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新人教版高中英語必修3Unit 5 The Value of Money-Listening &Speaking教學(xué)設(shè)計
Step 4: Listen again and decide if the following statements are true (T) or false (F).1 It was the first time Chen Liyan's story was reported. T口 F口2 Chen found 10,000 yuan in a small plastic bag in Taiyuan railway station口 F口3 Wang Zheng apologized to Chen because he couldn't offer her more money. T口 F口4 Chen took out a large loan to cure her daughter, T口 F口5 Wang set up a fundraising website for Chen's daughter after Chen told him about her situation. T口 F口Step 5：After listening, discuss the questions.1 What kind of person do you think Chen Liyan is?Chen Liyan is generous and honest because she returned a large sum of money to the owner.2 Did Chen return the money because she didn't need it?No. She returned the money because it was the right thing to do. Evidence for this is that she refused to accept the reward money because she felt that it had not been earned. 3 Is it common for people to do what Chen did?It depends on the culture. In some countries it is quite common to return money that has been found. In other countries, people believe "Finders are keepers!" 4 How did Wang Zheng feel about the return of his money?He must have been very happy and relieved to have gotten his money back. We know this because he thanked Chen repeatedly and even offered her a reward.5 Why did Ma Dongbao tell Wang about Chen's family?He must have had great sympathy for Chen and her daughter and wanted to help them.'We know this because he arranged help for them. 6 How did the news reporter feel about Chen's actions?The news reporter felt that it showed that money wasn't the most important thing in life. We know this because the reporter told us that this is what Chen believes. and then said, “that's a great attitude to take."
新人教版高中英語必修3Unit 3 Diverse Cultures-Discovering Useful Structure教學(xué)設(shè)計
Step 4 PracticeRead the conversation. Find out which words have been left out.Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Any recommendations for places to visit?Linlin: Wow, cool! Guizhou is a province with a lot of cultural diversity. Places to visit...well, definitely the Huangguoshu Waterfall first.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have. Why ?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King.Justin: Really? Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages. You’ll find Chinese culture is much more diverse than you thought.Justin:Sounds great, thanks.Answers:Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Do you have any recommendations for places to visit?Linlin: Wow, that’s cool! Guizhou is a province with a lot of cultural diversity. What are some places to visit in Guizhou ? Well, definitely the Huangguoshu Waterfall is the first place to visit in Guizhou Province.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have heard of the Chinese novel Journey to the West . Why do you ask if I have heard of the Chinese novel Journey to the West?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King from Journey to the West.Justin: That’s really true? It’s Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages on your trip to Guizhou Province. You’ll find Chinese culture is much more diverse than you thought it was.Justin:This all sounds great, thanks.
新人教版高中英語必修3Unit 3 Diverse Cultures-Listening &Speaking＆Talking教學(xué)設(shè)計
1. In Picture 1 and Picture 2, where do you think they are from? How do you know?From their wearings, we can know they are from ethnic minority of China--- Miao and Dong.Picture 1, they are playing their traditional instrument lusheng in their traditional costumes.Picture 2. the girls are Miao because they wear their traditional costumes and silver accessory.2. In Picture 3, can you find which village it is? What time is it in the picture?It is Dong village. It is at night. Step 2 While-listeningJustin met a new friend while traveling in Guizhou. Listen to their conversation and complete the summaries below.Part 1Justin and Wu Yue watched some Miao people play the lusheng. The instrument has a history of over 3,000 years and it is even mentioned in the oldest collection of Chinese poetry. Then they watched the lusheng dance. Justin wanted to buy some hand-made silver/traditional accessories as souvenirs. He was told that the price will depend on the percentage of silver. Part 2They will go to a pretty Dong minority village called Zhaoxing. they will see the drum towers and the wind and rain bridges. They may also see a performance of the Grand Song of the Dong people.Step 3 Post-listening---TalkingWork in groups. Imagine Justin is telling some friends about his trip to Guizhou. One of you is Justin and the rest of you are his friends. Ask Justin questions about his trip and experience. The following expressions may help you.
新人教版高中英語必修3Unit 4 Space Exploration-Listening&Speaking&Talking教學(xué)設(shè)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-Discovering Useful Structure教學(xué)設(shè)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(jié)構(gòu)：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 5 The Value of Money- Discovering Useful Structure教學(xué)設(shè)計
Step 3 Meaning1. 過去將來時表示從過去某一時間來看將要發(fā)生的動作或存在的狀態(tài), 常用在賓語從句中。一般由“would/should +動詞原形”構(gòu)成。She hoped that they would meet again someday. 她希望將來有一天他們能再見面。2. was/were going to+動詞原形: 表示過去將要發(fā)生或很有可能發(fā)生的動作, 常用于口語中, 表示預(yù)言、意圖或者打算等。He was going to start work the following week. 他打算下星期開始工作。3. was/were about to do: 常用來表示即將發(fā)生的動作, “剛要/正要做……”。注意該結(jié)構(gòu)不與任何時間狀語連用。I felt that something terrible was about to happen. 我感到某種可怕的事情即將發(fā)生。4.was/were to do: 表示“曾計劃做某事”, 如果表示“本來計劃做某事, 動作沒實現(xiàn)”, 則需用 “was/were to have done”。She said she was to have told me about the accident. 她說她本來想告訴我關(guān)于事故的事。5.Start, go, come, leave, see, meet等動詞的過去進行時: 表示就過去某一時刻而言即將發(fā)生的動作。She was coming later. 她隨后就來。I had just put on my overcoat and was leaving to visit a friend of mine. 我剛穿上外套要去看我的一個朋友。
新人教版高中英語必修3Unit 5 The Value of Money-Listening &Speaking＆Talking教學(xué)設(shè)計
4. A：We’d like to have someone to say a word at the beginning to welcome the group.B：↙Who?A：We thought that you or Dr.Johnson might do it.B用降調(diào)說Who，其意思是問，對方想讓誰在開場時致歡迎詞。Step 6 Pronunciation---Practice1. Listen to the short conversation and mark the intonation with ↗, ↙ or ↙, ↗. Then discuss with a partner what they intend to convey by using different intonation.Owner: You know what ?↗ It’s a million-pound bank note↙.Waiter 1: Really ?↗(question)Waiter 2: Really !↙(unbelievable and surprised)Waiter 3: Really ?!↙↗(first question then surprised)2. Listen to the conversations. Underline the parts that are stressed and mark the intonation. Then talk about the implied meanings of the responses with different intonations. Listen again and repeat.1) Henry: It’s a nice suit.Owner: Oh, it’s perfect!↙(The intonation means it is very suitable for Henry.)2) Henry: Well, that’s very kind of you.Owner: Kind, sir ?↗(what you said is not right) No, it’s kind of you. You must come whenever you want and have whatever you like. Just having you sit here is a great honour !!↙(welcome you to come again)3)Henry:Well, to be honest, I have none. Oliver:(happily) What luck!(excited) Brother↗, what luck!↙(It means “Didn’t you hear it?”)Henry: Well, it may seem lucky to you but not to me!↗(angry) If this is your idea of some kind of joke, I don’t think it’s very funny. Now if you’ll excuse me, I ought to be on my way.↙(If so, I would leave.)Roderick: Please don’t go↙...(hope Henry can wait for a moment)Part B Viewing and Talking---Describe people’s changing attitudes in a film clipStep 1 Before-listening---Tell the filmYou are going to watch part of the film The Million Pound Bank Note. Look at these photos and guess what happens in the film.
新人教版高中英語必修3Unit 5 the value of money-Reading For Writing教學(xué)設(shè)計一
【參考范文】Narrator：(Henry is smiling as he leaves the restaurant. As he is walking down the street, he sees a sign for a place that cuts hair. He decides to get it cut. )H＝Henry；B＝Barber；R＝rude manH：Good afternoon, I'd like to get a cut, if I may. (The barber looks at Henry's hair and continues cutting another man's hair. )Er, I'd really like a haircut. As you can see it's much too long. B：(in a rude manner) Yes, I can see that. Indeed, I can. H：Fine, well I'll have a seat then. (He sits in one of the barber's chairs. The barber turns to look at Henry. )B：It's quite expensive here, you know！Are you sure you can afford it?H：Yes. I think so. (In comes the rude man. )R：Hey you there. I need a haircut quickly. Can you do me straightaway?B：All right, then, get in the chair and I'll see what I can do. R：Thank you. (sits down in one of the barber's chairs)H：Excuse me, but I was here first. Aren't you going to do my hair first?B：This man's in a hurry. H：Well so am I！I insist that you cut my hair first. B：OK, but I'll have to be quick. This gentleman is waiting. H：Thank you. (They both become quiet. After his hair is cut, the barber tells Henry how much he must pay. Henry shows the barber the bank note. )B：Why, Mr . . . (looks shocked)H：Adams. Henry Adams. I'm sorry, I don't have any change. R：You're that Mr Adams! Well，I'm glad I waited or I might never have known it was you. B：Why, Mr Adams, please don't worry！(wearing a big smile) Nothing to worry about！Nothing at all!Please come back any time, even if you only need too little hairs cut！It will be my honour to serve you!
人教版高中政治必修4第十二課實現(xiàn)人生的價值教案
有的學(xué)者還指出，要堅持集體主義還必須將集體主義的價值精神與社會主義市場經(jīng)濟的要求結(jié)合起來，批判地繼承計劃經(jīng)濟時代倡導(dǎo)的集體主義，合理地對其進行體系結(jié)構(gòu)的調(diào)整和內(nèi)容的更新，形成新的集體主義。與傳統(tǒng)的集體主義相比，這種新的集體主義應(yīng)具有如下兩個主要特點。其一，強調(diào)集體的出發(fā)點是為了維護集體成員的正當個人利益。傳統(tǒng)的集體主義具有片面強調(diào)集體至上性、絕對性的弊端；新的集體主義必須依據(jù)社會主義市場經(jīng)濟的現(xiàn)實要求，將集體應(yīng)當對個人承擔(dān)的義務(wù)加以科學(xué)的闡釋。真正的集體應(yīng)該維護各個集體成員的個人利益，實現(xiàn)組成集體的各個主體的自我價值。這種新型的集體主義是對社會主義市場經(jīng)濟條件下社會關(guān)系的真實反映，既與個人主義有本質(zhì)區(qū)別，也不同于傳統(tǒng)的集體主義。其二，要體現(xiàn)道德要求的先進性與廣泛性的統(tǒng)一。
人教版高中政治必修4第二課百舸爭流的思想教案
不可知論是否認人們認識世界或徹底改造世界的可能性的哲學(xué)學(xué)說。此概念首先由英國的赫胥黎(1825—1895)于1869年提出，不可知論的思想在古代就已產(chǎn)生，歐洲近代的主要代表是休謨和康德。其本質(zhì)是把人的感覺看作是主觀和客觀之間的屏障而不是橋梁，不承認在感覺之外有確實可靠的客觀外部世界的存在，不懂得認識過程中本質(zhì)與現(xiàn)象、有限與無限的辯證關(guān)系。對不可知論最有力的駁斥是實踐。有時不可知論一詞也用以專指針對宗教教義而提出的一種學(xué)說，認為上帝是否存在、靈魂是否不朽是不可知的。2．二元論二元論是認為世界有兩個本原的哲學(xué)學(xué)說，與一元論相對立，它把物質(zhì)和意識絕對對立起來，認為物質(zhì)和意識是兩個各自獨立、相互平行發(fā)展著的實體，誰也不產(chǎn)生誰，誰也不決定誰，都是世界的本原。它的觀點是錯誤的：它肯定精神不依賴于物質(zhì)而獨立存在，這本身就是唯心主義的觀點；它雖然承認物質(zhì)是獨立的本原，但在說明物質(zhì)和精神的關(guān)系時，又把精神說成是唯一具有能動性的力量，必然倒向唯心主義。主要代表人物是法國的笛卡兒和德國的康德。
人教版高中政治必修4第二課百舸爭流的思想精品教案
7、人總是按照自己對周圍世界和人生的理解做事。有人認為命由天定，因而身處困境只是消極等待、逆來順受；有人認為人定勝天，因而在困難面前積極奮爭、不屈不撓。以上材料說明（ ）A哲學(xué)源于人們對實踐的追問和對世界的思考B世界觀決定方法論，方法論體現(xiàn)著世界觀C哲學(xué)不等于自發(fā)的世界觀D哲學(xué)是關(guān)于世界觀的學(xué)說8、世界觀和方法論的關(guān)系是（）A世界觀和方法論相互決定B方法論決定世界觀，世界觀體現(xiàn)方法論 C世界觀決定方法論，方法論體現(xiàn)世界觀 D世界觀和方法論相互影響，相互決定9、下列關(guān)于哲學(xué)、世界觀、具體知識之間聯(lián)系的正確說法是（）A哲學(xué)是關(guān)于世界觀和具體知識的統(tǒng)一B哲學(xué)就是科學(xué)的世界觀和具體知識C哲學(xué)是關(guān)于世界觀的學(xué)說，是具體知識的概括和總結(jié)D哲學(xué)決定世界觀，世界觀決定具體知識10、下列對哲學(xué)的認識，不正確的是（）A哲學(xué)是關(guān)于世界觀的學(xué)說B哲學(xué)是世界觀和方法論的統(tǒng)一C哲學(xué)是理論化、系統(tǒng)化、科學(xué)化的世界觀D哲學(xué)是對具體知識的概括和總結(jié)
人教版高中地理必修3第二章第一節(jié)荒漠化的防治教案
1．根據(jù)下面的圖文資料，說明前蘇聯(lián)墾荒區(qū)土壤風(fēng)蝕的潛在自然背景。并說明人們的生產(chǎn)活動怎樣加劇了這個過程。點撥：對圖2.16的分析,要知道”墾荒地區(qū)”處于亞歐大 陸的中部偏北的地方,雖處于西風(fēng)帶但遠離水汽來源,故降水稀少。從其周邊的內(nèi)陸湖“里?！薄ⅰ跋毯！钡姆植继攸c，可以推斷，這是一個半荒漠向干草原的過渡地帶，是一個生態(tài)環(huán)境比較脆弱的地區(qū)，其自然地理狀況必定是寒冷、干旱、大風(fēng)。2．20世紀60年代中期以來，前蘇聯(lián)在總結(jié)大規(guī)模墾荒經(jīng)驗教訓(xùn)的基礎(chǔ)上，采取了一系列綜合防護措施。仔細分析這些措施，你認為該地區(qū)防治荒漠化(土壤風(fēng)蝕)的主要方向是什么?點撥：要善于將所列四項保護措施逐條進行分析，而后進行歸納，不難找出它們之間的共同的東西，那就是“抗旱、防風(fēng)、保水、保土、保肥”。3．根據(jù)所學(xué)知識，你認為前蘇聯(lián)墾荒區(qū)防治荒漠化的對策與措施可以被我國的哪些地區(qū)所借鑒。
人教版高中地理必修3第四章第二節(jié)區(qū)域工業(yè)化與城市化教案
從右圖“進出口貿(mào)易占全國的比重”可看出，珠三角地區(qū)的外向型經(jīng)濟特征很明顯，但正在緩慢的發(fā)生轉(zhuǎn)變；而長三角地區(qū)的外貿(mào)依存度在10年內(nèi)迅速增長。由此可見，珠三角地區(qū)城市化過程，是伴隨著該地特殊的經(jīng)濟發(fā)展相對自發(fā)地快速推進，缺乏宏觀而理性的規(guī)劃。閱讀通過此閱讀材料，使學(xué)生大致了解以下內(nèi)容深圳作為珠江三角洲地區(qū)迅速城市化的一個典型代表，到目前為止，對其未來發(fā)展道路的構(gòu)想，主要集中在：如何聯(lián)合和依托臨近區(qū)域、聯(lián)合優(yōu)勢資源，擴大發(fā)展空間；如何明確功能，重新定位，合理分工，突出特色?；顒娱L江三角洲地區(qū)城市的協(xié)調(diào)發(fā)展1．讀圖4．28，如果按人口規(guī)模>500萬人、100萬～500萬人、50萬～100萬人、20萬～50萬人和<20萬人將城市分為五級的話，分析長江三角洲地區(qū)城市的等級規(guī)模結(jié)構(gòu)是否合理，這對其城市的協(xié)調(diào)發(fā)展有何影響?
人教版高中地理必修3第五章第二節(jié)產(chǎn)業(yè)轉(zhuǎn)移教案
1．閱讀圖5．16，說明產(chǎn)業(yè)向國外轉(zhuǎn)移對日本經(jīng)濟的不利影響。點撥：圖5．16直觀的顯示了產(chǎn)業(yè)轉(zhuǎn)移對日本經(jīng)濟的不利影響：形成“產(chǎn)業(yè)轉(zhuǎn)移出去的多，轉(zhuǎn)移進來的少→國內(nèi)生產(chǎn)投資不足，生產(chǎn)困難→市場萎縮→產(chǎn)業(yè)向外轉(zhuǎn)移，外資不愿進入”的惡性循環(huán)。2．盡管重化工業(yè)的環(huán)境污染比較嚴重，但是卻能為工業(yè)化的發(fā)展提供堅實的基礎(chǔ)，因此成為發(fā)達工業(yè)的象征。日本、韓國的經(jīng)濟發(fā)展都經(jīng)歷了由輕工業(yè)(勞動密集型)到重化工業(yè)(資源密集型和資金密集型)到高科技工業(yè)(技術(shù)密集型)的階段。(1）為什么日本、韓國在重點發(fā)展重化工業(yè)之前，要先發(fā)展勞動密集型工業(yè)?點撥：重化工業(yè)的發(fā)展一方面需要有一定的工業(yè)基礎(chǔ)和技術(shù)工人，另一方面需要投入大量的資金，先發(fā)展勞動密集型工業(yè)有利于利用勞動力資源豐富且廉價的優(yōu)勢，積累資金和造就產(chǎn)業(yè)工人。所以，勞動力豐富的發(fā)展中國家或地區(qū)的工業(yè)化往往從優(yōu)先發(fā)展勞動密集型工業(yè)開始。
部編版英語七年級上總復(fù)習(xí)知識點教案
2.陌生人初次見面打招呼What’s your name?(What’s = What is)Alan./I’m Alan./My name is AlanMiller.(first name,last name = family name)Are you Helen?Yes, I am.Niceto meet you.(這里的Iam 不能縮寫)Nice to meetyou, too.What’s his name?His name isJim.Is she Linda?
人教版新課標高中物理必修2生活中的圓周運動教案2篇
思考：洗衣機脫水時轉(zhuǎn)速高時容易甩干衣物，還是轉(zhuǎn)速低時容易甩干衣物？(2) 制作棉花糖的原理內(nèi)筒與洗衣機的脫水筒相似，里面加入白砂糖，加熱使糖熔化成糖汁。內(nèi)筒高速旋轉(zhuǎn)，黏稠的糖汁就做離心運動，從內(nèi)筒壁的小孔飛散出去，成為絲狀到達溫度較低的外筒，并迅速冷卻凝固，變得纖細雪白，像一團團棉花。5.離心現(xiàn)象的防止在水平公路上行駛的汽車，轉(zhuǎn)彎時所需的向心力是由車輪與路面的靜摩擦力提供的。如果轉(zhuǎn)彎時速度過大，所需向心力F大于最大靜摩擦力Fmax，汽車將做離心運動而造成交通事故。因此，在公路彎道處，車輛行駛不允許超過規(guī)定的速度。當高速轉(zhuǎn)動的砂輪或者飛輪內(nèi)部分子間相互作用力不足以提供所需向心力時，離心運動就會使他們破裂，甚至釀成事故。
人教版高中歷史必修2戰(zhàn)后資本主義的新變化教案2篇
1、知識與能力：（1）識記：20 世紀 50 ～70 年代國家干預(yù)經(jīng)濟的政策、 70年代的經(jīng)濟“滯脹”“混合經(jīng)濟”；福利國家；第三產(chǎn)業(yè)的蓬勃發(fā)展；“新經(jīng)濟”的出現(xiàn)；（2）理解當代資本主義的新變化的實質(zhì)是資本主義的自我揚棄，是在資本主義內(nèi)部的自我改善，是資本主義生產(chǎn)關(guān)系的自我調(diào)整；（3）掌握以美國為代表的主要資本主義國家在戰(zhàn)后的經(jīng)濟發(fā)展歷程，分析各國經(jīng)濟發(fā)展的共同原因。2、過程與方法：（1）引導(dǎo)學(xué)生利用教材和相關(guān)史料，培養(yǎng)歸納、再現(xiàn)歷史事件的能力，提高學(xué)生的歷史思維能力；通過討論提高學(xué)生的思辨能力，培養(yǎng)學(xué)生全面客觀地分析問題的思維方式。（2）學(xué)生通過觀察1977年發(fā)達國家國有經(jīng)濟比重表，懂得提取有效信息、分析數(shù)據(jù)的能力；（3）學(xué)生通過思考討論西方福利制度的利弊，培養(yǎng)全面、客觀分析和比較歷史現(xiàn)象，辯證地觀察和分析歷史問題的能力。
人教版新課標高中物理必修2機械能守恒定律教案2篇
（二）進行新課1、動能與勢能的相互轉(zhuǎn)化演示實驗1：如右圖，用細線、小球、帶有標尺的鐵架臺等做實驗。把一個小球用細線懸掛起來，把小球拉到一定高度的A點，然后放開，小球在擺動過程中，重力勢能和動能相互轉(zhuǎn)化。我們看到，小球可以擺到跟A點等高的C點，如圖甲。如果用尺子在某一點擋住細線，小球雖然不能擺到C點，但擺到另一側(cè)時，也能達到跟A點相同的高度，如圖乙。問題：這個小實驗中，小球的受力情況如何？各個力的做功情況如何？這個小實驗說明了什么？學(xué)生觀察演示實驗，思考問題，選出代表發(fā)表見解。小球在擺動過程中受重力和繩的拉力作用。拉力和速度方向總垂直，對小球不做功；只有重力對小球能做功。實驗證明，小球在擺動過程中重力勢能和動能在不斷轉(zhuǎn)化。在擺動過程中，小球總能回到原來的高度?？梢姡亓菽芎蛣幽艿目偤捅３植蛔?。即機械能保持不變。
人教版新課標高中物理必修2太陽與行星間的引力教案2篇
【學(xué)習(xí)內(nèi)容分析】在行星運動規(guī)律與萬有引力定律兩節(jié)內(nèi)容之間安排本節(jié)內(nèi)容，是為了更突出發(fā)現(xiàn)萬有引力定律的這個科學(xué)過程。如果說上一節(jié)內(nèi)容是從運動學(xué)角度描述行星運動的話，那么，本節(jié)內(nèi)容是從動力學(xué)角度來研究行星運動的，研究過程是依據(jù)已有規(guī)律進行的演繹推理過程。教科書在尊重歷史事實的前提下，通過一些邏輯思維的鋪墊，讓學(xué)生以自己現(xiàn)有的知識基礎(chǔ)身于歷史的背景下，經(jīng)歷一次“發(fā)現(xiàn)”萬有引力的過程，因此體驗物理學(xué)研究問題的方法就成為主要的教學(xué)目標。【學(xué)情分析】在學(xué)太陽對行星的引力之前，學(xué)生已經(jīng)對力、重力、向心力、加速度、重力加速度、向心加速度等概念有了較好的理解，并且掌握自由落體運動和圓周運動等運動規(guī)律，能熟練運用牛頓運動定律解決動力學(xué)問題。已經(jīng)完全具備深入探究和學(xué)習(xí)萬有引力定律的起點能力。所以在推導(dǎo)太陽與行星運動規(guī)律時，教師可以要求學(xué)生自主地運用原有的知識進行推導(dǎo)，并要求說明每一步推理的理論依據(jù)是什么，教師僅在難點問題上做適當?shù)狞c撥。
人教版新課標高中物理必修2能量守恒定律與能源教案2篇
世界能源問題的解決途徑是什么?能源，是人類敕以生存和進行生產(chǎn)的不可缺少的資源．近年來，隨著生產(chǎn)力的發(fā)展和能源消費的增長．能源問題已被列為世界上研究的重大問題之一．解決世界能源問題的根本途徑，主要有兩個方面：其一是廣泛開源，其二是認真節(jié)流．所謂開源，就是積極開發(fā)和利用各種能源．在繼續(xù)加緊石油勘探和尋找新的石油產(chǎn)地的同時，積極開發(fā)豐富的煤炭資源，還要大力開發(fā)水能，生物能等常規(guī)能源，加強核能、太陽能，風(fēng)能、沼氣，海洋能，地?zé)崮芤约捌渌鞣N新能源的研究和利用，從而不斷擴大人類的能源資源的種類和來源．所謂節(jié)流，就是要大力提倡節(jié)約能源．節(jié)能是世界上許多國家關(guān)心和研究的重要課題，甚至有人把節(jié)能稱為世界的“第五大能源”，與煤、石油和天然氣、水能、核能等并列．在節(jié)能方面，在有計劃地控制人口增長的同時，重點要發(fā)揮先進科學(xué)技術(shù)的優(yōu)勢，提高各國的能源利用效率．