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新人教版高中英語必修3Unit 1 Festivals and Celebrations-Reading and Thinking教學(xué)設(shè)計(jì)
The topic of this part is “Discover the reasons for festivals and celebrations.The Listening & Speaking & Talking part aims at talking about the experiences and feelings or emotions about the festivals and celebrations. This section aims at detecting the reason why the people celebrate the festivals, the time, the places, the types and the way of celebrations. It also explains why some traditions in the old celebrations are disappearing, like the firecrackers in the big cities and some new things are appearing like the prosperity of business or commerce. 1. Students can talk about what festivals they know and the reasons and the way of celebrating them.2. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.3. Students can understand the past, the present situation of some festival around the world and why there are some changes about them. 4. Students can have the international awareness about the festivals.1. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.2. Students can understand the past, the present situation of some festival around the world and why there are some changes about them.Step 1 Lead in---Small talkWhat festival do you like best ? Why ?I like the Spring Festivals because I can set off the fireworks, receive the lucky money and enjoy the Gala with my families.Step 2 Before reading---Pair workWhy do people celebrate different festivals ?The Spring Festivals is to celebrate the end of winter and the coming of spring and new life.The Mid-autumn Day is to celebrate the harvest and admire the moon.
新人教版高中英語必修3Unit 1 Festivals and Celebrations-Listening &Speaking＆Talking教學(xué)設(shè)計(jì)
The theme of this section is “Talk about festival activities and festival experiences”.Festival and holiday is a relaxing and interesting topic for students. This part talks about the topic from the daily life of students’. In the part A ---Listening and Speaking, there are three conversations among different speakers from three countries(Japan, Rio and China), where the speakers are participating in or going to participate in the festivals and celebrations. So listening for the relationship among them is a fundamental task. Actually, with the globalization and more international communication, it is normal for Chinese or foreigners to witness different festivals and celebrations in or out of China. In the Conversation 1, a foreign reporter is interviewing a Japanese young girl who just had participated in the ceremony of the Coming-of-Age Day on the street and asking her feeling about the ceremony and the afterwards activities. Conversation 2, Chinese girl Li Mei is witnessing the Rio Carnival for the first time, and her friend Carla gives her some advice on the costumes which enables her to match with the carnival to have a good time. Conversation 3, a Chinese guide is showing a group of foreign visitors around the Lantern Festival and introducing the customs of the festival to them. The three conversations have a strong vitality and insert the festival and cultural elements from different countries. So perceiving the festivals and cultures from different countries is the second task. At the same time, the scripts also insert the targeted grammar --- v-ing as attributive and predicative, which students can perceive and experience in a real context and make a road for the further study. That is the third task. In the Part B--- Listening and Talking, the theme is “Talk about festival experience”, which is the common topic in our daily conversations. During the conversation, Song Lin, a Chinese student, asked Canadian friend Max about how to spend Christmas. In the conversation, Song Lin talked about experience and the feelings during the Chinese Spring Festival, during which there are not only some enjoyable things but some unpleasant things. After the listening, perhaps students find there are some similarities between Christmas and the Chinese Spring Festival as there are some differences in the origins and celebrations. For example, people always visit friends and relatives, decorate their houses, have a big dinner together, chat and give presents to each other.
新人教版高中英語必修3Unit 1 Festivals and Celebrations-Reading for Writing教學(xué)設(shè)計(jì)一
The topic of this part is “Write about your festival experience”.During the Listening and Speaking and Talking, students are just asked to say out their festival experiences such as the Spring Festival, Mid-autumn Day, but this part students will be asked to write down their own festival experiences. During the reading part, it introduces the Naadam Festival in Inner Mongolia Autonomous Region, which can give students a good example to imitate. Students not only learn the festival, but touch and feel the Inner Mongolian’s character, the spirit and cultural atmosphere, which can help students form the cultural awareness and learn to enjoy and value the diversity of Chinese culture.Concretely, the dairy tells the experience that the author spent the Naadam Festival in Inner Mongolia Autonomous Region with his/her friend. The structure is clear. In the opening paragraph, it introduces the topic of the Naadam Festival and the whole feeling. Then it introduces the items of the festival like the ceremony, wrestling and horse racing. Finally, it summarizes this experience. Because this part is a travel journal, we must guide students pay more attention to these details: 1. use the first person. 2. use the past tense to tell the past thing and use the present or future tense to describe the scenery. 3. use the timeline to tell the development. 4. be careful for the author’s psychology, emotion and feeling, etc.1. Read quickly to get main idea; read carefully to get the detailed information about Naadam Festival.2. Learn the structure of the reading article and language.3. Write an article about a festival experience4. Learn to use the psychology, emotions and feeling in the writing.1. Write an article about a festival experience.2. Use the structure of the reading article and language.
人教版高中語文必修1《園丁贊歌：記敘要選好角度》教案2篇
天上有明月，年年照相思。她夜夜沉醉在夢(mèng)中。夢(mèng)把空間縮短了，夢(mèng)把時(shí)間凝固了，夢(mèng)把世界凈化了。夢(mèng)中沒有污穢，沒有嘈雜，沒有邪惡；夢(mèng)中沒有分離，沒有創(chuàng)傷，沒有痛苦；夢(mèng)中只有柔和的月色，只有溫馨的愛；夢(mèng)使她永遠(yuǎn)年輕，使她不原醒來?！。莻€(gè)世界，是為天下最真最善最美的心靈準(zhǔn)備的，藝術(shù)家懷著虔誠的情感，用充滿魔力的琴弦，在人們的心中筑起了一座不朽的天堂，它像天地一樣長(zhǎng)久，日月一樣永恒！新月微微地閉著眼睛，她清清楚楚地看到了那座天堂，真真切切地觸到了那座天堂，冰凌砌成墻壁，白云鋪成房頂，霧靄織成紗幔，星星串成明燈；在那里，她的頭發(fā)像沐浴之后那樣清爽柔軟，隨風(fēng)飄拂，她的肌膚像披著月光那樣清涼潤(rùn)滑，她的那顆心啊，像浸潤(rùn)著蒙蒙細(xì)雨的花蕾，掛著晶瑩的露珠，自由地呼吸……她沉醉在那個(gè)一塵不染的美好的境界，如歌如詩，如夢(mèng)如幻，如云如月，如水如煙……
人教版高中政治必修1按勞分配為主體、多種分配方式并存教案
（3）確立按生產(chǎn)要素分配的意義確立按生產(chǎn)要素分配的原則，是對(duì)市場(chǎng)經(jīng)濟(jì)條件下各種生產(chǎn)要素所有權(quán)存在的合理性、合法性的確認(rèn)，體現(xiàn)了國(guó)家對(duì)公民權(quán)利的尊重，對(duì)勞動(dòng)、知識(shí)、人才、創(chuàng)造的尊重。有利于讓一切生產(chǎn)要素的活力競(jìng)相迸發(fā)，讓一切創(chuàng)造社會(huì)財(cái)富的源泉充分涌流，以造福人民。（三）課堂總結(jié)、點(diǎn)評(píng) 通過這節(jié)課的學(xué)習(xí)，我們懂得了在我國(guó)社會(huì)主義初級(jí)階段，實(shí)行以按勞分配為主體、多種分配方式并存的制度，把按勞分配和按生產(chǎn)要素分配結(jié)合起來具有客觀必然性，也有重要的意義?！镎n余作業(yè) 組織學(xué)生撰寫社會(huì)調(diào)查報(bào)告，要求學(xué)生調(diào)查自己家里的收入情況，分清哪些收入是按勞分配所得，哪些是非按勞分配收入，并進(jìn)一步分析現(xiàn)在的收入形式與以前相比有哪些變化，這種變化給家庭的生活帶來哪些影響？★教學(xué)體會(huì)本節(jié)內(nèi)容是與學(xué)生生活實(shí)際密切聯(lián)系的內(nèi)容，在學(xué)習(xí)中應(yīng)該多引入日常生產(chǎn)、生活中常見的一些實(shí)例，讓學(xué)生去深刻理解這些知識(shí)，并能夠從自己的實(shí)踐中理解、把握我國(guó)分配政策的合理性。
人教版高中政治必修1儲(chǔ)蓄存款和商業(yè)銀行教案
第三、結(jié)算業(yè)務(wù)結(jié)算業(yè)務(wù)時(shí)商業(yè)銀行為社會(huì)經(jīng)濟(jì)活動(dòng)中的貨幣收支提供手段與工具的服務(wù)。銀行從中收取一定的服務(wù)費(fèi)用。除上述三大業(yè)務(wù)外，商業(yè)銀行還可以提供債券買賣與兌付、代理買賣外匯、代理保險(xiǎn)、提供保管箱等其他服務(wù)。教師活動(dòng)：商業(yè)銀行在我國(guó)經(jīng)濟(jì)建設(shè)中具有巨大作用。請(qǐng)同學(xué)們看教材52頁專家點(diǎn)評(píng)。學(xué)生活動(dòng)：閱讀課本，認(rèn)真總結(jié)，得出結(jié)論（三）課堂總結(jié)、點(diǎn)評(píng) 這節(jié)課我們重點(diǎn)學(xué)習(xí)了儲(chǔ)蓄存款和商業(yè)銀行的有關(guān)知識(shí)，知道了儲(chǔ)蓄存款活動(dòng)程序、主要機(jī)構(gòu)、特點(diǎn)和利息的計(jì)算等常識(shí)，了解了各種商業(yè)銀行主要業(yè)務(wù)及其作用。這對(duì)于我們?cè)谌粘Ｉ钪姓_地辦理金融儲(chǔ)蓄業(yè)務(wù)將有重大指導(dǎo)作用?！镎n余作業(yè) 組織學(xué)生到附近銀行、企業(yè)、居民中，咨詢銀行信貸活動(dòng)的程序及原則要求，并親自到商業(yè)銀行辦理一次存款和取款活動(dòng)。
人教版高中政治必修1效率優(yōu)先、兼顧公平教案
教師活動(dòng)：引導(dǎo)學(xué)生閱讀教材67頁，回答：什么是效率優(yōu)先，兼顧公平？如何貫徹此原則？學(xué)生活動(dòng)：閱讀課本，認(rèn)真總結(jié)，發(fā)表見解教師點(diǎn)評(píng)：效率優(yōu)先，實(shí)質(zhì)是發(fā)展生產(chǎn)力優(yōu)先，分配制度和分配政策要以促進(jìn)生產(chǎn)力的發(fā)展和經(jīng)濟(jì)效益的提高為首要目標(biāo)；兼顧公平，是指社會(huì)要將收入差距控制在合理的范圍內(nèi)，使分配的結(jié)果能促使人們奮進(jìn)，社會(huì)具有生機(jī)喝活力。堅(jiān)持效率優(yōu)先、兼顧公平，首先，要允許和鼓勵(lì)一部分地區(qū)和個(gè)人通過誠實(shí)勞動(dòng)和合法經(jīng)營(yíng)先富起來，先富帶后富，最終達(dá)到共同富裕。其次，既要反對(duì)平均主義，又要防止收入差距懸殊；既要落實(shí)分配政策，又要提倡奉獻(xiàn)精神。再次，必須正確處理初次分配注重效率與再分配注重公平的關(guān)系。初次分配注重效率有利于充分調(diào)動(dòng)人們的積極性。在再分配中，要加強(qiáng)政府對(duì)收入分配的調(diào)節(jié)，調(diào)節(jié)過高收入，取締非法收入，提高低收入者的收入水平，通過完善社會(huì)保障制度等，把收入差距控制在一定范圍之內(nèi)。
新人教版高中英語必修1Unit 2 Travelling Around-Listening and Speaking & Listening and Talking教案
【教學(xué)目標(biāo)與核心素養(yǎng)】1. Instruct students to get main facts by listening and motivate them to talk about the topics about how to prepare for the trip and make reservations by listening and ultimately can make travel arrangements and reservations. 2. Develop students’ sense of cooperative learning and individual thinking capability. 3. Develop students’ different listening skills to solve different listening comprehensive problems.4. Help students to understand how to use the structures “the present continuous tense (be doing) is used to express future plans.【教學(xué)重難點(diǎn)】1. Teach students how to focus on key words, not on single words or grammar.2. Prompt Ss to talk about the related topics, such as how to prepare for the trip and make a travel plan.【教學(xué)過程】Step 1: Listening and SpeakingLead inThe teacher is advised to talk with their students about the places that they want to travel most both at home and abroad: boys and girls, if you have a chance to travel around the world, where will you go? After their small talk, the teacher can move on by finishing the following listening task:Before travelling, what do we need to prepare for the trip?
新人教版高中英語必修1Unit 3 Sports and Fitness-Listening and Speaking & Listening and Talking教案
Finally, after finishing the task above, the teacher is expected to instruct students to work in groups to finish the following project:Speaking ProjectWhat event or activity would you like to invite your friend to? Make a conversation with a partner.Ski Race: Zhangjiakou, a beautiful city in northern China, will host the Youth Ski Race in December.Track Meet: a great event for track –and –field lovers on 26 October.Gym Class: come and work out at a gym! You can make it.Part 2: Listening and Talking:The teacher is advised to talk with their new students about the related topic: Boys and girls , what do you think of sportsmanship? Let’s listen and find out:Play the listening and match each opinion with the right speaker. Who do you agree with? Why?Cao Jing _____________ Lily _____________ Max _____________A. An athlete should do his/her best to win.B. The girl should stop and help the other girl. Good sportsmanship is more important than wining!C. An athlete should think about honor and his/her fans if he/she is competing for his/her country.Listen again and circle the expressions that you hear in the conversation.
新人教版高中英語必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教學(xué)設(shè)計(jì)
4.That was an experience that frightened everyone. →That was _____________________. 答案：1. taking 2. being discussed 3. in the reading room 4. a frightening experienceStep 6 The meaning and function of V-ing as the predicative動(dòng)詞-ing形式作表語，它通常位于系動(dòng)詞后面，用以說明主語“是什么”或“怎么樣”一種表示主語的特質(zhì)、特征和狀態(tài), 其作用相當(dāng)于形容詞; 另一種具體說明主語的內(nèi)容, 即主語等同于表語, 兩者可互換。The music they are playing sounds so exciting. 他們演奏的音樂聽起來令人激動(dòng)。The result is disappointing. 結(jié)果令人失望。Our job is playing all kinds of music. 我們的工作就是演奏各種音樂。Seeing is believing. 眼見為實(shí)。Step 7 Practice1. It is ________(amaze) that the boy is able to solve the problem so quickly.2. Buying a car is simply _______(waste) money. 3. Please stop making the noise—it’s getting ________(annoy). 4. complete the passage with the appropriate -ing form.La Tomatina is a festival that takes place in the Spanish town Bunol every August. I think many food festivals are __________ because people are just eating. however, this festival is _________ because people don't actually eat the tomatoes. Instead, they throw them at each other! the number of people ________ part in this tomato fight, can reach up to 20,000, and it is a very __________ fight that lasts for a whole hour. The _______ thing is how clean Bunol is after the tomatoes are washed away after the fight. this is because the juice form tomatoes is really good for making surfaces clean!答案：1. amazing 2. wasting 3. annoying4. boring interesting taking exciting amazing
新人教版高中英語必修3Unit 1 Festivals and Celebrations-Reading for writing教學(xué)設(shè)計(jì)二
Step 3 Analyzing article structureActivity 31. Teachers raise questions to guide students to analyze the chapter structure of this diary and think about how to describe the festival experience. (1)What should be included in the opening/body/closing paragraph(s)?(2)How did the writer arrange his/her ideas?(3)What kind of interesting details did the writer describe?(4)How did the writer describe his/her feelings/emotions during the event?2. Students read and compare the three sentence patterns in activity 2. Try to rewrite the first paragraph of the diary with these three sentence patterns. After that, students exchange corrections with their partners. Such as:●This was my first time spending three days experiencing the Naadam Festival in China’s Inner Mongolia Autonomous Region and it was an enjoyable and exciting experience. ●I'll never forget my experience at the Naadam Festival because it was my first time to watch the exciting Mongolian games of horse racing, wrestling, and archery so closely. ●I'll always remember my first experience at the Naadam Festival in China’s Inner Mongolia Autonomous Region because it was so amazing to spend three days witnessing a grand Mongolian ceremony. Step 4 Accumulation of statementsActivity 41. Ask the students to read the diary again. Look for sentences that express feelings and emotions, especially those with the -ing form and the past participle. Such as:● …h(huán)orse racing, wrestling, and archery, which are all so exciting to watch. ● some amazing performances● I was surprised to see…● I was a little worried about. . . ● feeling really tiredOther emotional statements:●I absolutely enjoyed the archery, too, but the horse races were my favourite part. ●I'm finally back home now, feeling really tired, but celebrating Naadam with my friend was totally worth it. ●He invited me back for the winter to stay in a traditional Mongolian tent and cat hot pot. I can’t wait!2. In addition to the use of the -ing form and the past participle, the teacher should guide the students in the appreciation of these statements, ask them to memorize them, and encourage them to use them reasonably in writing practice.
人教版高中地理必修1第二章第四節(jié)全球氣候變化教案
氣候變化對(duì)健康的影響 氣候變化對(duì)人體健康的不良影響是不難發(fā)現(xiàn)的：熱浪沖擊頻繁加重可致死亡率及某些疾病、特別是心臟呼吸系統(tǒng)疾病發(fā)病率增加；對(duì)氣候變化敏感的傳染性疾病如瘧疾和登革熱的傳播范圍可能增加。極端氣候事件, 如干旱、水災(zāi)、暴風(fēng)雨等, 使死亡率、傷殘率及傳染病疾病率上升, 并增加社會(huì)心理壓力。某些媒介疾病的加重也可能與氣候變化有間接的關(guān)系, 如瘧疾是通過蚊子傳播的疾病,氣候變化可能使某些變暖地區(qū)的蚊子數(shù)目增加, 從而加重了瘧疾的發(fā)生。我國(guó)1994年瘧疾的發(fā)病率為5.3408/10萬, 居全國(guó)法定傳染病的第六位。血吸蟲病的發(fā)展與高溫及灌溉系統(tǒng)的擴(kuò)增有關(guān)。我國(guó)1994年南方12省市血吸蟲病患者的檢出率高達(dá)3.67%，不能忽視氣候變化對(duì)此的可能影響。還有一些疾病，如睡眠病、登革熱、黑熱病等也有與氣候關(guān)系的報(bào)道。另外, CO2、一些空氣污染物如氮氧化物、臭氧等可增加過敏疾患及心臟呼吸系統(tǒng)疾病和死亡。
人教版新課標(biāo)高中地理必修2第一章第三節(jié)人口合理容量教案
生：環(huán)境承載力是指環(huán)境能持續(xù)供養(yǎng)的人口數(shù)量。師：對(duì)了。但是有同學(xué)仍然會(huì)感到這是一個(gè)很抽象的概念。下面我們具體來了解什么是環(huán)境承載力。我們可以從兩個(gè)部分去理解：一、環(huán)境，它主要是指環(huán)境的單個(gè)要素（如：土地、水、氣候、植被等。）及其組合方式。二、是承載力，它指在特定的條件下，具體某事物能承受的某種活動(dòng)的最大值。那環(huán)境承載力的科學(xué)定義是怎樣表達(dá)的呢？生：環(huán)境承載力是指某一時(shí)期，某種狀態(tài)條件下，某地區(qū)環(huán)境所能承受的人類活動(dòng)作用的閾值。師：很對(duì)。 我們可以用一個(gè)生動(dòng)的例子來說明。一只木桶里面的水的多少在底面積固定不變的情況下是由哪塊木板來決定？生：最短的那塊。師：確實(shí)如此。這就是我們平常所講的 “木桶效應(yīng)”。那影響環(huán)境承載力的大小也是由環(huán)境個(gè)要素里面最緊缺的那個(gè)要素來決定的。下面我們用一個(gè)例子來印證一下。
人教版高中政治必修3第八課走進(jìn)文化生活精品教案
1．加強(qiáng)社會(huì)主義文化建設(shè)的必要性在人類歷史的長(zhǎng)河中，各種思想文化總是相互沖擊、交匯、融合．奔騰向前，永不停息。今天，我們面對(duì)的文化有傳統(tǒng)的和現(xiàn)代的、外來的和本土的、進(jìn)步的和落后的、先進(jìn)的和腐朽的、積極的和頹廢的，等等。各種各樣的文化有吸納又有排斥，有融合又有斗爭(zhēng)，有滲透又有抵御，呈現(xiàn)出前所未有的相互交織、相互激蕩之勢(shì)。在這種文化發(fā)展的大背景下，在我國(guó)現(xiàn)代化建設(shè)過程中，有必要弘揚(yáng)我國(guó)社會(huì)主義的主流文化，這樣有利于保證我國(guó)社會(huì)主義文化發(fā)展的方向。2．大力加強(qiáng)社會(huì)主義文化建設(shè)(1)中國(guó)特色社會(huì)主義文化在我國(guó)文化生活中處于主導(dǎo)地位。中國(guó)特色社會(huì)主義文化，始終堅(jiān)持以科學(xué)的理論武裝人，以正確的輿論引導(dǎo)人，以高尚的精神塑造人，以優(yōu)秀的作品鼓舞人，無論是思想內(nèi)容還是表現(xiàn)形式，都發(fā)揮著強(qiáng)有力的導(dǎo)向和示范作用。社會(huì)主義文化以其自身的科學(xué)性和先進(jìn)性，并依靠社會(huì)主義政治和經(jīng)濟(jì)力量，在人民大眾的文化生活中始終占據(jù)著主導(dǎo)地位。
人教版高中政治必修3第五課文化創(chuàng)新精品教案
3．社會(huì)實(shí)踐對(duì)文化創(chuàng)新的決定作用社會(huì)實(shí)踐對(duì)文化創(chuàng)新具有兩個(gè)方面的重要作用：(1)社會(huì)實(shí)踐是文化創(chuàng)新的源泉實(shí)踐，作為人們改造客觀世界的活動(dòng)，是一種有目的、有意識(shí)的社會(huì)性活動(dòng)。人類在改造自然和社會(huì)的實(shí)踐中，創(chuàng)造出自己特有的文化。離開了社會(huì)實(shí)踐；文化就會(huì)成為無源之水、無本之木，人們不可能從事任何有價(jià)值的文化創(chuàng)造?！蟊菊n小結(jié)：1．關(guān)于本課邏輯結(jié)構(gòu)的宏觀把握：文化創(chuàng)新的源泉和作用這一問題，教材分三個(gè)層次展開論證：一是不盡的源泉，不竭的動(dòng)力；二是巨大的作用，深刻的意義；三是呼喚文化創(chuàng)新的時(shí)代。教材運(yùn)用辯證方法從文化創(chuàng)新的源泉和作用展開論述。即社會(huì)實(shí)踐是文化創(chuàng)新的源泉，文化創(chuàng)新又推動(dòng)社會(huì)實(shí)踐的發(fā)展和促進(jìn)民族文化的繁榮。教材關(guān)于文化創(chuàng)新的途徑問題，從三個(gè)層次展開講述：第一個(gè)層次是“繼承傳統(tǒng)，推陳出新”；第二個(gè)層次是“面向世界，博采眾長(zhǎng)”；第三個(gè)層次是“堅(jiān)持正確方向，克服錯(cuò)誤傾向”。
人教版新課標(biāo)高中地理必修2第二章第三節(jié)城市化教案
[補(bǔ)充]：鄭州是特大城市，我們對(duì)燈火通明的夜晚都有深刻的體會(huì)，我們都體會(huì)過光給他們帶來的好處，而對(duì)過多過亮的光帶來的危害則很少認(rèn)真地思考過，且光污染給都市人們和其他生物和環(huán)境帶來的不利影響也越來越大，所以，我在這兒給同學(xué)們補(bǔ)充光污染，目的是提醒他們要增強(qiáng)環(huán)保意識(shí)，要理解城市在建設(shè)過程中要減少城市各類活動(dòng)對(duì)環(huán)境的污染；另外，隨著城市的不斷發(fā)展，還可能會(huì)產(chǎn)生新 的污染物。還培養(yǎng)了學(xué)生用發(fā)展的眼光來看世界。[思考]：如何降低城市化對(duì)地理環(huán)境產(chǎn)生的影響？[答]：發(fā)展生態(tài)城市，使人工環(huán)境和自然環(huán)境和諧統(tǒng)一起來。一方面在城市建設(shè)中，要發(fā)展低污染的節(jié)能建筑和綠色交通，減少城市各類活動(dòng)對(duì)環(huán)境的污染；另一方面使城市景觀盡可能地與山、河、湖、海、植被等自然景觀保持協(xié)調(diào)，建立一種良性循環(huán)。
人教版新課標(biāo)高中物理必修2機(jī)械能守恒定律教案2篇
（二）進(jìn)行新課1、動(dòng)能與勢(shì)能的相互轉(zhuǎn)化演示實(shí)驗(yàn)1：如右圖，用細(xì)線、小球、帶有標(biāo)尺的鐵架臺(tái)等做實(shí)驗(yàn)。把一個(gè)小球用細(xì)線懸掛起來，把小球拉到一定高度的A點(diǎn)，然后放開，小球在擺動(dòng)過程中，重力勢(shì)能和動(dòng)能相互轉(zhuǎn)化。我們看到，小球可以擺到跟A點(diǎn)等高的C點(diǎn)，如圖甲。如果用尺子在某一點(diǎn)擋住細(xì)線，小球雖然不能擺到C點(diǎn)，但擺到另一側(cè)時(shí)，也能達(dá)到跟A點(diǎn)相同的高度，如圖乙。問題：這個(gè)小實(shí)驗(yàn)中，小球的受力情況如何？各個(gè)力的做功情況如何？這個(gè)小實(shí)驗(yàn)說明了什么？學(xué)生觀察演示實(shí)驗(yàn)，思考問題，選出代表發(fā)表見解。小球在擺動(dòng)過程中受重力和繩的拉力作用。拉力和速度方向總垂直，對(duì)小球不做功；只有重力對(duì)小球能做功。實(shí)驗(yàn)證明，小球在擺動(dòng)過程中重力勢(shì)能和動(dòng)能在不斷轉(zhuǎn)化。在擺動(dòng)過程中，小球總能回到原來的高度?？梢姡亓?shì)能和動(dòng)能的總和保持不變。即機(jī)械能保持不變。
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。可以這樣說，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(jiǎn)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動(dòng)能和動(dòng)能定理教案2篇
二、課堂教學(xué)（課前由科代表發(fā)回預(yù)習(xí)學(xué)案）1、教師根據(jù)預(yù)習(xí)學(xué)案檢查結(jié)果提出問題（用多媒體展示），引導(dǎo)全班討論（重點(diǎn)討論：①、為什么動(dòng)能的表達(dá)式一定是 mV2 ？你如何得出這個(gè)結(jié)論？②、力在一個(gè)過程中對(duì)物體所做的功，和物體在這個(gè)過程中動(dòng)能的變化量有什么關(guān)系？你如何得出這個(gè)結(jié)論？這個(gè)做功的力和F=ma中的力F有什么關(guān)系）。有困難的小組應(yīng)及時(shí)問老師。老師在這個(gè)過程中巡視指導(dǎo)。2、學(xué)生自主閱讀課文“7 動(dòng)能和動(dòng)能定理”中的“動(dòng)能的表達(dá)式”，然后完成如下練習(xí)（教師在此過程中巡視指導(dǎo)）：2.1嘗試推出動(dòng)能的表達(dá)式（鼓勵(lì)會(huì)推導(dǎo)的同學(xué)積極上臺(tái)板演，老師引導(dǎo)討論）。2.2寫出動(dòng)能的小結(jié)（認(rèn)真閱讀教材p66倒數(shù)第二段、第三段，結(jié)合你推導(dǎo)動(dòng)能表達(dá)式的過程，認(rèn)真思考后四人一組討論：①、動(dòng)能是矢量還是標(biāo)量？②、動(dòng)能的單位是什么？③、你認(rèn)為應(yīng)從哪幾方面來理解動(dòng)能？）
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(zhǎng)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”。