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初中数学浙教版七年级下册《第二章 二元一次方程组 三元一次方程组及其解法》教材教案

  • 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 2 Bridging Cultures-Discovering useful structures教学设计

    The grammar of this unit is designed to review noun clauses. Sentences that use nouns in a sentence are called noun clauses. Nominal clauses can act as subject, object, predicate, appositive and other components in compound sentences. According to the above-mentioned different grammatical functions, nominal clauses are divided into subject clause, object clause, predicate clause and appositive clause. In this unit, we will review the three kinds of nominal clauses. Appositive clauses are not required to be mastered in the optional compulsory stage, so they are not involved.1. Guide the students to judge the compound sentences and determine the composition of the clauses in the sentence.2. Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.3. Inspire the students to systematize the function and usage of noun clause1.Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.2.Inspire the students to systematize the function and usage of noun clauseStep1: The teacher ask studetns to find out more nominal clauses from the reading passage and udnerline the nominal clauses.

  • 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。

  • 新人教版高中英语必修3Unit 2 Morals and Virtues-Discovering Useful Structure教学设计

    1. 表示时间。Hearing these stories, I’m skeptical about the place. = When I heard these stories. . . 2. 表示原因。Not knowing his address, I can’t send this book to him. = Because/Since/As I don’t know his address. . . 3. 表示结果。His father died, leaving him a lot of money. =. . . and left him a lot of money4. 表示条件。Going straight down the road, you will find the department store. = If you go straight down the road. . . 5. 表示让步。Being tired, they went on working. =Although they were tired. . . 6. 表示行为方式、伴随情况或补充说明。He lay on the grass, staring at the sky for a long time. =. . . and stared at the sky for a long time注意:非谓语动词作状语时, 如所提供的动词不能和句子中的主语保持一致, 动词-ing形式必须有自己的逻辑主语, 通常由名词或代词来担任, 这就是独立主格结构。The last bus having gone, we had to walk home. (having gone的逻辑主语是the last bus, 而不是we)Weather permitting, the football match will be played on Friday. (permitting的逻辑主语是time, 而不是the football match)Step 7 Practice1. ________(study) hard, you are sure to get first prize. 2. People use plastic in their daily life, _______(leave) large amounts of waste. 3. ________(work) hard at your lessons, you are to succeed. 4. The old man, ____________(work) abroad for twenty years, is on the way back to his motherland. 5. ______________(finish) his homework, he was playing on the playground. Answers: 1. Studying 2. leaving 3. Working 4.having worked 5. Having finishedStep 8 HomeworkFinish the homework on Page 22.

  • 新人教版高中英语必修3Unit 3 Diverse Cultures-Discovering Useful Structure教学设计

    Step 4 PracticeRead the conversation. Find out which words have been left out.Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Any recommendations for places to visit?Linlin: Wow, cool! Guizhou is a province with a lot of cultural diversity. Places to visit...well, definitely the Huangguoshu Waterfall first.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have. Why ?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King.Justin: Really? Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages. You’ll find Chinese culture is much more diverse than you thought.Justin:Sounds great, thanks.Answers:Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Do you have any recommendations for places to visit?Linlin: Wow, that’s cool! Guizhou is a province with a lot of cultural diversity. What are some places to visit in Guizhou ? Well, definitely the Huangguoshu Waterfall is the first place to visit in Guizhou Province.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have heard of the Chinese novel Journey to the West . Why do you ask if I have heard of the Chinese novel Journey to the West?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King from Journey to the West.Justin: That’s really true? It’s Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages on your trip to Guizhou Province. You’ll find Chinese culture is much more diverse than you thought it was.Justin:This all sounds great, thanks.

  • 新人教版高中英语必修3Unit 3 Diverse Cultures-Reading and Thinking教学设计

    Discuss these questions in groups.Q1: Have you ever been to a place that has a diverse culture ? What do you think about the culture diversity ?One culturally diverse place that I have been to is Harbin, the capital city of Heilongjiang Province. I went there last year with my family to see the Ice and Snow Festival, and I was amazed at how the culture as different to most other Chinese cities. There is a big Russian influence there, with beautiful Russian architecture and lots of interesting restaurants. I learnt that Harbin is called “the Oriental Moscow” and that many Russians settled there to help build the railway over 100 years ago.Q2: What are the benefits and challenges of cultural diversity ?The benefits: People are able to experience a wide variety of cultures, making their lives more interesting, and it can deepen the feelings for our national culture, it is also helpful for us to learn about other outstanding culture, which helps improve the ability to respect others. The challenges: People may have trouble communicating or understanding each other, and it may lead to disappearance of some civilizations and even make some people think “The western moon is rounder than his own.”Step 7 Post reading---RetellComplete the passage according to the text.Today, I arrived back in San Francisco, and it feels good (1) _____(be) back in the city again. The city succeeded in (2)_________ (rebuild) itself after the earthquake that (3)________ (occur) in 1906, and I stayed in the Mission District, enjoying some delicious noodles mixed with cultures. In the afternoon, I headed to a local museum (4)____ showed the historical changes in California. During the gold rush, many Chinese arrived, and some opened up shops and restaurants in Chinatown to earn a (5)_____ (live). Many others worked on (6)______ (farm), joined the gold rush, or went to build the railway that connected California to the east. The museum showed us (7)____ America was built by immigrants from (8)________ (difference) countries and cultures. In the evening, I went to Chinatown, and ate in a Cantonese restaurant that served food on (9)________(beauty) china plates. Tomorrow evening, I’m going to (10)__ jazz bar in the Richmond District. 答案:1. to be 2. rebuilding 3. occurred 4. that 5.living6. farms 7.how 8. different 9. beautiful 10. a

  • 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!

  • 人教版高中生物必修2减数分裂和受精作用说课稿

    一 减数分裂高一生物减数分裂说课稿各位评委、老师:大家好,我今天说课的题目是高中生物必修2第二章第一节〈〈减数分裂与受精作用〉〉第一部分减数分裂第一课时精子形成过程。接下来我就从以下几个方面来说说这一节课。一、说教材1.教材地位和作用《减数分裂》这一部分内容不仅是第二章的重点内容,也是整本书的重点内容之一。它以必修一学过的细胞学知识、染色体知识、有丝分裂知识和初中生殖种类知识为基础。通过学习,使学生全面认识细胞分裂的种类、实质和意义,为后面学习遗传和变异,生物的进化奠定细胞学基础。2.教学目标(1)知识目标:掌握减数分裂的概念和精子的形成过程;理解减数分裂和受精作用的意义。(2)能力目标:通过观察减数分裂过程中染色体的行为变化,培养学生识图、绘图能力以及比较分析和归纳总结的能力。

  • XX年3月国旗下的讲话:三月学雷锋

    为大家收集整理了《XX年3月国旗下的讲话:三月学雷锋》供大家参考,希望对大家有所帮助!!!各位老师,各位同学:大家好!阳春三月,是我们学校的学雷锋月,也是我们学习雷锋的开始月。今天,我国旗下演讲的题目是“帮助别人,快乐自己”。当你在大街道上跌倒,有人在一旁嘲笑你,却没有扶你的时候; 当你的钱包被小偷偷走,旁人看见却不敢吱声的时候; 当你一个人需要人帮助,却没有人愿意帮助你的时候。各位同学,你,会是什么心情呢?想必会酸、苦、涩。可就在这时候,有一个人伸出了自己的手,去扶你,去帮助你,你是喝令他走,并说这种精神过时了,还是心存感激地接受帮助呢?答案是很明显的。雷锋精神依旧在我们身边灼灼发亮,雷锋精神的实质就是全心全意为人民服务,我们作为一名福高人,应该尽自己绵薄之力帮助别人,展现福高学子的奉献精神。帮助别人,快乐自己。

  • 大班科学教案:科学宫

    二、活动准备: 有趣的人体:人体模型,制作"关节" 好玩的不倒娃:一次性杯子,剪刀,双面胶,蜡笔等。 人体器官真有用:人体器官拼图,记录纸,水彩笔。 看不见的细菌:叶瓣,泥土,发霉的蛋糕等,记录纸。 三、活动过程:1、谈话导入:人的身体象一台机器,身体上的器官就象机器上的零件,人体器官有什么用,怎样保护人体器官呢?今天,我们就去找找答案。2、参观介绍材料:你想去发现什么秘密呢?

  • 乡2023年政法信访工作总结及2024年工作谋划

    2024年,乡将以创造安全稳定的政治社会环境为主线,紧紧围绕着平安建设、法治建设,在综治维稳、社会治理、服务群众上下功夫,推动政法工作高质量发展,高水平跃进。一是积极化解各类矛盾,全力维护社会稳定。正确处理人民内部矛盾。建立矛盾纠纷排查调处机制,认真做好矛盾分类梳理和调处工作,及时准确地掌握可能引发不稳定案件的苗头,做到早发现、早报告、早疏导、早化解,力求把问题解决在基层,消化在内部,化解在萌芽状态。对涉法涉诉上访案件不回避、不推拖,对不合理诉求,做好耐心细致的解释说服工作,对合理诉求,给予及时处理。二是着力做好社会治理现代化。一要高规格推进市域社会治理现代化。要进一步做细网格服务管理,推动创建服务站,建立信息收集、下沉走访、信息融合、跟踪督办、考评激励机制等落实落地。

  • xx区企业服务中心2023年度上半年工作总结及下半年工作思路

    (一)招商引资工作情况1.统筹制定全年任务,优化理顺工作机制。一是组织架构赋能,激发招商引资新活力。承接专班招商引资专项小组、综合协调专项小组工作,统筹推动各项市级专项招商工作。对接区委组织部开展xx区青年干部招商先锋队筹建及业务招商指导、业务培训、日常管理、成果考核等工作。二是考核指标固能,保障考核目标使命达。形成“企聚xx”2023年招商引资工作方案,梳理形成《xx区2023年企聚xx招商引资重点任务清单》,形成《“招商引资”考核指标评分标准(2023年)》《xx区青年干部招商先锋队招商任务考核标准》,保障目标任务落实到位。三是工作制度强能,实现工作推进高效行。建立周例会、周报、月总结汇报三个协调机制。制定标准化招商推介材料,组织招商引资专题业务培训。2.加快签约项目落地,助推实现“数税双收”。累计引进优质企业xx家,预计可实现年营收xx.x亿元、年纳税约x.xx亿元、投资总额xx.xx亿元。其中,预计年纳税xxxx万以上企业x家。xx家已落地企业中,市外投资企业共x家。深南东总部产业空间招商先锋队已引进项目x个,正在进行注册x个项目。3.推进储备重点项目。2023年1月至6月,储备重点在谈项目xx个。xxx强/央企/国企/外商投资项目x个、上市公司投资项目x个、准独角兽项目x个、国高企业项目x个。深南东总部产业空间招商先锋队已对接企业xx家,重点跟进项目xx个。4.拓宽招商引资渠道,集聚优质项目资源。召开招商引资推介会,会同市商务局举办“2023伦敦科技周—中英科技企业交流活动”。加大力度对接第三方资源,注重产业研究,发力国际资源,开展楼宇招商,广建渠道网络。

  • xx镇便民服务中2024年上半年工作总结及下半年工作打算

    (五)夯基固本、重行重效、兜牢民生底线。一是开展xx次低保申请评议,新增农村低保xx户xx人、低保边缘户xx户xx人,发放低保金xx万元。二是困难救助xx人次,发放救助金、特困供养金共xx余万元。三是重残护理补贴xx人、xx万元。四是孤儿和事实无人抚养儿童x人、xx万。高龄补贴xx人、xx万元,群众幸福指数不断攀升。三、存在问题及下一步打算半年来,xx镇便民服务中心牢记为民服务宗旨意识,扎实开展各项惠民利民便民措施举措,取得较好成效,但依然存在部分问题,主要表现在:因历史条件限制,办公地停车位较少,每逢赶集日办事群众较多,群众停车不方便,便民服务设施等硬件建设还需加强;宣传力度不够,部分事项在村一级便可办理,但仍然有部分群众到xx镇便民服务中心来办理,对村管理和指导不够,镇便民服务中心业务人员业务能力和主动服务意识还需进一步加强。

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