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人教版高中生物必修3第六章第二节《保护我们共同的家园》说课稿

  • 幼儿园开学第一课教案

    幼儿园开学第一课教案

    二、防范为主,警钟常鸣  幼儿年龄小,来到幼儿园就是我们的孩子,孩子的安全是健康学习生活的首要条件。作为一名教师,要时常向自己敲响安全的警钟,从幼儿入园的一瞬间就要时刻排查有可能出现的安全问题,如晨检中是否有孩子带了不安全的物品入园,哪一个孩子身体不舒服,需要多加关注,午休时要特别叮嘱值班的教师,做好交接班工作,是否有孩子穿了不适合运动的服装等等;带孩子户外活动,要提前检查玩具的安全性。

  • 幼儿园中班美术教案:神秘印第安人

    幼儿园中班美术教案:神秘印第安人

    2、能大胆想象,尝试在废旧纸筒上用多种材料进行制作,体验造型活动的乐趣。  活动准备:  1、有关印第安人的图片、视频。   2、收集各种废旧餐巾纸筒、保鲜膜纸筒、毛线、麻绳、彩纸、边角布料、剪刀、胶棒等。  活动过程: 一、预热阶段   1、老师用故事的形式引出神秘的印第安人,讲述他们特有的生活方式,引起幼儿兴趣。   2、播放印第安人生活和舞蹈的视频,初步了解印第安人原始的生活气息。   二、图形刺激   引导幼儿欣赏、感受印第安人脸部造型和装饰特点。   1、师:你看到的印第安人长得什么样子?他们是怎样打扮自己的?   你觉得什么地方最特别?

  • 第22个“全国中小学安全教育日”国旗下讲话稿:珍爱生命,安全第一

    第22个“全国中小学安全教育日”国旗下讲话稿:珍爱生命,安全第一

    尊敬的各位老师,亲爱的同学们:大家上午好!三月,是春风和煦、万木吐绿的美好季节,俗话说:“一年之际在于春。”人们把许多纪念日都放在了三月,如:3月5日“学习雷锋”纪念日,3月8日国际劳动妇女节,3月12日植树节,3月15日国际消费者权益日。今天我讲的是大家可能还不太熟悉的一个纪念日:那就是“全国中小学安全宣传教育日”。1996年由国家教委等有关部门规定,每年三月最后的一个星期一被定为“全国中小学安全教育日”。今天是第22个“全国中小学安全教育日”。我今天国旗下讲话的题目是:《珍爱生命,安全第一》。当我们随着一声清脆的啼哭声降落到人间,这就标志着又给人世间增添了一份宝贵的财富。因此我们要懂得在人生的路上走好每一步,处处小心,时时提防,保持警惕的头脑,绷紧安全之弦。事事处处想到“安全”二字。学校高度重视校园安全工作,采取了多种加强校园安全的措施。对同学们多次进行交通安全、运动安全、食品安全、用电用气安全、防火安全等教育,以提高我们的安全意识,提高我们自我保护的能力。但是,还有一些同学视安全隐患而不顾,如课间在走廊里打闹;上下楼梯时互相拥挤

  • 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.

  • 新人教版高中英语选修1Unit 1 People of Achievement教案

    新人教版高中英语选修1Unit 1 People of Achievement教案

    【设计意图】 基于上述分析,学生总结新闻故事语篇类型的特征,即标题的省略性、导语的概括性、数据的支撑性和引语的重要性。在此过程中,学生对新闻故事语篇类型有了更深层次的了解,对于学生阅读和写作具有重要意义。Activity 7: Discussing to make a writing outline.本活动为实现课时目标3。1.Discuss and make an outline.Ask students to discuss in groups of four and make their own writing outline.To celebrate the 70th anniversary of the People’s Republic of China, our school newspaper starts a new column about “People of Achievement”. You plan to write a news story about one of the winners of the Medal of the Republic in 2019, including Yu Min, Shen Jilan, Sun Jiadong, Li Yannian, Zhang Fuqing, Yuan Longping, Huang Xuhua and Tu Youyou.【设计意图】 教师创设情境,即为庆祝新中国成立70周年,校报新增有关卓有成就人物的栏目,你将从共和国勋章获得者中,选择一位写一篇新闻故事,向该栏目投稿。学生以小组合作形式,展开讨论,并写出新闻故事框架,有助于学生课后收集人物信息,撰写新闻故事。

  • 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 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1Unit 4 Body Language教案

    新人教版高中英语选修1Unit 4 Body Language教案

    本阅读材料的话题是交际中的肢体语言,作者从三个方面讲述了肢体语言的特征与作用,通过主题句和举例阐述的方式让读者了解不同文化中肢体语言的相同或者不同的意义,并从更抽象、概括的维度深入认识肢体语言的特点,理解肢体语言的作用。基于肢体语言的特点,作者提醒读者在与人交流中,尤其是当文化背景有差异的时候,要使用得体的肢体语言,尊重、理解和包容不同的文化,进行有效、有素养的沟通。文本共由六个段落组成,篇章结构为“总—分”。第一段用简练的语言引出了话题,并且从我们自身表达的需要和了解他人感受两个角度讲述了肢体语言的作用。第二段阐述了肢体语言的第一个重要特点——肢体语言在不同的文化中有不同的内涵——这也是文中写作篇幅最大的一个要点,最为重要。通过讲述肢体语言的这一特点,作者向读者传递了要尊重不同的文化、要使用与所在文化相宜的肢体语言。

  • 新人教版高中英语选修1Unit 5 Working the Land教案

    新人教版高中英语选修1Unit 5 Working the Land教案

    1. 完成文本主要信息填空(斜体字部分设空):As a witness to farmers’ poor harvests and even a severe shortage of food, Yuan Longping was determined to devote his life to tackling this crisis. After graduation, he realized that what farmers needed most was to boost yields in the fields. Yuan was convinced that the answer lay in the creation of hybrid rice, one characteristic of which is that it usually achieve higher output than conventional crops. However, it was no easy job. The first difficulty he needed to overcome was scientists’ general assumption that this could not be done. Through trial and error, Yuan managed to generate this incredible crop. It is estimated that about 60 percent of domestic rice consumption in China was comprised of crops generated from Yuan’s hybrid strains. His innovation has enabled Chinese farmers to considerably expand their output and helped feed the world. Unwilling to retire early to a life of leisure and unconcerned about celebrity or fortune, Yuan continues to turn one vision after another into realities.2. 模仿写作:Do some research via the Internet and introduce another agricultural scientist, Chen Risheng(陈日胜), using the structure, expressions and writing techniques you have learnt from the text “A Pioneer for All People”.【设计意图】任务1是对文本内容和词汇学习成效的检测。任务2借助文本中学到的词汇和写作手法仿写另一位科学家,提升学生迁移运用词汇、文体结构和写作方法的能力。

  • 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 2 Reading and thinking教学设计

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

    Her tutor told her to acknowledge __________ other people had said if she cited their ideas, and advised her _______(read) lots of information in order to form __________wise opinion of her own.Now halfway __________ her exchange year, Xie Lei felt much more at home in the UK. She said __________ (engage) in British culture had helped and that she had been__________ (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger __________(build) a bridge between the two countries. keys:Xie Lei, a 19­year­old Chinese student, said goodbye to her family and friends in China and boarded (board) a plane for London six months ago in order to get a business qualification. She was ambitious(ambition) to set up a business after graduation. It was the first time that she had left (leave) home.At first, Xie Lei had to adapt to life in a different country. She chose to live with a host family, who can help with her adaptation (adapt) to the new culture. When she missed home, she felt comforted (comfort) to have a second family. Also Xie Lei had to satisfy academic requirements. Her tutor told her to acknowledge what other people had said if she cited their ideas, and advised her to read lots of information in order to form a wise opinion of her own.Now halfway through her exchange year, Xie Lei felt much more at home in the UK. She said engaging (engage) in British culture had helped and that she had been involved (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger building a bridge between the two countries.

  • 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 Reading for writing教学设计

    新人教版高中英语选修2Unit 4 Reading for writing教学设计

    假定你是英国的Jack,打算来中国旅行,请你给你的中国笔友李华写一封信,要点如下:1.你的旅行计划:北京→泰山→杭州;2.征求建议并询问他是否愿意充当你的导游。注意:1.词数80左右(开头和结尾已给出,不计入总词数);2.可以适当增加细节,以使行文连贯。参考词汇:故宫 the Forbidden City;泰山 Mount TaiDear Li Hua,I'm glad to tell you that 'm going to visit China.First,I am planning to visit Beijing,the capitalof China,where I am looking forward to enjoying the Great Wall,the Forbidden City and somebeautiful parks.Then I intend to go to visit Mount Tai in Shandong Province.I've heard that it is one ofthe most famous mountains in China and I can't wait to enjoy the amazing sunrise there.After that,I amalso going to Hangzhou.It is said that it is a beautiful modern city with breathtaking natural sights,among which the West Lake is a well- known tourist attraction.What do you think of my travel plan? Will you act as my guide? Hope to hear from you soon.

  • 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 Learning about Language教学设计

    新人教版高中英语选修2Unit 5 Learning about Language教学设计

    The purpose of this section of vocabulary exercises is to consolidate the key words in the first part of the reading text, let the students write the words according to the English definition, and focus on the detection of the meaning and spelling of the new words. The teaching design includes use English definition to explain words, which is conducive to improving students' interest in vocabulary learning, cultivating their sense of English language and thinking in English, and making students willing to use this method to better grasp the meaning of words, expand their vocabulary, and improve their ability of vocabulary application. Besides, the design offers more context including sentences and short passage for students to practice words flexibly.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.Step1: Read the passage about chemical burns and fill in the blanks with the correct forms of the words in the box.

  • 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

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