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人教版新課標(biāo)小學(xué)數(shù)學(xué)四年級(jí)上冊(cè)積的變化規(guī)律說課稿
三、學(xué)情與教材分析《積的變化規(guī)律》是九年義務(wù)教育課程標(biāo)準(zhǔn)實(shí)驗(yàn)教科書小學(xué)數(shù)學(xué)四年級(jí)上冊(cè)第三單元的內(nèi)容。本課例以一組乘法算式為載體，引導(dǎo)學(xué)生探索當(dāng)一個(gè)因數(shù)不變時(shí)，另一個(gè)因數(shù)與積的變化規(guī)律。在學(xué)生已經(jīng)掌握了乘法運(yùn)算的基本技能的基礎(chǔ)上，在乘法運(yùn)算中探索積的變化規(guī)律。通過這個(gè)過程的探索，學(xué)生將會(huì)經(jīng)歷研究問題——?dú)w納發(fā)現(xiàn)規(guī)律——解釋說明規(guī)律——舉例驗(yàn)證規(guī)律四個(gè)層次的學(xué)習(xí)過程。學(xué)生將會(huì)用到觀察、計(jì)算、自主探索、合作交流等學(xué)習(xí)手段，并最終發(fā)現(xiàn)規(guī)律，歸納與驗(yàn)證規(guī)律，從而有效的培養(yǎng)學(xué)生探索與推理的能力，讓學(xué)生體會(huì)事物間是密切相關(guān)的，受到辯證思想的啟蒙教育。例題的設(shè)計(jì)分三個(gè)層次：1、教材設(shè)計(jì)了一組乘法算式，引導(dǎo)學(xué)生在觀察，計(jì)算，對(duì)比的基礎(chǔ)上自主發(fā)現(xiàn)因數(shù)變化引起積的變化規(guī)律。
人教版新課標(biāo)高中物理必修2功率教案2篇
1．用CAI課件模擬汽車的啟動(dòng)過程。師生共同討論：①如果作用在物體上的力為恒力，且物體以勻速運(yùn)動(dòng)，則力對(duì)物體做功的功率保持不變。此情況下，任意一段時(shí)間內(nèi)的平均功率與任一瞬時(shí)的瞬時(shí)功率都是相同的。②很多動(dòng)力機(jī)器通常有一個(gè)額定功率，且通常使其在額定功率狀態(tài)工作（如汽車），根據(jù)P=FV可知：當(dāng)路面阻力較小時(shí)，牽引力也小，速度大，即汽車可以跑得快些；當(dāng)路面阻力較大，或爬坡時(shí)，需要比較大的牽引力，速度必須小。這就是爬坡時(shí)汽車換低速擋的道理。③如果動(dòng)力機(jī)器在實(shí)際功率小于額定功率的條件下工作，例如汽車剛剛起動(dòng)后的一段時(shí)間內(nèi)，速度逐漸增大過程中，牽引力仍可增大，即F和v可以同時(shí)增大，但是這一情況應(yīng)以二者乘積等于額定功率為限度，即當(dāng)實(shí)際功率大于額定功率以后，這種情況不可能實(shí)現(xiàn)。
人教版新課標(biāo)高中物理必修2平拋運(yùn)動(dòng)教案2篇
（五）平拋運(yùn)動(dòng)規(guī)律的應(yīng)用例1：一架老式飛機(jī)在高出海面45m的高處，以80m/s的速度水平飛行，為了使飛機(jī)上投下的炸彈落在停在海面上的敵船，應(yīng)該在與轟炸目標(biāo)的水平距離為多遠(yuǎn)的地方投彈?不計(jì)空氣阻力。分析：對(duì)于這道題我們可以從以下幾個(gè)方面來考慮：(1)從水平飛行的飛機(jī)上投下的炸彈，做什么運(yùn)動(dòng)?為什么?(2)炸彈的這種運(yùn)動(dòng)可分解為哪兩個(gè)什么樣的分運(yùn)動(dòng)?3)要想使炸彈投到指定的目標(biāo)處，你認(rèn)為炸彈落地前在水平方向通過的距離與投彈時(shí)飛機(jī)離目標(biāo)的水平距離之間有什么關(guān)系?拓展：1、式飛機(jī)在高出海面45m的高處，以80m/s的速度水平飛行，尾追一艘以15m/s逃逸的敵船，為了使飛機(jī)上投下的炸彈正好擊中敵船，應(yīng)該在與轟炸目標(biāo)的水平距離為多遠(yuǎn)的地方投彈?不計(jì)空氣阻力。2、在一次摩托車跨越壕溝的表演中，摩托車從壕溝的一側(cè)以速度v＝40m/s沿水平方向向另一側(cè)，壕溝兩側(cè)的高度及寬度如圖所示，摩托車可看做質(zhì)點(diǎn)，不計(jì)空氣阻力。（1）判斷摩托車能否跨越壕溝？請(qǐng)計(jì)算說明（2）若能跨過，求落地速度？
人教版新課標(biāo)高中物理必修2向心力教案2篇
3．進(jìn)一步體會(huì)力是產(chǎn)生加速度的原因，并通過牛頓第二定律來理解勻速圓周運(yùn)動(dòng)、變速圓周運(yùn)動(dòng)及一般曲線運(yùn)動(dòng)的各自特點(diǎn)。（三）、情感、態(tài)度與價(jià)值觀1．在實(shí)驗(yàn)中，培養(yǎng)學(xué)生動(dòng)手、探究的習(xí)慣。2．體會(huì)實(shí)驗(yàn)的意義，感受成功的快樂，激發(fā)學(xué)生探究問題的熱情、樂于學(xué)習(xí)的品質(zhì)。教學(xué)重點(diǎn)1．體會(huì)牛頓第二定律在向心力上的應(yīng)用。2．明確向心力的意義、作用、公式及其變形，并經(jīng)行計(jì)算。教學(xué)難點(diǎn)1．對(duì)向心力的理解及來源的尋找。2．運(yùn)用向心力、向心加速度的知識(shí)解決圓周運(yùn)動(dòng)問題。教學(xué)過程（一）、 引入新課：復(fù)習(xí)提問：勻速圓周運(yùn)動(dòng)的物體的加速度——向心加速度，它的方向和大小有何特點(diǎn)呢？學(xué)生回答后進(jìn)一步引導(dǎo)：那做勻速圓周運(yùn)動(dòng)物體的受力有什么特點(diǎn)呢？是什么力使物體做圓周運(yùn)動(dòng)而不沿直線飛出？請(qǐng)同學(xué)們先閱讀教材
人教版新課標(biāo)高中物理必修1摩擦力教案2篇
l．知識(shí)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(duì)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(shí)，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(duì)物體的支持力，都是支持物因發(fā)生形變而對(duì)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(duì)桌面產(chǎn)生垂直于桌面向下的彈力f1，這就是書對(duì)桌面的壓力；桌面由于發(fā)生微小的形變，對(duì)書產(chǎn)生垂直于書面向上的彈力f2，這就是桌面對(duì)書的支持力。學(xué)生分析：靜止地放在傾斜木板上的書，書對(duì)木板的壓力和木板對(duì)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(duì)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(duì)懸繩產(chǎn)生豎直向下的彈力f1，這是物對(duì)繩的拉力；懸繩由于發(fā)生微小形變，對(duì)物產(chǎn)生豎直向上的彈力f2，這就是繩對(duì)物體的拉力。
人教版高中政治必修3文化創(chuàng)新的途徑教案
這次大賽我們看到了啟發(fā)講授式，合作探究式，情景體驗(yàn)式，信息技術(shù)與學(xué)科教學(xué)整合式等多種教學(xué)方法，各有所長，也都發(fā)揮了各自不同的教學(xué)作用。重慶的李靜老師在講《文化創(chuàng)新的途徑》這課中，從一個(gè)大家都非常關(guān)注的有些爭議的張藝謀導(dǎo)演的雅典奧運(yùn)會(huì)閉幕式上8分鐘的表演的品評(píng)與思辯入手，學(xué)生非常興奮，又到2008年北京奧運(yùn)會(huì)開幕式的點(diǎn)火和文藝演出的創(chuàng)新設(shè)計(jì)，教學(xué)過程中既有學(xué)生的現(xiàn)場(chǎng)調(diào)查，又有充分發(fā)揮學(xué)生想象力的小組合作探究，還有小組間彼此的評(píng)價(jià)。在教學(xué)方式的設(shè)計(jì)上既有體驗(yàn)式，又有合作探究式，還有教師的啟發(fā)講授，多種教學(xué)方式的整合提高了課堂教學(xué)的整體效益。最后還要求學(xué)生把他們的設(shè)計(jì)通過E-mail等方式發(fā)給北京奧運(yùn)會(huì)組委會(huì)，讓學(xué)生非常興奮?！?/p>
人教版高中地理必修2人地關(guān)系思想的演變教案
2.由于附近金礦生產(chǎn)廢棄物尾礦砂的堆積，孫家村的大溝里十幾年來就吃掉了近百畝土地，使人均耕地下降到0.03公頃。村里和礦上共同商量，共同開發(fā)復(fù)墾，由礦上出錢，村里出勞力、機(jī)械，運(yùn)來“客土”覆蓋到尾礦填平的溝壑上，形成耕地。十年來，通過這種方式恢復(fù)耕地15.335公頃，不僅解決了尾礦污染問題，而且村里耕地由25公頃多增加到40公頃。【思考】分析以上兩個(gè)例子，哪一個(gè)體現(xiàn)了可持續(xù)發(fā)展的原則，為什么？【分析】第二個(gè)材料體現(xiàn)了可持續(xù)發(fā)展。因?yàn)椴牧?用農(nóng)田堆放垃圾會(huì)破壞土地肥力，影響農(nóng)業(yè)生產(chǎn)，又污染環(huán)境，危害村民健康。這種行為目光短淺，只顧眼前利益，沒有考慮長遠(yuǎn)發(fā)展。材料2既解決了尾礦污染問題，又增加了耕地面積，耕地是可再生資源，利用得當(dāng)，可為村民提供農(nóng)產(chǎn)品，解決溫飽同時(shí)創(chuàng)造經(jīng)濟(jì)效益，達(dá)到良性循環(huán)。所以說保護(hù)環(huán)境就是挽救人類，我們要將這種意識(shí)轉(zhuǎn)化為自身行為，使人地關(guān)系走向和諧。
人教版高中語文必修2《故都的秋》教案2篇
三、具體研習(xí)1、文章的哪些段落描寫了故都的秋？郁達(dá)夫先生既然這么喜歡故都的秋，那么他選取了哪些畫面來寫故都的秋？（學(xué)生閱讀圈點(diǎn)，教師引導(dǎo)學(xué)生找關(guān)鍵詞、關(guān)鍵句。）明確：從3--11自然段。主要是5幅畫面，第３段庭院靜觀（破屋秋色），第４段槐樹落蕊（街頭落蕊），第５段秋蟬殘鳴，第６—10段閑話秋涼，第11段清秋佳果。2、故都的秋有什么特點(diǎn)？明確：清、靜、悲涼。2、作者在對(duì)這些景具體的描繪中，是如何體現(xiàn)故都秋“清、靜、悲涼”的特點(diǎn)的呢？（下面先請(qǐng)同學(xué)來誦讀課文3——11段落，其他同學(xué)要眼耳手腦并用，一是圈出文中體現(xiàn)秋天色彩的詞語，二是標(biāo)出傳遞聲響的物名。我們將從“秋色”和“秋聲”兩個(gè)角度來品味一下故都的“秋味”。）
人教版高中語文必修1《飛向太空的航程》教案2篇
第7～10段，我們?nèi)〉昧顺醪降某删?。先寫毛澤東主席的號(hào)召，激勵(lì)無數(shù)的航天人去實(shí)現(xiàn)千年夢(mèng)想；接著寫我們的計(jì)劃，上天畢竟是一件天大的事情，不是誰一句話就能吹上去的，需要有周密的計(jì)劃，這計(jì)劃的第一步是研制火箭，成功了，而從毛主席發(fā)出號(hào)召開始到火箭成功發(fā)射才用了1年零9個(gè)月；又用了不到10年的時(shí)間中國的第一顆人造衛(wèi)星又上了天，“宣告中國進(jìn)入了航天時(shí)代”。由號(hào)召，到計(jì)劃，到成功，一步一步寫來，緊張的任務(wù)，緊湊的文章，娓娓道來，條理清晰。第11～13段，人造衛(wèi)星上天了，下一步就是載人飛天，圓千年夢(mèng)想。我們也做了大量的準(zhǔn)備工作，一是航天材料、食品等的準(zhǔn)備，一是航天員的準(zhǔn)備，已經(jīng)挑選了19位優(yōu)秀的飛行員，他們是航天員的預(yù)備軍?？磥韺?shí)現(xiàn)中國人的航天夢(mèng)已為時(shí)不遠(yuǎn)了。可是在科學(xué)上是沒有坦途的，由于多方面的原因，計(jì)劃擱淺了，我們的飛天夢(mèng)想“只能塵封在一張張構(gòu)思草圖中”，這是多么遺憾的事??！
人教版高中語文必修1《優(yōu)美的漢字》教案2篇
書法藝術(shù)的繁榮期，是從東漢開始的東漢時(shí)期出現(xiàn)了專門的書法理論著作，最早的書法理論提出者是東西漢之交的揚(yáng)雄第一部書法理論專著是東漢時(shí)期崔瑗的《草書勢(shì)》漢代書法家可分為兩類：一類是漢隸書家，以蔡邕為代表一類是草書家，以杜度、崔瑗、張芝為代表，張芝被后人稱之為“草圣”最能代表漢代書法特色的，莫過於是碑刻和簡牘上的書法東漢碑刻林立，這一時(shí)期的碑刻，以漢隸刻之，字型方正，法度謹(jǐn)嚴(yán)、波磔分明此時(shí)隸書已登峰造極漢代創(chuàng)興草書，草書的誕生，在書法藝術(shù)的發(fā)展史上有著重大意義它標(biāo)志著書法開始成為一種能夠高度自由的抒發(fā)情感，表現(xiàn)書法家個(gè)性的藝術(shù)草書的最初階段是草隸，到了東漢時(shí)期，草隸進(jìn)一步發(fā)展，形成了章草，后由張芝創(chuàng)立了今草，即草書
人教版高中語文必修1《奇妙的對(duì)聯(lián)》教案2篇
3、介紹對(duì)聯(lián)的歷史引出本課的重點(diǎn)。人類歷史上的第一副對(duì)聯(lián)是“新年納余慶，嘉節(jié)號(hào)長春”。出現(xiàn)在五代十國時(shí)期（公元964年），距離現(xiàn)在已經(jīng)有1044年了。有著一千多年歷史的對(duì)聯(lián)有什么基本的特點(diǎn)呢？這是我們這節(jié)課學(xué)習(xí)的重點(diǎn)。請(qǐng)?jiān)谧母魑划?dāng)回醫(yī)生，給下面這幅對(duì)聯(lián)號(hào)號(hào)脈，看它對(duì)仗是否工整？上聯(lián)：冬去春來千條楊柳迎風(fēng)綠下聯(lián)：冰消雪化梅花萬朵撲鼻有什么問題，怎么改？剛才這幾位同學(xué)指出了這幅對(duì)聯(lián)的兩個(gè)問題，也提出了兩條修改意見。第一是下聯(lián)少了一個(gè)字，最好是添加一個(gè)“香”字；第二是下聯(lián)的“梅花萬朵”與上聯(lián)的“千條楊柳”是數(shù)量詞對(duì)名詞，名詞對(duì)數(shù)量詞，對(duì)仗不工整，要調(diào)整為“萬朵梅花”。這樣，數(shù)量詞“萬朵”對(duì)“千條”，名詞“梅花”對(duì)“楊柳”。大家還有沒有不同的看法。這樣我們就可以得出對(duì)聯(lián)的兩個(gè)特點(diǎn)特點(diǎn)：第一個(gè)特點(diǎn)是上下聯(lián)字?jǐn)?shù)要相等（板書）。就是上聯(lián)有幾個(gè)字，下聯(lián)也要有幾個(gè)字。大家記下來，對(duì)聯(lián)基本要求一，“上下聯(lián)字?jǐn)?shù)相等”。這個(gè)要求是很嚴(yán)格的，一般來說，違反這個(gè)規(guī)則就不成對(duì)聯(lián)了。
新人教版高中英語必修2Unit 2 Wildlife Protection-Reading for Writing教案二
This lesson aims at making a poster about protecting wildlife after reading some posters. During reading students are guided to understand the content and try to summarize the posters with one sentence. Then students are guided to try to make a poster about protecting wildlife.1. Read the two posters and try to understand the summary sentences.2. Look at the two posters and try to understand what emotions they express.3. Try to summarize the features of posters4. Try to make a poster about wildlife.1. Look at the two posters and try to understand what emotions they express.2. Try to summarize the features of posters3. Try to make a poster about wildlife.Step 1 Lead inLook at the the posters on the textbook and ask:Which emotions do the posters communicate ?Step 2 Read the poster and answer the questions.1. What do you think of the animals in the poster on the left ?I think it is frightening and ugly.2. Why do we should protect the ugly animals ?All species--the good, the bad, and the ugly-- should be treated equally.The world needs all kinds--without variety, our planet cannot survive.3. Why are billions of trees being cut down every year ?To make paper for humans.4. What result will be lead to after the trees are cut down ?A lost of animal homes are being destroyed./The habitat of wildlife is being destroyed.Step 3 Find the feature of posters1. What does each poster use to stir up emotions ?On the left, it makes us a little frightened and it looks a little ugly, but it can activate our curiosity--What is it? And What is wrong with it?On the right, it makes us feel a little sad and want to protect them.
新人教版高中英語必修2Unit 2 Wildlife Protection-Reading and Thinking教案一
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
新人教版高中英語必修2Unit 2 Wildlife Protection-Listening &Speaking＆Talking教案
Listening and Speaking introduces the topic of “how to save endangered wildlife and help wildlife in their neighborhood.” Due to the continuous deterioration of the living environment, a large number of wild animals are always facing the threat of endangered or extinction. Listening and speaking period enables students to understand the fact and reason why wild species are disappearing from the earth at an amazing speed, and realize that human beings ought to enhance the awareness of protecting wild species as soon as possible.Listening and Talking introduces the theme of " how to help wildlife in Ss’ neighborhood.". Now there are many volunteers who spontaneously protect wild animals, carry out various activities according to local conditions, and contribute their own strength to local animal protection with practical actions. Middle school students are also enthusiastic participants. They organize activities in their spare time, and take this opportunity to make friends, broaden their horizons, cultivate team spirit and communication skills. This section describes a bird watching activity organized by several middle school students of Bird watching Club. It aims to stimulate students' interest, improve their understanding of bird watching activities, and use the language structure of “being used for; in order to, so as to, to, so that, in order that ” to express the purpose for communication and discussion.1. Guide students to understand the content of listening texts in terms of using visuals to predict content.2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to save endangered wildlife and help wildlife in their neighborhood.3. Instruct students to use functional sentences of the dialogue such as “I am concerned about…” “what do you know about the endangered animals in…" and so on to talk about one of the endangered animals.
新人教版高中英語必修2Unit 2 Wildlife Protection-Reading For Writing教案一
1. 標(biāo)題首先根據(jù)海報(bào)的特點(diǎn)、格式寫明標(biāo)題。海報(bào)中往往把內(nèi)容作為大標(biāo)題。例如: Save the earth, Save the birds。2. 正文部分不同的海報(bào)其正文部分的側(cè)重點(diǎn)不同。對(duì)于介紹性的海報(bào), 首先要引出話題, 其次列出原因, 最后是總結(jié)。對(duì)于宣傳類的海報(bào), 要寫明具體內(nèi)容, 如: 活動(dòng)內(nèi)容, 地點(diǎn)以及參加活動(dòng)的注意事項(xiàng), 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?yàn)槿祟惖幕顒?dòng), 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(dòng)物面臨著滅絕的危險(xiǎn)。 5. The government has taken effective measures to protect them. 政府已采取有效的措施來保護(hù)它們。6. People should raise the awareness of the protection of wild animals. 人們應(yīng)該提高保護(hù)野生動(dòng)物的意識(shí)。 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 2 Wildlife Protection-Discovering Useful Structure教案二
2．表示現(xiàn)階段正在進(jìn)行的被動(dòng)動(dòng)作(該動(dòng)作在說話的瞬間未必正在進(jìn)行)。Many interesting experiments are being carried out these days.(說話時(shí)，并不一定正在進(jìn)行)3．表示一種經(jīng)常性的被動(dòng)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(yáng)或厭惡的感情色彩。He is always being praised by the leader.4．表示按計(jì)劃或安排主語將要承受謂語動(dòng)詞所表示的動(dòng)作(僅限于少數(shù)及物動(dòng)詞)。A party is being held tonight.Step 4 Special cases1.像take care of, look after, talk about, think of等動(dòng)詞與介詞構(gòu)成的短語用于現(xiàn)在進(jìn)行時(shí)的被動(dòng)語態(tài)時(shí), 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(dòng)詞連用，表示對(duì)正在發(fā)生的事情的推測(cè)。She may be being punished by her mother.3．有時(shí)可表示按計(jì)劃或安排將要進(jìn)行的一個(gè)被動(dòng)動(dòng)作。A celebration is being held this weekend for his success.4．某些表示“狀態(tài)、心理活動(dòng)、存在”等的動(dòng)詞，如have，want，need，love，一般不用現(xiàn)在進(jìn)行時(shí)的被動(dòng)語態(tài)，而常用一般現(xiàn)在時(shí)的被動(dòng)語態(tài)。With the population increasing，more land is needed.5．“be＋under/in＋n.”可表示現(xiàn)在進(jìn)行時(shí)的被動(dòng)意義。My computer is under repair.＝My computer is being repaired.
新人教版高中英語必修2Unit 2 Wildlife Protection-Discovering Useful Structure教案一
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?
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
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.
