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直線與圓的位置關(guān)系教學(xué)設(shè)計(jì)人教A版高中數(shù)學(xué)選擇性必修第一冊(cè)
切線方程的求法1.求過(guò)圓上一點(diǎn)P(x0,y0)的圓的切線方程:先求切點(diǎn)與圓心連線的斜率k,則由垂直關(guān)系,切線斜率為-1/k,由點(diǎn)斜式方程可求得切線方程.若k=0或斜率不存在,則由圖形可直接得切線方程為y=b或x=a.2.求過(guò)圓外一點(diǎn)P(x0,y0)的圓的切線時(shí),常用幾何方法求解設(shè)切線方程為y-y0=k(x-x0),即kx-y-kx0+y0=0,由圓心到直線的距離等于半徑,可求得k,進(jìn)而切線方程即可求出.但要注意,此時(shí)的切線有兩條,若求出的k值只有一個(gè)時(shí),則另一條切線的斜率一定不存在,可通過(guò)數(shù)形結(jié)合求出.例3 求直線l:3x+y-6=0被圓C:x2+y2-2y-4=0截得的弦長(zhǎng).思路分析:解法一求出直線與圓的交點(diǎn)坐標(biāo),解法二利用弦長(zhǎng)公式,解法三利用幾何法作出直角三角形,三種解法都可求得弦長(zhǎng).解法一由{■(3x+y"-" 6=0"," @x^2+y^2 "-" 2y"-" 4=0"," )┤得交點(diǎn)A(1,3),B(2,0),故弦AB的長(zhǎng)為|AB|=√("(" 2"-" 1")" ^2+"(" 0"-" 3")" ^2 )=√10.解法二由{■(3x+y"-" 6=0"," @x^2+y^2 "-" 2y"-" 4=0"," )┤消去y,得x2-3x+2=0.設(shè)兩交點(diǎn)A,B的坐標(biāo)分別為A(x1,y1),B(x2,y2),則由根與系數(shù)的關(guān)系,得x1+x2=3,x1·x2=2.∴|AB|=√("(" x_2 "-" x_1 ")" ^2+"(" y_2 "-" y_1 ")" ^2 )=√(10"[(" x_1+x_2 ")" ^2 "-" 4x_1 x_2 "]" ┴" " )=√(10×"(" 3^2 "-" 4×2")" )=√10,即弦AB的長(zhǎng)為√10.解法三圓C:x2+y2-2y-4=0可化為x2+(y-1)2=5,其圓心坐標(biāo)(0,1),半徑r=√5,點(diǎn)(0,1)到直線l的距離為d=("|" 3×0+1"-" 6"|" )/√(3^2+1^2 )=√10/2,所以半弦長(zhǎng)為("|" AB"|" )/2=√(r^2 "-" d^2 )=√("(" √5 ")" ^2 "-" (√10/2) ^2 )=√10/2,所以弦長(zhǎng)|AB|=√10.
直線的兩點(diǎn)式方程教學(xué)設(shè)計(jì)人教A版高中數(shù)學(xué)選擇性必修第一冊(cè)
解析：①過(guò)原點(diǎn)時(shí)，直線方程為y＝－34x.②直線不過(guò)原點(diǎn)時(shí)，可設(shè)其方程為xa＋ya＝1，∴4a＋－3a＝1，∴a＝1.∴直線方程為x＋y－1＝0.所以這樣的直線有2條，選B.答案：B4.若點(diǎn)P(3,m)在過(guò)點(diǎn)A(2,-1),B(-3,4)的直線上,則m= . 解析:由兩點(diǎn)式方程得,過(guò)A,B兩點(diǎn)的直線方程為(y"-(-" 1")" )/(4"-(-" 1")" )=(x"-" 2)/("-" 3"-" 2),即x+y-1=0.又點(diǎn)P(3,m)在直線AB上,所以3+m-1=0,得m=-2.答案:-2 5.直線ax+by=1(ab≠0)與兩坐標(biāo)軸圍成的三角形的面積是 . 解析:直線在兩坐標(biāo)軸上的截距分別為1/a 與 1/b,所以直線與坐標(biāo)軸圍成的三角形面積為1/(2"|" ab"|" ).答案:1/(2"|" ab"|" )6.已知三角形的三個(gè)頂點(diǎn)A(0,4)，B(－2,6)，C(－8,0)．(1)求三角形三邊所在直線的方程；(2)求AC邊上的垂直平分線的方程．解析(1)直線AB的方程為y－46－4＝x－0－2－0，整理得x＋y－4＝0；直線BC的方程為y－06－0＝x＋8－2＋8，整理得x－y＋8＝0；由截距式可知，直線AC的方程為x－8＋y4＝1，整理得x－2y＋8＝0.(2)線段AC的中點(diǎn)為D(－4,2)，直線AC的斜率為12，則AC邊上的垂直平分線的斜率為－2，所以AC邊的垂直平分線的方程為y－2＝－2(x＋4)，整理得2x＋y＋6＝0.
高中思想政治人教版必修三《文化創(chuàng)新的途徑》說(shuō)課稿
二、說(shuō)學(xué)情本課的教學(xué)對(duì)象為高二學(xué)生，他們思維活躍已具備一定歸納能力和分析、綜合能力，能夠自主地分析現(xiàn)實(shí)生活中的一些文化行為，但看問(wèn)題往往比較偏激、片面，缺乏良好的邏輯思維能力。所以，在文化創(chuàng)新的途徑上要對(duì)他們進(jìn)行指導(dǎo)，以免走入誤區(qū)。三、教學(xué)目標(biāo)根據(jù)新課程標(biāo)準(zhǔn)、教材特點(diǎn)、學(xué)生的實(shí)際，我確定了如下教學(xué)目標(biāo)：【知識(shí)與能力目標(biāo)】1.理解文化創(chuàng)新的根本途徑和兩個(gè)基本途徑;2.了解文化創(chuàng)新過(guò)程中需要堅(jiān)持正確方向，克服錯(cuò)誤傾向。
人教版高中地理必修3區(qū)域農(nóng)業(yè)可持續(xù)發(fā)展—以我國(guó)東北地區(qū)為例說(shuō)課稿
（3）師生討論，提升思維深度。教師引領(lǐng)學(xué)生將討論由農(nóng)業(yè)生態(tài)破壞、土地利用不合理等表象問(wèn)題逐步深入到農(nóng)業(yè)結(jié)構(gòu)不合理、農(nóng)業(yè)技術(shù)落后等深層問(wèn)題，提升了學(xué)生思維的深度。（4）角色體驗(yàn)，突破難點(diǎn)落實(shí)重點(diǎn)。在農(nóng)民與保護(hù)區(qū)工作人員的角色體驗(yàn)活動(dòng)中，學(xué)生們嘗試換位思考，在沖突與交鋒中，在教師的引領(lǐng)下，重新認(rèn)識(shí)環(huán)境保護(hù)與區(qū)域經(jīng)濟(jì)發(fā)展的關(guān)系，在情感體驗(yàn)中加深對(duì)可持續(xù)發(fā)展內(nèi)涵的理解，小沖突凸顯大矛盾是本課設(shè)計(jì)的創(chuàng)新之處。2．注重對(duì)地理問(wèn)題的探究，突出地理學(xué)科本質(zhì)。地理學(xué)科具有綜合性、區(qū)域性特征，區(qū)域差異及人地和諧發(fā)展觀是我們?cè)诮虒W(xué)中應(yīng)該把握的基本特征，也是我們應(yīng)當(dāng)把握的地理學(xué)科的本質(zhì)特征，因此在本節(jié)課的設(shè)計(jì)中我注重抓住地理事物的空間特征、綜合性特征，以突出地理學(xué)科的本質(zhì)。
人教版新課標(biāo)高中物理必修1勻變速直線運(yùn)動(dòng)的位移與時(shí)間的關(guān)系說(shuō)課稿2篇
培養(yǎng)學(xué)生合作交流意識(shí)和探究問(wèn)題的能力，這一部分知識(shí)層層遞進(jìn)，符合學(xué)生由特殊到一般、由簡(jiǎn)單到復(fù)雜的認(rèn)知規(guī)律。4、互動(dòng)探究(1)極限思想的滲透讓學(xué)生閱讀“思考與討論”小版塊.培養(yǎng)學(xué)生的自學(xué)和閱讀能力提出下列問(wèn)題，進(jìn)行分組討論：a、用課本上的方法估算位移，其結(jié)果比實(shí)際位移大還是小？為什么？b、為了提高估算的精確度，時(shí)間間隔小些好還是大些好？為什么？針對(duì)學(xué)生回答的多種可能性加以評(píng)價(jià)和進(jìn)一步指導(dǎo)。讓學(xué)生從討論的結(jié)果中歸納得出：△t越小，對(duì)位移的估算就越精確。滲透極限的思想。通過(guò)小組內(nèi)分工合作，討論交流，培養(yǎng)學(xué)生交流合作的精神，以及搜集信息、處理信息的能力；通過(guò)小組間對(duì)比總結(jié)，使學(xué)生學(xué)會(huì)在對(duì)比中發(fā)現(xiàn)問(wèn)題，在解決問(wèn)題過(guò)程中提高個(gè)人能力；
人教版新課標(biāo)高中物理必修1勻變速直線運(yùn)動(dòng)的速度與時(shí)間的關(guān)系說(shuō)課稿2篇
設(shè)計(jì)意圖：幾道例題及練習(xí)題，其中例1小車由靜止啟動(dòng)開始行駛，以加速度 做勻加速運(yùn)動(dòng)，求2s后的速度大??？進(jìn)而變式到：小車遇到紅燈剎車……，充分體現(xiàn)了“從生活到物理，從物理到社會(huì)”的物理教學(xué)理念；例題及練習(xí)題由淺入深、由易到難、各有側(cè)重，體現(xiàn)新課標(biāo)提出的讓不同的學(xué)生在物理上得到不同發(fā)展的教學(xué)理念。這一環(huán)節(jié)總的設(shè)計(jì)意圖是反饋教學(xué)，內(nèi)化知識(shí)。(6) 小結(jié)歸納，拓展深化我的理解是，小結(jié)歸納不應(yīng)該僅僅是知識(shí)的簡(jiǎn)單羅列，而應(yīng)該是優(yōu)化認(rèn)知結(jié)構(gòu)，完善知識(shí)體系的一種有效手段，為充分發(fā)揮學(xué)生的主題作用，從學(xué)習(xí)的知識(shí)、方法、體驗(yàn)是那個(gè)方面進(jìn)行歸納，我設(shè)計(jì)了這么三個(gè)問(wèn)題：① 通過(guò)本節(jié)課的學(xué)習(xí)，你學(xué)會(huì)了哪些知識(shí)；② 通過(guò)本節(jié)課的學(xué)習(xí)，你最大的體驗(yàn)是什么；③ 通過(guò)本節(jié)課的學(xué)習(xí)，你掌握了哪些學(xué)習(xí)物理的方法？
空間向量基本定理教學(xué)設(shè)計(jì)人教A版高中數(shù)學(xué)選擇性必修第一冊(cè)
反思感悟用基底表示空間向量的解題策略1.空間中,任一向量都可以用一個(gè)基底表示,且只要基底確定,則表示形式是唯一的.2.用基底表示空間向量時(shí),一般要結(jié)合圖形,運(yùn)用向量加法、減法的平行四邊形法則、三角形法則,以及數(shù)乘向量的運(yùn)算法則,逐步向基向量過(guò)渡,直至全部用基向量表示.3.在空間幾何體中選擇基底時(shí),通常選取公共起點(diǎn)最集中的向量或關(guān)系最明確的向量作為基底,例如,在正方體、長(zhǎng)方體、平行六面體、四面體中,一般選用從同一頂點(diǎn)出發(fā)的三條棱所對(duì)應(yīng)的向量作為基底.例2.在棱長(zhǎng)為2的正方體ABCD-A1B1C1D1中,E,F分別是DD1,BD的中點(diǎn),點(diǎn)G在棱CD上,且CG=1/3 CD(1)證明:EF⊥B1C;(2)求EF與C1G所成角的余弦值.思路分析選擇一個(gè)空間基底,將(EF) ?,(B_1 C) ?,(C_1 G) ?用基向量表示.(1)證明(EF) ?·(B_1 C) ?=0即可;(2)求(EF) ?與(C_1 G) ?夾角的余弦值即可.(1)證明:設(shè)(DA) ?=i,(DC) ?=j,(DD_1 ) ?=k,則{i,j,k}構(gòu)成空間的一個(gè)正交基底.
人教版高中政治必修3思想道德修養(yǎng)與科學(xué)文化修養(yǎng)說(shuō)課稿
由此引導(dǎo)學(xué)生的深思，學(xué)生通過(guò)合作探究，幫助學(xué)生認(rèn)識(shí)到不注重思想道德修養(yǎng)，即使掌握了豐富的科學(xué)知識(shí)，也難以避免人格上的缺失，甚至危害社會(huì)。進(jìn)而總結(jié)出關(guān)系二：加強(qiáng)思想道德修養(yǎng)，能夠促進(jìn)科學(xué)文化修養(yǎng)?？茖W(xué)文化修養(yǎng)的意義播放感動(dòng)中國(guó)人物徐本禹先進(jìn)事跡短片。學(xué)生觀看完視頻后，思考：從徐本禹的事跡中，我們可以了解到我們加強(qiáng)科學(xué)文化修養(yǎng)的根本意義是什么？引導(dǎo)學(xué)生結(jié)合自身體會(huì)，發(fā)表各自見(jiàn)解，在此基礎(chǔ)上幫助學(xué)生總結(jié)出，要使自己的思想道德境界不斷升華，為人民服務(wù)的本領(lǐng)不斷提高，成為一個(gè)真正有知識(shí)文化涵養(yǎng)的人，成為一個(gè)脫離低級(jí)趣味的人、有益于人民的人。知識(shí)點(diǎn)三：追求更高的思想道德目標(biāo)根據(jù)教材110探究活動(dòng)（思想道德的差異、反應(yīng)人們世界觀、人生觀、價(jià)值觀的差異）思考：用公民的基本道德規(guī)范來(lái)衡量這些觀點(diǎn)，你贊成哪些觀點(diǎn)？反對(duì)哪些觀點(diǎn)？小組進(jìn)行合作探究，引導(dǎo)學(xué)生根據(jù)公民基本道德規(guī)范對(duì)這些價(jià)值觀進(jìn)行評(píng)析。
人教版高中政治必修3思想道德修養(yǎng)與科學(xué)文化修養(yǎng)說(shuō)課稿3篇
（3）改造主觀世界同改造客觀世界的關(guān)系。改造客觀世界同改造主觀世界，是相互聯(lián)系、相互作用的。改造主觀世界是為了更好地改造客觀世界，人們?cè)诟脑炜陀^世界的同時(shí)也改造著自己的主觀世界。通過(guò)自覺(jué)改造主觀世界，又能提高改造客觀世界的能力。師：人們對(duì)自己的思想道德境界的追求，是永遠(yuǎn)止境的。讓我們共同努力，在踐行社會(huì)主義思想道德的過(guò)程中，不斷追求更高的目標(biāo)，像無(wú)數(shù)先輩那樣，加入到為共產(chǎn)主義遠(yuǎn)大理想而奮斗的行列中吧！課堂小結(jié)通過(guò)本節(jié)課學(xué)習(xí)使我們認(rèn)識(shí)到面對(duì)現(xiàn)實(shí)生活中的思想道德沖突，加強(qiáng)知識(shí)文化修養(yǎng)和思想道德修養(yǎng)，不斷追求更高的思想道德目標(biāo)的必要性；把握了知識(shí)文化修養(yǎng)與思想道德修養(yǎng)的含義及其相互關(guān)系；明確了我們應(yīng)該和怎樣追求更高的思想道德目標(biāo)；認(rèn)識(shí)到這是一個(gè)永無(wú)止境的過(guò)程。我們要腳踏實(shí)地，從現(xiàn)在做起、從點(diǎn)滴小事做起，不斷提高知識(shí)文化修養(yǎng)和思想道德修養(yǎng)，追求更高的思想道德目標(biāo)。
人教版高中政治必修3思想道德修養(yǎng)與知識(shí)文化修養(yǎng)說(shuō)課稿
１.做學(xué)問(wèn)之前首先學(xué)會(huì)做人2.知識(shí)文化修養(yǎng)和思想道德修養(yǎng)的關(guān)系三.追求更高的思想道德目標(biāo)㈤ 說(shuō)教學(xué)評(píng)價(jià)和反思：1.這節(jié)課主要是以學(xué)生為主體，老師為主導(dǎo)，讓學(xué)生充分發(fā)表自己的看法，把理論的知識(shí)結(jié)合在實(shí)際的日常生活中，鼓勵(lì)學(xué)生充分發(fā)表自己的意見(jiàn)，能調(diào)動(dòng)學(xué)生學(xué)習(xí)的積極性，達(dá)到教學(xué)目的。這節(jié)課學(xué)生討論，發(fā)言的機(jī)會(huì)很多，但由于我校的學(xué)生的基礎(chǔ)薄弱，在發(fā)言時(shí)難免偏離老師引導(dǎo)的方向，甚至出現(xiàn)毫不相干的說(shuō)法，由于本人經(jīng)驗(yàn)不夠此時(shí)如何去引導(dǎo)他們可能做的還不夠好。2.新課程的教學(xué)，如何突破書本知識(shí)的局限，延伸更深層次的內(nèi)容是一個(gè)難題。本節(jié)課在知識(shí)的處理上，把道德的重要性與道德的層次兩個(gè)知識(shí)點(diǎn)補(bǔ)充了進(jìn)去，目的是讓學(xué)生在學(xué)習(xí)之前有一個(gè)情感的鋪墊，從而更好地達(dá)到教學(xué)目標(biāo)。
科學(xué)技術(shù)事業(yè)發(fā)展中心2024年上半年工作總結(jié)及下半年工作計(jì)劃
六、“保護(hù)呼倫湖助力美麗呼倫貝爾市”生態(tài)文明踐行活動(dòng)為持續(xù)做好呼倫湖流域的生態(tài)環(huán)境保護(hù)治理工作。XX組織開展“保護(hù)呼倫湖助力美麗呼倫貝爾”生態(tài)文明實(shí)踐行動(dòng)。此次全旗共有600余名干部職工統(tǒng)一行動(dòng)，對(duì)呼倫湖流域XX境內(nèi)生產(chǎn)生活垃圾、建筑垃圾及廢棄網(wǎng)圍欄進(jìn)行了集中清理，清掃垃圾500余袋，使呼倫湖及周邊地區(qū)環(huán)境得到了明顯改善。2024年下半年工作計(jì)劃1、為農(nóng)機(jī)安全生產(chǎn)打基礎(chǔ)，舉辦農(nóng)機(jī)駕駛員培訓(xùn)班。2、以人為本推進(jìn)科技興牧，組織農(nóng)牧民參加高素質(zhì)牧民培訓(xùn)班。3、增強(qiáng)基層科技技術(shù)力量，組織基層農(nóng)技人員下鄉(xiāng)開展教育培訓(xùn)。4、加強(qiáng)科技知識(shí)宣傳、培訓(xùn)，發(fā)揮好科技特派員服務(wù)農(nóng)牧民作用。5、認(rèn)真落實(shí)農(nóng)機(jī)構(gòu)置補(bǔ)貼項(xiàng)目資金，規(guī)范操作嚴(yán)格管理。6、嚴(yán)格農(nóng)機(jī)牌、證、照管理，杜絕無(wú)證駕駛，確保農(nóng)機(jī)安全生產(chǎn)。7、完成上級(jí)交辦的其他工作。
人教版高中政治必修3在文化生活中選擇說(shuō)課稿3篇
生2：每逢清明，或其他一些死者的紀(jì)念日，人們總要為死去的親人燒紙錢。這幅漫畫由燒紙錢演變?yōu)闊凹译姟?，說(shuō)明隨著社會(huì)環(huán)境的變化，人們根深蒂固的一些封建思想，還在影響著人們的生活。要花大力氣去破除封建迷信活動(dòng)。師：說(shuō)到底，算命、燒紙錢是封建迷信活動(dòng)，從文化角度來(lái)說(shuō)，是落后文化。我們一起來(lái)看看在現(xiàn)實(shí)生活中，還有哪些落后文化在影響著人們的生活。生1：在一些邊遠(yuǎn)落后地區(qū)，大人小孩生了病，不是看醫(yī)生，而是讓巫婆神漢來(lái)治，結(jié)果往往耽誤了診療時(shí)間，有的甚至還丟掉了性命。生2：“重男輕女”“多子多?！保t白事大操大辦現(xiàn)象在有些地方還很嚴(yán)重。師：這些落后文化都有哪些共同特征？在你看來(lái)，這些現(xiàn)象有哪些危害？生3：這些落后文化，在內(nèi)容上帶有迷信、愚昧、頹廢、庸俗等色彩，在形式上常常以傳統(tǒng)習(xí)俗的形式表現(xiàn)出來(lái)，如人們常見(jiàn)的看相、算命、測(cè)字、看風(fēng)水等。它會(huì)麻痹人的意志，使人消極、悲觀、絕望，對(duì)理想、前途、信念喪失信心；破壞社會(huì)的風(fēng)氣。
人教版高中政治必修3在文化生活中選擇說(shuō)課稿
一、教材分析文化市場(chǎng)和大眾傳媒的發(fā)展，給我們的文化生活帶來(lái)了許多可喜的變化。但是，文化市場(chǎng)的自發(fā)性和傳媒的商業(yè)性也引發(fā)了令人憂慮的現(xiàn)象。文化生活有“喜”也有“憂”，讓我們歡喜讓我們憂。面對(duì)形式多樣的文化生活，置身于文化生活的海洋之中，在文化生活中如何選擇、怎樣作出正確的選擇是亟待向?qū)W生解決的問(wèn)題。二、學(xué)情分析高二學(xué)生處于世界觀、人生觀和價(jià)值觀形成的關(guān)鍵時(shí)期，身心迅速發(fā)展，自我意識(shí)和獨(dú)立性較強(qiáng)，社會(huì)公共生活空間范圍越來(lái)越大，并且開始理性地思考社會(huì)和人生的重大問(wèn)題，他們可塑性強(qiáng)，但情緒仍然不穩(wěn)定，有多變性，容易沖動(dòng)或偏激，迫切需要提升思想意識(shí)，加強(qiáng)方法論的指導(dǎo)，使其在紛繁復(fù)雜的文化生活中能夠進(jìn)行正確的判斷與選擇。如果我們的學(xué)生不能把握正確的航向，是非觀念模糊，良莠不分，就會(huì)陷入落后文化和腐朽文化的泥沼而不能自拔，甚至造成無(wú)法挽回的惡果。
新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Listening &Speaking＆Talking教學(xué)設(shè)計(jì)
The theme of this section is “Talk about festival activities and festival experiences”.Festival and holiday is a relaxing and interesting topic for students. This part talks about the topic from the daily life of students’. In the part A ---Listening and Speaking, there are three conversations among different speakers from three countries(Japan, Rio and China), where the speakers are participating in or going to participate in the festivals and celebrations. So listening for the relationship among them is a fundamental task. Actually, with the globalization and more international communication, it is normal for Chinese or foreigners to witness different festivals and celebrations in or out of China. In the Conversation 1, a foreign reporter is interviewing a Japanese young girl who just had participated in the ceremony of the Coming-of-Age Day on the street and asking her feeling about the ceremony and the afterwards activities. Conversation 2, Chinese girl Li Mei is witnessing the Rio Carnival for the first time, and her friend Carla gives her some advice on the costumes which enables her to match with the carnival to have a good time. Conversation 3, a Chinese guide is showing a group of foreign visitors around the Lantern Festival and introducing the customs of the festival to them. The three conversations have a strong vitality and insert the festival and cultural elements from different countries. So perceiving the festivals and cultures from different countries is the second task. At the same time, the scripts also insert the targeted grammar --- v-ing as attributive and predicative, which students can perceive and experience in a real context and make a road for the further study. That is the third task. In the Part B--- Listening and Talking, the theme is “Talk about festival experience”, which is the common topic in our daily conversations. During the conversation, Song Lin, a Chinese student, asked Canadian friend Max about how to spend Christmas. In the conversation, Song Lin talked about experience and the feelings during the Chinese Spring Festival, during which there are not only some enjoyable things but some unpleasant things. After the listening, perhaps students find there are some similarities between Christmas and the Chinese Spring Festival as there are some differences in the origins and celebrations. For example, people always visit friends and relatives, decorate their houses, have a big dinner together, chat and give presents to each other.
新人教版高中英語(yǔ)必修3Unit 3 Diverse Cultures-Reading for Writing教學(xué)設(shè)計(jì)
The topic of this part is “Describe a place with distinctive cultural identity”.This section focuses on Chinese culture by introducing Chinatown, whose purpose is to show the relationship between the Chinese culture and American culture. The Chinese culture in Chinatown is an important part of American culture. Chinatown is an important window of spreading Chinese culture and the spirit homeland of oversea Chinese, where foreigners can experience Chinese culture by themselves.Concretely, the title is “Welcome to Chinatown!”, from which we can know that the article aims at introducing Chinatown. The author used the “Introduction--Body Paragraph--Conclusion” to describe the people, language, architecture, business, famous food and drinks and people’s activities, which can be a centre for Chinese culture and shows its unique charm.1. Read quickly to get main idea; read carefully to get the detailed information.2. Learn the characteristics of writing and language.3. Learn to introduce your own town according to the text.4. Learn to correct others’ writing.1. Learn the characteristics of writing and language.2. Learn to introduce your own town according to the text.Step 1 Lead in ---Small talkIn the reading part, we mentioned the Chinatown of San Francisco. How much do you know about Chinatown of San Francisco ?Chinatown is a main living place for Chinese immigrants, where you can see many Chinese-style buildings, costumes, operas, restaurants, music and even hear Chinese.Step 2 Before reading ---Predict the contentWhat is the writer’s purpose of writing this text ? How do you know ?From the title(Welcome to Chinatown) and some key words from the text(tourist, visit, visitors, experience), we can know the purpose of the text is to introduce Chinatown and show the relationship between Chinese culture and American culture.
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Discovering Useful Structure教學(xué)設(shè)計(jì)
The theme of the section is “Describe space facts and efforts to explore space”. Infinitives are one of non-finite verbs, as the subjects, objects, predicative, attributes and adverbials. This unit is about space exploration, which is a significant scientific activity, so every scientific activity has strong planning. Therefore, using the infinitives to show its purpose, explanations or restrictions is the best choice.1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use infinitives in oral and writing English. 1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use use infinitives in oral and writing English.Step 1 Lead in---Pair workLook at the following sentences and focus on the italicized infinitives. In pairs, discuss their functions. 1. I trained for a long time to fly airplanes as a fighter pilot..(作目的狀語(yǔ))2. As we all know, an astronaut needs to be healthy and calm in order to work in space..(作目的狀語(yǔ))3. First of all, you must be intelligent enough to get a related college degree..(作目的狀語(yǔ))4. Some scientist were determined to help humans realise their dream to explore space..(作定語(yǔ))5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space..(作定語(yǔ))Summary:1. 不定式的結(jié)構(gòu)：to+do原形。2. 分析上面的句子，我們知道在描述太空探索時(shí)，動(dòng)詞不定式不僅可以用來(lái)表目的，還可以用來(lái)作定語(yǔ)，表修飾。
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Listening&Speaking＆Talking教學(xué)設(shè)計(jì)二
The themes of this part are “Talk about how to become an astronaut” and “Talk about life in space”. As Neil Armstrong said “Mystery creates wonder and wonder is the basis of man’s desire to understand. Space is difficult for human to reach, therefore, humans are full of wonders about it. However, if wanting to achieve the dream of reaching the Moon, some of our human should work hard to be an astronaut at first. Part A(Talk about how to become an astronaut) is a radio interview in a radio studio, where the host asked the Chinese astronauts about his story how to become an astronaut. Yang Liwei told his dreamed to be an astronaut since childhood. Then he worked hard to get into college at 22. The next 10 years, he gradually became an experienced pilot. At the same time, to be an astronaut, he had to study hard English, science and astronomy and trained hard to keep in good physical and mental health and to practise using space equipment. Part B (Talk about life in space) is also an interview with the astronaut Brown, who is back on the earth. The host Max asked about his space life, such as his emotion about going back the earth, the eating, shower, brushing, hobbies and his work. Part A and Part B are interviews. So expressing curiosity about the guests’ past life is a communicative skill, which students should be guided to learn.1. Students can get detailed information about how Yang Liwei became an astronaut and Max’s space life.2. Students learn to proper listening strategy to get detailed information---listening for numbers and taking notes.3. Students can learn related sentences or phrases to express their curiosity like “ I wish to know...” “I’d love to know...”4. Students can learn more about the space and astronauts, even be interested in working hard to be an astronaut
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading and Thinking教學(xué)設(shè)計(jì)二
The theme of this unit focuses on “space exploration.” Students will learn about the training and experience needed to become an astronaut. The text is mainly about the development of space exploration. On the one hand, the text helps students to have a good understanding about the great feats humans have achieved, on the other hand, they will further understand the contributions that we Chinese have achieved, and feel confident and proud about our homeland and strengthen their love for our country. The teacher should instruct students to aim high and study harder to make great progress in the space career if possible.1. Read about the development and value of space exploration.2. Explore the mysteries of the universe and the achievements in space exploration.3. Skillfully use the vocabulary of this text to cultivate self-study ability 4. Develop cooperative learning ability through discussion.1. Enable the Ss to talk about the development and value of space exploration.2. Guide the Ss to summarize the main idea of each paragraph as well as the main idea of the text.3. Help Ss comprehend the main reasons for space exploration. Multi-media, textbook, notebooks.Step 1: Warming up and predictionLook at the title and the pictures of the text and predict what the text will be about?2. What are the main reasons for space exploration?
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading and Thinking教學(xué)設(shè)計(jì)一
Q4: What is the function of the International exploration ?Having astronauts from different countries on boardQ5: What can you learn from Para 4 ?China has made great achievements in exploring spaceQ6: What is the attitude to the space exploration ?SupportiveStep 6 Post reading---RetellPeople have always wanted to learn more about space. Before the mid-20th century, most people felt (1)_________ (travel) into space was an impossible dream. However, (2)____ the help of scientists, peoplesucceeded in realizing their dream (3) _________ (explore) space. On 4 October 1957, the Sputnik 1 satellite (4) ____________(launch) by the USSR. (5) ________________ scientists try to make sure nothing goes wrong, accidents can still happen. These disasters made everyone(6)___________(disappoint), but people still believe in the importance of (7) ________(carry) on space exploration. In 2003, China became the third country to (8)_____________ (independent) send humans into space. Then Shenzhou 6 and 7 completed (9)____ second manned orbit and the first Chinese spacewalk. In spite of the difficulties, scientists hope future (10)__________ (discovery) will not only enable us to understand the universe but also help us survive well into the future.Answers: 1. travelling 2. with 3. to explore 4. was launched 5. Although6. disappointed 7. carrying 8. independently 9. a 10. discoveriesStep 6 Post reading---Critical thinkingQ1: What do you think of the space exploration ? I think it is beneficial to us. Through further study of space, people will make full use of it in the future, such as the space experiments by Wang Yaping in Tian Gong 1.Q2: If you are determined to be an astronaut, what should you prepare at present ?First of all, I should study hard to get a related college degree. Besides, I must keep mental and physical healthy.Step 7. HomeworkTry to summarize the structure of the article by a mind map.
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading For Writing教學(xué)設(shè)計(jì)一
另一方面，其余的人反對(duì)這個(gè)計(jì)劃，因?yàn)樗赡軙?huì)導(dǎo)致一些不好的影響。7.I hold the belief that space exploration not only enable us to understand how the universe began but also help us survived well into the future.我堅(jiān)信探索太空不僅能夠使我們了解宇宙的起源而且能夠幫助我們更好地走進(jìn)未來(lái)。8.I think we should spend more time and money exploring space so as to provide new and better solutions to people's shortterm and longterm problems.為了給人類的短期和長(zhǎng)期問(wèn)題提供更新和更好的解決方法，我認(rèn)為我們應(yīng)該花更多的時(shí)間和金錢來(lái)探索太空。9．From my point of view，it is wrong of young people to depend on their telephones too much，which may do harm to both their physical and mental health.在我看來(lái)，年輕人過(guò)度依賴手機(jī)是不對(duì)的，因?yàn)樗鼈兛赡軙?huì)對(duì)他們的身心健康都有害。最近你班同學(xué)就“人類是否應(yīng)該進(jìn)行宇宙探索”這個(gè)問(wèn)題進(jìn)行了激烈的討論。有人認(rèn)為，探索宇宙不僅讓人類更好地了解宇宙的發(fā)展，還可以用來(lái)指導(dǎo)農(nóng)業(yè)生產(chǎn)，以及把一些探索太空的高新技術(shù)用于現(xiàn)實(shí)生活；也有一些人認(rèn)為探索太空花掉了大量的人力物力；影響了人們的生活水平。請(qǐng)你根據(jù)以下情況寫一篇報(bào)告并發(fā)表自己的觀點(diǎn)。注意：1.寫作內(nèi)容應(yīng)包括以上全部要點(diǎn)，可適當(dāng)發(fā)揮，使上下文連貫；
