-
直线的两点式方程教学设计人教A版高中数学选择性必修第一册
解析：①过原点时，直线方程为y＝－34x.②直线不过原点时，可设其方程为xa＋ya＝1，∴4a＋－3a＝1，∴a＝1.∴直线方程为x＋y－1＝0.所以这样的直线有2条，选B.答案：B4.若点P(3,m)在过点A(2,-1),B(-3,4)的直线上,则m= . 解析:由两点式方程得,过A,B两点的直线方程为(y"-(-" 1")" )/(4"-(-" 1")" )=(x"-" 2)/("-" 3"-" 2),即x+y-1=0.又点P(3,m)在直线AB上,所以3+m-1=0,得m=-2.答案:-2 5.直线ax+by=1(ab≠0)与两坐标轴围成的三角形的面积是 . 解析:直线在两坐标轴上的截距分别为1/a 与 1/b,所以直线与坐标轴围成的三角形面积为1/(2"|" ab"|" ).答案:1/(2"|" ab"|" )6.已知三角形的三个顶点A(0,4)，B(－2,6)，C(－8,0)．(1)求三角形三边所在直线的方程；(2)求AC边上的垂直平分线的方程．解析(1)直线AB的方程为y－46－4＝x－0－2－0，整理得x＋y－4＝0；直线BC的方程为y－06－0＝x＋8－2＋8，整理得x－y＋8＝0；由截距式可知，直线AC的方程为x－8＋y4＝1，整理得x－2y＋8＝0.(2)线段AC的中点为D(－4,2)，直线AC的斜率为12，则AC边上的垂直平分线的斜率为－2，所以AC边的垂直平分线的方程为y－2＝－2(x＋4)，整理得2x＋y＋6＝0.
圆的标准方程教学设计人教A版高中数学选择性必修第一册
(1)几何法它是利用图形的几何性质,如圆的性质等,直接求出圆的圆心和半径,代入圆的标准方程,从而得到圆的标准方程.(2)待定系数法由三个独立条件得到三个方程,解方程组以得到圆的标准方程中三个参数,从而确定圆的标准方程.它是求圆的方程最常用的方法,一般步骤是:①设——设所求圆的方程为(x-a)2+(y-b)2=r2;②列——由已知条件,建立关于a,b,r的方程组;③解——解方程组,求出a,b,r;④代——将a,b,r代入所设方程,得所求圆的方程.跟踪训练1．已知△ABC的三个顶点坐标分别为A(0,5)，B(1，－2)，C(－3，－4)，求该三角形的外接圆的方程．[解] 法一：设所求圆的标准方程为(x－a)2＋(y－b)2＝r2.因为A(0,5)，B(1,－2)，C(－3,－4)都在圆上，所以它们的坐标都满足圆的标准方程，于是有?0－a?2＋?5－b?2＝r2，?1－a?2＋?－2－b?2＝r2，?－3－a?2＋?－4－b?2＝r2.解得a＝－3，b＝1，r＝5.故所求圆的标准方程是(x＋3)2＋(y－1)2＝25.
直线与圆的位置关系教学设计人教A版高中数学选择性必修第一册
切线方程的求法1.求过圆上一点P(x0,y0)的圆的切线方程:先求切点与圆心连线的斜率k,则由垂直关系,切线斜率为-1/k,由点斜式方程可求得切线方程.若k=0或斜率不存在,则由图形可直接得切线方程为y=b或x=a.2.求过圆外一点P(x0,y0)的圆的切线时,常用几何方法求解设切线方程为y-y0=k(x-x0),即kx-y-kx0+y0=0,由圆心到直线的距离等于半径,可求得k,进而切线方程即可求出.但要注意,此时的切线有两条,若求出的k值只有一个时,则另一条切线的斜率一定不存在,可通过数形结合求出.例3 求直线l:3x+y-6=0被圆C:x2+y2-2y-4=0截得的弦长.思路分析:解法一求出直线与圆的交点坐标,解法二利用弦长公式,解法三利用几何法作出直角三角形,三种解法都可求得弦长.解法一由{■(3x+y"-" 6=0"," @x^2+y^2 "-" 2y"-" 4=0"," )┤得交点A(1,3),B(2,0),故弦AB的长为|AB|=√("(" 2"-" 1")" ^2+"(" 0"-" 3")" ^2 )=√10.解法二由{■(3x+y"-" 6=0"," @x^2+y^2 "-" 2y"-" 4=0"," )┤消去y,得x2-3x+2=0.设两交点A,B的坐标分别为A(x1,y1),B(x2,y2),则由根与系数的关系,得x1+x2=3,x1·x2=2.∴|AB|=√("(" x_2 "-" x_1 ")" ^2+"(" y_2 "-" y_1 ")" ^2 )=√(10"[(" x_1+x_2 ")" ^2 "-" 4x_1 x_2 "]" ┴" " )=√(10×"(" 3^2 "-" 4×2")" )=√10,即弦AB的长为√10.解法三圆C:x2+y2-2y-4=0可化为x2+(y-1)2=5,其圆心坐标(0,1),半径r=√5,点(0,1)到直线l的距离为d=("|" 3×0+1"-" 6"|" )/√(3^2+1^2 )=√10/2,所以半弦长为("|" AB"|" )/2=√(r^2 "-" d^2 )=√("(" √5 ")" ^2 "-" (√10/2) ^2 )=√10/2,所以弦长|AB|=√10.
新人教版高中英语必修3Unit 5 The Value of Money-Reading and Thinking教学设计一
Everybody wants to get wealth.In today’s material world,making money or becoming wealthy symbolizes a person’s success and capability. Many people just make every effort, pay any price to attain greater wealth. With money,they can buy nice, large apartments in nice neighborhood. With money they can own luxurious cars. Wealth seems to bring all happiness in life.But is wealth the only road to happiness? Not really. There are many things in the world, which are beyond the means of money, such as friendship, love, health and knowledge. People are so preoccupied with struggling for money that they have no time or would not take the time to form or maintain friendship. What happiness can they feel living as lonely miserable creatures without love or friends in the world even if they accumulate tremendous wealth?In my opinion, people can’t do anything without money, but money is not everything. What money will bring you depends on your personal belief and goal in life. If you are kind enough to help others, especially the poor, money is a good thing to you. With it, you can do much more for the benefit of people and your country, and it will add to your own happiness. If you want money just for your own needs, you’ll never be satisfied or happy. In a word,you should have money spent for more people. Only then can money be the source of your happiness.Step 8 Homework4 students in a group, one acts Roderick, one Oliver, one servant and the fourth one acts Henry Adams, then listen to the tape, pay more attention to the difference between American English and British English in pronunciation, stress, tone.
新人教版高中英语必修3Unit 4 Space Exploration-Reading For Writing教学设计一
另一方面，其余的人反对这个计划，因为它可能会导致一些不好的影响。7.I hold the belief that space exploration not only enable us to understand how the universe began but also help us survived well into the future.我坚信探索太空不仅能够使我们了解宇宙的起源而且能够帮助我们更好地走进未来。8.I think we should spend more time and money exploring space so as to provide new and better solutions to people's shortterm and longterm problems.为了给人类的短期和长期问题提供更新和更好的解决方法，我认为我们应该花更多的时间和金钱来探索太空。9．From my point of view，it is wrong of young people to depend on their telephones too much，which may do harm to both their physical and mental health.在我看来，年轻人过度依赖手机是不对的，因为它们可能会对他们的身心健康都有害。最近你班同学就“人类是否应该进行宇宙探索”这个问题进行了激烈的讨论。有人认为，探索宇宙不仅让人类更好地了解宇宙的发展，还可以用来指导农业生产，以及把一些探索太空的高新技术用于现实生活；也有一些人认为探索太空花掉了大量的人力物力；影响了人们的生活水平。请你根据以下情况写一篇报告并发表自己的观点。注意：1.写作内容应包括以上全部要点，可适当发挥，使上下文连贯；
新人教版高中英语必修3Unit 1 Festivals and Celebrations-Reading for Writing教学设计一
The topic of this part is “Write about your festival experience”.During the Listening and Speaking and Talking, students are just asked to say out their festival experiences such as the Spring Festival, Mid-autumn Day, but this part students will be asked to write down their own festival experiences. During the reading part, it introduces the Naadam Festival in Inner Mongolia Autonomous Region, which can give students a good example to imitate. Students not only learn the festival, but touch and feel the Inner Mongolian’s character, the spirit and cultural atmosphere, which can help students form the cultural awareness and learn to enjoy and value the diversity of Chinese culture.Concretely, the dairy tells the experience that the author spent the Naadam Festival in Inner Mongolia Autonomous Region with his/her friend. The structure is clear. In the opening paragraph, it introduces the topic of the Naadam Festival and the whole feeling. Then it introduces the items of the festival like the ceremony, wrestling and horse racing. Finally, it summarizes this experience. Because this part is a travel journal, we must guide students pay more attention to these details: 1. use the first person. 2. use the past tense to tell the past thing and use the present or future tense to describe the scenery. 3. use the timeline to tell the development. 4. be careful for the author’s psychology, emotion and feeling, etc.1. Read quickly to get main idea; read carefully to get the detailed information about Naadam Festival.2. Learn the structure of the reading article and language.3. Write an article about a festival experience4. Learn to use the psychology, emotions and feeling in the writing.1. Write an article about a festival experience.2. Use the structure of the reading article and language.
新人教版高中英语必修3Unit 4 Space Exploration-Listening&Speaking&Talking教学设计一
Listening and Speaking introduces the topic of “talking about how to become an astronaut”. This period is aimed to inform students some details about the requirements of being an astronaut. Students can be motivated and inspired by the astronauts. Teachers ought to encourage students to learn from them and let them aim high and dream big.Listening and Talking introduces the theme of "talk about life in space". This part also informs students more details about life in space and can inspire students to be curious about this job. 1. Guide students to listen for numbers concerning dates, years and ages etc2. Cultivate students' ability to talk about how to become an astronaut and life in space ; 3. Instruct students to use functional sentences of the dialogue such as “ first of all, I am not sure, so what might be .. I guess.. I wonder…I am curious…)appropriately.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to become a qualified astronaut and describe the life in space.Part 1: Listening and SpeakingStep 1: Lead inPredictionThe teacher can ask students to predict what the listening text is about by looking at the pictures.About how to become an astronaut./the requirements of an astronautStep 2: Then, play the radio which is about an interview a. And after finishing listening for the first time, the students need to solve the following tasks.
新人教版高中英语必修3Unit 4 Space Exploration-Reading and Thinking教学设计一
Q4: What is the function of the International exploration ?Having astronauts from different countries on boardQ5: What can you learn from Para 4 ?China has made great achievements in exploring spaceQ6: What is the attitude to the space exploration ?SupportiveStep 6 Post reading---RetellPeople have always wanted to learn more about space. Before the mid-20th century, most people felt (1)_________ (travel) into space was an impossible dream. However, (2)____ the help of scientists, peoplesucceeded in realizing their dream (3) _________ (explore) space. On 4 October 1957, the Sputnik 1 satellite (4) ____________(launch) by the USSR. (5) ________________ scientists try to make sure nothing goes wrong, accidents can still happen. These disasters made everyone(6)___________(disappoint), but people still believe in the importance of (7) ________(carry) on space exploration. In 2003, China became the third country to (8)_____________ (independent) send humans into space. Then Shenzhou 6 and 7 completed (9)____ second manned orbit and the first Chinese spacewalk. In spite of the difficulties, scientists hope future (10)__________ (discovery) will not only enable us to understand the universe but also help us survive well into the future.Answers: 1. travelling 2. with 3. to explore 4. was launched 5. Although6. disappointed 7. carrying 8. independently 9. a 10. discoveriesStep 6 Post reading---Critical thinkingQ1: What do you think of the space exploration ? I think it is beneficial to us. Through further study of space, people will make full use of it in the future, such as the space experiments by Wang Yaping in Tian Gong 1.Q2: If you are determined to be an astronaut, what should you prepare at present ?First of all, I should study hard to get a related college degree. Besides, I must keep mental and physical healthy.Step 7. HomeworkTry to summarize the structure of the article by a mind map.
新人教版高中英语必修3Unit 5 the value of money-Reading For Writing教学设计一
【参考范文】Narrator：(Henry is smiling as he leaves the restaurant. As he is walking down the street, he sees a sign for a place that cuts hair. He decides to get it cut. )H＝Henry；B＝Barber；R＝rude manH：Good afternoon, I'd like to get a cut, if I may. (The barber looks at Henry's hair and continues cutting another man's hair. )Er, I'd really like a haircut. As you can see it's much too long. B：(in a rude manner) Yes, I can see that. Indeed, I can. H：Fine, well I'll have a seat then. (He sits in one of the barber's chairs. The barber turns to look at Henry. )B：It's quite expensive here, you know！Are you sure you can afford it?H：Yes. I think so. (In comes the rude man. )R：Hey you there. I need a haircut quickly. Can you do me straightaway?B：All right, then, get in the chair and I'll see what I can do. R：Thank you. (sits down in one of the barber's chairs)H：Excuse me, but I was here first. Aren't you going to do my hair first?B：This man's in a hurry. H：Well so am I！I insist that you cut my hair first. B：OK, but I'll have to be quick. This gentleman is waiting. H：Thank you. (They both become quiet. After his hair is cut, the barber tells Henry how much he must pay. Henry shows the barber the bank note. )B：Why, Mr . . . (looks shocked)H：Adams. Henry Adams. I'm sorry, I don't have any change. R：You're that Mr Adams! Well，I'm glad I waited or I might never have known it was you. B：Why, Mr Adams, please don't worry！(wearing a big smile) Nothing to worry about！Nothing at all!Please come back any time, even if you only need too little hairs cut！It will be my honour to serve you!
人教版高中政治必修3第一课文化与社会精品教案
(2)历史课本中历朝历代的文化发展。(3)政治生活中关于综合国力竞争的相关知识。(4)了解文化产业的发展，深入体会知识经济、文化经济现象。五、【方法点津】：(1)坚持理论联系实际的方法，感悟文化现象，理解文化内涵，分析文化的作用，增强文化学习的自觉性。(2)自学探究。以课本的简单提示为线索，深入探究文化与经济、政治的相互交融，探究文化在综合国力竞争中的地位和作用。(3)集体讨论。针对当前国际竞争的实质，探讨我国应如何发展文化产业、发展文化生产力、增强文化竞争力；讨沦为更好地应对文化竞争，作为中学生目前应做好哪些准备。六、【课文导语】：文化，一个我们十分熟悉的词汇。然而“熟知并非真知”。有人说，文化是知识；有人说，文化是艺术。究竟什么是“文化”?只要在社会生活中细细体味，我们就能真切地感悟“文化”的内涵与文化的力量。
部编人教版六年级下册《文言文二则》说课稿（二）
3.教学要求：知识能力训练点：学生通过教师引导以及小组自主合作，能根据课后注释疏通全文，了解故事内容。能有感情地朗读课文，背诵课文，做到正确、节奏停顿得当、抑扬顿挫，从反复诵读中初步感悟文言文中特殊的语言现象。过程方法引导点：通过教师引导，学生自悟自得，初步了解文言文学习的方法。（根据注释、联系上下文读通、读懂、熟读成诵。）情感态度渗透点：学生能从文中体会到做事必须专心致志，不可三心二意的道理。能从课内外延伸结合中进一步了解我国辉煌灿烂的古代文化，增加学生学习语文的兴趣，全面提高学生语文综合素养。4.教学重难点：古文与现代白话文相比，在用词造句上截然不同，能否正确地断句，流利地朗读，是首先遇到的困难。因此要把指导学生朗读和背诵作为本课教学重点。从理解课文方面看，难点在于让学生参考课后注释读懂每句话的意思，整体感知课文内容，所以要将此点作为难点来突破。由此可见，两者相辅相成，互相渗透，而利用CAI课件为学生提供形象生动的画面，创设情境加强对学生朗读的指导是突破本课教学重难点的关键。
部编版语文八年级下册《大自然的语言》说课稿
二、教学目标简介根据教材特点以及八年级学生的知识基础和心理发展水平，我们组把本课的教学目标定为：1、知识与能力目标：（1）学会按要求筛选相关信息并概括文章要点，了解物候的有关知识。新课标中强调阅读教学要重视培养学生的默读能力，能够在通读全文的基础上理清思路，理解文章主要内容。这个目标的设定就是基于此。（2）体会科普说明文语言具体生动、形象、准确的特点，增强语言感悟力。为了在教学过程中实现这一目标，我们采用把词典中有关物候的解释与课文内容进行比较，初步感知本文语言特色，再让学生找出课文中具有生动、形象、准确的特点语句，进行自主品味分析领悟，而后全班交流，朗读感受等方法步骤。
部编版三年级下册语文口语交际《劝告》说课稿
统编教材语文三年级下册第七单元口语交际 《劝说》说课稿 今日，我说课的题目是统编教材小学语文三年级下册第七单元口语交际《劝说》。我主要从以下六个方面进展说课，一、说教材，二、说学情，三、说教学目标，四、说教学过程，五、说板书设计，六、说教学反思。 一、说教材 “劝说”是日常人际交往中常用的沟通方式，也是现代公民现实生活的需要。本课教材由三局部组成。 第一局部是一幅情境图，一个同学坐在楼梯扶手上往下滑。通过泡泡图里三个同学的不同劝说，引发学生思索并争论：你觉得那个同学更有可能承受谁的劝说？为什么？在比拟中帮忙学生感知、理解劝说的要领。
部编版语文八年级下册《诗经》二首 说课稿
一、说教材： 《〈诗经〉两首》是初中语文教材8年级下册第3单元的课文，单元教学重点旨在让学生了解古代诗歌的发展进程、思想感情及其艺术效果，提高学生的诗歌鉴赏能力。本次课将要学习的《关雎》和《蒹葭》两首诗都是诗经的名篇，两首诗在主题内容上是相似的，情感基调是相近的，同时在艺术手法方面也都运用了重章叠唱和赋比兴的方式。 2、教学目标根据本课特点，现将教学目标拟订如下：⑴知识目标：了解《诗经》的基本常识，体会赋、比、兴的艺术手法，掌握四言诗的诵读节拍。⑵能力目标：培养学生结合注释，读懂诗作的能力。背诵课文，培养和提高学生准确把握作品的艺术形象和思想感情的能力。⑶情感目标：使学生了解我国古代劳动人民对真挚爱情的向往，陶冶高尚的情操。
部编版语文八年级下册《大雁归来》说课稿
(三)阅读课文，整体感知。安排学生自由朗读课文，想想作者对大雁作了那些描写，勾出相关句子，想一想作者从大雁身上找到了那些“失去的东西”?这是在让学生充分发挥自己的个体作用，然后又安排四人小组讨论全班交流，意在合作探求，以便进一步领会所学的知识，最后教师利用多媒体展示参考内容，使学生进一步完整地掌握所学的知识。通过自己学、小组学、教师展示点拨，学困生也很容易地掌握所学知识，优生就更牢固地掌握了所学的知识。这样学生们对大雁的特点就有了较多了解，明白作者从大雁身上找回了什么，从中受到感悟。(三)精读课文，品味语言特点教师指导学生朗读一些优美的句子，指导学生从内容、修辞手法、说明方法、等方面去品味语言，利用多媒体来展示例句，加深学生印象，然后安排学生自己先找出课文中自己认为写的好的句子进行品味，然后四人小组讨论交流，最后全班交流，让学生资源共享。活动中我鼓励学生充分发表自己的观点，适时加以点拨，以此突破教学重难点。
部编版语文八年级下册《庄子》二则 说课稿
一、说教材：《北冥有鱼》是庄子的作品，文本通过丰富的想象和生动的比喻，为我们揭示了庄子思想的精髓：逍遥游。这篇课文是初中语文八年级下册第六单元的第一篇文章，属于讲读课文。二、说目标：根据《全日制普通中学语文教学大纲》规定：高中生“要诵读古典诗词和浅易文言文，理解一定数量的名篇”。据此，我设置了一课时内容，确立了如下教学目标：（一）知识和能力目标：1、积累文言知识，掌握重点的实虚词、句式、词类活用等文言现象。2、理解《北冥有鱼》语言特点和写作方法。（二）能力目标：诵读课文，在了解文章大意的基础上体味作者的思想感情。（三）德育目标：了解庄子及《北冥有鱼》的基本哲学思想，并且辩证的看待这种思想。
部编版语文八年级下册《安塞腰鼓》说课稿
1．教学内容《安塞腰鼓》是一篇具有诗意美的散文，文章以铿锵磅礴的语言，张扬激荡的句式，瑰丽奇伟的想象，急促暴烈的节奏，用一个个宛如鼓槌的汉字，在那天地之间，雄浑厚重的黄土高原之上，为我们鼓荡起一场惊心动魄、惊天动地的安塞腰鼓，那生命滔滔的激流，仿佛汹涌的黄河夺路而出。展现了我们中华民族生生不息、激越澎湃的活力。基于这个特点，这篇课文的教学主要内容是品味铿锵语句传达的勃发的生命激情，咏叹出的高原生命的热烈颂歌，民族魂魄的诗性礼赞，激发学生对人生的思考。2．教材的地位、作用新课标在实施目标中明确指出，要求学生吸收民族文化智慧，吸取人类优秀文化的营养。《安塞腰鼓》是义务教育新课程标准实验教科书语文七年级下册第四单元的第二篇课文。本单元主要是通过体味作者对生活中艺术的体验和感悟以及由此而触发的对人生的思考和认识，使学生在学习中进一步认识生命的力量和人生的价值，提高学生的素养，为今后学生阅读、欣赏、审美鉴赏打下基础。《安塞腰鼓》这篇散文充分展示了我中华文化的丰厚博大，充盈着生命的渲泄与活力，具有丰富的人文内涵，对学生精神的影响是深广的。
部编版语文八年级下册《灯笼》说课稿
主旨归纳本文以散文的自由笔法，抒写了作者关于灯笼的一些记忆，往昔经历、乡情民俗、诗词典故，从不同方面表达了灯笼对于作者乃至民族的重要意义。激发了作者的爱国情怀，同时表达了对时局的担忧和对未来的期望。重难导悟1.结合全文，简析作者喜爱灯笼的原因是什么？①灯笼寄托着祖父、母亲等亲人的慈爱和牵挂，也寄托着作者对亲人的感激之情；②许多乡情民俗与灯笼结下太多的缘分，给作者留下很多美好的回忆；③灯笼能为夜行人指路，温暖他人；④记录、传承着家族历史；⑤引发作者联想起古代将领挑灯看剑，抗击敌人的情景，激发爱国热情。2.文章结尾一段所表现的作者的观点态度是什么？请结合文章，进行分析并评价。作者热烈赞颂古代将军塞外点兵，挑灯看剑，英勇杀敌的气概；他们激发了作者的爱国情怀，作者热切希望冲上前线，奋勇杀敌，打击日寇；同时表达了对时局的担忧和对未来的期望，希望有更强大的力量，有更具凝聚力的精神，团结抗战，打败敌人，保卫好自己的家园。作者的爱国情怀值得肯定，这种情感在我们今天也是不可缺少的。
部编版语文八年级下册《登勃朗峰》说课稿
马克·吐温(1835－1910)，美国幽默大师、小说家，19世纪后期美国现实主义文学的杰出代表之一。作品风格以幽默和讽刺为主，既富于独特的个人机智与妙语，又不乏深刻的社会洞察与剖析。主要的代表作品有《百万英镑》(短篇)等。此外，马克·吐温还有自己的四大名著：《哈克贝利·费恩历险记》《汤姆·索亚历险记》《败坏了哈德莱堡的人》《苦行记》等。勃朗峰是阿尔卑斯山脉最高峰，也是西欧第一高峰，海拔4807米，法语意为“银白色山峰”，位于法国和意大利边境。勃朗峰地势高耸，常年受西风影响，降水丰富。冬季积雪，夏不融化，白雪皑皑，山体约有200平方公里为冰川覆盖。勃朗峰设有空中缆车和冬季体育设施，为登山运动胜地；山峰雄伟，风光旖旎，为阿尔卑斯山最大旅游中心。勃朗峰下筑有公路隧道，起自法国的沙漠尼山谷到意大利的库马约尔，长11.6公里，1965年建成通车，使巴黎到罗马的里程缩短了约220公里。
部编版语文八年级下册《礼记》二则 说课稿
一、说教材1、教材简析《虽有嘉肴》是人教版八年级下册第六单元中的一篇文言文,本单元文言文的教学重点是：能借助注释和工具书读懂课文大意，然后在反复诵读中领会它们丰富的内涵和精美的语言，并积累一些常用的文言词语。2、教学目标（1）熟读课文，并能准确地翻译、背诵全文，积累常用文言词语的用法。（2）理解文中所蕴含的道理，提高学生的语言表达能力和综合分析能力。（3）联系实际，用正确的学习方法指导自己的学习。3、教学重点难点教学重点：积累重点文言字词，熟读并背诵课文。教学难点：准确翻译文句，理解文中所蕴含的道理。