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新人教版高中英語必修2Unit 1 Cultural Heritage-Reading and Thinking教案一
The theme of the reading and thinking is about “Understanding how a problem was solved”.The Listening & Speaking & Talking is about international co-work to protect the Mount Tai, in which the students from seven countries came up with many solutions even create the Mount Tai App. This section aims at showing how to solve a difficult and even tough problem about protecting the cultural heritage by the international co-work. So in this section, cultivating students’ international awareness is very clear and important. Concretely, with the economic development, how to balance the protection of cultural relics and social development is a big challenge for human. In the 1950s, the Egyptian government wanted to build the Aswan Dam across the Nile to control floods, produce electricity and water farms. But the proposal led to protests because it would destroy a lot of cultural relics. The Egyptian had no choice but ask the UN for help. Therefore, a international cooperation about how to protect the cultural relics began, which involved the time length about 20 years and a large amount of fund. Then, the problems was solved. 1. Read quickly to get the main idea and the structure of the article; read careful to get detailed information.2. Learn to use the reading strategy---making a timeline3. Learn how to solve a tough problem by asking for help and cooperation4. Have the international awareness and understand the great strength of international cooperation.1. Read quickly to get the main idea and the structure of the article; read careful to get detailed information.2. Learn to use the reading strategy---making a timeline.3. Learn how to solve a tough problem by asking for help and cooperation.
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(diǎn)，總結(jié)共同點(diǎn)。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 4 History and Traditions-Discovering Useful Structure教案一
Step 5 Practice一、完成下列句子。1. Judy and I _______________（把車停下來(park)）in an underground car Park near Trafalgar Square, where we could ______________________(讓我們的車充電（charge)).2. When we finally reached the service desk to ask for audio guides, we heard it ___________ that there were no audio guides____________(留下，剩下）.3. We__________________________（發(fā)現(xiàn)自己對...很驚訝）the large number of visitors and the amount of noise at the entrance of the National Gallery.4. Judy ____________________(眼神專注于） Van Gogh’s Sunflowers. It was hard to approach the painting as there were so many people around.5. She ____________________(把這幅畫的復(fù)制品裝箱（box)） to ensure that it was delivered safely.答案：1.had our car parked get our car battery charged 2. announced left 3. found ourselves very surprised 4. had her eyes fixed on 5. had a copy of the painting boxed二、用過去分詞對下列句子進(jìn)行改寫。1. Loch Ness was surrounded by beautiful natural landscape, which made it look amazing.2. Carl and his friend stayed with a generous family who offered them bread with butter and honey that was homemade.3. The family’s ancestors once attended to soldiers who were wounded in the First World War.4. The young people were attracted by the legend of Loch Ness. They watched over the lake with their cameras and binoculars, which were positioned on the hill.答案：1. Loch Ness surrounded by beautiful natural landscape looks amazing.2. Carl and his friends stayed with a generous family who offered them homemade bread with butter and honey.3. The family’s ancestors once attended to wounded soldiers in the First World War.4. The young people attracted by the legend of Loch Ness watched over the lake with their cameras and binoculars positioned on the hill.
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 3 The Internet-Reading for Writing教案二
8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有禮貌, 你被攻擊的可能性就越小。 Step 8 Writing---the articleHow to stay safe in the online chat roomToday I thought I’d blog about a question that has been asked many times--- how do you stay safe online and avoid bad experiences in the online chat room ? I’m not an expert, but many years as a blogger have taught me a thing or two.First of all, there’s the golden rule of the Internet: keep out of what makes you uneasy. Don’t post comments or click on anything. Second, protect your privacy. Don’t give out too much private information like your address, phone numbers, the ID numbers, etc. Third, be polite. If you are polite to others on the Internet, you won’t be attacked in normal situation. Finally, don’t believe in others easily and never meet someone you met online alone. It is very dangerous.Have you had any bad experiences online, or do you have some good advice for staying safe? Post your comments below!Step 9 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1. Does the writer tell the reader what he/she know about the topic ?2. Are the tips and suggestions well organised ?3. Has the writer defined the new words ?4. Does the author include examples, comparison, or explanations ?5. Does the writer end by asking readers to leave comments and/or suggestions ?6. Can you find any grammar or spelling mistakes.Step 6 HomeworkPut up your revised draft in the classroom or read it to your class.
新人教版高中英語必修2Unit 3 The Internet-Reading For Writing教案一
⑦identity theft 身份盜竊⑧chat room 聊天室⑨draft your blog post 起草博客帖子⑩post embarrassing photos 張貼尷尬照片 【話題句式】 1. How do you stay safe online and avoid bad experiences on the Internet? 你如何在網(wǎng)上保持安全, 避免在網(wǎng)上的不良經(jīng)歷? 2. I’m not an expert, but many years as a blogger have taught me a thing or two. 我不是專家, 但作為一個(gè)博主, 我已經(jīng)學(xué)了好幾年了。 3. If you see or read something that makes you feel uncomfortable, leave the site immediately. 如果你看到或讀到一些讓你覺得不舒服的東西, 立即離開這個(gè)網(wǎng)站。4. Don’t give out your address or phone number. 別告訴別人你的地址或電話號碼。 5. Identity theft is a common and serious problem. 身份盜竊是一個(gè)常見而嚴(yán)重的問題。6. Being online is no excuse for being rude, and you don’t want to become a target for a troll or cyberbully. 上網(wǎng)并不是無禮的借口, 你也不想成為發(fā)挑釁帖子的人或網(wǎng)絡(luò)惡霸的目標(biāo)。 7. Trolls often use several false names so that they can stay on a site. 發(fā)挑釁帖子的人經(jīng)常使用幾個(gè)假名, 這樣他們就可以留在一個(gè)網(wǎng)站上。8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有禮貌, 你被攻擊的可能性就越小。
新人教版高中英語必修2Unit 4 History and Traditions-Reading for Writing教案
Step 1 Lead inThere are many interest of places in the UK. What do you know ?The Big Ben the London Tower the Thames RiverStep 2 Before reading---analyze the titleBeautiful Ireland and its traditionWe know that the article mainly tells about the beauty and traditions of Ireland. Step 3 While reading---Task 1Read the text and answer the following questions.Q1: What makes the Irish countryside exciting and inspiring?Its beauty and how it offers something for all the scenes.Q2: What are the best ways to experience some Irish traditions and cultures?By stopping by a village pub and relaxing with a drink and traditional meal while listening to music and watching dancingQ3: What is the meaning of “breathe in the sweet scent of fresh flowers while birds greet the new day with their morning song ?”It means to not just smell but also breathe in the smell of fresh flowers early in the morning as the birds sing their first song of the new day.Q4: What are the best ways to experience Chinese traditions and customs ?By travelling to different places and using all your senses to experience everything and by interacting with local people.Step 4 While reading---Task 2Analyze the descriptive paragraph1. Identify and underline the paragraph’s introductory sentence and the ending sentence.Introductory sentence: Ireland’s beautiful countryside has always had a great influence on its people and traditions.Ending sentence: And if you introduce yourself to a friendly face, you are more than likely to experience local culture and customs first-hand.2. The paragraph talks about different senses in different places. Write the senses and places in the order that they appear.
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
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?yàn)槲覀兿Ｍ澜绺鲊鴪F(tuán)結(jié)起來去應(yīng)對……(6)And if we do not act ... 如果我們不采取行動(dòng)……(7)Now, I share the concerns that have been expressed ... 我也同意對于……表達(dá)的擔(dān)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(shí)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(shí)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!
人教版新課標(biāo)高中物理必修1彈力教案2篇
一般情況下，凡是支持物對物體的支持力，都是支持物因發(fā)生形變而對物體產(chǎn)生彈力。所以支持力的方向總是垂直于支持面而指向被支持的物體。例1：放在水平桌面上的書書由于重力的作用而壓迫桌面，使書和桌面同時(shí)發(fā)生微小形變，要恢復(fù)原狀，對桌面產(chǎn)生垂直于桌面向下的彈力f1，這就是書對桌面的壓力；桌面由于發(fā)生微小的形變，對書產(chǎn)生垂直于書面向上的彈力f2，這就是桌面對書的支持力。學(xué)生分析：靜止地放在傾斜木板上的書，書對木板的壓力和木板對書的支持力。并畫出力的示意圖。結(jié)論：壓力、支持力都是彈力。壓力的方向總是垂直于支持面而指向被壓的物體，支持力的方向總是垂直于支持面而指向被支持的物體。引導(dǎo)學(xué)生分析靜止時(shí)，懸繩對重物的拉力及方向。引導(dǎo)得出：懸掛物由于重力的作用而拉緊懸繩，使重物、懸繩同時(shí)發(fā)生微小的形變。重物由于發(fā)生微小的形變，對懸繩產(chǎn)生豎直向下的彈力f1，這是物對繩的拉力；懸繩由于發(fā)生微小形變，對物產(chǎn)生豎直向上的彈力f2，這就是繩對物體的拉力。
人教版新課標(biāo)高中物理必修1摩擦力教案2篇
l．知識與技能：（1）知道摩擦力產(chǎn)生的條件。（2）能在簡單問題中，根據(jù)物體的運(yùn)動(dòng)狀態(tài)，判斷靜摩擦力的有無、大小和方向；知道存在著最大靜摩擦力。（3）掌握動(dòng)磨擦因數(shù)，會(huì)在具體問題中計(jì)算滑動(dòng)磨擦力，掌握判定摩擦力方向的方法。（4）知道影響到摩擦因數(shù)的因素。2．過程與方法：通過觀察演示實(shí)驗(yàn)，概括出摩擦力產(chǎn)生的條件及摩擦力的特點(diǎn)，培養(yǎng)學(xué)生的觀察、概括能力。通過靜摩擦力與滑動(dòng)摩擦力的區(qū)別對比，培養(yǎng)學(xué)生分析綜合能力。3．情感態(tài)度價(jià)值觀：在分析物體所受摩擦力時(shí)，突出主要矛盾，忽略次要因素及無關(guān)因素，總結(jié)出摩擦力產(chǎn)生的條件和規(guī)律。二、重點(diǎn)、難點(diǎn)分析1．本節(jié)課的內(nèi)容分滑動(dòng)摩擦力和靜摩擦力兩部分。重點(diǎn)是摩擦力產(chǎn)生的條件、特性和規(guī)律，通過演示實(shí)驗(yàn)得出關(guān)系f=μN(yùn)。2．難點(diǎn)是學(xué)生有初中的知識，往往誤認(rèn)為壓力N的大小總是跟滑動(dòng)物體所受的重力相等，因此必須指出只有當(dāng)兩物體的接觸面垂直，物體在水平拉力作用下，沿水平面滑動(dòng)時(shí)，壓力N的大小才跟物體所受的重力相等。
人教版高中歷史必修3宋明理學(xué)教案2篇
二、程朱理學(xué)：1、宋代“理學(xué)”的產(chǎn)生：（1）含義：所謂“理學(xué)”，就是用“理學(xué)”一詞來指明當(dāng)時(shí)兩宋時(shí)期所呈現(xiàn)出來的儒學(xué)。廣義的理學(xué)，泛指以討論天道問題為中心的整個(gè)哲學(xué)思潮，包括各種不同的學(xué)派；狹義的理學(xué)，專指程顥、程頤、朱熹為代表的，以“理”為最高范疇的學(xué)說，稱為“程朱理學(xué)”。理學(xué)是北宋政治、社會(huì)、經(jīng)濟(jì)發(fā)展的理論表現(xiàn)，是中國古代哲學(xué)長期發(fā)展的結(jié)果，是批判佛、道學(xué)說的產(chǎn)物。他們把“理”或“天理”視作哲學(xué)的最高范疇，認(rèn)為理無所不在，不生不滅，不僅是世界的本原，也是社會(huì)生活的最高準(zhǔn)則。在窮理方法上，程顥“主靜”，強(qiáng)調(diào)“正心誠意”；程頤“主敬”，強(qiáng)調(diào)“格物致知”。在人性論上，二程主張“去人欲，存天理”，并深入闡釋這一觀點(diǎn)使之更加系統(tǒng)化。二程學(xué)說的出現(xiàn)，標(biāo)志著宋代“理學(xué)”思想體系的正式形成?！竞献魈骄俊克未袄韺W(xué)”興起的社會(huì)條件：
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 4 History and Traditions-Listening＆Speaking＆Talking教案一
This unit is about history and traditions. From the opening page, we can know that this unit will introduce the history and traditions around the world. As Marcus Garvey says “A people without the knowledge of their past history, origin and culture is like a tree without roots”, it is important for students to realize the importance and value of knowing the history and traditions and their further meanings. And this part ( listening and speaking ) is divided into two parts: Part A---share views on historic sites, Part B ---talk about a visit to a historic tourist destination. By talking with a foreigner, the speakers introduce the historic attractions and their cultures. Part A is that William, a British student, who was going to visit the Confucius Temple and a Chinese student, Xiao Kong, who was going to the Confucius Temple to meet with the members of the research group, went together and exchanged their views on the Confucius Temple, Confucius, Confucius' descendants and Confucius' educational thoughts. Part B is a conversation between Xiao Yan, a youth hostel receptionist and Paul, a backpacker about the feelings and experience after visiting the Chinese famous tourist attraction Pingyao.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to talk about historic spots and great person.3. Instruct students to use functional sentences of showing one’s excitement, surprise and disappointment.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to discuss with their peers the related topics.3. Enable students to use the functional items of showing one’s excitement, surprise and disappointment.
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.
人教版高中語文必修5《談中國詩》教案
教師提示：1.這句話的本體不是一般意義上的“中國詩”，即不是指中國詩歌中的某一類作品或某位詩人的作品，而是指中國詩的發(fā)展特點(diǎn)。早熟，是指“純粹的抒情詩的精髓和峰極，在中國詩里出現(xiàn)得異常之早”；早衰，是指“中國詩一蹴而至崇高的境界，以后就缺乏變化，而且逐漸腐化”(腐化，是對詩的思想內(nèi)容和藝術(shù)價(jià)值而言的)。這句話，借助比喻和比喻中的對比(“早熟”與“早衰”)，從詩歌發(fā)展的角度，簡要地說明了中國詩的藝術(shù)特征和由此產(chǎn)生的負(fù)面影響。2.這句話有兩層意思：一是借梵文的《百喻經(jīng)》闡釋中國的藝術(shù)和思想體構(gòu)上的缺欠，旨在批評；二是點(diǎn)明造成這種缺欠的根本原因?！耙粋€(gè)印度愚人要住三層樓而不許匠人造底下兩層”這樣的建筑物就是“飄飄凌云的空中樓閣”，作者以此作喻，批評中國的藝術(shù)和思想體構(gòu)缺乏嚴(yán)密的邏輯性，往往脫離客觀實(shí)際，沒有堅(jiān)實(shí)的基礎(chǔ)，其結(jié)果必定影響藝術(shù)的健康、穩(wěn)定地發(fā)展。
人教版新課標(biāo)高中物理必修2探究彈性勢能的表達(dá)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(xué)中的一條主線。對于一種勢能，就一定對應(yīng)于相應(yīng)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(yīng)從彈簧的彈力做功入手。然而彈簧的彈力是一個(gè)變力，如何研究變力做功是本節(jié)的一個(gè)難點(diǎn)，也是重點(diǎn)。首先，要引導(dǎo)學(xué)生通過類比重力做功和重力勢能的關(guān)系得出彈簧的彈力做功和彈簧的彈性勢能的關(guān)系。其次，通過合理的猜想與假設(shè)得出彈簧的彈力做功與哪些物理量有關(guān)。最后，類比勻變速直線運(yùn)動(dòng)求位移的方法，進(jìn)行知識遷移，利用微元法的思想得到彈簧彈力做功的表達(dá)式，逐步把微分和積分的思想滲透到學(xué)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(shí)例來創(chuàng)設(shè)情景，提出問題。給學(xué)生感性認(rèn)識，引起學(xué)生的好奇心；讓學(xué)生對彈簧彈力做功的影響因素進(jìn)行猜想和假設(shè)，提出合理的推測，激發(fā)學(xué)生的探索心理，構(gòu)思實(shí)驗(yàn)，為定性探究打下基礎(chǔ)。然后，引導(dǎo)學(xué)生通過類比重力做功與重力勢能的關(guān)系得出彈簧彈性勢能與彈簧彈力做功的關(guān)系。
人教版高中歷史必修2發(fā)達(dá)的古代農(nóng)業(yè)教案2篇
（四）概括古代中國農(nóng)業(yè)經(jīng)濟(jì)的基本特點(diǎn)從歷史地位、生產(chǎn)結(jié)構(gòu)、基本特征、基本模式等幾方面，小組討論古代中國農(nóng)業(yè)經(jīng)濟(jì)的特點(diǎn)，然后展示。1、歷史地位：中國是獨(dú)立發(fā)展、自成體系的世界農(nóng)業(yè)起源中心之一。2、生產(chǎn)結(jié)構(gòu)：種植業(yè)和家畜飼養(yǎng)業(yè)相結(jié)合，以種植業(yè)為主，家畜飼養(yǎng)業(yè)為輔。3、基本特征：農(nóng)業(yè)生產(chǎn)精耕細(xì)作。 4、基本模式：一家一戶的小農(nóng)經(jīng)濟(jì)。知識拓展：當(dāng)今中國農(nóng)村人口膨脹，農(nóng)民生活條件急需提高，如何處理好“三農(nóng)”問題是中國社會(huì)走向和諧健康發(fā)展的重要課題，回顧中國古代農(nóng)業(yè)的發(fā)展歷程，結(jié)合農(nóng)業(yè)發(fā)展的現(xiàn)狀，談?wù)勀愕目捶ê徒ㄗh。展示：1.因地制宜，發(fā)揮各地特色優(yōu)勢2、精耕細(xì)作和現(xiàn)代科學(xué)相結(jié)合； 3.保護(hù)生態(tài)環(huán)境，堅(jiān)持可持續(xù)發(fā)展；4.完善水利設(shè)施，政府重視。