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人教版新课标高中物理必修2平抛运动教案2篇
（五）平抛运动规律的应用例1：一架老式飞机在高出海面45m的高处，以80m/s的速度水平飞行，为了使飞机上投下的炸弹落在停在海面上的敌船，应该在与轰炸目标的水平距离为多远的地方投弹?不计空气阻力。分析：对于这道题我们可以从以下几个方面来考虑：(1)从水平飞行的飞机上投下的炸弹，做什么运动?为什么?(2)炸弹的这种运动可分解为哪两个什么样的分运动?3)要想使炸弹投到指定的目标处，你认为炸弹落地前在水平方向通过的距离与投弹时飞机离目标的水平距离之间有什么关系?拓展：1、式飞机在高出海面45m的高处，以80m/s的速度水平飞行，尾追一艘以15m/s逃逸的敌船，为了使飞机上投下的炸弹正好击中敌船，应该在与轰炸目标的水平距离为多远的地方投弹?不计空气阻力。2、在一次摩托车跨越壕沟的表演中，摩托车从壕沟的一侧以速度v＝40m/s沿水平方向向另一侧，壕沟两侧的高度及宽度如图所示，摩托车可看做质点，不计空气阻力。（1）判断摩托车能否跨越壕沟？请计算说明（2）若能跨过，求落地速度？
人教版新课标高中物理必修2向心力教案2篇
3．进一步体会力是产生加速度的原因，并通过牛顿第二定律来理解匀速圆周运动、变速圆周运动及一般曲线运动的各自特点。（三）、情感、态度与价值观1．在实验中，培养学生动手、探究的习惯。2．体会实验的意义，感受成功的快乐，激发学生探究问题的热情、乐于学习的品质。教学重点1．体会牛顿第二定律在向心力上的应用。2．明确向心力的意义、作用、公式及其变形，并经行计算。教学难点1．对向心力的理解及来源的寻找。2．运用向心力、向心加速度的知识解决圆周运动问题。教学过程（一）、 引入新课：复习提问：匀速圆周运动的物体的加速度——向心加速度，它的方向和大小有何特点呢？学生回答后进一步引导：那做匀速圆周运动物体的受力有什么特点呢？是什么力使物体做圆周运动而不沿直线飞出？请同学们先阅读教材
人教版高中语文必修2《采薇》教案2篇
这两章是对战争场面的描写。写的是战车、战马、象弭、鱼服以及士兵的劳累奔波、饥渴难当，通过这些具体生动的细节描写来展现战争生活的图景。而没有写战场上的刀光剑影、厮打拼杀，但战争的残酷已可想见。4“昔我往矣，杨柳依依。今我来思，雨雪霏霏”被视为情景交融的佳句。清人王夫之在论《诗经·小雅·采薇》这两句时说：“以乐景写哀，以哀景写乐，一倍增其哀乐。”谈谈你的看法。一以往昔之虚衬眼前之实，以出征之乐衬内心之思亲之悲痛；二“杨柳依依”与“雨雪霏霏”对比，突出不胜今昔之感；三大雪交加，饥渴难当，情境实悲，以哀景写哀情。四、交流延伸1写一首诗或一段文字表达你对“乡愁”的新的体验。在全班交流。2课后搜集更多的表现乡情的诗歌散文作品，将你最感动的一篇拿到班上与同学分享感受。
人教版高中语文必修2《涉江采芙蓉》教案2篇
三、想象画面，把握意境1.指导想象学习陶渊明的《归园田居》我们脑海中自然会出现一幅幅的画面，比如他归家后的生活场景，我们会想象“榆柳”是如何遮蔽房屋的，而“桃李”又是如何摘种在房前的。我们会想象村落是如何在薄雾中若隐若现的，想象炊烟是如何袅袅升起的。《涉江采芙蓉》一诗只有8句话，更需要我们展开想象，去构画场景，这样才能深入诗歌，体会到诗歌的味道。2.学生想象要求学生闭目想象1分钟。3.学生展示想象结果（抽三四个学生回答即可）4.老师指导纠正学生想象不合理之处。要注意的地方：“江”可能学生会想象成小溪流、小池塘。“兰泽”可能学生理解成“湖泊”。注意字词“还顾”“漫浩浩”中隐含的情感，注意“离居”中流露的愁怨。5.时间允许的话，老师读自己的下水作文。
人教版高中语文必修2《演讲》教案2篇
一个世纪前，一位了不起的美国人签署了奴隶解放宣言，而我们今天就站在他的塑像下面。对于千千万万身受不公正待遇之苦的黑奴来说，这份划时代的文件，是一座光芒万丈的希望灯塔，是结束他们被束缚之漫漫长夜的快乐黎明。我有一个梦，有朝一日在乔治亚州的丘陵地带，奴隶的后代与奴隶主的后代，将能够兄弟般地相处。我有一个梦，有朝一日甚至密西西比州，这个充满不平与压迫的州，将转化成一片自由与公正的绿洲。我有一个梦，我的四个孩子，有朝一日将可以生活在这样一个国度里：在此人们不是根据他们的肤色，而是根据他们的品行来衡量他们。我今天有一个梦！我有一个梦，有朝一日在阿拉巴马州，尽管目前有许多恶毒的种族主义者，尽管州长叫嚷着要与联邦政府对抗，有朝一日在阿拉巴马州，黑人孩子与白人孩子将会像兄弟姊妹那样亲密无间。
人教版高中语文必修2《孔雀东南飞并序》教案2篇
让学生仔细聆听美妙的音乐，合作讨论，加深理解。（1）本诗文中的“兰芝被遣”和“兰芝抗婚”的情节，可与乐曲展开部第一阶段“逼嫁抗婚”对比阅读。文中的刘兰芝是在封建礼教的压迫下被遣归及被迫“改嫁”，刘兰芝与祝英台一样都进行了抗争。乐曲中的乐器奏出了具有威胁力的封建势力的主题，代表着封建势力的凶暴残酷，同时叙述了祝英台的悲痛和不安心情，表现了控诉、抗争的感情。（2）本诗文中的“夫妻誓别”的情节，可与乐曲呈示部中的结束部“长亭惜别”对比阅读。文中刘兰芝与焦仲卿的誓别。二人分手之际，依依不舍，“举手长劳劳，二情同依依”。乐曲中梁祝分别时依依不舍又充满悲伤，音调抒情徐缓。让学生在徐缓的音乐中去感受刘兰芝与焦仲卿生离死别的痛苦。
人教版高中语文必修2《故都的秋》教案2篇
三、具体研习1、文章的哪些段落描写了故都的秋？郁达夫先生既然这么喜欢故都的秋，那么他选取了哪些画面来写故都的秋？（学生阅读圈点，教师引导学生找关键词、关键句。）明确：从3--11自然段。主要是5幅画面，第３段庭院静观（破屋秋色），第４段槐树落蕊（街头落蕊），第５段秋蝉残鸣，第６—10段闲话秋凉，第11段清秋佳果。2、故都的秋有什么特点？明确：清、静、悲凉。2、作者在对这些景具体的描绘中，是如何体现故都秋“清、静、悲凉”的特点的呢？（下面先请同学来诵读课文3——11段落，其他同学要眼耳手脑并用，一是圈出文中体现秋天色彩的词语，二是标出传递声响的物名。我们将从“秋色”和“秋声”两个角度来品味一下故都的“秋味”。）
人教版高中语文必修2《离骚》教案2篇
四、品味诗歌艺术1、诗人是如何表现其品质的？运用了什么修辞手法？产生了怎样的表达效果？明确：诗句“扈江离与辟芷兮，纫秋兰以为佩”很好地体现了诗人光辉俊洁的人格。用“江离”“辟芷”“秋兰”三种香草来装饰自己，比喻自己，极其生动形象地表现了诗人自己美好的精神世界，使诗歌充满了浪漫主义气息。2、《离骚》中作者常以“香草”、“美物”来比喻自己、贤士和君王，并表达政治理想，这是《离骚》的一大艺术特色，这种方法叫做“移情法”，即不直接说出自己想说的话，而是把它寄寓于某一物上，也就是“移情于物”，这种方法在古典诗词中广泛运用，在政治不清明的时代，借用“移情”，可言难言之语，抒难抒之情。请找出相关的诗句，说说诗人是怎样运用这些比喻来表达政治理想的。
人教版新课标高中物理必修2功率教案2篇
1．用CAI课件模拟汽车的启动过程。师生共同讨论：①如果作用在物体上的力为恒力，且物体以匀速运动，则力对物体做功的功率保持不变。此情况下，任意一段时间内的平均功率与任一瞬时的瞬时功率都是相同的。②很多动力机器通常有一个额定功率，且通常使其在额定功率状态工作（如汽车），根据P=FV可知：当路面阻力较小时，牵引力也小，速度大，即汽车可以跑得快些；当路面阻力较大，或爬坡时，需要比较大的牵引力，速度必须小。这就是爬坡时汽车换低速挡的道理。③如果动力机器在实际功率小于额定功率的条件下工作，例如汽车刚刚起动后的一段时间内，速度逐渐增大过程中，牵引力仍可增大，即F和v可以同时增大，但是这一情况应以二者乘积等于额定功率为限度，即当实际功率大于额定功率以后，这种情况不可能实现。
新人教版高中英语必修2Unit 3 The Internet-Discovering Useful Structure教案二
This teaching period mainly deals with grammar “The Present Perfect Passive Voice.” To begin with, teachers should lead students to revise what they have learned about the Present Perfect Passive Voice. And then, teachers move on to stress more special cases concerning this grammar。This period carries considerable significance to the cultivation of students’ writing competence and lays a solid foundation for the basic appreciation of language beauty. The teacher is expected to enable students to master this period thoroughly and consolidate the knowledge by doing some exercises. 1. Guide students to review the basic usages of the Present Perfect Passive Voice2. Lead students to learn to use some special cases concerning the Present Perfect Passive Voice flexibly.2. Enable students to use the basic phrases structures flexibly.3. Strengthen students’ great interest in grammar learning.1. Help students to appreciate the function of the Present Perfect Passive Voice in a sentence2. Instruct students to write essays using the proper the Present Perfect Passive Voice.观察下列句子特点，总结共同点。1．(教材P28)Much has been written about the wonders of the World Wide Web．2．(教材P28)But the Internet has done much more for people than simply make life more convenient．3．(教材P28)Many people have been helped by the club．4．(教材P28)She no longer feels lonely, and her company has become quite successful．5．(教材P32)Today I thought I’d blog about a question that has been asked many times—how do you stay safe online and avoid bad experiences on the Internet?
新人教版高中英语必修2Unit 3 The Internet-Discovering Useful Structure教案一
This unit is about the Internet, which has a great influence to our humans and our lives. During the Listening & Speaking & Talking and Reading and Thinking section, the influence in examples has been shown. Thus, use the Present Perfect Tense is appropriate. However, in order to show the justice or weaken the doer of the behavior/action, it’s better to use the Present Perfect Passive Voice than the Present Perfect Tense. Besides, having learned to use the Present Perfect Passive Voice, students can beautify their language in their writing. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. Step 1 Observe the following sentences, then change the sentences into passive voice.He has been selected to take part in the sports meeting．(肯定句)他已被挑选出来参加运动会。The ink has not been removed from his overcoat．(否定句)墨迹还没有从他外套上去掉。
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 3 The Internet-Reading and Thinking教案一
Paragraph 3. Jan decided to start an IT club to teach old people how to use computers and the Internet. Paragraph 4. Jan has started taking online classes to learn more about how to use the Internet to make society better. Paragraph 5. Jan’s life has been greatly improved by the Internet. Step 5: Critical thinking:(1)How do you arrange your time spent on study and the Internet? Is it reasonable? I usually surf the Internet using my mobile phone for only an hour after class, and it is reasonable for me.(2)What are your online activities? Are they safe? I chat with my friends, read news and play games. I never give away my private information so I think they are safe.Step 4: summary Much has been written about the wonders of the World Wide Web. There are countless articles (1)______(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)_____(much) for people than simply make life more convenient. People’s lives (3) _________________(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)_____(stick) at home with only her computer to keep (5)___(she) company. She joined an online group (6)______ she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)_______(benefit). She was so inspired (8)____ she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)___ children in poor countries. Jan’s life has been (10)______(great) improved by the Internet. Step 5 Homework:Review what we have learned and find out the key language points in the text.
新人教版高中英语必修2Unit 3 The Internet-Reading for Writing教案二
8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有礼貌, 你被攻击的可能性就越小。 Step 8 Writing---the articleHow to stay safe in the online chat roomToday I thought I’d blog about a question that has been asked many times--- how do you stay safe online and avoid bad experiences in the online chat room ? I’m not an expert, but many years as a blogger have taught me a thing or two.First of all, there’s the golden rule of the Internet: keep out of what makes you uneasy. Don’t post comments or click on anything. Second, protect your privacy. Don’t give out too much private information like your address, phone numbers, the ID numbers, etc. Third, be polite. If you are polite to others on the Internet, you won’t be attacked in normal situation. Finally, don’t believe in others easily and never meet someone you met online alone. It is very dangerous.Have you had any bad experiences online, or do you have some good advice for staying safe? Post your comments below!Step 9 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1. Does the writer tell the reader what he/she know about the topic ?2. Are the tips and suggestions well organised ?3. Has the writer defined the new words ?4. Does the author include examples, comparison, or explanations ?5. Does the writer end by asking readers to leave comments and/or suggestions ?6. Can you find any grammar or spelling mistakes.Step 6 HomeworkPut up your revised draft in the classroom or read it to your class.
新人教版高中英语必修2Unit 3 The Internet-Listening &Speaking＆Talking教案一
Listening and Speaking introduces the topic of “ask about online habits”. Many middle school students have been surfing the Internet for many years, but what they do with the Internet and how much time they spend every day may not be very clear to themselves, nor to other students. This section allows students to investigate their peers' Internet use, which is conducive to their mutual understanding and understanding of the Internet. It can also help them reflect on their own online behavior, learn from other people's good online habits, and get rid of their bad online behavior.The listening text of this section is an investigation interview. The investigators interview specific groups with the same questions to obtain information, so as to understand their views, practices or attitudes on this issue. There are two specific questions: “how much time do you spend online every day? What do you usually do online?”. The answers of the three respondents provide rich and different information, and achieve the purpose of the investigators. The oral discourse structure of survey interviews generally includes greeting and explaining the purpose of the interview, presenting the interview questions and the respondents' answers. Listening and Talking introduces the theme of “choosing the right application ". Listening text is a conversation between Laura and Xiao Bo. In this part of listening, “oink”； “piggy bank” may cause the students' hearing comprehension limitation. Oink refers to sound word and pig's sound. So, add some oink to my piggy bank is often used to describe "making a little money".1. Guide students to understand the content of listening texts in terms of listening for definitions.2. Cultivate students' ability to define words and understand an investigation interview.
新人教版高中英语必修2Unit 3 The Internet-Reading and Thinking教案二
Q5：What's Jan's next goal?Her next goal is to start a charity website to raise money for children in poor countries.Q6：What can we learn from her experiences?We learn that when we go through tough times, we can find help and support from other people online. We learn that we can feel less lonelyStep 5: While reading---rethinkingQ1: What is Jan’s attitude to the Internet ?Thankful/Grateful, because it has changed her and her life.Q2: What writing skills is used in the article ?Examples(Jan’s example, the 59-year-old man’s and the 61-year-old woman’s example)Q3: Can you get the main idea of the article ?The Internet has changed Jan’s life/Jan’s life has been changed by the Internet.Step 6 Post reading---Retell the storyMuch has been written about the wonders of the World Wide Web. There are countless articles (1)telling(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)more(much) for people than simply make life more convenient. People’s lives (3) have been changed(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)stuck(stick) at home with only her computer to keep (5)her(she) company. She joined an online group (6)where she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)benefits(benefit). She was so inspired (8)that she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)for children in poor countries. Jan’s life has been (10)greatly(great) improved by the Internet.
新人教版高中英语必修2Unit 3 The Internet-Reading For Writing教案一
⑦identity theft 身份盗窃⑧chat room 聊天室⑨draft your blog post 起草博客帖子⑩post embarrassing photos 张贴尴尬照片 【话题句式】 1. How do you stay safe online and avoid bad experiences on the Internet? 你如何在网上保持安全, 避免在网上的不良经历? 2. I’m not an expert, but many years as a blogger have taught me a thing or two. 我不是专家, 但作为一个博主, 我已经学了好几年了。 3. If you see or read something that makes you feel uncomfortable, leave the site immediately. 如果你看到或读到一些让你觉得不舒服的东西, 立即离开这个网站。4. Don’t give out your address or phone number. 别告诉别人你的地址或电话号码。 5. Identity theft is a common and serious problem. 身份盗窃是一个常见而严重的问题。6. Being online is no excuse for being rude, and you don’t want to become a target for a troll or cyberbully. 上网并不是无礼的借口, 你也不想成为发挑衅帖子的人或网络恶霸的目标。 7. Trolls often use several false names so that they can stay on a site. 发挑衅帖子的人经常使用几个假名, 这样他们就可以留在一个网站上。8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有礼貌, 你被攻击的可能性就越小。
人教版高中语文必修1《论语》教案2篇
【教学意图】要了解中国传统文化，必须阅读古诗文名著名篇。但在中国文化形成过程中影响最大的是什么？可以说是儒家学说，包括《论语》这部经典。《论语》等书是读书人求仕做官的必修课本，是知识分子的思想言行基础，而且影响到整个社会生活，内容包括伦理道德、教育体制、民间习俗等方面的思想。因此，要了解中国传统文化，有必要读一读《论语》。【教学设计】因《论语》的年代已久远，对学生而言，要理解透彻文句是比较深奥困难的，因此必须在充分理解文意的基础上，对《论语》进行思想上的解读。可由教师从《论语》中概括出几点与生活、现实相关的要点，要求学生分组进行透彻的学习和领会，如“小人与君子”、“学习的方法”、“教育的理念”等等。〖教学重点、难点〗读《论语》知儒家思想。〖教学方法〗讲解启发、探究梳理、拓展延伸。
人教版高中语文必修1《奇妙的对联》教案2篇
3、介绍对联的历史引出本课的重点。人类历史上的第一副对联是“新年纳余庆，嘉节号长春”。出现在五代十国时期（公元964年），距离现在已经有1044年了。有着一千多年历史的对联有什么基本的特点呢？这是我们这节课学习的重点。请在座的各位当回医生，给下面这幅对联号号脉，看它对仗是否工整？上联：冬去春来千条杨柳迎风绿下联：冰消雪化梅花万朵扑鼻有什么问题，怎么改？刚才这几位同学指出了这幅对联的两个问题，也提出了两条修改意见。第一是下联少了一个字，最好是添加一个“香”字；第二是下联的“梅花万朵”与上联的“千条杨柳”是数量词对名词，名词对数量词，对仗不工整，要调整为“万朵梅花”。这样，数量词“万朵”对“千条”，名词“梅花”对“杨柳”。大家还有没有不同的看法。这样我们就可以得出对联的两个特点特点：第一个特点是上下联字数要相等（板书）。就是上联有几个字，下联也要有几个字。大家记下来，对联基本要求一，“上下联字数相等”。这个要求是很严格的，一般来说，违反这个规则就不成对联了。
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。