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人教版高中生物必修2伴性遗传说课稿
（1观察图解，色盲基因在性别间是如何传递的呢？（女--女、女--男、男--女）（2）为什么不能由男性传给男性？（色盲基因是在X染色体上，因此色盲基因是随X染色体的传递而传递。）（3）男性的色盲基因怎样才能传给男性呢？（通过女儿，传给外孙即交叉遗传）（4）从图解看色盲在男女中的发病情况怎样？（男性多于女性）（5）从社会调查也是这样，你是否能从基因和染色体的角度加以解释？（提示：女性染色体的构成，结合基因位置及显隐性进行分析）归纳特点：归纳出色盲基因遗传的特点并扩展到X染色体隐性遗传的特点上。色盲基因遗传（X隐性遗传）的特点：（1）男患者多于女患者（2）交叉遗传（3）女病儿子必病，男正女儿必正等。问题探讨：利用“遗传图解”结合“问题链”继续探讨，拓展到抗维生素D即X 染色体显性遗传的特点。（6）色盲基因在X染色体上属隐性基因，子代表现男多于女，对应的正常色觉基因则属于X显性基因，子代表现应如何？（女多于男）
人教版高中生物必修1细胞分化说课稿
在讲述细胞分化的意义时，也可以用实例来解决，工厂的生产车间里不同的工人干着不同的工作，一件产品的产出需要这些工人才能创造出来，一个生物体就像一个车间一样，不同的细胞各司其职，相互合作。工人的分工是主管调解出来的，而不同细胞的出现就是细胞分化的结果，所以说，细胞的分化是生物体发育的基础。在讲到细胞全能性的时候，要多给学生举些关于细胞全能性的例子，如植物组织培养、克隆技术等等，让学生从实际的例子中真正的悟出细胞全能性的含义。此外，还要重视教材中的疑问，适当对题目进行引申,使它的作用更加突出，有利于学生对知识的串联、积累、加工，从而达到举一反三的效果。怎样来解释细胞的全能性呢？这主要以讲授法来解释了，细胞全能性的体现需要在组织或器官离体后才能体现出来，每个细胞都包含着生物体的全套遗传基因，通过基因选择性的表达，使离体的组织或器官通过分裂和分化逐渐发育成完整的植株。
人教版高中生物必修2染色体变异说课稿
四、说教学程序（一）.温故知新、导入新课复习提问:基因突变导致生物变异的原因是什么?回答:基因突变是基因结构发生改变，从而使遗传信息改变，使蛋白质结构改变、生物性状改变，即生物发生了变异。那么，基因是什么?它和染色体又有何关系?回答:基因是有遗传效应的DNA片断，染色体是DNA的载体，基因在染色体上呈线形排列。引出新知:对于一个生物体来说，正常情况下，其染色体的结构和数量都是稳定的。但在自然条件或人为因素的影响下，染色体的结构和数量均会发生改变，从而导致生物性状的改变，这就属于染色体变异。（二）.把握重点、突破难点重点的把握：1、染色体结构的变异播放影片:猫叫综合征幼儿。让学生观察: 患儿哭声轻、音调高，很像猫叫。教师补充: 患儿的征状---两眼较低、耳位低下，存在着严重的智力障碍。阐述病因---染色体片段缺失
人教版高中英语必修1Journey Down the Mekong说课稿
2. let the Ss complete the forms paragraph by paragraph. Purpose here is to help Ss to get the habit of reading a passage as a whole, and pay attention to the organization of the text, as a result the Ss will fully understand the whole passage.3. ask Ss to retell the passage with the help of the key words in the form.Since the Ss in the class are in different levels, so I let them to fill in the blank to understand the meaning of the words and phrases better. ( That’s all for the while-reading. Now let’s move to the fifth step.)Step V: Post-reading (10mins) ---DiscussionIn this part students are asked to discuss in groups and list Wang Kun’s and Wang Wei’s attitudes about the trip. After that, Ss are encouraged to express their attitudes with the whole class. Collect their answers and don’t forget to praise them even if their answers may not be perfect.In this activity, discussion provides a vivid and active learning environment for Ss to communicate in English with newly learned language items. (Finally it comes to the homework.)StepⅥ: Homework (1min)1. Ss are required to read the text again after class and figure out the meaning of some complex sentences.2. Do the exercises on P19; This can help Ss to consolidate what they’ve learnt and make preparation for the next lessonPart4. Blackboard design.（说板书设计）On the top, there is the title of this lesson. On the left, there are main ideas for each paragraph. On the right, there are some new words and expressions.Unit 3 Travel journalJourney down the MekongMain idea of each para.:Para1: deciding to take a great bike trip along the Mekong river.Para2: Different attitudes between Wang kun and Wang wei.
人教版高中英语必修1Anne's best friend说课稿
Step 7 Language points 1．Vocabulary (1) go through (2) set down (3) a series of (4) on purpose (5) in order to (6)at dusk (7)entirely (8)face to face 2．Important sentences (1)…I’ve grown so crazy about everything to do with nature. (2)There was a time when … (3)I stayed awake on purpose until … (4)It was the first time … that I’d seen the night … (5)It’s no pleasure looking through … Purpose: 1．Master the required vocabulary and sentence structures. 2．Use them freely. Step 8 Consolidation 1．Find out the topic sentences 2．Retell the text according to the topic sentences Purpose: I want to know if my students understand the text. Step 9 Discussion Imagine you have to go into hiding like Anne and her family, what would you miss most? Giveyour reasons. Purpose: Train Ss’ oral English ability. Step 10 Homework Write an article on Friends. Purpose: 1． Improve the Ss’ writing ability. 2 Train the Ss’ ability of self—teaching and looking up information by themselves. Part 5 Blackboard design（说板书设计）Unit 1 Friendship Reading Anne’s Best Friend 1．Main idea of each paragraph: Para. 1 Anne made her diary her best friend. Para .2 Anne wrote her feelings in her diary. Para .3 Anne missed nature. Para.4 Anne saw the night face to face Para.5 Anne wanted to experience nature outdoors. 2．Listening: Exx.1 P3 3．Discussion: Exx.3 P3 Purpose: 1．Make Ss familiar with the passage 2．Make the design inductive, instructive and artistic.
人教版高中英语必修1English around the world说课稿
(3)v. 给：提出；展现，显现present sb. with sth. ; present sth. to sb. 把. . 交给；颁发；授予present sth. (for sth. )/present sth. to sb. e. g. Om his birthday, his friends presented him a collection of stamps. 在他生日时，他的朋友们送给他一套邮票作为礼物。The sword was presented by the family to the museum. 这家人把宝剑捐赠给了博物馆。The committee will present the final report to Parliament in June. 委员会将在六月向议会提交最后的报告。You need to present yourself better. 你需要更善于展现自己。It is essential that we present a united front. 至关重要的是我们要表现得更加团结。Step 4 ConsolidationT:Now that we have got a general idea of these words and phrases. Lets make up some sentences using them to master them. Suggested sentences:1. Your duties include typing letters and answering the telephone. 2. It is one of the greatest roles that she has played. 3. A large number of people have applied for the job. 4. The number of the panda is declining. 5. I'11 go there, even if I have to walk. 6. He came up to me to ask for a light. 7. The novel is about a family who can't communicate with each other. 8. He based his plan on interests of most people. 9. Why doesn't he make use of his singing talent?Step 5 Summary and homeworkT:Today we dealt with several new words and phrases. After class I hope that youcan read them again and again to keep them in mind. That's all for today. You aredismissed.
人教版高中英语必修2Computers说课稿3篇
一. 教材分析1. 本单元的中心话题是“计算机（Computers）”，内容涉及计算机的发展历史，计算机的应用等。本节课是该单元的第一课时，我将Warming up, Pre-reading and Comprehending这四部分整合为一节精读课。其中。Reading部分是题为WHO AM I？的文章，以第一人称的拟人手法介绍了计算机发长演变的历史和计算机在各个领域的应用，其主旨是表达计算机的发展变化之快以及在生活中用途之广。而Warming up部分以图片的形式展现了计算机的发展历程；Pre-reading中的问题和排序分别是为了预测语篇的内容和测试学生对计算机历史了解的情况；Comprehending则通过各项练习训练学生的阅读技能，从而加深对文章的理解。可见这几部分是一个有机的整体。2. 教学目标：1) 语言目标：重点词汇及短语：abacus, calculate, calculator, PC, laptop, PDA, robot, analytical, technological, universal, mathematical, artificial, intelligent, network, explore, in common, as a result.重点句子：a. My real father was Alan Turing, who in 1963 wrote a book to describe how computers could be made to work, and build a “universal machine” to solve any mathematical problem.
人教版高中英语必修2The Olympic Games说课稿2篇
Purpose of my design:To ask the students to do these two tasks will make the Ss predict the story of this passage. As a result, it will deepen Ss’ memory of this story because they will have their own understanding of this story.Step 3. While-readingTask 1. (Individual work _____min)Skimming: ask students to skim the text and the main ideas of each paragraph in this passage. Please read it quickly and then match the sentences with the letters.Task 2. (Individual work _____min)Scanning: read the text quickly and decide the whether the following statements are true or false and give reasons.Task 3. (Pair work _____min)Listen to the tape and fill in the banks. Then read the paragraph with expression to your partner.Task4 (individual work min)Listen to the tape again and write down the main idea in one sentence.Purpose of my design: Enable students to understand the given material better by using different reading skills. And proper competition can arouse the Ss’ interest in English learning. “Task-based” teaching method is used here todevelop the Ss’ ability of communication and also their ability of co-operation will be well trainedStep 4. Post-readingTask 1. (Individual work, pair work, group work, class work; _____min)Discussion (group of 4):1. If you were Hippomenes, would you run against Atlanta?2. Do you think Hippomenes deserved to win the race? Why or why not?Step 5. HomeworkPlease read the story again carefully after class and imagine: What will happen during the race between Hippomenes and Atlanta? Who do you think will win the race? Do you think Atlanta would marry Hippomenes? Write an end for the story with thses questions.Purpose of my design: Homework is so important and necessary for to master the knowledge they learned after class. It will check whether the Ss achieve the teaching aims.Part 5 Blackboard design
人教版高中英语必修3Astronomy the science of the stars说课稿3篇
Step 2 Pre-listeningAfter students finish their discussion, I will show a picture of Newton and ask them: Who is him? What is he famous for? Could you find out some words to describe him? Maybe students will answer that he is genius for his finding of theGravitation, making a great contribution to the progress of human being. At that time I will show another two pictures of Einstein and Hawking, letting students guess who they are and write down their idea about the Gravitation. For I have arranged them to search more information about the gravity before this class, Students have beenfamiliar with the topic and will not be afraid about this abstract conception, which is helpful for their listening.Step 3 While-listeningIn this step, students will be required to listen the material for three times. The first and listening is extensive listening and the second and third listening is intensive listening. In the first time, They are required to listen a material including Part 1 and Part 2 and choose the best summary of the listening text. After they choose the right answer, They also need work in group to explain what is wrong with the others. Then I will make a conclusion that we should pay attention to the first paragraph and last paragraph and some keys to get the main idea. By doing this, their capacity of generalization will have a great improvement.Before the second listening, I will ask students to scan the blank on the power point quickly and ask them to note down some key words .Then ask them to listen to the Part 1again and fill the first column of the chart. Maybe some students just show the ideas of these three scientists an still can’t catch their development of gravity. Therefore, I will ask them to listen to Part 2 again and fill in the rest. After finish the listening, I will give them ten minutes to discuss with their partner. I will also guidethem to improve their answers when they discuss with others.
人教版高中英语必修2Wildlife Protection说课稿3篇
When it comes to the students’ studying methods, I'd like to introduce my Ss first. The Ss have a good command of basic language points. They’re interested in learning English, and they take an active part in English class, so they will have fun in autonomous, cooperative and inquiry learning. I will just serve as a guide, showing them the way to explore how to make more progress in their English learning.Now it’s time for the most important stage of this lesson. My teaching procedures are arranged as follows:Step1.Leading-in (3 minute)Play a video of a wide variety of wildlife to introduce my topic. Step2. Speaking (12 minutes)We will use our textbook Page25. Let the Ss fast read the short paragraph to warm up. Ask them to talk about the report on some endangered wildlife in China with the dialogue patterns on the screen. Lastly, I will invite some groups to demonstrate their dialogues about saving wildlife in China.Step3.English play (3 minutes)Watch another video in praise of their excellent performance just now. It’s about Jack Chen’s（成龙）and Yang Ziqiong’s wildlife protection.Step4. Listening (twice 13 minutes)This time, I’ll ask the Ss to fill in the blanks of the monologue of the 2 movie stars above. Step5.Discussion (3 minutes)Which would you like to choose to wear, clothes made of cotton, artificial leather or animal skins? Why ?Step6. Summary (3 minutes)1. If there were no wildlife, there wouldn’t exist human beings. If the buying stops, the killing can, too.2. Animals are our friends. To love animals is to love ourselves. Stop hunting, killing and destroying wildlife.3. Let’s live in harmony with all the living things in the world. Step7. Music appreciation (3 minutes)Let the Ss appreciate the song Earth Song by Michael Jackson. Last but not the least, I will show you my blackboard design.
人教版高中英语必修3Festivals around the World说课稿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:
人教版高中英语必修5First aid说课稿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:
人教版高中英语必修5Life in the Future说课稿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.
人教版高中语文必修1《再别康桥》说课稿2篇
一、教材分析1、教学对象分析《再别康桥》的教学对象是高一学生，高一学生往往对那种纯粹的、原始的、本真的情感体会较为肤浅，《再别康桥》是新月派诗人徐志摩的传世之作，有极高美学价值，它所抒发的离愁别绪是人类共同的情感经历，通过诵读容易将学生带人诗境，唤醒他们沉寂的真情，从而引起强烈的共鸣。 2、教材地位及作用 高中语文第一册第一单元为诗歌单元，本单元收录了中国现当代的一些优秀诗篇。《再别康桥》安排在本单元的第二课，属于必读课。虽然本诗向来众说纷纭，但其艺术之美人所共知，培养学生高尚的审美情趣和良好的审美创造力是语文学科的任务，因此，从语言赏析入手，从情感体验切入，就可以让学生通过学习本课体会现代诗歌的特点，多方面感受体悟诗歌的情感，受到美的熏陶。
人教版高中语文必修2《氓》说课稿3篇
四、教学方法和学法。课前学生搜集有关《诗经》的资料必不可少。另外，时隔数千年，年代久远，文字的障碍很大，然而，过分纠缠于文字的疏通会破坏诗歌的“气”，丧失诗歌的“神”，所以在学习时，应舍去条分缕析的理论评价，指导学生结合注释疏通文字，然后引领他们经由文字再现形象和事件，经由形象和事件领略情感，感受其中浓浓的诗情。诵读的环节是重要的，配以二胡独奏《长相思》，营造意境，学生沉浸在音乐营造的意境中反复吟咏，读出节奏，读出音调，读出感情，细细体味，让或优或喜的情愫萦绕心间，我们就触到了先民的灵魂。比兴手法为《诗经》独创，重章叠句同样别致而新鲜，教学过程中结合具体语境让学生自己去发现并进行讨论，不搞枯燥的知识传授。还引入讲故事、改写两种活泼的学习形式，从而达到加深理解的目的。
人教版高中语文必修2《涉江采芙蓉》说课稿2篇
一、说教材1．教材分析《涉江采芙蓉》是新人教版必修二第二单元《古诗三首》中的一首。《古诗十九首》在中国古代诗歌的艺术手法上起着承前启后的作用，在高中语文古诗教学中也起着承前启后的作用。这首古体诗不论是艺术上，还是在思想上都已经达到了十分纯熟的境界。因此，它十分重要。2.说学情这首诗歌在内容上难度不大，可以做多角度解读。新课程标准鼓励学生作个性化解读，我们可以引导学生就此作些探讨。学生通过小学、初中的系统学习和本册古诗部分的集中学习，有了一定的古诗鉴赏能力，对源远流长的中华文化也有了一些积淀，兴趣渐浓，这是进一步引导学生热爱古代诗歌、学习古代诗歌的一个前提。3.教学目标依据学生特点，教材特色以及新课标的要求，制定教学目标如下：（用多媒体展示）1、了解关于《古诗十九首》的文学常识;2、感受诗歌的思想内涵;3、运用想象描摹诗歌的艺术画面。
人教版高中语文必修1《雨巷》说课稿3篇
一.教材理解教材地位与作用：本单元“阅读与鉴赏”部分，本单元要求学生能在了解诗歌创作的时代背景的情况下通过反复诵读诗歌，把握其中丰富的意象，领悟诗歌独特的意境和诗人所要表达的情感。《雨巷》是现代派大师戴望舒的成名作和前期的代表作,他曾因此而赢得了“雨巷诗人”的雅号。本单元以《雨巷》为例子给学生展示了象征主义诗歌的特点，《雨巷》运用了象征性的抒情手法。诗中那狭窄阴沉的雨巷，在雨巷中徘徊的独行者，以及那个像丁香一样结着愁怨的姑娘，都是象征性的意象。这些意象又共同构成了一种象征性的意境，含蓄地暗示出作者即迷惘感伤又有期待的情怀，并给人一种朦胧而又幽深的美感。富于音乐性是《雨巷》的另一个突出的艺术特色。诗中运用了复沓、叠句、重唱等手法，造成了回环往复的旋律和宛转悦耳的乐感。因此我把本课的教学重点和难点确定为：教学重点：通过反复诵读，领略诗歌的音乐美以及分析其成因教学难点：分析意象以及其象征意义初步掌握鉴赏诗歌的方法
人教版高中语文必修3《动物游戏之谜》说课稿2篇
一、导入新课人类社会越来越现代化，新科学技术日新月异，令人目不暇接，称之到了“知识爆炸”的时代也毫不为过。由此而来的是生活的快节奏，学习和工作的竞争也越来越激烈。这种竞争一直波及到了儿童，加之中国几千年来形成的望子成龙的传统观念，使作父母的把一切希望都寄托在孩子身上，实现自己未能实现的理想。祖孙三代4、2、1的局面，使12只眼睛都盯在了孩子身上，真是走路怕摔着，吃饭怕噎着，干活怕累着，要星星不敢摘月亮，要吃什么跑遍全城也要买来。这种过分保护、溺爱及过早地灌输知识会得到什么结果呢？乐观者说孩子越来越聪明，越来越早熟，将来能更好适应现代化的要求；悲观者则认为豆芽菜式的孩子将来经不起风浪，小皇帝太多了很难凝聚成统一力量，将来谁去当兵，谁去干那些艰苦创业性工作……。对孩子本身来说，是幸福还是……在此不想多发议论，还是让我们来看看动物世界的孩子们吧，也许会得到某种启迪。
人教版高中语文必修3《过秦论》说课稿3篇
本文篇幅较长，并且有一字句不易理解，因而对高一学生来说完全读懂内容有一些困难。这样的话，老师就要做好引导工作，把一些难点，或是出现词类活用比较多，局势比较特殊的句子，老师可以先给学生画出来，存疑，或是与同学们一起讨论解决。对那些不易懂的字词就引导学生联系上下文提供的语境、前后涉及的情节加以推测、判断，以培养学生依据文脉推断词义的好方法。要求学生点出重点实词、框出通假字，主要是为帮助学生积累和掌握一些文言文中常见的一词多义、异读现象、古今异义和通假现象的词语，并进一步得出规律，指导今后的文言文学习。词类活用和特殊句式在文言文翻译中难度较大，也是本文教学的两大难点。要求学生标出有活用现象的字和划出句式特殊的句子，是基于两点考虑：1、积累一定数量的第一手例句；2、引导学生加以分类，找出每类的相同特征，并抽取出来形成规律性的东西，从而上升到理性认识，使学生能由学会一个到会学多个。翻译过程中注重指导学生养成用符号法表示重点字句的好习惯，如点、框、圈、划线等符号应约定一致，便于突出翻译中的重点、难点及复习。我的提示着重归纳了实词“制”“亡”“遗”“利”等，名词活用、形容词活用、使动用法，被动句、状语后置句。
人教版高中语文必修3《蜀道难》说课稿2篇
（1）“问君西游何时还……使人听此凋朱颜。”诗题下未注明送何人入蜀，所以这里的“问君”无妨假定实有其人，可以读得亲切一些。将行而问“何时还”，已有不可行之意，重音要落在“不可攀”三字上，当用劝说的语气读。以下四句借鸟声渲染旅途中悲凉凄清的氛围，读时要放低声调，有干里孤身之感，至“愁空山”徐徐而上。然后用感喟的语调读主旨句，至“凋朱颜”略作一顿，以示意犹未尽。（2）“连峰去天不盈尺……胡为乎来哉！”仍是说不可行，但内容加深了一层，因为说的是蜀道的险恶。前四句不是纯客观的描写，读时须设想这是旅游者攀援于“连峰”“绝壁”之上置身于“飞湍瀑流”之间，要使听者感到惊心动魄。读后可作稍长停顿，再用“其险也如此”缓缓收住。末句是诗人借用蜀人的口气，对历险而来的游者深表叹息——“胡为乎来哉”不是询问，当用降调读，暗含“何苦而来”之意。
