本節(jié)通過學(xué)習(xí)用二分法求方程近似解的的方法,使學(xué)生體會函數(shù)與方程之間的關(guān)系,通過一些函數(shù)模型的實例,讓學(xué)生感受建立函數(shù)模型的過程和方法,體會函數(shù)在數(shù)學(xué)和其他學(xué)科中的廣泛應(yīng)用,進一步認識到函數(shù)是描述客觀世界變化規(guī)律的基本數(shù)學(xué)模型,能初步運用函數(shù)思想解決一些生活中的簡單問題。課程目標1.了解二分法的原理及其適用條件.2.掌握二分法的實施步驟.3.通過用二分法求方程的近似解,使學(xué)生體會函數(shù)零點與方程根之間的聯(lián)系,初步形成用函數(shù)觀點處理問題的意識.數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象:二分法的概念;2.邏輯推理:用二分法求函數(shù)零點近似值的步驟;3.數(shù)學(xué)運算:求函數(shù)零點近似值;4.數(shù)學(xué)建模:通過一些函數(shù)模型的實例,讓學(xué)生感受建立函數(shù)模型的過程和方法,體會函數(shù)在數(shù)學(xué)和其他學(xué)科中的廣泛應(yīng)用.
《數(shù)學(xué)1必修本(A版)》的第五章4.5.2用二分法求方程的近似解.本節(jié)課要求學(xué)生根據(jù)具體的函數(shù)圖象能夠借助計算機或信息技術(shù)工具計算器用二分法求相應(yīng)方程的近似解,了解這種方法是求方程近似解的常用方法,從中體會函數(shù)與方程之間的聯(lián)系;它既是本冊書中的重點內(nèi)容,又是對函數(shù)知識的拓展,既體現(xiàn)了函數(shù)在解方程中的重要應(yīng)用,同時又為高中數(shù)學(xué)中函數(shù)與方程思想、數(shù)形結(jié)合思想、二分法的算法思想打下了基礎(chǔ),因此決定了它的重要地位.發(fā)展學(xué)生數(shù)學(xué)直觀、數(shù)學(xué)抽象、邏輯推理和數(shù)學(xué)建模的核心素養(yǎng)。課程目標 學(xué)科素養(yǎng)1.通過具體實例理解二分法的概念及其使用條件.2.了解二分法是求方程近似解的常用方法,能借助計算器用二分法求方程的近似解.3.會用二分法求一個函數(shù)在給定區(qū)間內(nèi)的零點,從而求得方程的近似解. a.數(shù)學(xué)抽象:二分法的概念;b.邏輯推理:運用二分法求近似解的原理;
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(nèi)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(cè)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(jié)。對于宣傳類的海報, 要寫明具體內(nèi)容, 如: 活動內(nèi)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(guān), 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(yīng)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。
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.
(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(yīng)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!
The activity topic of this section is "report an ongoing event", and the structure is the passive voice of present continuous tense. Rare wild animals are suffering from large-scale poaching, and species are on the brink of danger. Rescue operations are underway. "Being" and "suffering" are the meanings of the present progressive passive voice.The usage of present progressive passive voice is of great importance in writing a good discourse and appreciating some difficult language items, so it is vital to master it and use it flexibly in a context.1. Motivate Ss to deepen the understanding of the usage of present progressive passive voice in a fixed context.2. Enable Ss to master the usage of present progressive passive voice and use it flexibly in a context.3. Lead Ss to construct sentences or appreciate sentences used master it and use it flexibly in a context.1. Help students to appreciate the function of the usage of present progressive passive voice in a sentence2. Instruct students to write essays using the proper usage of present progressive passive voice.Look at the picture and tell me what are workers doing? What is the house being done?
The listening and speaking part aims at how to protect and help endangered animals by listening, speaking and talking about the facts and reasons. This lesson analyzes the decreasing clause of Tibetan antelope population and the measures of protecting Tibetan antelopes. So students can be guided to learn to analyse the title and use different reading skills or strategies, like scanning, skimming and careful reading.1. Read quickly to get the main ideas and the purpose of going to Tibetan; read carefully to understand what the author see and think.2. Understand the sentences of the present continuous passive voice such as “Much is being done to protect wildlife.” and the inverted sentence “Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.”3. Enhance the awareness of protecting wildlife.4. Cultivate the reading methods according to different materials.1. Read quickly to get the main ideas and the purpose of going to Tibetan; read carefully to understand what the author see and think.2. Understand the sentences of the present continuous passive voice such as “Much is being done to protect wildlife.” and the inverted sentence “Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.”3. Cultivate the reading methods according to different materials.Step 1 Leading-inWatch a video about elephants and whales and then ask:Why are they endangered ? They are killed/hunted
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(diào)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(diào)動作。The library is now closed.(狀態(tài))圖書館現(xiàn)在關(guān)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”。
This teaching period mainly deals with grammar “restrictive relative clauses.” To begin with, teachers should lead students to revise what they have learned about the relative pronouns and relative adverbs. And then, teachers move on to stress more special cases concerning this grammar, such as the “preposition+ relative pronouns which and whom” and cases where we can omit the relative pronouns. 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 relative pronouns and adverbs of attributive clauses.2. Lead students to learn to use some special cases concerning restrictive relative clauses 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 relative pronouns and adverbs of attributive clauses in a sentence2. Instruct students to write essays using the proper relative pronouns and adverbs of attributive clauses.本節(jié)語法思考:定語從句在復(fù)合句中的作用是什么? 關(guān)系詞有哪些?定語從句在復(fù)合句中的作用相當于形容詞,它在句中作定語修飾名詞或代詞。他們在先行詞和定語從句之間起到聯(lián)系作用,同時在意義上代表先行詞并在定語從句中擔任一個成分。被定語從句所修飾的詞稱先行詞,定語從句一般放在先行詞的后面。
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.
三、主要工作: 本學(xué)期教務(wù)處繼續(xù)抓好教學(xué)管理,規(guī)范教學(xué)過程,加強教學(xué)指導(dǎo),加大考核力度。群策群力、千方百計提高教學(xué)質(zhì)量?! ?、抓好常規(guī)教學(xué)的管理 ?、?、切實把好教學(xué)流程,規(guī)范教學(xué)秩序。上課期間(包括上晚輔導(dǎo)期間)禁止使用多媒體播放與教學(xué)無關(guān)的視頻影像。 ?、?、規(guī)范教學(xué)過程,對備課、上課、作業(yè)批改、課后輔導(dǎo)、單元驗收、學(xué)科競賽等明確要求,認真檢查、指導(dǎo)。檢查作業(yè)批改兩次,教務(wù)處設(shè)專人檢查,記錄。
一、教材分析人教版高中思想政治必修4生活與哲學(xué)第一單元第三課第二框題《哲學(xué)史上的偉大變革》。本框主要內(nèi)容有馬克思主義哲學(xué)的產(chǎn)生和它的基本特征、馬克思主義的中國化的三大理論成果。學(xué)習(xí)本框內(nèi)容對學(xué)生來講,將有助于他們正確認識馬克思主義,運用馬克思主義中國化的理論成果,分析解決遇到的社會問題。具有很強的現(xiàn)實指導(dǎo)意義。二、學(xué)情分析高二學(xué)生已經(jīng)具備了一定的歷史知識,思維能力有一定提高,思想活躍,處于世界觀、人生觀形成時期,對一些社會現(xiàn)象能主動思考,但尚需正確加以引導(dǎo),激發(fā)學(xué)生學(xué)習(xí)馬克思主義哲學(xué)的興趣。三、教學(xué)目標1.馬克思主義哲學(xué)產(chǎn)生的階級基礎(chǔ)、自然科學(xué)基礎(chǔ)和理論來源,馬克思主義哲學(xué)的基本特征。2.通過對馬克思主義哲學(xué)的產(chǎn)生和基本特征的學(xué)習(xí),培養(yǎng)學(xué)生鑒別理論是非的能力,進而運用馬克思主義哲學(xué)的基本觀點分析和解決生活實踐中的問題。3.實踐的觀點是馬克思主義哲學(xué)的首要和基本的觀點,培養(yǎng)學(xué)生在實踐中分析問題和解決問題的能力,進而培養(yǎng)學(xué)生在實踐活動中的科學(xué)探索精神和革命批判精神。
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
①標題——標題應(yīng)當簡潔明了。②導(dǎo)語——導(dǎo)語是消息開頭的第一段或第一句話,簡明扼要地揭示出消息的核心內(nèi)容。③主體——主體是消息的主要部分,要用充足的事實表現(xiàn)主題,對導(dǎo)語的內(nèi)容作進一步的展開和闡述。④結(jié)束語——通常是對全文內(nèi)容進行概括性的總結(jié)。3. 新聞報道增分句子(1)陳述事實常用的句型:①A terrible storm hit/struck ... , killing ..②It was a cool autumn night when the earthquake happened. A large number of buildings fell down and roads were destroyed, leaving a great many people homeless.地震發(fā)生在一個涼爽的秋夜。大量的建筑物倒塌,道路被毀,許多人無家可歸。③With the help of the rescue team, people who were the trapped in the flood were saved.在救援隊的幫助下,困在洪水中的人們得救了。(2)陳述觀點常用的句型:①Clearly/Obviously/In my opinion/It seemed that people were shocked.顯然/在我看來/似乎人們震驚了。②The whole city was in ruins after the earthquake.地震后整個城市成了一片廢墟。(3)揭示原因常用的句型:Because of/As a result of/Thanks to the help of the army, people who got injured were sent to the hospital immediately.
【教材分析】This teaching period mainly deals with the grammar: the restrictive relative clauses.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 exercise of good quality.【教學(xué)目標與核心素養(yǎng)】1. Get students to have a good understanding of the basic usages of the restrictive relative clauses.2. Enable students to use the restrictive relative clauses flexibly.3. Develop students’ speaking and cooperating abilities.4. Strengthen students’ great interest in grammar learning.【教學(xué)重難點】How to enable students to have a good understanding of the restrictive relative clauses, especially the uses of the relative words such as which, that, who, whom.【教學(xué)過程】Step1: 語法知識呈現(xiàn)定語從句(一)—關(guān)系代詞的用法在復(fù)合句中, 修飾名詞或代詞的從句叫定語從句。定語從句通常由關(guān)系代詞或關(guān)系副詞引導(dǎo),說明事物的具體信息,從句位于被修飾詞之后。被定語從句修飾的詞叫先行詞,引導(dǎo)定語從句的詞叫關(guān)系詞,關(guān)系詞指代先行詞,并在定語從句中充當成分。關(guān)系詞有兩種:關(guān)系代詞who, whom ,whose, that, which, as和關(guān)系副詞when, where, why。
5. Read to get detailed information about Paragraph 5.Q1. What shows the revival of Tangshan?Q2. How can Tangshan revive itself and get up on its feet again?Q3. In times of disasters, how can we go through it?T: In times of disasters, we should unify, show the wisdom and stay positive.Step 4 Activity 4 Highlighting the theme and reflecting1. Make a summary of the text.2. Further understand the titleQ: After our learning, why do you think the earth didn’t sleep on that night?T: An earthquake happened. The people in the earthquake suffered a lot, and the people outside Tangshan were concerned about the people there a lot.3. Reflect through discussion on what can be learnt after reading.T: Disasters are powerful. Unpreparedness can be deadly. Life is weak, but if people work together to help each other, disasters can be defeated.There is no love from disaster, but we have love in the human heart.Step 5 Assignment How does the writer convey that the earthquake was deadly, and that people were helpless during the earthquake? Try to find some attractive and impressive expressions and note them down.
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.
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.
這個地區(qū)有著深厚的傳統(tǒng)。既學(xué)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.
二、學(xué)情分析 在校領(lǐng)導(dǎo)的正確領(lǐng)導(dǎo)下,本學(xué)期我校生源比去年有了重大的變化.高一年級招收了400多名新生,學(xué)校帶來了新的希望.然而,我清醒地認識到任重而道遠的現(xiàn)實是,我校實驗班分數(shù)線僅為140分,普通班入學(xué)成績?nèi)跃痈浇髦袑W(xué)之末.要實現(xiàn)我校教學(xué)質(zhì)量的根本性進步,非一朝一夕之功.實驗班的教學(xué)當然是重中之重,而普通班又絕不能一棄了之.現(xiàn)在的學(xué)情與現(xiàn)實決定了并不是付出十分努力就一定有十分收獲.但教師的責任與職業(yè)道德時刻提醒我,沒有付出一定是沒有收獲的.作為新時代的教師,只有付出百倍的努力,苦干加巧干,才能對得起良心,對得起人民群眾的期望.