提供各类精美PPT模板下载
当前位置:首页 > Word文档 >

人教版高中生物必修2DNA的复制说课稿

  • 《端午节的由来》——小学国旗下讲话

    《端午节的由来》——小学国旗下讲话

    《端午节的由来》——博爱小学第二十周国旗下讲话主讲人:魏金水主任各位老师、亲爱的同学们:大家早上好!今天我国旗下的主题是《端午节的由来》。关于端午节起源的传说可多了,其中,纪念屈原的说法流传得最广。屈原是我国古代伟大的爱国诗人,出生在XX多年前战国时期的楚国。他为人正直,学识渊博,很有才干,在楚国担任了重要职务。因为他主张坚决对抗秦国侵略,而受到打击、排斥,还被楚王赶出了朝廷。屈原悲愤极了,在流放途中写下了许多充满爱国精神的诗篇,最有名的是《离骚》。后来,秦国军队攻占了楚国都城。楚国失地千里,尸横遍野。屈原心如刀割,他不愿意看到国破家亡的惨景,就在农历五月五日这一天,怀抱石块,跳进了泪罗江。当时他62岁。百姓们爱戴屈原,当听到他自杀的消息后,纷纷划着船奔向江中,去打捞屈原的遗体,但没能找到。他们怕江中的鱼虾会咬食屈原的遗体,又纷纷把江米装迸竹筒,扔到水里,想用江米喂食鱼虾来保护屈原的遗体。

  • 感恩节国旗下的讲话:感谢有你

    感恩节国旗下的讲话:感谢有你

    鲜花感谢雨露,因为有了雨露的滋润,它才能绽放;雄鹰感谢长空,因为有了长空的辽阔,它才能飞翔;鱼儿感谢大海,因为有了大海的广博,它才能畅游。感恩是一种姿态,是一种发现美并欣赏美的道德情怀。我们应该怀着一颗感恩的心,从平凡的生活中发现美。生命因感恩而美丽。感恩,这二个字,看似简单,在现实生活中,却很少有人能做到,甚至感恩已被人渐渐淡忘。想想我们自己,面对父母长辈无微不至的照顾,你是否想过感恩?面对老师耐心细致的教导,你是否想过感恩?面对朋友真心实意的帮助,你是否想过感恩?或许,被爱与关心环绕着长大的我们,内心对别人的付出与关爱早已麻木,我们总是觉得我们所得到的一切都是理所当然的,不需要理由,更不需要感恩。然而真的不需要感恩吗?看看我们身边的大自然,乌鸦反哺,羔羊跪乳,动物们尚能如此,那我们呢?我们更应该学会感恩。

  • XX年国旗下讲话:做个文明的好孩子

    XX年国旗下讲话:做个文明的好孩子

    尊敬的老师,亲爱的同学:早上好!在和煦的春风里,万里焕发了生命力。我们美丽的校园里也在悄悄地发生着变化。同学们在春天里变得活跃起来,课间爱在操场上奔跑和追逐,是的,生命在于运动。瞧,我们的老师已在操场南面的墙上为你们绘制了体育健儿运动的画面;不知道你们观察过没有,在植树节里,有许多棵树悄悄地在我们的校园里安了家,正迎着阳光雨露想和同学们一起茁壮成长;路旁的花坛里,小草欣欣然张开双眼,一切显得那么美好。可有的同学在玩耍时常爱用脚去踩无辜的小草,用手去摇可怜的小树。“小朋友,我们需要休息。等到夏天,我们会给你们浓浓的绿阴。”同学们,你们听了这样的声音,你还忍心打扰他们吗?

  •  XX年3月国旗下的讲话:三月学雷锋

    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。

  •  关于全国爱眼日的国旗下讲话

    关于全国爱眼日的国旗下讲话

    关于全国爱眼日的国旗下讲话尊敬的老师,亲爱的同学们:大家好!今天,国旗下讲话的主题是《爱自己,从爱护眼睛开始!》。我们都知道眼睛是心灵的窗户,爱自己,就一定要爱护好眼睛。特别是我们小学生处于人生学习的黄金期,天天学习离不开眼睛。据有关资料显示,我国有 五百万盲人,七百万双眼低视力者,单眼低视力者高达四千万人。同学们你们知道吗?一旦患了近视,戴上眼镜会给学习和生活带来很多不便。例如在参加体育活动的时候,打篮球或踢足球时,打破眼镜甚至伤及眼睛到医院做手术缝合是常有的事。形形色色的眼病不仅严重危害了人们的身心健康,也阻碍了人们生活质量的提高。一个正常人如果离开了眼睛简直无法想象怎样生活?看看我们周围,真正明亮的眼睛又有多少呢?

  •  国旗下讲话:做个文明的好孩子

    国旗下讲话:做个文明的好孩子

    寄语:以下是为大家准备的关于演讲稿的文章,希望可以帮助大家。尊敬的老师,亲爱的同学:早上好!在和煦的春风里,万里焕发了生命力。我们美丽的校园里也在悄悄地发生着变化。同学们在春天里变得活跃起来,课间爱在操场上奔跑和追逐,是的,生命在于运动。瞧,我们的老师已在操场南面的墙上为你们绘制了体育健儿运动的画面;不知道你们观察过没有,在植树节里,有许多棵树悄悄地在我们的校园里安了家,正迎着阳光雨露想和同学们一起茁壮成长;路旁的花坛里,小草欣欣然张开双眼,一切显得那么美好。可有的同学在玩耍时常爱用脚去踩无辜的小草,用手去摇可怜的小树。“小朋友,我们需要休息。等到夏天,我们会给你们浓浓的绿阴。”同学们,你们听了这样的声音,你还忍心打扰他们吗?

  •  国旗下讲话:安全,永恒的主题

    国旗下讲话:安全,永恒的主题

    为大家收集整理了《 国旗下讲话:安全,永恒的主题》供大家参考,希望对大家有所帮助!!!各位老师、同学们:大家早上好!今天我国旗下讲话的题目是《安全,永恒的主题》。对于每个人来说,生命都只有一次。注意安全,就是善待和珍惜生命的一种有效途径,专家认为,通过教育和预防,80%的中小学生意外伤害事故是可以避免的。在这里,我向全校同学提出如下建议:一、遵守交通规则和交通秩序。来校、回家做到文明行路,出校门也不要边讲话、打闹,边骑车,要注意过往车辆状况;不闯红灯,过马路要机警,不走机动车道,不逆行;不骑自行车带人。

  • 在全市两违工作会议上的讲话

    在全市两违工作会议上的讲话

    同志们:这次全市清理违建工作会议,是在特殊形势下召开的一次下决心、动真格、打硬仗的专题会议。今年以来,市委多次召开会议,研究部署违建清理工作,并先后组织开展了几次大规模的专项行动,有力刹住了非法占地抢建之风,遏制了“两违”的蔓延势头。在看到成效的同时,我们更要清醒地认识到,现在违建的歪风开始重新抬头,从中心市区到城乡结合部,再到周边乡村,都不同程度地存在。这不仅严重阻碍了项目落地,阻碍了城市发展,影响了社会和谐稳定,从根本上说也损害了大多数人民群众的利益。之所以出现这些现象,我认为主要有以下几个原因:一是住房需求。在房价走高的情况下,一些人心存侥幸、铤而走险,违法违规建设住房。二是利益驱使。一些人“以房生财”,或用来出租经营,私自违建、高价出售;或为牟取超额拆迁补偿费用,顶风作案。三是执法不严。部门齐抓共管格局的合力没有形成,网格化管理责任没有落实到位,“清违”工作时紧时松,致使违建者对“清违”行动持怀疑态度,等待时机“东山再起”。还有,在同一片区的违建房,有的拆了,有的没拆,导致群众认为执法就是欺负老实人,“找人、说情、送礼”就可幸免于难。

  • 在2023年招商引资推进大会上的讲话

    在2023年招商引资推进大会上的讲话

    同志们:今天我们召开招商引资推进大会,主要是深入学习贯彻上级有关会议精神,进一步解放思想、凝聚力量,抢抓黄金招商季,迅速掀起新一轮大招商、大开放热潮,以招商引资工作的新突破推动经济高质量发展,为奋力建设社会主义现代化新**贡献新的力量。刚才,**同志对当前招商引资工作作了具体部署,大家要认真抓好贯彻落实。*个单位作了很好的表态发言,希望大家互相学习借鉴。下面,就做好今后工作,讲三点意见。一、提高政治站位,把准发展大势,切实增强大抓招作的责任感、使命感、紧迫感招商引资是经济工作的重要抓手,招商引资工作抓得紧、抓得实的地方,经济发展都呈现出了持久的动力和广阔的前景。各级各部门要从战略和的全局高度深刻认识这项工作的重要性和紧迫性,切实把招商引资摆在更加突出的位置,站位再提高、压力再传导、工作再加强,迅速推动形成大抓招商的生动局面。第一,奋力追赶进位,必须以招商引资求突破。当前,我们仍然是欠发达地区,经济总量处于全国中游,与前面的标兵差距不小,后面的追兵又追得很紧,必须从扩大优质增量和提升优化存量入手,努力在追赶超越中实现高质量发展。招商引资工作既是培育新增长点、扩大优质增量的“一号引擎”,也是促进资源要素重组、提升优化存量的“关键因子”,更是推动经济高质量发展的“源头活水”。

  • 2024开展调研活动的工作总结

    2024开展调研活动的工作总结

    各级委(组)要高度重视调查研究工作,按照shiwei要求和总体部署,科学落实好本部门调查研究工作计划,从方案计划、过程实施、监督问效等各个环节入手,强化对调查研究工作的组织领导,形成委(组)主要负责同志负总责,班子其他成员各负其责,领导干部带头示范,广大员积极参与的生动局面。二要坚持科学统筹。调查研究是一项经常性的工作,也是一项长期任务。要加强统筹安排,避免扎堆调研、多头调研、重复调研,不增加基层负担。要深入践行实事求是的工作作风,“实”而更“实”、查“实”求“是”;要统筹好当前工作和长期工作的关系,学会“弹钢琴”,真正“走前列”,确保调查研究工作能“沉到底”、“沉够底”,掌握“解剖麻雀”、“管中窥豹”、“不唯上、不唯书、只唯实,交换、比较、反复”工作方法。

  • 2024年上半年工作总结会议上的讲话

    2024年上半年工作总结会议上的讲话

    分管领导要紧紧围绕“三保”(保安全、保质量、保进度)目标任务,靠前指挥、倒排工期、挂图作战,从项目建设的具体问题入手,以钉钉子的精神抓重点、抓关键、抓核心,加大施工现场巡查频次,及时协调处理和跟进服务,确保按期完成×××××××、×××××××等民生项目。紧盯×××××××,加快工程进度,完工的尽快组织验收结算。主动对接、加强服务,确保×××××××按期完成年度建设任务,尽快交付使用。二是科学谋划城乡建设重点工程,准确把握国家、省、市关于项目建设的具体要求,吃透政策、把握导向、聚焦需求,围绕×××××××基础设施布局方向,提前启动明年×××××××、×××××××等重点项目的摸底调查和前期手续办理工作,确保×××××××项目落地实施。四、聚焦主业、守牢底线,全面完成各项既定目标。

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

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

    你校英语报计划出版一期急救常识专刊,现面向全校学生公开征集稿件,你有意参加。请你根据下面提示内容,用英语写一篇短文,介绍在车祸现场对伤者进行急救的方法和步骤。1.确保现场的安全;2.询问伤者,确保其呼吸正常;3.检查伤口,如流血则应采取止血措施;4.如需急救,确保其处于康复位置。注意:1.词数80左右;2.可以适当增加细节,以使行文连贯。参考词汇:康复位置 recovery positionAs we all know, having a knowledge of first aid can make a great difference in our daily life. If a traffic accident happens and someone is injured, the following steps can be used to treat the injured.In the first place, we should make sure that the accident scene is safe so that we won’t get hurt. We should ask the injured person if he is OK, and see if he is breathing. What’s more, we should check for cuts and wounds. If he is bleeding badly, it is vital that we should try to stop the bleeding by applying pressure to the injury. This is because if a person loses too much blood, he may die. If necessary, take the injured person to the hospital as soon as possible.Do remember: when giving first aid, please be sure to place the person in a recovery position.

  • 新人教版高中英语选修2Unit 4 Learning about Language教学设计

    新人教版高中英语选修2Unit 4 Learning about Language教学设计

    This section guides students to pay attention to the typical context of vocabulary use, helps students accumulate vocabulary around the key vocabulary of this unit, and uses the learned words and word chunks in different contexts to deeply understand their meaning and usage, so as to achieve the purpose of review and consolidation.The teaching design activities aim to guide students to pay attention to the typical context in which the target vocabulary is used, as well as the common vocabulary used in collocation, so that students can complete the sentence with correct words. In terms of vocabulary learning strategies, this unit focuses on cultivating students' ability to pay attention to collocation of words and to use word blocks to express meaning.For vocabulary learning, it is not enough just to know the meaning of a single word, but the most important thing is to master the common collocations of words, namely word blocks.Teachers should timely guide students to summarize common vocabulary collocation, such as verb and noun collocation, verb and preposition collocation, preposition and noun collocation, and so on.1. Guide students to understand and consolidate the meaning and usage of the vocabulary in the context, 2. Guide the students to use the unit topic vocabulary in a richer context3. Let the students sort out and accumulate the accumulated vocabulary, establishes the semantic connection between the vocabulary,4. Enable students to understand and master the vocabulary more effectivelyGuiding the Ss to use unit topic words and the sentence patterns in a richer context.

  • 新人教版高中英语选修2Unit 4 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 4 Using langauge-Listening教学设计

    The theme of the listening section is " talking about scenery and culture along a journey."The part is designed to further lead the students to understand Canadian natural geography and social environment, and integrated into the cultural contrast by mentioning the long train journey from Beijing to Moscow routes. On this basis, the part activates students related travel experience, lets the student serial dialogue, guides the student to explore further the pleasure and meaning of the long journey, and Chinese and foreign cultural comparison.The part also provides a framework for the continuation of the dialogue, which is designed to provide a framework for students to successfully complete their oral expressions, and to incorporate an important trading strategy to end the dialogue naturally.1. Help students to understand and master some common English idioms in the context, and experience the expression effect of English idioms.2. Guide the students to understand the identity of different people in the listening context, and finish the dialogue according to their own experience.3. Instruct the students to use appropriate language to express surprise and curiosity about space and place in the dialogue, and master the oral strategy of ending the dialogue naturally.1. 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.

  • 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.

  • 新人教版高中英语选修3Unit 2 Healthy Lifestyle教案

    新人教版高中英语选修3Unit 2 Healthy Lifestyle教案

    Activity 4: Figuring out the structure and the writing purpose 本活动为实现课时目标2。 1.Read Paragraph 6 and think about its main idea and the writer’s writing purpose. Q1: If you were the author, how would you end your article? “For young people, there is plenty of time to change bad habits. However, there is no “magic pill” or delete button that will help you; you have to think about your bad habits and decide on some changes. You have the power to build a happy and healthy life full of good habits!” Q2: What is Paragraph 6 mainly about? (Possible answer: to appeal to young people including teenagers to change bad habits and live a happy and healthy life.) 2.Think about the writer’s writing purpose and share opinions. Q1: What is the writing purpose? Work in pairs and figure it out. (Possible answer: On the one hand, the passage is written to help teenagers change their bad habits and live a healthy lifestyle. On the other hand, it provides us with a scientific way to identify and analyse our problems objectively, thus strengthening our resolve to tackle the seemingly common yet tough problems in our lives.) 【设计意图】 步骤1旨在预测和验证文章最后一段主要内容,梳理完整的语篇结构,步骤2旨在思考和讨论作者的写作目的。教师也可根据学生课堂反应情况融入对语篇人称多次转换的思考。

  • 新人教版高中英语选修4Unit 2 Iconic Attractions教案

    新人教版高中英语选修4Unit 2 Iconic Attractions教案

    帮助学生通过讨论与对主题的提升,反思自己的旅游方式,以便做出更优化的安排,在今后的旅程中有更多的收益。 Activity 2: Further discussion of the 6 elements above and supplement of more background knowledge 本活动为实现课时教学目标2。 1.Target Q: The writer’s clear target of traveling, meeting the people and experiencing the culture, is closely related to his major in social studies. Then what is social studies? Social studies is a part of a school or college curriculum concerned with the study of social relationships and the functioning of society and usually made up of courses in history, government, economics, civics, sociology, geography, and anthropology. (Dictionary by Merriam-Webster) Reflection: When you go out to travel, what targets do you usually have in mind? 2.Research Q: Suppose you are traveling to Hangzhou during the school holidays, how will you do research on the city? (surf the internet, read books or travel brochures, consult friends, ...) What information will you be interested to know? (location, iconic sites, local cuisines, interesting customs, shopping malls ...) 3.Abandonment To make the most of time, we have to learn to abandon so that we can accomplish our plan. What will you be interested in doing if you go to Hangzhou if you have a week’s time? What if you only have 2 days? 4~5. Venturing & Experiencing Q: What did he venture to do during the trip? What new experiences did he have? In Sydney: attend his first open-air barbecue, enjoy many different but yummy meals In Catherine: observe the life and customs of the aborigines appreciate their music & try the musical instruments: the didgeridoo

  • 人教版高中地理选修2百万移民及其安置教案

    人教版高中地理选修2百万移民及其安置教案

    三峡库区农村移民安置根本出路是通过发展大农业来解决耕地不足,不应盲目开垦荒坡地,防止产生新的水土流失,尽量避免生态环境恶化。2、就地后靠,就近安置模式三峡库区淹没区线状分布的受淹特点有别于一般水库淹没区的片状分布,使得库区移民具有相对分散的特点,且淹没涉及的356个乡镇没有一个被全淹,甚至全淹的村也很少,这有利于移民在本县甚至本乡就近后靠安置,避免了水库移民大量外迁、远迁所造成的种种困难和后遗症。三峡移民搬迁大多可以就地后靠,就近安置,这是三峡移民的一大特色。就近后靠安置的优点是不离本乡本土,移民容易接受,且避免了移民大量外迁、远迁所造成的困难和后遗症;缺点是容易对当地的生态环境造成过大的压力,如过度开垦坡地、破坏植被、加剧水土流失等。3、工程周期长,可从容安置移民三峡工程建设周期长(1994年~2009年,共17年),使得移民安置能够及早进行,可以从容安置移民的生产和生活。

  • 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 Learning about Language教学设计

    新人教版高中英语选修2Unit 3 Learning about Language教学设计

    1. We'll need ten months at least to have the restaurant decorated.2.Some traditional Chinese dishes from before the Ming Dynasty are still popular today.3.My grandpa's breakfast mainly includes whole grain biscuits and a glass of milk.4.People in this area would eat nearly a kilo of cheese per week.5. We enjoyed a special dinner in a fancy restaurant where the waiters all wore attractive suits.6. He prefers this brand of coffee which, as he said, has an unusually good flavor.Key:1. at a minimum 2. prior to3. consist of4. consume5. elegant6. exceptionalStep 5:Familiarize yourself with some food idioms by matching the meaning on the right with the colored words on the left.1.Public concern for the health of farm animals has mushroomed in the UK2.Anderson may be young but he's certainly rolling to doing dough!3.George is a popular lecturer. He often peppers his speech with jokes.4.As the person to bring home the bacon, he needs to find a stable job.5 He is often regarded as a ham actor for his over emphasized facial expressions. The media reported that these companies had treated pollution as a hot potato. 6.The media reported that these companies had treated pollution as a hot potato.7.Don't worry about the test tomorrow. It's going to be a piece of cake!8. It's best to fold the swimming ring when it is as flat as a pancake.A. completely flatB. something that is very easy to do C.an issue that is hard to deal withD.to include large numbers of somethingE.to earn on e's living to support a familyF. wealthyG.to rapidly increase in numberH. an actor who performs badly, especially by over emphasizing emotions

上一页123...306307308309310311312313314315316317下一页
提供各类高质量Word文档下载,PPT模板下载,PPT背景图片下载,免费ppt模板下载,ppt特效动画,PPT模板免费下载,专注素材下载!

PPT全称是PowerPoint,LFPPT为你提供免费PPT模板下载资源。让你10秒轻松搞定幻灯片制作,打造⾼颜值的丰富演示文稿素材模版合集。