(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.
In this step, give students a few minutes to read the passage . While they are reading, I will write some key words of the text on the blackboard. Then ask students to retell the passage according to the key words.By retelling, students can improve their ability of language organization and have an overall understanding of the article.Step 4 Group discussionIn this step, students will be divided into groups of 4 to discussion the following question: What qualities make a great person?After their discussion, invite a few groups to make a report to the class.This group discussion can practice students’ oral English and cultivate their abilities of cooperation and communication.Step 5. HomeworkLet students write a short passage to introduce a great person he or she admires.The homework can consolidate the knowledge the students have learned and cultivate their writing ability. Part 6 Blackboard Design(板书设计)That’s all my teaching procedures. Finally, I’d like to say sth about part 6 blackboard design. On the top is the title. On the left, there will be some new words and expressions. In the middle of the blackboard, I will write some useful sentence structures so that the students can know clearly what they’ve learned and then try to master the knowledge.OK. That’s all for my presentation. Thank you for your attention.
Ⅲ. Analysis of the teaching material:The topic of this unit is cultural relics. Students are quite interested in topics about different cultures around the world. This is the second period of the whole unit. As a reading class, the passage mainly talks about the history of the amber room (how it was made, sent as a gift, lost and rebuilt).According to the new national curriculum, when teaching reading, much emphasis should be put on training the students’ reading skills.Ⅳ. Teaching objectives1. Language objectives:1) Students are required to master the key words and phrases occurred in the passage (e.g. amazing, decorate, belong, in return, less than etc.)2) Students are required to learn the attributive clause and acquire the sentence pattern.2. 1) Students are required to describe a certain thing by using the new sentence patterns.2) Students are required to master two kinds of reading skills—skimming and scanning, and learn to use them in their daily reading.3. 1) Students are required to know the history of the amber room.2) Students are required to appreciate cultural relics and understand the importance of protecting them.Ⅴ. Teaching important and difficult points1) the new words, phrases, and sentence pattern in the course of reading.2) Teaching difficult point: Help the students master two kinds of reading skills—skimmingand scanning and learn to apply them in daily use.Ⅵ. Teaching methods:Task-based method & Top-down model Ⅶ. Teaching aids: PPT, pictures, blackboard Ⅷ. Teaching procedure:
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
Good morning, distinguished judges:It’s my honor to talk about my teaching ideas with you. Today my topic is Women of Achievement. My presentation consists of six parts: the analysis of teaching material and student, teaching aims, key and difficult points, teaching and studying method, teaching procedures and blackboard design.First, let’s focus on the analysis of teaching material. This lesson is from New Senior English for China Student’s Book 4 Unit 1, the reading part. The main topic of the passage is the introduction of a student of Africanwildlife. After this lesson, the students will learn more information about her studying chimps in Africa, and their reading and speaking abilities can be developed as well.The next part is the analysis of students. My students are in senior high students. They have learnt English for many years, they’ve known many words and sentences, but their speaking and reading abilities are still not very good. So I will practice their speaking and reading abilities through different exercises.According to the New Standard Curriculum and the present situation, I set the teaching aims as follows: firstly, knowledge aims. Students can grasp some new words, such as worthwhile, move off. Moreover, students can understand the content of the passage and get familiar with the topic of studying chimps in wildlife. Secondly, ability aims. Students can use reading strategies such as skimming and scanning in reading process. Thirdly, emotional aims. Students can have the awareness of protecting animals and care about animals.Based on the above analysis, the key point of this lesson is to get the main idea and the detailed information from the passage; the difficult point is to talk about the wildlife protection and use reading strategies.
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:
通过写文章梗概,培养学生综合运用语言的能力,学习用恰当的英语描述科学家的故事。这是本课的教学难点。教师可以使用完形填空的方式来帮助学生整理语篇,从而来降低难度。本课的教学重点的突破方法是:在阅读前,让学生初步了解得出科学观点所需要的基本程序,从而轻松而自然地导入文章的阅读;在阅读过程中,由易到难设计快速阅读和精读的问题,层层推进各种阅读活动,让学生对阅读内容从整体感知到细节理解,最后深层读懂整篇文章,同时加强阅读策略的指导,让每个学生都主动参与课堂教学活动,最终达到提高阅读能力的目的。Step 4 Post-readingGroup Activities四人小组共同合作,在老师的适当指导下,就以下2个问题展开讨论,让学生就所知、所学、所感和所想融入话题,然后抽若干同学代表作小组发言。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?
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.
今天我们来介绍一下必修五第四单元的授课方式。这个单元的题目是Making the news。应该是学生比较感兴趣的话题,学生往往对新闻工作充满好奇,所以我们可以利用这个机会多设计一些师生互动和学生互动,来激发起学习的积极性,提高学习效率。同时我们可以利用这个单元不仅帮助学生掌握语言知识,培养语言能力,同时让其了解新闻工作的重要性,培养起社会智能感。这个单元分为六个课时,它的教学目标是这样的:语言目标是掌握词汇表中的常用单词和短语,掌握倒装句的一些基本用法。 技能目标是能初步掌握约会的基本句型并在真实的场景下正确运用。新闻报道类文章的写作技能。采访的基本规范和沟通技能。情感目标是对新闻报道的客观性和真实性有更好的理解。对新闻记者的职业有更深入的了解,并能体会其工作的重要性。下面我们来介绍一下第一课时的授课方式,第一课的教学目标是这样的第一课时的教学目标语言目标:单词:Occupation, journalist, editor, photographer, curious, personality, enthusiasm
Teaching Aims:Knowledge 1. Get the students to learn the useful new words and expressions in this section. Aims:2. Let the students learn about how the UK was formed and the four groups of invaders.1. Develop students’ reading ability and let them learn different Ability reading skills. Aims:2. Enable students to learn to talk about the United Kingdom and the Union Jack Emotional 1. Let students know more about the UK2. Develop students’ sense of cooperative learning Aims:Teaching Important Points:1. Let the students learn about the countries of the United Kingdom and the Union Jack2. Get the students to read the passage and know about how the UK was formed and the four groups of invaders.3. Have the students learn different reading skills.Teaching Difficult Ponts:1. Develop students’ reading ability.2. Enable students to talk about the United Kingdom and the Union Jack.3. Let students learn how the UK was formed geographically and historically.Teaching Methods:Showing pictures, asking, exercising, listening, reading etc.Teaching Aids:A computer,a projector and a blackboard.Teaching Procedures: 1) Show a map of the world, ask students the following questions:Where is the UK?What’s the full name of the UK?2) Ask the students work in pairs to do the quiz on Page 9.Do you want to test how many things you know about the United Kingdom? Let’s have a small test.Using the map on P9, students answer the following questions:?How many countries does the UK consist of? What are they??England is divided into three main areas. Do you know what they are? 1) Scanning (10Minutes )Let the students hold the questions asked in pre-reading and read the passagequickly and then let them do the following exercise.Join lines to the right answer.
各小组派代表汇报。4、教师提出问题组织学生讨论:⑴要想了解更多的绿色食品,了解绿色食品的销售情况,我们应该怎么做?⑵要想了解广大消费者对绿色食品的态度,食用绿色食品的意义,是否懂得辨认绿色食品,以及什么样的人群对此知识最缺乏等,我们应该怎么做?组织学生汇报交流。5、做个“绿色食品”广告设计师。为你喜欢的绿色食品设计广告语,每组推荐一个。6、让学生了解绿色食品认证程序。7、绿色食品打“假”队员在行动。8、向学生介绍生态绿色食品基地。三、活动总结:通过研究、探讨,了解学生对绿色食品的态度。提问:民以食为天,吃,是一个大问题,如果你的爸爸妈妈让你到超市买牛奶、方便面等,你会选择什么样的食品?为什么?希望通过今天的学习,同学们能够做到绿色消费,也希望你们向自己的家人、向周围的了解学生对“无公害食品”、“有机食品”与“绿色食品”的认识。
分析过焦作市的地理概况和产业优势后,就需要针对由于资源枯竭所带来的问题提出合理化的建议。既然是谈经济转型,就应该将话题的范围明确在这一领域内。通过材料3的相关内容,我们了解到焦作市需要在产业结构调整、培育新的优势产业、增强综合竞争力等三个整改方针上下功夫。因而引导学生针对优势与不足提出建议,以三个整改方针为基准,衡量建议的可行性是锻炼学生解决此类问题的有效途径。在此我将教会学生的是解决问题方法而非案例的内容,正所谓“授之以鱼,不如授之以渔”。接下来针对学生的建议和教材资料分析所罗列的10点整改思路,由学生自由发言提出看法,通过教师的指导和学生的讨论,进而确定经济转型建议的具体方案。最后注意将建议与产业优势相对照,看建议是否都是围绕着产业优势而提出的,这样做会加深学生的印象,通过建议和优势的对应关系,将不难找出此类问题的解题思路。
本节课是人教社物理必修1第三章第三节的内容,编排在弹力之后。该节知识既是力学的基础,也是组成整个高中物理知识的一块“基石”,所以这节内容的教学如何引领学生自主积极地探究摩擦力产生的条件和影响因素,体验摩擦力特点规律的发生过程是本节课的重点,应高度重视本节教学过程;由于摩擦力问题的复杂性,且在具体问题中又表现出“动中有静,静中有动”,尤其静摩擦在许多情形下似乎又是“若有若无,方向不定”,因此,对于初学者也是有一定难度的。也正是由于教材内容的上述特点,本节课又易于激起学生的求知欲,易于培养学生的辩证观点,易于锤炼学生的物理素质。要充分用好该节教材内容,深入挖掘知识间的有机联系,对学生开展针对性的思维训练,进而提高学生应用物理知识解决实际问题的能力和创新思维能力。高中物理《课标》对该知识点的要求是,“通过实验认识滑动摩擦、静摩擦的规律,能用动摩擦因数计算摩擦力”。其中,对静摩擦力规律的认识应该包括最大静摩擦力。
(一)、复习提问1、请说出功的计算公式及功的单位2、我们用哪个物理量表示物体运动的快慢?(二)、创设情景,引入新课1、播放多媒体素材,用起重机和一个工人搬运几百块砖比较哪一种方法好?图中的情景说明了什么问题?(教师通过所设计的情景,将学生引入怎样比较做功快慢,让学生发表自己的看法,初步知道物体做功是有快慢之分的。)(三)、进行新课1、比较做功快慢的方法播放多媒体素材并提出问题:怎样比较两个人谁做功快谁做功慢?教师启发:以前学习过要比较两物体运动的快慢,可以先确定路程再比较时间,也可以先确定时间再比较路程。在路程和时间都不同时,通过计算速度比较两物体运动的快慢。同理,要比较物体做功的快慢可采用什么方法?
探究一:高中阶段功的含义是什么?投影:初中九年级《物理》105页学生思考:①图中物体的势能、动能分别如何变化?②物体能量的变化和做功是否存在关系?学生:分组讨论,得出结论:如果物体的能量发生变化时,说明有力对物体做了功。教师:进行点评和小结(设计意图:对初中知识深化理论认识,并为以后功能关系的教学作准备)探究二:力对物体做功的两个要素是什么?情景再现:找体重相对悬殊的两位同学,①A同学试图抱起B同学,但没成功。②B同学抱起A同学在教室内匀速走动。学生思考:在①中,A是否对B做功?在②中,B是否对A做功?学生:分析得出做功的两要素:物体受到力的作用,并且在力的方向上发生位移.教师:让学生分别例举生活中力对物体做功和不做功的例子,(设计意图:让学生亲身参与课堂实验,烘托课堂气氛,相互协作增进同学情谊)探究三:如果物体的位移不再力的方向上,那么力是否还对物体做功?
1.圆柱、圆锥、圆台的表面积与多面体的表面积一样,圆柱、圆锥、圆台的表面积也是围成它的各个面的面积和。利用圆柱、圆锥、圆台的展开图如图,可以得到它们的表面积公式:2.思考1:圆柱、圆锥、圆台的表面积之间有什么关系?你能用圆柱、圆锥、圆台的结构特征来解释这种关系吗?3.练习一圆柱的一个底面积是S,侧面展开图是一个正方体,那么这个圆柱的侧面积是( )A 4πS B 2πS C πS D 4.练习二:如图所示,在边长为4的正三角形ABC中,E,F分别是AB,AC的中点,D为BC的中点,H,G分别是BD,CD的中点,若将正三角形ABC绕AD旋转180°,求阴影部分形成的几何体的表面积.5. 圆柱、圆锥、圆台的体积对于柱体、锥体、台体的体积公式的认识(1)等底、等高的两个柱体的体积相同.(2)等底、等高的圆锥和圆柱的体积之间的关系可以通过实验得出,等底、等高的圆柱的体积是圆锥的体积的3倍.
培养学生合作交流意识和探究问题的能力,这一部分知识层层递进,符合学生由特殊到一般、由简单到复杂的认知规律。4、互动探究(1)极限思想的渗透让学生阅读“思考与讨论”小版块.培养学生的自学和阅读能力提出下列问题,进行分组讨论:a、用课本上的方法估算位移,其结果比实际位移大还是小?为什么?b、为了提高估算的精确度,时间间隔小些好还是大些好?为什么?针对学生回答的多种可能性加以评价和进一步指导。让学生从讨论的结果中归纳得出:△t越小,对位移的估算就越精确。渗透极限的思想。通过小组内分工合作,讨论交流,培养学生交流合作的精神,以及搜集信息、处理信息的能力;通过小组间对比总结,使学生学会在对比中发现问题,在解决问题过程中提高个人能力;
设计意图:几道例题及练习题,其中例1小车由静止启动开始行驶,以加速度 做匀加速运动,求2s后的速度大小?进而变式到:小车遇到红灯刹车……,充分体现了“从生活到物理,从物理到社会”的物理教学理念;例题及练习题由浅入深、由易到难、各有侧重,体现新课标提出的让不同的学生在物理上得到不同发展的教学理念。这一环节总的设计意图是反馈教学,内化知识。(6) 小结归纳,拓展深化我的理解是,小结归纳不应该仅仅是知识的简单罗列,而应该是优化认知结构,完善知识体系的一种有效手段,为充分发挥学生的主题作用,从学习的知识、方法、体验是那个方面进行归纳,我设计了这么三个问题:① 通过本节课的学习,你学会了哪些知识;② 通过本节课的学习,你最大的体验是什么;③ 通过本节课的学习,你掌握了哪些学习物理的方法?
4.已知△ABC三个顶点坐标A(-1,3),B(-3,0),C(1,2),求△ABC的面积S.【解析】由直线方程的两点式得直线BC的方程为 = ,即x-2y+3=0,由两点间距离公式得|BC|= ,点A到BC的距离为d,即为BC边上的高,d= ,所以S= |BC|·d= ×2 × =4,即△ABC的面积为4.5.已知直线l经过点P(0,2),且A(1,1),B(-3,1)两点到直线l的距离相等,求直线l的方程.解:(方法一)∵点A(1,1)与B(-3,1)到y轴的距离不相等,∴直线l的斜率存在,设为k.又直线l在y轴上的截距为2,则直线l的方程为y=kx+2,即kx-y+2=0.由点A(1,1)与B(-3,1)到直线l的距离相等,∴直线l的方程是y=2或x-y+2=0.得("|" k"-" 1+2"|" )/√(k^2+1)=("|-" 3k"-" 1+2"|" )/√(k^2+1),解得k=0或k=1.(方法二)当直线l过线段AB的中点时,A,B两点到直线l的距离相等.∵AB的中点是(-1,1),又直线l过点P(0,2),∴直线l的方程是x-y+2=0.当直线l∥AB时,A,B两点到直线l的距离相等.∵直线AB的斜率为0,∴直线l的斜率为0,∴直线l的方程为y=2.综上所述,满足条件的直线l的方程是x-y+2=0或y=2.
一、情境导学在一条笔直的公路同侧有两个大型小区,现在计划在公路上某处建一个公交站点C,以方便居住在两个小区住户的出行.如何选址能使站点到两个小区的距离之和最小?二、探究新知问题1.在数轴上已知两点A、B,如何求A、B两点间的距离?提示:|AB|=|xA-xB|.问题2:在平面直角坐标系中能否利用数轴上两点间的距离求出任意两点间距离?探究.当x1≠x2,y1≠y2时,|P1P2|=?请简单说明理由.提示:可以,构造直角三角形利用勾股定理求解.答案:如图,在Rt △P1QP2中,|P1P2|2=|P1Q|2+|QP2|2,所以|P1P2|=?x2-x1?2+?y2-y1?2.即两点P1(x1,y1),P2(x2,y2)间的距离|P1P2|=?x2-x1?2+?y2-y1?2.你还能用其它方法证明这个公式吗?2.两点间距离公式的理解(1)此公式与两点的先后顺序无关,也就是说公式也可写成|P1P2|=?x2-x1?2+?y2-y1?2.(2)当直线P1P2平行于x轴时,|P1P2|=|x2-x1|.当直线P1P2平行于y轴时,|P1P2|=|y2-y1|.
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