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人教版高中語文必修1《鴻門宴》教案
劉邦：先看劉邦對項伯的表白（此話也是有意讓項伯轉述給項羽聽的）：“秋毫不敢有所近”——說“不敢”而不說“不曾”，多么恭順！“籍吏民，封府庫，而待將軍”——“待”，多么虔誠！“日夜望將軍至”——說“望”而不說“等”，多么迫切！再看劉邦的卑詞“謝罪”：他言必稱“將軍”，說自己與項羽“戮力而攻秦”，是戰(zhàn)友而非敵人；將“先入關破秦”說成是不自意，以表自己的力量不如項羽；把“得復見將軍于此”當作是自己莫大的榮幸以滿足項羽的虛榮心；最后，他還把項羽的憤怒歸咎于“小人”的挑撥，為項羽推卸責任，及時給項羽一個臺階下。小結：項羽：沽名釣譽、輕敵自大、寡謀輕信、不善用人、剛愎自用、優(yōu)柔寡斷的一介武夫。劉邦：狡詐多謀、遇事果斷、臨危不懼、能屈能伸、善于用人。
人教版高中語文必修1《奇妙的對聯(lián)》教案2篇
3、介紹對聯(lián)的歷史引出本課的重點。人類歷史上的第一副對聯(lián)是“新年納余慶，嘉節(jié)號長春”。出現(xiàn)在五代十國時期（公元964年），距離現(xiàn)在已經(jīng)有1044年了。有著一千多年歷史的對聯(lián)有什么基本的特點呢？這是我們這節(jié)課學習的重點。請在座的各位當回醫(yī)生，給下面這幅對聯(lián)號號脈，看它對仗是否工整？上聯(lián)：冬去春來千條楊柳迎風綠下聯(lián)：冰消雪化梅花萬朵撲鼻有什么問題，怎么改？剛才這幾位同學指出了這幅對聯(lián)的兩個問題，也提出了兩條修改意見。第一是下聯(lián)少了一個字，最好是添加一個“香”字；第二是下聯(lián)的“梅花萬朵”與上聯(lián)的“千條楊柳”是數(shù)量詞對名詞，名詞對數(shù)量詞，對仗不工整，要調(diào)整為“萬朵梅花”。這樣，數(shù)量詞“萬朵”對“千條”，名詞“梅花”對“楊柳”。大家還有沒有不同的看法。這樣我們就可以得出對聯(lián)的兩個特點特點：第一個特點是上下聯(lián)字數(shù)要相等（板書）。就是上聯(lián)有幾個字，下聯(lián)也要有幾個字。大家記下來，對聯(lián)基本要求一，“上下聯(lián)字數(shù)相等”。這個要求是很嚴格的，一般來說，違反這個規(guī)則就不成對聯(lián)了。
人教版高中歷史必修1辛亥革命教案2篇
①從政府人員組成看，南京政府是一個以資產(chǎn)階級革命派為主體的政府。②從政府頒發(fā)的法令和措施看，這些法令體現(xiàn)了資產(chǎn)階級民主革命的要求，對于發(fā)展民族資本主義經(jīng)濟、資產(chǎn)階級民主政治和文化教育以及改革社會風氣，都起了積極作用。③從頒布的《中華民國臨時約法》看，憲法體現(xiàn)了三權分立的政治體制，體現(xiàn)了資產(chǎn)階級民主主義的要求，是中國歷史上第一部資產(chǎn)階級民主憲法，具有反封建專制制度的進步意義。（2）從南京臨時政府的內(nèi)外政策分析南京政府的根本弱點①未徹底地反封建。它沒有采取比較徹底的反對封建主義的措施，特別是對封建統(tǒng)治的基礎——地主階級土地所有制沒有觸動，這樣，南京臨時政府也就不能真正地把廣大人民群眾動員起來，因而缺乏真正的群眾基礎。
人教版高中歷史必修1抗日戰(zhàn)爭教案
【備課資料】百團大戰(zhàn)八路軍從8月20日起，在華北敵后出動105個團，約40萬兵力，在2500公里長的戰(zhàn)線上，發(fā)動了規(guī)模最大的“以徹底破壞正太路若干要隘，消滅部分敵人截斷該線交通”為目的的舉世聞名的“百團大戰(zhàn)”。八路軍提出“不留一根鐵軌、不留一根枕木、不留一個車站、不留一個碉堡、不留一座橋梁”的口號，“讓敵人用腳同我們賽跑”，“讓敵人用牛驢搬炮彈、飛機大炮”。八路軍展開攻堅戰(zhàn)，端掉敵一系列據(jù)點。據(jù)有關資料記載，從8月20日到12月5日，在歷時三個半月的“百四大戰(zhàn)”中，我軍共進行大小戰(zhàn)斗1824次，斃傷日偽軍25800余人，俘日偽軍18600余人，繳獲了大批武器、彈藥和軍用食品等；破壞鐵路470多公里，公路1500多公里，橋梁、車站、隧道等260余處，使正太鐵路停運月余；攻克日偽據(jù)點2993個，鞏固和擴大了抗日軍民占領區(qū)。
新人教版高中英語必修1Unit 2 Travelling Around–Listening and Speaking教案
無論她說什么都不會對我們的安排有影響。Answers: for, arrangement3) Parents arrange everything for their children and spare no effort to pave the way for their success.父母為孩子安排好一切，不遺余力地為他們的成功鋪路。4. extremely adv 極其，非常extreme adj 非常的1) Mary found it extremely difficult to get a job.2) I’m extremely sorry to have troubled you.Answers:瑪麗發(fā)現(xiàn)找工作極其困難。給你添了麻煩，我十分抱歉。3) It had white-painted tunnels and bright red carriages, and proved _________ (extreme) popular with the public.它有白色的隧道和明亮的紅色車廂，結果證明它非常受大眾的歡迎。Answers: extremelyExercises1. I am continuing to apply_______ jobs though I have failed several times.2. All this had an _______ (extremely) bad effect on the criminal justice system.3. The invention would have wide ______ (apply) in industry.4. She’s happy with her unusual living _________ (arrange).5. I was banging so loudly that I’m ___________ (amaze) that they didn’t hear me.6. You haven’t changed at all you still look ___________ (exact) the same.7. “Was it what you expected?” “Yes, _________ (definite).”8. He was looking forward to______ (work) with the newPrime Minister. Answers: for extreme application arrangement amazed exactly definitely looking單句寫作：1. _______________ (你要說些什么) when you get on the platform to accept the reward?2. Since_____________________(我們?yōu)檫@些事情做好了準備), we have nothing to worry about.
新人教版高中英語必修1Unit 2 Travelling Around-Reading for Writing教案
Is there a clear purpose for the trip? :Does each paragraph have a clear main idea? Does the writer use the present continuous tense for future plans?Does the writer use commas, stops, and question marks correctly? Are all the words spelt correctly?Are all the proper nouns capitalized?Revise your draft according to your partner's comments.Step 5:The summary of how to write a travel plan.旅游計劃是一種常見的應用文寫作。旅游可分為觀光游、文化游、美食游及探險游等不同類型，因此旅游計劃也要根據(jù)不同的旅游目的進行設計。常規(guī)的旅游計劃需要明確以下幾個方面的問題:Travel planWhen will you leave for？ Where is your the destination?How will you get there?What will you do there?How long will you there?Is there a clear purpose for the trip? 為了提升旅行計劃的層級，還需注意以下幾個方面的問題:1.每段是否有明確清晰的主題;2.用一般現(xiàn)在時代替一般將來時；3.用更高級的形容詞詞匯。例如:表達“好”時，不要總用“nice”,我們還可以用“smart, clean, excellent, exciting, beautiful, wonderful, clever, famous, grand”等表達更具有指向性的詞匯；4.用更高級的動詞詞匯。比如:我們可以用“seem stand, lie .get stay, remain, look . sound, become . keep, grow”等代替"be";
新人教版高中英語必修1Unit 4 Natural Disasters- Reading for writing教案
①標題——標題應當簡潔明了。②導語——導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，要用充足的事實表現(xiàn)主題，對導語的內(nèi)容作進一步的展開和闡述。④結束語——通常是對全文內(nèi)容進行概括性的總結。3. 新聞報道增分句子（1）陳述事實常用的句型: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.在救援隊的幫助下，困在洪水中的人們得救了。（2）陳述觀點常用的句型: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.【教學目標與核心素養(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.【教學重難點】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.【教學過程】Step1: 語法知識呈現(xiàn)定語從句（一）—關系代詞的用法在復合句中, 修飾名詞或代詞的從句叫定語從句。定語從句通常由關系代詞或關系副詞引導，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，引導定語從句的詞叫關系詞，關系詞指代先行詞，并在定語從句中充當成分。關系詞有兩種：關系代詞who, whom ,whose, that, which, as和關系副詞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性和交際性的原則，語言材料一般來源于實際生活，對話的內(nèi)容大都取材于日常生活，即衣、食、住、行、工作、學習、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。新教材的特點就是利用生活中真實文本，只是降低難度，讓學生注重語言的應用，將是我們高考把握方向的重要因素?！窘虒W目標與核心素養(yǎng)】學習能力目標：在聽力當中，學生應該有效規(guī)劃學習方法，選擇恰當?shù)牟呗耘c方法。這節(jié)課的訓練目標是讓學生有正確的預測和抓住問題的關鍵信息，從而用心去聽來找尋關鍵信息。根據(jù)生活中實際情況和高考常見語境，我們不難發(fā)現(xiàn)提前預測和抓住題干中的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
教學目標知識目標：讓學生更好理解如何恰當?shù)貙懸粋€人的信息介紹，并能讓學生熟練地使用一些寫作技能。能力目標：培養(yǎng)學生的寫作能力和團隊協(xié)作能力。情感目標：提升學生對寫作的興趣。教學重難點 教學重點：如何能讓學生更好地理解個人信息介紹。教學難點：如何能讓學生通過適當?shù)厥褂靡恍懽骷寄軄韺懸黄^好的個人信息介紹。教學準備 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?
新人教版高中英語必修2Unit 1 Cultural Heritage-Discovering Useful Structure教案一
This teaching period mainly deals with grammar “restrictive relative clauses.” To begin with, teachers should lead students to revise what they have learned about the relative pronouns and relative adverbs. And then, teachers move on to stress more special cases concerning this grammar, such as the “preposition+ relative pronouns which and whom” and cases where we can omit the relative pronouns. 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 exercises. 1. Guide students to review the basic usages of relative pronouns and adverbs of attributive clauses.2. Lead students to learn to use some special cases concerning restrictive relative clauses flexibly.2. Enable students to use the basic phrases structures flexibly.3. Strengthen students’ great interest in grammar learning.1. Help students to appreciate the function of relative pronouns and adverbs of attributive clauses in a sentence2. Instruct students to write essays using the proper relative pronouns and adverbs of attributive clauses.本節(jié)語法思考：定語從句在復合句中的作用是什么？ 關系詞有哪些？定語從句在復合句中的作用相當于形容詞，它在句中作定語修飾名詞或代詞。他們在先行詞和定語從句之間起到聯(lián)系作用，同時在意義上代表先行詞并在定語從句中擔任一個成分。被定語從句所修飾的詞稱先行詞，定語從句一般放在先行詞的后面。
新人教版高中英語必修2Unit 1 Cultural Heritage-Reading and Thinking教案一
The theme of the reading and thinking is about “Understanding how a problem was solved”.The Listening & Speaking & Talking is about international co-work to protect the Mount Tai, in which the students from seven countries came up with many solutions even create the Mount Tai App. This section aims at showing how to solve a difficult and even tough problem about protecting the cultural heritage by the international co-work. So in this section, cultivating students’ international awareness is very clear and important. Concretely, with the economic development, how to balance the protection of cultural relics and social development is a big challenge for human. In the 1950s, the Egyptian government wanted to build the Aswan Dam across the Nile to control floods, produce electricity and water farms. But the proposal led to protests because it would destroy a lot of cultural relics. The Egyptian had no choice but ask the UN for help. Therefore, a international cooperation about how to protect the cultural relics began, which involved the time length about 20 years and a large amount of fund. Then, the problems was solved. 1. Read quickly to get the main idea and the structure of the article; read careful to get detailed information.2. Learn to use the reading strategy---making a timeline3. Learn how to solve a tough problem by asking for help and cooperation4. Have the international awareness and understand the great strength of international cooperation.1. Read quickly to get the main idea and the structure of the article; read careful to get detailed information.2. Learn to use the reading strategy---making a timeline.3. Learn how to solve a tough problem by asking for help and cooperation.
新人教版高中英語必修2Unit 1 Cultural Heritage-Reading For Writing教案
This report is short, concise and has typical news content and language features. The title uses the verb phrases, embodying the characteristics of being concise and general. The introduction is the first two sentences in the first paragraph, describing the general situation of the cultural heritage protection project, including time, place, characters, events and other news elements, so that readers can see the main points of the news report at a glance. The main body is the second and third paragraphs, which report the important historical and cultural value of Mogao Grottoes and the production of Mogao Grottoes Material digital photos, which are of great significance to the inheritance of historical culture and the promotion of international cultural understanding, exchange and cooperation. Direct citation is used in the report, as well as background introduction and other news writing techniques.1. Get students to have a good understanding of some features about a news report by reading the text.2. Instruct students to write a summary about a news report properly using some newly acquired writing skills in this period.3. Develop students’ writing and cooperating abilities.4. Strengthen students’ great interest in writing discourses.1. Stimulate students to have a good understanding of how to a summary about a news report 2. Cultivate students to write a news report properly and concisely.Step 1: Lead in Do you think it is necessary for us to circulate our cultural heritage to the world? Why or why not?Do we need to learn more about other countries’ cultural heritage? Why or why not?Step 2: Read to discover details concerning the main body of the news report.
人教版高中地理必修1常見天氣系統(tǒng)教案
知識和技能 ⑴從圖片和簡易圖中，了解氣團（冷氣團、暖氣團）的概念；鋒的概念與分類；低壓（氣旋）、高壓（反氣旋）、高壓脊、低壓槽的概念。⑵從氣溫、氣壓、濕度、降水、風等幾方面分析各種天氣系統(tǒng)的形成及其氣流特點，并綜合出各種天氣系統(tǒng)控制下的天氣狀況過程與方法 ⑴讓學生能閱讀和簡單分析天氣圖，解釋天氣變化現(xiàn)象；⑵用案例說明氣象災害發(fā)生的原因和危害；⑶結合我國常見的天氣系統(tǒng)說明其對人們生產(chǎn)和生活的影響情感、態(tài)度與價值觀激發(fā)學生探究天氣的形成和變化的興趣和動機，培養(yǎng)學生求真、求實的科學態(tài)度，提高地理審美情趣教學重點1.鋒面系統(tǒng)。(鋒面系統(tǒng):一是要區(qū)別冷暖鋒的成因，二是要掌握鋒面兩側的氣壓、溫度、濕度、風和天氣差異)2.低壓、高壓系統(tǒng)。（要掌握其成因、氣壓特征、氣流特征及其天氣特點四個方面。）
人教版高中地理必修1地球的圈層結構教案
師：很好。由于存在地球大氣圈、地球水圈和地表的礦物，在地球上這個合適的溫度條件下，形成了適合于生物生存的自然環(huán)境。人們通常所說的生物，是指有生命的物體，包括植物、動物和微生物。據(jù)估計，現(xiàn)有生存的植物約有40萬種，動物約有110多萬種，微生物至少有10多萬種。據(jù)統(tǒng)計，在地質歷史上曾生存過的生物約有5億～10億種之多，然而，在地球漫長的演化過程中，絕大部分都已經(jīng)滅絕了。現(xiàn)存的生物生活在巖石圈的上層部分、大氣圈的下層部分和水圈的全部，構成了地球上一個獨特的圈層，稱為生物圈。生物圈是太陽系所有行星中僅在地球上存在的一個獨特圈層。課堂小結：地球所有的外部圈層是相互滲透、相互影響，甚至相互重疊的，在太陽和人類生活的參與下，整個地球生機盎然；同時，它們起著保護地球的作用，可以減弱太陽和宇宙輻射對地表的影響，減少宇宙中的隕石對地球表面的撞擊。外部各圈中的物質運動和循環(huán)，是促使地表物質和形態(tài)演變的重要動力。
人教版高中地理必修1全球氣候變化教案
科學家預測，就地區(qū)而言，位于低緯度的大部分國家，農(nóng)作物的產(chǎn)量將減少；而位于高緯度的國家，農(nóng)作物產(chǎn)量有可能增加。由于不少發(fā)展中國家位于低緯度地區(qū)，因此，氣候變化的這種區(qū)域差異性，可能會使發(fā)展中國家所面臨的問題更為嚴峻。板書：3全球變暖將加劇水資源的不穩(wěn)定性與供需矛盾。介紹：全球變暖會影響整個水循環(huán)過程，可能使蒸發(fā)加大，改變區(qū)域降水量和降水分布格局，增加降水極端異常事件的發(fā)生，導致洪澇、干旱災害的頻次和強度增加，以及地表徑流發(fā)生變化。隨著徑流減少，蒸發(fā)增強，全球變暖將加劇水資源的不穩(wěn)定性與供需矛盾。轉折：既然全球變暖會引起很多不利影響，那么作為人類應如何面對這一挑戰(zhàn)呢？這就是我們要討論的第三個問題。板書：三、氣候變化的適應對策討論：請大家閱讀結合教材P53氣候變化的適應對策部分討論人類應如何面對全球變暖這一問題 呢？
人教版高中地理必修1自然界的水循環(huán)教案
情感、態(tài)度與價值觀幫助學生確立事物普遍聯(lián)系的觀點。幫助學生樹立正確認識利用自然規(guī)律，實現(xiàn)人類與環(huán)境的和諧發(fā)展的觀念 。教學 重點水循環(huán)的形成過程和地理意義。人類活動對水循環(huán)的影響教學 難點水循環(huán)的地理意義。教具、資料多媒體課件課 時安排1課時教學過程：【新課導入】出示計算機圖片：地球衛(wèi)星圖片、太陽系九大行星圖片。請同學們看，這是人類的家園——地球，與太陽系其它大行星相比，它的最大特點是什么呢？(有豐富的水)是的，我們所居住的這顆行星，表面四分之三為水所覆蓋，是一顆“水的行星”。我們這一章要學習的就是地球上的水 ?！疽龑А克心男┪锢砘瘜W性質？(固液氣三態(tài)變化、比熱、脹縮、溶劑等)那么，地球上的水都存在哪里呢？(海洋、河 流、湖泊、地下、冰川、沼澤、大氣、生物體等)【總結】水在地理環(huán)境中以氣態(tài)、固態(tài)和液態(tài)三種形式相互轉化，形成各種水體，共同構成了一個連續(xù)但不規(guī)則的圈層。這實際上就是水圈。
人教版新課標高中物理必修1彈力教案2篇
一般情況下，凡是支持物對物體的支持力，都是支持物因發(fā)生形變而對物體產(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，使書和桌面同時發(fā)生微小形變，要恢復原狀，對桌面產(chǎn)生垂直于桌面向下的彈力f1，這就是書對桌面的壓力；桌面由于發(fā)生微小的形變，對書產(chǎn)生垂直于書面向上的彈力f2，這就是桌面對書的支持力。學生分析：靜止地放在傾斜木板上的書，書對木板的壓力和木板對書的支持力。并畫出力的示意圖。結論：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。引導學生分析靜止時，懸繩對重物的拉力及方向。引導得出：懸掛物由于重力的作用而拉緊懸繩，使重物、懸繩同時發(fā)生微小的形變。重物由于發(fā)生微小的形變，對懸繩產(chǎn)生豎直向下的彈力f1，這是物對繩的拉力；懸繩由于發(fā)生微小形變，對物產(chǎn)生豎直向上的彈力f2，這就是繩對物體的拉力。
