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新人教版高中英語(yǔ)必修2Unit 5 Music-Reading and Thinking教案二
1. Get basic information about Eric; read deeply to understand the history and development of the virtual choir.2. Understand what the function of the virtual choir is and how to make a virtual choir.3. Understand the meaning of some languages in the context of the text through question guidance, such as “Many people do not have close friends or contacts who have the same interest in music.” and so on.Step 1 Leading-in1. Answer the following questions.Q1：Do you know the Apps like Tik Tok and Quick Hand?Q2: Do you want to make a Tik Tok video or a Quick Hand video?2. Play a Tik Tok video Step 2: Understanding the title Q1：What does the title mean ?Q2: Is the article a narration or exposition? Why? Q3: Can you change the title ? If you can, what is the title?Step 3: Scanning the whole text and getting the basic information1. Answer the following questions.Q1：Who came up with the idea for a virtual choir?Q2: Where did Eric studied the musical composition?Q3: What is his song?2. Find the main idea of each paragraph3. Deal with some new words.Step 4: Reading carefully to get detailed informationPara 1 How to make a virtual choir1. PreparationA. tools: a virtual camera; an Internet connectionB. hero/heroin: friends or some individuals who have the same interests2. Process
新人教版高中英語(yǔ)必修2Unit 5 Music-Reading and Thinking教案一
This section focuses on "learning about experiencing music Online". This virtual choir is a new form of music performance. Members from all over the world don't need to love to come to a place. Instead, they use the new technology to model the various parts and wonderful virtual harmony group of music in the family. Students need to understand the main meaning of each paragraph. Finding topic sentences is an important way to understand the general idea of a paragraph. After the topic sentence, it is usually the detail sentence that supports and explains the topic sentence. Some paragraphs have obvious subject sentences, for example, the first sentence of the second paragraph is the subject sentence of the paragraph, and the following sentenceStudents need to pay attention to the topic sentences and key sentences, and then pay attention to how the sentences after the meaning explain, explain and support the topic sentences or key sentences before.1.Guide students to learn about experiencing music online2.Guide students to scan and circle the information in the text.3.Guide students to find the numbers and dates to fill in the timeline.4.Guide students to learn more about music by completing the sentences with the correct forms of the words and phrases. And then make a mind map about the outline of the passage.1. Guide students to pay attention to reading strategies, such as prediction, self-questioning and scanning.2. Help students sort out the main meaning of each paragraph and understand the narrative characteristics of "timeline” in illustrative style.3. Lead students to understand the changes that have been caused by the Internet.
新人教版高中英語(yǔ)必修2Unit 5 Music-Reading for Writing教案二
The Internet celebrity Gao Yifeng. Years ago, he owned 5 companies and the staffs over 1,000, but during the economy crisis, he became nothing but debt. He was so worried that his hair became white overnight. There was a time when he wanted to killed himself. But after listening to the song Start Over by Liu Huan, he decided to cheer himself up. He started a steamed bun shop and gradually became a national chain shops. Now he became successful again.Walter Haddon said, “Music is the medicine of a troubled mind.” Music contains such a pleasant and inspiring force. Music gave him courage and bravery. When he listened to the song, it made his spirit fly like a kite in the wind. Music gave him strength and brought him relief. It was the rock I leant on to become strong and to get through those hard times. I hope none of us have to go through the same kind of suffering that he did. At the same time, we all go through various periods when we feel sad or alone. During those times, music can help us in the same way that it helped him. I hope we all will somehow begin to treasure music and make it a part of our life. Thank you for your listening !5.Revise your writing each other.Does he/she explain how music has changed his/her/someone else’s life?Are some of the rhetorical devices included and used properly ?Does he/she talk about how music makes him/her/someone feel?Is the first word in each sentences capitalised?Does he/she use correct punctuation ?
新人教版高中英語(yǔ)必修2Unit 5 Music-Reading For Writing教案一
(4)Now we have heard a number of outstanding speeches ... 我們已經(jīng)聆聽(tīng)了許多精彩的發(fā)言……(5)Because we wanted the nations of the world, working together, to deal with ... 因?yàn)槲覀兿Ｍ澜绺鲊?guó)團(tuán)結(jié)起來(lái)去應(yīng)對(duì)……(6)And if we do not act ... 如果我們不采取行動(dòng)……(7)Now, I share the concerns that have been expressed ... 我也同意對(duì)于……表達(dá)的擔(dān)心(8)Let us show the world that by working together we can ... 讓我們告訴全世界，通過(guò)一起努力我們可以……(9)It is now time for us to ... 是時(shí)候我們……(10)And I have always wished that ... 我一直希望……(11)Thank you for letting me share this day with me.感謝你們和我共度這一天。實(shí)踐演練：假如你是高中生李華，你校將舉辦一次以“音樂(lè)”為主題的演講比賽，請(qǐng)你按照主題，寫下你的演講稿。注意：詞數(shù)100左右。First of all, thank you for listening to my speech. My topic is: love music like love yourself.Music is like the air we need to maintain our normal lives around us. You can't imagine how terrible a world without music would be. Movies and TV shows have no music, only dry conversations and scenes; mobile phones only vibrations; streets only noisy crowds; cafes, western restaurants only depressed meals. What a terrible world it is!As a student, I hope we all can enjoy the fun brought by music in our spare time. Instead of just listening to music, we can even make our own music. Let's enjoy the fun of music!Thanks again for your attention!
人教版高中地理必修2城市化精品教案
1．改善城市環(huán)境：治理河流、控制大氣污染物、大力加強(qiáng)綠化建設(shè)為改善城市環(huán)境，上海市全面展開對(duì)大氣、河流、噪聲等多方面的治理工作。如蘇州河的治理、降低城市污染物濃度、加強(qiáng)綠化建設(shè)，截止1990年，市區(qū)綠化覆蓋率達(dá)到20.3%。2．改善城市交通、改善居住條件擴(kuò)寬主干道，修建環(huán)城公路，修筑了南浦大橋和揚(yáng)浦大橋，新修城市高架公路和地鐵，改造住宅。3．控制城市規(guī)模建立衛(wèi)星城，開發(fā)新區(qū)，有效地控制城市中心區(qū)的規(guī)模。思考：什么時(shí)候許多國(guó)家采取措施保護(hù)和改善城市環(huán)境？你認(rèn)為可以采取哪些措施來(lái)保護(hù)和改善城市環(huán)境？上海市保護(hù)和改善城市環(huán)境的措施：上海的衛(wèi)星城有哪些？上海新建了哪個(gè)新區(qū)？目前浦東新區(qū)在上海的地位如何？建立衛(wèi)星城和開發(fā)新區(qū)可以起到什么作用？上海市為改善交通條件，做了哪些工作？
人教版高中地理必修2城市內(nèi)部空間結(jié)構(gòu)教案
過(guò)渡：在實(shí)際生活中，城市內(nèi)部空間結(jié)構(gòu)并非完全按照這一經(jīng)濟(jì)規(guī)律呈現(xiàn)，而是更具復(fù)雜性。這說(shuō)明除了經(jīng)濟(jì)因素外，還有很多其他因素在起作用，請(qǐng)大家結(jié)合你的認(rèn)識(shí)、圖2．9和案例1：紐約市的少數(shù)民族區(qū)談?wù)勀愕目捶?。?）其他因素I收入——形成不同級(jí)別住宅區(qū)的常見(jiàn)原因。有能力支付昂貴租金和選擇最佳居住環(huán)境的人，其居住地往往形成高級(jí)住宅區(qū)。II知名度——城市內(nèi)某些地區(qū)在歷史、文化或經(jīng)濟(jì)方面具有很高的聲譽(yù)，這往往會(huì)吸引更多新的住宅或商場(chǎng)建在該處，以提高其知名度。III種族聚居區(qū)的形成——在有些城市的某一區(qū)域內(nèi)，如果某個(gè)種族或宗教團(tuán)體占優(yōu)勢(shì)，就可能形成種族聚居區(qū)。如紐約市的唐人街、哈林區(qū)、小意大利區(qū)等。IV歷史因素——城市的建筑物和街道設(shè)計(jì)可以維持久遠(yuǎn)，早期的土地利用方式對(duì)日后的功能分區(qū)有著深遠(yuǎn)的影響。
人教版高中地理必修2工業(yè)地域類型教案
1．生產(chǎn)上的聯(lián)系：有投入——產(chǎn)出的關(guān)系工業(yè)生產(chǎn)的過(guò)程復(fù)雜，工序繁多，往往需要經(jīng)過(guò)多家工廠的加工才能完成一種產(chǎn)品的生產(chǎn)過(guò)程。因此，在這些工廠之間就存在著產(chǎn)品與原料的聯(lián)系。一家工廠生產(chǎn)的產(chǎn)品是另一家工廠的原料，這兩家工廠之間就形成了工序上的工業(yè)聯(lián)系。2．非生產(chǎn)上的聯(lián)系：如地理空間上的聯(lián)系布局在同一個(gè)工業(yè)區(qū)內(nèi)，共同利用工業(yè)區(qū)的道路、供水、供電、通信等基礎(chǔ)設(shè)施以及其他生產(chǎn)、生活服務(wù)設(shè)施，或者共同利用當(dāng)?shù)亓畠r(jià)的勞動(dòng)力，形成了空間利用上的工業(yè)聯(lián)系。我國(guó)許多地方的經(jīng)濟(jì)技術(shù)開發(fā)區(qū)就是建立在這種工業(yè)聯(lián)系基礎(chǔ)上的。（二）工業(yè)集聚1．形成具有工業(yè)聯(lián)系的一些工廠往往近距離地聚集起來(lái)，形成工業(yè)集聚現(xiàn)象。2．工業(yè)集聚可獲得效應(yīng)（1）工業(yè)集聚可以加強(qiáng)企業(yè)間的信息交流和技術(shù)協(xié)作，降低中間產(chǎn)品的運(yùn)輸費(fèi)用和能源消耗，進(jìn)而降低生產(chǎn)成本，提高生產(chǎn)效率和利潤(rùn)，取得規(guī)模效益。
人教版新課標(biāo)高中物理必修1彈力教案2篇
一般情況下，凡是支持物對(duì)物體的支持力，都是支持物因發(fā)生形變而對(duì)物體產(chǎn)生彈力。所以支持力的方向總是垂直于支持面而指向被支持的物體。例1：放在水平桌面上的書書由于重力的作用而壓迫桌面，使書和桌面同時(shí)發(fā)生微小形變，要恢復(fù)原狀，對(duì)桌面產(chǎn)生垂直于桌面向下的彈力f1，這就是書對(duì)桌面的壓力；桌面由于發(fā)生微小的形變，對(duì)書產(chǎn)生垂直于書面向上的彈力f2，這就是桌面對(duì)書的支持力。學(xué)生分析：靜止地放在傾斜木板上的書，書對(duì)木板的壓力和木板對(duì)書的支持力。并畫出力的示意圖。結(jié)論：壓力、支持力都是彈力。壓力的方向總是垂直于支持面而指向被壓的物體，支持力的方向總是垂直于支持面而指向被支持的物體。引導(dǎo)學(xué)生分析靜止時(shí)，懸繩對(duì)重物的拉力及方向。引導(dǎo)得出：懸掛物由于重力的作用而拉緊懸繩，使重物、懸繩同時(shí)發(fā)生微小的形變。重物由于發(fā)生微小的形變，對(duì)懸繩產(chǎn)生豎直向下的彈力f1，這是物對(duì)繩的拉力；懸繩由于發(fā)生微小形變，對(duì)物產(chǎn)生豎直向上的彈力f2，這就是繩對(duì)物體的拉力。
人教版高中語(yǔ)文必修1《小狗包弟》教案2篇
巴金在十年浩劫中的大致經(jīng)歷：放棄包弟并沒(méi)有換得保全一家人，1968年8月，巴金被關(guān)進(jìn)牛棚改造，隨后經(jīng)受了大字報(bào)、掛牌游街等形式的批斗。1970年，到農(nóng)村改造，掏大糞、喂豬、背稻草、種地……1972年，妻子蕭珊在飽受精神折磨后患上癌癥，病逝。巴金的兒子在勞動(dòng)改造的過(guò)程中也飽受精神和肉體上的折磨，性格變得內(nèi)向抑郁，疾病纏身。此時(shí)，巴金69歲。巴金曾在《病中》一文寫道：“當(dāng)姚文元拿著棒子的時(shí)候，我給關(guān)在牛棚里除了唯唯諾諾之外，敢于做過(guò)什么事情？十年間我不過(guò)是一條含著眼淚等人宰割的牛。”小結(jié)：（幻燈片12）社會(huì)是病態(tài)的社會(huì)，政治是高壓的政治，人性是扭曲的人性。十年文革，十年浩劫，給多少人留下了累累不可彌合的精神創(chuàng)傷。即使一條小狗，也可能擺脫不了“文革”無(wú)情的迫害，比如包弟，比如藝術(shù)家鄰居的小狗。
人教版高中語(yǔ)文必修1《論語(yǔ)》教案2篇
【教學(xué)意圖】要了解中國(guó)傳統(tǒng)文化，必須閱讀古詩(shī)文名著名篇。但在中國(guó)文化形成過(guò)程中影響最大的是什么？可以說(shuō)是儒家學(xué)說(shuō)，包括《論語(yǔ)》這部經(jīng)典。《論語(yǔ)》等書是讀書人求仕做官的必修課本，是知識(shí)分子的思想言行基礎(chǔ)，而且影響到整個(gè)社會(huì)生活，內(nèi)容包括倫理道德、教育體制、民間習(xí)俗等方面的思想。因此，要了解中國(guó)傳統(tǒng)文化，有必要讀一讀《論語(yǔ)》。【教學(xué)設(shè)計(jì)】因《論語(yǔ)》的年代已久遠(yuǎn)，對(duì)學(xué)生而言，要理解透徹文句是比較深?yuàn)W困難的，因此必須在充分理解文意的基礎(chǔ)上，對(duì)《論語(yǔ)》進(jìn)行思想上的解讀?？捎山處煆摹墩撜Z(yǔ)》中概括出幾點(diǎn)與生活、現(xiàn)實(shí)相關(guān)的要點(diǎn)，要求學(xué)生分組進(jìn)行透徹的學(xué)習(xí)和領(lǐng)會(huì)，如“小人與君子”、“學(xué)習(xí)的方法”、“教育的理念”等等?！冀虒W(xué)重點(diǎn)、難點(diǎn)〗讀《論語(yǔ)》知儒家思想?！冀虒W(xué)方法〗講解啟發(fā)、探究梳理、拓展延伸。
人教版高中語(yǔ)文必修1《再別康橋》教案2篇
教學(xué)過(guò)程：一、交流誦讀課文技巧?！?jié)奏、韻腳、感情……（5分鐘）二、再讀確定自己的學(xué)習(xí)主題（15分）1、主題提示：音樂(lè)美、繪畫美、建筑美簡(jiǎn)介詩(shī)歌“三美”追求聞一多先生是我國(guó)現(xiàn)代文學(xué)史上集詩(shī)人、學(xué)者和斗士于一身的重要詩(shī)人。他不但致力于新詩(shī)藝術(shù)美的探索，提出了音樂(lè)美、繪畫美、建筑美的詩(shī)歌\"三美\"的新格律詩(shī)理論主張，還努力進(jìn)行創(chuàng)作實(shí)踐，寫出了許多精美詩(shī)篇。他的新格律詩(shī)理論被后人稱為現(xiàn)代詩(shī)學(xué)的奠基石，影響深遠(yuǎn)?！对?shī)的格律》是聞一多先生系列詩(shī)論中最重要的一篇。在這篇論文中，他系統(tǒng)的提出\"詩(shī)的實(shí)力不獨(dú)包括音樂(lè)的美（音節(jié)）、繪畫的美（詞藻），并且還有建筑的美（節(jié)的勻稱和句的均齊）。\"這一關(guān)于新詩(shī)\"三美\"主張遂成為新格律詩(shī)派的理論綱領(lǐng)。
人教版高中語(yǔ)文必修2《蘭亭集序》教案3篇
三、指導(dǎo)第一段的背誦，點(diǎn)撥理解句意，強(qiáng)調(diào)關(guān)鍵詞語(yǔ)，注重文言基礎(chǔ)知識(shí)教學(xué)。過(guò)程中要讓學(xué)生反復(fù)讀背。背誦線索：時(shí)間——地點(diǎn)——事件——人物——環(huán)境——活動(dòng)——天氣——感覺(jué)。時(shí)間：永和九年，歲在癸丑，暮春之初。地點(diǎn)：會(huì)于會(huì)稽山陰之蘭亭。事件：修稧事也。人物：群賢畢至，少長(zhǎng)咸集。環(huán)境：此地有崇山峻嶺，茂林修竹；又有清流激湍，映帶左右?；顒?dòng)：引以為流觴曲水，列坐其次。雖無(wú)絲竹管弦之盛，一觴一詠，亦足以暢敘幽情。天氣：是日也，天朗氣清，惠風(fēng)和暢。感覺(jué)：仰觀宇宙之大，俯察品類之盛，所以極視聽(tīng)之娛，信可樂(lè)也。四、學(xué)生自讀背誦5分鐘。五、抽一至二名學(xué)生試背課文，教師可作必要的線索提示。第二課時(shí)一、聽(tīng)名家示范朗誦，學(xué)生小聲跟讀。二、復(fù)習(xí)鞏固第一自然段的閱讀背誦。三、朗讀、解析第二自然段，理解文章“由敘入感”的寫作結(jié)構(gòu)。
人教版高中語(yǔ)文必修3《勸學(xué)》教案2篇
五．研習(xí)第一段：1．誦讀指導(dǎo)要處理好句中停頓2．請(qǐng)學(xué)生對(duì)照注釋翻譯本段重點(diǎn)詞句：學(xué)不可以已已：停止。青，取之于藍(lán)而青于藍(lán)于：從；比。木直中繩中：zhàng符合，合于。雖有槁暴，不復(fù)挺者，揉使之然也有通又，揉通煣，以火烘木，使其彎曲。然：這樣。翻譯：故木受繩則直，金就礪則利，君子博學(xué)而日參省乎己，則知明而行無(wú)過(guò)矣。所以木材經(jīng)墨線畫過(guò)（再用斧鋸加工）就直了，金屬刀劍拿到磨刀石上（磨過(guò)）就鋒利了，君子廣博地學(xué)習(xí)并且每天對(duì)自己檢驗(yàn)反省，就能智慧明達(dá)，行為沒(méi)有過(guò)錯(cuò)了。3．本段是從哪個(gè)角度論述中心論點(diǎn)的？明確：本段是從學(xué)習(xí)的意義這個(gè)角度論述中心論點(diǎn)的。荀子認(rèn)為人的知識(shí)、道德、才能都不是天生成的，而是后天不斷學(xué)習(xí)獲得的，學(xué)習(xí)的意義十分重大，所以學(xué)習(xí)不能停止。4．本段中幾個(gè)比喻句是為了說(shuō)明什么道理？學(xué)生討論發(fā)言，教師明確：
新人教版高中英語(yǔ)必修2Unit 1 Cultural Heritage-Discovering Useful Structure教案二
This theme of the part is “ Describe people or things in greater detail”. Students have learned the grammar(restrictive relative clauses) in Book 1, and further review and consolidate its structure “prep+relative pronouns(which/whom)” and the relative adverbs(when, where and why), besides students should understand its form, meaning and functions. In this section, students should be able to express the grammar correctly in daily communication and in the writing. 1. Review the basic usages of relative pronouns and adverbs of attributive clauses . 2. Learn to use some special cases about restrictive relative clauses.3. Learn to write sentences with restrictive relative clauses flexibly according to the context.1. Review the basic usages of relative pronouns and adverbs of attributive clauses .2. Learn to use some special cases about restrictive relative clauses.3. Learn tow rite sentences with restrictive relative clauses flexibly according to the context.Step 1. Observe the following sentences, and mark the relative pronouns and the adverbs. 1. After listening to the scientists who had studied the problems, and citizens who lived near the dam, the government turned to the United Nations for help.2. Temples and other cultural sites were taken down piece by piece, and then moved and put back together again in a place where they were safe from the water.Step 2 PracticePlease complete these sentences with relative pronouns and relative adverbs and answer the following questions.Questions: 1. What is the head noun ?2. What relative words should be used ?3. What elements do they act in these sentences ?
新人教版高中英語(yǔ)必修2Unit 3 The Internet-Reading and Thinking教案一
Paragraph 3. Jan decided to start an IT club to teach old people how to use computers and the Internet. Paragraph 4. Jan has started taking online classes to learn more about how to use the Internet to make society better. Paragraph 5. Jan’s life has been greatly improved by the Internet. Step 5: Critical thinking:(1)How do you arrange your time spent on study and the Internet? Is it reasonable? I usually surf the Internet using my mobile phone for only an hour after class, and it is reasonable for me.(2)What are your online activities? Are they safe? I chat with my friends, read news and play games. I never give away my private information so I think they are safe.Step 4: summary Much has been written about the wonders of the World Wide Web. There are countless articles (1)______(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)_____(much) for people than simply make life more convenient. People’s lives (3) _________________(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)_____(stick) at home with only her computer to keep (5)___(she) company. She joined an online group (6)______ she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)_______(benefit). She was so inspired (8)____ she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)___ children in poor countries. Jan’s life has been (10)______(great) improved by the Internet. Step 5 Homework:Review what we have learned and find out the key language points in the text.
新人教版高中英語(yǔ)必修2Unit 5 Music-Discovering Useful Structures教案二
4. When he got absorbed in his world of music, he felt as if he could “see” the beauty of the world around him, like he had in his previous life.P·P as adverbial: _________________________________________________________________.Function: _______________________________________________________________________.Step 5 Solid Complete the passage with the words in brackets in their correct forms.Well known as a successful band, the Impact members show quite a few striking qualities. They never ever give up. When _____________(question) by the media, they are not _____________(discourage) and practise even harder. They are improving themselves by attending several master training class. They are united. _____________(fill with) team spirit, they act as a whole, always aiming for glory. Step 6 Difference and similarity from -ingObserve the following examples.1. He went out, shutting the door behind him.=He went out, ________________________________________________________.2. Not knowing what to do, he went to his parents for help.=__________________________________________, he went to his parents for help.Similarity: _______________________________________________________________________________________________________________________________________________________.Difference : _______________________________________________________________________________________________________________________________________________________.Step Practice1. ________ in a hurry, this article was not so good. 因?yàn)閷懙么颐? 這篇文章不是很好。2. ________ carefully, he found something he hadn’t known before. 他仔細(xì)讀書時(shí), 發(fā)現(xiàn)了一些從前不知道的東西。3. ________ why he did it, the monitor said it was his duty. 當(dāng)被問(wèn)及他為什么要這么做時(shí), 班長(zhǎng)說(shuō)這是他的職責(zé)
人教版新課標(biāo)高中物理必修1摩擦力教案2篇
l．知識(shí)與技能：（1）知道摩擦力產(chǎn)生的條件。（2）能在簡(jiǎn)單問(wèn)題中，根據(jù)物體的運(yùn)動(dòng)狀態(tài)，判斷靜摩擦力的有無(wú)、大小和方向；知道存在著最大靜摩擦力。（3）掌握動(dòng)磨擦因數(shù)，會(huì)在具體問(wèn)題中計(jì)算滑動(dòng)磨擦力，掌握判定摩擦力方向的方法。（4）知道影響到摩擦因數(shù)的因素。2．過(guò)程與方法：通過(guò)觀察演示實(shí)驗(yàn)，概括出摩擦力產(chǎn)生的條件及摩擦力的特點(diǎn)，培養(yǎng)學(xué)生的觀察、概括能力。通過(guò)靜摩擦力與滑動(dòng)摩擦力的區(qū)別對(duì)比，培養(yǎng)學(xué)生分析綜合能力。3．情感態(tài)度價(jià)值觀：在分析物體所受摩擦力時(shí)，突出主要矛盾，忽略次要因素及無(wú)關(guān)因素，總結(jié)出摩擦力產(chǎn)生的條件和規(guī)律。二、重點(diǎn)、難點(diǎn)分析1．本節(jié)課的內(nèi)容分滑動(dòng)摩擦力和靜摩擦力兩部分。重點(diǎn)是摩擦力產(chǎn)生的條件、特性和規(guī)律，通過(guò)演示實(shí)驗(yàn)得出關(guān)系f=μN(yùn)。2．難點(diǎn)是學(xué)生有初中的知識(shí)，往往誤認(rèn)為壓力N的大小總是跟滑動(dòng)物體所受的重力相等，因此必須指出只有當(dāng)兩物體的接觸面垂直，物體在水平拉力作用下，沿水平面滑動(dòng)時(shí)，壓力N的大小才跟物體所受的重力相等。
人教版高中語(yǔ)文必修5《談中國(guó)詩(shī)》教案
教師提示：1.這句話的本體不是一般意義上的“中國(guó)詩(shī)”，即不是指中國(guó)詩(shī)歌中的某一類作品或某位詩(shī)人的作品，而是指中國(guó)詩(shī)的發(fā)展特點(diǎn)。早熟，是指“純粹的抒情詩(shī)的精髓和峰極，在中國(guó)詩(shī)里出現(xiàn)得異常之早”；早衰，是指“中國(guó)詩(shī)一蹴而至崇高的境界，以后就缺乏變化，而且逐漸腐化”(腐化，是對(duì)詩(shī)的思想內(nèi)容和藝術(shù)價(jià)值而言的)。這句話，借助比喻和比喻中的對(duì)比(“早熟”與“早衰”)，從詩(shī)歌發(fā)展的角度，簡(jiǎn)要地說(shuō)明了中國(guó)詩(shī)的藝術(shù)特征和由此產(chǎn)生的負(fù)面影響。2.這句話有兩層意思：一是借梵文的《百喻經(jīng)》闡釋中國(guó)的藝術(shù)和思想體構(gòu)上的缺欠，旨在批評(píng)；二是點(diǎn)明造成這種缺欠的根本原因?！耙粋€(gè)印度愚人要住三層樓而不許匠人造底下兩層”這樣的建筑物就是“飄飄凌云的空中樓閣”，作者以此作喻，批評(píng)中國(guó)的藝術(shù)和思想體構(gòu)缺乏嚴(yán)密的邏輯性，往往脫離客觀實(shí)際，沒(méi)有堅(jiān)實(shí)的基礎(chǔ)，其結(jié)果必定影響藝術(shù)的健康、穩(wěn)定地發(fā)展。
人教版新課標(biāo)高中物理必修2探究彈性勢(shì)能的表達(dá)式教案2篇
“做功的過(guò)程就是能量轉(zhuǎn)化過(guò)程”，這是本章教學(xué)中的一條主線。對(duì)于一種勢(shì)能，就一定對(duì)應(yīng)于相應(yīng)的力做功。類比研究重力勢(shì)能是從分析重力做功入手的，研究彈簧的彈性勢(shì)能則應(yīng)從彈簧的彈力做功入手。然而彈簧的彈力是一個(gè)變力，如何研究變力做功是本節(jié)的一個(gè)難點(diǎn)，也是重點(diǎn)。首先，要引導(dǎo)學(xué)生通過(guò)類比重力做功和重力勢(shì)能的關(guān)系得出彈簧的彈力做功和彈簧的彈性勢(shì)能的關(guān)系。其次，通過(guò)合理的猜想與假設(shè)得出彈簧的彈力做功與哪些物理量有關(guān)。最后，類比勻變速直線運(yùn)動(dòng)求位移的方法，進(jìn)行知識(shí)遷移，利用微元法的思想得到彈簧彈力做功的表達(dá)式，逐步把微分和積分的思想滲透到學(xué)生的思維中。本節(jié)課通過(guò)游戲引入課題，通過(guò)生活中拉弓射箭、撐桿跳高和彈跳蛙等玩具以及各種彈簧等實(shí)例來(lái)創(chuàng)設(shè)情景，提出問(wèn)題。給學(xué)生感性認(rèn)識(shí)，引起學(xué)生的好奇心；讓學(xué)生對(duì)彈簧彈力做功的影響因素進(jìn)行猜想和假設(shè)，提出合理的推測(cè)，激發(fā)學(xué)生的探索心理，構(gòu)思實(shí)驗(yàn)，為定性探究打下基礎(chǔ)。然后，引導(dǎo)學(xué)生通過(guò)類比重力做功與重力勢(shì)能的關(guān)系得出彈簧彈性勢(shì)能與彈簧彈力做功的關(guān)系。
人教版高中歷史必修2發(fā)達(dá)的古代農(nóng)業(yè)教案2篇
（四）概括古代中國(guó)農(nóng)業(yè)經(jīng)濟(jì)的基本特點(diǎn)從歷史地位、生產(chǎn)結(jié)構(gòu)、基本特征、基本模式等幾方面，小組討論古代中國(guó)農(nóng)業(yè)經(jīng)濟(jì)的特點(diǎn)，然后展示。1、歷史地位：中國(guó)是獨(dú)立發(fā)展、自成體系的世界農(nóng)業(yè)起源中心之一。2、生產(chǎn)結(jié)構(gòu)：種植業(yè)和家畜飼養(yǎng)業(yè)相結(jié)合，以種植業(yè)為主，家畜飼養(yǎng)業(yè)為輔。3、基本特征：農(nóng)業(yè)生產(chǎn)精耕細(xì)作。 4、基本模式：一家一戶的小農(nóng)經(jīng)濟(jì)。知識(shí)拓展：當(dāng)今中國(guó)農(nóng)村人口膨脹，農(nóng)民生活條件急需提高，如何處理好“三農(nóng)”問(wèn)題是中國(guó)社會(huì)走向和諧健康發(fā)展的重要課題，回顧中國(guó)古代農(nóng)業(yè)的發(fā)展歷程，結(jié)合農(nóng)業(yè)發(fā)展的現(xiàn)狀，談?wù)勀愕目捶ê徒ㄗh。展示：1.因地制宜，發(fā)揮各地特色優(yōu)勢(shì)2、精耕細(xì)作和現(xiàn)代科學(xué)相結(jié)合； 3.保護(hù)生態(tài)環(huán)境，堅(jiān)持可持續(xù)發(fā)展；4.完善水利設(shè)施，政府重視。
