-
人教A版高中数学必修一充分条件与必要条件教学设计（2）
【例3】本例中“p是q的充分不必要条件”改为“p是q的必要不充分条件”，其他条件不变，试求m的取值范围．【答案】见解析【解析】由x2－8x－20≤0得－2≤x≤10，由x2－2x＋1－m2≤0(m>0)得1－m≤x≤1＋m(m>0)因为p是q的必要不充分条件，所以q?p，且p?/q.则{x|1－m≤x≤1＋m，m>0}?{x|－2≤x≤10}所以m>01－m≥－21＋m≤10，解得0<m≤3.即m的取值范围是(0,3]．解题技巧：（利用充分、必要、充分必要条件的关系求参数范围）(1)化简p、q两命题，(2)根据p与q的关系(充分、必要、充要条件)转化为集合间的关系，(3)利用集合间的关系建立不等关系，(4)求解参数范围．跟踪训练三3．已知P＝{x|a－4<x<a＋4}，Q＝{x|1<x<3}，“x∈P”是“x∈Q”的必要条件，求实数a的取值范围．【答案】见解析【解析】因为“x∈P”是x∈Q的必要条件，所以Q?P.所以a－4≤1a＋4≥3解得－1≤a≤5即a的取值范围是[－1,5]．五、课堂小结让学生总结本节课所学主要知识及解题技巧
小班数学教案：我会放玩具（分类）
2．有参与活动的兴趣，并愿意用语言讲述。 活动准备： 1．玩具柜1-2个。 2．玩具若干（长毛绒玩具、汽车玩具、娃娃、积木等）或幼儿自带的玩具若干。 活动过程： （一）引发幼儿活动兴趣。 1．展示玩具，认识玩具。 教师：园长老师知道我们班小朋友特别喜欢玩玩具，今天给我们送来了许多玩具， 看看有些什么玩具？（请幼儿说出玩具名称） 2．玩玩具，体验快乐。 教师鼓励幼儿分组自选玩具，自由地和玩耍或和同伴一起友好地玩。
人教版高中数学选修3排列与排列数教学设计
4.有8种不同的菜种,任选4种种在不同土质的4块地里,有 种不同的种法. 解析:将4块不同土质的地看作4个不同的位置,从8种不同的菜种中任选4种种在4块不同土质的地里,则本题即为从8个不同元素中任选4个元素的排列问题,所以不同的种法共有A_8^4 =8×7×6×5=1 680(种).答案:1 6805.用1、2、3、4、5、6、7这7个数字组成没有重复数字的四位数.(1)这些四位数中偶数有多少个?能被5整除的有多少个?(2)这些四位数中大于6 500的有多少个?解:(1)偶数的个位数只能是2、4、6,有A_3^1种排法,其他位上有A_6^3种排法,由分步乘法计数原理,知共有四位偶数A_3^1·A_6^3=360(个);能被5整除的数个位必须是5,故有A_6^3=120(个).(2)最高位上是7时大于6 500,有A_6^3种,最高位上是6时,百位上只能是7或5,故有2×A_5^2种.由分类加法计数原理知,这些四位数中大于6 500的共有A_6^3+2×A_5^2=160(个).
人教版高中数学选修3组合与组合数教学设计
解析:因为减法和除法运算中交换两个数的位置对计算结果有影响,所以属于组合的有2个.答案:B2.若A_n^2=3C_(n"-" 1)^2,则n的值为( )A.4 B.5 C.6 D.7 解析:因为A_n^2=3C_(n"-" 1)^2,所以n(n-1)=(3"(" n"-" 1")(" n"-" 2")" )/2,解得n=6.故选C.答案:C 3.若集合A={a1,a2,a3,a4,a5},则集合A的子集中含有4个元素的子集共有 个. 解析:满足要求的子集中含有4个元素,由集合中元素的无序性,知其子集个数为C_5^4=5.答案:54.平面内有12个点,其中有4个点共线,此外再无任何3点共线,以这些点为顶点,可得多少个不同的三角形?解:(方法一)我们把从共线的4个点中取点的多少作为分类的标准:第1类,共线的4个点中有2个点作为三角形的顶点,共有C_4^2·C_8^1=48(个)不同的三角形;第2类,共线的4个点中有1个点作为三角形的顶点,共有C_4^1·C_8^2=112(个)不同的三角形;第3类,共线的4个点中没有点作为三角形的顶点,共有C_8^3=56(个)不同的三角形.由分类加法计数原理,不同的三角形共有48+112+56=216(个).(方法二 间接法)C_12^3-C_4^3=220-4=216(个).
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 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 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
? 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.
人教版新目标初中英语九年级上册I like music that I can dance to教案
教学目标: 1. Express preferences2. Talk about one’s likes and dislikes and the reasons3. Learn to express one’s opinions 4. Learn to write a reply 语言功能： 1) Talk about one’s preferences, using t he relative clause2) Talk about people’s likes and dislikes and the reasons3) Talk about opinions语言结构： Relative clauses with that and who语言目标：What kind of music do you like?I like music that I can sing along with.I love singers who write their own music.We prefer music that has great lyric.重点词汇及短语：heart, photography, interest, class, whatever, miss, okay, expect, sweet, taste, itself, laboratory, cancer, increase, biscuit, main, care， prefer… to…, remind somebody of …, dance to, sing along with, be sure to, interest somebody, make somebody adj., to be honest, suit somebody, on display, catch up教学重难点：What do other people think of the different kinds of things? How to express one’s opinions? 学习方式：讨论，合作学习情感目标：通过本单元的学习，能提高学生的艺术鉴赏能力和审美情趣，并引导学生养成健康的饮食习惯。课时安排5课时第一课时：Section A: 1a-2c第二课时：Section A : 3a-4第三课时：Section B:1-2c, Self check2第四课时：Section B: 3a-4, Self check1第五课时：Self check ReadingI like music that I can dance to.
人教版新目标初中英语九年级上册I used to be afraid of the dark教案
内容提示1．本单元主要内容是学会used to结构。Used to +动词原形表示过去经常、以前常常，只用于过去式中，用来表示现在已不存在的习惯或状态。例如：They used to play football together．他们过去常在一起蹋足球。（现在不在一起踢了)2．used to的疑问形式和否定形式为Did you use to…?和I didn’t use to… 也可以用Used you to…?和I used not to…但现在多使用前者。例如：Did you used to swim in the river? 你过去常在河里游泳吗?I didn’t use to play the piano． 我以前并不经常弹钢琴。教学目标一、学习目标（Language Goal） 1．学会陈述自己过去常做的事情。2．学会陈述自己过去的爱好等。3．能够表达自己现在和过去在外表、性格、娱乐等方面的变化。4．能够表达朋友、家人等现在和过去的变化。二、语言结构（Language Structures） 1．I used to be short when I was young. 我年轻时个子很矮。 2． —Did you use to have straight hair? 你过去是直发吗？—Yes, I did. 是的。 3． —Did you use to play the piano? 你过去弹钢琴吗？—No, I didn’t. 不，我不弹。 4．I used to be afraid of dark. 我过去害怕黑暗。 5．I’m terrified of the snakes. 我害怕蛇。
人教版新目标初中英语九年级上册It must belong to Carla教案
一、Section A该部分有4个模块。第一模块围绕Whose volleyball is this? 这一话题展开思维（ 1a）、听力（1b）、口语（ 1c）训练；第二模块围绕上一模块中的话题进行听力（ 2a-2b）、口语训练（ 2c）；第三模块继续围绕前两个模块中的“making inferences”展开训练。训练形式为阅读排序（ 3a）和两人问答（3b）；第四模块仍就上一话题展开讨论。二、Section B该部分有4个模块。第一模块要求根据图画和所提供的单词写出合理的句子；第二模块在听力（ 2a-2b）和分角色口语训练（ 2c）的基础上，继续进行“推测”训练; 第三模块围绕“Strange events in Bell Tower neighborhood”这一话题展开阅读（ 3a）和写作（3b -3c）训练；第四模块以dream为话题展开小组活动。三、Self Check该部分有3个模块。第一模块以填空形式对所学词汇进行训练；第二模块就8个谚语展开阅读和讨论。
人教版高中语文必修3《劝学》教案2篇
五．研习第一段：1．诵读指导要处理好句中停顿2．请学生对照注释翻译本段重点词句：学不可以已已：停止。青，取之于蓝而青于蓝于：从；比。木直中绳中：zhàng符合，合于。虽有槁暴，不复挺者，揉使之然也有通又，揉通煣，以火烘木，使其弯曲。然：这样。翻译：故木受绳则直，金就砺则利，君子博学而日参省乎己，则知明而行无过矣。所以木材经墨线画过（再用斧锯加工）就直了，金属刀剑拿到磨刀石上（磨过）就锋利了，君子广博地学习并且每天对自己检验反省，就能智慧明达，行为没有过错了。3．本段是从哪个角度论述中心论点的？明确：本段是从学习的意义这个角度论述中心论点的。荀子认为人的知识、道德、才能都不是天生成的，而是后天不断学习获得的，学习的意义十分重大，所以学习不能停止。4．本段中几个比喻句是为了说明什么道理？学生讨论发言，教师明确：
人教版高中历史必修3宋明理学教案2篇
二、程朱理学：1、宋代“理学”的产生：（1）含义：所谓“理学”，就是用“理学”一词来指明当时两宋时期所呈现出来的儒学。广义的理学，泛指以讨论天道问题为中心的整个哲学思潮，包括各种不同的学派；狭义的理学，专指程颢、程颐、朱熹为代表的，以“理”为最高范畴的学说，称为“程朱理学”。理学是北宋政治、社会、经济发展的理论表现，是中国古代哲学长期发展的结果，是批判佛、道学说的产物。他们把“理”或“天理”视作哲学的最高范畴，认为理无所不在，不生不灭，不仅是世界的本原，也是社会生活的最高准则。在穷理方法上，程颢“主静”，强调“正心诚意”；程颐“主敬”，强调“格物致知”。在人性论上，二程主张“去人欲，存天理”，并深入阐释这一观点使之更加系统化。二程学说的出现，标志着宋代“理学”思想体系的正式形成。【合作探究】宋代“理学”兴起的社会条件：
小班数学教案：小画家（按颜色分类）
2、认识颜色标记，能按照颜色标记的提示，选择相应颜色的实物或给实物涂色。 3、乐意参加数学活动，能自己动脑完成操作活动。 活动准备： 教具：红、黄、蓝色的油画棒，红、黄、蓝色的玩具若干，三个篓子，上面分别贴有红、黄、蓝标记。 学具：操作材料人手一份，红、黄、蓝色彩色笔或油画棒。 活动过程： 一、 认识颜色及颜色标记。 1、师：小朋友，你想当一名小画家吗？小画家要用什么来画画呢？ 2、师：小朋友你们认识这些画笔的颜色吗？老师来考考你们。（师出示红、黄、蓝三色油画棒，带领大家一起认识画笔颜色。） 3、师：小朋友看！这是什么？这是颜色标记，你们认识这些颜色标记吗？（师分别用红黄蓝画笔在纸上画颜色标记，引导幼儿认识红色、黄色、蓝色。）
公路工程施工监理合同范本条文说明
一、公路工程施工监理合同通用条件第1条“定义与解释”，适用于《公路工程施工监理合同》中的全部文件，即：协议书、通用条件、专用条件、附件A、附件B、附件C以及其它补充文件或附件。二、协议书由系列文件组成，其中的其它文件和其它附件是指签约双方一致同意增加列入监理合同的文件或附件，签约时必须在协议书中具体写明。协议书所包括的文件之间如果出现矛盾，按监理合同通用条件第1.2.3条的规定，按时间顺序以最后编写或双方最后确认的文件为准。而与该文件在协议书中的排列顺序无关。三、签约双方在监理合同专用条件第6.2.1条和监理合同附件C中，约定业主问监理单位支付监理服务费用的期限和方式；在监理合同附件B中约定业主向监理单位提供工作条件的期限和种类。四、签约双方在监理合同附件A中，约定监理单位提供监理服务的形式、范围与内容；在监理会同专用条件第5.2条中，约定监理单位提供监理服务的时间和有关期限。
新人教版高中英语必修3Unit 2 Morals and Virtues教学设计二
Activity 41. Students complete the task of activity 4, then teachers and students check the answers. 2. The teacher organized the students to work together and asked them to use the tables and mind maps sorted out before to retold the important choices in Lin Qiaozhi's life and their resultsStep 5 Language points1. The teacher asks the students to read the text carefully, find out the core words and long and difficult sentences in the text and draw lines, understand the use of vocabulary, and analyze the structure of long and difficult sentences. 2. The teacher explains and summarizes the usage of core vocabulary and asks the students to take notes. 3. The teacher analyzes and explains the long and difficult sentences that the students don't understand, so that the students can understand them better. Step 6 Homework1. Read the text again, in-depth understanding of the text; 2. Master the use of core vocabulary and understand the long and difficult sentences. 3. Complete relevant exercises in the guide plan. 1、通过本节内容学习，学生是否理解和掌握阅读文本中的新词汇的意义与用法；2、通过本节内容学习，学生能否结合文本特点总结林巧稚的人生原则和人格品质特征；3、通过本节内容学习，学生能否针对人生抉择发表自己的看法；能否全面地、客观地、理性地看待问题，进而对道德和人性有更加深入的思考和理解。
新人教版高中英语必修3Unit 2 Morals and Virtues教学设计三
The joke set her crying.这个玩笑使她哭起来。Step 5 ReadingActivity 31. Students read the small text in activity 3. The teacher provides several small questions to check whether students understand the content of the text and the ideographic function of the -ing form in the text.*Where are those people?*Why did Dr Bethune come to China?*How did he help the Chinese people during the war?*What did Chairman Mao Zedong say about him?2. Ss try to rewrite some sentences using the -ing form. Then check the answers. When checking the answers, the teacher can ask different students to read the rewritten sentences and give comments.Answers:1. he became very interested in medicine, deciding to become a doctor.2. …after hearing that many people were dying in the war.3. Helping to organise hospitals, he taught doctors and nurses, and showed people how to give first aid./ He helped to organise hospitals, teaching doctors and nurses, and showing people how to give first aid.4. …praising Dr Bethune as a hero to be remembered in China.Step 6 PracticeActivity 4Students complete grammar activities 2 and 3 on page 69 of the workbook.Step 6 Homework1. Understand and master the functions and usage of the -ing form;2. Finish the other exercises in Using structures.1、通过本节内容学习，学生是否理解和掌握动词-ing形式作宾语补足语语和状语语的功能和意义；2、通过本节内容学习，学生能否正确使用动词-ing形式描述人物的行为、动作及其经历；3、通过本节内容学习，学生能否独立完成练习册和导学案中的相关练习。
新人教版高中英语必修3Unit 2 Morals and Virtues教学设计四
3.Teachers ask different groups to report the answers to the questions and ask them to try different sentence patterns.The teacher added some sentence patterns for students to refer to when writing.Step 4 Writing taskActivity 51.Write the first draft.Students first review the evaluation criteria in activity 5, and then independently complete the draft according to the outline of activity 4, the answers to the questions listed in the group discussion and report, and the reference sentence pattern.2.Change partners.The teacher guides the students to evaluate their partner's composition according to the checklist of activity 5 and proposes Suggestions for modification.3.Finalize the draft.Based on the peer evaluation, students revise their own compositions and determine the final draft.Finally, through group recommendation, the teacher selects excellent compositions for projection display or reading aloud in class, and gives comments and Suggestions.Step 5 Showing writingActivity 5T call some Ss to share their writing.Step 6 Homework1. Read the passage in this section to better understand the passage.2. Carefully understand the hierarchical structure of the article, and deeply understand the plot of the story according to the causes, process and results;3. Independently complete the relevant exercises in the guide plan.1、通过本节内容学习，学生是否理解和掌握阅读文本中的新词汇的意义与用法；2、通过本节内容学习，学生能否通过人物言行的对比分析道德故事的深层内涵；3、通过本节内容学习，学生能否根据故事的起因、经过和结果来深入理解故事的情节，从而了解文章的层次结构；4、结合现实生活案例发表自己的见解和看法,写一篇观点明确、层次分明的故事评论。
新人教版高中英语必修3Unit 2 Morals and virtues教学设计一
(2) students are divided into groups according to the requirements of activity 3. Each student shares a story of personal experience or hearing-witnessing kindness, and then selects the most touching story in the group and shares it with the whole class. Before the students share the story, the teacher can instruct them to use the words and sentence patterns in the box to express. For example, the words in the box can be classified:Time order: first of all, then, after that, later, finally logical relationship :so, however, although, butTeachers can also appropriately add some transitional language to enrich students' expression:Afterwards, afterwards, at last, in the end, eventuallySpatial order: next to, far from, on the left, in front ofOtherwise, nevertheless, as a result, therefore, furthermore, in addition, as well asSummary: in a word, in short, on the whole, to sum up, in briefStep 8 Homework1. Understand the definition of "moral dilemma" and establish a correct moral view;2. Accumulate vocabulary about attitudes and emotions in listening texts and use them to express your own views;3. Complete relevant exercises in the guide plan.1、通过本节内容学习，学生能否理解理解“道德困境”的定义；2、通过本节内容学习，学生能否通过说话人所表达的内容、说话的语气、语调等来判断其态度和情绪；3、通过本节内容学习，学生能否针对具体的道德困境发表自己的看法和见解，能否掌握听力理训练中的听力策略。
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。