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人教版高中政治必修3傳統(tǒng)文化的繼承說課稿3篇
（二）課堂教學在教學中，無論是形式還是內容，都必須統(tǒng)一于學生的發(fā)展。從形式上說，以學生展示、思考、討論為主，教師點撥為輔，在一定的情境與社會文化背景下，獲得對傳統(tǒng)文化的認識和理解。從內容上說，主要以福州地方傳統(tǒng)文化為素材，圍繞海峽兩岸同時舉辦的“元霄燈會”為主線，回歸到學生的生活世界，更有效地激發(fā)起學生情感，并將生活世界與知識世界銜接起來，在實際情景中分析傳授相關傳統(tǒng)文化的知識，提高學生認識和分析解決問題的能力，逐步形成對傳統(tǒng)文化的情感和價值判斷。教學過程，緊緊圍繞傳統(tǒng)文化，分為“激趣導入--活動感悟--探究思辯--升華導行”四個層次，環(huán)環(huán)相扣，逐步推進，幫助學生完成由感性認識到理性認識的飛躍。1.激趣導入良好的開端是成功的一半。德國的普克朗認為：“思考可以構成一座橋，讓我們通向新知識”。因此，一開始，我就運用對比方法，進行設問，福州和西安、南京、北京一樣也是歷史文化名城，你們同意嗎？
新人教版高中英語必修3Unit 4 Space Exploration-Discovering Useful Structure教學設計
The theme of the section is “Describe space facts and efforts to explore space”. Infinitives are one of non-finite verbs, as the subjects, objects, predicative, attributes and adverbials. This unit is about space exploration, which is a significant scientific activity, so every scientific activity has strong planning. Therefore, using the infinitives to show its purpose, explanations or restrictions is the best choice.1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use infinitives in oral and writing English. 1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use use infinitives in oral and writing English.Step 1 Lead in---Pair workLook at the following sentences and focus on the italicized infinitives. In pairs, discuss their functions. 1. I trained for a long time to fly airplanes as a fighter pilot..(作目的狀語)2. As we all know, an astronaut needs to be healthy and calm in order to work in space..(作目的狀語)3. First of all, you must be intelligent enough to get a related college degree..(作目的狀語)4. Some scientist were determined to help humans realise their dream to explore space..(作定語)5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space..(作定語)Summary:1. 不定式的結構：to+do原形。2. 分析上面的句子，我們知道在描述太空探索時，動詞不定式不僅可以用來表目的，還可以用來作定語，表修飾。
新人教版高中英語必修3Unit 4 Space Exploration-Listening&Speaking＆Talking教學設計二
The themes of this part are “Talk about how to become an astronaut” and “Talk about life in space”. As Neil Armstrong said “Mystery creates wonder and wonder is the basis of man’s desire to understand. Space is difficult for human to reach, therefore, humans are full of wonders about it. However, if wanting to achieve the dream of reaching the Moon, some of our human should work hard to be an astronaut at first. Part A(Talk about how to become an astronaut) is a radio interview in a radio studio, where the host asked the Chinese astronauts about his story how to become an astronaut. Yang Liwei told his dreamed to be an astronaut since childhood. Then he worked hard to get into college at 22. The next 10 years, he gradually became an experienced pilot. At the same time, to be an astronaut, he had to study hard English, science and astronomy and trained hard to keep in good physical and mental health and to practise using space equipment. Part B (Talk about life in space) is also an interview with the astronaut Brown, who is back on the earth. The host Max asked about his space life, such as his emotion about going back the earth, the eating, shower, brushing, hobbies and his work. Part A and Part B are interviews. So expressing curiosity about the guests’ past life is a communicative skill, which students should be guided to learn.1. Students can get detailed information about how Yang Liwei became an astronaut and Max’s space life.2. Students learn to proper listening strategy to get detailed information---listening for numbers and taking notes.3. Students can learn related sentences or phrases to express their curiosity like “ I wish to know...” “I’d love to know...”4. Students can learn more about the space and astronauts, even be interested in working hard to be an astronaut
新人教版高中英語必修3Unit 4 Space Exploration-Reading and Thinking教學設計二
The theme of this unit focuses on “space exploration.” Students will learn about the training and experience needed to become an astronaut. The text is mainly about the development of space exploration. On the one hand, the text helps students to have a good understanding about the great feats humans have achieved, on the other hand, they will further understand the contributions that we Chinese have achieved, and feel confident and proud about our homeland and strengthen their love for our country. The teacher should instruct students to aim high and study harder to make great progress in the space career if possible.1. Read about the development and value of space exploration.2. Explore the mysteries of the universe and the achievements in space exploration.3. Skillfully use the vocabulary of this text to cultivate self-study ability 4. Develop cooperative learning ability through discussion.1. Enable the Ss to talk about the development and value of space exploration.2. Guide the Ss to summarize the main idea of each paragraph as well as the main idea of the text.3. Help Ss comprehend the main reasons for space exploration. Multi-media, textbook, notebooks.Step 1: Warming up and predictionLook at the title and the pictures of the text and predict what the text will be about?2. What are the main reasons for space exploration?
新人教版高中英語必修3Unit 4 Space Exploration-Reading for Writing教學設計二
⑦在我看來, 探索太空是值得的。As far as I am concerned, it is worthwhile to explore the space.Step 10 Writing---draftRecently, students in our class have had heated a discussion on whether space is worth exploring. Students hold different ideas about it.30% of us think space exploration is not worthwhile. They think space is too far away from us and our daily life and is a waste of money. And the money spent on space exploration can be used to solve the earth’s problems such as starvation and pollution.On the other hand，70% think space is worth exploring because we have benefited a lot from it，such as using satellites for communication and weather forecast. What’s more，with further space research，we may solve the population problem by moving to other planets one day. Also，space research will enable us to find new sources to solve the problem of energy shortages on the earth.As far as I am concerned, it is worthwhile to explore the space. Not only can it promote the development of society but also enrich our life. Step 11 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1.Does the writer explain why he/she changed/wanted to change?2.Does the writer tell how the changes have improved or will improve his/her life?3.Is the text well－organised?4.Does the writer use words and expressions to show similarities and differences?5.Are there any grammar or spelling errors?6.Does the writer use correct punctuation？
新人教版高中英語必修3Unit 4 Space Exploration-Listening&Speaking&Talking教學設計一
Listening and Speaking introduces the topic of “talking about how to become an astronaut”. This period is aimed to inform students some details about the requirements of being an astronaut. Students can be motivated and inspired by the astronauts. Teachers ought to encourage students to learn from them and let them aim high and dream big.Listening and Talking introduces the theme of "talk about life in space". This part also informs students more details about life in space and can inspire students to be curious about this job. 1. Guide students to listen for numbers concerning dates, years and ages etc2. Cultivate students' ability to talk about how to become an astronaut and life in space ; 3. Instruct students to use functional sentences of the dialogue such as “ first of all, I am not sure, so what might be .. I guess.. I wonder…I am curious…)appropriately.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to become a qualified astronaut and describe the life in space.Part 1: Listening and SpeakingStep 1: Lead inPredictionThe teacher can ask students to predict what the listening text is about by looking at the pictures.About how to become an astronaut./the requirements of an astronautStep 2: Then, play the radio which is about an interview a. And after finishing listening for the first time, the students need to solve the following tasks.
新人教版高中英語必修3Unit 4 Space Exploration-Reading and Thinking教學設計一
Q4: What is the function of the International exploration ?Having astronauts from different countries on boardQ5: What can you learn from Para 4 ?China has made great achievements in exploring spaceQ6: What is the attitude to the space exploration ?SupportiveStep 6 Post reading---RetellPeople have always wanted to learn more about space. Before the mid-20th century, most people felt (1)_________ (travel) into space was an impossible dream. However, (2)____ the help of scientists, peoplesucceeded in realizing their dream (3) _________ (explore) space. On 4 October 1957, the Sputnik 1 satellite (4) ____________(launch) by the USSR. (5) ________________ scientists try to make sure nothing goes wrong, accidents can still happen. These disasters made everyone(6)___________(disappoint), but people still believe in the importance of (7) ________(carry) on space exploration. In 2003, China became the third country to (8)_____________ (independent) send humans into space. Then Shenzhou 6 and 7 completed (9)____ second manned orbit and the first Chinese spacewalk. In spite of the difficulties, scientists hope future (10)__________ (discovery) will not only enable us to understand the universe but also help us survive well into the future.Answers: 1. travelling 2. with 3. to explore 4. was launched 5. Although6. disappointed 7. carrying 8. independently 9. a 10. discoveriesStep 6 Post reading---Critical thinkingQ1: What do you think of the space exploration ? I think it is beneficial to us. Through further study of space, people will make full use of it in the future, such as the space experiments by Wang Yaping in Tian Gong 1.Q2: If you are determined to be an astronaut, what should you prepare at present ?First of all, I should study hard to get a related college degree. Besides, I must keep mental and physical healthy.Step 7. HomeworkTry to summarize the structure of the article by a mind map.
新人教版高中英語必修3Unit 4 Space Exploration-Reading For Writing教學設計一
另一方面，其余的人反對這個計劃，因為它可能會導致一些不好的影響。7.I hold the belief that space exploration not only enable us to understand how the universe began but also help us survived well into the future.我堅信探索太空不僅能夠使我們了解宇宙的起源而且能夠幫助我們更好地走進未來。8.I think we should spend more time and money exploring space so as to provide new and better solutions to people's shortterm and longterm problems.為了給人類的短期和長期問題提供更新和更好的解決方法，我認為我們應該花更多的時間和金錢來探索太空。9．From my point of view，it is wrong of young people to depend on their telephones too much，which may do harm to both their physical and mental health.在我看來，年輕人過度依賴手機是不對的，因為它們可能會對他們的身心健康都有害。最近你班同學就“人類是否應該進行宇宙探索”這個問題進行了激烈的討論。有人認為，探索宇宙不僅讓人類更好地了解宇宙的發(fā)展，還可以用來指導農業(yè)生產，以及把一些探索太空的高新技術用于現(xiàn)實生活；也有一些人認為探索太空花掉了大量的人力物力；影響了人們的生活水平。請你根據(jù)以下情況寫一篇報告并發(fā)表自己的觀點。注意：1.寫作內容應包括以上全部要點，可適當發(fā)揮，使上下文連貫；
新人教版高中英語必修3Unit 5 The Value of Money-Discovering Useful Structures導學案
4．They were going to find someone to take part in their bet when they saw Henry walking on the street outside.[歸納]1．過去將來時的基本構成和用法過去將來時由“would＋動詞原形”構成，主要表示從過去某一時間來看將要發(fā)生的動作(尤其用于賓語從句中)，還可以表示過去的動作習慣或傾向。Jeff knew he would be tired the next day.He promised that he would not open the letter until 2 o'clock.She said that she wouldn't do that again.2．表示過去將來時的其他表達法(1)was/were going to＋動詞原形：該結構有兩個主要用法，一是表示過去的打算，二是表示在過去看來有跡象表明將要發(fā)生某事。I thought it was going to rain.(2)was/were to＋動詞原形：主要表示過去按計劃或安排要做的事情。She said she was to get married next month.(3)was/were about to＋動詞原形：表示在過去看來即將要發(fā)生的動作，由于本身已含有“即將”的意味，所以不再與表示具體的將來時間狀語連用。I was about to go to bed when the phone rang.(4)was/were＋現(xiàn)在分詞：表示在過去看來即將發(fā)生的動作，通常可用于該結構中的動詞是come，go，leave，arrive，begin，start，stop，close，open，die，join，borrow，buy等瞬間動詞。Jack said he was leaving tomorrow.
人教版高中政治必修2對人民負責說課稿
在學生活動的基礎上，教師總結歸納：要堅持從群眾中來到群眾中去的工作方法。要求：政府要通過各種途徑，利用各種群眾組織、社會團體廣泛收集群眾意見和建議，認真對待群眾的來信來訪。還要為群眾誠心誠意辦實事，盡心竭力解難事，堅持不懈。通過合作探究，以此來培養(yǎng)學生的分析能力，探究能力以及透過現(xiàn)象看本質的能力，培養(yǎng)學生獲取信息的能力，自主學習的能力以及全面看問題的能力，再結合教師的講授，給學生一種茅塞頓開的感覺。環(huán)節(jié)四 回歸生活 提升情感我將引導學生閱讀課本，通過設置活動探究課，結合生活實際從時效，便利，實效等方面請學生評述公民求助或投訴的四種方式的特點和優(yōu)點。在這一過程中，我還會用多媒體展示常用的熱線電話，政府網站上有關信訪、政務公開及其他便民利民的欄目，豐富課堂資源。讓學生閱讀課本，自行歸納知識點，有助于培養(yǎng)學生自主學習能力。
人教版高中生物必修1細胞中的無機物說課稿
為了加強學生的理解，讓學生討論以下問題。由師生共同總結。播放一個短時視頻，讓學生認識到水的重要性后，展示節(jié)水標識，說明由來。細胞中的無機鹽這部分，我將展示圖表，并列出問題：表中哪些成分屬于無機鹽？為什么要在運動員喝的飲料中添加無機鹽？無機鹽在細胞的生活中起什么作用？然后展示廣告語，讓學生思考和討論以下問題，并得到答案。再閱讀課本，驗證自己的答案是否正確。關于無機鹽的作用較難理解，通過列舉人體生活與健康中的各種實例來加深感性認識，加強對理論知識的理解3、課堂小結，強化認識。（3—5分鐘）課堂小結，可以把課堂傳授的知識盡快地轉化為學生的素質；簡單扼要的課堂小結，可使學生更深刻地理解理論知識在實際生活中的應用，并且逐漸地培養(yǎng)學生具有良好的個性。4、板書設計我比較注重直觀、系統(tǒng)的板書設計，還及時地體現(xiàn)教材中的知識點，以便于學生能夠理解掌握。5、布置作業(yè)。
人教版高中歷史必修1甲午中日戰(zhàn)爭說課稿
3．甲午中日戰(zhàn)爭中國戰(zhàn)敗的原因 對于“中國戰(zhàn)敗的原因”這一難點的突破，主要通過設置問題“中國之敗敗在實力遜于日本嗎？”通過幻燈片全方位分析其實中國的綜合國力當時是強于日本的。并且在戰(zhàn)前，日本毫無取勝的把握。讓學生結合剛學習過的戰(zhàn)爭原因和經過進行討論，從多方面分析中國戰(zhàn)敗的原因。經過討論，學生可以得出以下結論：避戰(zhàn)自保方針，沒有積極備戰(zhàn)，將領臨陣脫逃，教師肯定并總結答案進行補充。中日對比：中國士兵出身農民，軍事訓練落后，散兵游勇；日本士兵出身武士，訓練有素；中國將領大多臨陣脫逃，并相互猜忌，受當時惡劣的官風影響；李鴻章深知北洋海軍實情，缺乏軍費，軍備廢弛。為政治資本奉行避戰(zhàn)自保政策，慈禧太后挪用海軍軍費過壽，支持李鴻章。使中方處于被動的局面，一再貽誤戰(zhàn)機。而日本在天皇的帶動下，全民備戰(zhàn)，做了充分的戰(zhàn)爭準備。
人教版新課標高中物理必修1彈力說課稿3篇
基于以上分析，為使本堂課圍繞重點、突破難點，同時讓學生在課堂教學中能力得到提高，我設計如下教學過程。（一）創(chuàng)設情景認識形變由同學們已有的形變知識入手，引入新課。教師演示：①彈簧的壓縮形變；②彈簧的拉伸形變③視頻播放：竹竿形變、鋼絲的扭轉形變。得出形變的概念及各類形變。[設計意圖：我從生活情景中引入新課，是為了激發(fā)學生的好奇心，為學生學習重點和難點內容作鋪墊。]設問：摩天大樓在風的吹拂下會不會擺動，發(fā)生形變嗎？演示微小形變放大實驗：由于這種形變不容易觀察，會使學生產生疑問：到底有沒有發(fā)生形變？解決的辦法是微小形變的演示實驗。為什么光點會往下移？讓學生帶著問題思考后得出結論：是由于桌面發(fā)生了形變，但是形變不明顯。為后面解決壓力和支持力都是彈力做好鋪墊。[設計意圖：使學生知道“放大”是一種科學探究的方法。]
人教版高中歷史必修3啟蒙運動說課稿
教材地位本課具有承上啟下的作用，前承文藝復興，后啟資產階級革命時代的到來，啟蒙運動為資本主義社會構建了一套政治藍圖，具有前瞻性，是近代第二次思想解放運動。因此，本節(jié)內容在整個教材中有著很重要的地位。教學目標1、知識目標：（1）幫助學生了解啟蒙運動的性質、內容和主要啟蒙 思想家及其主張。（2）理解啟蒙運動興起的背景、影響。2、能力目標：（1）在討論和探究過程中訓練學生的科學思維方法和自主學習的能力和掌握解題的方法。（2）通過指導學生閱讀啟蒙思想家的言論資料，培養(yǎng)學生對歷史資料的理解和歸納能力。3、情感價值目標：（1）培養(yǎng)人文意識，強化法治觀念。（2）培養(yǎng)學生的團結協(xié)作精神和競爭意識。教學重點、難點(1)教學重點：啟蒙思想家的主張及啟蒙運動的影響。
人教版高中歷史必修1鴉片戰(zhàn)爭說課稿2篇
“第二次鴉片戰(zhàn)爭”爆發(fā)的原因的講析，可通過出示英國在鴉片戰(zhàn)爭后在中國與洪都拉斯的正當貿易對比表，讓學生觀察和創(chuàng)設情景來得出結論。戰(zhàn)爭的經過及影響,可以通過兩次鴉片戰(zhàn)爭形勢圖,以及一張相關的表格,從戰(zhàn)爭的根本目的、性質、過程及影響等方面來比較兩次戰(zhàn)爭的異同，從而讓學生理解掌握“戰(zhàn)火再燃”其實就是中英鴉片戰(zhàn)爭的繼續(xù)和擴大。并理解“第二次鴉片戰(zhàn)爭”的如何使中國社會半殖民地半封建化的程度大大加深了。并突出英法兩國殖民者在占領北京期間所犯的滔天罪行。3、結：結合板書設計，讓生自己總結這節(jié)課所學的內容，并通過課后習題練于講相結合，來鞏固本課知識。在此基礎上對本課線索及主要知識點進行簡要的梳理。4、課題延伸：教材后探究學習總結中的一段材料，即《英國駐華商務監(jiān)督義律致英國外交大臣巴麥尊的機密件》，讓學生究義律對中國發(fā)動鴉片戰(zhàn)爭原因的說辭來展開探討，啟發(fā)學生運用辨證唯物主義的基本觀點，澄清和批駁在在一問題上的一些錯誤和謬論，從而提高學生辨別是非的能力和批判的能力．
人教版高中歷史必修2古代的經濟政策說課稿
3、清代的“閉關鎖國”政策：（1）原因：①根本原因：自給自足的封建自然經濟；②客觀原因：西方殖民者向東方殖民擴張；③直接原因：對付東南沿海人民的抗清斗爭（2）內容：嚴格限制對外貿易。但并不是禁絕海外貿易。康熙晚期，禁止商人前往南洋貿易；乾隆時只開廣州一處通商，并設立政府特許的貿易機構廣州“十三行”統(tǒng)一經營管理對外貿易。（3）后果：①閉關鎖國政策妨礙了海外市場的開拓，抑制了資本的原始積累，從而阻礙了資本主義萌芽的發(fā)展。②閉關鎖國政策隔絕了中國與外界的聯(lián)系，從而阻斷了中國學習西方的先進科學技術，阻礙了生產力發(fā)展，使中國落后于世界潮流。③“閉關鎖國”政策在一定程度上也保護了國家的安全。教師可以設置問題：17-18世紀中國顯露出哪些危機？
人教版高中歷史必修2羅斯福新政說課稿2篇
1、教材的地位作用本課是新人教版普通高中歷史必修Ⅱ第六單元第18課的內容，闡述羅斯福新政的背景、措施、影響。從單元知識安排看，本課與第17課《空前嚴重的資本主義世界經濟危機》、19課《戰(zhàn)后資本主義的新變化》共同詮釋第六單元課題——《資本主義世界經濟政策的調整》。說明了“資本主義經濟理論和政策隨著資本主義發(fā)展而不斷調整的特點”,凸顯了“市場調節(jié)”和“國家干預”在經濟發(fā)展中的重要性。從知識體系看，它是學生學習了第一次工業(yè)革命后自由資本主義、第二次工業(yè)革命后的壟斷資本主義等之后出現(xiàn)的，既是對上述知識的鞏固與綜合運用，又為學生學習必修二的相關內容打下基礎，有承上啟下的作用。本課三個子目從邏輯上看又是遞進關系。第一個子目“臨危受命”承上啟下，說明了羅斯福上臺的歷史背景具有臨危受命的特點，第二個子目“實施新政”講述了羅斯福新政的主要內容，第三個子目“擺托危機困境”主要講述了羅斯福新政的影響。
人教版高中歷史必修2開辟新航路說課稿3篇
一、說教材《開辟新航路》是高中《歷史·必修二》第5課的內容。從三個方面向學生介紹了歐洲人開辟新航路的歷史：即新航路開辟的原因和條件、新航路開辟經過以及影響。前4課內容介紹了古代中國經濟的基本結構與特點，從第5課開始學習資本主義世界市場的形成和發(fā)展。本課內容相當重要，上承古代中國，下啟近代世界。新航路的開辟，打破了世界相對隔絕的狀態(tài)，世界真正開始融合為一個整體。從此，以西歐為中心的世界市場的雛形開始出現(xiàn)。隨后的殖民擴張，世界市場拓展；第一次工業(yè)革命，世界市場基本形成；第二次工業(yè)革命，世界市場發(fā)展。二、說目標1、課程標準概述迪亞士、哥倫布開辟新航路的史實，認識地理大發(fā)現(xiàn)對世界市場形成的意義。2、三維目標①知識與能力：掌握新航路開辟的原因、經過、影響。②過程與方法：引導學生分析原因及影響，培養(yǎng)學生分析和歸納問題的能力。③情感態(tài)度與價值觀：A、通過對新航路開辟過程的學習，使學生感受和學習探險家們勇于進取的開拓精神。B、通過學習新航路開辟的影響，使學生認識新航路開辟促進了人類社會的整體發(fā)展。
人教版高中歷史必修3宋明理學說課稿3篇
陸王心學與程朱理學相比有何異同？生 不同點：在理的內涵上不同，程朱理學認為“理”是貫通于宇宙、人倫的客觀存在，是一種普遍的規(guī)律準則；陸王心學認為心即理，是“良知”，認為人心便是世界萬物的本原。方法上也有不同：前者向外追究，“格物致知”；后者向內探求，“發(fā)明本心”以求理，克服私欲、回復良知。生 相同點：都提出了一個宇宙、社會、人生遵循的“理”。師 對。程朱理學是客觀唯心主義，陽明心學是主觀唯心主義。這兩者的分歧是理學范圍內的分歧，其基本思想是一致的。師 宋明理學與漢唐以前的儒學比較，最大的特點在于批判地吸收了佛教哲學的思辨結構和道教的宇宙生成論，將儒家的倫理學說概括升華為哲學基本問題。其實質是把佛、道“養(yǎng)性”“修身”引向儒家的“齊家”“治國”“平天下”，對儒家的綱常道德給予哲學論證，使之神圣化、絕對化、普遍化，以便深入人心，做到人人遵而行之。
人教版高中生物必修1細胞增殖說課稿
f.有絲分裂的意義（討論分析教學），首先引導學生結合所學知識討論有絲分裂的的作用，最后有教師歸納總結，并要求學生在理解的基礎上記憶。g.無絲分裂（圖形直觀教學、簡介），本部分內容不是教學的重點，內容也相對簡單，所以我的教學方法是直接給學生展示掛圖，再進行簡短介紹，讓學生了解即可。h.引出減數(shù)分裂的概念，為第五章學習打下基礎。小結：新課講完以后由教師對本節(jié)內容進行總結鞏固和反饋：進行一些課堂練習達到鞏固和反饋的作用。最后布置作業(yè)，各種難度的作業(yè)題目均設置一些，其中簡單題比重大，難題要求學生選作，這樣提高學生學習積極性。2教學媒體程序設計: 細胞周期的概念（多媒體課件演示周期動畫）植物細胞有絲分裂（多媒體課件演示分裂各期動畫）動植物細胞有絲分裂異同點（多媒體課件演示分裂各期動畫）有絲分裂過程中DNA和染色體數(shù)量的變化規(guī)律（掛圖演示，包括表格和函數(shù)圖象）