-
兩點間的距離公式教學設(shè)計人教A版高中數(shù)學選擇性必修第一冊
一、情境導學在一條筆直的公路同側(cè)有兩個大型小區(qū),現(xiàn)在計劃在公路上某處建一個公交站點C,以方便居住在兩個小區(qū)住戶的出行.如何選址能使站點到兩個小區(qū)的距離之和最小?二、探究新知問題1.在數(shù)軸上已知兩點A、B，如何求A、B兩點間的距離？提示：|AB|＝|xA－xB|.問題2：在平面直角坐標系中能否利用數(shù)軸上兩點間的距離求出任意兩點間距離？探究.當x1≠x2，y1≠y2時，|P1P2|＝？請簡單說明理由．提示：可以，構(gòu)造直角三角形利用勾股定理求解．答案：如圖，在Rt △P1QP2中，|P1P2|2＝|P1Q|2＋|QP2|2，所以|P1P2|＝?x2－x1?2＋?y2－y1?2.即兩點P1(x1，y1)，P2(x2，y2)間的距離|P1P2|＝?x2－x1?2＋?y2－y1?2.你還能用其它方法證明這個公式嗎？2．兩點間距離公式的理解(1)此公式與兩點的先后順序無關(guān)，也就是說公式也可寫成|P1P2|＝?x2－x1?2＋?y2－y1?2.(2)當直線P1P2平行于x軸時，|P1P2|＝|x2－x1|.當直線P1P2平行于y軸時，|P1P2|＝|y2－y1|.
圓的標準方程教學設(shè)計人教A版高中數(shù)學選擇性必修第一冊
(1)幾何法它是利用圖形的幾何性質(zhì),如圓的性質(zhì)等,直接求出圓的圓心和半徑,代入圓的標準方程,從而得到圓的標準方程.(2)待定系數(shù)法由三個獨立條件得到三個方程,解方程組以得到圓的標準方程中三個參數(shù),從而確定圓的標準方程.它是求圓的方程最常用的方法,一般步驟是:①設(shè)——設(shè)所求圓的方程為(x-a)2+(y-b)2=r2;②列——由已知條件,建立關(guān)于a,b,r的方程組;③解——解方程組,求出a,b,r;④代——將a,b,r代入所設(shè)方程,得所求圓的方程.跟蹤訓練1．已知△ABC的三個頂點坐標分別為A(0,5)，B(1，－2)，C(－3，－4)，求該三角形的外接圓的方程．[解] 法一：設(shè)所求圓的標準方程為(x－a)2＋(y－b)2＝r2.因為A(0,5)，B(1,－2)，C(－3,－4)都在圓上，所以它們的坐標都滿足圓的標準方程，于是有?0－a?2＋?5－b?2＝r2，?1－a?2＋?－2－b?2＝r2，?－3－a?2＋?－4－b?2＝r2.解得a＝－3，b＝1，r＝5.故所求圓的標準方程是(x＋3)2＋(y－1)2＝25.
圓的一般方程教學設(shè)計人教A版高中數(shù)學選擇性必修第一冊
情境導學前面我們已討論了圓的標準方程為(x-a)2+(y-b)2=r2,現(xiàn)將其展開可得：x2+y2-2ax-2bx+a2+b2-r2=0.可見,任何一個圓的方程都可以變形x2+y2+Dx+Ey+F=0的形式.請大家思考一下,形如x2+y2+Dx+Ey+F=0的方程表示的曲線是不是圓?下面我們來探討這一方面的問題.探究新知例如,對于方程x^2+y^2-2x-4y+6=0,對其進行配方，得〖(x-1)〗^2+(〖y-2)〗^2=-1,因為任意一點的坐標 (x,y) 都不滿足這個方程，所以這個方程不表示任何圖形，所以形如x2+y2+Dx+Ey+F=0的方程不一定能通過恒等變換為圓的標準方程，這表明形如x2+y2+Dx+Ey+F=0的方程不一定是圓的方程.一、圓的一般方程（1）當D2+E2-4F>0時,方程x2+y2+Dx+Ey+F=0表示以(-D/2,-E/2)為圓心,1/2 √(D^2+E^2 "-" 4F)為半徑的圓,將方程x2+y2+Dx+Ey+F=0，配方可得〖(x+D/2)〗^2+(〖y+E/2)〗^2=(D^2+E^2-4F)/4（2）當D2+E2-4F=0時,方程x2+y2+Dx+Ey+F=0，表示一個點(-D/2,-E/2)（3）當D2+E2-4F0);
人教版高中政治必修3思想道德修養(yǎng)與科學文化修養(yǎng)說課稿
由此引導學生的深思，學生通過合作探究，幫助學生認識到不注重思想道德修養(yǎng)，即使掌握了豐富的科學知識，也難以避免人格上的缺失，甚至危害社會。進而總結(jié)出關(guān)系二：加強思想道德修養(yǎng)，能夠促進科學文化修養(yǎng)?？茖W文化修養(yǎng)的意義播放感動中國人物徐本禹先進事跡短片。學生觀看完視頻后，思考：從徐本禹的事跡中，我們可以了解到我們加強科學文化修養(yǎng)的根本意義是什么？引導學生結(jié)合自身體會，發(fā)表各自見解，在此基礎(chǔ)上幫助學生總結(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，成為一個真正有知識文化涵養(yǎng)的人，成為一個脫離低級趣味的人、有益于人民的人。知識點三：追求更高的思想道德目標根據(jù)教材110探究活動（思想道德的差異、反應(yīng)人們世界觀、人生觀、價值觀的差異）思考：用公民的基本道德規(guī)范來衡量這些觀點，你贊成哪些觀點？反對哪些觀點？小組進行合作探究，引導學生根據(jù)公民基本道德規(guī)范對這些價值觀進行評析。
人教版高中政治必修3思想道德修養(yǎng)與科學文化修養(yǎng)說課稿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，人們在改造客觀世界的同時也改造著自己的主觀世界。通過自覺改造主觀世界，又能提高改造客觀世界的能力。師：人們對自己的思想道德境界的追求，是永遠止境的。讓我們共同努力，在踐行社會主義思想道德的過程中，不斷追求更高的目標，像無數(shù)先輩那樣，加入到為共產(chǎn)主義遠大理想而奮斗的行列中吧！課堂小結(jié)通過本節(jié)課學習使我們認識到面對現(xiàn)實生活中的思想道德沖突，加強知識文化修養(yǎng)和思想道德修養(yǎng)，不斷追求更高的思想道德目標的必要性；把握了知識文化修養(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；認識到這是一個永無止境的過程。我們要腳踏實地，從現(xiàn)在做起、從點滴小事做起，不斷提高知識文化修養(yǎng)和思想道德修養(yǎng)，追求更高的思想道德目標。
人教版高中政治必修3思想道德修養(yǎng)與知識文化修養(yǎng)說課稿
１.做學問之前首先學會做人2.知識文化修養(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㈤ 說教學評價和反思：1.這節(jié)課主要是以學生為主體，老師為主導，讓學生充分發(fā)表自己的看法，把理論的知識結(jié)合在實際的日常生活中，鼓勵學生充分發(fā)表自己的意見，能調(diào)動學生學習的積極性，達到教學目的。這節(jié)課學生討論，發(fā)言的機會很多，但由于我校的學生的基礎(chǔ)薄弱，在發(fā)言時難免偏離老師引導的方向，甚至出現(xiàn)毫不相干的說法，由于本人經(jīng)驗不夠此時如何去引導他們可能做的還不夠好。2.新課程的教學，如何突破書本知識的局限，延伸更深層次的內(nèi)容是一個難題。本節(jié)課在知識的處理上，把道德的重要性與道德的層次兩個知識點補充了進去，目的是讓學生在學習之前有一個情感的鋪墊，從而更好地達到教學目標。
空間向量基本定理教學設(shè)計人教A版高中數(shù)學選擇性必修第一冊
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,一般要結(jié)合圖形,運用向量加法、減法的平行四邊形法則、三角形法則,以及數(shù)乘向量的運算法則,逐步向基向量過渡,直至全部用基向量表示.3.在空間幾何體中選擇基底時,通常選取公共起點最集中的向量或關(guān)系最明確的向量作為基底,例如,在正方體、長方體、平行六面體、四面體中,一般選用從同一頂點出發(fā)的三條棱所對應(yīng)的向量作為基底.例2.在棱長為2的正方體ABCD-A1B1C1D1中,E,F分別是DD1,BD的中點,點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)成空間的一個正交基底.
高中歷史人教版必修一《第2課秦朝中央集權(quán)制度的形成》說課稿
【課件展示】《秦朝中央集權(quán)制度的建立》《教材簡析》《教學目標》《教法簡介》《教學過程設(shè)計及特色簡述》【師】本節(jié)內(nèi)容以秦代政治體制和官僚系統(tǒng)的建立為核心內(nèi)容，主要包括秦朝中央集權(quán)制的建立的背景、建立過程及影響。本節(jié)內(nèi)容在整個單元中起到承前啟后的作用，在整個模塊中也有相當重要的地位。讓學生了解中國古代中央集權(quán)政治體制的初建對于理解我國古代政治制度的發(fā)展乃至我們今天的政治體制是十分必要的。 本堂課我采用多媒體和講授法及歷史辯論法相結(jié)合，通過巧妙設(shè)計問題情境，調(diào)動學生的學習積極性，使學生主動學習，探究思考。教師引導和組織學生采取小組討論、情景體驗等方式，達到教學目標。 本節(jié)內(nèi)容分三個部分，下面首先看秦朝中央集權(quán)制度建立的前提即秦的統(tǒng)一
人教版高中歷史必修3現(xiàn)代中國教育的發(fā)展說課稿
一、教材分析下面我來談一談對教材的認識：主要從教材的地位和作用、以及在此基礎(chǔ)上確立的教學目標、教學重難點這三個方面來談。首先，來談教材的地位和作用：本課教材內(nèi)容主要從三個方面向?qū)W生介紹了現(xiàn)代中國教育的發(fā)展狀況和趨勢：人民教育的奠基、動亂中的教育和教育的復興，全面講述了新中國教育的三個階段。本課是文化史中中國史部分的最后一課， 也是必修三冊書中唯一涉及教育的一課。而教育是思想文化史中的重要組成部分，江澤民同志在談到教育的時候曾經(jīng)說過，“百年大計，教育為本。教育為本，在于育人”。教育是關(guān)系國計民生的大事。學生通過學習新中國教育發(fā)展的史實，理解“科教興國”、“國運興衰，系于教育”的深刻含義。最終由此激發(fā)學生樹立“知識改變命運、讀書成就人生”的信念，樹立勤奮學習、成人成才、報效祖國、服務(wù)社會的崇高理想。故本課的教學有極大的現(xiàn)實意義。談完了教材的地位和作用，我再分析一下教學目標：
高中歷史人教版必修二《第2課古代手工業(yè)的進步》說課稿
二、教學目標：1、知識與能力（1）了解我國古代冶金、制瓷、絲織業(yè)發(fā)展的基本情況；（2）了解中國古代手工業(yè)享譽世界的史實，培養(yǎng)學生的民族自信心。2、過程與方法（1）通過大量的歷史圖片，指導學生欣賞一些精湛的手工業(yè)藝術(shù)品，提高學生探究古代手工業(yè)的興趣；（2）運用歷史材料引導學生歸納古代手工業(yè)產(chǎn)品的基本特征。3、情感態(tài)度與價值觀：通過本課教學，使學生充分地感受到我國古代人民的聰明與才智，認識到古代許多手工業(yè)品具有較高的藝術(shù)價值，以及在世界上的領(lǐng)先地位和對世界文明的影響，增強民族自豪感。
新人教版高中英語必修3Unit 1 Festivals and Celebrations-Reading and Thinking教學設(shè)計
The topic of this part is “Discover the reasons for festivals and celebrations.The Listening & Speaking & Talking part aims at talking about the experiences and feelings or emotions about the festivals and celebrations. This section aims at detecting the reason why the people celebrate the festivals, the time, the places, the types and the way of celebrations. It also explains why some traditions in the old celebrations are disappearing, like the firecrackers in the big cities and some new things are appearing like the prosperity of business or commerce. 1. Students can talk about what festivals they know and the reasons and the way of celebrating them.2. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.3. Students can understand the past, the present situation of some festival around the world and why there are some changes about them. 4. Students can have the international awareness about the festivals.1. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.2. Students can understand the past, the present situation of some festival around the world and why there are some changes about them.Step 1 Lead in---Small talkWhat festival do you like best ? Why ?I like the Spring Festivals because I can set off the fireworks, receive the lucky money and enjoy the Gala with my families.Step 2 Before reading---Pair workWhy do people celebrate different festivals ?The Spring Festivals is to celebrate the end of winter and the coming of spring and new life.The Mid-autumn Day is to celebrate the harvest and admire the moon.
新人教版高中英語必修3Unit 1 Festivals and Celebrations-Listening &Speaking＆Talking教學設(shè)計
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.
新人教版高中英語必修3Unit 1 Festivals and Celebrations-Reading for Writing教學設(shè)計一
The topic of this part is “Write about your festival experience”.During the Listening and Speaking and Talking, students are just asked to say out their festival experiences such as the Spring Festival, Mid-autumn Day, but this part students will be asked to write down their own festival experiences. During the reading part, it introduces the Naadam Festival in Inner Mongolia Autonomous Region, which can give students a good example to imitate. Students not only learn the festival, but touch and feel the Inner Mongolian’s character, the spirit and cultural atmosphere, which can help students form the cultural awareness and learn to enjoy and value the diversity of Chinese culture.Concretely, the dairy tells the experience that the author spent the Naadam Festival in Inner Mongolia Autonomous Region with his/her friend. The structure is clear. In the opening paragraph, it introduces the topic of the Naadam Festival and the whole feeling. Then it introduces the items of the festival like the ceremony, wrestling and horse racing. Finally, it summarizes this experience. Because this part is a travel journal, we must guide students pay more attention to these details: 1. use the first person. 2. use the past tense to tell the past thing and use the present or future tense to describe the scenery. 3. use the timeline to tell the development. 4. be careful for the author’s psychology, emotion and feeling, etc.1. Read quickly to get main idea; read carefully to get the detailed information about Naadam Festival.2. Learn the structure of the reading article and language.3. Write an article about a festival experience4. Learn to use the psychology, emotions and feeling in the writing.1. Write an article about a festival experience.2. Use the structure of the reading article and language.
新人教版高中英語必修3Unit 3 Diverse Cultures-Discovering Useful Structure教學設(shè)計
Step 4 PracticeRead the conversation. Find out which words have been left out.Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Any recommendations for places to visit?Linlin: Wow, cool! Guizhou is a province with a lot of cultural diversity. Places to visit...well, definitely the Huangguoshu Waterfall first.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have. Why ?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King.Justin: Really? Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages. You’ll find Chinese culture is much more diverse than you thought.Justin:Sounds great, thanks.Answers:Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Do you have any recommendations for places to visit?Linlin: Wow, that’s cool! Guizhou is a province with a lot of cultural diversity. What are some places to visit in Guizhou ? Well, definitely the Huangguoshu Waterfall is the first place to visit in Guizhou Province.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have heard of the Chinese novel Journey to the West . Why do you ask if I have heard of the Chinese novel Journey to the West?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King from Journey to the West.Justin: That’s really true? It’s Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages on your trip to Guizhou Province. You’ll find Chinese culture is much more diverse than you thought it was.Justin:This all sounds great, thanks.
新人教版高中英語必修3Unit 3 Diverse Cultures-Reading and Thinking教學設(shè)計
Discuss these questions in groups.Q1: Have you ever been to a place that has a diverse culture ? What do you think about the culture diversity ?One culturally diverse place that I have been to is Harbin, the capital city of Heilongjiang Province. I went there last year with my family to see the Ice and Snow Festival, and I was amazed at how the culture as different to most other Chinese cities. There is a big Russian influence there, with beautiful Russian architecture and lots of interesting restaurants. I learnt that Harbin is called “the Oriental Moscow” and that many Russians settled there to help build the railway over 100 years ago.Q2: What are the benefits and challenges of cultural diversity ?The benefits: People are able to experience a wide variety of cultures, making their lives more interesting, and it can deepen the feelings for our national culture, it is also helpful for us to learn about other outstanding culture, which helps improve the ability to respect others. The challenges: People may have trouble communicating or understanding each other, and it may lead to disappearance of some civilizations and even make some people think “The western moon is rounder than his own.”Step 7 Post reading---RetellComplete the passage according to the text.Today, I arrived back in San Francisco, and it feels good (1) _____(be) back in the city again. The city succeeded in (2)_________ (rebuild) itself after the earthquake that (3)________ (occur) in 1906, and I stayed in the Mission District, enjoying some delicious noodles mixed with cultures. In the afternoon, I headed to a local museum (4)____ showed the historical changes in California. During the gold rush, many Chinese arrived, and some opened up shops and restaurants in Chinatown to earn a (5)_____ (live). Many others worked on (6)______ (farm), joined the gold rush, or went to build the railway that connected California to the east. The museum showed us (7)____ America was built by immigrants from (8)________ (difference) countries and cultures. In the evening, I went to Chinatown, and ate in a Cantonese restaurant that served food on (9)________(beauty) china plates. Tomorrow evening, I’m going to (10)__ jazz bar in the Richmond District. 答案：1. to be 2. rebuilding 3. occurred 4. that 5.living6. farms 7.how 8. different 9. beautiful 10. a
新人教版高中英語必修3Unit 4 Space Exploration-Discovering Useful Structure教學設(shè)計
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)2. As we all know, an astronaut needs to be healthy and calm in order to work in space..(作目的狀語)3. First of all, you must be intelligent enough to get a related college degree..(作目的狀語)4. Some scientist were determined to help humans realise their dream to explore space..(作定語)5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space..(作定語)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，動詞不定式不僅可以用來表目的，還可以用來作定語，表修飾。
新人教版高中英語必修3Unit 4 Space Exploration-Reading and Thinking教學設(shè)計一
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.
新人教版高中英語必修3Unit 4 Space Exploration-Reading for Writing教學設(shè)計二
⑦在我看來, 探索太空是值得的。As far as I am concerned, it is worthwhile to explore the space.Step 10 Writing---draftRecently, students in our class have had heated a discussion on whether space is worth exploring. Students hold different ideas about it.30% of us think space exploration is not worthwhile. They think space is too far away from us and our daily life and is a waste of money. And the money spent on space exploration can be used to solve the earth’s problems such as starvation and pollution.On the other hand，70% think space is worth exploring because we have benefited a lot from it，such as using satellites for communication and weather forecast. What’s more，with further space research，we may solve the population problem by moving to other planets one day. Also，space research will enable us to find new sources to solve the problem of energy shortages on the earth.As far as I am concerned, it is worthwhile to explore the space. Not only can it promote the development of society but also enrich our life. Step 11 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1.Does the writer explain why he/she changed/wanted to change?2.Does the writer tell how the changes have improved or will improve his/her life?3.Is the text well－organised?4.Does the writer use words and expressions to show similarities and differences?5.Are there any grammar or spelling errors?6.Does the writer use correct punctuation？
新人教版高中英語必修3Unit 4 Space Exploration-Reading For Writing教學設(shè)計一
另一方面，其余的人反對這個計劃，因為它可能會導致一些不好的影響。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未來。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期問題提供更新和更好的解決方法，我認為我們應(yīng)該花更多的時間和金錢來探索太空。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，年輕人過度依賴手機是不對的，因為它們可能會對他們的身心健康都有害。最近你班同學就“人類是否應(yīng)該進行宇宙探索”這個問題進行了激烈的討論。有人認為，探索宇宙不僅讓人類更好地了解宇宙的發(fā)展，還可以用來指導農(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)實生活；也有一些人認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。請你根據(jù)以下情況寫一篇報告并發(fā)表自己的觀點。注意：1.寫作內(nèi)容應(yīng)包括以上全部要點，可適當發(fā)揮，使上下文連貫；
新人教版高中英語必修3Unit 5 The Value of Money- Discovering Useful Structure教學設(shè)計
Step 3 Meaning1. 過去將來時表示從過去某一時間來看將要發(fā)生的動作或存在的狀態(tài), 常用在賓語從句中。一般由“would/should +動詞原形”構(gòu)成。She hoped that they would meet again someday. 她希望將來有一天他們能再見面。2. was/were going to+動詞原形: 表示過去將要發(fā)生或很有可能發(fā)生的動作, 常用于口語中, 表示預言、意圖或者打算等。He was going to start work the following week. 他打算下星期開始工作。3. was/were about to do: 常用來表示即將發(fā)生的動作, “剛要/正要做……”。注意該結(jié)構(gòu)不與任何時間狀語連用。I felt that something terrible was about to happen. 我感到某種可怕的事情即將發(fā)生。4.was/were to do: 表示“曾計劃做某事”, 如果表示“本來計劃做某事, 動作沒實現(xiàn)”, 則需用 “was/were to have done”。She said she was to have told me about the accident. 她說她本來想告訴我關(guān)于事故的事。5.Start, go, come, leave, see, meet等動詞的過去進行時: 表示就過去某一時刻而言即將發(fā)生的動作。She was coming later. 她隨后就來。I had just put on my overcoat and was leaving to visit a friend of mine. 我剛穿上外套要去看我的一個朋友。