教師:不同的時代造就了不同風格和不同精神內(nèi)容的詩詞,請同學們回顧必修一和必修二兩宋中央集權(quán)的加強和經(jīng)濟的發(fā)展狀況。學生:回憶回答。教師:請同學們結(jié)合時代背景和詞的特點理解詞為什么能夠成為宋代文學的主流形式和標志?學生:兩宋時經(jīng)濟重心轉(zhuǎn)移到了南方,商業(yè)發(fā)展打破了時間和空間的限制,城市繁榮,市民數(shù)量不斷增加。詞的句子長短不齊,便于抒發(fā)感情,并且能夠歌唱,更能適應市井生活的需要。于是,詞成為宋代文學的主流形式和標志。教師:宋代文人地位提高,宋詞就是一個個時代的畫卷:大宋的悲歡離合都寫在了里面。除了詞之外,宋代民間還興起了一種新的詩歌形式,即散曲。學生:回答散曲的發(fā)展階段及特點、元曲的含義、特點。教師:在中國古代詩歌輝煌發(fā)展的同時,也產(chǎn)生了供人們閑來無事消遣的小說。
(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行分析)歸納特點:歸納出色盲基因遺傳的特點并擴展到X染色體隱性遺傳的特點上。色盲基因遺傳(X隱性遺傳)的特點:(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。(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,對應的正常色覺基因則屬于X顯性基因,子代表現(xiàn)應如何?(女多于男)
三、孟德爾遺傳規(guī)律的現(xiàn)代解釋①分離定律:在雜合體的細胞中,位于一對同源染色體上的等位基因,具有一定的獨立性;在減數(shù)分裂形成配子的過程中,等位基因隨同源染色體的分開而分離,獨立地隨配子遺傳給后代。②自由組合定律:位于非同源染色體上的非等位基因的分離或組合是互不干擾的;在減數(shù)分裂過程中,同源染色體的等位基因彼此分離的同時,非同源染色體上的非等位基因自由組合??偨Y(jié):再次強調(diào)孟德爾遺傳定律的現(xiàn)代解釋課堂練習:書本31頁6、教學反思:本節(jié)課設置了一系列問題情境,層層設問,在學生答問、質(zhì)疑、討論過程中讓學生建構(gòu)新概念和新的知識體系,并通過教師及時掌握反饋信息,適時點撥、調(diào)節(jié),讓學生在推理判斷中培養(yǎng)良好的思維習慣和對知識的遷移能力,而且通過留出一定的時間讓學生提問,體現(xiàn)了以學生為主體的思想。
設問:DNA復制后兩個子代DNA分子與親代DNA分子是否完全相同?為什么?通過設問,讓學生進一步理解和鞏固DNA復制的全過程。接下來讓學生總結(jié)出DNA復制的四大基本條件: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復制的意義以及在生活中的應用:意義:DNA通過復制,使遺傳信息從親代傳給子代,從而保證了物種的相對穩(wěn)定性,保持了遺傳信息的連續(xù)性,使物種得以延續(xù)。應用:目前DNA分子廣泛應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)場留下的毛發(fā)、血等進行分析作為破案的證據(jù),與DNA有關。五、設計課堂練習:設計一題典型課堂練習:即有關半保留復制及計算的習題:
3、遺傳密碼的特點 連續(xù)性、簡并性、通用性5、課堂練習6、作業(yè)布置假如,我們利用(ACU)n核苷酸長鏈合成了含有蘇氨酸的多肽,那么蘇氨酸可能的密碼子有哪些?如何運用實驗方法確證蘇氨酸的密碼子究竟是什么?七、教學反思1、教材中豐富的科學史料,是我們在課堂上進行探究性學習活動的良好素材,教師要整理和運用好。千萬不要低估學生的思維能力,當學生的思維能力被你想方設法激發(fā)出來的時候,你會發(fā)現(xiàn)他們的創(chuàng)造力是無窮的。2、探究性學習的目的并不僅僅是問題的解決,更重要的是在探究過程中體驗和獲取科學研究方法,培養(yǎng)合作與分享的精神以及實事求是的科學態(tài)度,鍛煉思維能力,提高科學素養(yǎng)。3、學生是學習的主體,教師是引導者。我們要采取措施讓學生積極主動地參與到學習活動中來,通過他們的思考、討論、爭辯、合作等活動來獲取方法,建構(gòu)知識。
環(huán)節(jié)三 案例分析 突破難點我將用多媒體展示兩組反映中學生參與民主管理的一些作法的圖片,和教材26-27頁的三個鏡頭,然后請同學們根據(jù)圖片和材料探究以下問題: 1. 聯(lián)系自身實際談談這些做法對我們有何啟示? 2.實行農(nóng)村村民自治和城市居民自治有什么意義呢? 3. 我們在實際生活中應怎么做?這樣,通過圖片和材料的展示,點明了公民參與民主管理的意義,以此來誘發(fā)學生已有的真切體驗,感受其境,增強學生共創(chuàng)想和文明社區(qū)的積極性和情感。同時,我們也希望學生在學習本課的知識后,又能做到學以致用,把所學的知識真正用到社區(qū)管理中,為所在社區(qū)管理提合理建議,從而真正實現(xiàn)了知識從生活中來,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)課的知識框架,并注重引導學生將今天所學新知識與前面知識聯(lián)系起來,幫助學生從宏觀上把握各知識點之間的關系,有利于學生理解記憶,以此來幫助教師在第一時間掌握學生學習信息的反饋,同時培養(yǎng)學生歸納分析能力、概括能力。
環(huán)節(jié)四 課堂小結(jié) 鞏固知識本節(jié)課我采用線索性的板書,整個知識結(jié)構(gòu)一目了然,為了充分發(fā)揮學生在課堂的主體地位,我將課堂小結(jié)交由學生完成,請學生根據(jù)課堂學習的內(nèi)容,結(jié)合我的板書設計來進行小結(jié),以此來幫助教師在第一時間掌握學生學習信息的反饋,同時培養(yǎng)學生歸納分析能力、概括能力。環(huán)節(jié)五 情景回歸,情感升華我的實習指導老師告訴過我們,政治這一門學科要從生活中來到生活去,所以在課堂的最后讓學生考察自己所在社區(qū)存在的問題,然后制定監(jiān)督方案,以此培養(yǎng)學生對理論的實際運用能力,同時檢驗他們對知識的真正掌握情況,以此達到情感的升華,本節(jié)課,我根據(jù)建構(gòu)主義理論,強調(diào)學生是學習的中心,學生是知識意義的主動建構(gòu)者,是信息加工的主體,要強調(diào)學生在課堂中的參與性、以及探究性,不僅讓他們懂得知識,更讓他們相信知識,并且將知識融入到實踐當中去,最終達到知、情、意、行的統(tǒng)一。
1.必須明確政治生活的作用 (政治生活與經(jīng)濟生活、文化生活是相輔相成的。政治生活直接影響到人民民主的實現(xiàn)程度,影響全體人民利益,也會影響我們的經(jīng)濟生活、文化生活。)2.需要學習政治知識 (5個有助于)3.需要參加政治實踐活動。 (參加政治實踐的途徑;參加政治實踐的意義)(通過情景問題,形成學生如何參與政治生活的方法;通過解決問題,培養(yǎng)學生解決問題的能力和發(fā)散思維的能力。)環(huán)節(jié)四 課堂小結(jié) 鞏固知識本節(jié)課我采用線索性的板書,整個知識結(jié)構(gòu)一目了然,為了充分發(fā)揮學生在課堂的主體地位,我將課堂小結(jié)交由學生完成,請學生根據(jù)課堂學習的內(nèi)容,結(jié)合我的板書設計來進行小結(jié),以此來幫助教師在第一時間掌握學生學習信息的反饋,同時培養(yǎng)學生歸納分析能力、概括能力。
環(huán)節(jié)四 模擬演練 情感升華我將讓同學們閱讀課本22頁的材料,并按照所提供的步驟,組織學生舉辦一次模擬聽證會,將學生分為四個小組,分別扮演教育局工作人員、人大代表、學生家長、學校校長的角色。待學生們模擬聽證會結(jié)束后,我將采訪學生,讓他們談談參加完聽證會后的感受,從而利用角色感悟總結(jié)落實民主決策的重大意義。這樣,學生們在模擬演練中,感悟公民要通過各種渠道參與民主決策,是推進決策科學化、民主化的重要環(huán)節(jié)。為學生將來參與政治生活積累經(jīng)驗,增強了學生的主人翁意識和社會責任感。環(huán)節(jié)五 課堂小結(jié) 課后延伸我將用多媒體展示本節(jié)課的知識框架,并注重引導學生將今天所學新知識與前面知識聯(lián)系起來,幫助學生從宏觀上把握各知識點之間的關系,有利于學生理解記憶。另外,適當?shù)恼n堂練習能檢驗學生掌握知識的情況,因此,課堂小結(jié)后我將讓學生做一些典型的練習,加深學生對本課知識的理解,同時為為下一課的學習做準備。
解析:材料是講學習型社會所產(chǎn)生的影響,A項觀點錯誤,在當前和今后相當長的時間里,學校教育仍然是人們獲得知識的最重要的途徑。B項觀點錯誤,終身學習只是成就人生目的的手段、途徑,而不是目的本身。D項說法錯誤,當前我國社會的中心工作是經(jīng)濟建設。二、問答題5.材料一:日本是公認的漫畫大國,日本的動漫產(chǎn)業(yè)產(chǎn)值每年230萬億日元,成為日本的第二大支柱產(chǎn)業(yè)。在日本,漫畫比電影、小說有時甚至比電視或音樂更受歡迎。日本漫畫的熱潮還席卷了世界:日本每年出口到美國的卡通片價值就達5 000億日元,是日本對美國鋼鐵出口金額的4倍;漫畫中的人物被迅速復制成電子游戲、卡通片及真人演出的節(jié)目。原來只是閑暇時候消遣的漫畫,正飛速滲透到人們的生活中。值得警惕的是,除了催人奮進的精華之外,日本漫畫中也存在暴力、色情、扭曲歷史等諸多糟粕,對缺乏辨別能力的青少年產(chǎn)生了許多不良影響,更引發(fā)了一系列深刻的社會問題。
預測回答:成龍在影視,武術方面的價值,對于某個人,某個集團的價值。知識引導:人的價值體現(xiàn)在多方面的,可以是物質(zhì)方面,也可以是精神方面,可以是對某個人或某個集團的價值,也可以是對人類和社會的價值。設置目的:從學生感興趣的人物入手,分析對人的價值的評價。讓學生自己分析總結(jié),體現(xiàn)學生在新課改下的主體地位。從上述事例中我們可以看出人的價值是什么?如何評價?(學生活動)2.人的價值:在于創(chuàng)造價值,在于對社會的責任和貢獻,即通過自己的活動滿足自己所屬的社會、他人以及自己的需要。(幻燈片顯示)3.人的價值評價:看他的貢獻,最根本的是對社會發(fā)展和人類進步事業(yè)的貢獻。(幻燈片顯示)老師總結(jié):對社會的貢獻并不是高高在上,不可觸及。只要是做自己該做的事,從身邊的小事做起,普普通通的勞動就是貢獻社會和他人。學生歸納:人生價值原理二、價值觀的導向作用(板書)1.價值觀的含義人們在認識各種具體事物的價值的基礎上,形成對事物價值的總的看法和根本觀點。
師:分析得非常到位。大家來看看薛寶釵是怎么說的?薛寶釵的評論:“不像吟月了,月字底下放一個‘色’字倒還使得,你看句句倒是月色。這也罷了,原來詩從胡說來,再遲幾天就好了?!鄙海ㄗx第三首詩)“精華欲掩料應難,影自娟娟魄自寒。一片砧敲千里白,半輪雞唱五更殘。綠蓑江上秋聞笛,紅袖樓頭夜倚欄。博得嫦娥應借問,緣何不使永團圓!”這首詩語言很樸實,但意境很深遠。我雖然讀過《紅樓夢》這本書,也看過電視劇,但我閱歷太淺,說不出詩中所包含的深刻內(nèi)涵。師:賈寶玉的評論:“這首不但好,而且新巧有意趣,可知俗語說的‘天下無難事,只怕有心人。2.意識的形式是主觀的意識是人腦對客觀存在的反映,意識是不是僅僅是人腦對客觀存在原原本本的反映呢?“龍、鳳”是中華民族的象征,是炎黃子孫的兩大主要圖騰,但地球上從來就沒有出現(xiàn)過“龍、鳳”,那么“龍、鳳”的觀念又是從何而來的呢?原來,“龍、鳳”的觀念最早產(chǎn)生于原始社會的圖騰崇拜。、
(二)組織學生探究知識并形成新的知識。我從學生的生活體驗入手,運用案例等形式創(chuàng)設情境呈現(xiàn)問題,使學生在自主探索、合作交流的過程中,發(fā)現(xiàn)問題、分析問題、解決問題,在問題的分析與解決中主動構(gòu)建知識。主要通過幾幅漫畫讓學生思考其中的哲學道理,開始接觸哲學。漫畫一:種瓜得瓜,種豆得豆,種雞蛋得??漫畫二:甲:下雨好極啦!乙:下雨糟透了!漫畫三:——狂妄之徒,你竟然壞了祖上規(guī)矩!在引導學生思考、體驗問題的過程中,可以使學生逐步學會分析、解決問題的方法。這樣做既有利于發(fā)展學生的理解、分析、概括、想象等創(chuàng)新思維能力,又有利于學生表達、動手、協(xié)作等實踐能力的提高,促進學生全面發(fā)展,力求實現(xiàn)教學過程與教學結(jié)果并重,知識與能力并重的目標。
Textbook: Senior English for China (Book 4), by Liu Daoyi Time Allotment: 1 period (40 minutes)Date: March 20, 2014Teaching aids: blackboard, Multi-media, Power Point, chalk I. Text Analysis (教材分析)This unit is about body language, and the text selected in the reading part demonstrates the difference and similarity of body language in many parts of the world. Through learning this passage, students are required to raise their awareness of using body language in different parts of the world. As body language is closely related to our daily life, it is easy to arouse students’ interest in learning this text. Reading skills and speaking training are designed around the text.II. Teaching Objectives (教學目標)By the end of the lesson, students will be able to:1. Language Skill Objective(語言技能目標): develop reading ability (skimming and scanning)as well as speaking ability.2. Cultural Knowledge Objective(文化知識目標): know about the cultural differences of using body language.3. Affective Objective(情感目標): increase students’ awareness of using body language correctly in different cultures. III.Teaching Focuses and Difficulties(教學重點和難點)1. Teaching Focuses(教學重點): the difference and similarity of body language in many parts of the world.2. Teaching Difficulties(教學難點): develop students’ reading abilities of skimming and scanning and ask the students to show their opinions with fluent English.
一. 教材分析1. 本單元的中心話題是“計算機(Computers)”,內(nèi)容涉及計算機的發(fā)展歷史,計算機的應用等。本節(jié)課是該單元的第一課時,我將Warming up, Pre-reading and Comprehending這四部分整合為一節(jié)精讀課。其中。Reading部分是題為WHO AM I?的文章,以第一人稱的擬人手法介紹了計算機發(fā)長演變的歷史和計算機在各個領域的應用,其主旨是表達計算機的發(fā)展變化之快以及在生活中用途之廣。而Warming up部分以圖片的形式展現(xiàn)了計算機的發(fā)展歷程;Pre-reading中的問題和排序分別是為了預測語篇的內(nèi)容和測試學生對計算機歷史了解的情況;Comprehending則通過各項練習訓練學生的閱讀技能,從而加深對文章的理解。可見這幾部分是一個有機的整體。2. 教學目標:1) 語言目標:重點詞匯及短語:abacus, calculate, calculator, PC, laptop, PDA, robot, analytical, technological, universal, mathematical, artificial, intelligent, network, explore, in common, as a result.重點句子: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.
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
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.
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(成龍)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.
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
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