
【教材分析】高考聽力材料的選用非常重視語言真實(shí)性和交際性的原則,語言材料一般來源于實(shí)際生活,對(duì)話的內(nèi)容大都取材于日常生活,即衣、食、住、行、工作、學(xué)習(xí)、天氣、生活環(huán)境等話題,可分為校園、公共場(chǎng)所、家庭等方面,如: shopping, finding the way, doing one’s homework, seeing a doctor, making a phone call, weather report, asking for different kinds of information等。新教材的特點(diǎn)就是利用生活中真實(shí)文本,只是降低難度,讓學(xué)生注重語言的應(yīng)用,將是我們高考把握方向的重要因素?!窘虒W(xué)目標(biāo)與核心素養(yǎng)】學(xué)習(xí)能力目標(biāo):在聽力當(dāng)中,學(xué)生應(yīng)該有效規(guī)劃學(xué)習(xí)方法,選擇恰當(dāng)?shù)牟呗耘c方法。這節(jié)課的訓(xùn)練目標(biāo)是讓學(xué)生有正確的預(yù)測(cè)和抓住問題的關(guān)鍵信息,從而用心去聽來找尋關(guān)鍵信息。根據(jù)生活中實(shí)際情況和高考常見語境,我們不難發(fā)現(xiàn)提前預(yù)測(cè)和抓住題干中的w很重要,即what, where, when, why等等。

II Learn the technical terms-2.1. What can be used as “Subject, Object, Predicative, Direct Object, Indirect Object and objective complement” in a sentence?2. What can be used as “adverbial” in a sentence?3. What can be used as “verb” in a sentence?Answers to questions 1-3:1. Nouns, pronouns and appellations can be used as “Subject, Object, Predicative, Direct Object, Indirect Object and Objective Complement”. Besides, adjectives can be used as “Predicative and Objective Complement” in a sentence.2. Adverbs and prepositional phrases can be used as “Adverbial”.3. Verbs with actual meaning can be used as “Verb” in a sentence. Auxiliary verbs alone cannot be used as “Verb” in a sentence.III Learn to recognize the sentence structures.1. SV structure. For Example:(1) A bird flies.S V(2) A monkey jumps.S V(3) A fish swims.S V√ In SV structures, verbs are “intransitive verbs”.2. SVO structure. For Example:(1) A sheep eats grass.S V O(2) They like bananas.S V O(3) He wants candy.S V O√ In SVO structures, verbs are “transitive verbs”.3. SP structure. For Example:(1) This is great.S P (2) He looks well.S P (3) She became a teacher.S P √ In SP structures, Predicatives are formed by “l(fā)ink verbs” and “adjectives or nouns”.√ link verbs: be, become, grow, look, feel, taste, etc.4. SV IO DO structure. For Example:(1) He asked me a question.S V IO DO(2) Danny wrote me a letter.S V IO DO(3) Billy brought Sam a kite.S V IO DO√ In SV IO DO structures, the verbs are transitive and are followed by two objectives – pronouns or nouns as Indirect Objective, and nouns as Direct Objectives.

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.

常跟雙賓語的動(dòng)詞有:(需借助to的)bring, ask, hand, offer, give, lend, send, show, teach, tell, write, pass, pay, promise, return等;基本句型 五S +V + O + OC(主+謂+賓+賓補(bǔ))特點(diǎn):動(dòng)詞雖然是及物動(dòng)詞,但是只跟一個(gè)賓語還不能表達(dá)完整的意思,必須加上一個(gè)補(bǔ)充成分來補(bǔ)足賓語,才能使意思完整。 判斷原則:能表達(dá)成—賓語 是…/做…注:此結(jié)構(gòu)由“主語+及物的謂語動(dòng)詞+賓語+賓語補(bǔ)足語”構(gòu)成。賓語與賓語補(bǔ)足語之間有邏輯上的主謂關(guān)系或主表關(guān)系,若無賓語補(bǔ)足語,則句意不夠完整??梢杂米鲑e補(bǔ)的有:名詞,形容詞,副詞,介詞短語,動(dòng)詞不定式,分詞等。如:He considers himself an expert on the subject.他認(rèn)為自己是這門學(xué)科的專家。We must keep our classroom clean.我們必須保持教室清潔。I had my bike stolen.我的自行車被偷了。We invited him to come to our school.我們邀請(qǐng)他來我們學(xué)校。I beg you to keep secret what we talked here.我求你對(duì)這里所談的話保密。用it做形式賓語,而將真正的賓語放到賓語補(bǔ)足語的后面,以使句子結(jié)構(gòu)平衡,是英語常用的句型結(jié)構(gòu)方式。即:主語+謂語+it+賓補(bǔ)+真正賓語。如:We think it a good idea to go climb the mountain this Sunday.

教學(xué)目標(biāo)知識(shí)目標(biāo):讓學(xué)生更好理解如何恰當(dāng)?shù)貙懸粋€(gè)人的信息介紹,并能讓學(xué)生熟練地使用一些寫作技能。能力目標(biāo):培養(yǎng)學(xué)生的寫作能力和團(tuán)隊(duì)協(xié)作能力。情感目標(biāo):提升學(xué)生對(duì)寫作的興趣。教學(xué)重難點(diǎn) 教學(xué)重點(diǎn):如何能讓學(xué)生更好地理解個(gè)人信息介紹。教學(xué)難點(diǎn):如何能讓學(xué)生通過適當(dāng)?shù)厥褂靡恍懽骷寄軄韺懸黄^好的個(gè)人信息介紹。教學(xué)準(zhǔn)備 多媒體、黑板、粉筆一、Pre-class1. Greetings2. Leading-inAsk students how to write a profile. What kinds of aspects should be included? The teacher asks students to discuss the topic with each other and put forward to much more ideas about the answer.二、While-class1. The teacher lets students to read the student profiles on Page 8 silently and then asks students to discuss the questions below.1. What is Ann like? How do you know?2. What are Thando’s hobbies?3. Where does Thando come from?4. What is Thando’s dream?5. What does “You will never see me without a book or a pen” mean?

2. Sort out detailed information about Michael Jordan.(1) Understand the transitional sentence.Q: Which part is about Michael Jordan as a master? Which part is about the example he set?(2) Have the Ss Focus on why Michael Jordan is a master and what good examples Michael Jordan set when they’re reading. And think about these questions as below:Q1: How does the author describe his impressive skills?Q2: How do you understand “time seemed to stand still”?Q3: What does “graceful” mean?Q4. Which sentence do you think best describes his mental strength?Q5. Which words is important in the sentence in describing his mental strength? Why?Q6: How do you understand “unique”?Q7: What can we learn from Michael Jordan?Step 5 Discussing and recommendingRecommend their own living legends of sports.Work in groups to choose your own living legend of sports and give the reasons of your choice. Step 6 HomeworkReview the stories of Lang Ping and Michael Jordan, and try to retell them.

①標(biāo)題——標(biāo)題應(yīng)當(dāng)簡(jiǎn)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(jiǎn)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(shí)表現(xiàn)主題,對(duì)導(dǎo)語的內(nèi)容作進(jìn)一步的展開和闡述。④結(jié)束語——通常是對(duì)全文內(nèi)容進(jìn)行概括性的總結(jié)。3. 新聞報(bào)道增分句子(1)陳述事實(shí)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(gè)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(duì)的幫助下,困在洪水中的人們得救了。(2)陳述觀點(diǎn)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(gè)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】本節(jié)課是高中英語第一冊(cè)的最后一個(gè)單元的閱讀和思考部分,文章難度明顯增加,體現(xiàn)在以下幾個(gè)方面:文章題材是說明文,比較難理解;話題生疏,涉及到歷史等知識(shí);生詞量增大,而且在語境中理解詞匯的要求提高。面對(duì)這些,教師的難度和高度也要有所提升,通過探討說明順序,了解背景知識(shí)等幫助他們找到說明文閱讀的方法。【教學(xué)目標(biāo)與核心素養(yǎng)】1. 文化意識(shí)目標(biāo)新課程中指出,文化意識(shí)是對(duì)中外文化的理解和對(duì)優(yōu)秀文化的認(rèn)同。文化意識(shí)的的培養(yǎng)有助于學(xué)生增加國(guó)家認(rèn)同和家國(guó)情懷,成為有文明素養(yǎng)和社會(huì)責(zé)任感的人。我們這個(gè)單元很好體現(xiàn)了這一點(diǎn),通過了解漢字書寫的體系和發(fā)展,學(xué)生可以有一種文化自豪感,同時(shí)也能夠幫助學(xué)生深入挖掘這篇文章,從而想到更多和中國(guó)文化相關(guān)的方面。2. 學(xué)習(xí)能力目標(biāo)

Step 2 New WordsUse ppt to show some words from the passage.Tell the students to remember the meanings.Step3 Skimming and Thinking1. Skim the text and decide which order Han Jing follows to talk about her first day. Time order or place order?Time order2. What is Han Jing worried about before she goes to senior high school?She is worried about whether she will make new friends and if no one talks to her, what she should do.Step 4 Fast Reading1. Match the main ideas with each paragraphParagraph 1:The worries about the new school day Paragraph 2Han Jing’s first maths classParagraph 3Han Jing’s first chemistry classParagraph 4Han Jing’s feelings about her first senior school dayStep 5 Careful Reading1. Fill in the chart with the words and phrases about Han Jing’s day. Answers: Senior high school, a little nervous; Her first maths class, classmates and teachers, friendly and helpful; Chemistry lab; new; great; annoying guy; Confident; a lot to explore2. Read the text again and discuss the questions.1) Why did Han Jing feel anxious before school?Because she was a new senior high student and she was not outgoing. What was more, she was worried about whether she can make friends.2) How was her first maths class?It was difficult but the teacher was kind and friendly. 3) What happened in the chemistry class? What would you do if this happened to you? A guy next to Han Jing tried to talk with her and she couldn’t concentrate on the experiment.

生1:公平性原則——同代人之間要公平,代際之間、人類與其他生物種群之間、不同國(guó)家與地區(qū)之間也要公平。生2:持續(xù)性原則——地球的承載力是有限的,人類的經(jīng)濟(jì)活動(dòng)和社會(huì)發(fā)展必須保持在資源和環(huán)境的承載力之內(nèi)。生3:共同性原則——發(fā)展經(jīng)濟(jì)和保護(hù)環(huán)境是全世界各國(guó)共同的任務(wù),需要各國(guó)的共同參與。同時(shí),地球作為一個(gè)整體,地區(qū)性問題往往會(huì)變?yōu)槿蛐詥栴},所以地區(qū)的決策和行動(dòng),應(yīng)有助于實(shí)現(xiàn)全球整體的協(xié)調(diào)?;顒?dòng)與探究:2·閱讀下面一篇新聞報(bào)道,你認(rèn)為“給蛇讓道”有沒有必要?答:有必要·人類在森林區(qū)內(nèi)修筑公路,已經(jīng)侵占和破壞了蛇的生存環(huán)境,如果再不對(duì)蛇的遷移進(jìn)行保護(hù),蛇數(shù)量的減少以至滅絕將不可避免。這種做法體現(xiàn)了可持續(xù)發(fā)展的公平性原則和共同性原則。3·用可持續(xù)發(fā)展的觀念作為衡量標(biāo)準(zhǔn),對(duì)下列觀點(diǎn)作出評(píng)價(jià)。(1)人類有義務(wù)保護(hù)地球上所有的物種,人類的發(fā)展不應(yīng)該危及其他物種的生存。答:正確。符合可持續(xù)發(fā)展的公平性原則。

思考:洗衣機(jī)脫水時(shí)轉(zhuǎn)速高時(shí)容易甩干衣物,還是轉(zhuǎn)速低時(shí)容易甩干衣物?(2) 制作棉花糖的原理內(nèi)筒與洗衣機(jī)的脫水筒相似,里面加入白砂糖,加熱使糖熔化成糖汁。內(nèi)筒高速旋轉(zhuǎn),黏稠的糖汁就做離心運(yùn)動(dòng),從內(nèi)筒壁的小孔飛散出去,成為絲狀到達(dá)溫度較低的外筒,并迅速冷卻凝固,變得纖細(xì)雪白,像一團(tuán)團(tuán)棉花。5.離心現(xiàn)象的防止在水平公路上行駛的汽車,轉(zhuǎn)彎時(shí)所需的向心力是由車輪與路面的靜摩擦力提供的。如果轉(zhuǎn)彎時(shí)速度過大,所需向心力F大于最大靜摩擦力Fmax,汽車將做離心運(yùn)動(dòng)而造成交通事故。因此,在公路彎道處,車輛行駛不允許超過規(guī)定的速度。當(dāng)高速轉(zhuǎn)動(dòng)的砂輪或者飛輪內(nèi)部分子間相互作用力不足以提供所需向心力時(shí),離心運(yùn)動(dòng)就會(huì)使他們破裂,甚至釀成事故。

請(qǐng)回答:根據(jù)上述材料,概述第二次工業(yè)革命興起的主要原因。〖參考答案〗①政治上,資本主義制度在世界范圍內(nèi)的確立,為第二次工業(yè)革命提供了政權(quán)保障。②市場(chǎng)上,世界市場(chǎng)進(jìn)一步拓展,推動(dòng)生產(chǎn)進(jìn)步發(fā)展。③科技上,19世紀(jì)自然科學(xué)的飛速發(fā)展與重大突破。④勞動(dòng)力上,擁有更多、素質(zhì)更好的自由勞動(dòng)力。⑤經(jīng)濟(jì)上,擁有更加雄厚的資本。探索攻關(guān)二:第二次工業(yè)革命與壟斷組織的出現(xiàn)的關(guān)系材料一第二次工業(yè)革命產(chǎn)生的新興工業(yè)部門,在廠房、設(shè)備、技術(shù)要求和產(chǎn)品結(jié)構(gòu)的復(fù)雜性等方面,都對(duì)生產(chǎn)組織提出了新的要求。這是過去的獨(dú)家企業(yè)無法滿足的,而且一般沒有足夠的資金?!谑?,集中資金的合股公司迅速增加起來,起大型企業(yè)壟斷組織也就應(yīng)運(yùn)而生。

(二)進(jìn)行新課1、動(dòng)能與勢(shì)能的相互轉(zhuǎn)化演示實(shí)驗(yàn)1:如右圖,用細(xì)線、小球、帶有標(biāo)尺的鐵架臺(tái)等做實(shí)驗(yàn)。把一個(gè)小球用細(xì)線懸掛起來,把小球拉到一定高度的A點(diǎn),然后放開,小球在擺動(dòng)過程中,重力勢(shì)能和動(dòng)能相互轉(zhuǎn)化。我們看到,小球可以擺到跟A點(diǎn)等高的C點(diǎn),如圖甲。如果用尺子在某一點(diǎn)擋住細(xì)線,小球雖然不能擺到C點(diǎn),但擺到另一側(cè)時(shí),也能達(dá)到跟A點(diǎn)相同的高度,如圖乙。問題:這個(gè)小實(shí)驗(yàn)中,小球的受力情況如何?各個(gè)力的做功情況如何?這個(gè)小實(shí)驗(yàn)說明了什么?學(xué)生觀察演示實(shí)驗(yàn),思考問題,選出代表發(fā)表見解。小球在擺動(dòng)過程中受重力和繩的拉力作用。拉力和速度方向總垂直,對(duì)小球不做功;只有重力對(duì)小球能做功。實(shí)驗(yàn)證明,小球在擺動(dòng)過程中重力勢(shì)能和動(dòng)能在不斷轉(zhuǎn)化。在擺動(dòng)過程中,小球總能回到原來的高度??梢?,重力勢(shì)能和動(dòng)能的總和保持不變。即機(jī)械能保持不變。

二、課堂教學(xué)(課前由科代表發(fā)回預(yù)習(xí)學(xué)案)1、教師根據(jù)預(yù)習(xí)學(xué)案檢查結(jié)果提出問題(用多媒體展示),引導(dǎo)全班討論(重點(diǎn)討論:①、為什么動(dòng)能的表達(dá)式一定是 mV2 ?你如何得出這個(gè)結(jié)論?②、力在一個(gè)過程中對(duì)物體所做的功,和物體在這個(gè)過程中動(dòng)能的變化量有什么關(guān)系?你如何得出這個(gè)結(jié)論?這個(gè)做功的力和F=ma中的力F有什么關(guān)系)。有困難的小組應(yīng)及時(shí)問老師。老師在這個(gè)過程中巡視指導(dǎo)。2、學(xué)生自主閱讀課文“7 動(dòng)能和動(dòng)能定理”中的“動(dòng)能的表達(dá)式”,然后完成如下練習(xí)(教師在此過程中巡視指導(dǎo)):2.1嘗試推出動(dòng)能的表達(dá)式(鼓勵(lì)會(huì)推導(dǎo)的同學(xué)積極上臺(tái)板演,老師引導(dǎo)討論)。2.2寫出動(dòng)能的小結(jié)(認(rèn)真閱讀教材p66倒數(shù)第二段、第三段,結(jié)合你推導(dǎo)動(dòng)能表達(dá)式的過程,認(rèn)真思考后四人一組討論:①、動(dòng)能是矢量還是標(biāo)量?②、動(dòng)能的單位是什么?③、你認(rèn)為應(yīng)從哪幾方面來理解動(dòng)能?)

【學(xué)習(xí)內(nèi)容分析】在行星運(yùn)動(dòng)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(gè)科學(xué)過程。如果說上一節(jié)內(nèi)容是從運(yùn)動(dòng)學(xué)角度描述行星運(yùn)動(dòng)的話,那么,本節(jié)內(nèi)容是從動(dòng)力學(xué)角度來研究行星運(yùn)動(dòng)的,研究過程是依據(jù)已有規(guī)律進(jìn)行的演繹推理過程。教科書在尊重歷史事實(shí)的前提下,通過一些邏輯思維的鋪墊,讓學(xué)生以自己現(xiàn)有的知識(shí)基礎(chǔ)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(yàn)物理學(xué)研究問題的方法就成為主要的教學(xué)目標(biāo)?!緦W(xué)情分析】在學(xué)太陽對(duì)行星的引力之前,學(xué)生已經(jīng)對(duì)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(yùn)動(dòng)和圓周運(yùn)動(dòng)等運(yùn)動(dòng)規(guī)律,能熟練運(yùn)用牛頓運(yùn)動(dòng)定律解決動(dòng)力學(xué)問題。已經(jīng)完全具備深入探究和學(xué)習(xí)萬有引力定律的起點(diǎn)能力。所以在推導(dǎo)太陽與行星運(yùn)動(dòng)規(guī)律時(shí),教師可以要求學(xué)生自主地運(yùn)用原有的知識(shí)進(jìn)行推導(dǎo),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(diǎn)問題上做適當(dāng)?shù)狞c(diǎn)撥。

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(jìn)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(fèi)的增長(zhǎng).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(gè)方面:其一是廣泛開源,其二是認(rèn)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(shí),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(qiáng)核能、太陽能,風(fēng)能、沼氣,海洋能,地?zé)崮芤约捌渌鞣N新能源的研究和利用,從而不斷擴(kuò)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(guó)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(jì)劃地控制人口增長(zhǎng)的同時(shí),重點(diǎn)要發(fā)揮先進(jìn)科學(xué)技術(shù)的優(yōu)勢(shì),提高各國(guó)的能源利用效率.

1、教師先演示投影:把小鋼珠放在黑墨水瓶蓋里轉(zhuǎn)一下(內(nèi)有一點(diǎn)點(diǎn)墨水),再放在半圓形有機(jī)玻璃軌道上運(yùn)動(dòng)并飛出,讓鋼珠在白紙上留下痕跡,同樣在3/5半圓周,4/5半圓周上運(yùn)動(dòng)飛出,讓學(xué)生猜測(cè)飛出方向由什么特點(diǎn)?(有機(jī)玻璃板說明:厚約5毫米,略小于小鋼珠直徑,圓弧半徑15厘米,MN邊稍長(zhǎng)些,以便過MN做直線,根據(jù)半徑大小確定圓心O位置。)學(xué)生猜想:切線方向師:已知圓弧半徑為15厘米。如何驗(yàn)證?請(qǐng)用幾何方法作圖驗(yàn)證。生:標(biāo)出飛出點(diǎn)和圓心,做圓心和飛出點(diǎn)的連線,用量角尺量出該連線和飛出軌跡直線的夾角,是否90度。2、再分組實(shí)驗(yàn),提醒同桌配合,小心鋼珠滾跑。實(shí)驗(yàn)完畢,要求作圖驗(yàn)證,并互相討論交流。3、交流和結(jié)論:師:要引導(dǎo)學(xué)生得出正確的科學(xué)結(jié)論:“圓周運(yùn)動(dòng)的物體的速度方向?yàn)樵擖c(diǎn)的切線方向”,而不能直接得出“曲線運(yùn)動(dòng)的的物體速度方向?yàn)樵擖c(diǎn)的切線方向”。

動(dòng)畫展示三個(gè)宇宙速度(四) 讓學(xué)生具有振興中華的使命感與責(zé)任感本節(jié)課的最后,播放了一段美國(guó)登月的視頻,讓學(xué)生發(fā)現(xiàn)一些奇妙的物理現(xiàn)象,引導(dǎo)學(xué)生發(fā)現(xiàn)月球的背景是什么顏色,宇航員行走的模樣等等,預(yù)計(jì)不久的將來,哪個(gè)國(guó)家也將登上月球,同學(xué)們高呼“中國(guó)”,那么我們現(xiàn)在能做些什么呢,讓同學(xué)感想到:我們是祖國(guó)的未來的希望,現(xiàn)在需要努力學(xué)習(xí)科學(xué)文化知識(shí),將來為祖國(guó)的航天事業(yè)做貢獻(xiàn)。要培養(yǎng)學(xué)生堅(jiān)韌不撥、勇于探索、協(xié)力合作的科學(xué)精神以及嚴(yán)謹(jǐn)求實(shí)、謙虛謹(jǐn)慎、勇于質(zhì)疑科學(xué)態(tài)度;也要培養(yǎng)學(xué)習(xí)者熱愛科學(xué)、熱愛祖國(guó)的情感;努力學(xué)習(xí)、振興中華的責(zé)任感。這些策略在本案例中得到了體現(xiàn)。(五)練習(xí)反饋,拓展延伸:[例題1]“2003年10月15日9時(shí),我國(guó)神舟五號(hào)宇宙飛船在酒泉衛(wèi)星發(fā)射中心成功發(fā)射,把我國(guó)第一位航天員楊利偉送入太空。飛船繞地球飛行14圈后,于10月16日6時(shí)23分安全降落在內(nèi)蒙古主著陸場(chǎng)?!?/p>

《勻速圓周運(yùn)動(dòng)》為高中物理必修2第五章第4節(jié).它是學(xué)生在充分掌握了曲線運(yùn)動(dòng)的規(guī)律和曲線運(yùn)動(dòng)問題的處理方法后,接觸到的又一個(gè)美麗的曲線運(yùn)動(dòng),本節(jié)內(nèi)容作為該章節(jié)的重要部分,主要要向?qū)W生介紹描述圓周運(yùn)動(dòng)的幾個(gè)基本概念,為后繼的學(xué)習(xí)打下一個(gè)良好的基礎(chǔ)。人教版教材有一個(gè)的特點(diǎn)就是以實(shí)驗(yàn)事實(shí)為基礎(chǔ),讓學(xué)生得出感性認(rèn)識(shí),再通過理論分析總結(jié)出規(guī)律,從而形成理性認(rèn)識(shí)。教科書在列舉了生活中了一些圓周運(yùn)動(dòng)情景后,通過觀察自行車大齒輪、小齒輪、后輪的關(guān)聯(lián)轉(zhuǎn)動(dòng),提出了描述圓周運(yùn)動(dòng)的物體運(yùn)動(dòng)快慢的問題。二、教學(xué)目標(biāo)1.知識(shí)與技能①知道什么是圓周運(yùn)動(dòng)、什么是勻速圓周運(yùn)動(dòng)。理解線速度的概念;理解角速度和周期的概念,會(huì)用它們的公式進(jìn)行計(jì)算。②理解線速度、角速度、周期之間的關(guān)系:v=rω=2πr/T。③理解勻速圓周運(yùn)動(dòng)是變速運(yùn)動(dòng)。④能夠用勻速圓周運(yùn)動(dòng)的有關(guān)公式分析和解決具體情景中的問題。

(四)概括古代中國(guó)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(guó)農(nóng)業(yè)經(jīng)濟(jì)的特點(diǎn),然后展示。1、歷史地位:中國(guó)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(shí)拓展:當(dāng)今中國(guó)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(guó)社會(huì)走向和諧健康發(fā)展的重要課題,回顧中國(guó)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(shì)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。
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