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教師代表大會(huì)講話發(fā)言稿
第一，多理解。讓我們?cè)谶x擇后多理解。~~年前，我和現(xiàn)在許多剛畢業(yè)的年輕同事一樣，帶著各種情緒選擇了教育這個(gè)行業(yè)，也帶著憧憬和激情來(lái)到這里。彈指一揮間，我已跨入中年的行列，變成了傳說(shuō)中的老教師，經(jīng)歷了和大家一樣的酸甜苦辣后，我慢慢理解了教師這份職業(yè)的意義之所在。由鮮花和掌聲、關(guān)注與期待交織在一起的教師節(jié)，使更多的人把熱情與尊重，理解與關(guān)懷的目光投向了我們，使我們和學(xué)生一起渡過(guò)的每一個(gè)平凡的日日夜夜有了更加不尋常的意義。身為教師，我們也曾有年輕氣盛的躁動(dòng)和桃李滿園的欣喜;也曾有屢遭誤解的痛楚和不眠不休的焦慮。但，從把教師作為一種職業(yè)，到把教師當(dāng)作一種理想與事業(yè)的追求，一種挑戰(zhàn)自我、完善自我的方式，其間的過(guò)程，苦樂(lè)自知。
在青教賽總結(jié)大會(huì)上的發(fā)言
總之，在這屆全國(guó)青教賽中，絕大多數(shù)參賽選手都很好，都很專業(yè)，都很努力，但是也存在一些問(wèn)題，也出現(xiàn)了一些違規(guī)行為。（略）對(duì)于存在這些問(wèn)題的選手，評(píng)委會(huì)經(jīng)過(guò)集體討論，按照有關(guān)規(guī)則給予了相應(yīng)的處罰。按照總結(jié)大會(huì)的發(fā)言習(xí)慣，我也要表示感謝。第一，我要代表全體評(píng)委，感謝這屆大賽的主辦方組委會(huì)對(duì)我們的信任，讓我們擔(dān)任了競(jìng)賽的評(píng)委。第二，我要代表全體評(píng)委，感謝這屆大賽的承辦方清華大學(xué)，為我們提供了細(xì)致、周到、高效的服務(wù)和技術(shù)支持，特別是那些志愿者，不厭其煩地指導(dǎo)我們使用電子評(píng)分系統(tǒng)。對(duì)于像我這樣的老教師來(lái)說(shuō)，這還是挺有難度的。第三，我要代表全體評(píng)委，感謝參賽的選手。我們不僅從你們的講課中學(xué)到了新的知識(shí)和方法，也在你們身上看到了我們的過(guò)去，還看到中國(guó)高等教育的未來(lái)。雖然這不是未來(lái)的全景，但是令人欣慰令人鼓舞的畫面。第四，作為評(píng)委會(huì)主任，我還要感謝所有評(píng)委。這幾天，各位評(píng)委確實(shí)非常辛苦，有的老師還帶病堅(jiān)持工作。你們的敬業(yè)精神令我感動(dòng)！
母親節(jié)主題班會(huì)策劃方案
活動(dòng)一：語(yǔ)言活動(dòng)《我的媽媽長(zhǎng)的什么樣子》，每一個(gè)小朋友的媽媽都長(zhǎng)的不一樣，而你是否有仔細(xì)觀察過(guò)你的媽媽呢?請(qǐng)每個(gè)幼兒用簡(jiǎn)短的語(yǔ)言描述自己的媽媽。
幼兒園教案
1、與幼兒聊天，讓幼兒知道活動(dòng)的要求?！靶∨笥眩覀円呀?jīng)是大班的小朋友，下學(xué)期你們即將上小學(xué)了，你們知道作為小學(xué)生，上課有什么要求嗎？”（讓幼兒自己回答）“是的，上小學(xué)了我們就要學(xué)好多的知識(shí)，認(rèn)識(shí)很多字，今天老師就帶來(lái)了一些字卡，讓我們來(lái)認(rèn)識(shí)一下它們吧。”2、出示字卡，讓幼兒每次跟讀兩三次，再請(qǐng)幼兒觀察圖畫，講出圖畫的內(nèi)容，說(shuō)出圖畫與詞語(yǔ)的關(guān)系，并提醒幼兒每次記憶時(shí)，一定要邊看圖片，邊看字卡。3、詞語(yǔ)全部認(rèn)識(shí)完后，教師通過(guò)迅速抽字卡的方式，鞏固幼兒對(duì)詞語(yǔ)的記憶。（幼兒比較難記憶的詞語(yǔ)，教師加以解釋，讓幼兒加深對(duì)詞語(yǔ)的印象）4、反面練習(xí)，加深難度。通過(guò)沒(méi)有圖片的反面字卡，讓幼兒不依靠圖片進(jìn)行識(shí)字練習(xí)。
幼兒園說(shuō)課稿 我愛(ài)大樹(shù)和小花
我今天說(shuō)課的內(nèi)容是選自幼兒園建構(gòu)式課程中班下冊(cè)科學(xué)教育活動(dòng)《我愛(ài)大樹(shù)和小花》?！缎戮V要》科學(xué)領(lǐng)域目標(biāo)中明確提出了：培養(yǎng)幼兒愛(ài)護(hù)動(dòng)植物，關(guān)心周圍環(huán)境，親近大自然，珍惜自然資源，有初步的環(huán)保意識(shí)。在我們生活的周圍有各種各樣的樹(shù)和花，對(duì)于孩子來(lái)說(shuō)既熟悉又陌生，每每在戶外活動(dòng)時(shí)孩子總會(huì)不經(jīng)意地去看看、摸摸，有時(shí)還會(huì)說(shuō)一句，如：這顆樹(shù)好大哦，這朵花好漂亮哦，有時(shí)候還會(huì)進(jìn)行追問(wèn)，如：這顆叫什么樹(shù)，這叫什么花……然而隨著社會(huì)的進(jìn)步人類慢慢淡化了對(duì)身邊花草樹(shù)木的愛(ài)護(hù)，甚至親手破壞身邊的環(huán)境，如：亂砍樹(shù)木，亂摘花朵……結(jié)合中班建構(gòu)式課程中的主題教學(xué)《大樹(shù)和小花》的內(nèi)容，我設(shè)計(jì)了符合中班幼兒年齡特點(diǎn)的教學(xué)活動(dòng)《我愛(ài)大樹(shù)和小花》，引導(dǎo)幼兒要保護(hù)身邊的花草樹(shù)木，清楚花草樹(shù)木與人類的關(guān)系以及對(duì)人類的作用。通過(guò)掛圖與教材的閱讀理解保護(hù)花草樹(shù)木的重要性，從而萌發(fā)幼兒愛(ài)護(hù)花草樹(shù)木的情感。
新人教版高中英語(yǔ)必修3Unit 2 Morals and Virtues-Discovering Useful Structure教學(xué)設(shè)計(jì)
1. 表示時(shí)間。Hearing these stories, I’m skeptical about the place. = When I heard these stories. . . 2. 表示原因。Not knowing his address, I can’t send this book to him. = Because/Since/As I don’t know his address. . . 3. 表示結(jié)果。His father died, leaving him a lot of money. =. . . and left him a lot of money4. 表示條件。Going straight down the road, you will find the department store. = If you go straight down the road. . . 5. 表示讓步。Being tired, they went on working. =Although they were tired. . . 6. 表示行為方式、伴隨情況或補(bǔ)充說(shuō)明。He lay on the grass, staring at the sky for a long time. =. . . and stared at the sky for a long time注意：非謂語(yǔ)動(dòng)詞作狀語(yǔ)時(shí), 如所提供的動(dòng)詞不能和句子中的主語(yǔ)保持一致, 動(dòng)詞-ing形式必須有自己的邏輯主語(yǔ), 通常由名詞或代詞來(lái)?yè)?dān)任, 這就是獨(dú)立主格結(jié)構(gòu)。The last bus having gone, we had to walk home. (having gone的邏輯主語(yǔ)是the last bus, 而不是we)Weather permitting, the football match will be played on Friday. (permitting的邏輯主語(yǔ)是time, 而不是the football match)Step 7 Practice1. ________(study) hard, you are sure to get first prize. 2. People use plastic in their daily life, _______(leave) large amounts of waste. 3. ________(work) hard at your lessons, you are to succeed. 4. The old man, ____________(work) abroad for twenty years, is on the way back to his motherland. 5. ______________(finish) his homework, he was playing on the playground. Answers: 1. Studying 2. leaving 3. Working 4.having worked 5. Having finishedStep 8 HomeworkFinish the homework on Page 22.
新人教版高中英語(yǔ)必修3Unit 2 Morals and Virtues-Listening &Speaking＆Talking教學(xué)設(shè)計(jì)
Example:One day, a poor boy who was trying to pay his way through school by sending newspapers door to door found that he only had one dime(一角）left. He was so hungry that he decided to beg for a meal at the next house.However, he lost his nerve when a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked hungry so she brought him a large glass of milk. He drank it slowly, and then asked, “How much do I owe you?” “You don’t owe me anything,” she replied, “Mother has taught me never to accept pay for a kindness.” “Then I thank you from the bottom of my heart.” With these words, Howard Kelly left that house.Years later the woman became badly ill and was finally sent to the hospital in a big city. Dr. Howard Kelly, now famous, was called in. When he heard the name of the town she came from, a strange light filled his eyes. Dressed in his doctor’s clothes, Dr. Kelly went into her room and recognized her at once. From that day on, he gave special attention to her, and decided to do his best to save her life.At last the woman was saved. Dr. Kelly asked the business office to pass the final bill to him. He looked at it and then wrote something on the side. The bill was sent to the woman’s room. She was afraid to open it because she was sure that it would take the rest of her life to pay for it off. Finally she looked, and the note on the side of the bill caught her attention. She read these words: “Paid in full with a glass of milk, Dr. Howard Kelly.” Tear of joy flooded her eyes.
新人教版高中英語(yǔ)必修3Unit 2 Morals and Virtues-Reading and Thinking教學(xué)設(shè)計(jì)
The topic of this part is “Learn to make choices in life”.The Listening & Speaking & Talking part aims at the moral dilemmas, and this part is about making choices in life. The heroin is Lin Qiaozhi, a famous medical scientist, made a great contribution to our country’s medical care. Most importantly, her life experience can inspire our students whether in studying or the development of career. she had moral dilemmas and life choices, which are similar to the students who will step into society. Besides, Lin has quite good virtues like kindness, self-improvement, insistence, job-loving , generosity and responsibility, which is worth being learned.Concretely, this article is a biography about Lin Qiaozhi. The article tells her whole life according the timeline, among which the life choices is emphasized. For example, whether married or chased her dream, returned home or stayed abroad, family or public, her choices all reflected her faith, spirit, responsibility and devotion.1. Fast reading to get the detailed information about Lin Qiaozhi; careful reading to do the deductive information.2. Learn the reading skills--deductive judgement according the context.3. Study the structure features and language features. 4. Communicate about Lin’s life choices and reflect their own life choices.1. Learn the reading skills--deductive judgement according the context.2. Study the structure features and language features.3. Communicate about Lin’s life choices and reflect their own life choices.Step 1 Lead in---Small talkWhat are some important life choices?Importance choices: university study, jobs and marriage partners. Because they can determine our future.
新人教版高中英語(yǔ)必修3Unit 2 Morals and Virtues-Reading for Writing教學(xué)設(shè)計(jì)
1. 這個(gè)寓言是一個(gè)關(guān)于一位國(guó)王古寓言。 The fable is an old fable about a king.2.作者用這個(gè)故事讓讀者對(duì)于社區(qū)的問(wèn)題負(fù)有個(gè)人責(zé)任的必要印象深刻。The author used the story to impress upon readers with the need to take personal responsibility for problems in the community.3. 這個(gè)故事十分成功的實(shí)現(xiàn)了它的目的。The story was quite successful in achieving its purpose.Step 7 WritingPlease write a review of the story according the outline above.The fable is an old fable about a king who thought his people are lazy, so he put a large stone in the middle of the road and hides and waited to see if anyone will try to move it.The author used this story to impress upon readers with the need to take personal responsibility for problems in the community. The story was quite successful in achieving its purpose, and I liked it because it had a clear moral.However, while the moral of the story is clear, the actions of the king seemed pointless to me, because none of the characters in the story learnt anything. For this reason, I think there are better stories that can be used to impress upon people with the need for personal responsibility.Step 8 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1. Does the writer give a short description of the story ?2. Does the description include the most important details of the story ?3. Does the writer give his or her opinion about the character or their actions ?4. Is the review well-organised ? 5. Does the writer use the -ing form as the adverbial correctly in the writing ?6. Are there any grammar, spelling, or punctuation errors ?Step 9 HomeworkPut up your revised draft in the classroom or read it to your class.
新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Discovering useful structures教學(xué)設(shè)計(jì)
The grammatical structure of this unit is predicative clause. Like object clause and subject clause, predicative clause is one of Nominal Clauses. The leading words of predicative clauses are that, what, how, what, where, as if, because, etc.The design of teaching activities aims to guide students to perceive the structural features of predicative clauses and think about their ideographic functions. Beyond that, students should be guided to use this grammar in the context apporpriately and flexibly.1. Enable the Ss to master the usage of the predicative clauses in this unit.2. Enable the Ss to use the predicative patterns flexibly.3. Train the Ss to apply some skills by doing the relevant exercises.1.Guide students to perceive the structural features of predicative clauses and think about their ideographic functions.2.Strengthen students' ability of using predicative clauses in context, but also cultivate their ability of text analysis and logical reasoning competence.Step1: Underline all the examples in the reading passage, where noun clauses are used as the predicative. Then state their meaning and functions.1) One theory was that bad air caused the disease.2) Another theory was that cholera was caused by an infection from germs in food or water.3) The truth was that the water from the Broad Street had been infected by waste.Sum up the rules of grammar:1. 以上黑體部分在句中作表語(yǔ)。2. 句1、2、3中的that在從句中不作成分，只起連接作用。 Step2: Review the basic components of predicative clauses1.Definition
新人教版高中英語(yǔ)選修2Unit 4 Journey Across a Vast Land教學(xué)設(shè)計(jì)
當(dāng)孩子們由父母陪同時(shí)，他們才被允許進(jìn)入這個(gè)運(yùn)動(dòng)場(chǎng)。3．過(guò)去分詞(短語(yǔ))作狀語(yǔ)時(shí)的幾種特殊情況(1)過(guò)去分詞(短語(yǔ))在句中作時(shí)間、條件、原因、讓步狀語(yǔ)時(shí)，相當(dāng)于對(duì)應(yīng)的時(shí)間、條件、原因及讓步狀語(yǔ)從句。Seen from the top of the mountain (＝When it is seen from the top of the mountain), the whole town looks more beautiful.從山頂上看，整個(gè)城市看起來(lái)更美了。Given ten more minutes (＝If we are given ten more minutes), we will finish the work perfectly.如果多給十分鐘，我們會(huì)完美地完成這項(xiàng)工作。Greatly touched by his words (＝Because she was greatly touched by his words), she was full of tears.由于被他的話深深地感動(dòng)，她滿眼淚花。Warned of the storm (＝Though they were warned of the storm), the farmers were still working on the farm.盡管被警告了風(fēng)暴的到來(lái)，但農(nóng)民們?nèi)栽谵r(nóng)場(chǎng)干活。(2)過(guò)去分詞(短語(yǔ))在句中作伴隨、方式等狀語(yǔ)時(shí)，可改為句子的并列謂語(yǔ)或改為并列分句。The teacher came into the room, followed by two students (＝and was followed by two students)．后面跟著兩個(gè)學(xué)生，老師走進(jìn)了房間。He spent the whole afternoon, accompanied by his mom(＝and was accompanied by his mom)．他由母親陪著度過(guò)了一整個(gè)下午。
新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Learning about Language教學(xué)設(shè)計(jì)
Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention，the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys： 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat
新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Reading and thinking教學(xué)設(shè)計(jì)
Step 5： After learning the text, discuss with your peers about the following questions:1.John Snow believed Idea 2 was right. How did he finally prove it?2. Do you think John Snow would have solved this problem without the map?3. Cholera is a 19th century disease. What disease do you think is similar to cholera today?SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.keys:1. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.2. No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3. SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.Step 6: Consolidate what you have learned by filling in the blanks:John Snow was a well-known _1___ in London in the _2__ century. He wanted to find the _3_____ of cholera in order to help people ___4_____ it. In 1854 when a cholera __5__ London, he began to gather information. He ___6__ on a map ___7___ all the dead people had lived and he found that many people who had ___8____ (drink) the dirty water from the __9____ died. So he decided that the polluted water ___10____ cholera. He suggested that the ___11__ of all water supplies should be _12______ and new methods of dealing with ____13___ water be found. Finally, “King Cholera” was __14_____.Keys: 1. doctor 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk 9.pump 10.carried 11.source 12.examined 13.polluted 14.defeatedHomework: Retell the text after class and preview its language points
新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Using langauge教學(xué)設(shè)計(jì)
This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food coloring with them, making it look like the colors are quickly moving to escape from the soap.Listening text:? Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?? Bill: Much better, thanks. But how was it?? Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!? Bill: A hall of mirrors can be a lot of fun. What else did they have?? Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!? Bill: Come on, tell me!? Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!? Bill: Oh, I wish I had been there. Tell me more!? Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.? Bill: It all sounds so cool. I wish I could have gone with you? Judy: I know, but we can go together this weekend. I'd love to go there again!? Bill: That sounds like a great idea!
新人教版高中英語(yǔ)選修2Unit 3 Food and Culture-Discovering useful structures教學(xué)設(shè)計(jì)
The newspaper reported more than 100 people had been killed in the thunderstorm.報(bào)紙報(bào)道說(shuō)有一百多人在暴風(fēng)雨中喪生。(2)before、when、by the time、until、after、once等引導(dǎo)的時(shí)間狀語(yǔ)從句的謂語(yǔ)是一般過(guò)去時(shí)，以及by、before后面接過(guò)去的時(shí)間時(shí)，主句動(dòng)作發(fā)生在從句的動(dòng)作或過(guò)去的時(shí)間之前且表示被動(dòng)時(shí)，要用過(guò)去完成時(shí)的被動(dòng)語(yǔ)態(tài)。By the time my brother was 10, he had been sent to Italy.我弟弟10歲前就已經(jīng)被送到意大利了。Tons of rice had been produced by the end of last month. 到上月底已生產(chǎn)了好幾噸大米。(3) It was the first/second/last ... time that ...句中that引導(dǎo)的定語(yǔ)從句中，主語(yǔ)與謂語(yǔ)構(gòu)成被動(dòng)關(guān)系時(shí)，要用過(guò)去完成時(shí)的被動(dòng)語(yǔ)態(tài)。It was the first time that I had seen the night fact to face in one and a half years. 這是我一年半以來(lái)第一次親眼目睹夜晚的景色。(4)在虛擬語(yǔ)氣中，條件句表示與過(guò)去事實(shí)相反，且主語(yǔ)與謂語(yǔ)構(gòu)成被動(dòng)關(guān)系時(shí)，要用過(guò)去完成時(shí)的被動(dòng)語(yǔ)態(tài)。If I had been instructed by him earlier, I would have finished the task.如果我早一點(diǎn)得到他的指示，我早就完成這項(xiàng)任務(wù)了。If I had hurried, I wouldn't have missed the train.如果我快點(diǎn)的話，我就不會(huì)誤了火車。If you had been at the party, you would have met him. 如果你去了晚會(huì)，你就會(huì)見(jiàn)到他的。
新人教版高中英語(yǔ)選修2Unit 3 Food and Culture-Reading and thinking教學(xué)設(shè)計(jì)
The discourse explores the link between food and culture from a foreign’s perspective and it records some authentic Chinese food and illustrates the cultural meaning, gerography features and historic tradition that the food reflects. It is aimed to lead students to understand and think about the connection between food and culture. While teaching, the teacher should instruct students to find out the writing order and the writer’s experieces and feelings towards Chinese food and culture.1.Guide the students to read the text, sort out the information and dig out the topic.2.Understand the cultural connotation, regional characteristics and historical tradition of Chinese cuisine3.Understand and explore the relationship between food and people's personality4.Guide the students to use the cohesive words in the text5.Lead students to accurately grasp the real meaning of the information and improve the overall understanding ability by understanding the implied meaning behind the text.1. Enable the Ss to understand the structure and the writing style of the passage well.2. Lead the Ss to understand and think further about the connection between food and geography and local character traits.Step1: Prediction before reading. Before you read, look at the title, and the picture. What do you think this article is about?keys:It is about various culture and cuisine about a place or some countries.
新人教版高中英語(yǔ)選修2Unit 5 First Aid-Discovering useful structures教學(xué)設(shè)計(jì)
You have no excuse for not going.你沒(méi)有理由不去。He was punished for not having finished his homework.他因未完成作業(yè)而受到懲罰。2．動(dòng)詞ing形式復(fù)合結(jié)構(gòu)由物主代詞或人稱代詞賓格、名詞所有格或普通格加動(dòng)詞ing，即“sb./sb.'s＋doing”構(gòu)成。動(dòng)詞ing形式的復(fù)合結(jié)構(gòu)實(shí)際上是給動(dòng)詞ing形式加了一個(gè)邏輯主語(yǔ)。動(dòng)詞ing形式的復(fù)合結(jié)構(gòu)有四種形式：①形容詞性物主代詞＋動(dòng)詞ing②名詞所有格＋動(dòng)詞ing③代詞賓格＋動(dòng)詞ing④名詞＋動(dòng)詞ingHer coming to help encouraged all of us.她來(lái)幫忙鼓舞了我們所有人。The baby was made awake by the door suddenly shutting.這個(gè)嬰兒被突然的關(guān)門聲吵醒了。Can you imagine him/Jack cooking at home?你能想象他/杰克在家做飯的樣子嗎？無(wú)生命名詞無(wú)論是作主語(yǔ)還是作賓語(yǔ)都不能用第②種形式。Tom's winning first prize last year impressed me a lot.湯姆去年得了一等獎(jiǎng)使我印象深刻。Do you mind my/me/Jack's/Jack leaving now?你介意我/杰克現(xiàn)在離開(kāi)嗎？Excuse me for my not coming on time．很抱歉我沒(méi)能按時(shí)來(lái)。His father's being ill made him worried.他父親病了，他很擔(dān)心。We are looking forward to the singer's/the singer to give us a concert.我們盼望著這位歌手來(lái)給我們舉辦一場(chǎng)演唱會(huì)。
人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的概念 (2) 教學(xué)設(shè)計(jì)
二、典例解析例4. 用 10 000元購(gòu)買某個(gè)理財(cái)產(chǎn)品一年.（1）若以月利率0.400%的復(fù)利計(jì)息，12個(gè)月能獲得多少利息（精確到1元）？（2）若以季度復(fù)利計(jì)息，存4個(gè)季度，則當(dāng)每季度利率為多少時(shí)，按季結(jié)算的利息不少于按月結(jié)算的利息（精確到10^(-5)）？分析：復(fù)利是指把前一期的利息與本金之和算作本金，再計(jì)算下一期的利息.所以若原始本金為a元，每期的利率為r ，則從第一期開(kāi)始，各期的本利和a , a(1+r)，a(1+r)^2…構(gòu)成等比數(shù)列.解：（1）設(shè)這筆錢存 n 個(gè)月以后的本利和組成一個(gè)數(shù)列{a_n }，則{a_n }是等比數(shù)列，首項(xiàng)a_1=10^4 (1+0.400%)，公比 q=1+0.400%，所以a_12=a_1 q^11 〖=10〗^4 (1+0.400%)^12≈10 490.7.所以，12個(gè)月后的利息為10 490.7-10^4≈491（元）.解：（2）設(shè)季度利率為 r ，這筆錢存 n 個(gè)季度以后的本利和組成一個(gè)數(shù)列{b_n }，則{b_n }也是一個(gè)等比數(shù)列，首項(xiàng) b_1=10^4 (1+r)，公比為1+r，于是 b_4=10^4 (1+r)^4.
人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的概念（2）教學(xué)設(shè)計(jì)
二、典例解析例3.某公司購(gòu)置了一臺(tái)價(jià)值為220萬(wàn)元的設(shè)備，隨著設(shè)備在使用過(guò)程中老化，其價(jià)值會(huì)逐年減少.經(jīng)驗(yàn)表明，每經(jīng)過(guò)一年其價(jià)值會(huì)減少d(d為正常數(shù)）萬(wàn)元.已知這臺(tái)設(shè)備的使用年限為10年，超過(guò)10年 ，它的價(jià)值將低于購(gòu)進(jìn)價(jià)值的5%，設(shè)備將報(bào)廢.請(qǐng)確定d的范圍.分析：該設(shè)備使用n年后的價(jià)值構(gòu)成數(shù)列{an}，由題意可知，an＝an－1－d (n≥2). 即：an－an－1＝－d.所以{an}為公差為－d的等差數(shù)列.10年之內(nèi)（含10年），該設(shè)備的價(jià)值不小于（220×5%=）11萬(wàn)元；10年后，該設(shè)備的價(jià)值需小于11萬(wàn)元．利用{an}的通項(xiàng)公式列不等式求解．解：設(shè)使用n年后，這臺(tái)設(shè)備的價(jià)值為an萬(wàn)元，則可得數(shù)列{an}．由已知條件，得an＝an－1－d（n≥2）．所以數(shù)列{an}是一個(gè)公差為－d的等差數(shù)列.因?yàn)閍1＝220－d，所以an＝220－d＋(n－1)(－d)＝220－nd. 由題意，得a10≥11，a11＜11. 即：{█("220－10d≥11" @"220－11d＜11" )┤解得19<d≤20.9所以，d的求值范圍為19<d≤20.9
人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的前n項(xiàng)和公式 (2) 教學(xué)設(shè)計(jì)
二、典例解析例10. 如圖，正方形ABCD 的邊長(zhǎng)為5cm ，取正方形ABCD 各邊的中點(diǎn)E,F,G,H, 作第2個(gè)正方形 EFGH，然后再取正方形EFGH各邊的中點(diǎn)I,J,K,L，作第3個(gè)正方形IJKL ，依此方法一直繼續(xù)下去. (1) 求從正方形ABCD 開(kāi)始，連續(xù)10個(gè)正方形的面積之和；(2) 如果這個(gè)作圖過(guò)程可以一直繼續(xù)下去，那么所有這些正方形的面積之和將趨近于多少？分析：可以利用數(shù)列表示各正方形的面積，根據(jù)條件可知，這是一個(gè)等比數(shù)列。解：設(shè)正方形的面積為a_1，后續(xù)各正方形的面積依次為a_2, a_(3, ) 〖…,a〗_n,…，則a_1=25,由于第k+1個(gè)正方形的頂點(diǎn)分別是第k個(gè)正方形各邊的中點(diǎn)，所以a_(k+1)=〖1/2 a〗_k,因此{(lán)a_n}，是以25為首項(xiàng)，1/2為公比的等比數(shù)列.設(shè){a_n}的前項(xiàng)和為S_n（1）S_10=(25×[1-(1/2)^10 ] )/("1 " -1/2)=50×[1-(1/2)^10 ]=25575/512所以，前10個(gè)正方形的面積之和為25575/512cm^2.(2)當(dāng)無(wú)限增大時(shí)，無(wú)限趨近于所有正方形的面積和