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人教版高中語文必修1《紀念劉和珍君》說課稿3篇
1.說教材《記念劉和珍君》是魯迅先生用飽醮著熱淚，用悲憤的筆調(diào)寫下的一篇感人至深的散文，既有對愛國青年沉痛的悼念，又有對反動派憤怒的控訴，也有對覺醒的國民的吶喊?！队浤顒⒑驼渚肥歉咧姓Z文必修1第三單元第一課的講讀課文。文中描摹人物的音容笑貌，敘述人物的行為事跡，都融入了作者真摯的情感和深刻的感悟。對學生明辨是非，領(lǐng)悟時代精神和人生意義，有著重要的作用。新課標強調(diào)了要全面提升高中學生的語文素養(yǎng)，初步形成正確的世界觀、人生觀、價值觀，并學會收集、判斷、處理信息，具有人文素養(yǎng)、創(chuàng)新精神與實踐能力。同時，《記念劉和珍君》感情真摯，感悟深刻，具有典型人文性。結(jié)合本單元教學目標，確立教學目標如下。
人教版高中語文必修1《鴻門宴》說課稿3篇
3、拓展延伸，啟迪心智，創(chuàng)設(shè)課堂訓練營。三、說學法1、紙上得來終覺淺，圈點、勾畫、批注法，學好文言基本功。2、自主合作加探究，眼耳口腦手并用，破疑解難在其中。四、說課時安排《鴻門宴》篇幅較長，文言知識較豐富，文章內(nèi)涵豐厚，因此我設(shè)計用五課時教學本文。第一課時：了解作家作品，積累文言知識，感受作者隱忍發(fā)憤的著書精神（初讀）第二課時：理清故事情節(jié)，概括人物形象，學習客觀地評論歷史人物，（熟讀）第三課時：進一步梳理文言知識，精讀課文，要求讀透。（精讀）第四課時：通過對人物、事件的賞析，加深學生對人物的理解，鍛煉學生的開放性思維，由學生自主認識到人物的性格，悲劇的原因等問題。（賞讀）第五課時：補充課本教學內(nèi)容：同學生一起閱讀古今關(guān)于劉邦項羽的一些篇章：讓學生投入進來，把握自己眼中的項羽。（展讀）在文言文學習的過程中，采取五步學習法：初讀-熟讀-精讀-賞讀-展讀（板書）
人教版高中語文必修1《雨巷》說課稿3篇
一.教材理解教材地位與作用：本單元“閱讀與鑒賞”部分，本單元要求學生能在了解詩歌創(chuàng)作的時代背景的情況下通過反復誦讀詩歌，把握其中豐富的意象，領(lǐng)悟詩歌獨特的意境和詩人所要表達的情感?！队晗铩肥乾F(xiàn)代派大師戴望舒的成名作和前期的代表作,他曾因此而贏得了“雨巷詩人”的雅號。本單元以《雨巷》為例子給學生展示了象征主義詩歌的特點，《雨巷》運用了象征性的抒情手法。詩中那狹窄陰沉的雨巷，在雨巷中徘徊的獨行者，以及那個像丁香一樣結(jié)著愁怨的姑娘，都是象征性的意象。這些意象又共同構(gòu)成了一種象征性的意境，含蓄地暗示出作者即迷惘感傷又有期待的情懷，并給人一種朦朧而又幽深的美感。富于音樂性是《雨巷》的另一個突出的藝術(shù)特色。詩中運用了復沓、疊句、重唱等手法，造成了回環(huán)往復的旋律和宛轉(zhuǎn)悅耳的樂感。因此我把本課的教學重點和難點確定為：教學重點：通過反復誦讀，領(lǐng)略詩歌的音樂美以及分析其成因教學難點：分析意象以及其象征意義初步掌握鑒賞詩歌的方法
人教版高中英語必修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
人教版高中語文必修3《林黛玉進賈府》說課稿5篇
【教學目標】我設(shè)置的本課的教學目標有三個:1、知識與技能(1)了解曹雪芹及《紅樓夢》(2)學習通過一個人物的行蹤、所見所聞,介紹典型環(huán)境,認識封建貴族階級豪奢極恥的生活以及森嚴的等級、禮儀制度(3)分析小說人物出場的描寫藝術(shù)，培養(yǎng)學生分析小說人物形象的能力。(4)一葉落而知秋”，通過對“林黛玉進賈府”這一故事情節(jié)的把握是否能引發(fā)對《紅樓夢》的認知興趣，并找到一個突破口，有針對性地進行自主探究，進而進行個性化解讀。（5）整體認知小說,認識小說悲劇的必然性和思想價值.2、過程與方法(1)用直觀演示和歸納探究法分析文章要點。(2)用討論探究法體驗作者對文中人物的情感態(tài)度。3、情感態(tài)度價值觀(1)正確理解《紅樓夢》的思想內(nèi)涵,培養(yǎng)學生熱愛祖國傳統(tǒng)文化的思想感情。(2)認識封建大家族的腐朽沒落,理解賈寶玉追求個性自由反封建的精神。
人教版高中英語必修4Theme parks說課稿3篇
The oldest and the most popular park in the worldenjoy the exciting activities thereget close to the life-size cartoon characters like Mickey Mouse and Donald Duck Step 3 Pre-reading1.What do you suppose a theme park is ?2.What do you think you can see in a theme park?(1.It is a kind of amusement park which has a certain theme – that the whole park is based on. 2.buildings, castles, statues, rare animals and birds, and so on.) Step 4 Reading ----- Theme Parks –---- Fun and More Than Fun1.Predict : Read the title and the pictures on P. 34 and PredictWhat is the meaning of the title “Theme Park – Fun and more than fun”?(The title means that theme parks are fun to visit, but that they can also be educational and can offer useful information.)2.Skimming Fast read and answer:What activities can we take in a theme park?Amusement park: Bumper car Merry-go-round slide bungee jumping Free-fall rides Horror films Pirate ship Ferris wheel roller coaster3.Scanning Read again and you will find various theme parks are mentioned in the passage . Then what are they ?Theme parks: Sports theme park History theme park Culture theme park Marine or Ocean theme Park Future park Science theme park Disneyland4.Careful reading and find the main idea of each paragraph:THEME PARKS---- entertaining/ educationalPara.1 Traditional parks are places to go for relaxation and to have time away from our busy lives.Para.2 Theme parks are different They’re large and full of things to do, see and buy.Para.3 Theme parks are built around a single idea or theme. One example is a sports park.Para.4 Another kind of theme park is historical more and cultural and can be educational.Para.5 Disneylandwas the first theme park. It is based on the fantasy life and characters of Disney’s films.Para.6 Some examples of educational theme parks include sea world parks and science parks.
人教版高中語文必修1《沁園春·長沙》說課稿3篇
4、學習全詞：（1）背景介紹，讓學生看課文中的年代，然后讓學生回憶1925年的毛澤東的情況，老師適當提示，讓學生了解其背景。（出示幻燈片）(2)學生自由朗讀，結(jié)合注釋和背景理解詩詞。(3)師生共同理解全詞①先讓學生齊讀前三句，思考正確的語序，并用正常的語序解釋。②品味第三到第十句，這里是教學的一個重點，要讓學生先讀，再理解，在此基礎(chǔ)上訓練學生的想象能力。③分析上闕中的最后三句。④小結(jié)上闕。提出了一個問題“誰主沉浮”讓學生在文中找內(nèi)容回答，然后轉(zhuǎn)入下闕內(nèi)容的分析。⑤分析下闕內(nèi)容，回答“誰主沉浮”的問題，突出本文主旨5、描繪詩詞形象：學生用自己的語言把上闕的內(nèi)容生動地描繪出來。6、欣賞學生優(yōu)秀作品。（根據(jù)時間具體而定，也可以作為課后作業(yè)）
人教版高中英語必修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.
人教版高中英語必修4Working The Land說課稿3篇
Knowledge objectives:(1) to make Ss grasp the usage of words, expressions and sentence structures: statistics, struggle, thanks to, rid of, some patterns for persuasion, the “ing” form as subject and object;(2)to use learnt knowledge to persuade sb.Ability objectives:(1) to develop Ss’ reading skills(skimming, scanning, word guessing);(2) to improve Ss’ speaking, communicating and cooperating skills.Emotional objectives:to make Ss know the contribution of Yuan,and learn his spirit and his simple life time.Teaching important and difficult points:(1) some words, expressions and sentence structures mentioned above;(2)the content of the text;(3)training their reading and speaking skills.Teaching methods: CLT, TBLT,QT.Learning strategies: CLS, QLS, TBLS.Teaching procedures:Step 1 lead-in: (1) teacher plays a piece of recent news from CCTV about the harvest of the super hybrid rice, and ask students whether they know Yuan or not, and talk about him and his contribution.(2)Brain storm: let Ss describe Yuan in their minds including his appearance, his living condition and so on.Step 2 fast reading tasks:(1)teacher introduces Yuan and super hybrid rice(2)make Ss read the text as fast as possible with questions. Such as: what’s the general ideaof this passage? What’s Yuan’ dream? (skimming and scanning skill)Step 3 intensive reading tasks(1)let Ss read the text silently, find topic sentence of each paragraph and draw the difficult sentences and the knowledge what they don’t understand.(words guessing)(2)teacher and Ss talk about the important words, expressions and sentences together, and ask Ss to retell the content of the text.(summarizing and paraphrasing)(3)teacher summarize this part.(4) read again following the courseware.
人教版高中語文必修1《再別康橋》說課稿2篇
一、教材分析1、教學對象分析《再別康橋》的教學對象是高一學生，高一學生往往對那種純粹的、原始的、本真的情感體會較為膚淺，《再別康橋》是新月派詩人徐志摩的傳世之作，有極高美學價值，它所抒發(fā)的離愁別緒是人類共同的情感經(jīng)歷，通過誦讀容易將學生帶人詩境，喚醒他們沉寂的真情，從而引起強烈的共鳴。 2、教材地位及作用 高中語文第一冊第一單元為詩歌單元，本單元收錄了中國現(xiàn)當代的一些優(yōu)秀詩篇?！对賱e康橋》安排在本單元的第二課，屬于必讀課。雖然本詩向來眾說紛紜，但其藝術(shù)之美人所共知，培養(yǎng)學生高尚的審美情趣和良好的審美創(chuàng)造力是語文學科的任務，因此，從語言賞析入手，從情感體驗切入，就可以讓學生通過學習本課體會現(xiàn)代詩歌的特點，多方面感受體悟詩歌的情感，受到美的熏陶。
人教版高中語文必修1《包身工》說課稿2篇
（一）解題：包身工──舊社會一種變相的販賣奴隸的形式。被販賣的多是女孩子由承辦人送到工廠做工，無人身自由，所得工資全部歸承辦人所有，在這種形式下做工的人也稱包身工。包身工是指二三十年代（時間），在上海東洋紗廠里（地點），為外國人工作的女工（工作性質(zhì)）。因為這些女工在進廠時已經(jīng)簽訂了賣身契，失去了人身的自由權(quán)，所以被稱為“包身工”。標題中的“包身”二字，突出了帝國主義、封建勢力對中國女童工的殘酷剝削的罪行，控訴了他們的野蠻殘暴的統(tǒng)治手段，以激起人們的義憤和同情，這是全文的中心思想。（二）關(guān)于報告文學：《包身工》屬于報告文學。(同類題材有初中的《地質(zhì)之光》、《誰是最可愛的人》)報告文學，是文學體裁的一種，散文的一類，是文藝通訊、速寫、特寫的總稱，是文學創(chuàng)作中的“輕騎兵”。
人教版高中語文必修1《燭之武退秦師》說課稿2篇
4、本文的重點是說辭，雖僅百余字，卻委婉曲折，步步進逼，層層深入，表現(xiàn)出高超的勸說藝術(shù)、游說技巧。讓學生細細品味并概括說辭中包含幾層意思。第一層（“秦、晉圍鄭，鄭既知亡矣”），分析形勢，以退為進，博得好感。第二層（“若亡鄭而有益于君”至“君之薄也”），亡鄭陪鄰，動搖聯(lián)盟。第三層（“若舍鄭以為東道主”至“君亦無所害”），存鄭有益，利益引誘。第四層（“且君嘗為晉君賜矣”至“唯君圖之”），追溯歷史，深入離間?？梢姞T之武面對大國的君主，巧舌如簧，不卑不亢，從容辭令，既不刺激對方也不失本國尊嚴，語言的分寸掌握得恰到好處。表現(xiàn)出燭之武機智善辯的外交才能。5、面對風云突變的局勢，晉侯沒有感情用事，而表現(xiàn)了清醒的頭腦和理智的判斷。這種隱忍不發(fā)、隨機應變的胸懷和謀略，正是晉文公終成霸業(yè)的根本原因。設(shè)計意圖：本環(huán)節(jié)的重點是全面把握燭之武這一人物性格特征，以及退秦師過程中體現(xiàn)出的非凡的膽識以及高超的謀略和語言藝術(shù)。
人教版新課標高中物理必修2向心力說課稿3篇
通過這個示例呢，我們可以得到解決向心力問題的一般的步驟，確定對象，找出軌跡，找出圓心，然后進行受力分析，讓同學們參考這樣的步驟，逐步的解決圓周運動的問題，對于變速圓周運動，我通過鏈球運動進行引入，這里是一個鏈球運動的視頻，在同學們觀看視頻之前，我給同學們提出問題，鏈球收到繩子的拉力，做的是勻速圓周運動嗎？ 然后再課堂上我們再做一個小實驗， 我們可以通過改變拉線的方式來調(diào)節(jié)小球的速度大小嗎？ 那么對小球，做加速圓周運動，進行受力分析，我們可以看到，小球做加速運動時，他所受到的力，并不是嚴格通過軌跡的圓心，在進行分析的時候，特別強調(diào)，小桶所受力的切線方向分力，和法線方向分力，切線方向分力，改變小球運動速度大小，法線方向分力，改變了小球運動的方向，法線方向的分力，在這里就是向心力，產(chǎn)生了向心加速度，通過這樣一個例子進行分析，同學們是比較容易理解的，
人教版高中語文必修2《家》教案3篇
（幻燈六）巴金作品《家》描寫的是“五四”之后，成都地區(qū)一個封建大家庭走向崩潰的故事。故事集中在1920年冬到1921年秋的八九個月時間里。成都的一個官僚地主家庭高公館，一家之主的高老太爺，封建專制，頑固不化。長房長孫覺新，為人厚道，卻很軟弱，原與梅表姐相愛，后屈從于老太爺之命而與李瑞玨結(jié)婚。后來梅和瑞玨雙雙慘死。覺新的胞弟覺民、覺慧積極參加愛國運動，從而和馮公館的馮樂山成了死對頭。覺民愛上琴，馮樂山卻要他娶自己的侄孫女，在覺民覺慧的反抗下，他們終于取得勝利。覺慧愛上聰明伶俐的婢女鳴鳳，但馮樂山卻指名要娶鳴鳳為妾，鳴鳳堅決不從，投湖自盡…至此，覺新有所覺醒，而覺慧則毅然脫離家庭，投身革命。（故事主要以高家三兄弟的愛情遭際為線索。）
高中歷史人教版必修一《馬克思主義的誕生》說課稿
一、教學理念在新課改精神指導下，我在本課教學中力求貫徹以下教學理念：新課標的指引觀 、生本位的學生觀、探究式的學習觀、多角色的教師觀、 發(fā)展性的評價觀二、教材地位《馬克思主義的誕生》是人教版必修一第五單元第18課內(nèi)容，本課講述的是國際共產(chǎn)主義運動范疇的歷史，是人類社會進入一個新的發(fā)展時期。從總體上概述了社會主義從空想到科學，從理論到實踐的歷程。說明了科學社會主義理論是歷史發(fā)展的必然結(jié)果。本課在國際工運史上占有重要的地位。通過學習學生可對馬克思主義加深了解，理解人類歷史發(fā)展的必然趨勢以及人類一直不斷追求進步的精神，幫助學生樹立正確的人生觀、價值觀，達到以史鑒今，服務現(xiàn)實的目的。
人教版高中語文必修3《杜甫詩三首》說課稿
我以以《登高》為例，引導學生進行意象分析，感悟意境美。古人云“立象以盡意”“古詩之妙，專求意象”意象是詩人情感的載體，是詩歌的靈魂。引導學生張開聯(lián)想和想象的翅膀去感受，去體驗是意象，詩歌鑒賞的關(guān)鍵?？屏治榈抡f“真正藝術(shù)的作品，不是看見的，也不是聽到的，而是想象中的某種東西。”詩人通過想象創(chuàng)造出詩的形象，我們讀者通過想象豐富地再現(xiàn)詩人創(chuàng)造的形象。而感受體驗則是以全部身心投入作品，心靈與心靈相溝通，感情與感情相交流，對詩人的想象活動進行再經(jīng)歷和再體驗。因此，在引導意象解讀中，我先讓學生點擊這一個，就是通過抓修飾詞、依據(jù)感情基調(diào)、展開想象具體分析本詩中每個意象的情感意蘊和審美意蘊，使學生明白意象在每首詩中的獨特性。
人教版高中語文必修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時的聲音了。生3：頸聯(lián)的意思是說事變發(fā)生那天軍隊發(fā)生嘩變停留不前，但當年唐玄宗以為自己可以和貴妃天天在一起，對天上的牽牛和織女一年一度的會見還加以嘲笑呢。生4：尾聯(lián)的含義是為什么唐玄宗當了四十五年的皇帝，還不如普通百姓夫妻恩愛，長相廝守。師：好的。請大家再齊讀一遍詩文，做到人人都能疏通詩的含義。學生再次齊讀。第三環(huán)節(jié)：專項探究師：白居易曾說：“文章合為時而著，歌詩合為事而作。”這首詩就是作者途經(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，就是通過標題和詩文，弄清詩中的歷史事件。請同學們找出詩中哪些詩句描述了這一事件？
人教版高中地理必修2煤城焦作出路何在說課稿
分析過焦作市的地理概況和產(chǎn)業(yè)優(yōu)勢后，就需要針對由于資源枯竭所帶來的問題提出合理化的建議。既然是談經(jīng)濟轉(zhuǎn)型，就應該將話題的范圍明確在這一領(lǐng)域內(nèi)。通過材料3的相關(guān)內(nèi)容，我們了解到焦作市需要在產(chǎn)業(yè)結(jié)構(gòu)調(diào)整、培育新的優(yōu)勢產(chǎn)業(yè)、增強綜合競爭力等三個整改方針上下功夫。因而引導學生針對優(yōu)勢與不足提出建議，以三個整改方針為基準，衡量建議的可行性是鍛煉學生解決此類問題的有效途徑。在此我將教會學生的是解決問題方法而非案例的內(nèi)容，正所謂“授之以魚，不如授之以漁”。接下來針對學生的建議和教材資料分析所羅列的10點整改思路，由學生自由發(fā)言提出看法，通過教師的指導和學生的討論，進而確定經(jīng)濟轉(zhuǎn)型建議的具體方案。最后注意將建議與產(chǎn)業(yè)優(yōu)勢相對照，看建議是否都是圍繞著產(chǎn)業(yè)優(yōu)勢而提出的，這樣做會加深學生的印象，通過建議和優(yōu)勢的對應關(guān)系，將不難找出此類問題的解題思路。
人教版高中生物必修2染色體變異說課稿
四、說教學程序（一）.溫故知新、導入新課復習提問:基因突變導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:對于一個生物體來說，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)量均會發(fā)生改變，從而導致生物性狀的改變，這就屬于染色體變異。（二）.把握重點、突破難點重點的把握：1、染色體結(jié)構(gòu)的變異播放影片:貓叫綜合征幼兒。讓學生觀察: 患兒哭聲輕、音調(diào)高，很像貓叫。教師補充: 患兒的征狀---兩眼較低、耳位低下，存在著嚴重的智力障礙。闡述病因---染色體片段缺失
