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人教版高中语文必修2《氓》教案2篇

  • 北师大初中八年级数学下册利用四边形边的关系判定平行四边形教案

    北师大初中八年级数学下册利用四边形边的关系判定平行四边形教案

    解:四边形ABCD是平行四边形.证明如下:∵DF∥BE,∴∠AFD=∠CEB.又∵AF=CE,DF=BE,∴△AFD≌△CEB(SAS),∴AD=CB,∠DAF=∠BCE,∴AD∥CB,∴四边形ABCD是平行四边形.方法总结:此题主要考查了平行四边形的判定,以及三角形全等的判定与性质,解题的关键是根据条件证出△AFD≌△CEB.三、板书设计1.平行四边形的判定定理(1)两组对边分别相等的四边形是平行四边形.2.平行四边形的判定定理(2)一组对边平行且相等的四边形是平行四边形.在整个教学过程中,以学生看、想、议、练为主体,教师在学生仔细观察、类比、想象的基础上加以引导点拨.判定方法是学生自己探讨发现的,因此,应用也就成了学生自发的需要,用起来更加得心应手.在证明命题的过程中,学生自然将判定方法进行对比和筛选,或对一题进行多解,便于思维发散,不把思路局限在某一判定方法上.

  • 北师大初中数学九年级上册用配方法求解简单的一元二次方程1教案

    北师大初中数学九年级上册用配方法求解简单的一元二次方程1教案

    探究点二:用配方法解二次项系数为1的一元二次方程用配方法解方程:x2+2x-1=0.解析:方程左边不是一个完全平方式,需将左边配方.解:移项,得x2+2x=1.配方,得x2+2x+(22)2=1+(22)2,即(x+1)2=2.开平方,得x+1=±2.解得x1=2-1,x2=-2-1.方法总结:用配方法解一元二次方程时,应按照步骤严格进行,以免出错.配方添加时,记住方程左右两边同时加上一次项系数一半的平方.三、板书设计用配方法解简单的一元二次方程:1.直接开平方法:形如(x+m)2=n(n≥0)用直接开平方法解.2.用配方法解一元二次方程的基本思路是将方程转化为(x+m)2=n(n≥0)的形式,再用直接开平方法,便可求出它的根.3.用配方法解二次项系数为1的一元二次方程的一般步骤:(1)移项,把方程的常数项移到方程的右边,使方程的左边只含二次项和一次项;(2)配方,方程两边都加上一次项系数一半的平方,把原方程化为(x+m)2=n(n≥0)的形式;(3)用直接开平方法求出它的解.

  • 北师大初中数学九年级上册用因式分解法求解一元二次方程1教案

    北师大初中数学九年级上册用因式分解法求解一元二次方程1教案

    探究点二:选用适当的方法解一元二次方程用适当的方法解方程:(1)3x(x+5)=5(x+5);(2)3x2=4x+1;(3)5x2=4x-1.解:(1)原方程可变形为3x(x+5)-5(x+5)=0,即(x+5)(3x-5)=0,∴x+5=0或3x-5=0,∴x1=-5,x2=53;(2)将方程化为一般形式,得3x2-4x-1=0.这里a=3,b=-4,c=-1,∴b2-4ac=(-4)2-4×3×(-1)=28>0,∴x=4±282×3=4±276=2±73,∴x1=2+73,x2=2-73;(3)将方程化为一般形式,得5x2-4x+1=0.这里a=5,b=-4,c=1,∴b2-4ac=(-4)2-4×5×1=-4<0,∴原方程没有实数根.方法总结:解一元二次方程时,若没有具体的要求,应尽量选择最简便的方法去解,能用因式分解法或直接开平方法的选用因式分解法或直接开平方法;若不能用上述方法,可用公式法求解.在用公式法时,要先计算b2-4ac的值,若b2-4ac<0,则判断原方程没有实数根.没有特殊要求时,一般不用配方法.

  • 小学讲诚信懂礼仪公民教育实践活动教学教案

    小学讲诚信懂礼仪公民教育实践活动教学教案

    二、教学过程:1、活动一:讲故事,学诚信。1)师:春秋战国时期,商鞅下令在都城南门外立一根三丈长的木头,并许下诺言:谁能把这根木头搬到北门,赏金十两。有人将木头扛到了北门,商鞅立即赏了他五十金。商鞅这一举动,在百姓心中树立起了威信。而商鞅接下来的变法就很快在秦国推广开了,新法使秦国渐渐强盛,最终统一了中国。

  • 教学反思数学仿编应用题活动《小鬼当家》课件教案

    教学反思数学仿编应用题活动《小鬼当家》课件教案

    目的:1、让幼儿学会仿编和解答4的加减应用题。2、在生活情景中能根据水果卡片自编4的加减应用题。准备:1、知识经验准备:请家长带 幼儿去买东西,使幼儿了解一个买与卖的过程。2、物质准备:准备各种水果卡片,人手4个替代物作钱。过程:一、以“帮农民伯伯摘果子”引入。“小朋友,果园里的水果都成熟了,农民伯伯想请你们帮他摘水果,你们愿意吗?”(愿意)二、游戏“摘水果”。师交代游戏玩法和规则。三、分类活动:分水果。1、引导幼儿将自己所摘的水果跟同伴之间进行交流。2、交代任务:将各种水果分别放在筐里。

  • 大班体育教案:民间体育游戏活动设计—跳竹竿

    大班体育教案:民间体育游戏活动设计—跳竹竿

    二、活动目标:1、利用纸棒进行活动,学习跳竹竿游戏,发展弹跳能力。2、体验与同伴合作游戏带来的快乐。3、愿意积极想办法解决活动中遇到的困难。三、活动准备:经验准备:幼儿观看过录像物质准备:人手一根纸棒(长度为1米)。录音机,磁带。四、活动过程:1、开始部分:幼儿随音乐利用纸棒进行队列练习。导语:今天天气真不错,我们骑着马出去玩玩吧!(幼儿随音乐的变化“骑马”变双圆----大圆----小圆---- “坐马车” )反思:活动开始部分设计了随音乐利用纸棒进行队列练习在这一环节中由两队“骑马”变双圆----变小圆----合作组合“坐马车”体现了动静交替的原则,让幼儿初步尝试了与同伴合作的快乐,同时也为下一个环节奠定了基础。2、基本部分:(1)利用纸棒进行“一棒多玩”导语:纸棒可以和我们玩坐马车的游戏,还可以和我们玩什么游戏呢?我们一起来试试,可以自己玩,也可以和小伙伴一起玩。(幼儿四散游戏)队形:两路纵队(见附图)(2)学习“跳竹竿”游戏A、讲解游戏玩法导语:刚才小朋友用纸棒玩了许多游戏,今天老师要和大家用纸棒玩一个新游戏——跳竹竿,这个游戏可以三个或四个小朋友一起玩,其中两个小朋友手拿竹竿面对面跪下,用竹竿同时分合敲击,另一个小朋友在中间看准竹竿的分合跳进或跳出。大家可以自己选择小伙伴一起试一试。队形:梯形队(见附图)(3)幼儿自由组合尝试玩“跳竹竿”游戏队形:四散(4)对幼儿在游戏过程中出现的情况及时进行指导(合作、交往方面)导语:你刚才和谁一起玩的?你们是怎么跳竹竿的?队形:梯形队(见附图)(5)鼓励幼儿创造性地玩“跳竹竿”游戏,师生共同参与。

  • 大班体育教案:快乐的户外区域体育——探险寻宝

    大班体育教案:快乐的户外区域体育——探险寻宝

    2、增强规则意识:根据指示箭头有序活动,不随便插队。3、敢于挑战困难,勇敢坚强。4、感受运动的快乐,愉悦身心。(一)平衡区——过鳄鱼桥活动目标:1、在梯子、轮胎、摇板等组合器械上行走,提高平衡能力。2、克服困难,勇敢前进。

  • 小班艺术教案“蜘蛛先生造房子”(放射线和小短线来造型

    小班艺术教案“蜘蛛先生造房子”(放射线和小短线来造型

    2、 在故事和儿歌的帮助下,理解蜘蛛网的基本构造。 3、 体验帮助他人的快乐。 活动准备: 课件(蜘蛛、蜘蛛先生造房子的幻灯片、蜘蛛网)、幼儿绘画纸(上有蜘蛛),蜡笔 活动过程: 一、故事导入,引发兴趣。 1、 课件出示蜘蛛,让幼儿观察认识蜘蛛。 2、 结合课件,教师讲述故事《蜘蛛先生造房子》。 问:蜘蛛先生在找什么? 蜘蛛先生是用什么造房子的? 蜘蛛先生的房子是怎样的? 3、出示相应的蜘蛛网让幼儿观察蜘蛛网的构造。

  • 小班主题活动“彩色世界”——活动纪实课件教案

    小班主题活动“彩色世界”——活动纪实课件教案

    一、 生成背景 秋天到了,老师带着孩子们在幼儿园里散步,有的说“小草变成黄色了”,“秋天到了,树叶也变黄了。”“老师,老师。我还看到过红色的树叶”。孩子们高兴地在幼儿园里找着还有什么颜色的树,回去后,我们和孩子们一起制作了手掌树,有的绿,有的黄,有的红……一棵五颜六色的树生长在我们班活动室里。我们继续和孩子们在生活中发现哪里有颜色,找一找,说一说,画一画,由此生成了“彩色世界”的主题。 二、 课程目标与网络图 目标: 1、探索周围事物的颜色。 2、学习观察生活中物品的颜色,形成相应的颜色概念。 3、尝试运用多种形式感受颜色。 4、体验色彩表化的奇妙。 5、参与色彩游戏,并体验游戏的乐趣。

  • 小班主题活动亲亲宝贝之宝宝觉得怎么样课件教案

    小班主题活动亲亲宝贝之宝宝觉得怎么样课件教案

    活动目标: 1、幼儿敢于尝试,且愿意与同伴交流感受。2、幼儿会用自己的方式来表达不同感受及不同表情。3、幼儿尝试运用指画的技能表现各种表情。*活动准备: 1、部分表情的宝宝头像。 2、食物(若干)。 3、纸盘、颜料。 4、镜子。

  • 大班健康活动——《尖利的物品》课后反思课件教案

    大班健康活动——《尖利的物品》课后反思课件教案

    2、学习使用剪刀、筷子、笔、刀、游戏棒等物品的正确方法。 这节课我共分四方面来进行教学,首先让幼儿观察了解尖利物品,知道名称,了解它的用途。因为幼儿的人数较多,怕在分组活动中出现意外,所以我只准备了一份的物品让幼儿进行观察,课堂的秩序较好。在出示物品时,幼儿都能积极的举手告诉我这些物品的名称,从这里可以看出幼儿对于这些东西是十分的熟悉的;并对它们的用途也是比较了解的,大多数的幼儿一次就把所有物品的用途都说出来了,但是对于他们的共同之处幼儿的回答就不太完整,虽然知道但是不能用一个较好的词语来进行概括,从这里我发现我班幼儿在语言发展方面,词汇还是不够丰富需要加强。幼儿对‘为什么要把尖利物品设计成这样’,不太了解,有的幼儿说 “本来就是这样的”有的说“因为这样好用”……因此,在我讲了以后幼儿就有了一种恍然大捂的神情,感到很高兴,还不时和边上的同伴那进行交流。课堂的气氛一下字就活跃了起来。

  • 大班体育综合训练活动“可爱的小青蛙”课件教案

    大班体育综合训练活动“可爱的小青蛙”课件教案

    2、让幼儿在活动中体验合作的乐趣,培养他们解决问题、克服困难的好品质,激发幼儿的团队精神。活动准备:竹筐20个(边筐高25厘米)、4张圆形大小不一的荷叶、纸皮(荷叶)每人一张活动过程:一、准备活动1、 音乐游戏“小青蛙醒来了”。教师与幼儿随着音乐做各种动作,活动身体。2、 幼儿每人选一张“荷叶”,摆在地上,进行跳进跳出动作练习,(教师提醒幼儿注意起跳时先屈膝,落地要轻)

  • 新人教版高中英语选修2Unit 2 Learning about Language教学设计

    新人教版高中英语选修2Unit 2 Learning about Language教学设计

    The activity theme of this section is to design various activities around the key words in the first text. Therefore, the activities require students to pay attention to the spelling of words. On the other hand, let students grasp the meaning of words more accurately through sentences and short texts. This kind of teaching design also helps to improve the ability of using English thinking.1. Cultivating students' ability to use word formation to induce and memorize vocabulary, and the ability to use lexical chunks to express meaning.2. Guide the students to think independently and use the correct form of words to complete sentences3. Cultivate students' habit of using lexical chunks to express language completely, guide students to draw words in sentences quickly, pay attention to word collocation, so as to accumulate more authentic expressions4. Instruct students to create sentences with the chunks.1. Enable students to use the language points in the real situation or specific contexts flexibly and appropriately.2. Guiding the Ss to use unit topic words and the sentence patterns in a richer context.Step1: Think of a word that best fits each definition.1. to remember sth2.to accept, admit, or recognize sth or the truth/existence of sth3. the process of changing sth or yourself to suit a new situation4 .to make sb feel less worried or unhappy5. a strong desire to achieve sth

  • 新人教版高中英语选修2Unit 2 Reading for writing教学设计

    新人教版高中英语选修2Unit 2 Reading for writing教学设计

    The theme of this section is to express people's views on studying abroad. With the continuous development of Chinese economic construction, especially the general improvement of people's living standards, the number of Chinese students studying abroad at their own expense is on the rise. Many students and parents turn their attention to the world and regard studying abroad as an effective way to improve their quality, broaden their horizons and master the world's advanced scientific knowledge, which is very important for the fever of going abroad. Studying abroad is also an important decision made by a family for their children. Therefore, it is of great social significance to discuss this issue. The theme of this section is the column discussion in the newspaper: the advantages and disadvantages of studying abroad. The discourse is about two parents' contribution letters on this issue. They respectively express their own positions. One thinks that the disadvantages outweigh the advantages, and the other thinks that the advantages outweigh the disadvantages. The two parents' arguments are well founded and logical. It is worth noting that the two authors do not express their views on studying abroad from an individual point of view, but from a national or even global point of view. These two articles have the characteristics of both letters and argumentative essays1.Guide the students to read these two articles, and understand the author's point of view and argument ideas2.Help the students to summarize the structure and writing methods of argumentative writing, and guides students to correctly understand the advantages and disadvantages of studying abroad3.Cultivate students' ability to analyze problems objectively, comprehensively and deeply

  • 新人教版高中英语选修2Unit 2 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 2 Using langauge-Listening教学设计

    ? B: Absolutely! Getting involved with Chinese cultural activities there definitely helped a lot. I got to practice my Chinese on a daily basis, and I could learn how native Chinese speakers spoke.? A: What do you feel is your biggest achievement?? B: Learning Chinese characters! I have learnt about 1,500 so far. When I first started, I didn't think it was even going to be possible to learn so many, but now I find that I can read signs, menus, and even some easy newspaper articles.? A: What are you most keen on?? B: I've really become keen on learning more about the Chinese culture, in particular Chinese calligraphy. As I have learnt Chinese characters, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way. ? A: Finally, what do you want to say to anyone interested in learning Chinese?? I have really become keen on learning more about the Chinese culture, in particular Chinese Calligraphy. As I have learnt Chinese character, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way.? A: Finally, what do you want to say to anyone interested in learning Chinese?? B: I'd say, give it a shot! While some aspects may be difficult, it is quite rewarding and you will be happy that you tried.? A: Thanks for your time. ? B:You're welcome.

  • 新人教版高中英语选修2Unit 2 Reading and thinking教学设计

    新人教版高中英语选修2Unit 2 Reading and thinking教学设计

    Her tutor told her to acknowledge __________ other people had said if she cited their ideas, and advised her _______(read) lots of information in order to form __________wise opinion of her own.Now halfway __________ her exchange year, Xie Lei felt much more at home in the UK. She said __________ (engage) in British culture had helped and that she had been__________ (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger __________(build) a bridge between the two countries. keys:Xie Lei, a 19­year­old Chinese student, said goodbye to her family and friends in China and boarded (board) a plane for London six months ago in order to get a business qualification. She was ambitious(ambition) to set up a business after graduation. It was the first time that she had left (leave) home.At first, Xie Lei had to adapt to life in a different country. She chose to live with a host family, who can help with her adaptation (adapt) to the new culture. When she missed home, she felt comforted (comfort) to have a second family. Also Xie Lei had to satisfy academic requirements. Her tutor told her to acknowledge what other people had said if she cited their ideas, and advised her to read lots of information in order to form a wise opinion of her own.Now halfway through her exchange year, Xie Lei felt much more at home in the UK. She said engaging (engage) in British culture had helped and that she had been involved (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger building a bridge between the two countries.

  • 新人教版高中英语选修2Unit 4 Reading and thinking教学设计

    新人教版高中英语选修2Unit 4 Reading and thinking教学设计

    【词汇精讲】highlight n.最好或最精彩的部分 vt.突出;强调;使醒目One of the highlights of the trip was seeing the Taj Mahal.这次旅行的亮点之一是参观泰姬陵。Your resume should highlight your skills and achievements.你的简历应该突出你的技能和成就。The report highlights the major problems facing society today.报告强调了当今社会所面临的主要问题。I’ve highlighted the important passages in yellow.我用黄色标出了重要段落。7.Edmonton is freezing cold in winter,with daily temperatures averaging -10 ℃.埃德蒙顿冬季寒冷,日平均气温为-10°C。【词汇精讲】freezing adj.极冷的;冰冻的Leave a basin of water outside in freezing weather.在冰冻的天气里,放一盆水在室外。It’s freezing cold outside so wear a warm coat.外面超冷的,所以穿一个暖和一点的外套吧。8.It was not until 9:30 a.m.that they finally reached the capital of Ontario,Toronto.直到上午9时30分,他们才终于到达多伦多的首府安大略省。【句式剖析】本句是一个强调句,强调的是句子的时间状语until 9:30。含有not...until...的句子的强调句为It is not until...that...,that后面的句子要用肯定形式。It was not until then that I suddenly realized nobody was happier than I was.直到那时我才突然意识到没有人比我更幸福了。

  • 新人教版高中英语选修2Unit 3 Reading for writing教学设计

    新人教版高中英语选修2Unit 3 Reading for writing教学设计

    The theme of this part is to write an article about healthy diet. Through reading and writing activities, students can accumulate knowledge about healthy diet, deepen their understanding of the theme of healthy diet, and reflect on their own eating habits. This text describes the basic principles of healthy diet. The author uses data analysis, definition, comparison, examples and other methods. It also provides a demonstration of the use of conjunctions, which provides important information reference for students to complete the next collaborative task, writing skills, vivid language materials and expressions.1. Teach Ss to learn and skillfully use the new words learned from the text.2. Develop students’ ability to understand, extract and summarize information.3. Guide students to understand the theme of healthy diet and reflect on their own eating habits.4. To guide students to analyze and understand the reading discourse from the aspects of theme content, writing structure, language expression, etc., 5. Enable Ss to write in combination with relevant topics and opinions, and to talk about their eating habits.1. Guide students to analyze and understand the reading discourse from the aspects of theme content, writing structure, language expression, etc.2. Enable them to write in combination with relevant topics and opinions, and to talk about their eating habits.3. Guide the students to use the cohesive words correctly, strengthen the textual cohesion, and make the expression fluent and the thinking clear.Step1: Warming upbrainstorm some healthy eating habits.1.Eat slowly.2.Don’t eat too much fat or sugar.3.Eat healthy food.4.Have a balanced diet.Step2: Read the passage and then sum up the main idea of each paragraph.

  • 新人教版高中英语选修2Unit 5 Reading and thinking教学设计

    新人教版高中英语选修2Unit 5 Reading and thinking教学设计

    The theme of this activity is to learn the first aid knowledge of burns. Burns is common in life, but there are some misunderstandings in manual treatment. This activity provides students with correct first aid methods, so as not to take them for granted in an emergency. This section guides students to analyze the causes of scald and help students avoid such things. From the perspective of text structure and collaborative features, the text is expository. Expository, with explanation as the main way of expression, transmits knowledge and information to readers by analyzing concepts and elaborating examples. This text arranges the information in logical order, clearly presents three parts of the content through the subtitle, accurately describes the causes, types, characteristics and first aid measures of burns, and some paragraphs use topic sentences to summarize the main idea, and the level is very clear.1. Guide students to understand the causes, types, characteristics and first aid methods of burns, through reading2. Enhance students’ ability to deal withburnss and their awareness of burns prevention3. Enable students to improve the ability to judge the types of texts accurately and to master the characteristics and writing techniques of expository texts.Guide students to understand the causes, types, characteristics and first aid methods of burns, through readingStep1: Lead in by discussing the related topic:1. What first-aid techniques do you know of ?CPR; mouth to mouth artificial respiration; the Heimlich Manoeuvre

  • 新人教版高中英语选修2Unit 5 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 5 Using langauge-Listening教学设计

    The theme of this section is to learn how to make emergency calls. Students should learn how to make emergency calls not only in China, but also in foreign countries in English, so that they can be prepared for future situations outside the home.The emergency telephone number is a vital hotline, which should be the most clear, rapid and effective communication with the acute operator.This section helps students to understand the emergency calls in some countries and the precautions for making emergency calls. Through the study of this section, students can accumulate common expressions and sentence patterns in this context. 1.Help students accumulate emergency telephone numbers in different countries and learn more about first aid2.Guide the students to understand the contents and instructions of the telephone, grasp the characteristics of the emergency telephone and the requirements of the emergency telephone.3.Guide students to understand the first aid instructions of the operators.4.Enable Ss to make simulated emergency calls with their partners in the language they have learned1. Instruct students to grasp the key information and important details of the dialogue.2. Instruct students to conduct a similar talk on the relevant topic.Step1:Look and discuss:Match the pictures below to the medical emergencies, and then discuss the questions in groups.

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