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新人教版高中英语选修2Unit 1 Science and Scientists-Learning about Language教学设计
Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention，the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys： 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat
新人教版高中英语选修2Unit 1 Science and Scientists-Reading and thinking教学设计
Step 5： After learning the text, discuss with your peers about the following questions:1.John Snow believed Idea 2 was right. How did he finally prove it?2. Do you think John Snow would have solved this problem without the map?3. Cholera is a 19th century disease. What disease do you think is similar to cholera today?SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.keys:1. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.2. No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3. SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.Step 6: Consolidate what you have learned by filling in the blanks:John Snow was a well-known _1___ in London in the _2__ century. He wanted to find the _3_____ of cholera in order to help people ___4_____ it. In 1854 when a cholera __5__ London, he began to gather information. He ___6__ on a map ___7___ all the dead people had lived and he found that many people who had ___8____ (drink) the dirty water from the __9____ died. So he decided that the polluted water ___10____ cholera. He suggested that the ___11__ of all water supplies should be _12______ and new methods of dealing with ____13___ water be found. Finally, “King Cholera” was __14_____.Keys: 1. doctor 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk 9.pump 10.carried 11.source 12.examined 13.polluted 14.defeatedHomework: Retell the text after class and preview its language points
新人教版高中英语选修2Unit 1 Science and Scientists-Using langauge教学设计
This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food coloring with them, making it look like the colors are quickly moving to escape from the soap.Listening text:? Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?? Bill: Much better, thanks. But how was it?? Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!? Bill: A hall of mirrors can be a lot of fun. What else did they have?? Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!? Bill: Come on, tell me!? Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!? Bill: Oh, I wish I had been there. Tell me more!? Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.? Bill: It all sounds so cool. I wish I could have gone with you? Judy: I know, but we can go together this weekend. I'd love to go there again!? Bill: That sounds like a great idea!
新人教版高中英语选修2Unit 3 Food and Culture-Discovering useful structures教学设计
The newspaper reported more than 100 people had been killed in the thunderstorm.报纸报道说有一百多人在暴风雨中丧生。(2)before、when、by the time、until、after、once等引导的时间状语从句的谓语是一般过去时，以及by、before后面接过去的时间时，主句动作发生在从句的动作或过去的时间之前且表示被动时，要用过去完成时的被动语态。By the time my brother was 10, he had been sent to Italy.我弟弟10岁前就已经被送到意大利了。Tons of rice had been produced by the end of last month. 到上月底已生产了好几吨大米。(3) It was the first/second/last ... time that ...句中that引导的定语从句中，主语与谓语构成被动关系时，要用过去完成时的被动语态。It was the first time that I had seen the night fact to face in one and a half years. 这是我一年半以来第一次亲眼目睹夜晚的景色。(4)在虚拟语气中，条件句表示与过去事实相反，且主语与谓语构成被动关系时，要用过去完成时的被动语态。If I had been instructed by him earlier, I would have finished the task.如果我早一点得到他的指示，我早就完成这项任务了。If I had hurried, I wouldn't have missed the train.如果我快点的话，我就不会误了火车。If you had been at the party, you would have met him. 如果你去了晚会，你就会见到他的。
新人教版高中英语选修2Unit 3 Food and Culture-Reading and thinking教学设计
The discourse explores the link between food and culture from a foreign’s perspective and it records some authentic Chinese food and illustrates the cultural meaning, gerography features and historic tradition that the food reflects. It is aimed to lead students to understand and think about the connection between food and culture. While teaching, the teacher should instruct students to find out the writing order and the writer’s experieces and feelings towards Chinese food and culture.1.Guide the students to read the text, sort out the information and dig out the topic.2.Understand the cultural connotation, regional characteristics and historical tradition of Chinese cuisine3.Understand and explore the relationship between food and people's personality4.Guide the students to use the cohesive words in the text5.Lead students to accurately grasp the real meaning of the information and improve the overall understanding ability by understanding the implied meaning behind the text.1. Enable the Ss to understand the structure and the writing style of the passage well.2. Lead the Ss to understand and think further about the connection between food and geography and local character traits.Step1: Prediction before reading. Before you read, look at the title, and the picture. What do you think this article is about?keys:It is about various culture and cuisine about a place or some countries.
新人教版高中英语选修2Unit 5 First Aid-Discovering useful structures教学设计
You have no excuse for not going.你没有理由不去。He was punished for not having finished his homework.他因未完成作业而受到惩罚。2．动词ing形式复合结构由物主代词或人称代词宾格、名词所有格或普通格加动词ing，即“sb./sb.'s＋doing”构成。动词ing形式的复合结构实际上是给动词ing形式加了一个逻辑主语。动词ing形式的复合结构有四种形式：①形容词性物主代词＋动词ing②名词所有格＋动词ing③代词宾格＋动词ing④名词＋动词ingHer coming to help encouraged all of us.她来帮忙鼓舞了我们所有人。The baby was made awake by the door suddenly shutting.这个婴儿被突然的关门声吵醒了。Can you imagine him/Jack cooking at home?你能想象他/杰克在家做饭的样子吗？无生命名词无论是作主语还是作宾语都不能用第②种形式。Tom's winning first prize last year impressed me a lot.汤姆去年得了一等奖使我印象深刻。Do you mind my/me/Jack's/Jack leaving now?你介意我/杰克现在离开吗？Excuse me for my not coming on time．很抱歉我没能按时来。His father's being ill made him worried.他父亲病了，他很担心。We are looking forward to the singer's/the singer to give us a concert.我们盼望着这位歌手来给我们举办一场演唱会。
人教版高中数学选择性必修二等比数列的概念 (2) 教学设计
二、典例解析例4. 用 10 000元购买某个理财产品一年.（1）若以月利率0.400%的复利计息，12个月能获得多少利息（精确到1元）？（2）若以季度复利计息，存4个季度，则当每季度利率为多少时，按季结算的利息不少于按月结算的利息（精确到10^(-5)）？分析：复利是指把前一期的利息与本金之和算作本金，再计算下一期的利息.所以若原始本金为a元，每期的利率为r ，则从第一期开始，各期的本利和a , a(1+r)，a(1+r)^2…构成等比数列.解：（1）设这笔钱存 n 个月以后的本利和组成一个数列{a_n }，则{a_n }是等比数列，首项a_1=10^4 (1+0.400%)，公比 q=1+0.400%，所以a_12=a_1 q^11 〖=10〗^4 (1+0.400%)^12≈10 490.7.所以，12个月后的利息为10 490.7-10^4≈491（元）.解：（2）设季度利率为 r ，这笔钱存 n 个季度以后的本利和组成一个数列{b_n }，则{b_n }也是一个等比数列，首项 b_1=10^4 (1+r)，公比为1+r，于是 b_4=10^4 (1+r)^4.
人教版高中数学选择性必修二等差数列的概念（2）教学设计
二、典例解析例3.某公司购置了一台价值为220万元的设备，随着设备在使用过程中老化，其价值会逐年减少.经验表明，每经过一年其价值会减少d(d为正常数）万元.已知这台设备的使用年限为10年，超过10年 ，它的价值将低于购进价值的5%，设备将报废.请确定d的范围.分析：该设备使用n年后的价值构成数列{an}，由题意可知，an＝an－1－d (n≥2). 即：an－an－1＝－d.所以{an}为公差为－d的等差数列.10年之内（含10年），该设备的价值不小于（220×5%=）11万元；10年后，该设备的价值需小于11万元．利用{an}的通项公式列不等式求解．解：设使用n年后，这台设备的价值为an万元，则可得数列{an}．由已知条件，得an＝an－1－d（n≥2）．所以数列{an}是一个公差为－d的等差数列.因为a1＝220－d，所以an＝220－d＋(n－1)(－d)＝220－nd. 由题意，得a10≥11，a11＜11. 即：{█("220－10d≥11" @"220－11d＜11" )┤解得19<d≤20.9所以，d的求值范围为19<d≤20.9
人教版高中数学选择性必修二等比数列的前n项和公式 (2) 教学设计
二、典例解析例10. 如图，正方形ABCD 的边长为5cm ，取正方形ABCD 各边的中点E,F,G,H, 作第2个正方形 EFGH，然后再取正方形EFGH各边的中点I,J,K,L，作第3个正方形IJKL ，依此方法一直继续下去. (1) 求从正方形ABCD 开始，连续10个正方形的面积之和；(2) 如果这个作图过程可以一直继续下去，那么所有这些正方形的面积之和将趋近于多少？分析：可以利用数列表示各正方形的面积，根据条件可知，这是一个等比数列。解：设正方形的面积为a_1，后续各正方形的面积依次为a_2, a_(3, ) 〖…,a〗_n,…，则a_1=25,由于第k+1个正方形的顶点分别是第k个正方形各边的中点，所以a_(k+1)=〖1/2 a〗_k,因此{a_n}，是以25为首项，1/2为公比的等比数列.设{a_n}的前项和为S_n（1）S_10=(25×[1-(1/2)^10 ] )/("1 " -1/2)=50×[1-(1/2)^10 ]=25575/512所以，前10个正方形的面积之和为25575/512cm^2.(2)当无限增大时，无限趋近于所有正方形的面积和
人教版高中数学选择性必修二等差数列的前n项和公式（2）教学设计
课前小测1．思考辨析(1)若Sn为等差数列{an}的前n项和，则数列Snn也是等差数列．( )(2)若a1>0，d<0，则等差数列中所有正项之和最大．( )(3)在等差数列中，Sn是其前n项和，则有S2n－1＝(2n－1)an.( )[答案] (1)√ (2)√ (3)√2．在项数为2n＋1的等差数列中，所有奇数项的和为165，所有偶数项的和为150，则n等于( )A．9 B．10 C．11 D．12B [∵S奇S偶＝n＋1n，∴165150＝n＋1n.∴n＝10.故选B项．]3．等差数列{an}中，S2＝4，S4＝9，则S6＝________.15 [由S2，S4－S2，S6－S4成等差数列得2(S4－S2)＝S2＋(S6－S4)解得S6＝15.]4．已知数列{an}的通项公式是an＝2n－48，则Sn取得最小值时，n为________.23或24 [由an≤0即2n－48≤0得n≤24.∴所有负项的和最小，即n＝23或24.]二、典例解析例8.某校新建一个报告厅，要求容纳800个座位，报告厅共有20排座位，从第2排起后一排都比前一排多两个座位. 问第1排应安排多少个座位？分析：将第1排到第20排的座位数依次排成一列，构成数列{an} ，设数列{an} 的前n项和为S_n。
人教版高中数学选修3离散型随机变量及其分布列(2)教学设计
温故知新 1.离散型随机变量的定义可能取值为有限个或可以一一列举的随机变量,我们称为离散型随机变量.通常用大写英文字母表示随机变量,例如X,Y,Z;用小写英文字母表示随机变量的取值,例如x,y,z.随机变量的特点: 试验之前可以判断其可能出现的所有值，在试验之前不可能确定取何值；可以用数字表示2、随机变量的分类①离散型随机变量:X的取值可一、一列出；②连续型随机变量:X可以取某个区间内的一切值随机变量将随机事件的结果数量化．3、古典概型:①试验中所有可能出现的基本事件只有有限个；②每个基本事件出现的可能性相等。二、探究新知探究1.抛掷一枚骰子,所得的点数X有哪些值？取每个值的概率是多少？ 因为X取值范围是{1，2，3，4，5，6}而且"P(X=m)"=1/6,m=1,2,3,4,5,6.因此X分布列如下表所示
家庭教育和家长学校工作调研报告3篇
一是切实加强对家庭教育工作的领导。市妇联作为家庭教育工作牵头单位，每年召开一次家庭教育工作会议，对全市家庭教育工作进行总结部署;每年召开一次家庭教育讲师团会议，对家庭教育工作存在的问题进行分析梳理;每年开展各类家庭教育道德实践活动，今年，我们开展了一场以智慧应对逆反为主题的家庭教育知识专题讲座、“关注女童安全保护儿童权益创建平安家庭”为主题的儿童安全知识进校园活动等，对家庭教育知识进行宣传和普及。
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小学教师新学期个人工作计划汇编4篇
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关于个人学习家庭教育心得感悟与感受八篇
孩子做了错事，父母不可听之任之，一定要认真处理。必须向孩子严厉指出：什么是应该做的，什么是不能去做的，并要根据孩子错误情节的严重性给予必要的惩罚，让孩子体验到做错事后所引起的不愉快，从而牢记教训。对孩子故意的破坏性错误不能任其发展下去，要认识到孩子的不良习惯不是一天、两天形成的，所以教育也需要一个较长过程，不能性急，帮助孩子逐步明白道理，学会自尊、自律。例如对于孩子某些不良行为，父母可通过施予孩子不愉快的非语言刺激，来减少和控制孩子不良行为的频率，比如：目光注视（以冷峻的目光较长时间的注视孩子）、距离控制（逼近或远离孩子）、轻微的惩罚（拿走孩子喜爱的物品），这样会使孩子对自己的错误行为产生内疚和羞愧，从而减少和消除不良行为发生的次数。
精编小学教师个人成长心得感悟收获八篇
一、教育教学方面本学年年初，我就给自己制定了继续把讲台站好、努力把讲台站活的大体目标，进而从备课、上课、课后反思三个环节着手对自己的教学工作进行改进。由于所教学生学习基础、学习习惯差别较大，这三个环节中我都努力做到因材施教，让成绩处于不同层面的学生都能有所进步。作为语文教师，我始终注重培养学生的写作能力，用文如其人的理念来感染和塑造他们的气质及人格。通过努力，我所教的班级语文成绩在年级名列前茅，辅导学生多次在报刊杂志上发表文章，并在多次作文比赛中获奖。
大学教师师德师风学习心得感悟范文5篇
人们曾用这些词语形容老师：蜡烛、泥土、春蚕、园丁。这些语言既表达了人们对教师的尊敬，也表达了他们对教师的希望。教师是奉献者，教师是耕耘者，桃李满天下的时候，教师是收获者。他们收获的不仅仅是学生的成长，更有社会的进步。所以说，教师的角色是多么的重要。 韩愈说：师者，所以传道、授业、解惑也。教师与学生之间是传导与接受的关系，当学生从家长手里交托到教师手里时，教师的角色发生了转变，但是谁能说不是学生改变了教师呢?学生们永远年轻的思维与灵魂赋予了教师们生生不息的求知态度，学生们活跃丰富的头脑传达给教师灵活知性的教学理念，学生们的态度和表现决定着教师的教学准则与方法。这样，教师与学生的角色互换了，我们是共为一体的关系。我中有你，你中有我。 而社会发展到今天，科学技术飞速进步，社会急剧变革，计算机及信息技术在教学中的的应用，师生之间已经不完全是单纯的传递和接受关系了，学生可以从其他渠道获取知识，有时候甚至在某些方面比教师知道的还多，教师和学生的关系也不那么单一了，教师的角色多元化了。在现代，教师不仅是教学过程的设计者，还是学生学习的引导者和促进者，是教学工作和学生学习生活的组织者和管理者，更是一位教学的反思者和研究者。在这诸多的角色体系中，不管是那一个角色没有演好，都将面临职业生涯的挑战。而这么多的环节之中，最重要的和贯穿始终的就是师德师风的培养和表现。
篮球教练年度个人工作总结范文多篇
一、“准确、快速、灵活”的意义及其关系。 “准确”是篮球运动中的一个突出矛盾，通常在比赛中因传球准确性差造成很多失误，或因投篮不准带来比赛的失败。篮球比赛本身攻守双方一切技术、战术的应用和对抗的焦点就是围绕解决能否干扰对方的一切行动的准确性并争取自己尽量多把球投入对方篮圈，因此，不难看出“准确”的重要。 快速”的目的是为了出其不意，攻其不备，可以造成以多打少；“灵活”是随机应变，克服不利条件，争取有利局势，没有“快”就没有“灵活”，“快”与“灵”为“准确”创造条件，保证“准确”的发挥，“快”与“活”是手段，“准确”是目的，反之，“准确”的动作缩短了时间，争取了速度，“准确”的投篮又逼使对方扩大防区，而对方防区的扩大，更有利发挥“灵活”和“快速”的特长。由此可见，“准确”是三者核心，应占首位。 二、在篮球队训练中的运用 我一直担任校男篮教练工作，通过几年来的实践，我在训练比赛中注意贯彻“准确、快速、灵活”这一指导思想，取得了显著的成绩。我校男篮在参加市级比赛中，多年保持前几名的地位。
人教版高中语文必修1《纪念刘和珍君》说课稿3篇
1.说教材《记念刘和珍君》是鲁迅先生用饱醮着热泪，用悲愤的笔调写下的一篇感人至深的散文，既有对爱国青年沉痛的悼念，又有对反动派愤怒的控诉，也有对觉醒的国民的呐喊。《记念刘和珍君》是高中语文必修1第三单元第一课的讲读课文。文中描摹人物的音容笑貌，叙述人物的行为事迹，都融入了作者真挚的情感和深刻的感悟。对学生明辨是非，领悟时代精神和人生意义，有着重要的作用。新课标强调了要全面提升高中学生的语文素养，初步形成正确的世界观、人生观、价值观，并学会收集、判断、处理信息，具有人文素养、创新精神与实践能力。同时，《记念刘和珍君》感情真挚，感悟深刻，具有典型人文性。结合本单元教学目标，确立教学目标如下。
人教版高中语文必修1《沁园春·长沙》说课稿3篇
4、学习全词：（1）背景介绍，让学生看课文中的年代，然后让学生回忆1925年的毛泽东的情况，老师适当提示，让学生了解其背景。（出示幻灯片）(2)学生自由朗读，结合注释和背景理解诗词。(3)师生共同理解全词①先让学生齐读前三句，思考正确的语序，并用正常的语序解释。②品味第三到第十句，这里是教学的一个重点，要让学生先读，再理解，在此基础上训练学生的想象能力。③分析上阙中的最后三句。④小结上阙。提出了一个问题“谁主沉浮”让学生在文中找内容回答，然后转入下阙内容的分析。⑤分析下阙内容，回答“谁主沉浮”的问题，突出本文主旨5、描绘诗词形象：学生用自己的语言把上阙的内容生动地描绘出来。6、欣赏学生优秀作品。（根据时间具体而定，也可以作为课后作业）
