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人教版高中生物必修3第一章第一節(jié)《細胞生活的內(nèi)環(huán)境》說課稿

  • 新人教版高中英語必修3Unit 4 Space Exploration-Listening&Speaking&Talking教學(xué)設(shè)計二

    新人教版高中英語必修3Unit 4 Space Exploration-Listening&Speaking&Talking教學(xué)設(shè)計二

    The themes of this part are “Talk about how to become an astronaut” and “Talk about life in space”. As Neil Armstrong said “Mystery creates wonder and wonder is the basis of man’s desire to understand. Space is difficult for human to reach, therefore, humans are full of wonders about it. However, if wanting to achieve the dream of reaching the Moon, some of our human should work hard to be an astronaut at first. Part A(Talk about how to become an astronaut) is a radio interview in a radio studio, where the host asked the Chinese astronauts about his story how to become an astronaut. Yang Liwei told his dreamed to be an astronaut since childhood. Then he worked hard to get into college at 22. The next 10 years, he gradually became an experienced pilot. At the same time, to be an astronaut, he had to study hard English, science and astronomy and trained hard to keep in good physical and mental health and to practise using space equipment. Part B (Talk about life in space) is also an interview with the astronaut Brown, who is back on the earth. The host Max asked about his space life, such as his emotion about going back the earth, the eating, shower, brushing, hobbies and his work. Part A and Part B are interviews. So expressing curiosity about the guests’ past life is a communicative skill, which students should be guided to learn.1. Students can get detailed information about how Yang Liwei became an astronaut and Max’s space life.2. Students learn to proper listening strategy to get detailed information---listening for numbers and taking notes.3. Students can learn related sentences or phrases to express their curiosity like “ I wish to know...” “I’d love to know...”4. Students can learn more about the space and astronauts, even be interested in working hard to be an astronaut

  • 新人教版高中英語必修3Unit 4 Space Exploration-Reading and Thinking教學(xué)設(shè)計二

    新人教版高中英語必修3Unit 4 Space Exploration-Reading and Thinking教學(xué)設(shè)計二

    The theme of this unit focuses on “space exploration.” Students will learn about the training and experience needed to become an astronaut. The text is mainly about the development of space exploration. On the one hand, the text helps students to have a good understanding about the great feats humans have achieved, on the other hand, they will further understand the contributions that we Chinese have achieved, and feel confident and proud about our homeland and strengthen their love for our country. The teacher should instruct students to aim high and study harder to make great progress in the space career if possible.1. Read about the development and value of space exploration.2. Explore the mysteries of the universe and the achievements in space exploration.3. Skillfully use the vocabulary of this text to cultivate self-study ability 4. Develop cooperative learning ability through discussion.1. Enable the Ss to talk about the development and value of space exploration.2. Guide the Ss to summarize the main idea of each paragraph as well as the main idea of the text.3. Help Ss comprehend the main reasons for space exploration. Multi-media, textbook, notebooks.Step 1: Warming up and predictionLook at the title and the pictures of the text and predict what the text will be about?2. What are the main reasons for space exploration?

  • 新人教版高中英語必修3Unit 4 Space Exploration-Reading for Writing教學(xué)設(shè)計二

    新人教版高中英語必修3Unit 4 Space Exploration-Reading for Writing教學(xué)設(shè)計二

    ⑦在我看來, 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?

  • 新人教版高中英語必修3Unit 5 The Value of Money- Discovering Useful Structure教學(xué)設(shè)計

    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教學(xué)設(shè)計

    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 5 The value of money-Reading and Thinking教學(xué)設(shè)計二

    新人教版高中英語必修3Unit 5 The value of money-Reading and Thinking教學(xué)設(shè)計二

    ? 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?

  • 新人教版高中英語必修3Unit 5 The Value of Money-Reading for Writing教學(xué)設(shè)計二

    新人教版高中英語必修3Unit 5 The Value of Money-Reading for Writing教學(xué)設(shè)計二

    2. 您能看到, 我頭發(fā)太長了。You can see that my hair is much too long.3. 無論什么時候, 只要您想回來就回來。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 ?

  • 人教版高中政治必修3聚焦文化競爭力教案2篇

    人教版高中政治必修3聚焦文化競爭力教案2篇

    教學(xué)目的:通過學(xué)生課前收集資料、課堂展示、小組討論及教師總結(jié)和講解等形式,明確文化競爭力在國際競爭中的地位,感受各國各國日益激烈的文化競爭力,探討如何提升中國特色社會主義文化的競爭力,培養(yǎng)學(xué)生的分析解決問題的能力,增強責(zé)任意識、科技意識和成才意識。教學(xué)時間:1小時課前準備:(1)學(xué)生分組收集美國、日本、英國等國家文化產(chǎn)業(yè)的發(fā)展狀況和中國文化走向世界的資料,并要求制成簡單的課件。(2)分組討論課本P23—25的三個探究問題(①運用這些資料,從物質(zhì)和精神兩個方面,說明發(fā)展文化有什么意義。②你還能從社會生活的哪些現(xiàn)象中感受到一個國家的文化競爭力?③今天,中國文化為什么能夠在世界各地贏得尊重與喝彩?),組長整理好討論結(jié)果。

  • 人教版高中政治必修3建設(shè)社會主義精神文明教案

    人教版高中政治必修3建設(shè)社會主義精神文明教案

    (2)偉大的意義:這些精神文明創(chuàng)建活動,是人民群眾“移風(fēng)易俗”、改造社會的偉大創(chuàng)造,也是人民群眾自我教育、自我提高的有效途徑。各具特色的精神文明創(chuàng)建活動,使人們在自覺參與的過程中思想感情得到熏陶,思想覺悟得到啟發(fā),精神生活得到充實,道德意識得到增強,道德境界得到升華。這對整個中華民族的精神面貌,正在產(chǎn)生不可估量的積極影響?!簏c撥:“相關(guān)鏈接”描述了青年志愿者活動,引導(dǎo)學(xué)生感悟其精神,升華道德境界,增強參與意識。(3)必然的選擇:投身于社會主義精神文明建設(shè)的偉大實踐,做新時期中國先進文化的傳播者和建設(shè)者,是當代中國青年成長、成才的必然選擇?!笸卣寡由欤涸谌罕娦跃裎拿鲃?chuàng)建活動中涌現(xiàn)出的先進人物和英雄模范,像孔繁森、張海迪、徐洪剛、韓素云、李國安、徐虎、李素麗等,在全社會起到了良好的示范作用;提出的一些響亮口號,如“從我做起,從現(xiàn)在做起”“崗位學(xué)雷鋒,行業(yè)樹新風(fēng)”“單位做個好職工,社會做個好公民,家庭做個好成員”等,不斷激勵著人們。

  • 人教版高中政治必修3感受文化影響精品教案

    人教版高中政治必修3感受文化影響精品教案

    (三)合作探究、精講點撥 【情景導(dǎo)入,感受文化的影響】用多媒體展示教材“活動探究”P13的內(nèi)容(圖文并茂)情景問題:① 從這兩幅畫面中發(fā)現(xiàn)了哪些文化上的區(qū)別?你還能舉出更多的事例嗎?② 面對我們祖先創(chuàng)造的精美文化產(chǎn)品,人們的感慨,既有差異,又有共同之處。你能否解釋這是為什么?(學(xué)生討論、回答)情景問題:讓學(xué)生閱讀“活動探究”情景,帶著這些問題去思考、合作、探究,在學(xué)生交流、探究的基礎(chǔ)上,分組派代表完成這些問題,突出了學(xué)生的主體地位。設(shè)計意圖:1、開門見山的方式引導(dǎo)學(xué)生進行新的學(xué)習(xí)探究活動,創(chuàng)設(shè)問題情景,引起懸念,吸引學(xué)生的注意力,激發(fā)學(xué)生的學(xué)習(xí)興趣和探究欲望。2、通過自主探究,讓學(xué)生感悟到道理越辯越明,促使學(xué)生存疑、質(zhì)疑,從而產(chǎn)生強烈的探究欲望。

  • 人教版高中政治必修3文化與經(jīng)濟、政治精品教案

    人教版高中政治必修3文化與經(jīng)濟、政治精品教案

    一、教材分析《文化與經(jīng)濟、政治》是人教版高中政治必修三——文化生活第一單元第一課第二框的教學(xué)內(nèi)容,本課主要評述文化生活對人們交往方式、思維方式和生產(chǎn)方式的影響,說明現(xiàn)代社會中文化與經(jīng)濟、政治相互交融的意義。二、教學(xué)目標(一)知識目標◇理解:文化與經(jīng)濟、政治的關(guān)系:經(jīng)濟、政治決定文化,文化對經(jīng)濟、政治有重大影響,文化與經(jīng)濟、政治相互交融 ◇分析:經(jīng)濟和政治決定文化,文化是一定經(jīng)濟和政治的反映;文 化對經(jīng)濟發(fā)展具有重要作用,文化是生產(chǎn)力;文化對政治文明建設(shè)的推動作用及對公民政治素質(zhì)和權(quán)利意識的作;文化日益成為綜合國力的重要標志。(二)能力目標通過分析文化與經(jīng)濟、政治的關(guān)系,培養(yǎng)辯證分析能力(三)情感、態(tài)度、值觀目標懂得文化在綜合國力競爭中的地位和作用,努力學(xué)習(xí)將來為增強綜合國力貢獻力量

  • 新人教版高中英語必修1Unit 3 Sports and Fitness-Listening and Speaking & Listening and Talking教案

    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-Listening &Speaking&Talking教學(xué)設(shè)計

    新人教版高中英語必修3Unit 1 Festivals and Celebrations-Listening &Speaking&Talking教學(xué)設(shè)計

    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 2 Morals and Virtues-Listening &Speaking&Talking教學(xué)設(shè)計

    新人教版高中英語必修3Unit 2 Morals and Virtues-Listening &Speaking&Talking教學(xué)設(shè)計

    Example:One day, a poor boy who was trying to pay his way through school by sending newspapers door to door found that he only had one dime(一角)left. He was so hungry that he decided to beg for a meal at the next house.However, he lost his nerve when a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked hungry so she brought him a large glass of milk. He drank it slowly, and then asked, “How much do I owe you?” “You don’t owe me anything,” she replied, “Mother has taught me never to accept pay for a kindness.” “Then I thank you from the bottom of my heart.” With these words, Howard Kelly left that house.Years later the woman became badly ill and was finally sent to the hospital in a big city. Dr. Howard Kelly, now famous, was called in. When he heard the name of the town she came from, a strange light filled his eyes. Dressed in his doctor’s clothes, Dr. Kelly went into her room and recognized her at once. From that day on, he gave special attention to her, and decided to do his best to save her life.At last the woman was saved. Dr. Kelly asked the business office to pass the final bill to him. He looked at it and then wrote something on the side. The bill was sent to the woman’s room. She was afraid to open it because she was sure that it would take the rest of her life to pay for it off. Finally she looked, and the note on the side of the bill caught her attention. She read these words: “Paid in full with a glass of milk, Dr. Howard Kelly.” Tear of joy flooded her eyes.

  • 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

    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-Discovering Useful Structures導(dǎo)學(xué)案

    新人教版高中英語必修3Unit 5 The Value of Money-Discovering Useful Structures導(dǎo)學(xué)案

    4.They were going to find someone to take part in their bet when they saw Henry walking on the street outside.[歸納]1.過去將來時的基本構(gòu)成和用法過去將來時由“would+動詞原形”構(gòu)成,主要表示從過去某一時間來看將要發(fā)生的動作(尤其用于賓語從句中),還可以表示過去的動作習(xí)慣或傾向。Jeff knew he would be tired the next day.He promised that he would not open the letter until 2 o'clock.She said that she wouldn't do that again.2.表示過去將來時的其他表達法(1)was/were going to+動詞原形:該結(jié)構(gòu)有兩個主要用法,一是表示過去的打算,二是表示在過去看來有跡象表明將要發(fā)生某事。I thought it was going to rain.(2)was/were to+動詞原形:主要表示過去按計劃或安排要做的事情。She said she was to get married next month.(3)was/were about to+動詞原形:表示在過去看來即將要發(fā)生的動作,由于本身已含有“即將”的意味,所以不再與表示具體的將來時間狀語連用。I was about to go to bed when the phone rang.(4)was/were+現(xiàn)在分詞:表示在過去看來即將發(fā)生的動作,通??捎糜谠摻Y(jié)構(gòu)中的動詞是come,go,leave,arrive,begin,start,stop,close,open,die,join,borrow,buy等瞬間動詞。Jack said he was leaving tomorrow.

  • 高中物理必修1教案高中物理必修二圓周運動教案

    高中物理必修1教案高中物理必修二圓周運動教案

    一、描述圓周運動的物理量  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的角速度相同嗎?線速度相同嗎?  【提示】 籃球上各點的角速度是相同的.但由于不同高度的各點轉(zhuǎn)動時的圓心、半徑不同,由v=ωr可知不同高度的各點的線速度不同.

  • 高中物理必修二圓周運動教案

    高中物理必修二圓周運動教案

    1、知識與技能  (1)認識勻速圓周運動的概念,理解線速度的概念,知道它就是物體做勻速圓周運動的瞬時速度;理解角速度和周期的概念,會用它們的公式進行計算;  (2)理解線速度、角速度、周期之間的關(guān)系:v=rω=2πr/T;  (3)理解勻速圓周運動是變速運動。  2、過程與方法  (1)運用極限法理解線速度的瞬時性.掌握運用圓周運動的特點如何去分析有關(guān)問題;  (2)體會有了線速度后.為什么還要引入角速度.運用數(shù)學(xué)知識推導(dǎo)角速度的單位。

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    關(guān)于倡導(dǎo)低碳生活,打造綠色校園的國旗下講話

    倡導(dǎo)低碳生活,打造綠色校園xxx班 xxx親愛的老師,同學(xué)們:早上好!我是xxx班的xxx。今天,我國旗下講話的題目是《倡導(dǎo)低碳生活,打造綠色校園》。現(xiàn)在我國正在積極倡導(dǎo)“低碳生活”。所謂“低碳生活”,就是指生活中所耗用的能量要盡力減少,從而減低二氧化碳的排放量。我們應(yīng)該積極提倡并去實踐低碳生活,要注意4個節(jié)約:節(jié)電、節(jié)水、節(jié)油、節(jié)氣,從這些點滴做起。也許有同學(xué)會問,節(jié)能減排,應(yīng)該是政府和企業(yè)關(guān)注的事,似乎和我們學(xué)生無關(guān)。那你就錯了,社會大家庭中的每一個人,都與這件事密切相關(guān)!大家知道嗎?如果人人養(yǎng)成隨手關(guān)燈的好習(xí)慣,那么全國每年可節(jié)電約20億千瓦時,減排二氧化碳188萬噸。如果每年全國有10%的紙巾使用改為手帕代替,那就可減少紙張消耗約萬噸,節(jié)能2萬噸的標準煤?,F(xiàn)實生活中,我們每節(jié)約一滴水,一度電,一張紙,一粒糧食,都是對環(huán)保的貢獻;生活垃圾的合理處理,廢舊電池的合理回收,對校園及其他公共綠地的愛護,對身邊有損環(huán)?,F(xiàn)象的勸阻……所有這些,都是我們應(yīng)盡的社會責(zé)任。

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    關(guān)于倡導(dǎo)低碳生活,打造綠色校園的國旗下講話

    倡導(dǎo)低碳生活,打造綠色校園xxx班 xxx親愛的老師,同學(xué)們:早上好!我是xxx班的xxx。今天,我國旗下講話的題目是《倡導(dǎo)低碳生活,打造綠色校園》?,F(xiàn)在我國正在積極倡導(dǎo)“低碳生活”。所謂“低碳生活”,就是指生活中所耗用的能量要盡力減少,從而減低二氧化碳的排放量。我們應(yīng)該積極提倡并去實踐低碳生活,要注意4個節(jié)約:節(jié)電、節(jié)水、節(jié)油、節(jié)氣,從這些點滴做起。也許有同學(xué)會問,節(jié)能減排,應(yīng)該是政府和企業(yè)關(guān)注的事,似乎和我們學(xué)生無關(guān)。那你就錯了,社會大家庭中的每一個人,都與這件事密切相關(guān)!大家知道嗎?如果人人養(yǎng)成隨手關(guān)燈的好習(xí)慣,那么全國每年可節(jié)電約20億千瓦時,減排二氧化碳188萬噸。如果每年全國有10%的紙巾使用改為手帕代替,那就可減少紙張消耗約萬噸,節(jié)能2萬噸的標準煤?,F(xiàn)實生活中,我們每節(jié)約一滴水,一度電,一張紙,一粒糧食,都是對環(huán)保的貢獻;生活垃圾的合理處理,廢舊電池的合理回收,對校園及其他公共綠地的愛護,對身邊有損環(huán)保現(xiàn)象的勸阻……所有這些,都是我們應(yīng)盡的社會責(zé)任。

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