one of the most useful media inour daily life. As a college student, I get on line every day to exchange information through e-mails with my net friends. But on the other hand, a good many people admit that they are toomuch addicted to Internet to maintain a regular and wholesome lifestyle.

Thus, it is necessary for us to use Internet in a reasonable way and restrain fromoverindulgence. After all，Internet is invented to enrich our life, and to improve the efficiencyof our work rather than shackle us with a chain.

I have a good friend, when I was five years old, I met her, she is my neighbor, we became friends and play together all the time. Last week, my friend took part in the female basketball match, she is good at basketball, so I encouraged her to join our school team. The team played so well that they came to the final yesterday, the match was so excellent, at last, my friend’s team won the first place, I feel so happy, I plan to buy her a present and congratulate her. I feel so proud of her, she inspires me, too. We give each other encourage to move on. We will be good friends forever.

我有一个好朋友，在我五岁的时候，我就遇到了她，她是我的邻居，我们成为了好朋友，一直在一起玩耍。上周，我的朋友参加了女子篮球比赛，她很擅长篮球，所以我鼓励她加入校队。她的队伍打得很好，昨天打入了决赛，比赛很精彩，最后，我的朋友的队伍赢得了第一名，我感到很开心。我打算给她买一个礼物，祝贺她。我为她感到自豪，她也鼓励了我。我们给予彼此勇气前进。我们永远都是好朋友。

[祝贺朋友初中英语作文