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新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading for Writing教學(xué)設(shè)計(jì)二
⑦在我看來(lái), 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(yǔ)必修3Unit 5 The Value of Money- Discovering Useful Structure教學(xué)設(shè)計(jì)
Step 3 Meaning1. 過(guò)去將來(lái)時(shí)表示從過(guò)去某一時(shí)間來(lái)看將要發(fā)生的動(dòng)作或存在的狀態(tài), 常用在賓語(yǔ)從句中。一般由“would/should +動(dòng)詞原形”構(gòu)成。She hoped that they would meet again someday. 她希望將來(lái)有一天他們能再見(jiàn)面。2. was/were going to+動(dòng)詞原形: 表示過(guò)去將要發(fā)生或很有可能發(fā)生的動(dòng)作, 常用于口語(yǔ)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(kāi)始工作。3. was/were about to do: 常用來(lái)表示即將發(fā)生的動(dòng)作, “剛要/正要做……”。注意該結(jié)構(gòu)不與任何時(shí)間狀語(yǔ)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(jì)劃做某事”, 如果表示“本來(lái)計(jì)劃做某事, 動(dòng)作沒(méi)實(shí)現(xiàn)”, 則需用 “was/were to have done”。She said she was to have told me about the accident. 她說(shuō)她本來(lái)想告訴我關(guān)于事故的事。5.Start, go, come, leave, see, meet等動(dòng)詞的過(guò)去進(jìn)行時(shí): 表示就過(guò)去某一時(shí)刻而言即將發(fā)生的動(dòng)作。She was coming later. 她隨后就來(lái)。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(gè)朋友。
新人教版高中英語(yǔ)必修3Unit 5 The Value of Money-Listening &Speaking＆Talking教學(xué)設(shè)計(jì)
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(shuō)Who，其意思是問(wèn)，對(duì)方想讓誰(shuí)在開(kāi)場(chǎng)時(shí)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(yǔ)必修3Unit 5 The Value of Money-Listening &Speaking教學(xué)設(shè)計(jì)
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(yǔ)必修3Unit 5 The value of money-Reading and Thinking教學(xué)設(shè)計(jì)二
? Could you offer me some kind of work here?? I don’t want your charity, I just want an honest job.? Careless: I landed in Britain by accident.Step 7:Consolidation.? Find Henry? Roderick and Oliver were I .making a bet when they saw Henry, a poor young man. ? Know Henry? About a month ago, Henry was sailing and later he found himself carried out to sea by a strong wind. Fortunately, he 2.was spotted by a ship. And it was the ship that brought him to 3.England? Offer money to Henry ? Oliver and Roderick gave Henry a letter and told him that there was money in it. They 4.persuaded him to accept it, and made him 5.promise that it wouldn't be opened until 2 o'clock.Step 8：Language pointsa large amount of: a large quantity of; a great deal ofe.g. They bought a large amount of furniture before they moved their new house.make a bet: make an arrangement to risk money, etc. on an event of which the result is doubtful.e.g. We made a bet on the result of the match.permit sb to do something: allow somebody to do somethinge.g. My mother doesn’t permit me to ride in the street after it rained.by accident: as a result of chancee.g. I only found it by accident.stare at: look at somebody or something with the eyes wide open in a fixed gaze( in astonishment, wonder, fear, etc)to be honest: to tell you the truth; to be franke.g. To be honest, I don’t think we have a chance of winning.Step7 Homework:What do you think will happen to Henry? Will the bank-note help him or get him into trouble?
新人教版高中英語(yǔ)必修3Unit 5 The Value of Money-Reading for Writing教學(xué)設(shè)計(jì)二
2. 您能看到, 我頭發(fā)太長(zhǎng)了。You can see that my hair is much too long.3. 無(wú)論什么時(shí)候, 只要您想回來(lái)就回來(lái)。Please come back whenever you want.4. 您僅有很少的頭發(fā)要理! You only have too little hair to cut !5. 為您服務(wù)是我的榮幸！It is my honour to serve you!Step 9 Writing(Henry is walking down the street when he sees a sign for a place that cuts hair. He decides to have it cut. )H=Henry B=BarberH: Good afternoon, I’d like to have my hair 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. (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. B: Please don’t worry! (wearing a big smile) Nothing to worry about! Nothing at all! Please come back whenever you want, even if you only have too little hair to cut! It will be my honour to serve you!Step 10 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1. Are all the elements of a play included and in good order ?2. Do the character use suitable language ?3. Are the stage directions clear and useful ?4. Is the plot clear and exciting enough ?
人教版高中地理必修1營(yíng)造地表形態(tài)的力量教案
【導(dǎo)入新課】一位在青藏高原上跋涉的旅行者，途中休息時(shí)從路邊巖層中隨手拿起一塊小石 頭玩賞時(shí)受小石子的紋路的吸引，他不禁仔細(xì)觀瞧，吃驚地發(fā)現(xiàn)這竟是一個(gè)古代海洋生物化石！近年來(lái)，人們?cè)谂_(tái)灣海 峽海底某些地方發(fā)現(xiàn)有古代森林的遺跡。這些發(fā)現(xiàn)告訴我們什么？ 【學(xué)生討論回答】略。 【教師總結(jié)概括】地殼和宇宙間一切物質(zhì)一樣，處在不停的運(yùn)動(dòng)變化之中。那么地表千姿百態(tài)的形態(tài)是如何營(yíng)造的呢？這就是我們這節(jié)課要解決的課題【板書(shū)】第四章：地表形態(tài)的塑造 第一節(jié)：營(yíng)造地表形態(tài)的力量【提問(wèn)】哪位同學(xué)能夠例舉營(yíng)造地表形態(tài)的力量改變地表面貌的實(shí)例？ （學(xué)生討論、回答問(wèn)題。教師在副板書(shū)上一一記錄。） 【過(guò)渡】營(yíng)造地表形態(tài)的力量具體劃分有很多種，但歸納起來(lái)看可以劃分為兩種，即內(nèi)力作用和外力作用，首先我們來(lái)看一下內(nèi)力作用．【板書(shū)】一、內(nèi)力作用 【指導(dǎo)讀書(shū)】請(qǐng)大家閱讀教材Ｐ74第一段和案例1，思考：
人教版高中地理必修1自然地理環(huán)境的整體性教案
1．生產(chǎn)功能：合成有機(jī)物的能力2．平衡功能：使自然地理要素的性質(zhì)保持穩(wěn)定的能力【教師講解】生產(chǎn)功能主要依賴于光合作用。在光合作用過(guò)程中，植物提供葉綠素，大氣提供熱量和二氧化碳，土壤及水圈、巖石圈提供水分及無(wú)機(jī)鹽。光合作用通過(guò)物質(zhì)和能量的交換，將生物、大氣、水、土壤、巖石等地理要素統(tǒng)一在一起，在一定的條件下，生產(chǎn)出有機(jī)物。由此可見(jiàn)，生產(chǎn)功能是自然環(huán)境的整體功能而非單個(gè)地理要素的功能。大氣本身不具有減緩二氧化碳增加的功能，但是，在自然地理環(huán)境中，通過(guò)各地理要素的相互作用，卻能消除部分新增的二氧化碳的能力，既為自然地理環(huán)境的平衡功能。請(qǐng)大家閱讀教材P94活動(dòng)，利用平衡功能的原理，解釋一定范圍內(nèi)各物種的數(shù)量基本恒定這一現(xiàn)象。【學(xué)生討論回答】略。（可參考教參）【轉(zhuǎn)折】自然地理環(huán)境各要素每時(shí)每刻都在演化，如我們熟知的氣候變化、地貌變化等。各個(gè)要素的發(fā)展演化是統(tǒng)一的，一個(gè)要素的演化伴隨著其他各個(gè)要素的演化。
人教版高中地理必修2如何看待農(nóng)民工現(xiàn)象精品教案
盡管如此，農(nóng)民工作為一個(gè)新的社會(huì)階層，其獨(dú)特的經(jīng)濟(jì)需求和政治訴求應(yīng)該得到充分的尊重。雖然農(nóng)民工的“根”還在農(nóng)村，但是他們已經(jīng)脫胎換骨，日益成長(zhǎng)為一個(gè)迫切需要社會(huì)認(rèn)可的新興階層。3.農(nóng)民工處于何種生存境況？作為“廉價(jià)勞動(dòng)力”，工資水平低，拖欠時(shí)有發(fā)生。作為“超時(shí)勞動(dòng)力”，工作時(shí)間極長(zhǎng)，超負(fù)荷從事繁重工作。作為“高危勞動(dòng)力”，社會(huì)保障缺失，各種安全事故頻繁。4.農(nóng)民工問(wèn)題有多么重要？農(nóng)民工問(wèn)題關(guān)系到農(nóng)業(yè)增效、農(nóng)民增收和農(nóng)村繁榮。農(nóng)民工問(wèn)題關(guān)系到工業(yè)化、城鎮(zhèn)化和“以工補(bǔ)農(nóng)、以城促鄉(xiāng)”。農(nóng)民工問(wèn)題關(guān)系到社會(huì)主義和諧社會(huì)建設(shè)。5.解決農(nóng)民工問(wèn)題應(yīng)該做些什么？構(gòu)建城鄉(xiāng)一體化就業(yè)體系。健全農(nóng)民工權(quán)益保障制度。強(qiáng)化農(nóng)民工輸出地和輸入地培訓(xùn)。穩(wěn)妥解決農(nóng)民工戶籍問(wèn)題。改進(jìn)對(duì)農(nóng)民工的管理和服務(wù)。
人教版高中地理必修2交通運(yùn)輸布局及其影響精品教案
師：南昆鐵路的起點(diǎn)和終點(diǎn)分別是何處? 生：南昆鐵路東起廣西南寧，西到云南的昆明。 師：南寧和昆明的海拔分別大致是多少?南昆鐵路沿途經(jīng)過(guò)哪些主要的地形區(qū)? 生：南寧的海拔100～200米，而昆明的海拔1000～2000米，兩地海拔差異很大。從南寧到昆明，經(jīng)過(guò)南寧盆地，然后翻山越嶺到達(dá)云貴高原。 投影資料:南昆鐵路所經(jīng)地區(qū)地形險(xiǎn)峻、地質(zhì)條件復(fù)雜，通過(guò)七度以上高烈度地震 242千米，可溶l性巖IK 375千米，膨脹：L~146千米，被稱為“地層博覽”。該鐵路從海拔78米的南寧盆地上升到海拔2000多米的云貴高原，工程難度是鐵路建設(shè)史上前所未有的。師：南昆鐵路的建設(shè)有什么意義? 生：交通運(yùn)輸?shù)牟季质茏匀?、?jīng)濟(jì)、社會(huì)和技術(shù)等因素的綜合影響和制約。課堂小結(jié):今天這節(jié)課，我們需要同學(xué)們了解五種主要的交通運(yùn)輸方式的特點(diǎn)，能結(jié)合運(yùn)輸貨物的特點(diǎn)、運(yùn)輸量等對(duì)交通運(yùn)輸方式作出合理的選擇。
人教版高中地理必修2綠色食品知多少精品教案
生1：加強(qiáng)對(duì)綠色食品的宣傳和扶持力度。當(dāng)前的形勢(shì)迫切要求我們發(fā)展綠色食品，因?yàn)榫G色食品是真正實(shí)現(xiàn)可持續(xù)發(fā)展的，做到了發(fā)展經(jīng)濟(jì)和環(huán)境保護(hù)相結(jié)合，而且有利于增進(jìn)人民身體健康。但目前綠色食品在市場(chǎng)上難成氣候，主要是宣傳和扶持不夠。生2：綠色食品對(duì)環(huán)境、生長(zhǎng)過(guò)程、加工過(guò)程以及運(yùn)輸?shù)冗^(guò)程都有很嚴(yán)格的要求，很多環(huán)境相對(duì)優(yōu)良的地區(qū)都是邊遠(yuǎn)落后地區(qū)，必須給予政策上的扶持和優(yōu)惠，才能降低成本，市場(chǎng)發(fā)展前景才會(huì)更加廣闊?；顒?dòng)與探究對(duì)當(dāng)?shù)鼐G色食品市場(chǎng)情況作調(diào)查并初步分析。活動(dòng)的實(shí)施過(guò)程：1．確定調(diào)查研究的目標(biāo)并制定調(diào)查研究的計(jì)劃。市場(chǎng)調(diào)查要深入廣大消費(fèi)者，可以去市場(chǎng)上做調(diào)查，‘對(duì)象包括消費(fèi)者和經(jīng)營(yíng)者。形式可以是問(wèn)卷，也可以是現(xiàn)場(chǎng)采訪。弄清楚被調(diào)查者對(duì)綠色食品的態(tài)度，是否了解食用綠色食品的意義，是否懂得鑒別綠色食品等。對(duì)象力求涉及各個(gè)年齡段，多種職業(yè)。2．對(duì)問(wèn)卷調(diào)查進(jìn)行整理、分析，得出結(jié)論。
人教版高中地理必修2交通運(yùn)輸布局變化的影響精品教案
教師還可結(jié)合歷史材料做補(bǔ)充說(shuō)明：如乾隆皇帝下江南、康熙微服私訪曾幾下?lián)P州。又如，地處山西高原中部的平遙、祁縣幾個(gè)縣城，晉商的興起時(shí)是重要的驛站，是南來(lái)北往的必經(jīng)之地，當(dāng)時(shí)山西的票號(hào)也馳名全國(guó)。后來(lái)，由于隴海線、京廣線的建成通車和晉商的日趨衰落，這些城市發(fā)展也很緩慢。二.交通運(yùn)輸對(duì)商業(yè)網(wǎng)點(diǎn)分布的影響教師：商業(yè)網(wǎng)點(diǎn)與人們的生活密切相關(guān)。人們可以通過(guò)商業(yè)網(wǎng)點(diǎn)滿足日常的生活需要；商業(yè)網(wǎng)點(diǎn)也盡可能多地吸引購(gòu)物者，以提高商品流通的經(jīng)濟(jì)效益。由于受自然條件的影響，在不同的地形區(qū)，商業(yè)網(wǎng)點(diǎn)的形成條件、密度、效益和組織形式是不同的。展示：投影片圖5.29、圖5.30分別介紹山區(qū)和平原的自然條件。分析：從圖中我們可以看出：山區(qū)的等高線密集，說(shuō)明地勢(shì)起伏大，地形坡度大，由于山區(qū)的人口分布較分散且人口密度小，故山區(qū)的商業(yè)網(wǎng)點(diǎn)在分布上也比較分散且沿河谷地帶分布。那么，平原地區(qū)的商業(yè)網(wǎng)點(diǎn)在形成、密度、效益和組織形式上相比較，有什么區(qū)別呢?
人教版高中地理必修2交通運(yùn)輸布局變化的影響教案
北京的商業(yè)中心分布和變化大致分三個(gè)階段：鐘鼓樓市場(chǎng)、三足鼎立格局形成、環(huán)路沿線商業(yè)中心出現(xiàn)。相對(duì)應(yīng)的交通變化，鐘鼓樓市場(chǎng)衰退與大運(yùn)河運(yùn)輸?shù)匚凰ヂ洹⑦\(yùn)輸方式的變化密切相關(guān)，后兩個(gè)階段與城市交通干線形態(tài)變化緊密聯(lián)系。3．交通線路的改變與集鎮(zhèn)的繁榮或衰落。有的集鎮(zhèn)因位于河道航運(yùn)的終點(diǎn)而商業(yè)繁盛；當(dāng)險(xiǎn)灘被清除，航道向前延伸時(shí)，集鎮(zhèn)的這種集散轉(zhuǎn)運(yùn)地位隨之消失，商業(yè)逐漸衰落。例如：陜西省勉縣的長(zhǎng)林鎮(zhèn)完全退化為單純的居民點(diǎn)?！菊n堂小結(jié)】今天這節(jié)課我們主要學(xué)習(xí)了交通布局變化帶來(lái)的對(duì)聚落形態(tài)的影響和對(duì)商業(yè)網(wǎng)點(diǎn)分布的影響。請(qǐng)同學(xué)們將今天所學(xué)的知識(shí)結(jié)合我們的生活實(shí)際，能對(duì)本地區(qū)的交通發(fā)展帶來(lái)的變化有所了解，為今后家鄉(xiāng)發(fā)展獻(xiàn)計(jì)獻(xiàn)策。
人教版高中地理必修2城市內(nèi)部空間結(jié)構(gòu)精品教案
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ā＃?）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。3、城市內(nèi)部空間結(jié)構(gòu)的形成和變化
人教版高中地理必修2不同等級(jí)城市的服務(wù)功能教案
1、 前提條件：①環(huán)境幾乎一樣的平原地區(qū)，人口分布均勻2、 ②區(qū)域的運(yùn)輸條件一致，影響運(yùn)輸?shù)奈┮灰蛩厥蔷嚯x。城市六邊形服務(wù)范圍形成過(guò)程。（理解）a．當(dāng)某一貨物的供應(yīng)點(diǎn)只有少數(shù)幾個(gè)時(shí)，為了避免競(jìng)爭(zhēng)、獲取最大利潤(rùn)，供應(yīng)點(diǎn)的距離不會(huì)太近，它們的服務(wù)范圍都是圓形的。 b．在利潤(rùn)的吸引下，不斷有新的供應(yīng)點(diǎn)出現(xiàn)，原有的服務(wù)范圍會(huì)因此而縮小。這時(shí)，該貨物的供應(yīng)處于飽和。每個(gè)供應(yīng)點(diǎn)的服務(wù)范圍仍是圓形的，并彼此相切c．如果每個(gè)供應(yīng)點(diǎn)的服務(wù)范圍都是圓形相切卻不重疊的話，圓與圓之間就會(huì)存在空白區(qū)。這里的消費(fèi)者如果都選擇最近的供應(yīng)點(diǎn)來(lái)尋求服務(wù)的話，空白區(qū)又可以分割咸三部分，分別屬于三個(gè)離其最近的供應(yīng)點(diǎn)。[思考]①圖2．15中城市有幾個(gè)等級(jí)？②找出表示每一等級(jí)六邊形服務(wù)范圍的線條顏色？③敘述不同等級(jí)城市之間服務(wù)范圍及其相互關(guān)系？3、理論基礎(chǔ)：德國(guó)南部城市4、意義：運(yùn)用這種理論來(lái)指導(dǎo)區(qū)域規(guī)劃、城市建設(shè)和商業(yè)網(wǎng)點(diǎn)的布局。1、 應(yīng)用——“荷蘭圩田居民點(diǎn)的設(shè)置”。
人教版高中地理必修2不同等級(jí)城市的服務(wù)功能精品教案
學(xué)生探究案例：找出不同等級(jí)城市的數(shù)目與城鎮(zhèn)級(jí)別的關(guān)系、城鎮(zhèn)的分布與城鎮(zhèn)級(jí)別的關(guān)系并試著解釋原因。在此基礎(chǔ)上，指導(dǎo)學(xué)生一步步閱讀書(shū)上的閱讀材料，首先說(shuō)明這是德國(guó)著名的經(jīng)濟(jì)地理學(xué)家克里斯泰勒對(duì)德國(guó)南部城市等級(jí)體系研究得出的中心地理論，他是在假設(shè)土壤肥力相等、資源分布均勻、沒(méi)有邊界的平原上，交通條件一致、消費(fèi)者收入及需求一致、人們就近購(gòu)買(mǎi)貨物和服務(wù)的情況下得出的理想模式。然后指導(dǎo)學(xué)生閱讀圖2.14下文字說(shuō)明，理解城市六邊形服務(wù)范圍形成過(guò)程。指導(dǎo)學(xué)生讀圖2.15，找出圖中城市的等級(jí)、每一等級(jí)六邊形服務(wù)范圍并敘述不同等級(jí)城市之間服務(wù)范圍及其相互關(guān)系，從而得出不同等級(jí)城市的空間分布規(guī)律，六邊形服務(wù)范圍，層層嵌套的理論模式。給出荷蘭圩田空白圖，讓學(xué)生應(yīng)用上面的理論規(guī)劃設(shè)計(jì)居民點(diǎn)并說(shuō)出理由，再和教材上的規(guī)劃進(jìn)行對(duì)照。然后給出長(zhǎng)三角地區(qū)城市分布圖和各城市人口數(shù)，讓學(xué)生對(duì)這些城市進(jìn)行分級(jí)，概括每一級(jí)城市的服務(wù)功能、統(tǒng)計(jì)每一等級(jí)城市的數(shù)目以及彼此間的平均距離，總結(jié)城市等級(jí)與服務(wù)范圍、空間分布的關(guān)系？
人教版高中地理必修2北京的自行車是多了還是少了精品教案
提問(wèn)：城市環(huán)境污染源主要有哪些？有些同學(xué)基本同意自行車多是加劇南京空氣污染的間接原因，你同意他們的觀點(diǎn)嗎？在學(xué)生回答的基礎(chǔ)上，教師進(jìn)行歸納小結(jié)：工業(yè)和交通是城市環(huán)境的主要污染源。而自行車是一種綠色交通工具，既環(huán)保又經(jīng)濟(jì)。只有當(dāng)它在某些機(jī)動(dòng)車和非機(jī)動(dòng)車不分的地段，影響車輛行駛速度的時(shí)候，它才可能成為加劇空氣污染的間接原因。問(wèn)：那我們針對(duì)交通工具對(duì)環(huán)境造成的影響，有什么解決方法嗎？歸納小結(jié)：? 實(shí)施減少汽車尾氣污染的技術(shù)措施? 加強(qiáng)道路綠化? 合理規(guī)劃城市道路，提高車速? 制定相關(guān)法規(guī)嚴(yán)禁各種車輛違規(guī)鳴喇叭? 在噪音嚴(yán)重的地區(qū)設(shè)置先進(jìn)的隔音設(shè)施總結(jié)：通過(guò)前面的分析我們知道了自行車過(guò)多并不是造成北京交通擁擠的主要原因，但自行車多并且不遵守交通規(guī)則的確是造成交通擁堵的一個(gè)原因。從這方面來(lái)講，在一些混合車道地段，自行車是造成空氣污染加劇的間接原因。那么在北京到底是應(yīng)該鼓勵(lì)自行車的發(fā)展還是限制自行車的發(fā)展呢？
人教版高中地理必修3地理環(huán)境對(duì)區(qū)域發(fā)展的影響教案
(1)下面列出的是我國(guó)南北方傳統(tǒng)民居的差異，分析形成這些差異的自然原因：——北方民居正南正北的方位觀比南方強(qiáng)；——北方民居的墻體嚴(yán)實(shí)厚重，南方民居的墻體輕??；——從北到南，民居的屋頂坡度逐漸增大，房檐逐漸加寬，房屋進(jìn)深和高度逐漸加大。(2)下面列出的是我國(guó)南北方城市住宅摟的差異，分析導(dǎo)致這些差異的自然原因：——如果不考慮地價(jià)、建筑材料等因素，建同等面積的住房，北方的建筑成本比南方高 ；——建同樣高度的多幢樓房，北方樓房的南北間距比南方大。點(diǎn)撥：本活動(dòng)要求學(xué)生了解由于地理環(huán)境的差異造成南北方建筑物特點(diǎn)的不同，并由此認(rèn)識(shí)地理環(huán)境 差異對(duì)人們生活的影響。（1）比較而言，北方的冬季寒冷而漫長(zhǎng)，南方的夏季濕熱而漫長(zhǎng)。為了在冬季充分利用太陽(yáng)光照和熱量，北方民居正南正北的方位觀比南方強(qiáng)。北方民居的墻體嚴(yán)實(shí)厚重，利用在冬季保溫御寒；南方民居的墻體輕薄，利于在夏季通風(fēng)透氣。從北到南，年降水量逐漸增大，民居的屋頂坡度也逐漸增大（利于排水） ；隨著對(duì)保溫要求的降低和對(duì)通風(fēng)納涼要求的提高，民居的屋檐逐漸加寬，房屋進(jìn)深和高度逐漸加大。
人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的概念 (1) 教學(xué)設(shè)計(jì)
新知探究我們知道，等差數(shù)列的特征是“從第2項(xiàng)起，每一項(xiàng)與它的前一項(xiàng)的差都等于同一個(gè)常數(shù)” 。類比等差數(shù)列的研究思路和方法，從運(yùn)算的角度出發(fā)，你覺(jué)得還有怎樣的數(shù)列是值得研究的？1.兩河流域發(fā)掘的古巴比倫時(shí)期的泥版上記錄了下面的數(shù)列:9,9^2,9^3,…,9^10; ①100,100^2,100^3,…,100^10; ②5,5^2,5^3,…,5^10. ③2.《莊子·天下》中提到：“一尺之錘，日取其半，萬(wàn)世不竭.”如果把“一尺之錘”的長(zhǎng)度看成單位“1”，那么從第1天開(kāi)始，每天得到的“錘”的長(zhǎng)度依次是1/2,1/4,1/8,1/16,1/32,… ④3.在營(yíng)養(yǎng)和生存空間沒(méi)有限制的情況下，某種細(xì)菌每20 min 就通過(guò)分裂繁殖一代，那么一個(gè)這種細(xì)菌從第1次分裂開(kāi)始，各次分裂產(chǎn)生的后代個(gè)數(shù)依次是2,4,8,16,32,64,… ⑤4.某人存入銀行a元，存期為5年，年利率為 r ，那么按照復(fù)利，他5年內(nèi)每年末得到的本利和分別是a(1+r),a〖(1+r)〗^2,a〖(1+r)〗^3,a〖(1+r)〗^4,a〖(1+r)〗^5 ⑥
人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的前n項(xiàng)和公式（1）教學(xué)設(shè)計(jì)
高斯（Gauss，1777－1855），德國(guó)數(shù)學(xué)家，近代數(shù)學(xué)的奠基者之一. 他在天文學(xué)、大地測(cè)量學(xué)、磁學(xué)、光學(xué)等領(lǐng)域都做出過(guò)杰出貢獻(xiàn). 問(wèn)題1：為什么1＋100＝2＋99＝…＝50＋51呢？這是巧合嗎？試從數(shù)列角度給出解釋.高斯的算法：（1+100）+（2+99）+…+(50+51)= 101×50=5050高斯的算法實(shí)際上解決了求等差數(shù)列：1，2，3，…，n，"… " 前100項(xiàng)的和問(wèn)題.等差數(shù)列中，下標(biāo)和相等的兩項(xiàng)和相等.設(shè) an＝n，則 a1＝1，a2＝2，a3＝3，…如果數(shù)列{an} 是等差數(shù)列，p，q，s，t∈N*，且 p＋q＝s＋t，則 ap＋aq＝as＋at 可得：a_1+a_100=a_2+a_99=?=a_50+a_51問(wèn)題2： 你能用上述方法計(jì)算1＋2＋3＋… ＋101嗎？問(wèn)題3： 你能計(jì)算1＋2＋3＋… ＋n嗎？需要對(duì)項(xiàng)數(shù)的奇偶進(jìn)行分類討論.當(dāng)n為偶數(shù)時(shí)， S_n=(1+n)+[(2+(n-1)]+?+[(n/2+(n/2-1)]=(1+n)+(1+n)…+(1+n)=n/2 (1+n) =(n(1+n))/2當(dāng)n為奇數(shù)數(shù)時(shí)， n－1為偶數(shù)