-
人教版高中英語(yǔ)必修4A taste of English Humor說課稿3篇
Then I would ask them to think of a funny English or Chinese and tell it to partners. While telling stories, they can use expressions and some acting to help make the story funny. 5 minutes would be given to do this.Those stories they told there will be the material for their writing. Soletting them tell it at first is helpful. And they can make a difference between telling a funny story and writing it down. Generally speaking, it is difficult forstudents to write well because they don’t know what to write and how to write. Asking them to tell their own stories at first can help them come up with what to write.After their telling, I would invite someone to share his/her story with all of us and I would write it down on the blackboard.This example story would be used as a sample to illustrate the format of funny story. Different from a story from teacher or textbook, a story from students can obviously become a interesting material to draw students’ attention.Then I would ask the whole class to put this story into several parts. It might be a little bit difficult for them. So I would ask them to find out whether all the sentences are necessary. After delete some sentences, there are 6 sentences left behind. Then they can easily put them into three parts. After interaction with students, I would teach them the right terms for each part and conclude the format of funny story.This step is the key and difficult point in my lesson. So I mainly usetask-based teaching method in this part and the task for students was divided into several stages. With the separated difficult level, students can find there are usually three parts in writing. They can also learn to write without the unnecessary parts in the process of analyzing. And then I wouldn’t rush to tell them the right terms to them directly. Instead, I would ask them to name them by their own. A confused mind is better for acquiring knowledge.While-writing:Then I would give students 7 minutes to write down this story, without other requirements.With all the preparations in pre-writing, students’ difficulties were cleared. So it would be much easier for them to write down the story within 7 minutes. There are no other requirements because students’ first writing is actually a drafting. It would be revise and edit several times later. Writing, as a skill
人教版高中英語(yǔ)必修3Canada-the true north說課稿4篇
Good afternoon, teachers, It’s my great pleasure to be here sharing my lesson with you.The content of my lesson is Senior English Book 3 Unit 5 Canada —— “The true North”.I’ll be ready to begin this lesson from five parts. Analysis of the teaching material,the teaching methods,the studying methods, the teaching procedure,and Blackboard design.First, let me talk about the teaching material.Part 1 Teaching Material:This unit is about the introduction of Canada. By studying of this unit,we’ll enable the students to learn the geography, population, main cities, and natural beauty, natural resources of Canada. Through the training of the unit, it also requires students to learn some Language skills such as the expressions of position and emotions.So it plays an important part in the English teaching in this book.After studying the teaching material and analyzing the rule of children’s growing of mind,I think the teaching aims are the followings:1.Knowledge objects:(1) make the students learn some new words and phrases(2) make the students understand the content of the lesson.2.Ability objects:(1)To develop the Ss’ abilities of listening, speaking, reading and writing. Especially reading and speaking ability.(2) learn to talk about the characters of Canada in English(3)To train the Ss’ ability of working in pairs.3.Emotion objects:(1)Enable students to understand the characters of Canada..(2)Stimulate Ss to work hard to make China stronger.Part 2 Teaching Methods:I think helping students learn to master new words and phrases and improve the students’ reading and speaking ability is import and the difficult.According to the analysis of the teaching material and the import points and the difficult points,I will use the following teaching methods : question-guiding approach; fast-reading and careful reading; multi-media teaching methods; discussion
人教版高中英語(yǔ)必修3Festivals around the World說課稿3篇
Teaching plan for Unit 1 book3Good morning, teachers. It’s my great pleasure to be here because I can share my lesson with you and I can learn a lot from it. I’ll begin my lesson from the following four parts， the teaching material, the teaching methods, the studying methods and the teaching procedure.Firstly, let me talk about the teaching material. The content of my lesson is the reading passage festivals and celebrations of Unit 1 Festivals around the world. This passage is about festivals and celebrations. By studying this passage, we’ll enable the students to know that festivals exit everywhere, and many of festivals in different countries celebrate similar ideas. As we all know, the reading passage is the center of each unit. If the Ss can learn it well, it will be helpful to make the Ss learn the rest of this unit.After studying the teaching material, I think the teaching aims are as the followings:1. Knowledge aims:(1) The Ss can master the usage of the important words andexpressions.(2)The Ss can use the __________________ (grammar) in the proper situation.Make students know about the festivals all over the world and the detail of the festivals, such as origin, content, and the date of the holiday festivals.2. Ability aims:(1) Students can talk about festivals and celebrations in English(2) To improve the student’s reading ability, especially their skimming and scanning ability.3. Emotion aims:Make the Ss know about the foreign festivals, and respect other countries’ custom.Next, let’s come to the important points and the difficult points.The important point is how to make the Ss understand the text better and the difficult point is how can they talk about it. secondly， Teaching Methods:1. task-based Language Teaching2. Computer assisted language teaching.3. question-and–answer methodThirdly， Studying Methods:
人教版高中英語(yǔ)必修3Healthy Eating說課稿4篇
Language learning needs a context, which can help the learners to understand the language and then can product comprehensible output, so computer has the advantages to make the materials attractive.Part 3 Learning MethodsTask-based, self-dependent and cooperative learningPart 4 Teaching ProcedureStep One Lead-in“Interest is the best teacher.” Therefore, at the very beginning of the class, I should spark the students’ mind to focus on the centre topic “the band”. I’ll show some pictures of food to attract their attention and then bring some questions.Question:What kind of food they like?What should go into a good meal?The answers must relate to the diet. After this, the students will be eager to know something about a balance diet and this is the very time to naturally lead the class into Step 2Step 2 Reading for information: skimming and scanning In this step, I use Task-based Language Teaching method, which can give students a clear and specific purpose while skimming and scanning the context.Task 1 General ideaThe students will be asked to just glance at the title and the pictures of the passage, and then guess what they will read in the text. And they’ll be divided into groups of four to have a discussion.The purpose is to inspire the students to read actively, not passively. In addition, the task is to develop the students’ reading skill by making prediction and to encourage the students to express their thoughts in English and cooperate with each other.Task 2 Main idea of each paragraphCooperative learning can raise the students’ interest and create an atmosphere of achievement. Based on this theory, I divide the whole class into 4 groups to skim the whole text and get the main idea of each paragraph.
人教版高中英語(yǔ)必修3The million pound bank note說課稿3篇
在接下來(lái)的細(xì)讀環(huán)節(jié)，我套用了高考對(duì)閱讀理解的考查方式設(shè)置了5個(gè)問題，分別為三個(gè)推理判斷題，一個(gè)細(xì)節(jié)題和一個(gè)主旨大意題。學(xué)生需要對(duì)文章的內(nèi)容進(jìn)行分析、歸納、推理、猜測(cè)等高級(jí)思維活動(dòng)才能做出正確的回答?！驹O(shè)計(jì)意圖】這一過程是對(duì)學(xué)生進(jìn)行細(xì)讀的訓(xùn)練，培養(yǎng)學(xué)生獲取特定信息和挖掘文章深層次信息的能力。第三環(huán)節(jié):Intensive-reading (精讀) 15′第三個(gè)環(huán)節(jié)精讀，既是最重要的環(huán)節(jié)，也是突破本課重難點(diǎn)的關(guān)鍵。首先，讓學(xué)生思考劇本中人物看到百萬(wàn)英鎊前后的態(tài)度發(fā)生了怎樣的變化。其次，讓學(xué)生仔細(xì)閱讀文章，找出可以表現(xiàn)人物態(tài)度變化的具體的語(yǔ)言和動(dòng)作。最后，讓學(xué)生總結(jié)人物的態(tài)度發(fā)生變化的根本原因是什么，從而引出Money Talks, 供學(xué)生思考。【設(shè)計(jì)意圖】通過一系列的活動(dòng)培養(yǎng)學(xué)生學(xué)習(xí)從人物的語(yǔ)言和動(dòng)作探究人物的心理，使學(xué)生進(jìn)一步體會(huì)戲劇語(yǔ)言的魅力，從而對(duì)文章背后所反映的社會(huì)問題進(jìn)行思考，也為下一步的討論環(huán)節(jié)做好鋪墊。
人教版高中英語(yǔ)必修5First aid說課稿6篇
In this class, I have 3 teaching aims, that is, knowledge aims, ability aims and emotion aims.1) Knowledge-Teach students new words and expressions, such as temporary, bleed,sprain choke, first aid, fall ill and so on.-Enable students to have a better understanding for some basic knowledge of first aid.2) Ability-Train students’ speaking, reading and writing abilities by different teaching activities, such as skimming, comprehending, team work, role play, retelling and writing.-Develop students’ reading strategy on how to move general idea to specific information.3) Emotion-Promote students’ awareness of giving first aid.- Cultivate students’ creativities.Then let’s come to my teaching methods and activities.III. Teaching methods and activities:To achieve different teaching aims, various kinds of teaching methods and activities will be adopted throughout this period, such as TBL (task-based learning), skimming, team work, brainstorm and others, which can offer students opportunities to fulfill tasks in which they can use language to achieve a specific outcome.IV. Teaching aids:Computer and blackboardV. Teaching important points:1) Make students have a clear mind for the structure of the text.2) Help students understand the theme of the text.VI. Teaching difficulties:1) So many new words may affect students’ understanding.2) How to get students to know about the functions of the skin and thecauses, characteristics and treatments for different degree burns,and the knowledge about giving first aid. VII. Blackboard design:
人教版高中英語(yǔ)必修5Great scientists說課稿4篇
通過寫文章梗概，培養(yǎng)學(xué)生綜合運(yùn)用語(yǔ)言的能力，學(xué)習(xí)用恰當(dāng)?shù)挠⒄Z(yǔ)描述科學(xué)家的故事。這是本課的教學(xué)難點(diǎn)。教師可以使用完形填空的方式來(lái)幫助學(xué)生整理語(yǔ)篇，從而來(lái)降低難度。本課的教學(xué)重點(diǎn)的突破方法是：在閱讀前，讓學(xué)生初步了解得出科學(xué)觀點(diǎn)所需要的基本程序，從而輕松而自然地導(dǎo)入文章的閱讀；在閱讀過程中，由易到難設(shè)計(jì)快速閱讀和精讀的問題，層層推進(jìn)各種閱讀活動(dòng)，讓學(xué)生對(duì)閱讀內(nèi)容從整體感知到細(xì)節(jié)理解，最后深層讀懂整篇文章，同時(shí)加強(qiáng)閱讀策略的指導(dǎo)，讓每個(gè)學(xué)生都主動(dòng)參與課堂教學(xué)活動(dòng)，最終達(dá)到提高閱讀能力的目的。Step 4 Post-readingGroup Activities四人小組共同合作，在老師的適當(dāng)指導(dǎo)下，就以下2個(gè)問題展開討論，讓學(xué)生就所知、所學(xué)、所感和所想融入話題，然后抽若干同學(xué)代表作小組發(fā)言。1. What do you think about John Snow, and what should we learn from him?2. Cholera was 19th century disease, which two diseases are similar to cholera today? Why?
人教版高中英語(yǔ)必修5Life in the Future說課稿5篇
Good afternoon, everyone. It’s my great pleasure to be here sharing my lesson with you. The content of my lesson is Senior English for China Book5 Unit 3 Life in the Future. I’ll be ready to begin this lesson from six parts: Analysis of the teaching material, Analysis of the students, Teaching aims and important and difficult points, Teaching methods and aids, Teaching procedures, and Blackboard design. First, let me talk about the teaching material.Part 1 Analysis of the Teaching Material:This unit is about what human beings’ life will be like in about one thousand years. By studying of this unit, we’ll Enable the students to know the changes in humans’ life and some new inventions bringing about the change and develop the interest in science. This lesson plays an important part in the English teaching in this unit. This is an important lesson in Book Five. From this lesson, it starts asking the Ss to grasp contents of each passage. Therefore, this lesson is in the important position of the teaching material. If the Ss can learn it well, it will be helpful to make the Ss learn the rest of this unit.Part 2 Analysis of the SsAs Senior2 Ss, they are at different levels of English fluency, some of them have lost interest in English. So during the lesson, I arrange a variety of activities to let all of them join in to attract their interest and let them be confident and taste the joy of success.
人教版高中英語(yǔ)必修5Making the news說課稿4篇
今天我們來(lái)介紹一下必修五第四單元的授課方式。這個(gè)單元的題目是Making the news。應(yīng)該是學(xué)生比較感興趣的話題，學(xué)生往往對(duì)新聞工作充滿好奇，所以我們可以利用這個(gè)機(jī)會(huì)多設(shè)計(jì)一些師生互動(dòng)和學(xué)生互動(dòng)，來(lái)激發(fā)起學(xué)習(xí)的積極性，提高學(xué)習(xí)效率。同時(shí)我們可以利用這個(gè)單元不僅幫助學(xué)生掌握語(yǔ)言知識(shí)，培養(yǎng)語(yǔ)言能力，同時(shí)讓其了解新聞工作的重要性，培養(yǎng)起社會(huì)智能感。這個(gè)單元分為六個(gè)課時(shí)，它的教學(xué)目標(biāo)是這樣的：語(yǔ)言目標(biāo)是掌握詞匯表中的常用單詞和短語(yǔ)，掌握倒裝句的一些基本用法。 技能目標(biāo)是能初步掌握約會(huì)的基本句型并在真實(shí)的場(chǎng)景下正確運(yùn)用。新聞報(bào)道類文章的寫作技能。采訪的基本規(guī)范和溝通技能。情感目標(biāo)是對(duì)新聞報(bào)道的客觀性和真實(shí)性有更好的理解。對(duì)新聞?dòng)浾叩穆殬I(yè)有更深入的了解，并能體會(huì)其工作的重要性。下面我們來(lái)介紹一下第一課時(shí)的授課方式，第一課的教學(xué)目標(biāo)是這樣的第一課時(shí)的教學(xué)目標(biāo)語(yǔ)言目標(biāo):單詞：Occupation, journalist, editor, photographer, curious, personality, enthusiasm
人教版高中語(yǔ)文必修2《囚綠記》說課稿2篇
“深入探究，把握主旨”這一步則是解決教學(xué)的重點(diǎn)難點(diǎn)，這里涉及到課文的深層意蘊(yùn)，學(xué)生理解有難度，教師在通過問題引領(lǐng)學(xué)生探討的基礎(chǔ)上，還要適時(shí)啟發(fā)、點(diǎn)撥，因?yàn)榻虒W(xué)時(shí)間有限，讓學(xué)生漫無(wú)邊際的討論，可能難以完成預(yù)定的教學(xué)任務(wù)，會(huì)使教學(xué)過程不完整。至于本文的寫作特點(diǎn)的教學(xué)視時(shí)間而定，有時(shí)間可以讓學(xué)生說一說，沒有時(shí)間用小黑板出示一下，讓學(xué)生了解就行，如果時(shí)間不夠，甚至可以不講。第三階段是“延伸練習(xí)，鞏固提高”。
人教版高中語(yǔ)文必修2《赤壁賦》說課稿3篇
[教學(xué)反思]人教版高中語(yǔ)文必修二第三單元安排了《蘭亭集序》《赤壁賦》《游褒禪山記》三篇古代山水游記散文，它們借游賞之事，探索生命的意義、治學(xué)的道理。師者，所以傳道、授業(yè)、解惑也。高中的教材選用的都是歷史經(jīng)典名篇，每一篇都閃爍著儒道釋等百家光輝的思想。編者要老師傳道的意圖很明顯。即非如此，看著這些影響歷代、影響世界的如日月之耀眼光華的偉大思想就躺在我們的教科書里，又如何能不講呢？所以，我將本課的教學(xué)重難點(diǎn)擬定為：幫助學(xué)生建立積極的生死觀，掌握多角度看問題的正確的思想方法。當(dāng)然，也讓學(xué)生領(lǐng)會(huì)了融寫景、抒情、說理于一爐的大家手法。整堂課各教學(xué)環(huán)節(jié)，環(huán)環(huán)相扣，過渡自然，讀、思、議、寫訓(xùn)練到位，而且全部圍繞“生死觀”展開，如一篇形散神不散的散文。
人教版高中語(yǔ)文必修2《短歌行》說課稿2篇
一、說教材《短歌行》是普通高中課程標(biāo)準(zhǔn)實(shí)驗(yàn)教科書必修（二）第二單元的一篇略讀課文，本單元安排的是先秦到南北朝時(shí)期的詩(shī)歌?！抖谈栊小肥侵渭?、軍事家、文學(xué)家曹操的作品。詩(shī)中抓住“憂”字來(lái)寫詩(shī)人為什么“憂”，如何解“憂”，從而表達(dá)希望能夠招攬人才、完成統(tǒng)一天下的雄心壯志。所以本單元安排《短歌行》一詩(shī)，對(duì)學(xué)生全面了解曹操，感受曹操在短暫的人生中竭力創(chuàng)造偉業(yè)的氣概。二、說學(xué)生我這一課的教學(xué)對(duì)象是高一學(xué)生。他們進(jìn)入高中學(xué)習(xí)的時(shí)間只有三個(gè)多月，現(xiàn)在已經(jīng)完成了必修（一）的學(xué)習(xí)。學(xué)習(xí)了現(xiàn)代詩(shī)歌單元，有了一定的詩(shī)歌學(xué)習(xí)基礎(chǔ)，初步掌握了讀詩(shī)的基本方法，但是還未能形成成熟的穩(wěn)定的學(xué)習(xí)方式。同時(shí)，本單元學(xué)習(xí)是高中第一次接觸古代詩(shī)歌，詩(shī)歌語(yǔ)言上的障礙和時(shí)間上的跨度對(duì)他們來(lái)說都是學(xué)習(xí)上的困難。因此教師要引導(dǎo)學(xué)生自主學(xué)習(xí)，合作學(xué)習(xí)，為他們?cè)O(shè)置新的學(xué)習(xí)情境，提供合作探究的機(jī)會(huì)。
人教版高中語(yǔ)文必修2《故都的秋》說課稿3篇
請(qǐng)一位朗誦水平較好的學(xué)生，有感情的朗讀課文12自然段，其他同學(xué)完成一項(xiàng)任務(wù)：這一段可否去掉？為什么？學(xué)生思考、圈畫、交流、討論，然后小組發(fā)言，其他小組補(bǔ)充，教師從旁予以點(diǎn)撥，引導(dǎo)學(xué)生進(jìn)一步明確作者的思想情感。明確：作者要?jiǎng)?chuàng)造一種文化氛圍，于自然氣息之外再添一重文化氣息，與“故都”題旨暗合。從行文章法上看，這里是宕開文筆，縱橫議論，顯出深厚的文化底蘊(yùn)和開闊的思路。這一段采用議論，通過古今中外的引證，說明感秋處處有，中國(guó)文人最突出，而秋“深味”非在中國(guó)北方莫屬，這其實(shí)還是為了突出故都之秋。（設(shè)計(jì)意圖：提高學(xué)生探究的能力，充分把握本文的教學(xué)內(nèi)容，深刻體悟作者的情感，了解作者對(duì)秋的禮贊情感，從而突破教學(xué)難點(diǎn)。）
人教版高中語(yǔ)文必修3《林黛玉進(jìn)賈府》說課稿5篇
【教學(xué)目標(biāo)】我設(shè)置的本課的教學(xué)目標(biāo)有三個(gè):1、知識(shí)與技能(1)了解曹雪芹及《紅樓夢(mèng)》(2)學(xué)習(xí)通過一個(gè)人物的行蹤、所見所聞,介紹典型環(huán)境,認(rèn)識(shí)封建貴族階級(jí)豪奢極恥的生活以及森嚴(yán)的等級(jí)、禮儀制度(3)分析小說人物出場(chǎng)的描寫藝術(shù)，培養(yǎng)學(xué)生分析小說人物形象的能力。(4)一葉落而知秋”，通過對(duì)“林黛玉進(jìn)賈府”這一故事情節(jié)的把握是否能引發(fā)對(duì)《紅樓夢(mèng)》的認(rèn)知興趣，并找到一個(gè)突破口，有針對(duì)性地進(jìn)行自主探究，進(jìn)而進(jìn)行個(gè)性化解讀。（5）整體認(rèn)知小說,認(rèn)識(shí)小說悲劇的必然性和思想價(jià)值.2、過程與方法(1)用直觀演示和歸納探究法分析文章要點(diǎn)。(2)用討論探究法體驗(yàn)作者對(duì)文中人物的情感態(tài)度。3、情感態(tài)度價(jià)值觀(1)正確理解《紅樓夢(mèng)》的思想內(nèi)涵,培養(yǎng)學(xué)生熱愛祖國(guó)傳統(tǒng)文化的思想感情。(2)認(rèn)識(shí)封建大家族的腐朽沒落,理解賈寶玉追求個(gè)性自由反封建的精神。
人教版高中語(yǔ)文必修3《馬嵬（其二）》說課稿
生2：頷聯(lián)的意思是只聽到禁衛(wèi)軍中傳來(lái)夜間巡邏的梆子聲，不再向?qū)m中那樣安逸地聽到有雞人打鳴報(bào)時(shí)的聲音了。生3：頸聯(lián)的意思是說事變發(fā)生那天軍隊(duì)發(fā)生嘩變停留不前，但當(dāng)年唐玄宗以為自己可以和貴妃天天在一起，對(duì)天上的牽牛和織女一年一度的會(huì)見還加以嘲笑呢。生4：尾聯(lián)的含義是為什么唐玄宗當(dāng)了四十五年的皇帝，還不如普通百姓夫妻恩愛，長(zhǎng)相廝守。師：好的。請(qǐng)大家再齊讀一遍詩(shī)文，做到人人都能疏通詩(shī)的含義。學(xué)生再次齊讀。第三環(huán)節(jié)：專項(xiàng)探究師：白居易曾說：“文章合為時(shí)而著，歌詩(shī)合為事而作?！边@首詩(shī)就是作者途經(jīng)馬嵬驛，詠馬嵬之變這一歷史事件而作，所以我們鑒賞的第三步，就是通過標(biāo)題和詩(shī)文，弄清詩(shī)中的歷史事件。請(qǐng)同學(xué)們找出詩(shī)中哪些詩(shī)句描述了這一事件？
人教版高中語(yǔ)文必修3《琵琶行 并序》說課稿2篇
說教材A．教材簡(jiǎn)析《琵琶行（并序）》是人教版《普通高中課程標(biāo)準(zhǔn)實(shí)驗(yàn)教科書語(yǔ)文》必修3第二單元的一篇講讀課文。本單元學(xué)習(xí)的是唐代詩(shī)歌，共七首詩(shī)?！杜眯校ú⑿颍肥翘拼F(xiàn)實(shí)主義詩(shī)人白居易寫的一首歌行體長(zhǎng)篇敘事詩(shī)，是我國(guó)古代敘事詩(shī)和音樂詩(shī)中的“千古絕喝”。詩(shī)歌主題鮮明、人物形象生動(dòng)，抒情真切細(xì)膩，具有深刻的思想內(nèi)容和卓越的藝術(shù)技巧。B．教學(xué)目標(biāo)《全日制普通高中高級(jí)中學(xué)語(yǔ)文教學(xué)大綱》明確要求我們：在閱讀教學(xué)過程中要引導(dǎo)學(xué)生“感受文學(xué)形象，品味文學(xué)作品的語(yǔ)言和藝術(shù)技巧，初步鑒賞文學(xué)作品”。而本單元的教學(xué)要求是培養(yǎng)學(xué)生詩(shī)歌鑒賞的能力。根據(jù)教學(xué)大綱和單元教學(xué)要求，結(jié)合本課特點(diǎn)，我制定本課的教學(xué)目標(biāo)是：1．知識(shí)目標(biāo)：了解文學(xué)常識(shí)；積累重點(diǎn)文言實(shí)詞；品味主旨句“同是天涯淪落人，相逢何必曾相識(shí)”的內(nèi)涵；感知作者把音樂描寫與聽者、演奏者的感情融為一體的寫作特點(diǎn)。
人教版高中生物必修2伴性遺傳說課稿
（1觀察圖解，色盲基因在性別間是如何傳遞的呢？（女--女、女--男、男--女）（2）為什么不能由男性傳給男性？（色盲基因是在X染色體上，因此色盲基因是隨X染色體的傳遞而傳遞。）（3）男性的色盲基因怎樣才能傳給男性呢？（通過女兒，傳給外孫即交叉遺傳）（4）從圖解看色盲在男女中的發(fā)病情況怎樣？（男性多于女性）（5）從社會(huì)調(diào)查也是這樣，你是否能從基因和染色體的角度加以解釋？（提示：女性染色體的構(gòu)成，結(jié)合基因位置及顯隱性進(jìn)行分析）歸納特點(diǎn)：歸納出色盲基因遺傳的特點(diǎn)并擴(kuò)展到X染色體隱性遺傳的特點(diǎn)上。色盲基因遺傳（X隱性遺傳）的特點(diǎn)：（1）男患者多于女患者（2）交叉遺傳（3）女病兒子必病，男正女兒必正等。問題探討：利用“遺傳圖解”結(jié)合“問題鏈”繼續(xù)探討，拓展到抗維生素D即X 染色體顯性遺傳的特點(diǎn)。（6）色盲基因在X染色體上屬隱性基因，子代表現(xiàn)男多于女，對(duì)應(yīng)的正常色覺基因則屬于X顯性基因，子代表現(xiàn)應(yīng)如何？（女多于男）
人教版高中生物必修2DNA的復(fù)制說課稿
設(shè)問：DNA復(fù)制后兩個(gè)子代DNA分子與親代DNA分子是否完全相同？為什么？通過設(shè)問，讓學(xué)生進(jìn)一步理解和鞏固DNA復(fù)制的全過程。接下來(lái)讓學(xué)生總結(jié)出DNA復(fù)制的四大基本條件：① 模板：開始解旋的DNA分子的兩條單鏈；② 原料：是游離在核液中的脫氧核苷酸；③ 能量：是通過水解ATP提供；④ 酶：酶是指一個(gè)酶系統(tǒng)，不僅僅是指一種解旋酶。最后通過以上分析，總結(jié)出DNA復(fù)制的意義以及在生活中的應(yīng)用：意義：DNA通過復(fù)制，使遺傳信息從親代傳給子代，從而保證了物種的相對(duì)穩(wěn)定性，保持了遺傳信息的連續(xù)性，使物種得以延續(xù)。應(yīng)用：目前DNA分子廣泛應(yīng)用于刑事案件偵破等方面：如：DNA分子是親子鑒定的主要證據(jù)之一。把案犯在現(xiàn)場(chǎng)留下的毛發(fā)、血等進(jìn)行分析作為破案的證據(jù)，與DNA有關(guān)。五、設(shè)計(jì)課堂練習(xí)：設(shè)計(jì)一題典型課堂練習(xí)：即有關(guān)半保留復(fù)制及計(jì)算的習(xí)題：
人教版高中生物必修2染色體變異說課稿
四、說教學(xué)程序（一）.溫故知新、導(dǎo)入新課復(fù)習(xí)提問:基因突變導(dǎo)致生物變異的原因是什么?回答:基因突變是基因結(jié)構(gòu)發(fā)生改變，從而使遺傳信息改變，使蛋白質(zhì)結(jié)構(gòu)改變、生物性狀改變，即生物發(fā)生了變異。那么，基因是什么?它和染色體又有何關(guān)系?回答:基因是有遺傳效應(yīng)的DNA片斷，染色體是DNA的載體，基因在染色體上呈線形排列。引出新知:對(duì)于一個(gè)生物體來(lái)說，正常情況下，其染色體的結(jié)構(gòu)和數(shù)量都是穩(wěn)定的。但在自然條件或人為因素的影響下，染色體的結(jié)構(gòu)和數(shù)量均會(huì)發(fā)生改變，從而導(dǎo)致生物性狀的改變，這就屬于染色體變異。（二）.把握重點(diǎn)、突破難點(diǎn)重點(diǎn)的把握：1、染色體結(jié)構(gòu)的變異播放影片:貓叫綜合征幼兒。讓學(xué)生觀察: 患兒哭聲輕、音調(diào)高，很像貓叫。教師補(bǔ)充: 患兒的征狀---兩眼較低、耳位低下，存在著嚴(yán)重的智力障礙。闡述病因---染色體片段缺失
人教版高中政治必修2共創(chuàng)幸福生活說課稿
環(huán)節(jié)三 案例分析 突破難點(diǎn)我將用多媒體展示兩組反映中學(xué)生參與民主管理的一些作法的圖片，和教材26-27頁(yè)的三個(gè)鏡頭，然后請(qǐng)同學(xué)們根據(jù)圖片和材料探究以下問題： 1. 聯(lián)系自身實(shí)際談?wù)勥@些做法對(duì)我們有何啟示？ 2．實(shí)行農(nóng)村村民自治和城市居民自治有什么意義呢？ 3. 我們?cè)趯?shí)際生活中應(yīng)怎么做？這樣，通過圖片和材料的展示，點(diǎn)明了公民參與民主管理的意義，以此來(lái)誘發(fā)學(xué)生已有的真切體驗(yàn)，感受其境，增強(qiáng)學(xué)生共創(chuàng)想和文明社區(qū)的積極性和情感。同時(shí)，我們也希望學(xué)生在學(xué)習(xí)本課的知識(shí)后，又能做到學(xué)以致用，把所學(xué)的知識(shí)真正用到社區(qū)管理中，為所在社區(qū)管理提合理建議，從而真正實(shí)現(xiàn)了知識(shí)從生活中來(lái)，又回到生活中去的理念。環(huán)節(jié)四課堂小結(jié) 課后延伸將用多媒體展示本節(jié)課的知識(shí)框架，并注重引導(dǎo)學(xué)生將今天所學(xué)新知識(shí)與前面知識(shí)聯(lián)系起來(lái)，幫助學(xué)生從宏觀上把握各知識(shí)點(diǎn)之間的關(guān)系，有利于學(xué)生理解記憶，以此來(lái)幫助教師在第一時(shí)間掌握學(xué)生學(xué)習(xí)信息的反饋，同時(shí)培養(yǎng)學(xué)生歸納分析能力、概括能力。
