0

关于给航天员的一封信大全7篇 写给某某的信英语【精彩20篇】

春节是新的开始,是播种希望的季节,接下来小编搜集了关于给航天员的一封信大全7篇 写给某某的信英语,仅供大家参考,希望帮助到大家。

浏览

728

作文

1000

英语封信

全文共 400 字

+ 加入清单

Li Hua is a Yong Pioneer. He is going to the park. Now he is waiting for a

bus. Suddenly he finds a watchon theground.He askssome people, "Whose watch is

it?" But the watch isnt theirs. So he gives the watch to a policeman.

Now Li Hua gets on the bus. He is sitting near the window. An old woman

gets on the bus. She has no seat. So he stands up and says, "Here is a seat for

you, Granny. Please sit here"

展开阅读全文

更多相似作文

篇1:英语封信

全文共 284 字

+ 加入清单

On Sunday morning, I and ching-ching, clearly three good friends go to

outdoor outing, we passed through the stream, and the woods, we play a fun game:

hide and seek, the eagle catches chicken game, such as when you take a hat with

the wind still running around, we spent a pleasant day.

展开阅读全文

篇2:英语封信

全文共 781 字

+ 加入清单

My mom bought two rounds to me today bicycle, after coming home, I push it

to square to ride at once, I just went up to stepped on a car to break up, I

fell at a draught. There is a lot of child on square at that time playing, see

my trip, a lot of person laughed.

I put the car on square, come home to call Hong Yihan of my little brother

to help me practice cycling. I above ride, my little brother is helped up at the

back. I ride ah ride, came up against flower bed to go up a little while, bump

to the wall a little while. A lot of we two fall to go up often.

Practiced so one afternoon, I learned to ride a bicycle eventually. I help

a car up to make Hong Yihan of my little brother experienced again later. To the

dusk we can ride a bicycle. Although very tired, but we are very glad.

展开阅读全文

篇3:圣诞节寄给朋友的一封信英语

全文共 275 字

+ 加入清单

Dear ___,

Christmas is coming,I think it is the largest festival in your

country,which just is as grand as chinas spring festival.At this nice

moment,let me say happy to you,and also say hello to all your family.hope you

and your family have the best festival.

yours,

sincerely ___

展开阅读全文

篇4:英语封信

全文共 448 字

+ 加入清单

i have many cousins. i like stella best. she is a pretty girl. she likes

eating cucumbers , eggplants, cabbages… she doesn’t like eating eggs and milk.

so she is very short.

stella is an excellent student . she is the monitor of her class. she likes

studying and she studies very hard. so she is always the top student in her

class.in this summer holiday , i spent a very happy time with her in sichuan . i

often miss her very much.

i like my cousin best!

展开阅读全文

篇5:写一封信小学英语

全文共 795 字

+ 加入清单

Dear Sales Manager,

I, the undersigned, am a senior in the Computer Science Department of Tsinghua University. I ordered a book which is entitled Practical Writing and Reading for NETEM by Wang Li on December 20th, 2004.

However after reading the book on January 10th, 2005, I found that it is a pirated one so that I write to you for complaint.

The book has brought me some negative effects. To begin with, much of my valuable time and energy have been wasted in reading the book since it is quite hard to identify many words in the book. What’s more, I have not benefited from reading the book since some of keys to the exercises are misprinted.

I would like to be informed whether you can refund me the money or change another book for me. I am looking forward to your early reply.

Sincerely Yours

展开阅读全文

篇6:给英语老师的一封信

全文共 525 字

+ 加入清单

老师,您好:

我是五年三班vv

简单的讲,我曾经以为通过这个假期的努力,我会让他喜欢上英语,但看起来我是错了.尽管这个假期又重新补了第八册的英语,但是他还是有些抵触心态......只是希望这学期能得到陈老师的积极支持与鼓励.哪怕是

每一课的单词认真写了,课文很流利的背出来了,课堂会积极回答问题了,课外又读了一个英语故事或笑话等.我希望他得到你的赞赏和鼓励.因为您的一句话,一个鼓励,一句赞赏,可能就会增加他的学习兴趣,也会给他留下终生的记忆.......也可能因此而改变他的一生!!!

陈老师,其实我们知道您非常希望您的每一个学生都学好它......喜欢它.......甚至从他们中间走出未来的外交家,出色的外商,即便是个出租车司机也是可以和老外自如交流的人.

是的,但是有时也许只是一个鼓励的眼神,一句积极的语言,他们都可能会增加学习外语的

兴趣.而且如果能够让他们用外语交流感兴趣的话题,这也不失为一种提高学习英语兴趣的方法.他们可能会因此而改变一生,因为他因你的鼓励支持而喜欢上了它.

我希望也盼望着听到他不断喜欢英语学习的消息.发自内心的说声谢谢您.!!!

我的联系电话是_____________.任何时候都愿意听到您美妙的声音.

祝您工作愉快!!!

vv

展开阅读全文

篇7:封信英语

全文共 2700 字

+ 加入清单

Im sure everybody is interested in dream, so I will share a story with

you.

When we talk about dreams,we are so excited.We all have our own dreams,some

want to be teachers,others want to be doctors,others want to be

scientists.However,not all dreams can come true,as people always give them up

for some reason.

A dream is to a man what wings are to a bird. With a dream in the deep

heart`s core, a man is spontaneously driven to hitch his wagon to a star. A

dream is an inexhaustible source of energy that keeps our enthusiasm burning,

and kindles our desire to enhance our spiritual cultivation, refine our

character, and upgrade our quality of life. A life without a dream is like a

bird with broken wings, confined to a cage and oblivious of what lies beyond the

range of its vision. On the contrary, a man with a dream is like a warrior armed

with ambition, foresight and gallantry, daring to step into an unknown domain to

make a journey of adventure. It is dream that adds fullness, variety, and spice

to our life and makes it worth living.

I would like to take Liu Xiang as an example.Liu,as the first chinese man

to win an Olympic track and field medal,dreamed of defending his Olympic title

on home soil.To achieve this dream,he was bathed with sweat on the training

ground every day.What’s more,now and then he suffered injuries.However,neither

the injury nor the pressure has prevented him from striving to achieve the

goal.Eventually,he kept or even renewed his record in the men’s 110-meter hurdle

with his perseverance.

It is true that barriers may sometimes stand in the way of your dreams,but

remember success is hiding behind them.Instead of making dozens of excuses for

your failure,just think about Liu Xiang’s story,hold on your dreams and never

give up.

If you do not want your dreams to come to naught,then hold fast to your

dreams and never give up.Just as the saying goes,”Do not,for one repulse,forgo

the purpose that you resolved to effect.”

If you can do the following points,your dreams will come true one

day.First,plant your dream in a fertilized soil.Second,water it with your

diligence and give it the best food----knowledge.Third,remove the seeds of

unhappiness for they can destory your dream.The most important is let the seed

of your dream enjoy the beautiful sunshine,so what it can grow well.And however

hard the situation is,o not give it up and always give it your best care.Then

you will get a good harvest in the end.

Dreams are what we pursue for a lifetime,with many dreams,we have

motivation to fight for our life.The opposite side of dream is reality.We have

to face reality everyday,reality is what we perceive in our life.Reality always

frustrates us to be successful.We need to balance them.

展开阅读全文

篇8:给中国航天员写封信优秀

全文共 773 字

+ 加入清单

敬的航天员叔叔:

你们好!

我是江苏南通师范小学的学生。虽然_感动中国颁奖仪式过去了好几天,可我忘不了那一飞冲天的情景,忘不了翟志刚叔叔出舱时的情景,忘不了……

忘不了让13亿人民最提心吊胆的一刻。9月25日晚上21时10分,随着工作人员的声音∶“5,4,3,2,1,点火!”轰的一声,你们肩负着13亿人民的愿望,航天事业的勇往直前,载着伟大,光荣,神圣的使命,直冲云霄,就像一条巨龙直冲入银河。顿时,山西酒泉卫星发射中心一片红色,云雾缭绕,情景十分壮观。发射室里忽然沸腾起来了,13亿人民也热烈的鼓掌,欢呼起来了。千万句不同的语言交织在一起,组成了一句话∶“我们成功了!”

忘不了让13亿人民最难忘是19分35秒,翟志刚叔叔把气闸舱泄压到1000帕,用力拉了3下,可是舱门丝毫没有反映。这是天与地的差别,在地上,只要将气闸舱泄压到2000帕以下,是可以打开舱门的。在刘伯明叔叔的帮助下,用辅助工具将舱门撬开了一条缝,然后用力一拽,将舱门拉开,可残留气马上又把舱门紧紧关上。这时,我的心情万分紧张。过了几分钟,你们终于将舱门打开来了。翟志刚叔叔您接过一面由百名科技人员每人一针亲手绣制的五星红旗在太空中挥舞——此刻,祖国上下亿万人民爆发出震耳欲聋的欢呼声和掌声。那声音在中国的大地上久久回荡……

忘不了……

你们的经历告诉我们∶梦想是美好的,而在实现梦想的漫漫征途中,是要经历千辛万苦的。从今以后,我要像您一样不怕苦,不怕累,不怕难。长大了,也像您一样,将中华民族兴旺的重担挑在肩上!挺起胸膛,时时刻刻听从祖国的召唤,奉献自己!我知道:梦想只是飞翔的翅膀,而不断地奋斗和追求才是成功的保证!梦想有多远,前进的步伐就有多远!

大江南北,长城内外,天涯海角,北国之边——在这个冬天,你们把载人航天的感人事迹和伟大精神,深深烙印在了无数被感动的心灵中。

人:

日期:

展开阅读全文

篇9:给老师的一封信英语

全文共 582 字

+ 加入清单

Dear Ms.vv,

I write this letter because I want to talk to you about thepunishment of copying the sentences on the English book.

I don’t think this punishment is fair.

Firstly, I am quite sure that I did complete my homework before. Itis a weekend assignment. Li Peiqi goes to myhouse every Friday. We do our homework together. She can prove thatI did it exactly.

Secondly, I remembered that I handed in the paper.

Thirdly, I don’t know the rule of punishment before. Besides, Idon’t know my paper disappear.

Last, I still like you so much while I would like you to know thetruth.

Love,

Dora

展开阅读全文

篇10:英语封信

全文共 322 字

+ 加入清单

As a child, I am very naughty and forget about what my mother tells me. One

time, I go back home very late. When I see my mother, she smiles at first and

then turns angry, because she has told me before if I go home late, I must tell

her in advance. I let my mother heart-broken. I feel sorry and promise it wont

happen again.

展开阅读全文

篇11:英语道歉信范文

全文共 690 字

+ 加入清单

Dear John,

I am eagerly looking forward to your visit to our city. After all these years of writing to each other, I can not wait to see you. However, I regret to inform you that I will not be able to meet you at the airport on time.

The reason is that your flight will arrive early in the morning, and the earliest I can reach the airport will be about an hour after you land. Will you please wait for me in the arrival lounge? You can have breakfast while you wait.

By the way, as we have never met I must tell you home to identify me: I am of 165cm tall and have a long hair. In addition, I will wear a white skirt and carry a China Daily at hand.

Hope we can meet soon.

Sincerely yours,

Alice

展开阅读全文

篇12:用英语写一封信关于元旦节

全文共 2996 字

+ 加入清单

Dear Parents of students:

Hello!

New Years Day is approaching, the school staff to your way: "Happy New Year!" According to the provisions of the superior documents, our school New Years Day holiday date: January 1-3, 20__ (Sunday - Tuesday). In order to ensure the health and safety of students on New Years Day holiday, and in order to make students spend a meaningful short holiday, here, we hope you can cooperate with us to do the following work:

1. Students have entered the comprehensive final review stage this term. Please urge your children to do their homework and prepare for the final exam.

2. Please strengthen your childrens safety education. First of all, pay attention to fire safety. Now the temperature drops, the wind high dry winter, is the high incidence of fire, carbon monoxide poisoning accidents season, please strengthen the childrens fire safety education, do not play with fire, do not start fires, in case of fire and other incidents to learn to save themselves, to ensure their own safety, and timely dial 119 fire alarm; Secondly, pay attention to traffic safety. To consciously abide by the traffic laws and regulations, do not ride motorcycles, under 12 years old students are not allowed to ride bicycles, do not take no license, no license, illegal transport of vehicles, etc. In addition, it is necessary to pay attention to the safety and reasonable diet of household gas and electricity, so as to prevent the occurrence of overeating, food poisoning and other harmful events.

3. Please ask the children to strictly enforce prohibition of drugs, alcohol and smoking, prohibit to play games in the game hall, prohibit reading and watching pornography, violence and other books, films and TV programs, prohibit to go to pornographic websites and do not play games for teenagers, prohibit to go to bars, karaoke bars and other game places. Parents, please strengthen supervision, nip in the bud.

4. Educate children to learn self-control, improve the ability of self-management and self-protection. Guide children to learn various safety skills, deal with illegal infringement, in order to timely carry out self-protection.

5. During the holidays, please encourage and support children to participate in community public welfare activities and improve their social practice ability. Should arrange the child attends recreational and sports activity appropriately and other quality education activity, instruct the child to deal with the relation of good recreation and study.

6. During the festival, our school leaders are on duty. Parents can contact us at any time if they need. In case of any special circumstances, please contact the school immediately.

The safety education of students holidays cannot be separated from the support and cooperation of families. Lets work together to ensure that children have a healthy, civilized, safe and fulfilling New Years Day holiday.

May your children make progress in their studies! May the whole family be happy and healthy!

展开阅读全文

篇13:邀请她一封信英语

全文共 605 字

+ 加入清单

Dear Sir or Madam:

We are very pleased to invite Mr。 ______ e to our pany for visiting and

business negotiation。 The business trip will start from 30th Oct。 2006 。 And

because the long business co-operation in future between ______ pany。 and us,

they will e to China for many times。 Please note, however, that we don’t assume

any legal or financial responsibility whatever regarding the presence of ______

in China。 All expenses of ______’Sjourney to/from China, their stay in China as

well as health insurance will be borne by their employers。 We send you our

kindest regards and best wishes for a pleasant trip。

展开阅读全文

篇14:给英语老师的一封信带翻译

全文共 1290 字

+ 加入清单

DearMs. Fu,

亲爱的付老师

Iwould like you to know that I appreciate the help and support you gave to mewhen I was in junior high school. I enjoyed being taught by you immensely. Youare an excellent teacher and inspired me to continue learning with an open andpositive mind.

我想让您知道我非常感激在我上初中的时候你给予的帮助和支持。我非常喜欢你做我的老师。你是一个优秀的教师,鼓励我以开放和积极的态度继续学习。

Iwould like to convey my heartfelt gratitude to you for teaching me what is responsibility. You helped me how to find the best place for myself and look forthe personal values. I remember you gave me a book as a present of the SpringFestival. You are the first teacher who gave me a present which I was moved fora long time.

我衷心的感谢你教会了我什么是责任。你帮我找到最适合自己的位置并和个人价值。我记得你曾给我一本书作为春节的礼物。你是第一个给我礼物的老师,这让我感动了很久。

Iwould further say that you gave me so good memories that I wish I could go backto that time again. It was you who encouraged me to overcome obstacles. It wasyou who cared about my emotions. I appreciate all you have done for me, whichmeant so much to me. I hope that this letter brings my best wishes to you and Ionce again thank you for giving me those precious memories of my life, which Ishall cherish forever.

我还想说你给了我这么美好的回忆,我希望我能再次回到那个时候。是你鼓励我克服困难。是你关心我的情绪。我很感激你为我所做的一切,这对我来说是很重要的。我希望这封能给你带去我最好的祝福,我再次感谢你给我的生活带来那些珍贵的回忆,我会永远珍惜它的。

Sincerely yours,

Yang

展开阅读全文

篇15:英语封信

全文共 364 字

+ 加入清单

When I grow up, Im going to do what I want to do. Im going to move

somewhere interesting. Paris sounds like a city that I could that enjoy. There

are lots of art exhibitions there. I want to be an artist . So how am I going to

do it? First, Imgoing to find a part-time job for a year or tow and save some

money. Then Im going to be a student at an art school in Paris.

展开阅读全文

篇16:英语封信

全文共 3433 字

+ 加入清单

There was once a little boy called Guy, and he was eight years old. He was

in third grade; one day when he was at school, he found out that tomorrow was

picture day, and so he had got to take a shower. And before he even got to think

about picture day, his teacher Mrs. Creature, said that they were having a

project, and it was all about their family.

The teacher said, “This project shall be today’s homework, and I want it to

be perfect for I am going to tell your parents if you don’t do it.” Suddenly

Guy’s sister Cally stood up and said, “Mrs. Creature, is it okay that I finish

it on class?” “Sure thing Cally;” answered Mrs. Creature smiling, “But there is

only a problem, it is that you must let your brother copy this report on your

paper so that you could help him; then you will have to do another report of

your own, or you’ll both fail!”

Cally and Guy apparently got home, and Cally said, “Mrs. Creature’s hates

me…” “Yeah, it’s hilarious!” shouted Guy, “Let me just copy your paper and we’re

done, okay?” “Ugh,” replied Cally; She reached her hand into her hand, and

pulled out a piece of paper; and said, “This goes over every bone in my delicate

body, but, careful; it’s hand written,” then Guy asked, “Is this gold ink

paper?” then Cally shouted at him and said, “Anything happened to this paper and

your family history ends right here pal!” and then she walked to her room.

Guy walked to the sofa and said, “My running is fast, I have nothing to

worry about it;” then suddenly his father came with a paper shredder in his

hands and said, “Hey Guy, check out my new paper shredder and…” He had barely

finished when suddenly; Guy threw Cally’s report into the shredder by accident,

and “azuowenz!” like that sound, Cally’s report was shredded. Guy called, “No!”

then his dad was ashamed and said, “Oh, I guess it isn’t a good thing to walk

around with this thing turned on;” and then he ran off with his legs behind his

butt.

Suddenly, Guy’s body shook, and he turned into Shezow. He went to Sheila,

his, or her, super computer, and said to her; “What’s wrong Sheila, I’m kind of

busy around here and…”

“Dude, or should I say Shezow, this isn’t about your own business; because

there is an emergency out there.

After a breath Sheila said to Guy, “Mega monkey is on the attack, and

according to me he should be back in time.” Then Guy said, “Road trip! Time

traveling!” then he hopped into the sheicel and drove off to time travel… He was

excited.

She drove off right away. After that, she found some of the pass few

Shezows. At last Sheila said to Shezow, “My scan is lining up like dynamite,

follow that flapper!” shouted Sheila. Shezow followed it just as Sheila said,

and found herself in the 1920s; “Wow, it looks like the 1920s,” said Maze, Guy’s

brother. Then Shezow zoomed into a tornado.

When she opened her eyes, she found herself in 1924, the Shezow in that

time saved her world from Mega monkey that had escaped not long before, and

Sheila then said, “Quick, to the beginning!” then she allowed Shezow to drive to

the beginning where they might save the day…

Shezow at last arrived at the beginning, and she stopped in time. At first

a dinosaur was chasing her and was very, very frightened. But the Shezow in that

time saved her, she was grateful; then she found her or his or Guy’s report

there at the beginning Shezow’s lair…

The next day at school, when Guy’s report was handed out, he got an A+; and

when Cally’s report was handed out, she got an A-…

展开阅读全文

篇17:感谢的一封信英语

全文共 1532 字

+ 加入清单

Thanks to my tutor professor ___, he wrote to a doctor of letters) are

careful meticulous, conscientious and meticulous style has always been my work

and study of the model; They described the teach and outside-the-box thinking

gives me endless inspiration.

Thank my small white teacher, this paper details and each data of each

experiment, cannot leave your careful guidance. And you, cheerful personality

and tolerant attitude, help me to quickly into our new laboratory

Thank my roommates, from distant home came to this strange city, is you and

I jointly maintain the brotherly feelings between each other, sustained by the

family harmonious dormitory. For four years, as if just yesterday. University

graduation thesis thank-you note thank-you notes. Four years, we have no red

face, no oral fight, not happen ago college to worry about any unhappy things.

Only in the future we rarely get together for a year again yuan hajek said meal,

it doesnt matter, go their own way, you take good care. I wish to U.S. C in

peace, left-behind fudan D, E&F happy, diversionary measure G the smooth,

also want to leave our bedroom H&I open happy heart. The time we share

together, Ill remember for a lifetime.

Thanks to my mom and dad, how much breakwater grass, tree back,

gratefulness, repay you, you always healthy and happy is my biggest wish.

In the paper the completed, my heart cant calm, from began to enter the

subject thesis is completed, how many respectable teachers, students, friends

gave me speechless help, here please accept my sincere thanks!

展开阅读全文

篇18:给校长的一封建议信英语

全文共 930 字

+ 加入清单

Dear Mr. President,

I am writing this letter to you to express my concern about the sports

facilities on campus. I have noticed that our university has very limited

resources in terms of opportunities to participate in sports, especially given

that the number of students on campus is increasing every year.

As we both know, sports are very important for the sound growth of young

people. If they have access to quality sports facilities, young people are able

to choose a healthier lifestyle, to boost self-esteem and confidence, and to

build a positive outlook and sense of achievement.

My proposal is to build a new sports area. It should be designed with

soccer players, basketball players, and ping-pong players in mind. It should

have a different section for each activity and be available to students all year

round. I believe such facilities will meet our sporting needs.

Thank you for your reading this letter.

Yours faithfully,

Li Ming

展开阅读全文

篇19:英语封信

全文共 547 字

+ 加入清单

I study at Beishan Primary School. I like my school very much. Our school

is small, but it’s very beautiful.

When you go into the school gate, you can see a big tree in the middle of

the small playground. If you turn left, you can see a playground. It’s our

little world. We often play games there. In our school, there are many trees.

They grow well. There are one buildings on the right side of the playground. We

have classes in the building.

This is our school, our second home. Do you like it? Welcome to our school!

You can see many lovely students.

展开阅读全文

篇20:致航天员的一封信主题征文

全文共 1070 字

+ 加入清单

亲爱的王亚平阿姨:

您好!见字如面,今有幸观看了您的“太空授课”。最与您相隔着的是400多公里,但我的心仿佛已随着神舟十三号飞船成功抵达天和空间站。

第一次见您,是在采访节目中。您在接受采访的时候提到选拔航天员的时候要学习60多门课,3年内您基本没有出过航天城大门,没有出门逛过一次街,桌上的台灯从来没有在晚上12点前熄灭过。听着一个个的数字,心如针刺,这3年堪比高三的学习生活啊。您还说,在神十期间,您当过太空老师。很多学生给您写过,信上说道:“请放心地把接力棒交给我,我一定会做得更好。”现在,很多给您写过信的同学已经成为了您的同事。“我感到很幸福。”您真挚的眼神中闪着光,心中某处柔软被击中。

还有一次,您谈到最具挑战性的训练是超重耐力训练。看着急速旋转的离心机,了解到航天员最大的过载需要承受8倍于自己体重的重量,但在训练过程中每一位候选人手边都有一个红色的暂停按钮,但从来没有人按下它。那一瞬间,我的梦想从为自己,为家庭升华至了为祖国,为世界。

今天遇见您,是在空间站直播课中。画面中的您面部浮肿,有些不自然,虽然知道这是微重力导致的血液上涌,但还是有些心疼。您拿着摄像头带领我们参观神十三组宇航员的生活区时,我观察到,您的睡眠区被家人的照片和喜爱的小物件所装扮起来。我忽然意识到在我们心中,宇航员是无所不能的钢铁人,是超人一般的存在。但我们却忘了,您们也是一个普通人,也是一个有血有肉,会哭会笑,有双亲儿女的人。您也是一个爱美,喜欢逛街,爱笑爱哭的女孩。

漂浮的水球,薄薄的水膜,跳动的心肌细胞,沸腾泡腾片。丰富多彩、神奇的物理现象让我充满了求知欲。为什么泡腾片在水球中产生的气泡不会破坏水球?为什么宇航员身上穿的“企鹅服”要装有那么多的拉绳?为什么在太空中观察到的心肌细胞可以跳动?在太空中喝水是什么感觉?……您给我们展示的新奇、陌生的景观,带领着我推开物理的大门。

为什么您一出舱就需要拿倒钩勾住栏杆?那是因为您女性的躯体恐怕不能像男性一般强壮有力,一时疏忽,抓不住栏杆很可能就飘至太空中了。为什么在执行舱外任务的时候您要一手紧抓栏杆,另一只手操作呢?还不是因为生理上的差异。即使是如此危险、不容疏忽的出舱任务,还是平时刻不容缓、磨炼意志的训练。您都扛过来了,并且在中国航天史上挥毫泼墨书写出浓墨重彩的一笔——中国航天史上第一次在太空行走的女性。

也许大家注意到的都是您光鲜亮丽地在太空执行有趣的实验,但我却看到了作为航天员,作为中国航天史上重要一员的您背地里付出的一切。

祝您在太空的出差之旅一切顺利,我们在祖国等您平安回家!

此致

敬礼!

展开阅读全文