必修二学案2第一单元5.6课

第一单元学习目标与方法以课程标准中”知识与能力、过程与方法、情感态度价值观”三个维度为坐标，根据“积累，整合”“感受，鉴赏”“思考，领悟”“应用，拓展”“发现，创新”这个能力目标确定本单元的学习目标。

1、展开想象的翅膀，力求身临其境体会作品描述的美景，感受作者心灵的搏动。

2、练习运用圈点、批注法鉴赏文章中的精彩语句，学习做一点圈点批注，写下心得。

3、对那些美妙的段落，反复朗读，熟读成诵，逐步增强对写景状物散文的鉴赏能力。

4、在阅读鉴赏感中，加强积累整合能力的培养，引导学生逐步掌握写景状物的相关知识，能够仿照本单元自己喜欢的写作形式，书写自己的感受。

1.荷塘月色一学习目标1、揣摩优美的艺术语言，赏析情景交融、借景抒情的艺术手法。

2、理清作品的事物线索和感情线索；结合优美的景物描写，具体分析比喻、通感的修辞效果。

3、理解作者“淡淡的喜悦”、“淡淡的哀愁”和他追求自由的精神二预习方案方法指导1、在默读领会的基础上，有感情地朗读全文。

2、了解文意，把握文章关键词句。

(一)基本任务1、背景介绍《荷塘月色》是一篇以写景为主的抒情散文，写于1927年7月。

那时作者在清华大学教书，住清华园西院。

文章里描写的荷塘就在清华园。

这一年中国接连发生了“四·一二”和“七·一五”反革命大屠杀，白色恐怖笼罩着中国大地。

朱自清处于苦闷彷徨中。

他自己也知道，“只有参加革命或反革命，才能解决这惶惶然”，但他最终还是选择了“暂时逃避的一法”（《忆佩弦》）。

但是他毕竟是一个爱国的民主主义者，面对黑暗现实，又不能安心于这种“超然”。

在《一封信》中他表白说：“这几天似乎有些异样，象一叶扁舟在无边的大海上，象一个猎人在无尽的森林里。

……心里是一团乱麻，也可以说是一团火。

似乎在挣扎着，要明白些什么，但似乎什么也没有明白。

”《荷塘月色》就正是作者自己想“超然”而又想“挣扎”的心迹的真实描摹和生动写照。

2、相关知识朱自清（1898～1948），原名自华，字佩弦，秋实。

Module 2 Unit 6 教学设计第一课时First Period（Reading）教材分析本课是本单元的第一课。

教材围绕三个著名的画家以及他们的作品展开。

大部分学生对绘画不是很了解，所以需要对相关简单的知识进行介绍并引出话题词汇。

本单元的Warm-up 部分做了很好的铺垫，学生在此基础上了解三位画家及其作品，并学会如何描述绘画作品。

本课的难点在于对话题词汇的积累，以及运用适当的词汇来描述绘画作品。

因此在几个活动中分层次帮助学生识记并运用这些词汇。

本课计划按两课时进行：第一课时的重点是获取有关画家的相关信息及话题词汇。

第二学时的重点是巩固词汇，归纳表示时间地点以及动作的介词，并在语境中学会运用。

教学内容话题： A Matter of Taste词汇: 话题词汇: realistic, abstract, scenery, landscape, light/dark, bright, soft, straight/wavy，shade短语及搭配: combine … with, be fixed on, leave the audience guessing,语法: 表时间、地点以及动作的介词第一课时First Period教学目标：At the end of this lesson, students will be able to:1.get to know three famous painters and their masterpieces;2.learn to describe paintings with the words learned教学过程：第二课时Second Period（Grammar）教学目标：At the end of this lesson, students will be able to :1. use the new words in a new context2. use prepositions of time, place and movement3. use the prepositions and topic words learned to describe a picture 教学过程：I Word BankA: Key Words about painting:colours: ________________________________________________________style: ________________________________________________________subject: ________________________________________________________shapes: ________________________________________________________lines: ________________________________________________________B: Fill in the blanks with the key words1. This is a _________ painting of _______ with ______ colours and ________shapes/_______ background.2. This is a(n) _________ painting of ___________ with _______ colours and______shapes.II Read and answer the following questions1.Who is famous for drawing pretty women?2.Who is more good at drawing simple pictures we often see in our life?3. Who held exhibitions abroad to advance Chinese art?4. Why did Chen Yifei use black as the background of Poppy?5. What is Xu Beihong’s masterpiece?III Read to learn: Find the specific informationB: How many things should be included to introduce a famous painter?C: Key words used to describe the three paintings?第二学时学案Fill in the blanks with words related to painting.For thousands of years, artists have recorded and _________ both the outside world and __________. Some have sought _____, others_____.In the middle ages, some just extended to be ________. During the Renaissance,art grew more _______, forworks of great _______ produced by Leonardo da Vinci, Michelangelo , Raphael , Durer, Andult.As times changed, so did art, yielding a rich diversity of _______ and _____. __________ were equally varied. Painting with ______, Ran created masterpieces of ______ and ______. Georges Seurat painted thousands of tiny dames. Jackson Pollock paint on ________.Painting today often seems a mixture of a _______ and ______ culture with _______ technology also contributing to _______ the art form.II Find out the prepositions of time, place and movement in the textLesson 2 Great Buildings教材分析本课是第六单元的第2课，是一节听说技能课。

5.6向心力（预习学案） 班级 姓名学习目标：1、理解向心力的概念。

2、知道向心力与哪些因素有关，理解公式的确切含义并能用来计算解决问题。

教学重点理解向心力公式的确切含义。

教学难点向心力公式的运用。

自主学习一、向心力1、向心力：做 运动的物体，会受到指向 的合力，这个合力叫做向心力。

（1）向心力总是指向圆心，始终与 垂直，只改变速度的 而不改变速度的 。

（2）向心力是根据力的 命名，可是各种性质的力，也可以是它们的 ，还可以是某个力的 。

（3）如果物体做匀速圆周运动，向心力就是物体受到的 ；如果物体做 运动（线速度大小时刻改变），向心力并非是物体受到的合外力。

（4）向心力的公式：F=ma= = 二、向心力大小的粗略验证分析课本实验，加深对向心力的理解：1、用秒表记录钢球运动若干周的 ，再通过纸上的圆测出钢球做匀速圆周运动的 ，量出绳长l。

2、用 测出钢球的质量。

3、用公式计算钢球所受的合力F 。

4、利用公式F= 算出向心力的大小。

三、变速圆周运动和一般曲线运动1、物体做变速圆周运动时，若合外力方向与 夹角小于900，此时把F 分解为两个互相 的分力：跟圆 的F t 和指向 的F n ，如图所示，其中F t 只改变v 的 ，F n 只改变v 的 ，F n 产生的加速度就是 加速度。

若F 与v 的夹角大于900时，F t 使v 减速，F n 改变v 的方向，综上可知同时具有向心加速度和 加2运动轨迹既不是直线也不是圆周的曲线运动，称为一般的曲线运动。

一般的曲线运动可以把曲线分割成许多小段，每一小段看成一小段，然后当作许多 不同的圆处理，再应用圆周运动的分析方法处理。

ωππmv rf m T r m ===222244h【预习自测】1.2．下列关于做匀速圆周运动的物体所受的向心力的说法中，正确的是 ( )A ．物体除其他的力外还要受到—个向心力的作用B ．物体所受的合外力提供向心力C ．向心力是一个恒力D ．向心力的大小—直在变化3．下列关于向心力的说法中正确的是（ ）A ．物体由于做圆周运动而产生了一个向心力B ．向心力是指向圆心方向的合力，是根据力的作用效果来命名的，但受力分析时应该画出C ．向心力可以是重力、弹力、摩擦力等各种力的合力，也可以是其中某一种力或某几种力的合力D ．向心力只改变物体运动的方向，不改变物体运动的快慢4、有一质量为m 的小物块，由碗边滑向碗底，该碗的内表面是半径为R 的圆弧且粗糙程度不同，由于摩擦力的作用，物块的运动速率恰好保持不变.则（ ）A.物块的加速度为零B.物块所受合力为零C.物块所受合力大小一定，方向改变D.物块所受合力大小、方向均一定5、甲、乙两个物体都做匀速圆周运动，其质量之比为1∶2，转动半径之比为1∶2，在相同时间里甲转过60°角，乙转过45°角。

第一单元学习目标与方法以课程标准中”知识与能力、过程与方法、情感态度价值观”三个维度为坐标，根据“积累，整合”“感受，鉴赏”“思考，领悟”“应用，拓展”“发现，创新”这个学科能力目标确定本单元的学习目标。

1、展开想象的翅膀，力求身临其境体会作品描述的美景，感受作者心灵的搏动。

2、练习运用圈点、批注法鉴赏文章中的精彩语句，学习做一点圈点批注，写下心得。

3、对那些美妙的段落，反复朗读，熟读成诵，逐步增强对写景状物散文的鉴赏能力。

4、在阅读鉴赏感中，加强积累整合能力的培养，引导学生逐步掌握写景状物的相关知识，能够仿照本单元自己喜欢的写作形式，书写自己的感受。

1.荷塘月色一学习目标1、揣摩优美的艺术语言，赏析情景交融、借景抒情的艺术手法。

2、理清作品的事物线索和感情线索；结合优美的景物描写，具体分析比喻、通感的修辞效果。

3、理解作者“淡淡的喜悦”、“淡淡的哀愁”和他追求自由的精神二预习方案方法指导1、在默读领会的基础上，有感情地朗读全文。

2、了解文意，把握文章关键词句。

(一)基本任务1、背景介绍《荷塘月色》是一篇以写景为主的抒情散文，写于1927年7月。

那时作者在清华大学教书，住清华园西院。

文章里描写的荷塘就在清华园。

这一年中国接连发生了“四·一二”和“七·一五”反革命大屠杀，白色恐怖笼罩着中国大地。

朱自清处于苦闷彷徨中。

他自己也知道，“只有参加革命或反革命，才能解决这惶惶然”，但他最终还是选择了“暂时逃避的一法”（《忆佩弦》）。

但是他毕竟是一个爱国的民主主义者，面对黑暗现实，又不能安心于这种“超然”。

在《一封信》中他表白说：“这几天似乎有些异样，象一叶扁舟在无边的大海上，象一个猎人在无尽的森林里。

……心里是一团乱麻，也可以说是一团火。

似乎在挣扎着，要明白些什么，但似乎什么也没有明白。

”《荷塘月色》就正是作者自己想“超然”而又想“挣扎”的心迹的真实描摹和生动写照。

2、相关知识朱自清（1898～1948），原名自华，字佩弦，号秋实。

【20课时】高中英语必修2人教版Unit 1-5 学案目录Unit 1 The Cultural Relics (1)Unit 2 The Olympic Games (14)Unit 3 Computers (24)Unit 4 Wild life protection (41)Unit 5 Music (54)Unit 1 The Cultural Relics第一课时Warming up ﹠vocabulary预习导学单元重点词汇重点单词: 英译汉survive ________select ________design ________decorate ______remove _______rare _________wooden _________doubt _________worth ________furniture _________remain _______consider _________pretend ________secretly ________valuable _________重点短语look into ________belong to ________in search of _______in return _________at war _________take apart _________think highly of _________less than _________be(well)worth doing _________be decorated with __________add to __________实战演练一.从方框中找出合适的单词或短语填空，注意形式in return, belong to, think highly of, survive, doubt, fancy, remove, wonder,1.Our office has ________ from New York to Chicago.2. He works hard. It’s no_________ he always takes the first place.3.I gave him some apples ____________for his help.4. Recently, I have found a rare Qing Dynasty vase. But I don’t know whether it should__________me.5.My classmates __________me because of my good performance.6.Harry took his wife to a ________restaurant for their 10th wedding anniversary.7.The house ____________the storm, because it was strong.8.There is no ____________that he will come to the wedding.二、从A,B,C,D四个选项中找出与句中划线部分意思相同的选项1.In the ancient times people used many kinds of objects as money.A. coinsB. animalsC. thingsD. notes2.The Russians were able to remove some furniture from the Amber Room.A. take something awayB. cut something offC. dig something offD. lift something off3.I have no doubt that you will pass the examination.A. don’t believeB. am sureC. hopeD. am afraid4. Doctors, scientists, and public health experts often travel to these regions to solve themystery of a long, healthy life.A. problemB. difficultyC. worryD. secret5.The amber which was selected had a beautiful yellow-brown color like honey.A. chosen carefullyB. seen carefullyC. foundD. given反馈检测选择填空1. A working party has been set up to this matter.A. look upB. look forC. look intoD. look through2. A year later, his friend was made as a sales manager, but he a salesman.A. remindedB. stillC. workedD. remained3. She to Canada next month.A. is thinking to goB. is considering to goC. is thinking goingD. is considering going4.You know ______little children can only eat _______little food.A such ;so B.so;so C.such ;such D.so; such5.I am very grateful for your assistance, and hope that one day I may be able to do something foryou .A. in turnsB. in caseC. in returnD. in use6. He has never a trade union.A. belongedB. belonging toC. belonged toD. was belonged to7.The president ___by most people in the country.A. was highly thought ofB. thought highly toC. was high thought ofD. was thought highly to8. He _____his pockets but failed to find his wallet.A. searchedB. searched forC. in search ofD. looked for. _______he is tired out.9. He hasn’t slept at all for three daysA. There is no pointB. There is no needC. It is no wonderD. It is no way_____ the radio, or you’ll not be able to put it together again.10. You’d better notA. take apartB. take awayC. take outD. take in第二课时Reading预习导学阅读理解The Great PyramidThe Great Pyramid was built thousands of years ago for a king called Khufu. It is located on the west bank of the Nile River not far from Cairo. In fact, all the pyramids along the Nile are on。

人教b版必修2教案教案标题：人教B版必修2教案教案目标：1. 理解并掌握人教B版必修2课程的核心知识和概念。

2. 培养学生的思维能力和创新能力，提高他们的学习兴趣和动力。

3. 培养学生的合作意识和团队合作能力。

教学内容：本教案将以人教B版必修2为基础，设计以下课程内容：1. 第一单元：《人教B版必修2》的导入和课程概述2. 第二单元：《人教B版必修2》的主题和主要内容3. 第三单元：《人教B版必修2》的教学方法和教学资源4. 第四单元：《人教B版必修2》的教学评价和反馈教学步骤：1. 导入和课程概述a. 引导学生回顾上节课的内容，激发学生对新课程的兴趣。

b. 简要介绍《人教B版必修2》的主题和目标，让学生对本单元的学习内容有一个整体的了解。

2. 主题和主要内容a. 通过课堂讨论和小组活动，引导学生探索《人教B版必修2》的主题和主要内容。

b. 分别介绍每个单元的核心知识和概念，帮助学生建立起对知识体系的整体认识。

3. 教学方法和教学资源a. 介绍适用于《人教B版必修2》的教学方法，如讲授、讨论、实验等。

b. 推荐相关的教学资源，如教材、参考书、多媒体资料等，帮助学生深入学习和理解课程内容。

4. 教学评价和反馈a. 设计合适的评价方式，如小测验、作业、实验报告等，以检验学生对知识的掌握程度。

b. 提供及时的反馈和指导，帮助学生在学习中发现问题并加以改进。

教学资源：1. 人教B版必修2教材及教辅材料2. 多媒体设备和相关教学软件3. 实验器材和实验材料4. 学习资源网站和在线学习平台评估方式：1. 课堂表现评价：包括学生的参与度、合作能力、思维能力等。

2. 作业和小测验评价：通过作业和小测验检验学生对知识的掌握程度。

3. 实验报告评价：评估学生在实验中的观察、记录和分析能力。

教学反思：1. 及时调整教学方法和资源，以满足学生的学习需求。

2. 注重学生的参与和合作，激发他们的学习兴趣和动力。

3. 提供个性化的学习指导，帮助学生克服困难和提高学习效果。

§1.2.1 第5课时 平面的基本性质(2)学习目标：1.了解三个推论，并能运用推论解释生活中的一些现象；2.初步学会用集合符号语言推证简单命题；3.掌握确定平面的依据．学习重点：公理及其推论的理解与运用．学习难点：用符号语言推证简单命题．学习过程：一、课前准备：自学课本P21～221.复习公理1、公理2、公理3．2.推论1： ． 推论2： ． 推论3： ．3.空间不共线的四点，可以确定平面的个数为 ．4.空间三条直线交于同一点，它们确定平面的个数为 ．5.如果α⊂a ，α⊂b ，l ∩A a =，l ∩B b =，那么下列关系成立的是 ． ①α⊂l ②α∉l ③l ∩A =α ④l ∩B =α6.设平面α与平面β交于直线l ，直线α⊂a ，直线β⊂b ，a ∩=b M ，则M______l ． 并给予证明．二、合作探究：例1.已知：三条直线两两相交，且不过同一点．求证：这三条直线共面．例2.如图，已知：平面ABD∩平面BCD=BD ，AE AB = CH BC = 13 ,AF AD = CG CD = 12求证：BD 、EF 、GH 过同一点．A B C D E H F G例3.已知：正方体ABCD-A 1B 1C 1D 1中， E 、F 分别为D 1C 1、B 1C 1的中点， AC∩BD=P ，A 1C 1∩EF=Q ．求证：⑴D 、B 、F 、E 四点共面；⑵若A 1C 交平面DBFE 于R 点, 则P 、Q 、R 三点共线．三、课堂练习：课本第22页练习第1～5题．四、回顾小结：1.确定平面的条件有四个：不共线的三点、直线与直线外一点、两条相交直线、两条平行直线；2.证明点线共面的常用方法：①纳入平面法：先确定一个平面，再证有关点、线在此平面内；②辅助平面法：先证明有关的点、线确定平面α，再证其余元素确定平面β，最后证明平面α，β是同一平面．五、课外作业：课本P27习题1.2：第1～4题 课课练六、自我测试：1.下列叙述中，正确的是 ．①对边相等的四边形一定是平面图形； ②四边相等的四边形一定是平面图形； ③有一组对边平行并且相等的四边形是平行四边形；④有一组对角相等的四边形是平行四边形．2.将下列命题改写成语言叙述，并判断它们是否正确：⑴若A ∈α，B ∉α，则直线AB α⊄；⑵若A ∈α，B ∈α，C ∈AB ，则C ∈α；⑶若A ∈α，A ∈β，A ∈a ，则α∩a =β．3.如图，在棱长为a 的正方体ABCD-A 1B 1C 1D 1中，M 、N 分别为AA 1、C 1D 1的中点，过D 、M 、N 三点的平面与直线A 1B 1交于点P ，则线段PB 1的长为_______________．4.在正方体ABCD-A 1B 1C 1D 1中，直线A 1C 交平面ABC 1D 1于点M , 试作出点M 的位置．5.已知：直线a ∥b ∥c ，且直线l 与a ，b ，c 都相交． 求证：这四条直线共面．§1.2.2 第6课时平行直线学习目标：1.了解空间两直线的三种位置关系；2.掌握公理4，并能熟练运用公理4证明两直线平行；3.了解等角定理，并能简单运用定理证明空间两角相等．学习重点：空间两直线的三种位置关系；等角定理及公理4及其简单应用．学习难点：等角定理及公理4的简单应用．学习过程：一、课前准备：自学课本P23～251.基本知识：②异面直线的概念：．③公理4：．经过直线外的一点，和这条直线平行．④等角定理：．2.下面命题中，正确结论有．①如果一个角的两边与另一个角的两边分别平行，那么这两个角相等；②如果两条相交直线和另两条相交直线分别平行，那么这两组直线所成的锐角(或直角)相等；③如果一个角的两边和另一个角的两边分别垂直，那么这两个角相等或互补；④如果两条直线同平行于第三条直线，那么这两条直线互相平行；⑤如果两条直线同垂直于第三条直线，那么这两条直线互相平行；⑥如果两条直线和第三条直线相交成等角，那么这两条直线平行．3.正方体ABCD-A1B1C1D1中，E，F，G，H分别为AA1，CC1，C1D1，D1A1的中点，则四边形EFGH的形状是___________________．4.过如图长方体木块中BC中点P作A 1 C 1的平行线二、合作探究：例1.在长方体ABCD-A1B1C1D1中，E，F分别是棱AA1和棱CC1的中点．求证：EB1∥DF，ED∥B1F．例2.已知空间四边形ABCD ，E ，H 分别是AB ，AD 的中点，F ，G 分别是CB ，CD 上的点，且CF CB ＝CG CD ＝23．求证：四边形EFGH 是梯形．引申：⑴若BD ＝a ，则梯形的中位线的长是多少？⑵求证：EF 、GH 的交点在AC 所在直线上．⑶已知空间四边形ABCD ，P 、Q 分别是AB 、CD 的中点．求证：2 PQ ＜AC ＋BD ．例3.如图，已知线段AA ′、BB ′、CC ′ 相交于O ，且OC C O OB B O OA A O '='='.求证：△ABC ∽△A ′B ′C ′.三、课堂练习：课本第25页练习第1、2、3题．四、回顾小结：1.空间两直线的三种位置关系：平行、相交、异面；2.平面几何中成立的结论或定理等，在用于非平面图形时，须先证后用．五、课外作业：课课练六、自我测试：1.已知：棱长为a 的正方体ABCD-A 1B 1C 1D 1中，M ，N 分别为CD ，AD 的中点． ①求证：四边形MNA 1C 1是梯形； ②求四边形MNA 1C 1的面积．2.在三棱锥A-BCD 中，E 、F ，G ，H 分别是边AB ，BC ，CD ，DA 的中点．⑴求证：四边形EFGH 是平行四边形； ⑵若AC ＝BD ，求证：四边形EFGH 为菱形； ⑶当AC 与BD 满足什么条件时，四边形EFGH 是正方形(不需要证明)．。

Module 2 Unit 5 Music ( Warmi ng up & Readi ng)Part I Warmi ng up1. What would you like to do if you are free today? _______ ______________________ __________2. Ca n you n ame any music style?3. 根据相应的英文描述给出音乐形式。

A. a type of music that people consider to be serious and that has a value that continues fora long time(classical music)B. a style of music which has a strong loud beat ( rock ' n' roll)C. a large group of people play ing many differe nt kinds of musical in strume nts together, led bya con ductor ( orchestra)D. a type of popular music in the style of the traditional music of the southern and western U.S.(country music)E. a type of popular music in which the words of a song are not sung, but spoke n in time to musicwith a steady beat ( rap)F. traditi onal music from a particular coun try, regi on, or com munity ( folk music)Practice : Listen and see if you can guess which music matches which picture. ( on PPT ) Part II Pre-readi ngHave you heard about any of the famous bands in the world? List some if you have.Part III Read ing1. First read ingTask 1)Match each part with main idea of paragraphsParagraph 1: Many people want to be famous as sin gers or musicia ns.Paragraph 2: How the Mon kees became popular and how they developed as a real band.Paragraph 3: This is how most bands start.Paragraph 4: The Mon kees started in a differe nt way.Task 2) Join the correct parts of the sentences together. P35 Ex.12. Second read ingTask 1)Read paragraphs 1 and 2 and tell whether the following are true (T) or false (F).1. A famous sin ger or musicia n usually bel ongs to a band. F2. If you sing karaoke, it will be easier for you to be rich and famous. F3. Many musicia ns form a band because of their com mon in terest in music. T4. Play ing music to passers-by in the street is the first step to fame. F5. Whe n performers make records and sell milli ons of copies, they are successful.Task 2) Read paragraphs 3 and 4 and fill in the bla nks with proper words.备注:Choose the best an swer.1. What does the title of the passage mean?A. The band wasn ' t a famous one.B. The band was formed in a differe nt way.C. The band didn ' t play their own music.D. The band wasn ' t supported buy his fans.2. How many musicians were there when the band was formed at the beginning?A. FourB. ThreeC. TwoD. One3. Which of the followin g is not correct about “ The Mon kees"?A. At first, The Mon kees copied the style of The Beatles.B. They were not so popular as The Beatles.C. Their performa nces were really popular and attractive because of their jokes.D. They were copied by other groups and supported by their fans.4. Post read ingTask 1)Read the text carefully, translate the Chinese questions into English and then answer thesequesti ons.1. 如果学生成立乐队在街上表演有何好处？Questi on 1: _ What are the adva ntages if people form a band to play in the street?Answer 1: ___ They can earn some extra money and this can also give them a chanee to realize theirdream of being famous.2. “门基乐队”在何时解散，在何时重新相聚?Question 2: When did “The MonkeeS' break up and when did it reunite?Answer 2: ___ “The MonkeeS' broke up in about 1970 and it reunited in the mid -1980s.3•“门基乐队”在他们的工作上为什么成功？Question3:_ Why was “The MonkeeS' successful in their work ?Answer 3: ___ Because they were serious about their work and they also worked very hard.备注:Part IV SummaryIf we are __hon est with ________ ourselves, most of us have _ dreamed ofbeing famous sometimes in our lives. Most musicians often meet and _form a band. Sometimes they play inthe street to passers-by so that they can earn some extra money and this also givesthem a __ cha nee to realize their dreams. There was once a band started in a differe nt way. Itwas called the Monkees. “The Monkees" was formed in 1960s in the USA. It began as a TV show.The m___ usicians of the band played j_ okes as well as played music. In fact, it wasn' t a r_ ealband at the very beg inning. Most of the musicia ns were only a _ctors who p_ rete ndedto sing the songs when they were on the stage. They became popular because of their a_ ttractiveperforma nces. After a yearor so, they became more s_ erious about their work and started to play their own i_ _nstruments and write their own songs. However, the band b_roke up in about 1970 and r_eunited in the mid-1980s.Part V Discussion :Now in pairs discuss the following questions with your partner1. What kind of music do you like?2. Which sin ger do you like best and why? These phrases will help you.I prefer, Why do you prefer,I like ,best because, I hate,.My favorite sin ger is, I enjoy liste ning to,I am fond of, I don ' t like, very much.并非乐队的乐队你曾经想过要成为一个乐队里有名的歌手或音乐家吗？你是否曾梦想过在音乐会上面对成千上万的观众演唱，观众欣赏你的歌唱为你鼓掌呢？你唱卡拉时是否假装自己就是像宋祖英或刘欢一样著名的歌星呢？说实在的，很多人把名和利看得很重。

5.4圆周运动【学习目标】1、知道什么是圆周运动，什么是匀速圆周运动2、理解什么是线速度、角速度和周期及线速度、角速度和周期之间的关系3、能在具体的情境中确定线速度和角速度与半径的关系【学习重点】理解线速度、角速度和周期，匀速圆周运动线速度、角速度及周期之间的关系【学习难点】1.对匀速圆周运动是变速运动的理解2.线速度、角速度及周期之间的关系【课时安排】1课时【学法指导】1．自主探究、交流讨论、自主归纳2．课堂上分组讨论本课时合作探究题【知识链接】教材通过实例，先介绍了什么是圆周运动，教材首先明确要研究圆周运动中的最简单的情况，匀速圆周运动，接着从描述匀速圆周运动的快慢的角度引入线速度、角速度的概念及周期、转速等概念，及他们之间的联系设计的【学习过程】一、问题预设温故：1．直线运动的速度等于的比值，公式v＝Δx.Δt 2．在定义直线运动的瞬时速度时引入了的思想，当Δt→0时，Δt时间内的速度即可近似看作Δt时间内某时刻的速度．3．物体做曲线运动的条件：曲线是变速运动，有加速度．4．在数学中，可用弧度来表示角的大小，它等于的比值．公式：新知：5．线速度定义：匀速圆周运动：对线速度的理解：(1)线速度描述的是质点沿圆弧运动的快慢程度．(2)线速度是物体做匀速圆周运动的瞬时速度．(3)线速度是矢量，它既有大小，也有方向(大小：v＝ΔsΔt，方向：在圆周各点的切线方向)．(4)匀速圆周运动是一种非匀速运动，因为线速度的方向在时刻改变．(5)线速度的单位：m/s.6．角速度是描述物体_的物理量．角速度等于_和_____的比值．角速度的单位是．匀速圆周运动是角速度的圆周运动．注：技术中常用转速来描述转动物体上质点做圆周运动的快慢．转速是指物体单位时间所转过的圈数，用符号n表示，单位为转每秒(r/s)，或转每分(r/min)．7．周期：二、问题检测1．下列说法正确的是（)A．匀速圆周运动是一种匀速运动B．匀速圆周运动是一种匀变速运动C．匀速圆周运动是一种变加速运动D．做匀速圆周运动的物体在相等的时间内通过的弧长相等2．一运动员绕圆形跑道做圆周运动，他的速度处处不为零，则下列说法错误的是(）A．任何时刻他所受的合力一定不为零B．任何时刻他的加速度一定不为零C．他的速度大小一定不断变化D．他的速度方向一定不断改变3．下列关于匀速圆周运动的说法中，正确的是（）A．是速度不变的运动B．是角速度不变的运动C．是角速度不断变化的运动D．是相对圆心位移不变的运动4．关于匀速圆周运动的判断，下列说法中正确的是（）A.角速度不变B.线速度不变C.向心加速度不变D周期不变5．一个质点做匀速圆周运动时,它在任意相等的时间内()A通过的弧长相等B通过的位移相等C转过的角度相等D速度的变化相等.三、问题生成四、问题探究问题探究一、描述圆周运动的各物理量之间的关系线速度和角速度的关系线速度与周期的关系角速度与周期的关系考虑频率f，则有ω＝________，v＝2πfr.而频率f与转速n的关系为f＝n.以上各物理量关系有v＝ωr＝2πTr＝2πfr＝2πnr.例11．甲、乙两个做匀速圆周运动的质点，它们的角速度之比为3∶1，线速度之比为2∶3，那么下列说法中正确的是()A．它们的半径之比为2∶9B．它们的半径之比为1∶2C．它们的周期之比为2∶3D．它们的周期之比为1∶32．一个圆环，以竖直直径AB为轴匀速转动，如图所示，则环上M、N两点的线速度的大小之比v M∶v N＝；角速度之比ωM∶ωN＝；周期之比T M∶T N＝.3．一汽车发动机的曲轴每分钟转2400周，求：(1)曲轴转动的周期与角速度；(2)距转轴r＝0.2m点的线速度．问题探究二、三种典型传动方式的分析[问题情境]请同学们分析下列三种传动方式的特点，并回答有关问题．1．共轴转动如图所示，A点和B点在同轴的一个“圆盘”上，但到轴(圆心)的距离不同，当“圆盘”转动时，A点和B点沿着不同半径的圆周运动，它们的半径分别为r和R，且r<R.此传动方式有什么特点，A、B两点的角速度、线速度和周期之间有什么关系？2．皮带传动如图所示，A点和B点分别是两个轮子边缘上的点，两个轮子用皮带连起来，并且皮带不打滑．此传动方式有什么特点？A、B两点的线速度、角速度和周期之间有什么关系？3．齿轮运动如图所示，A点和B点分别是两个齿轮边缘上的点，两个齿轮的轮齿啮合．两个齿轮在同一时间内转过的齿数相等，或者说A、B两个点的线速度相等，但它们的转动方向恰好相反，即当A顺时针转动时，B逆时针转动．用n1、n2分别表示齿轮的齿数，请分析A、B两点的v，ω和T的关系？例2如图所示的皮带传动装置(传动皮带是绷紧的且运动中不打滑)中，主动轮O1的半径为r1，从动轮O2有大小两轮固定在一个轴心O2上，半径分别为r3、r2，已知r3＝2r1，r2＝1.5r1，A、B、C分别是三个轮边缘上的点，则当整个传动装置正常工作时，A、B、C三点的线速度之比为________；角速度之比为________；周期之比为________．五、问题预留如图所示,半径为R的圆轮在竖直面内绕O轴匀速转动,O轴离地面高为2R,轮上a、b两点与O点连线相互垂直，a、b两点均粘有一小物体，当a点转至最低位置时，a、b两点处的小物体同时脱落，经过相同时间落到水平地面上.（1）试判断圆轮的转动方向.（2）求圆轮转动的角速度的大小.【随堂巩固】1．关于匀速圆周运动，下列说法正确的是()A．匀速圆周运动是变速运动B．匀速圆周运动的速率不变C．任意相等时间内通过的位移相等D．任意相等时间内通过的路程相等2．一个物体以角速度ω做匀速圆周运动时，下列说法中正确的是（）A．轨道半径越大线速度越大B．轨道半径越大线速度越小C．轨道半径越大周期越大D．轨道半径越大周期越小3．关于角速度和线速度，说法正确的是A半径一定，角速度与线速度成反比B半径一定，角速度与线速度成正比C．线速度一定，角速度与半径成正比D．角速度一定，线速度与半径成反比4．对如图所示的皮带传动装置，下列说法中正确的是（）A.A轮带动B轮沿逆时针方向旋转B.B轮带动A轮沿逆时针方向旋转C.C轮带动D轮沿顺时针方向旋转D.D轮带动C轮沿顺时针方向旋转5.由于地球的自转，则关于地球上的物体的角速度、线速度的大小，以下说法正确的是()A.在赤道上的物体线速度最大B.在两极上的物体线速度最大C.赤道上物体的角速度最大D.处于北京和南京的物体的角速度大小相等6．如图所示为某一皮带传动装置，主动轮的半径为r1，从动轮的半径为r2.已知主动轮做顺时针转动，转速为n，转动过程中皮带不打滑．下列说法正确的是()A．从动轮做顺时针转动B．从动轮做逆时针转动C．从动轮的转速为r1r2n D．从动轮的转速为r2r1n5.5向心加速度【学习目标】1．理解速度变化量及向心加速度的概念，2．知道向心加速度和线速度、角速度的关系．3．能够运用向心加速度公式求解有关问题．【学习重点】1．理解匀速圆周运动中加速度的产生原因，掌握向心加速度的确定方法和计算公式．2．向心加速度方向的确定过程和向心加速度公式的推导与应用．【学习难点】向心加速度方向的确定过程和向心加速度公式的推导与应用．【课时安排】1课时【学法指导】1．自主探究、交流讨论、自主归纳2．课堂上分组讨论本课时合作探究题【学习过程】一、问题预设温故：1．加速度是表示____________的物理量，它等于____________________________的比值．在直线运动中，v0表示初速度，v表示末速度，则速度的变化量Δv＝__________，加速度公式a ＝______________，其方向与速度变化量方向________．2．在直线运动中，取初速度v0方向为正方向，如果速度增大，末速度v大于初速度v0，则Δv ＝v－v0____0(填“>”或“<”)，其方向与初速度方向______；如果速度减小，Δv＝v－v0____0，其方向与初速度方向______．3．在曲线运动中，当合外力的方向与初速度方向成锐角时，物体速度将______，同时速度方向__________．当合外力的方向与初速度方向成钝角时，物体速度将______，同时速度方向__________.新知：4．做匀速圆周运动的物体，加速度的方向指向圆心，这个加速度称为向心加速度．5．向心加速度的大小的表达式：a n＝v22.r＝rω6．向心加速度的方向始终与线速度方向________，只改变速度______，不改变速度的______；7．向心加速度的方向始终指向圆心，方向时刻改变，是一个变加速度，所以匀速圆周运动不是__________运动，而是____________运动；8．向心加速度与圆周运动的半径r的关系：根据a n＝v22可知，在v一定时，a n与r成r＝rω________；在ω一定时，a n与r成________．二、问题检测1．下列关于向心加速度的说法中正确的是()A．向心加速度描述做匀速圆周运动的物体速率改变的快慢B．向心加速度描述做匀速圆周运动的物体角速度变化的快慢C．向心加速度描述做匀速圆周运动物体的线速度方向变化的快慢D．做匀速圆周运动物体的向心加速度不变2．关于向心加速度，以下说法中正确的是()A．向心加速度的方向始终与速度方向垂直B．向心加速度的方向保持不变C．物体做圆周运动时的加速度方向始终指向圆心D．物体做匀速圆周运动时的加速度方向始终指向圆心3．关于匀速圆周运动的说法，正确的是()A．匀速圆周运动是匀速运动B．匀速圆周运动是匀变速运动C．匀速圆周运动是加速度不变的运动D．匀速圆周运动是加速度不断改变的运动4.一物体在水平面内沿半径R=20cm的圆形轨道做匀速圆周运动，它的向心加速度为0.2m/S2，那么，它的线速度V=_______m/s，角速度为_______rad/s，周期为______s。

漯河二高一年级英语导学案Book 2 Unit1 Cultural relics高一备课组黄晓杰安新胜王瑞娟常凤民吴桂琴Ⅰ.Teaching aims and demands (教学目的与要求)1.Mainly study the following words:rare, valuable, survive, dynasty, in search of, select, style, design, decorate, belong to, in return, at war, remove, less than, doubt, worth, local, take apart, entrance, think hight of, informal and so on.2.Learn asking for opinions and giving opinions.①Do/don’t you think that…?Why/Why not…?②In my opinion…I don’t think/think…3.Study grammarRestrictive Attributive Clause and Non-Restrictive Attributive Clause.4.Learn about famous cultural relics in China and abroad and cultural relics protection through studying this unit.Ⅱ.Teaching main and difficult points(教学重难点)1.in ruturn, belong to, in search of, less than, think hight of2.have/get sth. Donecould have done sth.3.The Attributive ClauseⅢ.Teaching methodCooperation study by group.Ⅳ.Teaching aids(教具)a computer and a recorderⅤ.Teaching period division (课时分配)5课时【教学目标】1、扎实掌握本单元单词、短语和句型的基本用法。

高一英语必修二Unit 2导学案本资料为woRD文档，请点击下载地址下载全文下载地址课件www.5y 学习目标:学习目标：本单元有52个词汇，其中39个课表词汇、13个是重点词汇。

自主学习，合作探究，寻求构词规律和语音特点，掌握课表词汇。

学法指导：本节课的重点是记忆课表词汇，以unit2单元词汇表为根本，把导学案作为载体。

要真正掌握词义和词汇的用法，必须通过有情景的课文学习，并结合听，说，读，写等语言实践才能达到我们的学习目的。

第一部分：预习案&#1030;.学习语音知识，巧记英语单词学法指导：大声读出下面的单词音标，参考课本90-91页的单词表写出它们对应的单词、汉语意思及词性，加油！[k&#601;m'pi&#720;t]_______________________[k&#601; m'pet&#618;t&#601;]____________________________ ['medl]_________________________[ɡri:s]____________________________[ɡri:k]_________________________['m&aelig;d&#658;&#618;kl]_________________________ ___['be&#618;s&#618;s]_________________________[&#601; d'm&#618;t]_________________________[h&#601;&#650;st]_________________________[r&#618;'ple&#618;s]_________________________[t&#643;ɑ:d&#658;]_________________________['f&#618;z&#618; kl]_________________________★成音节：辅音+/l/、/m/、/n/，在词尾非重读的情况下，/l/、/m/、/n/与前面的辅音结合构成音节。

必修二 Unit2课文学案必修二Unit2 -链接高考语法填空（一） AN INTERVIEWPausanias, 1 was a Greek writer about 2,000 years ago, has come on a 2 (magic) journey on March 18th 2021 3 (find) out about the present-day Olympic Games. He is now interviewing Li Yan, a volunteer for the 2021 Olympic Games.P: My name is Pausanias. I lived in 4 you call “Ancient Greece” and I used to write about the Olympic Games a long time ago. I’ve come toyour time to find out about the present-day Olympic Games because I know thatin 2021 they 5 (hold) in my homeland. May I ask you some questions about the modern Olympics?L: Good heavens! Have you really come from so long ago? 6 ofcourse you can ask any questions you like. What would you like to know? P: How often do you hold your Games?L: Every four years. There are two main sets of Games-the Winter and Summer Olympics, and both are held every four years 7 a regular basis. The Winter Olympics are 8 (usual) held two years before the Summer Games. Only athletes who have reached 9 agreed standard for their event will be admitted as 10 (compete). They may come from anywhere in the world.语法填空（二）P: Winter Games? How can the runners enjoy 1 (compete) in winter? And what about the horses?L: Oh no! There are no running races or horse riding events. Instead there are 2 (compete) like skiing and ice skating which need snow and ice. That’s 3 they’re called the Winter Olympics. 4 is in the Summer Olympics that you have the running races, together with swimming,sailing and all the team sports.P: I see. Earlier you said that athletes 5 (invite) from all over the world. 6 you mean the Greek world? Our Greek cities used to compete 7 each other just for the honour of winning. No othercountries could join in, 8 could slaves or women!L: Nowadays any country can take part if their athletes 9 (be)good enough. There are over 250 sports and each on has its own standard. Women are not only allowed, 10play a very important role in gymnastics, athletics, team sports and ?语法填空（三）P: Please wait 1 minute! All those events, all those countriesand even women taking part! Where are all the athletes housed?L: For each Olympics, a special village is built for them 2 (live) in, a main reception building, several stadiums for competitions, and a gymnasium as well. P: That sounds very expensive. Does anyone want to hostthe Olympic Games?L: As a 3 of fact, every country wants the opportunity. It’s a great responsibility but also a great honour 4 (choose). There’s as much competition among countries to host the Olympics 5 to winOlympic medals. The 2021 Olympics will be held in Beijing, China. Did you know that? P: Oh yes! You must be very proud.L: Certainly. And after that the 2021 Olympics 6 (hold) in London. They have already started planning for 7 . A new village for the athletes and all the stadiums will be built to the east of London. New medals will be designed of course and ?P: Did you say medals? So even the olive wreath has been replaced! Oh dear! Do you compete 8 prize money too?L: No, we don’t. it’s still all about 9 (be) able to run faster, jump higher and throw further. That’s the motto of the Olympics, you know-“Swifter, Higher and Stronger.” P: Well, that’s good news. How 10 (interest)! Thank you so much for your time.短文改错（一） THE STORY OF ATLANTAAtlanta was the Greek princess. She was very beautiful and could ranfaster than any man in Greece. But she was not allowed run and win glory for himself in the Olympic Games. She was very angry that she said to her father that she would not marry anyone that could not run faster than her. Her father said that she must marry, so Atlanta make a bargain with him. She said to him, “These are my rule. When a man says he wants to marry with me, I will runagainst him. If he cannot run as faster as me, he will be killed. No one will be pardoned.”短文改错（二）Much kings and princes wanted to marry Atlanta, but when they heard of rules they knew itwas hopeless. So many of them sad went home, but other stayed to run the race. There was the man called Hippomenes who was amazing when he heard of Atlanta’s rules, “Why are these men so foolishly?” he thought. “Why will they let themselves be killed because of they cannot run fast as this princess?” However, when she see Atlanta come out of her house to run, Hippomenes changed her mind. “ I will marry Atlanta--or die!” he said.短文改错（三）The race started and although the man ran very fast, Atlanta ran fast. As Hippomenes watched he thought, “What can I run as fast as Atlanta?” He went to ask the Greek Godness of Love to help. She promised to help him and give him three golden apple. She said, “Throw an apple in the front of Atlanta when she is running past. When she stops to pick up, you will be able to run past her and win.”Hippomenes took the app les so went to the King. He said, “ I want marry Atlanta .” The King was sadly to see another man die, but Hippomenes said, “I will marry her------or die!” So the race began.感谢您的阅读，祝您生活愉快。