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人教版高中政治必修4綜合探究:求真務實,與時俱進教案

  • 新人教版高中英語必修2Unit 2 Wildlife Protection-Listening and Speaking教案

    新人教版高中英語必修2Unit 2 Wildlife Protection-Listening and Speaking教案

    This lesson is about wildlife protection. The listening and speaking is about “How to protect endangered wildlife ?” Faced with the facts and numbers of wildlife loss, people begin to detect the reasons, then people such as the celebrities (Prince William and Yao Ming) are calling on to protect them. So students are guided to enhance the awareness of protecting wildlife and try to take part in some volunteer activities of protecting wildlife.1. Predict the content by using visuals. 2. Learn to use the sentences such as “I’m concerned about.... But now they are in danger. I want to know the reasons/why./ What can we do to protect them ?3. Learn from the stars like Prince William and Yao Ming and enhance the awareness of protecting wildlife.4. Guide students to try to put forward the solutions to the problems of wildlife protection and then discuss them with partners and present the results of discussion.5. Master the pronunciation of stressed syllables.1. Learn from the stars like Prince William and Yao Ming and enhance the awareness of protecting wildlife.2. Guide students to try to put forward the solutions to the problems of wildlife protection and then discuss them with partners and present the results of discussion.3. Learn to use the sentences such as “I’m concerned about.... But now they are in danger. I want to know the reasons/why./ What can we do to protect them ?4. Master the pronunciation of stressed syllables.Part A Listening and Speaking--- How to save endangered wildlifeStep 1 Lead in1. Point at the pictures on P14 and ask Q1: What message do these posters share?

  • 新人教版高中英語必修2Unit 2 Wildlife Protection-Reading and Thinking教案二

    新人教版高中英語必修2Unit 2 Wildlife Protection-Reading and Thinking教案二

    The theme of this unit is human and nature, focusing on the theme of wildlife protection. Nature is a complex ecosystem, in which there are delicate balance between animals and plants. Because of the role of the food chain, the extinction of one species will produce influence, causing a series of chain reaction. Large scale extinction of species will have a serious and even irreversible impact on the ecosystem, resulting in immeasurable losses. Therefore, it is of great significance to protect wild species. To protect wild species is to protect human beings themselves. The motto of this unit is "when the buying stops, the killing can too,” which is a public service advertising slogan to protect wildlife. It tells people that every rhinoceros horn, every fur, every bowl of shark fin soup, every Ivory product, and every tiger bone product, etc. consumed by human beings, are innocent wild animals slaughtered behind them. The mission of wild aid is to ban illegal trade in endangered wildlife and mitigate climate change. It aims to educate the public to reduce the consumption demand for endangered wildlife products through public publicity and improve the awareness of environmental protection.1. Improve the awareness of wildlife protection by acquiring the knowledge of wildlife protection.2. Focus on environmental protection and protection of all lives.3. Analysis of the living environment of wild animals with appropriate thinking mode.4. Skillfully use the vocabulary and grammar knowledge of this unit to cultivate self-study ability according to the unit content5. Develop cooperative learning ability through discussion and other ways1. Enable the Ss to talk about the current situation of wild animals.2. Guide the Ss to summarize the main idea of each paragraph as well as the main idea of the text.

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

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

    1. 標題首先根據(jù)海報的特點、格式寫明標題。海報中往往把內容作為大標題。例如: Save the earth, Save the birds。2. 正文部分不同的海報其正文部分的側重點不同。對于介紹性的海報, 首先要引出話題, 其次列出原因, 最后是總結。對于宣傳類的海報, 要寫明具體內容, 如: 活動內容, 地點以及參加活動的注意事項, 主持或舉辦單位等。1. 圖片: 要選擇引人注目的圖片, 與主題要相關, 色彩明亮。話題句式 1. It is a treasure of our country. 它是我國的國寶。2. Believe it or not, at present only several thousand pandas exist in the world. 信不信由你, 目前世界上僅現(xiàn)存幾千只熊貓。 3.It’s because of human activities that tigers are endangered. 正是因為人類的活動, 老虎處于瀕危的狀態(tài)。4. Many wild animals are in danger of dying out. 很多野生動物面臨著滅絕的危險。 5. The government has taken effective measures to protect them. 政府已采取有效的措施來保護它們。6. People should raise the awareness of the protection of wild animals. 人們應該提高保護野生動物的意識。 7. It’s amazing that there are merely less than 1, 000 finless porpoises living in China. 非常令人吃驚, 目前中國僅有不足1 000只江豚。

  • 新人教版高中英語必修2Unit 3 The Internet-Discovering Useful Structure教案二

    新人教版高中英語必修2Unit 3 The Internet-Discovering Useful Structure教案二

    This teaching period mainly deals with grammar “The Present Perfect Passive Voice.” To begin with, teachers should lead students to revise what they have learned about the Present Perfect Passive Voice. And then, teachers move on to stress more special cases concerning this grammar。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 the Present Perfect Passive Voice2. Lead students to learn to use some special cases concerning the Present Perfect Passive Voice 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 the Present Perfect Passive Voice in a sentence2. Instruct students to write essays using the proper the Present Perfect Passive Voice.觀察下列句子特點,總結共同點。1.(教材P28)Much has been written about the wonders of the World Wide Web.2.(教材P28)But the Internet has done much more for people than simply make life more convenient.3.(教材P28)Many people have been helped by the club.4.(教材P28)She no longer feels lonely, and her company has become quite successful.5.(教材P32)Today I thought I’d blog about a question that has been asked many times—how do you stay safe online and avoid bad experiences on the Internet?

  • 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-Listening &Speaking&Talking教案二

    新人教版高中英語必修2Unit 3 The Internet-Listening &Speaking&Talking教案二

    From the pictures in the text and the title--- choose the best app, we can know that this part is about how to save money by using apps.Step 2 While-listening1. Laura and Xiao Bo are talking about apps. Listen to their conversation and find out what apps they want.Xiao Bo is looking for a(n) exercise app to help him get in shape.Laura would like an app for getting rich and another that will make her grades better.2. Listen again. Are the sentences true T or false F?1). Both of Xiao Bo's apps keep track of the steps he takes._____2). Xiao Bo's second app can help him make a fitness plan._____3). Laura needs an app that will help her get discounts.______4). Laura needs an app that will add money to her bank account._______F T F T3. Listen once more and tick the sentence you hear. Underline the words used to express predictions, guesses, and beliefs.Predictions, Guesses, and Beliefs________It might help me walk more.________My guess is that it wouldn't work.________I imagine this app would help me get fit faster________I suppose that would be good.________I guess you could save a little with this app.________I suppose there would be some problems, too.________I believe this app could help me get thinner.

  • 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 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-Discovering Useful Structures教案一

    新人教版高中英語必修2Unit 5 Music-Discovering Useful Structures教案一

    Step1:自主探究。1.(教材P52)Born(bear) in the USA on 2 January 1970, Whitacre began studying music at the University of Nevada in 1988.2.(教材P52) Moved(move) by this music, he said, “It was like seeing color for the first time.”3.(教材P56)I was very afraid and I felt so alone and discouraged(discourage).4.(教材P58)Encouraged(encourage) by this first performance and the positive reaction of the audience, I have continued to play the piano and enjoy it more every day.Step2:語法要點精析。用法1:過去分詞作表語1).過去分詞可放在連系動詞be, get, feel, remain, seem, look, become等之后作表語,表示主語所處的狀態(tài)Tom was astonished to see a snake moving across the floor.湯姆很驚訝地看到一條蛇正爬過地板。Finally the baby felt tired of playing with those toys.終于嬰兒厭倦了玩那些玩具。注意:1).過去分詞作表語時與被動語態(tài)的區(qū)別過去分詞作表語時,強調主語所處的狀態(tài);而動詞的被動語態(tài)表示主語是動作的承受者,強調動作。The library is now closed.(狀態(tài))圖書館現(xiàn)在關閉了。The cup was broken by my little sister yesterday.(動作)昨天我妹妹把杯子打碎了。2)感覺類及物動詞的現(xiàn)在分詞與過去分詞作表語的區(qū)別過去分詞作表語多表示人自身的感受或事物自身的狀態(tài),常譯作“感到……的”;現(xiàn)在分詞多表示事物具有的特性,常譯作“令人……的”。

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

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

    This lesson is about music. Students can classify the types of music through the instruments and its sound and can talk about their preferences about music, even join some activities and play a role in them according to their musical talents. On the basis, they are guided to use the languages to express their preferences and some plosive sounds and their rules.1. Classify the music types through the instruments and its sound.2. Listen and understand what the speakers’ preferences are and the reasons; talk about their own preferences and give their own reasons, using these sentences: “What kind of music do you like? And why? “ “Because it makes/gives me energy/peaceful.../touches my heart...”.3. Learn some plosives and the rules.4. Join some activities and play a role in them according to the talents. 1. Listen and understand what the speakers’ preferences are and the reasons;2. talk about their own preferences and give their own reasons, using these sentences: “What kind of music do you like? And why? “ “Because it makes/gives me energy/peaceful.../touches my heart...”.3. Learn some plosives and incomplete plosives and its rules.Step 1 Lead inPoint at the pictures on P50 and ask Q1: What are the people doing in the pictures below?Q2: What kind of music they are?Then play the MP3s one by oneStep 2 ListeningTask 1: A reporter from the school newspaper is interviewing students about music. Listen to the interviews. Draw lines between the words to make complete sentences. Some words will not be used.

  • 新人教版高中英語必修2Unit 5 Music-Reading and Thinking教案二

    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 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教案二

    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

    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!

  • 人教版高中地理必修1河流地貌的發(fā)育教案

    人教版高中地理必修1河流地貌的發(fā)育教案

    【引入新課】同學們在河邊玩耍的時候不知注意到如圖中所展示的場面沒有?(注意到了)那么同學們知道圖中A、B、C它們的名稱分別是什么嗎?(不知道)它們的名稱簡單的講可以統(tǒng)稱為河流地貌。至于它們的具體名稱和形成原理就是我們今天要討論的問題。一、河流地貌【介紹】河流地貌是自然界中最常見的地貌之一。按照成因,可以將河流地貌分為侵蝕地貌和堆積地貌,它們的形成和發(fā)展主要與外力作用有關?!景鍟?、分類: 侵蝕地貌和堆積地貌【過渡】我們首先來看一下河流侵蝕地貌【板書】2、河流侵蝕地貌【介紹】河流在流動過程 中,會破壞并掀起地表的物質,形成侵 蝕地貌。河流侵蝕地貌是由溯源侵蝕、下蝕和側蝕共同作用形成的。【引導讀書】請同學們快速閱讀教材P83倒數(shù) 第二段,添出以下表格。

  • 人教版高中地理必修1大規(guī)模的海水運動教案

    人教版高中地理必修1大規(guī)模的海水運動教案

    4.海洋污染(1)閱讀書本P64,由學生歸納:(2)展示圖片資料:“威望號油輪泄漏事故”【討論】石油污染將對該海區(qū)的生態(tài)環(huán)境造成怎樣的影響?【小結】本節(jié)課我們從四個方面了解了洋流對地 理環(huán)境和人類活動的影響,重點學習洋流對氣候和對漁場形成的影響。同學們聽說過“厄爾尼諾”現(xiàn)象嗎?“厄爾尼諾”現(xiàn)象會影 響秘魯漁場的漁獲量;也會對氣候產(chǎn)生影響,導致全球氣候異常?!禾骄俊吧衿娴亩驙柲嶂Z”現(xiàn)象』學習小組交流【小結】“厄爾尼諾”現(xiàn)象還有許多不解之謎,其中之一是形成原因,尚未能解釋清楚。有人認為是南半球東南信風減弱造成的,也有人認為是大氣環(huán)流減弱造成的結果;且“厄爾 尼諾”現(xiàn)象發(fā)生有沒有自身的規(guī)律?發(fā)生周期長短受什么制約?等等,這些謎團等待我們去一一解開。

  • 人教版高中地理必修1常見天氣系統(tǒng)教案

    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

    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山岳的形成教案

    人教版高中地理必修1山岳的形成教案

    【轉折過渡】除了以上所說的褶皺山和斷層山之 外,是否還有其他類型的山脈呢?試舉一例說明?!緦W生思考后回答】有,如富士山屬于火山。【教師總結】同學們回答的很好,還有火山,那么火山是如何形成的呢?這就是我們要研究的下一個問題?!景鍟?、火山【指導讀書】請同學們閱讀教材P81思考:①玄武巖高原和火山有什么聯(lián)系與區(qū)別? ②火山由哪幾部分構成的?③火山的規(guī)模是否相同?【學生回答】①聯(lián)系:玄武巖高原和火山都是由于處于地下深處的巖漿,在巨大的壓力作用下,有時候會沿著地殼的薄弱地帶噴出地表而形成的。區(qū)別:玄武巖高原是巖漿沿著地殼的線狀裂隙流出,往往比較寬廣。如哥倫比亞高原?;鹕绞菐r漿沿著地殼的中央噴出口或管道噴出。如我國長白山的主峰。②火山由火山口和火山錐兩部分組成。③火山的規(guī)模大小不一,大火山的相對高度可達4 000~5 000米,火山口直徑為數(shù)百米;小火山的相對高度不及100米。

  • 人教版高中地理必修1太陽對地球的影響教案

    人教版高中地理必修1太陽對地球的影響教案

    當時,不只發(fā)生了太陽風暴,同時還有其它的現(xiàn)象發(fā)生,導致災難巨大。 如果,這些現(xiàn)象單獨地發(fā)生,結果就會是另外一個樣子。正是由于這些因素綜合起來,1859年的太陽風暴,才在人類歷史上留下了濃墨重彩的一筆。太陽磁暴開始干擾通信日本衛(wèi)星首個被“擊中”日本航天機構29日聲明,受強烈的太陽磁暴影響,28日晚,日本“兒玉(Kodama)”通訊衛(wèi)星信號中斷。 據(jù)美聯(lián)社報道,在太陽黑子活動減弱后,“兒玉”通訊衛(wèi)星恢復正常運轉。 美歐研究人員28日發(fā)布新聞公告稱,太陽當天發(fā)生了一次強烈的耀斑爆發(fā),預示著新一輪太陽風暴將在今后一兩天內抵達地球,地球上的通信等設施可能會因此受到部分干擾。與這次耀斑爆發(fā)相伴,太陽表面還產(chǎn)生了一股強大的日冕物質噴射,方向幾乎直沖地球。研究人員說,噴射產(chǎn)生的帶電粒子流正以約每小時750萬公里的速度奔地球而來,其與地球磁場作用后可能會形成比較強烈的地磁暴,使地球兩極出現(xiàn)極光,并可能對衛(wèi)星運行和通信等造成干擾。

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