高中英语评课稿(共)_高中英语评课稿

2020-02-27 其他范文 下载本文

高中英语评课稿(共)由刀豆文库小编整理,希望给你工作、学习、生活带来方便,猜你可能喜欢“高中英语评课稿”。

篇1:高中英语说课稿模板 材料一

高中英语说课稿模板

good afternoon, teachers, it’s my great pleasure to be here sharing my leon with you.the content of my leon is senior english book unit 1(a student of african wildlife/why not carry on the good work)i’ll be ready to begin this leon from five parts.analysis of the teaching material, the teaching methods, the studying methods, the teaching procedure, and blackboard design.first, let me talk the teaching material.part 1 teaching material: by studying of this unit, we’ll enable the students to know some great women and their achievement and what makes the great women succeful the knowledge of farming and dr yuan longping’ achievement and chemical farming and organic farming.charlie chaplin and his funny and encouraging humor people from different area have different body language and use the right body language to showing our feelings.theme park not only provide fun but also provide various knowledge and exciting experience.this leon not only teach the students to learn the related material about(1)the good character to be a succeful person(2)yuan longping’s scientific research spirit and attitudes toward life the disadvantage of using chemical fertilizers and how to increase production in organic farming.(3)charlie chaplin and his humor english jokes(4)different body language and the similarities in body language which make the others understand our feelings.(5)theme park but also learning ability in english.a: if can learn it well, it will be helpful to make the learn the rest of this unit well.b: it provides all-around practice about listening, speaking, reading and writing revolve around the topic, it is the expansion of this unit and give a space to use the language so it plays an important part in the english teaching in this unit.(as we know ,reading belongs to the input during the proce of the language learning.the input has great effect on output , such as speaking and writing.)according to the new standard curriculum and the syllabus(新课程标准和教学大纲), after studying the teaching material and analyzing the rule of children’s growing of mind, i think the teaching aims are the followings: 1.knowledge objects:(1)the students can hear, read, and use the main sentence patterns.(2)the students can understand the content of the leon:(3)the students can use the patterns to expre their thoughts in proper situation and learn how to describe people with adjective.ability objects: ability objects of this section are(1)to develop the ’ abilities of listening, speaking, reading and writing.especially speaking and writing ability.(2)to train the ’ ability of working in pairs.(4)to improve the ’ reading abilities ,especially their skimming and scanning ability.3.emotion objects: by reading a student of african wildlife /why not carry on the good work, students can learn from(1)jane goodall in at least two aspects: one is what is the human way to study animal;the other is that it was her great personality-universal love and mercy that made her succeful.lin qiao zhi in at least two aspects: one is what is the human way to help poor patients;the other is that it was her great personality-universal love and mercy that made her succeful.(2)dr yuan long ping his scientific research spirit and attitudes toward life this paage what is chemical and organic farming and their advantage and disadvantage.材料二

reading task who am i ?

一、说教材

1、说教材的地位及作用 who am i 出自人教版高中英语教科书第二册第三单元第一课时,本单元的话题是工厂技术,计算机的发展史和机器人。计算机对于高中生来说是较熟悉的一个话题,但“who am i”这篇阅读材料所选语言材料属于科普说明文,内容较为抽象,文章也有一些专业术语,对高一学生来说有一定的难度。但是这篇阅读材料以第一人称的拟人手法介绍了计算机发展演变的历史和计算机在各个领域的应用,这样拟人的手法使得文章读起来妙趣横生,抽象的专业知识介绍起来也浅显易懂。这篇文章是整个单元的重点,融汇了听、说、读、写语言知识点,同时在句子表达上运用到了现在完成时的被动语态,为下一个课时的语法教学作好了铺垫。

2、说教学目标

①知识目标

(1)、掌握单词和词组:

abacus.calculator.pc.laptop.pda.calculate.universal.simplify.sum.logical.logically.revolution.operator.technology.technological.artificial.intelligence.intelligent.solve.tube.total.web.application.finance.mobile.explore.anyhow.from„on.as a result.so„that„.(2)(掌握句型)

a.over time i have been changed quite a lot.b.first as a pc and then as a laptop ,i have been used in offices and homes sice the 1970s.c.over time my memory has developed so much that ,like an elephant ,i never forget any thing i have been told!d.since the 1970s many new applications have been found for me.e.i have also been put into robots and used to make mobile phones as well as help with medical operations.②能力目标

(1)通过阅读训练,培养学生略读(skim),查读(scan)以及获取信息能力。

(2)培养学生在阅读时从词的构成以及上下文猜测词意的能力。

(3)通过阅读,培养学生的听说读写能力,尤其是教会学生用第一人称按时间的先后顺序描述一件事。

③情感目标

通过学习本篇文章,了解计算机的发展历程及其在当今社会的广泛应用,培养学生的想象能力以及创新能力,激发学生热爱科学以及鼓励他们积极探索新科技发展的精神。

3、教学重难点

1、指导学生阅读以时间为顺序了解一件事的发展过程。

2、培养学生阅读时通过构词法以及看上下文猜测词义的能力。

二、说教法:

结合本课的教学目标及具体任务,我主要用以下教学方法: ①整体阅读教学法,让学生分别进行读前、读中、读后训练,由浅入深消化课文。②任务型教学法,让学生在教师指导下通过感知、体验、实践参与、合作等方式完成目标。

③开放性教学策略,如brainstorm role play.等

④因材施教法:根据学生程度,把课文难度适度降低。

三、说学法:

由于学生对计算机比较感兴趣及熟悉,教师在教学中要尽量发学生的主动学习积极性与合作精神。因此在教学中我主要引导学生用以下学法:

①五官并用法,如多动脑、动嘴、动手、动口。

②循序渐进:由浅入深地让学生掌握词汇、句型、课文内容。

③合作学习、小组讨论

四、说教学程序:

step ⅰ.warming up and leading in 1.以幻灯片的方式展开此部分warming up里有关计算机发展的七部图片,询问学生以下问题:

③which one can help me most in teaching english ?show students the sentence structures of giving opinions ,such as in my opinion ,i think „„

这部分设计让学生熟悉有关单词,熟悉作出决定及意见的句型,激发他们的学习兴趣 stepⅱ pre-readirg 1.ask the students to look at the title and the picture on p18 and gue : who am i ? what is the paage about ? 此任务能让学生通过标题、插图预测文章内容并调动学生学习的积极性,引发学生思考。step ⅲ.reading 1.skim the paage to check whether their predictions are right or not.2.scan the paage again ,and do exercise 3 in pre-reading part.3.让学生从文中找出这些信息并完成下面表格: 1642:.1822:the analytical machine was wade by charles babbage.:.1940s:.1970s:.now:.这样设计可以让学生从文章当中自主查找到所需要的信息;课文教学时教师可以让学生自由举手回答并填写以上问题,教师一边帮学生retell及校对,一边解释所涉及到各种不同类型的计算机名词,让学生由易到难掌握课文。

4、careful reading ask students to read the paage once more and fill out the chart of requirement 2 on p19 这部分需要学生精读课文并寻找相关具体信息,建议学生碰到生词时看下上文猜测词义。

stepⅳ listening and speaking

1、让学生一边听一边记下在什么时间、什么人发明了什么类型的计算机,听完录音让学生复述那些内容。

2.role play :叫学生以第一人称扮演不同时期的计算机。stepⅴ 拓展 1.再现最初的七副图片,询问学生:what’s next ?让学生展开自己的想象力,设计下一种计算机的模样与作用,让学生分组讨论并画出其样子。step ⅵ homework step ⅶ conclusion

五、说板书

unit 3 who am i ? 1822: the analytical machine was made by „ 1940s:„had grown as large as a room.本课所倡导的教学基本理念是:

1、面向全体学生,实施素质培养。

2、整体设计目标,优化学习方式,提高自主学习能力。

3、利用现代教育技术,拓宽学习和运用英语的渠道。

4、提供多种选择,适应个性需求。

教学反思:本课能调动学生的积极主动性,能较好地把听说读写融汇在一起训练学生的综合语言运用能力,但是由于学生层次不一,在说时可能一部分学生不能开口,教师在以后的教学中应该设计内容更符合不同层次的学生,比如让这些基础很差的学生先预习,熟悉课文单词。另外,教师也可在课后让学生自己上网查找计算机发展史。

材料三:

the earthquake(unit 4,book 1)说课稿

一、教材分析;

1、教材简析:

高一英语第四单元的话题是“unforgettable experiences”,整个单元的设计围绕这一话题展开听、说、读、写多种教学活动,内容涉及“谈论过去的经历”、“描述任人物、事件以及人的感觉”、“学会在一篇文章中用first, next, then ,finally来组织内容”等,让学生初步了解定语从句,学会使用关系代词who ,whom, whose, which, that 的用法。我上的这节课是本单元的课后阅读训练,它是继前面几个课时内容的延伸,单元教学内容中阅读部分安排了一篇描述洪水的文章,而这篇课文是描述地震的文章,结合目前时事,我想以此为载体让学生在完成阅读任务的基础上对地震的知识有更多的了解,所以设计了这一课时。

2、教学目标:(知识目标、能力目标、德育目标)

知识目标:学习描述地震灾害的常用语,能简单的描述地震的发生原因。

能力目标:(1)发展学生听、说、读、写的基本技能,提高阅读技巧,培养综合语言运用的能力;

(2)能利用上下文理解单词的含义,;

(3)能根据所读材料运用适当语言进行复述。

德育目标:通过本文的阅读让学生对地震有更多认识,加强自我保护。

确立教学目标的依据:

根据新课标要求,通过听、说、读、写四项基本语言技能的训练,使学生形成综合语言运

用能力,激发学生的学习兴趣,为真实语言交际打基础。此外,每一门课程都应该尽可能结合学科特点,把培养学生的情感融化到日常教育教学中。

3、重点与难点:

(1)重点:1.利用不同的任务训练skimming, scanning, careful reading等阅读微技能;

2.对地震知识的更多了解。(2)难点: 1。阅读技能的训练。4.教学辅助工具:

(1)收录机;(2)多媒体

二、教学流程:

1、新课导入

由前面的阅读文章的内容说起,那一场洪灾对于课文的主人公来说是一次难忘的经历,而我们可能会遇到各种各样的自然灾害,询问学生知道的灾害,展示图片让学生对此有所了解,然后展示一幅完美的城市图和灾后城市图进行比较,猜测发生变化的原因,从而引出课题,这样通过师生互动,激活主题,激发了学生的学习兴趣,对后面进行本文的阅读做了铺垫和准备。

2、新课的讲解

(1)不同层次的阅读技能训练;

首先是speed reading,a.skanning,快速默读全文,了解课文大意,回答简单问题为下一步找出细节作好铺垫。b.skimming,让学生进行跳跃式阅读,了解文章的结构,教师要求学生(work in pairs)给每一部分给一个标题,以此培养他们找寻文章或段落的主题句和

然后是careful reading,a,扫 读 :用多媒体展示针对每个部分提出不同问题,学生通过扫读来获取细节信息。在通读全文梳理文章,理解主题基础上,学生熟悉了文章内容,才能掌握地震的相关知识。在这一环节中,针对各部分设计了不同的任务,1,选择题,四个部分

2,根据上下文了解代词的指代内容,涉及全文。3,针对第二部分回答问题 4,针对第三部分让学生结合示意图用自己的语言复述地震的形成,这既是理解基础上的表达,也是对理解的检验。它可以训练学生的各种思维能力,培养学生各种语用能力,是激发学生创造性思维的有效教学方法。复述课文是培养学生用英语连贯表达的一种有效的训练手段,而且加深了学生对课文的理解,从而促进他们的口语交际能力和书面表达能力的发展。5,针对最后一部分提出一个开放性的问题进行讨论

b.朗读:让学生跟读录音,掌握正确的语音语调,从整体上把握课文结构并从中得到自己的感受。这也为下一步学生讨论做好铺垫。学生通过以上活动,从基本框架到细节信息把握住了这篇文章。

接下来的环节是通过多媒体展示的几幅图片让学生进行读后讨论。让学生对地震有更多认识

(2)、在情境中激思,培养创新思维:

在课文教学时,我采用多种思维训练法,培养学生的创新思维。根据教材的语言材料,巧设疑问,鼓励学生从不同方面,不同角度进行思维。

在careful reading的扫读中,每个部分的问题各不相同,任务都非常有针对性,训练了学生各项不同的能力,学生表现出极大的兴趣和参与热情。这激发了学生的好奇心,这样既可提高口语表达能力,又可提高学生的想像能力。所以教师在课堂上巧妙地适时设问,是对学生进行多种思维的训练,学生的思维创造性也因此得到充分发挥。

其次详细阅读之后,给学生提出一些讨论话题,是继教材内容之后的一个延伸,由此,以教材为载体我们更多的了解了地震的相关知识,而学生用英语进行讨论,也是对语言运用能力的培养。

3、作业的布置:(1)做课后练习三,了解地震的各个震级所带来的破坏完成句子,这一练习有两个目的,一方面更多的了解了地震,另一方面复习了定语从句的关系代词的用法。

(2)预习写作部分提出的问题,准备写一写汶川地震。

篇2:高中英语全英文说课稿模板 高中英语全英文说课稿模板

good afternoon, everyone, it’s my great pleasure to be here sharing my leon withyou.the content of my leon is senior english for china book1b unit 16 scientists at work.i’ll be ready to begin this leon from five parts.analysis of the teaching material, the teaching methods, the studying methods, the teaching procedure,and blackboard design.first, let me talk about the teaching material.part 1 teaching material: this unit is about science and scientists.by studying of this unit, we’ll enable the students to know the serious attitude towards science and develop the interest in science.at the same time ,let the students learn how to give instructions.this leon plays an important part in the english teaching in this unit.this is an important leon in book one.from this leon, it starts asking the to grasp contents of each paage.therefore, this leon is in the important position of the teaching material.if the can learn it well, it will be helpful to make the learn the rest of this unit.as we all know ,reading belongs to the input during the proce of the language learning.the input has great effect on output , such as speaking and writing.according to the new standard curriculum and the syllabus(新课程标准和教学

大纲), after studying the teaching material and analyzing the rule of children’s growing of mind,i think the teaching aims are the followings: 1.knowledge objects: a)the can hear, read, and use the main sentence patterns b)the can understand the content of the leon.c)the can use the patterns to expre their thoughts in the proper situation.2.ability objects:(1)to develop the ’ abilities of listening, speaking, reading and writing.(2)to train the ’ ability of working in pairs.(3)to improve the student’s reading ability, especially their skimming and scanning ability.3.emotion or moral objects: b)teach the what is “science”, put the moral education in the language study.well, how to achieve the teaching objects better, how to stre the important points and break through the difficult points? as is known to us all,the modern teaching demands the teacher should improve the students’ ability.a good teaching method requires that the teacher should have the leading effects.according to the analysis of the teaching material and the students’learning background ,i will use the following methods.part 2 teaching methods: 篇3:高中英语8分钟全英文说课稿模板(亲身使用过)interpretation now i will write the topic of my leon on the blackboard, ok?------(板书课题)teaching material(part 1)

the content of my leon is new senior english for china book___ unit____________________.this unit is about____________________(topics).by studying of this unit, we’ll enable students to know _________________________.it starts________________(structures).therefore, this leon is in the important position of this unit.if the can master it well, it will be helpful for them to learn the rest of this unit(or the book).after studying the teaching material, the teaching aims are the followings: 1.knowledge objects(知识目标:词汇,句型,语法,课文内容)(1)the can understand the new words, phrases, sentence patterns, and the __________(grammar)(2)the can understand the content of this leon.(3)the can use the patterns or grammar roles to expre their thoughts in the proper situation..2.ability objects(技能目标:听,说,读,写,学习方法)(1)to develop the ’ abilities of listening, speaking, reading and writing(2)to develop the ’ abilities of working in groups.(3)to improve the ’ ability of reading, especially their skimming and scanning ability.3.emotional objects(情感目标:兴趣,自信,话题,爱国,国际视野)and to help the to understand__________________(emotion).in my opinion, the important points are the key words, phrases, sentence patterns and the grammar, because they are the important materials in a language.the difficult points are reading skills especially skimming and scanning, because it is a long way to students to understand.)part 2 analysis of students a good habit of learning.they have a definite english learning motivation and attitude.while their knowledge ability is different.their attention can be scattered easily because of some burdens or some other subjects.so catching the students` attention is the key of this leon.part 3 teaching methods in my opinion, the instructional aims of learning english in middle school is to develop the students’ abilities of listening, speaking, reading, writing.for achieving these aims, i will use the following methods: 2.total situational action(情景教学)it is a “scene-activity” teaching method , it offers real scene between the teacher and the.its sound and picture, it can develop the creativity in learning english.1 part 4 studying methods part 5 teaching procedure step 1.lead-in.(__4__min)and then ask them some questions about this topic in their daily lives.finally, i will introduce the topic of this leon.the purpose of my design is to catch ’ attention about the leon.step 2.reading and listening(__13__min)1.skimming task: read the material quickly to find out the right information about the question i asked.2.scanning task: read the material carefully and listen to the tape to find out how many parts in this text, and what`s the topic for each one.the purpose of my design: is to develop the students` ability of reading and listening.step 3.presentation and practice(__20__min)intensive reading and translate the text part by part.interpret the important information to the students.then, group work.set a certain situation, and let students work in groups to discu and make a dialogue using the words they learned.the purpose of my design is develop the ability of working in groups and how to use the language in proper situation.step 4.conclosion(__5__min)summarize the whole leon and check the knowledge they learned.step 5.homework(__3__min)1.finish the exercise book of this leon.2.memorize the new words or phrases, and recite some important sentences of this text.the purpose of my design: is that homework is important and neceary for students to master the knowledge they learned.it will check whether the achieve the teaching aims.part6 blackboard design on the top of the blackboard, i can write the topic of this le.on the left, i will set a serious of clues of text on it.and on the right, i will write some key words or phrases to help students to memorize.the purpose of my design: is to help the students to understand the reading material better.and then, develop the students` ability of writing.ok!that is my leon.thank you very much!2 篇4:高中英语评课稿

高中英语评课稿 “春蚕到死丝方尽,蜡炬成灰泪始干,”我只能借用古人的这一句话来评价我们今天的老师们。因为我非常感动于本届优质课竞赛活动中,湖州二中的多媒体大教室挤都挤不下来听课的老师们这样一个感动人心的热闹场面。听课是为了站在学生的角度来观摩每一节优质课的优点,听课也是为了站在教师的角度来进一步学习,反思和改进今后日常课堂教学。此刻我又来到湖州,来到教研室评课,更是感谢菱湖中学的老师们,特别是周志远老师,把这个评课的机会让给了我,敦促我从教学理论的层面,对这六节优质课私下里进行庖丁解牛式的拆分,审视和重组,现在我主要选取湖二中陆霞静老师的课堂进行点评。

上课前,播放的是快节奏声音大的音乐,让到场的每位老师特别是同学马上振奋起精神,预感到这将是一堂充满激情挑战和充实的课堂,接着她就高中生的日常生活发问,建议大家参加各种英语活动,包括口语竞赛,然后告诉大家,今天是大家参与speech 的一个好机会,希望每个同学积极参与,紧接着一个short video.the speaker is giving a speech loudly and clearly that we are all looking forward to a much better life with the beautiful rainbow together with us.we don’t inherit the beautiful rainbow from our parents, but we do borrow it from our children and children’s children.这一个短片告诉大家两层含义: 为了孩子们,以及孩子们的孩子们的未来,谁能忍心破坏这个唯一的地球呢?同时,我们的希望是为了你们,孩子们甚至是孩子们的孩子们有更高的素质更美好的生活。接着陆霞静老师给出了自己课前有心拍下的几张生活照片:湖二中校园有垃圾的照片,教室里人走灯亮的照片,空调在角落里的照片,大家说开了几度----16/18度?我自己是开在26-27度,我们大家从不认为相差一度有什么关系,但是如果人人都这么想,那么整个地球的温度就恐怕不是上升一度的问题。评委老师们,我想要说的是,一个良好的开端就是成功的一半,设计以这样的方式打开一堂公开课,这个教师起码具备的素质有: 热爱学生,平时注意观察他们的生活点滴和学习现状;热爱教学,不仅从学生的层面和教师的层面,而且是根据课堂教学实际来缜密地递进式设计课堂;能把多个层面的知识有条不紊地结合使用,不动生色地吸引和勾起了每个人的好奇心。这六

分钟,我认为是难能可贵的也是精心设计的。接下来的设计也是步步为营,层层递进,课堂内容不局限于教材,大胆走出教材高于教材.大量使用自己的思路,在讲究质量的同时,上出自己的特色.为本单元的阅读课做好铺垫.一摄氏度二摄氏度三摄氏度四摄氏度五摄氏度,地球的升温意味着什么灾难的降临?放一个简洁的短片,让同学一一站起来说出专家的统计和预测,那么我们该怎么阻止全球升温,同学们有什么建议,请大家分组讨论。有同学说”我们要用太阳能,我们要骑自行车?” a small step by everyone of us may be a big step for the earth and human being’s future.our paying attention to every small daily activity can really make a big difference.陆霞静老师一边引导学生实现speaking的教学任务,一边快速清晰流利地用英语引导着学生的思维。这种探究教学加任务教学就是在教师的启发诱导下,以学生独立自主学习和合作讨论为前提,以现行教材为基本探究内容,以学生周围世界和生活实际为参照对象,为学生提供充分自由表达,质疑,探究,讨论问题的机会,让学生通过个人,小组,集体等多种解难释疑尝试活动,将自己所学知识应用于解决实际问题。我认为这个环节具有科学性,理性和实效性.她没有束缚自己和学生的手脚,而是努力在挖掘蕴含在教材中的教育资源,让它能被学生掌握,消化,吸收并转化为内在学习动力.the more electrical appliances you buy, the better life it will be!!do you agree with it or don’t agree with it? 又一个设计环节的惊喜和创新,是该老师应用高中同学们的青春激情特质,把这环节设计成电视上每年都有直播的高中生或大学生辩论赛,支持方和反对方各抒己见,各执一词,而且都各自有话好说并且说的头头是道。生活里不完美和无法下定论的东西实在太多,所以,这样的设计不仅仅只是一个亮点,学生通过参与辩论可以掌握正方反方的观点,同时也懂得形成自己独特观点的重要性。“学到用时方恨少”,不仅是当时每个学生在这个环节的感受,我想也是我们每个听课老师当时真实贴切的感受。一个才三年教龄的新老师,一个始终露着坦诚笑脸的我们眼中的小女孩老师,她征服的恰恰是实实在在的感动,是我们每个听课老师心悦诚服的动容和心服口服的无奈。

记得我来听课前一天,我去找我校的钟老师帮我代一节课,我既认真又属于闲聊的说:”姜还是老的辣,你出的第三单元的学案,教案以及单元测验的内容,我和备课组长汤小琴老师一致认为,“真的是很好”。她说:谢谢你们的赞同,其实我一直都在向年轻老师们学,甚至向自己班级的学生们承认,许多同学到高三时,英语科高考分数比我的分数肯定要高.你们一定会超过我,因为我根本连一本都考不上。除了英语科目,其他科目我都考不出来了.她还给我分析了高二年段平行班英语老师的特点和学生成绩的内在关联。近四五年来,我内心也一直在感慨,小年轻老师们那股钻研劲和青出于蓝胜于蓝的教学素质,好多是我们自己高中带出来的学生加老师加同事加竞争对手。包括今天的陆霞静老师,是我高中带了两年的2000届毕业生。所以,听完她的课到昨晚上我在写这个评课稿的时候,我真的感慨万千内心难以平静,我觉得此刻评委们,你们不是在给我一个十分钟的时间来评论某个或几个老师,作为一个好老师和一堂优质课所应具有和不断完善的方方面面;你们是在给我一片坦诚,真实地让我再一次抚摸一个个生动的教师们师魂.点点滴滴都是感动和珍藏。

陆霞静老师的这节课,可以说趋向完美,如果要有什么改进的话,我提两点和一个希望:

一、课内和学生的互动方式有些单调,基本采用师生一问一答,或学生一一回答式。是否可以交叉使用集体回答,学生相互问答,老师一问学生多答等多种形式。让整个课堂不断掀起高潮,体验到成功的激情并膨胀起来.二、回家作业给市长写一封建议信,是否可以象万顷老师一样,给同学们一个网址发上去。或者告诉大家,老师根据你们的作业,要收集合理的并有可行性的建议给市长办公室亲自投递过去。想说的一个希望是,希望小陆老师的气质能够更具教师的老成气一点。

总之,六位老师的课都有很多让我触动的教学优点,他们各自独特的教学风格,留给了我深刻的印象。。。

《高中英语评课稿(共).docx》
将本文的Word文档下载,方便收藏和打印
推荐度:
高中英语评课稿(共)
点击下载文档
相关专题 高中英语评课稿 高中英语 评课 高中英语评课稿 高中英语 评课
[其他范文]相关推荐
    [其他范文]热门文章
      下载全文