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人教版高中生物必修3第五章第五节《生态系统的稳定性》说课稿

  • 2024年上半年工作总结和2024年下半年工作计划的报告

    2024年上半年工作总结和2024年下半年工作计划的报告

    (二)完善基础设施,建设优美宜居村镇。积极争取资金投入,尽快建设实施连心桥及周边附属设施;力争在年底前完成XX镇综合服务运输站建设。继续保持专班不散,积极配合镇广高速的后续建设,全力做好纠纷协调、矛盾化解,确保镇广高速建设平安有序。持续抓好农村公路升级改造,多方筹措资金,尽快完成因汛期降雨、滑坡、沉降损毁的37处700米道路修复。灵活利用91个公益性岗位,进一步加大村级公路及重点路段的道路养护工作力度,推进镇村道路绿化、美化、亮化工作。(三)加强生态治理,践行绿色生态理念。牢固树立和践行“绿水青山就是金山银山”的理念,强化镇、村环境卫生检查督办和考核力度。强力推进大气污染防治,强化建筑扬尘和渣土运输管控,抓好秸秆禁烧、水环境治理等工作,持续改善和提升空气质量。认真落实耕地保护和环境保护制度。落实控绿、造绿、植绿、护绿行动,统筹推进乡村绿化美化、退耕还林等工程建设,实现全镇宜林地、通道绿化地、村庄绿化地等应绿尽绿,积极申报巴中市级生态文明村,力争创成生态乡镇。

  • 大学生弘扬五四精神学习个人心得体会例文

    大学生弘扬五四精神学习个人心得体会例文

    新时代青年应该立鸿鹄之志,展骐骥之跃,青年当系好人生第一粒扣。红日初升,其道大光;河出伏流,一泻汪洋。青春只有一次,谁也不应做青春的看客。中共一大召开时的13名代表平均只有28岁,而这支年轻的队伍却在风雨中迅速成长为中国人民和中华民族的主心骨。黎巴嫩的诗人纪伯伦说过,不要因为走的太远,而忘记了当初为什么出发。青年人更要扣“正”人生的第一粒扣,筑牢信仰之基,补足精神之钙,把稳思想之舵,走好人生的“每一步”。

  • 小学表彰大会学生发言讲话稿五篇

    小学表彰大会学生发言讲话稿五篇

    比如这个学期我要取得什么样的成绩,要完成哪些事情,这就是一个长期的目标,而这周乃至今天我该完成什么,这就是一个小目标。我们只有实现了一个个小目标后,才能实现大目标。很多同学有明确的目标,但学习不踏实,不严谨,不愿意学硬学,不花时间少学,不动脑筋浅学,考前搞搞突击;有的上课不听或干其它事,认为课后自己多花点时间也照样能学好,这些做法其实是不对的。

  • 人教版高中数学选修3分类加法计数原理与分步乘法计数原理(1)教学设计

    人教版高中数学选修3分类加法计数原理与分步乘法计数原理(1)教学设计

    问题1. 用一个大写的英文字母或一个阿拉伯数字给教室里的一个座位编号,总共能编出多少种不同的号码?因为英文字母共有26个,阿拉伯数字共有10个,所以总共可以编出26+10=36种不同的号码.问题2.你能说说这个问题的特征吗?上述计数过程的基本环节是:(1)确定分类标准,根据问题条件分为字母号码和数字号码两类;(2)分别计算各类号码的个数;(3)各类号码的个数相加,得出所有号码的个数.你能举出一些生活中类似的例子吗?一般地,有如下分类加法计数原理:完成一件事,有两类办法. 在第1类办法中有m种不同的方法,在第2类方法中有n种不同的方法,则完成这件事共有:N= m+n种不同的方法.二、典例解析例1.在填写高考志愿时,一名高中毕业生了解到,A,B两所大学各有一些自己感兴趣的强项专业,如表,

  • 人教版高中数学选修3分类加法计数原理与分步乘法计数原理(2)教学设计

    人教版高中数学选修3分类加法计数原理与分步乘法计数原理(2)教学设计

    当A,C颜色相同时,先染P有4种方法,再染A,C有3种方法,然后染B有2种方法,最后染D也有2种方法.根据分步乘法计数原理知,共有4×3×2×2=48(种)方法;当A,C颜色不相同时,先染P有4种方法,再染A有3种方法,然后染C有2种方法,最后染B,D都有1种方法.根据分步乘法计数原理知,共有4×3×2×1×1=24(种)方法.综上,共有48+24=72(种)方法.故选B.答案:B5.某艺术小组有9人,每人至少会钢琴和小号中的一种乐器,其中7人会钢琴,3人会小号,从中选出会钢琴与会小号的各1人,有多少种不同的选法?解:由题意可知,在艺术小组9人中,有且仅有1人既会钢琴又会小号(把该人记为甲),只会钢琴的有6人,只会小号的有2人.把从中选出会钢琴与会小号各1人的方法分为两类.第1类,甲入选,另1人只需从其他8人中任选1人,故这类选法共8种;第2类,甲不入选,则会钢琴的只能从6个只会钢琴的人中选出,有6种不同的选法,会小号的也只能从只会小号的2人中选出,有2种不同的选法,所以这类选法共有6×2=12(种).因此共有8+12=20(种)不同的选法.

  • 巴中30年生态文明建设综述

    巴中30年生态文明建设综述

    成立两山生态资源资产经营有限公司,以四川巴中——浙江金华对口合作为纽带,抢抓浙江省第十七届运动会在金华召开为契机,通过浙江省运会购买巴中市境内2万吨碳减排量,抵消省运会期间所产生的二氧化碳排放量,助力浙江省运会碳中和,加快生态产品价值实现。在此基础上,2022年1月,市委全会通过《关于抢抓碳达峰碳中和重大机遇加快推动绿色崛起的决定》,鲜明提出以培育振兴“1+3”主导产业为重点,大力发展绿色低碳优势产业,加快将生态优势转化为发展优势的发展目标,并明确发展壮大绿色低碳优势产业、强化能源绿色低碳发展、推动生态产品价值实现、巩固提升绿色生态优势、营造绿色崛起良好环境等为重点任务。保护绿水青山,巴中蹄疾步稳。打造美丽中国老区样板,巴中步履铿锵。新时期,巴中人民不断凝聚保护生态环境的共识,保持推动生态文明建设的韧劲,逐“绿”而行,奏响生态文明建设最强音,竭力让巴中天更蓝、山更绿、水更清、环境更优美。一切为了人民群众满意

  • 保护生态环境国旗下讲话稿7篇

    保护生态环境国旗下讲话稿7篇

    由于生态系统的破坏,地球上的一些动、植物已经灭绝或正临灭绝的危险。例如卡罗莱纳鹦哥鸟,因人类垂涎其肉和羽毛,或当做果园里的害鸟还射杀,1914年灭绝。还有一种植物,叫红树林,红树林生长在陆地与海洋交界带的滩涂浅滩,是陆地向海洋过度的特殊生态系,它也是一种十分稀有的植物,也是因为遭到许多人的砍伐,数量积聚减少。在地球上每天大约有27种生物灭绝,为了保护野生动、植物,许多国家建立了自然保护区,还专门颁布了《野生动物保护法》。在自然保护区内不准狩猎采伐,不能破坏自然生态环境。我们人类是宇宙的主宰,地球上的“疾病”将由我们每一个人来治。

  • 推进农村生态文明建设调研报告 3篇

    推进农村生态文明建设调研报告 3篇

    (一)是全面建成国家级生态市的必要条件。  根据《XX生态市建设规划》要求,XX将于XXXX年前建成国家级生态市,而XX%的乡镇达到全国环境优美乡镇验收要求是生态县(市、区)建设的前置条件。要真正达成生态市建设目标,基层创建工作是关键,开展乡镇生态建设创建工作能够丰富生态市建设内涵,提升生态市建设水平,是进一步推进和深化生态市建设工作的客观需要和必然基础。  (二)是推进农村环境基础设施建设的大好契机。  国务院关于推进社会主义新农村建设的若干意见中明确提出,要把国家对基础设施建设投入的重点转向农村,而加强环境基础设施建设是乡镇生态建设的重要内容,环境基础设施是人们赖以生存和发展的重要基础条件,对一个区域的经济社会发展起着基础性和决定性的作用,要全面实现社会主义新农村建设,必然要求乡镇调整发展思路,加大环境基础设施建设力度,确保辖区内居民拥有良好的环境条件和发展空间。

  • 新人教版高中英语选修1Unit 2 Looking into the Future教案

    新人教版高中英语选修1Unit 2 Looking into the Future教案

    【设计意图】以“新科技是一把双刃剑”为主题开展讨论活动。这个话题比较大,所以给了一定的限制,首先需要以智能家居为例来阐述科技发展对未来生活产生的影响,然后列举其优点和缺点,最后就以上现象发表自己的观点。这个活动是对整个文本的创意性总结与意义的升华,留给学生一定的想象空间,学生借此机会可以运用文本内容和语言表达自己对科技发展的看法和态度。Assignments:1. Finish Exercise 4 on Page 15 of the textbook.A smart home is one that integrated computers into the structure of the building itself. In this way, many of the things that we now do ourselves become automatic. For example, the smart home could control the air conditioning and lights so that you would no longer have to turn switches on and off, and so that your home would be more energy-efficient. The smart home could also monitor itself to make sure that everything is working as it should, and send you warnings if there is a problem. Such smart homes could even be programmed to detect your health problems, and then give you reasonable advice as to the food you should eat or if you should see a doctor. So, in a sense, smart homes will lead us to living smarter lives.2.Create a smart function for your home, and share your creation in the next period.

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

    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 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 2 Reading for writing教学设计

    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

    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.

  • 新人教版高中英语选修4Unit 1 Science Fiction教案

    新人教版高中英语选修4Unit 1 Science Fiction教案

    本活动旨在落实课时教学目标2。 1.Think, discuss and share. Students form groups of 4, discuss about the given ending make comments. Q1: Do you like the ending? Q2: Was it a logical ending? Why so or why not? [设计意图]通过引导学生思考、讨论、评价,比较个人、同伴所预测的结局和听力文本所给定的结局的异同点,深化对文本的认知,发展学生的评判性思维能力。 Activity 4: Exploring Asimov’s three laws of robotics and the purpose of the writing 本活动旨在落实课时教学目标3。 1. Get to know Isaac Asimov’s three laws of robotics. The teacher shares Isaac Asimov’s three laws of robotics. The three laws state that: ①A robot may not injure a human being or, through inaction, allow a human being to come to harm. ②A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law. ③A robot must protect its own existence as long as such protection does not conflict with the First or Second Law. Q: How does Tony’s story relate to the laws? 2. Figure out Isaac Asimov’s purpose of writing Satisfaction Guaranteed. The students express their opinions about the author’s writing purpose. Q: Why did Isaac Asimov write such a story? S: To explore the relationship between robots and humans. [设计意图]通过了解艾萨克·阿西莫夫所制定的机器人三大定律,加深学生对文本的理解,深入探究文本的主题意义。推理作者的写作目的,联系生活实际,思考人类与机器人的关系。

  • 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 Reading and thinking教学设计

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

    The theme of this activity is to learn the first aid knowledge of burns. Burns is common in life, but there are some misunderstandings in manual treatment. This activity provides students with correct first aid methods, so as not to take them for granted in an emergency. This section guides students to analyze the causes of scald and help students avoid such things. From the perspective of text structure and collaborative features, the text is expository. Expository, with explanation as the main way of expression, transmits knowledge and information to readers by analyzing concepts and elaborating examples. This text arranges the information in logical order, clearly presents three parts of the content through the subtitle, accurately describes the causes, types, characteristics and first aid measures of burns, and some paragraphs use topic sentences to summarize the main idea, and the level is very clear.1. Guide students to understand the causes, types, characteristics and first aid methods of burns, through reading2. Enhance students’ ability to deal withburnss and their awareness of burns prevention3. Enable students to improve the ability to judge the types of texts accurately and to master the characteristics and writing techniques of expository texts.Guide students to understand the causes, types, characteristics and first aid methods of burns, through readingStep1: Lead in by discussing the related topic:1. What first-aid techniques do you know of ?CPR; mouth to mouth artificial respiration; the Heimlich Manoeuvre

  • 新人教版高中英语选修4Unit 4 Sharing教案

    新人教版高中英语选修4Unit 4 Sharing教案

    【核心素养提升点】学会将抽象信息进行可视化表达,提高信息处理能力和分析、推理等高阶思维品质;在跨文化交际中学会以国际视野接受和包容不同的文化。 5.Read Paragraph 2, draw a mind map and answer the questions. Q1:What did Jo learn about Tombe’s life? Q2:What kind of life do the natives lead? Read paragraph 2-5 and draw a mind-map. (Focus on accommodation, possession, diet and belief) 【设计意图】引导学生利用思维导图和问题链等形式来厘清当地人的生活方式,更好地处理和归纳信息 【核心素养提升点】提高信息处理能力、分析和归纳能力,包容异国文化、扩展国际视野。 6.Read Paragraph 3 and answer the questions. Q1:What was Jo’s feeling upon arriving her own home? Q2:Why would she feel that way? Q3:Do you think “It was such a privilege to have spent a day with Tombe’s family”? 【设计意图】通过提问,让学生理解Jo的苦并快乐的心情,并通过对“It was such a privilege to have spent a day with Tombe’s family”这句话的理解,体验志愿者生活的伟大。 【核心素养提升点】学会对信息的综合和归纳,从而理解作者所表达的观点。 Activity4: Summarize the change of Jo's feelings

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    新人教版高中英语选修4Unit 5 Language Your Career教案

    本单元阅读文本向中学生推荐职业能力测试(Career Aptitude Test),旨在建议学生利用职业倾向测试来发现自己更感兴趣、更有潜力的学习或职业方向,并规划自己的未来职业。 本文采用了建议性文本,全篇从职业生涯的重要意义讲起,针对中学生对职业规划比较迷茫的现状,提出了职业倾向测试这一建议。全文共七段,其中第一段和第二段为第一部分,其余五段为第二部分。第一部分论述职业的重要性和职业生涯规划的最佳时间是在校期间,第二部分提出解决职业选择困惑可以通过完成职业能力测试,介绍了不同种类的职业倾向测试,结合图表详细说明其中一种操作步骤,并提醒职业建议也基于学历和经验,最后一段概括论述,建议学生通过职业能力测试这一有效的工具,找到自己真正热爱的事物。 在文本教学设计时,要帮助学生梳理有关职业的话题语言。阅读策略层面,指导学生通过学习图表和图形,在有限的空间内获取广泛信息,如阅读图表标题,图表上的标签,X轴Y轴上的数据所指。

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    5.对土星五号火箭和登月舱的质疑现代航天飞机只能把20吨载荷送上低轨,而当 年的土星五号却能轻而易举地把100吨以上载荷送上地球轨道,将几十吨物体推出地球重力圈,为什么后来却弃而不用,据说连图纸都没有保存下来?6.温度对摄影器材的影响月面白天可达到121°C,据图片看,相机是露在宇航服外而没有采用保温措施的。胶卷在66°C就会受热卷曲失效,怎么拍得了照片?这些人士认为,对以上这一切美国政府一直没个 交代,而知情者由于担心生活和安全受到影响,甚至可能直接遭到了胁迫,至今对此沉默不言。但相信不久的将来,诞生于美苏太空竞赛年代的“登月骗局”定会水落石出。反驳不过,也有许多人认为“阿波罗”登月计划不可能造假:首先因为该计划当时是在全球实况转播的,近亿人亲眼看到。另外,宇航员还从月球带回了一些实物,如岩石。

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