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新人教版高中英語必修1Unit 3 Sports and Fitness-Reading and Thinking教案
2. Sort out detailed information about Michael Jordan.（1） Understand the transitional sentence.Q: Which part is about Michael Jordan as a master? Which part is about the example he set?（2） Have the Ss Focus on why Michael Jordan is a master and what good examples Michael Jordan set when they’re reading. And think about these questions as below:Q1: How does the author describe his impressive skills?Q2: How do you understand “time seemed to stand still”?Q3: What does “graceful” mean?Q4. Which sentence do you think best describes his mental strength?Q5. Which words is important in the sentence in describing his mental strength? Why?Q6: How do you understand “unique”?Q7: What can we learn from Michael Jordan?Step 5 Discussing and recommendingRecommend their own living legends of sports.Work in groups to choose your own living legend of sports and give the reasons of your choice. Step 6 HomeworkReview the stories of Lang Ping and Michael Jordan, and try to retell them.
新人教版高中英語必修1Unit 3 Sports and Fitness-Reading for Writing教案
Then have them write a short paragraph to describe and explain their changes. After that, get the Ss to exchange their drafts with their partners and use the checklist to give feedback on their drafts, and finally revise it.Step 5 Summary of how to write a wellness book1.健康書的審題步驟：第一步：明確要求該寫作屬于經(jīng)驗(yàn)分享，故要用第一人稱來寫;時(shí)態(tài)以一股現(xiàn)在時(shí)為主。第二步：確定段落該類文章可以從以下三個(gè)方面人手:Para.1首先表明寫作的目的Para.2自己的做法及心得體會(huì)Para.3表示期望及感謝第三步：提煉要點(diǎn)2.健康書常見句式：1) It is an honor for me to share my favorite sport with you,2) It makes me feel relaxed playing with my friends.3) It makes me rid myself of stress while playing with my friends.4) Moreover, it provides me a valuable chance to communicate with others.5) I we eat too little or too much, or if we choose the wrong food, we may become sick.6) We can do something to change the poor situation.Step 6Homework假如你的老師讓你在班級(jí)Wellness Bok上分享自己的親身經(jīng)歷及心得，請(qǐng)根據(jù)以下要點(diǎn)寫一篇80字左右的文章1. 你喜歡的運(yùn)動(dòng)是什么？2. 你最喜歡的原因是什么？3. 你參加鍛煉的體會(huì)。
新人教版高中英語必修1Unit 4 Natural Disasters- Reading for writing教案
①標(biāo)題——標(biāo)題應(yīng)當(dāng)簡潔明了。②導(dǎo)語——導(dǎo)語是消息開頭的第一段或第一句話，簡明扼要地揭示出消息的核心內(nèi)容。③主體——主體是消息的主要部分，要用充足的事實(shí)表現(xiàn)主題，對(duì)導(dǎo)語的內(nèi)容作進(jìn)一步的展開和闡述。④結(jié)束語——通常是對(duì)全文內(nèi)容進(jìn)行概括性的總結(jié)。3. 新聞報(bào)道增分句子（1）陳述事實(shí)常用的句型:①A terrible storm hit/struck ... , killing ..②It was a cool autumn night when the earthquake happened. A large number of buildings fell down and roads were destroyed, leaving a great many people homeless.地震發(fā)生在一個(gè)涼爽的秋夜。大量的建筑物倒塌，道路被毀,許多人無家可歸。③With the help of the rescue team, people who were the trapped in the flood were saved.在救援隊(duì)的幫助下，困在洪水中的人們得救了。（2）陳述觀點(diǎn)常用的句型:①Clearly/Obviously/In my opinion/It seemed that people were shocked.顯然/在我看來/似乎人們震驚了。②The whole city was in ruins after the earthquake.地震后整個(gè)城市成了一片廢墟。（3）揭示原因常用的句型:Because of/As a result of/Thanks to the help of the army, people who got injured were sent to the hospital immediately.
新人教版高中英語必修1Unit 4 Natural Disasters-Discovering Useful Structures教案
【教材分析】This teaching period mainly deals with the grammar: the restrictive relative clauses.This period carries considerable significance to the cultivation of students’ writing competence and lays a solid foundation for the basic appreciation of language beauty. The teacher is expected to enable students to master this period thoroughly and consolidate the knowledge by doing some exercise of good quality.【教學(xué)目標(biāo)與核心素養(yǎng)】1. Get students to have a good understanding of the basic usages of the restrictive relative clauses.2. Enable students to use the restrictive relative clauses flexibly.3. Develop students’ speaking and cooperating abilities.4. Strengthen students’ great interest in grammar learning.【教學(xué)重難點(diǎn)】How to enable students to have a good understanding of the restrictive relative clauses, especially the uses of the relative words such as which, that, who, whom.【教學(xué)過程】Step1: 語法知識(shí)呈現(xiàn)定語從句（一）—關(guān)系代詞的用法在復(fù)合句中, 修飾名詞或代詞的從句叫定語從句。定語從句通常由關(guān)系代詞或關(guān)系副詞引導(dǎo)，說明事物的具體信息，從句位于被修飾詞之后。被定語從句修飾的詞叫先行詞，引導(dǎo)定語從句的詞叫關(guān)系詞，關(guān)系詞指代先行詞，并在定語從句中充當(dāng)成分。關(guān)系詞有兩種：關(guān)系代詞who, whom ,whose, that, which, as和關(guān)系副詞when, where, why。
新人教版高中英語必修1Unit 4 Natural Disasters-Listening and Speaking教案
【教材分析】高考聽力材料的選用非常重視語言真實(shí)性和交際性的原則，語言材料一般來源于實(shí)際生活，對(duì)話的內(nèi)容大都取材于日常生活，即衣、食、住、行、工作、學(xué)習(xí)、天氣、生活環(huán)境等話題，可分為校園、公共場所、家庭等方面，如: shopping, finding the way, doing one’s homework, seeing a doctor, making a phone call, weather report, asking for different kinds of information等。新教材的特點(diǎn)就是利用生活中真實(shí)文本，只是降低難度，讓學(xué)生注重語言的應(yīng)用，將是我們高考把握方向的重要因素?！窘虒W(xué)目標(biāo)與核心素養(yǎng)】學(xué)習(xí)能力目標(biāo)：在聽力當(dāng)中，學(xué)生應(yīng)該有效規(guī)劃學(xué)習(xí)方法，選擇恰當(dāng)?shù)牟呗耘c方法。這節(jié)課的訓(xùn)練目標(biāo)是讓學(xué)生有正確的預(yù)測(cè)和抓住問題的關(guān)鍵信息，從而用心去聽來找尋關(guān)鍵信息。根據(jù)生活中實(shí)際情況和高考常見語境，我們不難發(fā)現(xiàn)提前預(yù)測(cè)和抓住題干中的w很重要，即what, where, when, why等等。
新人教版高中英語必修1Welcome Unit-Discovering Useful Structures教案
II Learn the technical terms-2.1. What can be used as “Subject, Object, Predicative, Direct Object, Indirect Object and objective complement” in a sentence?2. What can be used as “adverbial” in a sentence?3. What can be used as “verb” in a sentence?Answers to questions 1-3:1. Nouns, pronouns and appellations can be used as “Subject, Object, Predicative, Direct Object, Indirect Object and Objective Complement”. Besides, adjectives can be used as “Predicative and Objective Complement” in a sentence.2. Adverbs and prepositional phrases can be used as “Adverbial”.3. Verbs with actual meaning can be used as “Verb” in a sentence. Auxiliary verbs alone cannot be used as “Verb” in a sentence.III Learn to recognize the sentence structures.1. SV structure. For Example:(1) A bird flies.S V(2) A monkey jumps.S V(3) A fish swims.S V√ In SV structures, verbs are “intransitive verbs”.2. SVO structure. For Example:(1) A sheep eats grass.S V O(2) They like bananas.S V O(3) He wants candy.S V O√ In SVO structures, verbs are “transitive verbs”.3. SP structure. For Example:(1) This is great.S P (2) He looks well.S P (3) She became a teacher.S P √ In SP structures, Predicatives are formed by “l(fā)ink verbs” and “adjectives or nouns”.√ link verbs: be, become, grow, look, feel, taste, etc.4. SV IO DO structure. For Example:(1) He asked me a question.S V IO DO(2) Danny wrote me a letter.S V IO DO(3) Billy brought Sam a kite.S V IO DO√ In SV IO DO structures, the verbs are transitive and are followed by two objectives – pronouns or nouns as Indirect Objective, and nouns as Direct Objectives.
新人教版高中英語必修1Unit 4 Natural Disasters-Reading & Thinking教案
5. Read to get detailed information about Paragraph 5.Q1. What shows the revival of Tangshan?Q2. How can Tangshan revive itself and get up on its feet again?Q3. In times of disasters, how can we go through it?T: In times of disasters, we should unify, show the wisdom and stay positive.Step 4 Activity 4 Highlighting the theme and reflecting1. Make a summary of the text.2. Further understand the titleQ: After our learning, why do you think the earth didn’t sleep on that night?T: An earthquake happened. The people in the earthquake suffered a lot, and the people outside Tangshan were concerned about the people there a lot.3. Reflect through discussion on what can be learnt after reading.T: Disasters are powerful. Unpreparedness can be deadly. Life is weak, but if people work together to help each other, disasters can be defeated.There is no love from disaster, but we have love in the human heart.Step 5 Assignment How does the writer convey that the earthquake was deadly, and that people were helpless during the earthquake? Try to find some attractive and impressive expressions and note them down.
新人教版高中英語必修1Unit 5 Languages Around the World-Reading and Thinking教案
【教材分析】本節(jié)課是高中英語第一冊(cè)的最后一個(gè)單元的閱讀和思考部分，文章難度明顯增加，體現(xiàn)在以下幾個(gè)方面：文章題材是說明文，比較難理解；話題生疏，涉及到歷史等知識(shí)；生詞量增大，而且在語境中理解詞匯的要求提高。面對(duì)這些，教師的難度和高度也要有所提升，通過探討說明順序，了解背景知識(shí)等幫助他們找到說明文閱讀的方法。【教學(xué)目標(biāo)與核心素養(yǎng)】1. 文化意識(shí)目標(biāo)新課程中指出，文化意識(shí)是對(duì)中外文化的理解和對(duì)優(yōu)秀文化的認(rèn)同。文化意識(shí)的的培養(yǎng)有助于學(xué)生增加國家認(rèn)同和家國情懷，成為有文明素養(yǎng)和社會(huì)責(zé)任感的人。我們這個(gè)單元很好體現(xiàn)了這一點(diǎn)，通過了解漢字書寫的體系和發(fā)展，學(xué)生可以有一種文化自豪感，同時(shí)也能夠幫助學(xué)生深入挖掘這篇文章，從而想到更多和中國文化相關(guān)的方面。2. 學(xué)習(xí)能力目標(biāo)
新人教版高中英語必修1Unit 5 Languages Around the World-Reading for Writing教案
Step 3: Read to sum upRead it again and sum up the problems of the three students, and then write down the advice that was given from others.Step 4: Work in pairs. List your learning problems in English and brainstorm some useful advice.Useful expressions ? I don't know how to…... Is a big difficulty for me. I cannot ...? You might try …. It's very important to…? I have no idea how/what .My biggest problem is .... ? I (also) have trouble with. My advice is …. This worked for me.? l cannot understand the teachers’ English in class.Step 5 Homework：為提高我校學(xué)生的英語口語水平，我們將舉辦英語演講比賽(English- speaking contest)，請(qǐng)你根據(jù)下面的信息，以學(xué)生會(huì)(the Students‘ Union)的名義寫一份海報(bào)，歡迎全校同學(xué)參加，屆時(shí)特邀本校美籍教師史密斯先生頒獎(jiǎng)。? 報(bào)名時(shí)間 9月30日以前(報(bào)名:signup)? 報(bào)名地點(diǎn) 學(xué)生會(huì)辦公室? 比賽時(shí)間 10月9日晚7:00~9:00? 比賽地點(diǎn) 學(xué)校大會(huì)議室? 獎(jiǎng)勵(lì) 前8名
新人教版高中英語必修1Welcome Unit-Reading and Thinking教案
Step 2 New WordsUse ppt to show some words from the passage.Tell the students to remember the meanings.Step3 Skimming and Thinking1. Skim the text and decide which order Han Jing follows to talk about her first day. Time order or place order?Time order2. What is Han Jing worried about before she goes to senior high school?She is worried about whether she will make new friends and if no one talks to her, what she should do.Step 4 Fast Reading1. Match the main ideas with each paragraphParagraph 1:The worries about the new school day Paragraph 2Han Jing’s first maths classParagraph 3Han Jing’s first chemistry classParagraph 4Han Jing’s feelings about her first senior school dayStep 5 Careful Reading1. Fill in the chart with the words and phrases about Han Jing’s day. Answers: Senior high school, a little nervous; Her first maths class, classmates and teachers, friendly and helpful; Chemistry lab; new; great; annoying guy; Confident; a lot to explore2. Read the text again and discuss the questions.1) Why did Han Jing feel anxious before school?Because she was a new senior high student and she was not outgoing. What was more, she was worried about whether she can make friends.2) How was her first maths class?It was difficult but the teacher was kind and friendly. 3) What happened in the chemistry class? What would you do if this happened to you? A guy next to Han Jing tried to talk with her and she couldn’t concentrate on the experiment.
新人教版高中英語必修1Welcome Unit-Reading for Writing教案
教學(xué)目標(biāo)知識(shí)目標(biāo)：讓學(xué)生更好理解如何恰當(dāng)?shù)貙懸粋€(gè)人的信息介紹，并能讓學(xué)生熟練地使用一些寫作技能。能力目標(biāo)：培養(yǎng)學(xué)生的寫作能力和團(tuán)隊(duì)協(xié)作能力。情感目標(biāo)：提升學(xué)生對(duì)寫作的興趣。教學(xué)重難點(diǎn) 教學(xué)重點(diǎn)：如何能讓學(xué)生更好地理解個(gè)人信息介紹。教學(xué)難點(diǎn)：如何能讓學(xué)生通過適當(dāng)?shù)厥褂靡恍懽骷寄軄韺懸黄^好的個(gè)人信息介紹。教學(xué)準(zhǔn)備 多媒體、黑板、粉筆一、Pre-class1. Greetings2. Leading-inAsk students how to write a profile. What kinds of aspects should be included? The teacher asks students to discuss the topic with each other and put forward to much more ideas about the answer.二、While-class1. The teacher lets students to read the student profiles on Page 8 silently and then asks students to discuss the questions below.1. What is Ann like? How do you know?2. What are Thando’s hobbies?3. Where does Thando come from?4. What is Thando’s dream?5. What does “You will never see me without a book or a pen” mean?
人教版高中語文必修4《張衡傳》教案
采用明段意分段法：先逐段概括段意，然后用合并同類項(xiàng)法把相關(guān)聯(lián)緊縮密的自然段合在一起。全文五個(gè)自然段中，二、三、四自然段講的都是張衡取得的科學(xué)成就，自然應(yīng)合為一大段。這樣，就理清了文章的結(jié)構(gòu)。全文可分為三個(gè)部分：(1)寫張衡的品格和文才①(2)寫張衡在科學(xué)技術(shù)上取得的成就(②③④)(3)寫張衡的政治才干(⑤)第二部分是文章的重點(diǎn)，又可分為兩層：一是仕途情況，以及制作渾天儀和著《靈憲》、《算圖論》的情況；一是專門介紹候風(fēng)地支儀。顯然，后者又是第二部分的重點(diǎn)。作者這樣處理文章的詳略安排。無疑是非常正確的，因?yàn)閺埡庖簧卸喾矫娴牟拍芎统删?，而他在科技方面的才能和?chuàng)造發(fā)明最為突出，理應(yīng)成為本文記敘的重點(diǎn)。四、小結(jié)1.了解全文的內(nèi)容和結(jié)構(gòu)，掌握明段意分段法。2.了解文章的詳略安排。五、作業(yè)
新人教版高中英語必修1Welcome Unit-Discovering Useful Structures & Listening and Talking教案
常跟雙賓語的動(dòng)詞有：（需借助to的）bring, ask, hand, offer, give, lend, send, show, teach, tell, write, pass, pay, promise, return等；基本句型 五S +V + O + OC（主＋謂＋賓＋賓補(bǔ)）特點(diǎn)：動(dòng)詞雖然是及物動(dòng)詞，但是只跟一個(gè)賓語還不能表達(dá)完整的意思，必須加上一個(gè)補(bǔ)充成分來補(bǔ)足賓語，才能使意思完整。 判斷原則：能表達(dá)成—賓語 是…/做…注：此結(jié)構(gòu)由“主語+及物的謂語動(dòng)詞+賓語+賓語補(bǔ)足語”構(gòu)成。賓語與賓語補(bǔ)足語之間有邏輯上的主謂關(guān)系或主表關(guān)系，若無賓語補(bǔ)足語，則句意不夠完整?？梢杂米鲑e補(bǔ)的有：名詞，形容詞，副詞，介詞短語，動(dòng)詞不定式，分詞等。如：He considers himself an expert on the subject.他認(rèn)為自己是這門學(xué)科的專家。We must keep our classroom clean.我們必須保持教室清潔。I had my bike stolen.我的自行車被偷了。We invited him to come to our school.我們邀請(qǐng)他來我們學(xué)校。I beg you to keep secret what we talked here.我求你對(duì)這里所談的話保密。用it做形式賓語，而將真正的賓語放到賓語補(bǔ)足語的后面，以使句子結(jié)構(gòu)平衡，是英語常用的句型結(jié)構(gòu)方式。即：主語+謂語+it+賓補(bǔ)+真正賓語。如：We think it a good idea to go climb the mountain this Sunday.
人教版高中政治必修2處理民族關(guān)系的原則：平等、團(tuán)結(jié)、共同繁榮教案
一、教材分析普通高中思想政治課程標(biāo)準(zhǔn)及浙江省普通高中新課程實(shí)驗(yàn)學(xué)科教學(xué)指導(dǎo)意見對(duì)本課時(shí)內(nèi)容做了如下規(guī)定：基本要求：知道我國是統(tǒng)一的多民族國家；理解我國處理民族關(guān)系的三項(xiàng)基本原則及其相互關(guān)系；懂得處理民族關(guān)系的重要性，自覺履行維護(hù)國家統(tǒng)一和民族團(tuán)結(jié)的義務(wù)。發(fā)展要求：聯(lián)系國內(nèi)外的具體事例，加深理解我國處理民族關(guān)系的基本原則的重要性。本框題有如下內(nèi)容不作拓展：我們偉大的祖國是各族人民共同締造的；我國新型民族關(guān)系的形成；實(shí)施西部大開發(fā)戰(zhàn)略對(duì)加快民族自治地方的經(jīng)濟(jì)和社會(huì)發(fā)展的意義；我國能夠真正建立新型民族的原因?！短幚砻褡尻P(guān)系的原則：平等、團(tuán)結(jié)、共同繁榮》是高一《政治生活》第三單元第七課內(nèi)容，本課內(nèi)容由三目構(gòu)成，第一目：雪域高原的歷史性跨越，第二目：我國處理民族關(guān)系的基本原則，第三目：鞏固社會(huì)主義民族關(guān)系，我們?cè)撟鍪裁?，能做什么?/p>
高中物理必修1教案高中物理必修二圓周運(yùn)動(dòng)教案
一、描述圓周運(yùn)動(dòng)的物理量 探究交流 打籃球的同學(xué)可能玩過轉(zhuǎn)籃球，讓籃球在指尖旋轉(zhuǎn)，展示自己的球技，如圖5-4-1所示.若籃球正繞指尖所在的豎直軸旋轉(zhuǎn)，那么籃球上不同高度的各點(diǎn)的角速度相同嗎?線速度相同嗎? 【提示】 籃球上各點(diǎn)的角速度是相同的.但由于不同高度的各點(diǎn)轉(zhuǎn)動(dòng)時(shí)的圓心、半徑不同，由v=ωr可知不同高度的各點(diǎn)的線速度不同.
人教版高中政治必修4第十課創(chuàng)新意識(shí)與社會(huì)進(jìn)步教案
2．辯證的否定(1)辯證的否定是事物的自我否定。事物內(nèi)部存在著肯定方面和否定方面，它們既對(duì)立又統(tǒng)一。最初，肯定方面處于支配地位，否定方面處于被支配地位。在這種情況下，事物就被肯定著。但是，在矛盾雙方的斗爭中，否定方面總會(huì)由弱變強(qiáng)。一旦否定方面由被支配地位上升為支配地位，事物就轉(zhuǎn)化到了自己的對(duì)立面，實(shí)現(xiàn)了對(duì)事物的否定。事物最終之所以被否定，根源在于事物的內(nèi)部，是事物內(nèi)部的否定因素戰(zhàn)勝了肯定因素。因此，事物的否定是自我否定。(2)辯證的否定是事物發(fā)展的環(huán)節(jié)和聯(lián)系的環(huán)節(jié)。所謂發(fā)展，是指新事物的產(chǎn)生和舊事物的滅亡。而實(shí)現(xiàn)這一過程必須要對(duì)舊事物進(jìn)行否定，否定實(shí)現(xiàn)了事物由舊質(zhì)向新質(zhì)的飛躍。新事物在否定舊事物時(shí)，并不是把舊事物全盤拋棄，一筆勾銷。舊事物是新事物的母體，新事物從舊事物那里脫胎而來，新事物是在批判地繼承舊事物中的一切積極的有生命力的因素的基礎(chǔ)上發(fā)展起來的。這樣，在新舊事物之間就存在著必然的聯(lián)系。
人教版新課標(biāo)高中物理必修1物理學(xué)與人類文明教案2篇
1. 課前觀看視頻《物理學(xué)與人類文明》2. 分組討論，派代表發(fā)言，談學(xué)習(xí)感受。主要是物理的地位，物理的學(xué)習(xí)方法。3. 高中物理與初中物理在內(nèi)容和方法上的區(qū)別高中物理除了現(xiàn)象、概念和規(guī)律之外還應(yīng)該關(guān)注研究問題的方法，學(xué)會(huì)從先想到抽象，從定性到定量研究問題，學(xué)會(huì)用數(shù)學(xué)方法解決物理問題，學(xué)會(huì)實(shí)驗(yàn)探究，學(xué)會(huì)獨(dú)立分析問題解決問題的思維習(xí)慣。4. 高中物理學(xué)習(xí)的基本要求高中物理學(xué)習(xí)應(yīng)該“重視實(shí)驗(yàn)，勤于思考”和“經(jīng)歷過程，體驗(yàn)方法”。高中物理學(xué)習(xí)與初中物理學(xué)習(xí)雖然有一定區(qū)別，但也不是孤立的，要繼續(xù)堅(jiān)持初中物理學(xué)習(xí)中積累的學(xué)習(xí)方法和體會(huì)，重視從正反兩個(gè)方面加以總結(jié)和提煉，做到：（1） 認(rèn)真閱讀，學(xué)會(huì)自學(xué)要學(xué)好物理，就要認(rèn)真閱讀課本。閱讀課本是要抓住關(guān)鍵詞語，弄清語句間的邏輯順序和因果關(guān)系，領(lǐng)會(huì)文章段落所表達(dá)的物理內(nèi)容，掌握課本敘述物理問題的表達(dá)方法。
人教版新課標(biāo)高中物理必修1物理學(xué)與人類文明教案2篇
八、物理學(xué)的基礎(chǔ)地位及物理學(xué)對(duì)人類文明、社會(huì)進(jìn)步的影響。（1） 情景一：磁懸浮實(shí)驗(yàn)：找兩個(gè)空心的圓柱片磁鐵，同名磁極相對(duì)，穿在同一根竹筷上，用手壓下上面的磁鐵，松手觀察它的運(yùn)動(dòng)情況。問題1：上面的磁鐵為什么會(huì)跳起來，為什么會(huì)懸浮在下面的磁鐵上方？問題2：根據(jù)這個(gè)實(shí)驗(yàn)，你會(huì)想到那一種交通工具？總結(jié)：人們就是從磁懸浮現(xiàn)象中得到啟發(fā)，進(jìn)行磁懸浮列車的研究和制造的，這說明物理學(xué)在推動(dòng)社會(huì)進(jìn)步、人類文明方面起到推動(dòng)作用。（2） 情景二：感應(yīng)起電和火花放電實(shí)驗(yàn)：用感應(yīng)起電機(jī)或感應(yīng)圈產(chǎn)生火花放電，讓學(xué)生觀察現(xiàn)象，聞氣味，然后聯(lián)想生活實(shí)例。還可以用一張紙?jiān)囍鴵踝》烹姷幕」猓詈媚芤技垙?，說明雷擊引起火災(zāi)的現(xiàn)象。問題1：你看、聽到了什么現(xiàn)象？問題2：根據(jù)這個(gè)實(shí)驗(yàn)，你會(huì)想到那一種自然現(xiàn)象？問題3：放電發(fā)生在什么地方？為什么建筑物上方都有尖尖的設(shè)置，是干什么用的？問題4：你聞到什么氣味了嗎？
人教版新課標(biāo)高中物理必修2萬有引力定律教案2篇
3.適用條件（1）萬有引力定律只適用于質(zhì)點(diǎn)間引力大小的計(jì)算。當(dāng)兩物體間的距離遠(yuǎn)遠(yuǎn)大于每個(gè)物體的尺寸時(shí)，物體可以看成質(zhì)點(diǎn)，直接使用萬有引力定律計(jì)算。（模型）研究相互接觸的兩個(gè)人之間的萬有引力時(shí)，不能把他們看作質(zhì)點(diǎn)。（2）當(dāng)兩物體是質(zhì)量均勻分布的球體時(shí)，它們間的引力也可直接用公式計(jì)算，但式中的r是指兩球心間距離。研究太陽和地球之間的萬有引力，可以把它們看作質(zhì)量均勻的球體。當(dāng)研究物體不能看成質(zhì)點(diǎn)時(shí)，可以把物體假想分割成無數(shù)個(gè)質(zhì)點(diǎn)，求出兩個(gè)物體上每個(gè)質(zhì)點(diǎn)與另一物體上所有質(zhì)點(diǎn)的萬有引力，然后求合力，這是微積分的思想。萬有引力定律產(chǎn)生于對(duì)太陽系行星運(yùn)動(dòng)的研究，但它對(duì)物質(zhì)運(yùn)動(dòng)的適用性卻要廣泛得多?？梢赃@樣說，宇宙中凡有引力參與的一切復(fù)雜的現(xiàn)象，無不要?dú)w結(jié)到這樣一條十分簡潔的定律之中，這不能不使人驚嘆宇宙萬物超乎尋常的和諧及人類理性思考所具有的統(tǒng)攝力。
人教版新課標(biāo)高中物理必修2曲線運(yùn)動(dòng)教案2篇
1、教師先演示投影：把小鋼珠放在黑墨水瓶蓋里轉(zhuǎn)一下（內(nèi)有一點(diǎn)點(diǎn)墨水），再放在半圓形有機(jī)玻璃軌道上運(yùn)動(dòng)并飛出，讓鋼珠在白紙上留下痕跡，同樣在3/5半圓周，4/5半圓周上運(yùn)動(dòng)飛出，讓學(xué)生猜測(cè)飛出方向由什么特點(diǎn)？（有機(jī)玻璃板說明：厚約5毫米，略小于小鋼珠直徑，圓弧半徑15厘米，MN邊稍長些，以便過MN做直線，根據(jù)半徑大小確定圓心O位置。）學(xué)生猜想：切線方向師：已知圓弧半徑為15厘米。如何驗(yàn)證？請(qǐng)用幾何方法作圖驗(yàn)證。生：標(biāo)出飛出點(diǎn)和圓心，做圓心和飛出點(diǎn)的連線，用量角尺量出該連線和飛出軌跡直線的夾角，是否90度。2、再分組實(shí)驗(yàn)，提醒同桌配合，小心鋼珠滾跑。實(shí)驗(yàn)完畢，要求作圖驗(yàn)證，并互相討論交流。3、交流和結(jié)論：師：要引導(dǎo)學(xué)生得出正確的科學(xué)結(jié)論：“圓周運(yùn)動(dòng)的物體的速度方向?yàn)樵擖c(diǎn)的切線方向”，而不能直接得出“曲線運(yùn)動(dòng)的的物體速度方向?yàn)樵擖c(diǎn)的切線方向”。
