-
新人教版高中英語必修2Unit 5 Music-Reading and Thinking教案二
1. Get basic information about Eric; read deeply to understand the history and development of the virtual choir.2. Understand what the function of the virtual choir is and how to make a virtual choir.3. Understand the meaning of some languages in the context of the text through question guidance, such as “Many people do not have close friends or contacts who have the same interest in music.” and so on.Step 1 Leading-in1. Answer the following questions.Q1：Do you know the Apps like Tik Tok and Quick Hand?Q2: Do you want to make a Tik Tok video or a Quick Hand video?2. Play a Tik Tok video Step 2: Understanding the title Q1：What does the title mean ?Q2: Is the article a narration or exposition? Why? Q3: Can you change the title ? If you can, what is the title?Step 3: Scanning the whole text and getting the basic information1. Answer the following questions.Q1：Who came up with the idea for a virtual choir?Q2: Where did Eric studied the musical composition?Q3: What is his song?2. Find the main idea of each paragraph3. Deal with some new words.Step 4: Reading carefully to get detailed informationPara 1 How to make a virtual choir1. PreparationA. tools: a virtual camera; an Internet connectionB. hero/heroin: friends or some individuals who have the same interests2. Process
新人教版高中英語必修2Unit 5 Music-Reading for Writing教案二
The Internet celebrity Gao Yifeng. Years ago, he owned 5 companies and the staffs over 1,000, but during the economy crisis, he became nothing but debt. He was so worried that his hair became white overnight. There was a time when he wanted to killed himself. But after listening to the song Start Over by Liu Huan, he decided to cheer himself up. He started a steamed bun shop and gradually became a national chain shops. Now he became successful again.Walter Haddon said, “Music is the medicine of a troubled mind.” Music contains such a pleasant and inspiring force. Music gave him courage and bravery. When he listened to the song, it made his spirit fly like a kite in the wind. Music gave him strength and brought him relief. It was the rock I leant on to become strong and to get through those hard times. I hope none of us have to go through the same kind of suffering that he did. At the same time, we all go through various periods when we feel sad or alone. During those times, music can help us in the same way that it helped him. I hope we all will somehow begin to treasure music and make it a part of our life. Thank you for your listening !5.Revise your writing each other.Does he/she explain how music has changed his/her/someone else’s life?Are some of the rhetorical devices included and used properly ?Does he/she talk about how music makes him/her/someone feel?Is the first word in each sentences capitalised?Does he/she use correct punctuation ?
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(jié)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!
人教版高中語文必修2《采薇》教案2篇
這兩章是對戰(zhàn)爭場面的描寫。寫的是戰(zhàn)車、戰(zhàn)馬、象弭、魚服以及士兵的勞累奔波、饑渴難當，通過這些具體生動的細節(jié)描寫來展現(xiàn)戰(zhàn)爭生活的圖景。而沒有寫戰(zhàn)場上的刀光劍影、廝打拼殺，但戰(zhàn)爭的殘酷已可想見。4“昔我往矣，楊柳依依。今我來思，雨雪霏霏”被視為情景交融的佳句。清人王夫之在論《詩經(jīng)·小雅·采薇》這兩句時說：“以樂景寫哀，以哀景寫樂，一倍增其哀樂?！闭?wù)勀愕目捶?。一以往昔之虛襯眼前之實，以出征之樂襯內(nèi)心之思親之悲痛；二“楊柳依依”與“雨雪霏霏”對比，突出不勝今昔之感；三大雪交加，饑渴難當，情境實悲，以哀景寫哀情。四、交流延伸1寫一首詩或一段文字表達你對“鄉(xiāng)愁”的新的體驗。在全班交流。2課后搜集更多的表現(xiàn)鄉(xiāng)情的詩歌散文作品，將你最感動的一篇拿到班上與同學分享感受。
人教版高中語文必修2《荷塘月色》教案3篇
請問，作者究竟聽到歌聲沒有？”學生回答：“沒有?！薄斑@里是比喻，因為這里用得是‘仿佛’一詞……”對，是比喻。也就是說，作者是用歌聲來比喻荷香，是吧？“但是，“荷香與歌聲有什么可比的共同點嗎？”“荷香與歌聲都是斷斷續(xù)續(xù)、若有若無的?！薄岸译鼥V朧的?！薄皩??！昂上愫透杪暥际恰|縷’的、‘渺?！摹＿@是比喻。這是一種特殊的比喻，錢鐘書先生把它叫做‘通感’。人們通過視覺、聽覺、觸覺、味覺、嗅覺等五官感知外界事物時，在一般情況下，彼此不能交錯；但在特殊情況下，五官功能卻能出現(xiàn)互相轉(zhuǎn)化、彼此溝通的現(xiàn)象叫“通感”，也叫“移覺”。舉幾個例子來說明：詩人艾青曾寫詩這樣描繪日本著名指揮家小澤征爾：‘你的耳朵在偵察，你的眼睛在傾聽……’這也是通感。又如：“那笛聲里有故鄉(xiāng)綠色平原上青草的香味，有四月的龍眼花的香味，有太陽的光明?！保üL《葉笛》）
人教版高中語文必修2《短歌行》教案2篇
教學過程：一、導語毛澤東在《沁園春雪》俯視封建君王“惜秦皇漢武。。。只識彎弓射大雕?！钡绻麣v史上只有一個人可以與他相提并論，這個人只能是魏武帝曹操?！皾L滾長江東逝水，浪花淘盡英雄。是非成敗轉(zhuǎn)頭空，青山依舊在，幾度夕陽紅?！保ā度龂萘x》卷首詞）在歷史的大浪淘沙中，有多少英雄能夠經(jīng)得起歷史的千淘萬漉而流芳百世呢？曹操應該是三國時代留下了濃重一筆的人物。老師總結(jié)，并啟發(fā)他們?nèi)ヂ?lián)系:我們學過他的《觀滄海》“東臨碣石,以觀滄?！边€有《龜雖壽》“神龜雖壽，猷有竟時。老驥伏櫪，志在千里；烈士暮年，壯心不已?！薄肚嗝分鬄⒄撚⑿邸分性退娺^，《三國演義》電視劇播出后，大家和他也就頻頻見面了?！度龂萘x》第48回“宴長江曹操賦詩”中，赤壁之戰(zhàn)前夕，曹操和眾部將一起狂飲，他四顧空闊，心中大喜，與諸將講述自己希望收服江南的雄心壯志。
人教版高中語文必修3《動物游戲之迷》教案2篇
一、內(nèi)容與解析內(nèi)容：科普說明文《動物游戲之謎》。解析：《動物游戲之謎》是高中語文（必修）3第四單元的一篇科普說明文?？茖W是人類認識世界的重要工具，是人類文化的重要組成部分，是標志人類文明的尺度。閱讀科普文章，可以啟迪心志，激發(fā)想象，帶領(lǐng)我們進入全新的科學天地，在科學海洋中遨游。本文思路清晰，內(nèi)容生動，揭開了動物日常游戲行為的神秘面紗，擺出研究者的種種結(jié)論，既讓我們擴大了視野，增長了知識，也讓我們明白了科學探索永無止境。學習本文的重點是提高的科普文的閱讀能力，培養(yǎng)學生勤于探索、勇于鉆研的科學精神。二、教學目標及解析1、理清文章思路，明確本文的說明內(nèi)容和順序。2、品讀文章，感受本文的語言特色。3、激發(fā)探究興趣，培養(yǎng)篩選信息、提取要素及概括敘述的能力。4、挖掘人文內(nèi)涵，培養(yǎng)學生保護動物的意識和勤于探索、勇于鉆研的科學精神。
人教版高中語文必修4《李賀小傳》教案
一、明確目標1．注意小傳的寫作特色，如小傳的“小”以及是怎樣小中見大的。2．引導學生進行綜合把握和比較閱讀以更好地理解課文內(nèi)容，看看在寫法上各自有什么不同。3．一詞多義的準確知識運用二、整體感知1．解題李商隱的《李賀小傳》有別于一般傳記文的客觀直敘，是一篇性情之文；同時也和作者的詩歌風格相異，寫得樸實自然而又不乏意趣。2．本文所體現(xiàn)的“小傳”的特點本文最大的特點在于：小傳雖小，但小中有大、以小見大。其“小”在于：作者并沒有全面勾勒詩人李賀的一生，對他的生平經(jīng)歷也記敘不多，而是選取了他生活中的若干小片段進行插敘，以小片段撐起傳記的主干。此外，在篇幅上，全文寥寥數(shù)百字，語言極為精練。而其“大”又體現(xiàn)在：極小極短的篇幅卻具有很大的容量，集敘事、議論和曲折的抒情于一體。內(nèi)容渾厚，意味深長。
人教版高中語文必修5《逍遙游》教案
六、到此為止，我們了解到，作者對“笑”鯤鵬和別人的蜩與學鳩、斥鴳、宋榮子都一一作了否定。那么請大家討論一下，1、作者對鯤鵬和“知效一官，行比一鄉(xiāng)，德合一君，而征一國者”是不是肯定呢？明確：也都作了否定。否定后者好理解，關(guān)鍵是否定前者不好理解，因為“鯤鵬展翅”早已作為積極的意象被人們廣泛引用。但在本文中，作者在講述這一寓言故事時，突出的不是鯤鵬本身，而是風力，“故九萬里，風斯在下矣，而后乃今培風；背負青天，而莫之夭閼者，而后乃今將圖南”。對風力作用的突出，實際上就是對鯤鵬的否定。作者寫了“笑”的雙方，對“笑”的一方蜩與學鳩、斥鴳、宋榮子都作了否定，對被“笑”的一方鯤鵬和“知效一官，行比一鄉(xiāng)，德合一君，而征一國者”也都作了否定，并且對順便提及的野馬、塵埃、芥、大舟、朝菌、蟪蛄、冥靈、大椿、彭祖、列子等事物或者人物也都作了否定。這種全盤否定的態(tài)度，如果我們借用本文中的一個形象的詞語，可以說是：笑！是的，本文也可以說是：莊子“笑”萬物！
人教版高中語文必修4《短文三篇》教案
③于是，大自然出現(xiàn)了驚人的奇跡，不毛的石縫間叢生出倔強的生命。④或者就只是一簇一簇無名的野草，春綠秋黃。歲歲枯榮。它們只有三兩片長長的細瘦的薄葉，那細微的葉脈，告知你生存該是多么艱難；更有的。它們就在一簇一簇瘦葉下自己生長出根須，只為了少向母體吮吸一點乳汁，便自去尋找那不易被覺察到的石縫。這就是生命，如果這是一種本能，那么它正說明生命的本能是多么尊貴，生命有權(quán)自認為輝煌壯麗，生機竟是這樣地不可扼制。⑤或者就是一團一團小小的山花，大多又都是那苦苦的蒲公英。它們不似田野上的同宗長得那樣茁壯，它們的莖顯得堅韌而蒼老。它們的葉因枯萎而失卻光澤。它們已經(jīng)不能再去為人們作佐餐的鮮嫩的野菜，卻默默地為攀登山路的人準備了一個可靠的抓手。生命就這樣地被環(huán)境規(guī)定著，又被環(huán)境改變著，適者生存的規(guī)律盡管無情。但一切適者就是戰(zhàn)勝環(huán)境的強者。生命現(xiàn)象告訴你，生命就是拼搏。
新人教版高中英語必修2Unit 2 Wildlife Protection-Discovering Useful Structure教案二
2．表示現(xiàn)階段正在進行的被動動作(該動作在說話的瞬間未必正在進行)。Many interesting experiments are being carried out these days.(說話時，并不一定正在進行)3．表示一種經(jīng)常性的被動行為，常和always，constantly 等表示頻度的副詞連用，這種用法常常帶有贊揚或厭惡的感情色彩。He is always being praised by the leader.4．表示按計劃或安排主語將要承受謂語動詞所表示的動作(僅限于少數(shù)及物動詞)。A party is being held tonight.Step 4 Special cases1.像take care of, look after, talk about, think of等動詞與介詞構(gòu)成的短語用于現(xiàn)在進行時的被動語態(tài)時, 其中的介詞不可省略。The ways to stop illegally hunting are being talked about. 2．可與部分情態(tài)動詞連用，表示對正在發(fā)生的事情的推測。She may be being punished by her mother.3．有時可表示按計劃或安排將要進行的一個被動動作。A celebration is being held this weekend for his success.4．某些表示“狀態(tài)、心理活動、存在”等的動詞，如have，want，need，love，一般不用現(xiàn)在進行時的被動語態(tài)，而常用一般現(xiàn)在時的被動語態(tài)。With the population increasing，more land is needed.5．“be＋under/in＋n.”可表示現(xiàn)在進行時的被動意義。My computer is under repair.＝My computer is being repaired.
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 4 History and Traditions-Reading and Thinking教案二
Step 5 While reading---Task 3Read the text again and answer the following questions.Q1: How many countries does the UK consist of ?4 Q2: What are the four countries of the United Kingdom?England, Wales, Scotland and Northern Ireland Q3: Which two were the first to be joined together ?England and WalesQ4: What are the two chief advantages of studying the history of a country ?The first one is to help you understand more about the country and its traditions.The second one is to make visiting it more enjoyable.Q5: What’s the author’s attitude towards studying the history ?Supportive/positiveStep 6 Post reading---Retell the textThe United Kingdom, Great Britain, Britain, England—many people are confused by (1)_____ these different names mean. In the 16th century, the nearby country of Wales (2) __________(join) to the Kingdom of England. In the 19 th century, the Kingdom of Ireland was added to create the United Kingdom of Great Britain and Ireland. Finally, the southern part of Ireland (3) ______ (break) away from the UK, which resulted in the full name we have today. However, most people just use the (4)_________(shorten) name: the UK. The four countries (5)__________ belong to the United Kingdom work together in some areas. There were four sets of invaders and the last group were the Normans. They had castles (6)_________(build) all around England and made changes (7)__________ the legal system. Studying the history of the country will make your visit much more (8)_________(enjoy). The capital city London is (9)___ ancient port city that has a history (10)______(date) back to Roman times. 1. what 2.was joined 3.broke 4.shortened 5.that 6. built 7.to 8.enjoyable 9.an 10.dating Step 6 Homework
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.
人教版新課標高中物理必修2追尋守恒量—能量教案2篇
一、學習任務(wù)分析1．教材的地位和作用在物理學中，能量并不是由功定義的。能量的概念是在人類追尋“運動中的守恒量是什么”的過程中發(fā)展起來的。能量概念之所以重要，就是因為它是一個守恒量。守恒關(guān)系是自然中十分重要的關(guān)系，從中學開始加強學生對守恒關(guān)系的認識是有益的，因為它是極為重要的研究方向。根據(jù)這種認識，所以本節(jié)從追尋守恒量出發(fā)引入能量概念，為能量學習奠定了基礎(chǔ)并把這種物理思想滲透在能量學習的全過程。2．學習的主要任務(wù)“追尋守恒量”一節(jié)，主要是使學生了解守恒思想的重要性。學生在學習本節(jié)課前已經(jīng)學習了能量的有關(guān)知識，在過去的教學中，是先學習能量的概念，而后研究一兩個具體問題，發(fā)現(xiàn)動能與勢能之和在某些過程中不變，由此引出機械能守恒定律?！皺C械能守恒”這個詞學生并不陌生，但是讓學生說出自己對它的認識又不是一件容易的事。
人教版新課標高中物理必修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)點間引力大小的計算。當兩物體間的距離遠遠大于每個物體的尺寸時，物體可以看成質(zhì)點，直接使用萬有引力定律計算。（模型）研究相互接觸的兩個人之間的萬有引力時，不能把他們看作質(zhì)點。（2）當兩物體是質(zhì)量均勻分布的球體時，它們間的引力也可直接用公式計算，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。當研究物體不能看成質(zhì)點時，可以把物體假想分割成無數(shù)個質(zhì)點，求出兩個物體上每個質(zhì)點與另一物體上所有質(zhì)點的萬有引力，然后求合力，這是微積分的思想。萬有引力定律產(chǎn)生于對太陽系行星運動的研究，但它對物質(zhì)運動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雜的現(xiàn)象，無不要歸結(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。
人教版新課標高中物理必修2重力勢能教案3篇
（一）知識與技能1．理解重力勢能的概念，會用重力勢能的定義進行計算。2．理解重力勢能的變化和重力做功的關(guān)系，知道重力做功與路徑無關(guān)。3．知道重力勢能的相對性，知道重力勢能是物體和地球系統(tǒng)共有的（二）過程與方法：用所學功的概念推導重力做功與路徑的關(guān)系，親身感受知識的建立過程（三）情感、態(tài)度與價值觀1．滲透從對生活中有關(guān)物理現(xiàn)象的觀察，得到物理結(jié)論的方法，激發(fā)和培養(yǎng)學生探索自然規(guī)律的興趣．2．培養(yǎng)學生遵守社會公德，防止高空墜物?！窘虒W重點】重力勢能的概念及重力做功跟物體重力勢能改變的關(guān)系。【教學難點】重力勢能的系統(tǒng)性和相對性。【教學方法】啟發(fā)、引導、講練結(jié)合【教學過程】一、新課引入有句話是“搬起石頭砸自己的腳”，從物理的角度看待這一問題，搬起的石頭有了做功的本領(lǐng)，它就具有了能，這種能我們稱為重力勢能。我們今天就來學習重力勢能。二、新課教學
人教版新課標高中物理必修2能量守恒定律與能源教案2篇
世界能源問題的解決途徑是什么?能源，是人類敕以生存和進行生產(chǎn)的不可缺少的資源．近年來，隨著生產(chǎn)力的發(fā)展和能源消費的增長．能源問題已被列為世界上研究的重大問題之一．解決世界能源問題的根本途徑，主要有兩個方面：其一是廣泛開源，其二是認真節(jié)流．所謂開源，就是積極開發(fā)和利用各種能源．在繼續(xù)加緊石油勘探和尋找新的石油產(chǎn)地的同時，積極開發(fā)豐富的煤炭資源，還要大力開發(fā)水能，生物能等常規(guī)能源，加強核能、太陽能，風能、沼氣，海洋能，地熱能以及其他各種新能源的研究和利用，從而不斷擴大人類的能源資源的種類和來源．所謂節(jié)流，就是要大力提倡節(jié)約能源．節(jié)能是世界上許多國家關(guān)心和研究的重要課題，甚至有人把節(jié)能稱為世界的“第五大能源”，與煤、石油和天然氣、水能、核能等并列．在節(jié)能方面，在有計劃地控制人口增長的同時，重點要發(fā)揮先進科學技術(shù)的優(yōu)勢，提高各國的能源利用效率．
人教版新課標高中物理必修1物理學與人類文明教案2篇
1. 課前觀看視頻《物理學與人類文明》2. 分組討論，派代表發(fā)言，談學習感受。主要是物理的地位，物理的學習方法。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)律之外還應該關(guān)注研究問題的方法，學會從先想到抽象，從定性到定量研究問題，學會用數(shù)學方法解決物理問題，學會實驗探究，學會獨立分析問題解決問題的思維習慣。4. 高中物理學習的基本要求高中物理學習應該“重視實驗，勤于思考”和“經(jīng)歷過程，體驗方法”。高中物理學習與初中物理學習雖然有一定區(qū)別，但也不是孤立的，要繼續(xù)堅持初中物理學習中積累的學習方法和體會，重視從正反兩個方面加以總結(jié)和提煉，做到：（1） 認真閱讀，學會自學要學好物理，就要認真閱讀課本。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)會文章段落所表達的物理內(nèi)容，掌握課本敘述物理問題的表達方法。
人教版新課標高中物理必修1物理學與人類文明教案2篇
八、物理學的基礎(chǔ)地位及物理學對人類文明、社會進步的影響。（1） 情景一：磁懸浮實驗：找兩個空心的圓柱片磁鐵，同名磁極相對，穿在同一根竹筷上，用手壓下上面的磁鐵，松手觀察它的運動情況。問題1：上面的磁鐵為什么會跳起來，為什么會懸浮在下面的磁鐵上方？問題2：根據(jù)這個實驗，你會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)，進行磁懸浮列車的研究和制造的，這說明物理學在推動社會進步、人類文明方面起到推動作用。（2） 情景二：感應起電和火花放電實驗：用感應起電機或感應圈產(chǎn)生火花放電，讓學生觀察現(xiàn)象，聞氣味，然后聯(lián)想生活實例。還可以用一張紙試著擋住放電的弧光，最好能引燃紙張，說明雷擊引起火災的現(xiàn)象。問題1：你看、聽到了什么現(xiàn)象？問題2：根據(jù)這個實驗，你會想到那一種自然現(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？