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人教版新课标高中物理必修1弹力教案2篇
一般情况下，凡是支持物对物体的支持力，都是支持物因发生形变而对物体产生弹力。所以支持力的方向总是垂直于支持面而指向被支持的物体。例1：放在水平桌面上的书书由于重力的作用而压迫桌面，使书和桌面同时发生微小形变，要恢复原状，对桌面产生垂直于桌面向下的弹力f1，这就是书对桌面的压力；桌面由于发生微小的形变，对书产生垂直于书面向上的弹力f2，这就是桌面对书的支持力。学生分析：静止地放在倾斜木板上的书，书对木板的压力和木板对书的支持力。并画出力的示意图。结论：压力、支持力都是弹力。压力的方向总是垂直于支持面而指向被压的物体，支持力的方向总是垂直于支持面而指向被支持的物体。引导学生分析静止时，悬绳对重物的拉力及方向。引导得出：悬挂物由于重力的作用而拉紧悬绳，使重物、悬绳同时发生微小的形变。重物由于发生微小的形变，对悬绳产生竖直向下的弹力f1，这是物对绳的拉力；悬绳由于发生微小形变，对物产生竖直向上的弹力f2，这就是绳对物体的拉力。
人教版新课标高中物理必修1摩擦力教案2篇
l．知识与技能：（1）知道摩擦力产生的条件。（2）能在简单问题中，根据物体的运动状态，判断静摩擦力的有无、大小和方向；知道存在着最大静摩擦力。（3）掌握动磨擦因数，会在具体问题中计算滑动磨擦力，掌握判定摩擦力方向的方法。（4）知道影响到摩擦因数的因素。2．过程与方法：通过观察演示实验，概括出摩擦力产生的条件及摩擦力的特点，培养学生的观察、概括能力。通过静摩擦力与滑动摩擦力的区别对比，培养学生分析综合能力。3．情感态度价值观：在分析物体所受摩擦力时，突出主要矛盾，忽略次要因素及无关因素，总结出摩擦力产生的条件和规律。二、重点、难点分析1．本节课的内容分滑动摩擦力和静摩擦力两部分。重点是摩擦力产生的条件、特性和规律，通过演示实验得出关系f=μN。2．难点是学生有初中的知识，往往误认为压力N的大小总是跟滑动物体所受的重力相等，因此必须指出只有当两物体的接触面垂直，物体在水平拉力作用下，沿水平面滑动时，压力N的大小才跟物体所受的重力相等。
新人教版高中英语必修1Unit 2 Travelling Around-Reading and Thinking教案
Good expressions that students can choose to use: help the travelers choose which tour to take1. In my opinion, you could/might choose…, because you prefer to…2. …could be a perfect choice for you, for…3. As far as I am concerned, you would enjoy…, for…4. …would probably suit you, because you enjoy/love/hate doing…Step 5 Passage ConsolidationLanguage appreciation:1. You can then spend three days exploring the rainforest with a local guide and enjoying the plants and animals unique to the rainforest. 在接下来的三天里，您可以在当地导游的陪同下，深入雨林进行探索，欣赏雨林特有的动植物。本句主体结构为spend some time doing sth. 2. Inca builders cut stones to exact sizes so that nothing was needed to hold walls together other than the perfect fit of the stones. 印加的建筑工人将石头切割成精确的尺寸，仅仅凭着石头间的完美契合，即可稳固墙体。本句为so that引导的结果状语从句。nothing与the perfect fit为并列成分; other than在句中意为“除了”。Step 6 HomeworkSuppose you will travel to Peru, write a short essay about your three-day tour plan.
新人教版高中英语必修2Unit 3 The Internet-Listening &Speaking＆Talking教案二
From the pictures in the text and the title--- choose the best app, we can know that this part is about how to save money by using apps.Step 2 While-listening1. Laura and Xiao Bo are talking about apps. Listen to their conversation and find out what apps they want.Xiao Bo is looking for a(n) exercise app to help him get in shape.Laura would like an app for getting rich and another that will make her grades better.2. Listen again. Are the sentences true T or false F?1). Both of Xiao Bo's apps keep track of the steps he takes._____2). Xiao Bo's second app can help him make a fitness plan._____3). Laura needs an app that will help her get discounts.______4). Laura needs an app that will add money to her bank account._______F T F T3. Listen once more and tick the sentence you hear. Underline the words used to express predictions, guesses, and beliefs.Predictions, Guesses, and Beliefs________It might help me walk more.________My guess is that it wouldn't work.________I imagine this app would help me get fit faster________I suppose that would be good.________I guess you could save a little with this app.________I suppose there would be some problems, too.________I believe this app could help me get thinner.
新人教版高中英语必修2Unit 4 History and Traditions-Reading and Thinking教案二
Step 5 While reading---Task 3Read the text again and answer the following questions.Q1: How many countries does the UK consist of ?4 Q2: What are the four countries of the United Kingdom?England, Wales, Scotland and Northern Ireland Q3: Which two were the first to be joined together ?England and WalesQ4: What are the two chief advantages of studying the history of a country ?The first one is to help you understand more about the country and its traditions.The second one is to make visiting it more enjoyable.Q5: What’s the author’s attitude towards studying the history ?Supportive/positiveStep 6 Post reading---Retell the textThe United Kingdom, Great Britain, Britain, England—many people are confused by (1)_____ these different names mean. In the 16th century, the nearby country of Wales (2) __________(join) to the Kingdom of England. In the 19 th century, the Kingdom of Ireland was added to create the United Kingdom of Great Britain and Ireland. Finally, the southern part of Ireland (3) ______ (break) away from the UK, which resulted in the full name we have today. However, most people just use the (4)_________(shorten) name: the UK. The four countries (5)__________ belong to the United Kingdom work together in some areas. There were four sets of invaders and the last group were the Normans. They had castles (6)_________(build) all around England and made changes (7)__________ the legal system. Studying the history of the country will make your visit much more (8)_________(enjoy). The capital city London is (9)___ ancient port city that has a history (10)______(date) back to Roman times. 1. what 2.was joined 3.broke 4.shortened 5.that 6. built 7.to 8.enjoyable 9.an 10.dating Step 6 Homework
新人教版高中英语必修2Unit 4 History and Traditions-Reading for Writing教案
Step 1 Lead inThere are many interest of places in the UK. What do you know ?The Big Ben the London Tower the Thames RiverStep 2 Before reading---analyze the titleBeautiful Ireland and its traditionWe know that the article mainly tells about the beauty and traditions of Ireland. Step 3 While reading---Task 1Read the text and answer the following questions.Q1: What makes the Irish countryside exciting and inspiring?Its beauty and how it offers something for all the scenes.Q2: What are the best ways to experience some Irish traditions and cultures?By stopping by a village pub and relaxing with a drink and traditional meal while listening to music and watching dancingQ3: What is the meaning of “breathe in the sweet scent of fresh flowers while birds greet the new day with their morning song ?”It means to not just smell but also breathe in the smell of fresh flowers early in the morning as the birds sing their first song of the new day.Q4: What are the best ways to experience Chinese traditions and customs ?By travelling to different places and using all your senses to experience everything and by interacting with local people.Step 4 While reading---Task 2Analyze the descriptive paragraph1. Identify and underline the paragraph’s introductory sentence and the ending sentence.Introductory sentence: Ireland’s beautiful countryside has always had a great influence on its people and traditions.Ending sentence: And if you introduce yourself to a friendly face, you are more than likely to experience local culture and customs first-hand.2. The paragraph talks about different senses in different places. Write the senses and places in the order that they appear.
新人教版高中英语必修2Unit 5 Music-Discovering Useful Structures教案二
4. When he got absorbed in his world of music, he felt as if he could “see” the beauty of the world around him, like he had in his previous life.P·P as adverbial: _________________________________________________________________.Function: _______________________________________________________________________.Step 5 Solid Complete the passage with the words in brackets in their correct forms.Well known as a successful band, the Impact members show quite a few striking qualities. They never ever give up. When _____________(question) by the media, they are not _____________(discourage) and practise even harder. They are improving themselves by attending several master training class. They are united. _____________(fill with) team spirit, they act as a whole, always aiming for glory. Step 6 Difference and similarity from -ingObserve the following examples.1. He went out, shutting the door behind him.=He went out, ________________________________________________________.2. Not knowing what to do, he went to his parents for help.=__________________________________________, he went to his parents for help.Similarity: _______________________________________________________________________________________________________________________________________________________.Difference : _______________________________________________________________________________________________________________________________________________________.Step Practice1. ________ in a hurry, this article was not so good. 因为写得匆忙, 这篇文章不是很好。2. ________ carefully, he found something he hadn’t known before. 他仔细读书时, 发现了一些从前不知道的东西。3. ________ why he did it, the monitor said it was his duty. 当被问及他为什么要这么做时, 班长说这是他的职责
新人教版高中英语必修2Unit 5 Music-Listening＆Speaking＆Talking教案
choir memberspeople to run food stands people to sell festival ticketspeople to sell music CDspeople to set up equipmentmusical performersStep 2: Listen to the announcement again and answer the questions. ? 1. What kind of songs will Grace Davis sing at the festival?? 2. Who can try out as a performer?? 3. What can those who think they do not have musical talent do?? 4. How can students volunteer to take part?? Talking about preferences:? Would you prefer doing ..?? What would you prefer to do?? Would you rather do .... or ….?? What would you rather do?? I'd prefer .... to ..? I'd rather have ... than .. Step 3: Speaking ProjectWork in groups. Role-play the conversation or make a new one.? Debbie: Where have you been? You missed the announcement about the music festival.? John: I was at the doctor's office. Music festival?? Frank: Yes, it's going to be next month on the school sports field. John, you can play the piano. How about playing it at the festival?? John: Well, I'd rather play the violin. I can play Liang Zhu.? Frank: Wow! Sounds good. What about you, Debbie? ? Debbie: Actually, I don't have much musical ability. I'd prefer just to help out with the crowds.? Frank: You can sell tickets or work at a food stand.? John: So can I assume that the aim of the festival is to raise money?? Debbie: Yes. All of the money will go to charity.
新人教版高中英语必修2Unit 5 Music-Reading and Thinking教案二
1. Get basic information about Eric; read deeply to understand the history and development of the virtual choir.2. Understand what the function of the virtual choir is and how to make a virtual choir.3. Understand the meaning of some languages in the context of the text through question guidance, such as “Many people do not have close friends or contacts who have the same interest in music.” and so on.Step 1 Leading-in1. Answer the following questions.Q1：Do you know the Apps like Tik Tok and Quick Hand?Q2: Do you want to make a Tik Tok video or a Quick Hand video?2. Play a Tik Tok video Step 2: Understanding the title Q1：What does the title mean ?Q2: Is the article a narration or exposition? Why? Q3: Can you change the title ? If you can, what is the title?Step 3: Scanning the whole text and getting the basic information1. Answer the following questions.Q1：Who came up with the idea for a virtual choir?Q2: Where did Eric studied the musical composition?Q3: What is his song?2. Find the main idea of each paragraph3. Deal with some new words.Step 4: Reading carefully to get detailed informationPara 1 How to make a virtual choir1. PreparationA. tools: a virtual camera; an Internet connectionB. hero/heroin: friends or some individuals who have the same interests2. Process
人教版高中语文必修3《寡人之于国也》说课稿2篇
（明确：“寡人之于国也，尽心焉耳矣”，但“寡人之民不加多，何也？”）②他认为自己对国家政务尽心尽力了，他有哪些具体做法？（明确：移民移粟）③第2—4节中孟子是怎样说明梁惠王移民移粟的措施与“邻国之政”并无本质区别的？（明确：孟子不直接回答“民不加多”的问题，而是用梁惠王熟悉的“战”设喻——设圈套，诱使对方在不知不觉中说出“不可，直不百步耳，是亦走也。”）④孟子认为怎样才能做到“王道之始”？要想“王道之成”还需采取哪些措施？（明确：“不违农时，谷不可胜食也。数罟不入氵夸池，鱼鳖不可胜食也。斧斤以时入山林，材木不可胜用也。谷与鱼鳖不可胜食，材木不可胜用五亩之宅，树之以桑，五十者可以衣帛矣。鸡豚狗彘之畜，无失其时，七十者可以食肉矣。百亩之田，勿夺其时，数口之家，可以无饥矣。谨库序之教，申之以孝涕之义，颁白者不负戴于道路矣。）这一小步的目的是想让学生通过这些问题的解答，可以进一步理清思路，掌握文的大概内容。
人教版高中语文必修3《老人与海》说课稿2篇
3、重要语句的理解“可是一个人并不是生来要给打败的，你尽可把它消灭掉，可就是打不败他。”解析：这是老人第一次回合之后的内心独白，也是此小说的核心精神，充分体现了老人桑地亚哥的生命理念。整句话可以分为两部分来理解，前句告诉我们，人生活在自然与社会当中，必不可少要面临一些坎坷、磨难，这些磨难、坎坷完全可以造成躯体的消灭、消亡，这是人生命的脆弱性。后句，面对挫折，只要保持一种乐观的精神，拥有一颗坚强的心灵，那么，人类执着奋斗的精神将永不磨灭。4、象征主义题目是《老人与海》，而表明上，小说是写一位老人及其在海上的经历，但实际上，老人的形象极具概括性，他已经超越了一个人的存在，而成为了人生的一种象征。老人桑地亚哥就是“硬汉子”的代表，大海则是生命旅途的象征，鲨鱼则是我们行走中的“强物”，厄运的象征。人的一生不可能一帆风顺，不经历风雨，怎能见彩虹，走在人生路途中，不可避免我们都要遇到挫折，被厄运所阻挠，只有经历与“鲨鱼”的较量，才能成为强者，唱出最美的歌。
人教版高中政治必修2对人民负责说课稿
在学生活动的基础上，教师总结归纳：要坚持从群众中来到群众中去的工作方法。要求：政府要通过各种途径，利用各种群众组织、社会团体广泛收集群众意见和建议，认真对待群众的来信来访。还要为群众诚心诚意办实事，尽心竭力解难事，坚持不懈。通过合作探究，以此来培养学生的分析能力，探究能力以及透过现象看本质的能力，培养学生获取信息的能力，自主学习的能力以及全面看问题的能力，再结合教师的讲授，给学生一种茅塞顿开的感觉。环节四 回归生活 提升情感我将引导学生阅读课本，通过设置活动探究课，结合生活实际从时效，便利，实效等方面请学生评述公民求助或投诉的四种方式的特点和优点。在这一过程中，我还会用多媒体展示常用的热线电话，政府网站上有关信访、政务公开及其他便民利民的栏目，丰富课堂资源。让学生阅读课本，自行归纳知识点，有助于培养学生自主学习能力。
人教版高中生物必修2人类遗传病说课稿
一、人类遗传病1．概念2．分类(1)单基因遗传病(2)多基因遗传病(3)染色体异常遗传病①原因②类型3遗传病的特点4．遗传病对人类的危害八、说布置作业在作业的布置中，我严格遵循“重质量、轻负担”的指导思想。第一题主要是为了帮助学生及时纠正原有的对知识的错误理解或片面认识，培养学生的解题技巧和技能。所以我选用了该题。同时想借助该题培养学生对问题的科学的思维方法和探究的精神。帮助学生提高对信息技术运用的熟练程度，发展学生的信息素养。附作业：1、连线题，请同学们连线指出下列遗传各属于何种类型？（1）苯丙酮尿病 A、单基因遗传病（2）21三体综合征（3）抗维生素D佝偻病 B、多基因遗传病（4）软骨发育不全（5）青少年型糖尿病 C、常染色体病2、以生物小组为单位进行人类遗传病的调查。
人教版高中语文必修1《再别康桥》说课稿2篇
一、教材分析1、教学对象分析《再别康桥》的教学对象是高一学生，高一学生往往对那种纯粹的、原始的、本真的情感体会较为肤浅，《再别康桥》是新月派诗人徐志摩的传世之作，有极高美学价值，它所抒发的离愁别绪是人类共同的情感经历，通过诵读容易将学生带人诗境，唤醒他们沉寂的真情，从而引起强烈的共鸣。 2、教材地位及作用 高中语文第一册第一单元为诗歌单元，本单元收录了中国现当代的一些优秀诗篇。《再别康桥》安排在本单元的第二课，属于必读课。虽然本诗向来众说纷纭，但其艺术之美人所共知，培养学生高尚的审美情趣和良好的审美创造力是语文学科的任务，因此，从语言赏析入手，从情感体验切入，就可以让学生通过学习本课体会现代诗歌的特点，多方面感受体悟诗歌的情感，受到美的熏陶。
人教版高中语文必修2《兰亭集序》说课稿3篇
（二）分析课文，理清思路第1、2段为第一部分，主要是叙事、写景，先叙述集会的时间、地点，然后渲染出兰亭优美的自然环境。在这里足以“游目骋怀”“极视听之娱”，可以自由地观察、思考，满足人们目视耳闻的需求。这里正是与会“畅叙幽情”、尽兴尽欢的绝好处所。这些描写都富有诗情画意，作者的情感是轻松愉快的。第3、4段为第二部分，主要是抒情、议论，作者由美景妙时引发出乐与忧、生与死的感慨。他认为人生的快乐是有极限的，待快乐得到满足时，就会感觉兴味索然。往事转眼间便成为历史，人到了生命的尽头就会死亡。作者由“一死生为虚诞，齐彭殇为妄作”的认识，产生了一种珍惜时间、眷恋生活、热爱文明的思考。虽然文中的寿夭、生死不能自由决定，从而有些伤感，但作者仍然认识到盛衰、生死是必然的。人生无常，时不我待，故著文留传后世，以承袭前人，启示来者。
人教版高中语文必修2《赤壁赋》说课稿3篇
[教学反思]人教版高中语文必修二第三单元安排了《兰亭集序》《赤壁赋》《游褒禅山记》三篇古代山水游记散文，它们借游赏之事，探索生命的意义、治学的道理。师者，所以传道、授业、解惑也。高中的教材选用的都是历史经典名篇，每一篇都闪烁着儒道释等百家光辉的思想。编者要老师传道的意图很明显。即非如此，看着这些影响历代、影响世界的如日月之耀眼光华的伟大思想就躺在我们的教科书里，又如何能不讲呢？所以，我将本课的教学重难点拟定为：帮助学生建立积极的生死观，掌握多角度看问题的正确的思想方法。当然，也让学生领会了融写景、抒情、说理于一炉的大家手法。整堂课各教学环节，环环相扣，过渡自然，读、思、议、写训练到位，而且全部围绕“生死观”展开，如一篇形散神不散的散文。
人教版高中语文必修3《动物游戏之谜》说课稿2篇
一、导入新课人类社会越来越现代化，新科学技术日新月异，令人目不暇接，称之到了“知识爆炸”的时代也毫不为过。由此而来的是生活的快节奏，学习和工作的竞争也越来越激烈。这种竞争一直波及到了儿童，加之中国几千年来形成的望子成龙的传统观念，使作父母的把一切希望都寄托在孩子身上，实现自己未能实现的理想。祖孙三代4、2、1的局面，使12只眼睛都盯在了孩子身上，真是走路怕摔着，吃饭怕噎着，干活怕累着，要星星不敢摘月亮，要吃什么跑遍全城也要买来。这种过分保护、溺爱及过早地灌输知识会得到什么结果呢？乐观者说孩子越来越聪明，越来越早熟，将来能更好适应现代化的要求；悲观者则认为豆芽菜式的孩子将来经不起风浪，小皇帝太多了很难凝聚成统一力量，将来谁去当兵，谁去干那些艰苦创业性工作……。对孩子本身来说，是幸福还是……在此不想多发议论，还是让我们来看看动物世界的孩子们吧，也许会得到某种启迪。
人教版高中历史必修1辛亥革命说课稿2篇
三、辛亥革命的结局1.袁世凯窃取革命果实由课件给出窃取革命果实的简单过程，帮学生理清思路，创设问题情境，由学生分析革命果实被窃取的原因，教师给以补充并揭示根本原因，贯穿整个革命的资产阶级的软弱性和妥协性，再次加深对难点的理解。2.历史功绩辛亥革命性质、功绩由学生阅读书本进行总结，再加以补充让学生在书本上做好记录，强调最大功绩是结束了两千多年的君主专制政体。辛亥革命的失败及其评价很易搞成生硬的一言堂形式，可以从多种角度把学生思维调动起来。这里采用列举一个合作探究,自由讨论的题目“有人认为辛亥革命因为没有完成反帝反封建的革命任务而失败，有人则认为辛亥革命是中国“从君主到民主”社会转型的成功开始。你同意哪种看法？”要求同学们自由讨论.各抒己见,大胆创新,言之在理即可.教师在一旁引导学生,活跃课堂气氛.最后教者归纳总结学习历史从不同的角度看问题可以得出不同的结论,学会用辩证的观点看待历史问题，对辛亥革命有个全面的认识。
人教版高中生物必修2基因在染色体上说课稿
三、孟德尔遗传规律的现代解释①分离定律：在杂合体的细胞中，位于一对同源染色体上的等位基因，具有一定的独立性；在减数分裂形成配子的过程中，等位基因随同源染色体的分开而分离，独立地随配子遗传给后代。②自由组合定律：位于非同源染色体上的非等位基因的分离或组合是互不干扰的；在减数分裂过程中，同源染色体的等位基因彼此分离的同时，非同源染色体上的非等位基因自由组合。总结：再次强调孟德尔遗传定律的现代解释课堂练习：书本31页6、教学反思：本节课设置了一系列问题情境，层层设问，在学生答问、质疑、讨论过程中让学生建构新概念和新的知识体系，并通过教师及时掌握反馈信息，适时点拨、调节，让学生在推理判断中培养良好的思维习惯和对知识的迁移能力，而且通过留出一定的时间让学生提问，体现了以学生为主体的思想。
人教版高中生物必修2染色体变异说课稿
四、说教学程序（一）.温故知新、导入新课复习提问:基因突变导致生物变异的原因是什么?回答:基因突变是基因结构发生改变，从而使遗传信息改变，使蛋白质结构改变、生物性状改变，即生物发生了变异。那么，基因是什么?它和染色体又有何关系?回答:基因是有遗传效应的DNA片断，染色体是DNA的载体，基因在染色体上呈线形排列。引出新知:对于一个生物体来说，正常情况下，其染色体的结构和数量都是稳定的。但在自然条件或人为因素的影响下，染色体的结构和数量均会发生改变，从而导致生物性状的改变，这就属于染色体变异。（二）.把握重点、突破难点重点的把握：1、染色体结构的变异播放影片:猫叫综合征幼儿。让学生观察: 患儿哭声轻、音调高，很像猫叫。教师补充: 患儿的征状---两眼较低、耳位低下，存在着严重的智力障碍。阐述病因---染色体片段缺失
