型冠状病毒英语作文初中80词（汇编20篇）

一天，我和妈妈去爬黄山。我刚开始爬的时候觉得很容易。但当我爬到一半时，我累极了优秀作文 专注写作 ，上气不接下气。我问妈妈：“我能爬到山顶吗?”妈妈回答说：“只要你有勇气，你就能征服所有的山，不管它们有多高!”于是我就继续爬。半小时之后，我终于爬上了山顶。多么美好的一天呀!

One day, Mother and I went to climb Mount Huang. When I began to climb, I felt very easy. But when I climbed the haft way, I was verytired.and quite out of breath. I asked mother, "Can I climb to the top?" Mother answered, "As long as you have courage, you can conquer every mountain,

no matter how high it is! "So I went ahead. Half an hour later, I climbed to the top finally. What a wonderful day I had!

Today is Saturday, I don’t need to go to school, so I decided to take some morning exercises. Early in the morning, I went out of the house and looked around, the city was so quiet. With few cars, the air was fresh, I felt so comfortable. Besides the people who took the morning exercise, I found some people who worn the orange uniform, they were working. This was the first time for me to see the cleaners work in the morning, they were easily neglected, because they worked so early and when the time for people to go to work, cleaners rested. Watching these cleaners working, I feel so thankful for them, they were doing the greatest job. People praised them as the city’s dressers, they kept the city clean all the time and brought comfort to people. They are the respectable people, we should applause for them.

I remember once upon a time, when I was running 800meters, I felt there seemed to be the impossible mission for me, I wanted to give up, then my teacher told me that I should not think about the 800meters, I should set up 100meters for myself, then I wouldn’t be so tired.

I did as he told me, indeed, every time when I finished the small goal, I was happy, in the end, I finished the running. I learn the lesson that we need to set up the best goal, it means we can make the small goals, which are so easy for us to realize.

Then every time we finish the small goal, we will close to our final destination.

我记得有一次，当我跑800米的时候，我觉得这对于我来说是不可能的任务，我想要放弃，然后我的老师告诉我不应该想着800米，我应该为自己定下100米的目标，这样才不会那么累。我按他说的去做，每次我完成了小目标，我就很开心，最后，我完成了跑步。我学到了东西，我们需要定下最佳的目标，这意味着我们可以定下小目标，对我们来说容易实现。每次我完成了小目标，就会离最终的目的地近了一步。

[初中英语作文：最佳的目标

The definition of happiness always causes the public’s attention. Some

people believe that making a lot of money and earning great reputation are the

standard to define success, while some people think that spending more time with

their families deserves all the things and it is their bliss. In my opinion, the

meaning of happiness varies according to different people, but there is one

thing in common, which is their positive attitude to life. I am so lucky to born

in a happy family, and my parents give me all their love. Though we are

ordinary, I am so satisfy with my life now. I cherish the thing I have.

Father is the mountain, the fathers love is great, solid and extensive, the mother is the sea, the mothers love to give us warm, honest and delicate. They give us flesh and blood, raise us up, let us know ourselves, know the world, let us become useful to the motherland. Parents love for me among the number of my mothers love for me more like a trickle into my heart.

Last years winter vacation day, under the goose feather snow, a vast expanse of white, crystal white snow from the clouds in the clouds have been hailed down. I cough from time to time, my mother came to hear the sound. Mother, hurry to carry me straight to the hospital. Snowflakes continue to fly in the cold wind.

My mother wrapped me tightly, for fear that I was cold again. Suddenly, I think my mother breathes more and more rapid, feet every step is very difficult. I let my mother rest for a while, but my mother refused. Gradually, my mother on the forehead off the line of pearls like sweat constantly rolling down. Hospital ah hospital, you usually so close from my home, how today - a scream to interrupt my thoughts - my mother fell. I feel bad to let my mother rest for a while, but my mother pretend nothing.

My mother went back to the hospital. To the hospital, my mother keep next to me, move away! Mom always care about me, I am also very concerned about my mother. Once, my mother is sick, I take the initiative to take housework, feeding mother to take medicine.

These things I vividly, I can not help but think of a poem: mother hand line, wandering body coat - my mother gave me the most meticulous, the most eternal, the last words, the most pure and sincere love! I love my mother, we are happy and happy one!

The Spring Festival

The Spring Festival comes in winter。 It is the most important traditional festival in China。

People usually go home to spend the festival with their family。 They have a big family get-together。 The Chinese people have big meals and watch TV during the Spring Festival。 They also visit their friends and relatives。

Children like the Spring Festival very much because they needn’t go to school and they have a lot of time to play。

The traffic problem is one of themost serious problems in my hometown. Recently, more and more people have privatecar, but the roads are so narrow that we have to fight against the heavytraffic when we go out. Especially during the rush hours, cars and buses areunable to move. To make things worse, many people are killed in the trafficaccidents. How miserable it is!

在我的家乡交通问题是最严重的问题之一。现在越来越多的人拥有私家车，但道路却是如此的狭窄，所以我们出门的时候都必须和交通拥挤对抗。尤其是在繁忙时间段，汽车和公共汽车都动不了。更糟的是，许多人在交通事故中丧生。那是多么悲惨的啊!

For the sake of our life andsecurity, some measures must be taken to change the present situation. In thefirst place, as there are a great many cars, we should control the number ofprivate cars and vehicles and use the public transportation more often.Secondly, the government should widen the roads and build more flyovers, so asto ease the traffic pressure and reduce the traffic accidents. In addition, theundergrounds and light rails should be constructed, so that we can have morechoices when going out and do not have to worry about the traffic jams in thefuture.

为了我们的生命和安全起见，我们必须采取一些措施来改变现状。首先，因为有很多车，所以我们应该控制私家车的数量，更经常使用公共交通工具。其次，政府应该拓宽道路，建造更多的立交桥，以缓解交通压力，减少交通事故的发生。此外，应构建地铁和轻轨，这样我们将来外出时可以有更多的选择也不用不必担心交通堵塞。

I believe the traffic problem couldbe solved if we devote our actions to them.

我相信如果我们采取行动的话交通问题是可以解决的。

I like midsummer the most in the wholeyear. In the day time, it is very hot. It seems that we all live in the hotpan. It is not comfortable. But in the evening, the sky is clear and bright.

I cansee the stars clearly and sometimes I can see bright and round moon.

Besides,compared to the day time, midsummer night is very cool.

When the wind blowthrough me, I feel wonderful. My all day trouble is gone with the wind. I likelooking at the sky in the roof of my house in midsummer night. It is beautiful.

一年当中我最喜欢的是仲夏。白天的时候，天气很热。我们就好像生活在热锅上一样。很不舒服。但是，在晚上，天空很清澈明朗。我可以清清楚楚地看到天上的星星，有时我还能看到又亮又圆的月亮。而且，跟白天相比，仲夏夜很凉爽。当风吹过我的时候，那感觉是很棒的。一整天的烦恼都随风而逝了。我喜欢在仲夏夜我家屋顶上看天空。很漂亮。

[初中英语作文：仲夏夜

i come from china.i am 13.i am a lively girl.my name is wang ting,and my english name is linda.i am keen on sports,because it can make me strong.i also like reading book,because i can learn some knowladge.i like reading best.i enjoy it when i was a child,i think it has many attractions.my ambition is to be a teacher in poor mountain region schools,the children there cannot go to school for theyre so poor.they are so clever and lovely,it is really a pity if they cannot go to school.so i want to help them.thank you

[自我介绍初中英语作文

The Spring Festival is a traditional festival in our country. Every Spring Festival, people always want to paste Fu characters, couplets, firecrackers. You see, every family has a decorated, the scene bursting with happiness.

Our family is no exception. I picked up a pair of spring couplets, stuck the glue on the door and put it neatly. Dad will "blessing" upside down on the door. Her sister was also busy in the room. She picked up a few red lanterns and hung them in the room, and put a bunch of small colored lights on the wall. The small color lights flicker like a small star in the blink of an eye.

"The year" the sound of firecrackers, the new year has passed. I love fireworks and love the Spring Festival more.

假如你是英国学生PETER在北京学习，请按下文给你的朋友MARY写一封信谈一下北京和伦敦的异同相同点：北京和伦敦都是首都和重要城市，都拥有众多人口，都是国家经济 政治 文化中心，都拥有许多历史，文化古迹不同点：伦敦；汽车靠左行小学作文 ，很多人坐汽车上班 阴天多 懂汉语人少 学生不充分利用时间

北京：汽车靠右行很多人骑自行车上班 晴天多 懂英语人多 学生学习勤奋

Dear Mary,

I have been living in Beijing for some time now and I find it very interesting here.

There are so many similarities between Beijing and London. They are both the capital of the country and are both very important cities. Both places have huge populations. They are both the economical, political and cultural center. They both have many historical and cultrual

I also found many differences in the two cities. In London we drive on the left side of the road, while in Beijing they drive on the right side. Most people in London go to work via public transportation, here in Beijing most people rides bycicles. In London the weather is always cloudy, here in Beijing most the the time it s sunny. And in London most student don t spend their time efficiently, but here in Beijing many people speak English cause they study hard.

Regards,

Peter

我的假期

I’m going to the sun on my holiday. I will go there by a spaceship. I will take a big blue spaceship。

then I’ll pilot the spaceship to the sun. the sun is very hot. So I put on the super-shirt. In the morning, I will have some sun burger for my breakfast.

At eight o’clock, I will play with my friends there. they are super dog and super girl. Super dog is white and black. Super girl is very clever. Super girl and super dog like to play with me. So I play with them for forty minutes. then I do my homework in my little red room on a small blue table. After my home work, I will have my lunch. I will eat sun salad. I will make some red toy bear to the sun babies. I will have red juice, red fish and red rice. All the things are red. then I need a lot of water on the sun because the sun is too hot. So I will walk to the spaceship. I’ll pilot the spaceship to the earth.

[初中一年级英语上册作文

短语有两方面的功能：一方面是作句法成分，所有短语都能充当一个更大的短语里的组成成分;另一方面是成句，大部分短语加上句调能独立成句。以下是由语文迷为大家提供的英语写作素材：英语短语，希望你喜欢。

1 (see 、hear 、notice 、find 、feel 、listen to 、 look at (感官动词)+ doing

eg :I like watching monkeys jump

2 (比较级 and 比较级) 表示越来越怎么样

3 a piece of cake =easy 小菜一碟(容易)

4 agree with sb 赞成某人

5 all kinds of 各种各样 a kind of 一样

6 all over the world = the whole world 整个 世界

7 along with 同……一道，伴随……

eg : I will go along with you 我将和你一起去

the students planted trees along with their teachers 学生同老师们一起种树

8 As soon as 一怎么样就怎么样

9 as you can see 你是知道的

10 ask for ……求助 向…要…(直接接想要的东西) eg : ask you for my book

11 ask sb for sth 向某人什么

12 ask sb to do sth 询问某人某事 ask sb not to do 叫某人不要做某事

13 at the age of 在……岁时 eg：I am sixteen I am at the age of sixteen

14 at the beginning of …… ……的起初;……的开始

15 at the end of +地点/+时间 最后;尽头;末尾 eg : At the end of the day

16 at this time of year 在每年的这个时候

17 be /feel confident of sth /that clause +从句 感觉/对什么有信心，自信

eg : I am / feel confident of my spoken English I feel that I can pass the test

18 be + doing 表：1 现在进行时 2 将来时

19 be able to (+ v 原) = can (+ v 原) 能够…… eg : She is able to sing She can sing

20 be able to do sth 能够干什么 eg :she is able to sing

21 be afraid to do (of sth 恐惧，害怕…… eg : Im afraed to go out at night Im afraid of dog

22 be allowed to do 被允许做什么

eg: Im allowed to watch TV 我被允许看电视 I should be allowed to watch TV 我应该被允许看电视

23 be angry with sb 生某人的气 eg : Dont be angry with me

24 be angry with(at) sb for doing sth 为什么而生某人的气

25 be as…原级…as 和什么一样 eg : She is as tall as me 她和我一样高

26 be ashamed to

27 be away from 远离

28 be away from 从……离开

29 be bad for 对什么有害 eg : Reading books in the sun is bad for your eyes 在太阳下看书对你的眼睛不好

30 be born 出生于

31 be busy doing sth 忙于做什么事 be busy with sth 忙于……

32 be careful 当心;小心

33 be different from…… 和什么不一样

34 be famous for 以……著名

35 be friendly to sb 对某人友好

36 be from = come from 来自

eg ：He is from Bejing He comes from Bejing Is he from Bejing ? Does he come from Bejing ?

37 be full of 装满……的 be filled with 充满 eg: the glass is full of water the glass is filled with water

38 be glad+to+do/从句

39 be going to + v(原) 将来时

40 be good at(+doing) = do well in 在某方面善长, 善于……

41 be good for 对什么有好处 eg : Reading aloud is good for your English

42 be happy to do 很高兴做某事

44 be in good health 身体健康

45 be in trouble 处于困难中 eg : She is in trouble They are in tronble

46 be interested in 对某方面感兴趣

47 be late for = come late to 迟到 eg: Be late for class 上课迟到

48 be like 像…… eg : Im like my mother

49 be mad at 生某人的气

50 be made from 由……制成(制成以后看不见原材料)

51 be made of 由……制成(制成以后还看得见原材料)

52 be not sure 表不确定

53 be on a visit to 参观

54 be popular with sb 受某人欢迎

55 be quiet 安静

56 be short for 表**的缩写 eg: 陶 is short for 陶俊杰

57 be sick in bed 生病在床

58 be sorry to do sth be sorry for sb eg : I am sorry for you

59 be sorry to hear that

60 be sorry to trouble sb eg : I am sorry to trouble you

61 be strict in doing sth 严于做某事 eg : Hes strict in obeying noles

62 be strict with sb 对某人要求严格 eg: Some students are not strict with them selves 这些学生对自己不严格

63 be strict with sb in sth 某方面对某人严格

64 be supposed to do 被要求干什么

65 be sure 表确定

66 be sure of doing sth 对做某事有信心 eg: He is sure of winning I am sure of learning English well

67 be sure of sth 对做某事有信心 eg: Im sure of my head (my teacher 我相信我的大脑(老师)

68 be sure that sth 对做某事有信心 eg: Im suer that he can pass the test 我相信他能通过考试

69 be sure to do sth 一定会做某事

eg: We are sure to pass the test 我们一定会通过这次考试 We are sure to learn English well 我们一定能学好英语

71 be terrified to do sth 害怕做某事

72 be the same as … 和什么一样

73 be used to doing sth 习惯做某事

eg: My father is used to getting up early 我爸爸习惯早起 He is used to sleeping in class 他习惯上课睡觉

He is used to working hard He is used to hard work 他习惯努力工作

74 be worth doing 值得做什么

75 be(feel) afraid to do sth 害怕做某事 be afraid of sth 害怕某物 be afraid that 丛句

76 because+句子 because of +短语

eg : He was late because he had a headache He was late because of his headache

77 begin to do = start to do 开始做某事 start…with…=begin…with… 以什么开始什么

eg : Let‘s begin the game with the song I begin to go home

78 between…and… 两者之间

79 borrow sth from sb 向……借…… lend sth to sb ( lend sb sth 借给……什么东西

eg : I borrowed a pen from him he lent a pen to me ( he lent me a pen

80 both = the same(as) = not different(from) 表相同

81 bother 打扰 bother sb to do sth

eg : I‘m sorry to bother you ,but can you tell me to way to the station

我十分道歉打扰你，但是你能告诉我怎么去车站

the problem has been bothering me for weeks 这个问题困扰了我几个周了

He‘s bothering me to lend him money

82 by the end of 到……为止

83 call sb sth eg : We call him old wang

84 care 关心 eg : Don‘t you care about this country‘s future ?你为什么不关心国家的未来

85 catch up with sb 赶上某人

86 chat with sb 和某人闲谈 take sb to + 地点 带某人去某地

87 come in 进来

88 come over to 过来

89 come up with 提出 eg: Can you come up with a good idea 你能想出一个好办法吗?

90 communicate with sb 和某人交流

91 consider + doing 考虑做什么 eg : Why not consider going to lu zhou 为什么不考虑去泸州?

92 dance to 随着……跳舞 eg : She likes dancing to the music 她喜欢随着音乐跳舞

93 decide to do sth 决定做某事

94 do a survey of 做某方面的调查

95 do better in 在……方面做得更好

96 do wrong 做错

97 Don‘t forget to do sth 不要忘了做某事

98 Don‘t mind +doing /从句 /名词 不要介意……

99 each +名(单)每一个…… eg : Each student has many books 每一个学生都有一些书

100 end up +doing

101 enjoy +doing 喜欢

102 escape from 从……逃跑

eg: The prisoners have escaped from the prison 犯人从监狱里逃跑出来

Some gas is escaping from the pipe 有一些气体从管子里冒出

103 expect to do sth 期待做某事

104 fall down 摔下来 fall off 从哪摔下来

105 fall in love with sb /sth 爱上什么

106 far from 离某地远 eg : The school is far from my home

107 find +it +adj +to do 发现做某事怎么样

108 find sb/sth +adj 发现什么怎么样? eg : I find the book interesting

109 finish 完成+doing(名词)

110 fit to sb = be fit for sb 适合某人

111 forget to do 没有做而忘了 forget doing 做了而又忘了 eg: Don‘t forget to go home I forget closing door

112 from…to… 从某某到某某 eg: From me for her

113 get /have sth down 做完，被(别人)做……

eg: I have my hair cut 我理了发(头发被剪了)

Tom got his bad tooth pulled out 汤母把他的坏牙拔掉了(被牙医拔掉了)

114 get a part-time job = find a part-time job

115 get along well with sb = get on well with sb 与某人相处得好

116 get along with sb = get on with sb 与某人相处

117 get ready for = be ready for 为什么而准备 eg : I get ready for math I am ready for math

118 get sb in to trouble 给某人麻烦

119 get sb to do sth

120 get…from… 从某处得到某物

121 give a talk 做报告 eg: He is give a tall

122 give sth to sb give sb sth 给某人某物

123 go fish 钓鱼 go swimming 游泳

124 go on to do 去做下一件事 go on doing 继续做这件事

125 go out away from go out of

126 go to school 上学(用于专业的) go to the school 去学校(不一定是上学)

127 good way to 好方法

128 hate to do 讨厌没做过的事 hate doing 讨厌做过的事

129 have a party for sb 举办谁的晚会

130 have a talk 听报告 谈一谈

131 have been doing 现在完成进行时 eg : You have been talking You have been sleeping since

132 have been to …( 地方)……去过某过地方 have gone to …(地方) 去了某地还没回来

133 have fun +doing 玩得高兴

134 have sth to do 有什么事要做

eg: I have a lot of homework to do 我有很多家庭作业要做

I have nothing to do 我没什么事情做

135 have to do sth 必须做某事

136 have trouble (problem) (in) doing sth 做什么事情有麻烦

137 have…time +doing

138 have…(时间)…off 放……假 eg: I have month off 我请一个月得假

139 hear sb +do/doing 听见某人做某事/正在做某事

140 help a lot 很大用处

141 help sb with sth one‘s sth 帮助某人某事(某方面) help sb (to) do sth 帮助某人做某事

142 hope to do sth 希望做某事

143 How about(+doing) = What about(+doing)

144 how do you like = what do you think of 你对什么的看法

145 if : 是否=wether

eg: I don‘t know if (wether) I should go to the party 我不知道我是否应该去参加晚会

He don‘t know if (wether) we will arrive on time tomorrow morning 他不知道我们明天早上是否能准时到达

146 if :如果，假如(全部接一般时态)+条件语态从句

eg: I‘ll go to LuZhou if it does‘t rain 假如明天不下雨，我就去泸州

If they change the plan they will let me know 假如他们要改变计划，他们会让我知道的

I‘ll go to England ,if I have enough money next year 如果我明年由足够的钱，我就要去英国

147 in one‘s opinion = sb think 某人认为

148 in some ways 在某些方面

149 in the end = finally(adv) 最后

150 in the north of… 什么在什么的北方 (north 北 sowth 南 west 西 east 东 )

关于五一假期的英语作文

In this holiday l was very happy.Why? Because my famliy go to Beijing.We saw Tiananmen.The sky was blue ,Tiananmen was red and yello.It is very nice.Then I played with my mother and father in Xiangshan.In the afteroon we went to Yuanmingyuan.

Look at Yuangmingyuan, I was very sad.In the evering we ate some litto food.

Beijing was very big.I love it very much.

Tomb Sweeping Day is on the April 5th every year. Its a day to show our great respect to our deceased ancestors. On that day, we usually sweep the tomb of our ancestors and offer them food and drinks. We also burn paper money to them. It is believed that our ancestors in heaven will receive the money. Besides, everything in our nature takes on a new look on that day, so its the best time for spring outing. It must be fun and relaxing.

My name is Beth。 Im 14 years old， and I study in No。 1 Middle School of Hangzhou。 My school is very big and beautiful。 Im very happy in the school。

I usually get up at 6：15 in the morning。 Then I do morning exercises in the playground。 At 6：40， I have my breakfast。 You can see many students and teachers in the dinning room。 After breakfast， I often read English with my classmates。

We have six classes every day。 The first class begins at 7：50 am。 I like all the classes for my teachers can make the classes lively and interesting。 My favorite subject is English， so I join English Corner every week。 I can speak English with many other students there。 Its very interesting and exciting。 I think its helpful for me to learn English well。 After class， I always play games with my friends。 We play soccer ball，basketball， volleyball， ping—pong and so on。 They are very relaxing。

I like my lessons， my friends and my teachers。 In a word， I love my school。 I find my school life more and more meaningful and colorful。 My school life is wonderful， isnt it？

A few days ago, the movie Red Sea Operation was very hot and people were

very impressive about the policemen, who saved the citizens lives in a very

urgent situation, some even sacrificed their lives as the price. We live in a

peaceful country. This is because policemen protect us all the time, and they

are the great persons. March 14th is the policemens day, people make this day

for them and show respect. They deserve the publics praise. They sacrifice so

much, such as the time to accompany their families. Many childrens future dream

is to be a policeman, as this career brings the public hope and future.

Dear friend,

My name is Wang Lin . Now I live in Hangzhou , China. I want to find a pen pal in England. I’m now 14 years old . I speak Chinese .And I can speak a little English. I like sports ,swimming is my favorite . I also like playing the computer games . My favorite subject in school is math. I like to

go to movies with my friends. My favorite movie is Beauty and Beast . Now I live with my parents .

Can you write to me soon ?

Wang Lin

[初中初一英语介绍自己的作文

January 21

It was cooler than yesterday. One of my father’s friends invited me to eat red bayberries. You must know it is unusual. Because we will climb the hill to eat red bayberries. There is no chance to eat red bayberries in the hill for the people who don’t live in Beijing. On the hill, you can breathe the fresh air, you can listen birds singing and you can eat red bayberries. It was enjoyable. It is said there are wild pigs in the hill. What a beautiful natural.

January 22

Today I found time was a cruel thing. Whatever man is, time always goes on. It won’t stay to wait for somebody. You can’t use anything to exchange time. Time is also a fair thing. Although you have a lot of money or you enjoy high reputation, time won’t leave them more. Today I found I hadn’t enough time. Although I have 50-day holiday, but I found I had a lot of things to do. I had a lot of homework to do and I had something necessary to do.

January 23

I have rested for 10 days. In these days, I felt very bored. I didn’t know to do what. Although I had a lot of things to do, I felt uncomfortable. I was ill because of the cold weather. I was tired, sleepy and had no strength. My parents are worried about my health. in fact, it didn’t matter. I was always in the room with air-conditioner and opened it in a low temperature. So when I went out, the high temperature disagreed to me. Finally, I was ill.

Everyone has different hobbies.Some people like to paint and others like to play basketball.I have many hobbies because I like to do many things.Let me share a few of my hobbies with you.

To begin with,I really lie games,both indoor and outdoor.I like collecting cards and playing card games with my friends.But my favorite games are vidio games.I could play them all day long.On the other hand,I also like being outside in the fresh air and sunshine,so I play a lot of sports.I like riding and rollerblading very much,but swimming is my favorite sport.

In addition,I like to draw pictures and read comics,but please dont tell my parents because they dont approve.listening to music and singing songs are things I enjoy too,and Im learning how to play an instument--the guitar.Finally,I enjoy learning English because I like speaking with foreigners and I like watching Disney cartoons.

As you can see,my hobbies keep me busy and excited.Im always looking for new things to do!

[初中英语作文：我的爱好

Dear Mr.Brown:

As I have not heard of you for long, I feel anxious.How are you doing in this winter vocation.Some of my classmates intend to travel,because they think it can relax themself.There has some students plans to read more books at home,in order to make a preparation for the learning of future.Other schoolmates prepare to take part in physical exercise,just for keep their health.By the way, my plan of winter vocation is doing more houseworks for my mother,because she is very hard to do that.I want to relieve her burden.

Let me hear if you receive the letter safely.

Yours

[寒假的计划初中英语作文