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人教版高中地理必修2交通運輸布局變化的影響精品教案

  • 新人教版高中英語必修2Unit 1 Cultural Heritage-Reading and Thinking教案二

    新人教版高中英語必修2Unit 1 Cultural Heritage-Reading and Thinking教案二

    1. This section focuses on "Understanding how a problem was solved”, which is aimed to guide students to analyze and discuss the challenges and problems faced by cultural heritage protection during the construction of Aswan Dam, as well as the solutions. On the basis of understanding, students should pay attention to the key role of international cooperation in solving problems, and attach importance to the balance and coordination between cultural heritage protection and social and economic development. Students are encouraged to face challenges actively, be good at cooperation, and make continuous efforts to find reasonable ways and means to solve problems.2. Enable students to understand the main information and text structure of the reading text;3. Motivate students to use the reading strategy "make a timeline" according to the appropriate text genre;4. Enable students to understand how a problem was solved;5. Enable students to understand the value of protecting cultural heritage by teamwork and global community;1. Guide students to pay attention to reading strategies, such as prediction, self-questioning and scanning.2. Help students sort out the topic language about protecting cultural relics and understand the narrative characteristics of "time-event" in illustrative style3. Lead students to understand the value of protecting cultural heritage by teamwork and global community;

  • 新人教版高中英語必修2Unit 1 Cultural Heritage-Reading For Writing教案

    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.

  • 新人教版高中英語必修2Unit 3 The Internet-Discovering Useful Structure教案一

    新人教版高中英語必修2Unit 3 The Internet-Discovering Useful Structure教案一

    This unit is about the Internet, which has a great influence to our humans and our lives. During the Listening & Speaking & Talking and Reading and Thinking section, the influence in examples has been shown. Thus, use the Present Perfect Tense is appropriate. However, in order to show the justice or weaken the doer of the behavior/action, it’s better to use the Present Perfect Passive Voice than the Present Perfect Tense. Besides, having learned to use the Present Perfect Passive Voice, students can beautify their language in their writing. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. Step 1 Observe the following sentences, then change the sentences into passive voice.He has been selected to take part in the sports meeting.(肯定句)他已被挑選出來參加運動會。The ink has not been removed from his overcoat.(否定句)墨跡還沒有從他外套上去掉。

  • 新人教版高中英語必修2Unit 3 The Internet-Reading and Thinking教案二

    新人教版高中英語必修2Unit 3 The Internet-Reading and Thinking教案二

    Q5:What's Jan's next goal?Her next goal is to start a charity website to raise money for children in poor countries.Q6:What can we learn from her experiences?We learn that when we go through tough times, we can find help and support from other people online. We learn that we can feel less lonelyStep 5: While reading---rethinkingQ1: What is Jan’s attitude to the Internet ?Thankful/Grateful, because it has changed her and her life.Q2: What writing skills is used in the article ?Examples(Jan’s example, the 59-year-old man’s and the 61-year-old woman’s example)Q3: Can you get the main idea of the article ?The Internet has changed Jan’s life/Jan’s life has been changed by the Internet.Step 6 Post reading---Retell the storyMuch has been written about the wonders of the World Wide Web. There are countless articles (1)telling(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)more(much) for people than simply make life more convenient. People’s lives (3) have been changed(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)stuck(stick) at home with only her computer to keep (5)her(she) company. She joined an online group (6)where she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)benefits(benefit). She was so inspired (8)that she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)for children in poor countries. Jan’s life has been (10)greatly(great) improved by the Internet.

  • 新人教版高中英語必修2Unit 3 The Internet-Reading and Thinking教案一

    新人教版高中英語必修2Unit 3 The Internet-Reading and Thinking教案一

    Paragraph 3. Jan decided to start an IT club to teach old people how to use computers and the Internet. Paragraph 4. Jan has started taking online classes to learn more about how to use the Internet to make society better. Paragraph 5. Jan’s life has been greatly improved by the Internet. Step 5: Critical thinking:(1)How do you arrange your time spent on study and the Internet? Is it reasonable? I usually surf the Internet using my mobile phone for only an hour after class, and it is reasonable for me.(2)What are your online activities? Are they safe? I chat with my friends, read news and play games. I never give away my private information so I think they are safe.Step 4: summary Much has been written about the wonders of the World Wide Web. There are countless articles (1)______(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)_____(much) for people than simply make life more convenient. People’s lives (3) _________________(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)_____(stick) at home with only her computer to keep (5)___(she) company. She joined an online group (6)______ she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)_______(benefit). She was so inspired (8)____ she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)___ children in poor countries. Jan’s life has been (10)______(great) improved by the Internet. Step 5 Homework:Review what we have learned and find out the key language points in the text.

  • 新人教版高中英語必修2Unit 4 History and Traditions-Discovering Useful Structure教案二

    新人教版高中英語必修2Unit 4 History and Traditions-Discovering Useful Structure教案二

    This teaching period mainly deals with grammar: The past participle is used as attributive and objective complement.1. Guide students to review the basic usages of the past participle used as attributive and objective complement.2. Lead students to learn to use some special cases concerning the past participle used as attributive and objective complement flexibly.3. Strengthen students’ great interest in grammar learning.1. Help students to appreciate the function of the past participle used as attributive and objective complement.2. Instruct students to write essays using the past participle used as attributive and objective complement.Step1:溫故而知新。Analyze the underlined phrases and then sum up the common usages of the past participles.1.(教材P41)They had castles built(build) all around England, and made changes to the legal system.2.(教材P42)They use the same flag, known(know) as the Union Jack,...3.(教材P42)Judy and I had our car parked(park) in an underground car park near Trafalgar Square, where we could get our car battery charged(charge).Common points: f the past participle used as attributive and objective complement.Step 2:過去分詞作定語時的意義1.及物動詞的過去分詞作定語,在語態(tài)上表示被動;在時間上,常表示動作已經(jīng)發(fā)生或完成,有時也不表示時間性。Our teacher watched us doing the experiment and gave us a satisfied smile at last.我們的老師看著我們做實驗,最后給了我們一個滿意的微笑。The plan put forward at the meeting will be carried out soon.會上提出的計劃將很快被執(zhí)行。2.不及物動詞的過去分詞作定語,它不表示被動意義,只強調(diào)動作完成。Many little kids like gathering fallen leaves in the yard.

  • 新人教版高中英語必修2Unit 4 History and Traditions-Listening&Speaking&Talking教案二

    新人教版高中英語必修2Unit 4 History and Traditions-Listening&Speaking&Talking教案二

    Listening and Speaking introduces the topic of “Take part in a youth project”. The listening text is an interview about "sharing views on historical sites". Through listening to a dialogue between Chinese and foreign students on the way to the Confucius Temple, students can understand their views on the Confucius Temple, Confucius, Confucius' descendants and Confucius' educational thoughts, so as to realize and think about the profound influence of Confucius and his thoughts on Chinese historical tradition. At the same time, the dialogue naturally integrates English idioms and mentions Shakespeare, the British playwright, so as to provide language materials and context for students to understand English idioms and related cultural allusions, as well as to compare Chinese and foreign cultures, which is helpful for students to understand and express the language such as history, tradition, culture and custom significant impact.Text analysis: listening text is a dialogue between a British student and a Chinese student when he goes to the Confucius Temple. When William, a British student, visited the Confucius Temple, he asked Xiao Kong, a Chinese student, for directions. Xiao Kong was just going to the Confucius Temple to meet with the members of the research group, so they went together and exchanged their views on the Confucius Temple, Confucius, Confucius' descendants and Confucius' educational thoughts. From the perspective of foreign tourists, this paper describes their thoughts on Confucius, the great son of Confucius, who had a profound impact on Chinese history and cultural tradition, and his education.Listening and Talking introduces a visit to a historic tourist destination. Tourism is a common way to understand a country's history, culture, and customs and so on. Students listen to the dialogue between Xiao Yan, a youth hostel Usher, and Paul, a backpacker, to learn about Pingyao's famous historical and cultural attractions and Paul's travel experience and experience as a foreign tourist.

  • 新人教版高中英語必修2Unit 4 History and traditions教案

    新人教版高中英語必修2Unit 4 History and traditions教案

    這個地區(qū)有著深厚的傳統(tǒng)。既學既練:為了讓更多的外國游客了解中國文化,欣賞中國美麗的自然風光,感受中國發(fā)生的巨大變化,某外文雜志社將出版一本英語小冊子來介紹中國的旅游景點。該雜志社邀請你為該小冊子寫一篇英語短文來介紹杭州,內(nèi)容包括:1.杭州的位置(中國東南部)、面積(16 000多平方公里)及歷史(2 200多年)等;2.杭州的旅游特色(自然風景、傳統(tǒng)文化、特色小吃等);3.希望更多的游客來杭州參觀。注意:1.詞數(shù)80左右;2.可適當增加細節(jié),以使行文連貫。Located in the southeast of China, Hangzhou is a beautiful city.Dating back more than 2,200 years, Hangzhou covers an area of more than 16,000 square kilometers.In Hangzhou, you can visit the West Lake, whose scenery is fascinating.In addition, you can’t miss its cultural relics and historical sites, from which you will learn more about excellent Chinese traditional culture and traditions.In Hangzhou, the special snacks are famous and visitors from different parts of the world think highly of them.As a tourist attraction, Hangzhou attracts a large number of visitors from home and abroad every year.Once you come to China, Hangzhou is a scenic spot you can’t miss.

  • 新人教版高中英語必修2Unit 5 Music-Listening&Speaking&Talking教案

    新人教版高中英語必修2Unit 5 Music-Listening&Speaking&Talking教案

    choir memberspeople to run food stands people to sell festival ticketspeople to sell music CDspeople to set up equipmentmusical performersStep 2: Listen to the announcement again and answer the questions. ? 1. What kind of songs will Grace Davis sing at the festival?? 2. Who can try out as a performer?? 3. What can those who think they do not have musical talent do?? 4. How can students volunteer to take part?? Talking about preferences:? Would you prefer doing ..?? What would you prefer to do?? Would you rather do .... or ….?? What would you rather do?? I'd prefer .... to ..? I'd rather have ... than .. Step 3: Speaking ProjectWork in groups. Role-play the conversation or make a new one.? Debbie: Where have you been? You missed the announcement about the music festival.? John: I was at the doctor's office. Music festival?? Frank: Yes, it's going to be next month on the school sports field. John, you can play the piano. How about playing it at the festival?? John: Well, I'd rather play the violin. I can play Liang Zhu.? Frank: Wow! Sounds good. What about you, Debbie? ? Debbie: Actually, I don't have much musical ability. I'd prefer just to help out with the crowds.? Frank: You can sell tickets or work at a food stand.? John: So can I assume that the aim of the festival is to raise money?? Debbie: Yes. All of the money will go to charity.

  • 新人教版高中英語必修2Unit 5 Music-Reading and Thinking教案一

    新人教版高中英語必修2Unit 5 Music-Reading and Thinking教案一

    This section focuses on "learning about experiencing music Online". This virtual choir is a new form of music performance. Members from all over the world don't need to love to come to a place. Instead, they use the new technology to model the various parts and wonderful virtual harmony group of music in the family. Students need to understand the main meaning of each paragraph. Finding topic sentences is an important way to understand the general idea of a paragraph. After the topic sentence, it is usually the detail sentence that supports and explains the topic sentence. Some paragraphs have obvious subject sentences, for example, the first sentence of the second paragraph is the subject sentence of the paragraph, and the following sentenceStudents need to pay attention to the topic sentences and key sentences, and then pay attention to how the sentences after the meaning explain, explain and support the topic sentences or key sentences before.1.Guide students to learn about experiencing music online2.Guide students to scan and circle the information in the text.3.Guide students to find the numbers and dates to fill in the timeline.4.Guide students to learn more about music by completing the sentences with the correct forms of the words and phrases. And then make a mind map about the outline of the passage.1. Guide students to pay attention to reading strategies, such as prediction, self-questioning and scanning.2. Help students sort out the main meaning of each paragraph and understand the narrative characteristics of "timeline” in illustrative style.3. Lead students to understand the changes that have been caused by the Internet.

  • 新人教版高中英語必修2Unit 5 Music-Reading For Writing教案一

    新人教版高中英語必修2Unit 5 Music-Reading For Writing教案一

    (4)Now we have heard a number of outstanding speeches ... 我們已經(jīng)聆聽了許多精彩的發(fā)言……(5)Because we wanted the nations of the world, working together, to deal with ... 因為我們希望全世界各國團結起來去應對……(6)And if we do not act ... 如果我們不采取行動……(7)Now, I share the concerns that have been expressed ... 我也同意對于……表達的擔心(8)Let us show the world that by working together we can ... 讓我們告訴全世界,通過一起努力我們可以……(9)It is now time for us to ... 是時候我們……(10)And I have always wished that ... 我一直希望……(11)Thank you for letting me share this day with me.感謝你們和我共度這一天。實踐演練:假如你是高中生李華,你校將舉辦一次以“音樂”為主題的演講比賽,請你按照主題,寫下你的演講稿。注意:詞數(shù)100左右。First of all, thank you for listening to my speech. My topic is: love music like love yourself.Music is like the air we need to maintain our normal lives around us. You can't imagine how terrible a world without music would be. Movies and TV shows have no music, only dry conversations and scenes; mobile phones only vibrations; streets only noisy crowds; cafes, western restaurants only depressed meals. What a terrible world it is!As a student, I hope we all can enjoy the fun brought by music in our spare time. Instead of just listening to music, we can even make our own music. Let's enjoy the fun of music!Thanks again for your attention!

  • 人教版高中歷史必修2世界經(jīng)濟的區(qū)域集團化教案2篇

    人教版高中歷史必修2世界經(jīng)濟的區(qū)域集團化教案2篇

    1、知識與能力:(1)了解歐洲聯(lián)盟的形成過程,剖析歐洲國家的一體化由經(jīng)濟實體向政治實體轉(zhuǎn)變的原因和實質(zhì);(2)了解北美自由貿(mào)易區(qū)的形成過程,由北美自由貿(mào)易區(qū)的形成原因分析世界經(jīng)濟全球化與經(jīng)濟區(qū)域集團化之間的關系和影響。(3)了解亞太經(jīng)濟合作組織的形成過程,明確其特點及出現(xiàn)此特點的原因。掌握中國在加入該組織后所發(fā)揮的作用,并由此引申出中國在經(jīng)濟區(qū)域集團化過程中所發(fā)揮的作用。2、過程與方法:(1)通過學生對三大經(jīng)濟區(qū)域集團形成過程和特點的比較,鍛煉學生把具體的歷史現(xiàn)象與整體的社會背景聯(lián)系的能力,培養(yǎng)學生建立起全面的歷史觀。(2)通過對經(jīng)濟區(qū)域集團化趨勢的出現(xiàn)和它與經(jīng)濟全球化之間關系的分析,培養(yǎng)學生辨證的看問題,透過現(xiàn)象分析本質(zhì)的能力。

  • 人教版高中政治必修3鑄牢中華民族的精神支柱教案2篇

    人教版高中政治必修3鑄牢中華民族的精神支柱教案2篇

    【教學重點】怎樣弘揚和培育中華民族精神?!窘虒W策略】(1)通過引導學生學習和探討,使學生在解決實際問題的過程中了解弘揚和培育民族精神,最重要的是發(fā)揮“主心骨”的作用;必須繼承和發(fā)揚中華民族的優(yōu)良傳統(tǒng);必須正確對待外來思想文化的影響;必須與弘揚時代精神相結合。以愛國主義為核心的民族精神和以改革創(chuàng)新為核心的時代精神,相輔相成,相互支撐,統(tǒng)一于建設中國特色社會主義的偉大實踐。(2)通過踐行體驗,結合美國傳媒對世界的巨大影響以及不同國家強化民族精神教育的事例,引導學生體會和感悟民族精神對于一個國家、一個民族的生存和發(fā)展的重要性,理解我國當前弘揚和培育民族精神的重要意義;回顧歷史經(jīng)驗教訓,體會和思考我們應該弘揚和培育什么樣的民族精神;面對世界范圍各種思想文化相互激蕩,體會和思考我們應如何弘揚和培育民族精神?!咎骄恐笇А靠煞秩齻€步驟進行。

  • 人教版高中政治必修3永恒的中華民族精神教案2篇

    人教版高中政治必修3永恒的中華民族精神教案2篇

    當你看到他們獲得冠軍登上金牌領獎臺時,見到中華人民共和國國旗冉冉時升起時,聽到中華人民共和國國歌奏響時,作為一名中國人,即使你對這兩項運動都不感興趣,你有什么樣的感受?感覺到作為中國人的無比光榮與自豪 你呢 ? 你呢 ?你們都是一樣,我和絕大多數(shù)中國人都有這種共同的感受。這是在和平年代,而在民族危亡時期,人們也有共同的行動 例如1900年八國聯(lián)軍進攻北京的途中遇到了民間組織的頑強抵抗,中國人民手持刀槍棍棒,同槍炮武裝的侵略軍展開斗爭,血肉橫飛,依然面無懼色,戰(zhàn)到最后一人,也要奮勇拼殺。由以上兩種情況,我們大家思考是什么使得他們有著共同的感受,有著共同的行動?提示:(若換作是大和民族的人他在剛才的情境中則不會有呢?)顯而易見,我們是中華民族,有著共同的東西,共同的思想情感,共同的行為準則,而這些共同的東西就是我們所說的中華民族精神。

  • 人教版高中政治必修3色彩斑斕的文化生活教案2篇

    人教版高中政治必修3色彩斑斕的文化生活教案2篇

    六、學習效果評價設計1、評價方式:我對學習效果的評價,來自兩個方面。一是教師的教授是否認真、嚴肅、科學;二是學生的學習成果如何,是否達成了事先預設的教學目標,是否在學習過程中有提高的過程。評價的方式有:同伴評價;教師自我評價和反思;學生反饋。2、評價量規(guī):我設置了幾個問題用于課后的教學評價:(1)教學目標是否符合課標要求,是否符合三貼近原則,是否體現(xiàn)學生學習效果的生成性和過程性。(2)學習所用資源是否來自生活實際,是否真實,是否是學生感興趣的問題。(3)教師在課堂教學過程中是否能有效的通過提問和資料的展示分析,引導學生自己生成思考過程,而不是“教師代替學生的思考”。(4)學生參與的廣度和態(tài)度,學生是否提出有意義的觀點和問題。學生的回答是否是實話。

  • 人教版高中歷史必修1世界多極化趨勢的出現(xiàn)教案2篇

    人教版高中歷史必修1世界多極化趨勢的出現(xiàn)教案2篇

    一、 教學目標 (一)知識與能力通過了解多極化趨勢和對世界的影響、歐盟的形成和擴展、日本成為經(jīng)濟大國的過程和原因、中國和第三世界的崛起等基本史實,培養(yǎng)學生綜合探究和歸納知識的能力(二)過程與方法以合作學習的“創(chuàng)設情境—目標顯示—自學嘗試—合作學習—成果匯報—總結評價”模式為主線,以學生自主探究活動為主體,以教師點撥為主導,以培養(yǎng)學生學習的興趣和能力為中心,來優(yōu)化課堂教學。教師創(chuàng)設重大國際事件的情境,讓學生親自探索各個主要國家對朝鮮戰(zhàn)爭和伊拉克戰(zhàn)爭立場和態(tài)度的決策,培養(yǎng)學生解讀歷史信息能力,并能夠根據(jù)自身的實際情況和外部環(huán)境,正確應對重大事件。 (三)情感態(tài)度與價值觀提高學生對二戰(zhàn)后美蘇兩極以外的各種政治經(jīng)濟力量增長的認識,初步理解世界多極化趨勢的形成及影響,樹立世界走向多極化是不可阻擋的歷史潮流的價值判斷標準。

  • 人教版高中歷史必修2對外開放格局的初步形成教案

    人教版高中歷史必修2對外開放格局的初步形成教案

    (三)初步形成:1、格局:通過二十多年的改革開放,我國已形成經(jīng)濟特區(qū)、沿海開放城市、沿海開放區(qū)、沿江開放港口城市、沿邊開放城鎮(zhèn)、內(nèi)地省會開放城市的開放體系。這個體系的形成,標志我國全方位、多層次、寬領域的對外開放格局的初步形成。2、特點:全方位、多層次、寬領域全方位、多層次、寬領域分別指的什么?“全方位”,就是既對發(fā)達國家開放,也對發(fā)展中國家開放,對世界所有國家開放?!岸鄬哟巍保褪歉鶕?jù)各地區(qū)的實際和特點,通過經(jīng)濟特區(qū)、沿海開放城市等不同開放程度的各種形式,形成全國范圍內(nèi)的對外開放?!皩掝I域”不僅在經(jīng)濟領域,也涉及到保險、郵電通信等服務貿(mào)易以及環(huán)保、科技、醫(yī)療衛(wèi)生、體育、文化、教育等領域的開放。

  • 人教版新課標高中物理必修2太陽與行星間的引力教案2篇

    人教版新課標高中物理必修2太陽與行星間的引力教案2篇

    【學習內(nèi)容分析】在行星運動規(guī)律與萬有引力定律兩節(jié)內(nèi)容之間安排本節(jié)內(nèi)容,是為了更突出發(fā)現(xiàn)萬有引力定律的這個科學過程。如果說上一節(jié)內(nèi)容是從運動學角度描述行星運動的話,那么,本節(jié)內(nèi)容是從動力學角度來研究行星運動的,研究過程是依據(jù)已有規(guī)律進行的演繹推理過程。教科書在尊重歷史事實的前提下,通過一些邏輯思維的鋪墊,讓學生以自己現(xiàn)有的知識基礎身于歷史的背景下,經(jīng)歷一次“發(fā)現(xiàn)”萬有引力的過程,因此體驗物理學研究問題的方法就成為主要的教學目標?!緦W情分析】在學太陽對行星的引力之前,學生已經(jīng)對力、重力、向心力、加速度、重力加速度、向心加速度等概念有了較好的理解,并且掌握自由落體運動和圓周運動等運動規(guī)律,能熟練運用牛頓運動定律解決動力學問題。已經(jīng)完全具備深入探究和學習萬有引力定律的起點能力。所以在推導太陽與行星運動規(guī)律時,教師可以要求學生自主地運用原有的知識進行推導,并要求說明每一步推理的理論依據(jù)是什么,教師僅在難點問題上做適當?shù)狞c撥。

  • 人教版新課標高中物理必修2探究彈性勢能的表達式教案2篇

    人教版新課標高中物理必修2探究彈性勢能的表達式教案2篇

    “做功的過程就是能量轉(zhuǎn)化過程”,這是本章教學中的一條主線。對于一種勢能,就一定對應于相應的力做功。類比研究重力勢能是從分析重力做功入手的,研究彈簧的彈性勢能則應從彈簧的彈力做功入手。然而彈簧的彈力是一個變力,如何研究變力做功是本節(jié)的一個難點,也是重點。首先,要引導學生通過類比重力做功和重力勢能的關系得出彈簧的彈力做功和彈簧的彈性勢能的關系。其次,通過合理的猜想與假設得出彈簧的彈力做功與哪些物理量有關。最后,類比勻變速直線運動求位移的方法,進行知識遷移,利用微元法的思想得到彈簧彈力做功的表達式,逐步把微分和積分的思想滲透到學生的思維中。本節(jié)課通過游戲引入課題,通過生活中拉弓射箭、撐桿跳高和彈跳蛙等玩具以及各種彈簧等實例來創(chuàng)設情景,提出問題。給學生感性認識,引起學生的好奇心;讓學生對彈簧彈力做功的影響因素進行猜想和假設,提出合理的推測,激發(fā)學生的探索心理,構思實驗,為定性探究打下基礎。然后,引導學生通過類比重力做功與重力勢能的關系得出彈簧彈性勢能與彈簧彈力做功的關系。

  • 人教版高中政治必修2民主選舉:投出理性的一票教案

    人教版高中政治必修2民主選舉:投出理性的一票教案

    教師活動:那種“選舉與我無關”,“選誰都可以”的想法,是公民意識不強、主人翁意識不強的表現(xiàn)。那么,怎樣才能行使好自己的選舉權呢?請同學們根據(jù)上面的學習,談談自己的想法。學生活動:思考討論教師點評:2、 如何行使好自己的選舉權(1)要不斷提高自己參與民主選舉的素養(yǎng),端正參加選舉的態(tài)度,提高選舉能力,選出切實能代表人民利益的人。(2)要增強主人翁責任感和公民參與意識,積極參加選舉,認真行使自己的選舉權。(3)要不斷提高政治參與能力,在理性判斷基礎上,鄭重投出自己的一票。(三)課堂總結、點評本節(jié)內(nèi)容講述了我國的選舉方式以及如何珍惜自己的選舉權利的有關知識,懂得我國是人民民主專政的社會主義國家,人民當家作主,應該增強主人翁責任感,自覺珍惜并運用好選舉權,以促進我國的民主政治建設,維護人民的根本利益。

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