8.一束光線從點A(3,3)出發(fā),經(jīng)過y軸上點C反射后經(jīng)過點B(1,0)則光線從A點到B點經(jīng)過的路線長是( )A.4 B.5 C.6 D.7第四環(huán)節(jié)課堂小結(jié)1、關(guān)于y軸對稱的兩個圖形上點的坐標特征:(x , y)——(- x , y)2、關(guān)于x軸對稱的兩個圖形上點的坐標特征:(x , y)——(x , - y)3、關(guān)于原點對稱的兩個圖形上點的坐標特征:(x , y)——(- x , -y)第五環(huán)節(jié)布置作業(yè)習題3.5 1,2,3四、 教學反思通過“坐標與軸對稱”,經(jīng)歷圖形坐標變化與圖形的軸對稱之間的關(guān)系的探索過程, 掌握空間與圖形的基礎知識和基本技能,豐富對現(xiàn)實空間及圖形的認識,建立初步的空間觀念,發(fā)展形象思維,激發(fā)學生對數(shù)學學習的好奇心與求知欲,學生能積極參與數(shù)學學習活動;積極交流合作,體驗數(shù)學活動充滿著探索與創(chuàng)造。教學中務必給學生創(chuàng)造自主學習與合作交流的機會,留給學生充足的動手機會和思考空間,教師不要急于下結(jié)論。事先一定要準備好坐標紙等,提高課堂效率。
1. 完成文本主要信息填空(斜體字部分設空):As a witness to farmers’ poor harvests and even a severe shortage of food, Yuan Longping was determined to devote his life to tackling this crisis. After graduation, he realized that what farmers needed most was to boost yields in the fields. Yuan was convinced that the answer lay in the creation of hybrid rice, one characteristic of which is that it usually achieve higher output than conventional crops. However, it was no easy job. The first difficulty he needed to overcome was scientists’ general assumption that this could not be done. Through trial and error, Yuan managed to generate this incredible crop. It is estimated that about 60 percent of domestic rice consumption in China was comprised of crops generated from Yuan’s hybrid strains. His innovation has enabled Chinese farmers to considerably expand their output and helped feed the world. Unwilling to retire early to a life of leisure and unconcerned about celebrity or fortune, Yuan continues to turn one vision after another into realities.2. 模仿寫作:Do some research via the Internet and introduce another agricultural scientist, Chen Risheng(陳日勝), using the structure, expressions and writing techniques you have learnt from the text “A Pioneer for All People”.【設計意圖】任務1是對文本內(nèi)容和詞匯學習成效的檢測。任務2借助文本中學到的詞匯和寫作手法仿寫另一位科學家,提升學生遷移運用詞匯、文體結(jié)構(gòu)和寫作方法的能力。
8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有禮貌, 你被攻擊的可能性就越小。 Step 8 Writing---the articleHow to stay safe in the online chat roomToday I thought I’d blog about a question that has been asked many times--- how do you stay safe online and avoid bad experiences in the online chat room ? I’m not an expert, but many years as a blogger have taught me a thing or two.First of all, there’s the golden rule of the Internet: keep out of what makes you uneasy. Don’t post comments or click on anything. Second, protect your privacy. Don’t give out too much private information like your address, phone numbers, the ID numbers, etc. Third, be polite. If you are polite to others on the Internet, you won’t be attacked in normal situation. Finally, don’t believe in others easily and never meet someone you met online alone. It is very dangerous.Have you had any bad experiences online, or do you have some good advice for staying safe? Post your comments below!Step 9 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1. Does the writer tell the reader what he/she know about the topic ?2. Are the tips and suggestions well organised ?3. Has the writer defined the new words ?4. Does the author include examples, comparison, or explanations ?5. Does the writer end by asking readers to leave comments and/or suggestions ?6. Can you find any grammar or spelling mistakes.Step 6 HomeworkPut up your revised draft in the classroom or read it to your class.
本活動旨在落實課時目標3。 Think about the following questions and talk about your own attitude in pairs.Q1: As for this topic,what impresses you the most in the passage?Q2: What do you think of the future of China’s further exploration in sea? Are you in favor of the further exploration?Why or why not? 【設計意圖】該活動是一個完全開放性的活動,每個學生都會有不同的答案。運用遷移所學,自由口頭表達自己對海洋探索的態(tài)度。對于中國海洋探索的未來,每個人的想法是不一樣的,有樂觀,有擔憂,有認為值得投入,也有認為不值得付出太大代價,這里給學生自由表達的空間只要學會有支撐自己觀點的事實就可以了,進一步培養(yǎng)學生批判性思維和正確的價值觀。 Assignment: 此任務旨在遷移一、二課時所學,培養(yǎng)學生辯證分析問題的能力。 Write about your idea of the future of China’s sea exploration. And add your attitude towards the effort China have made in sea exploration. You’re expected to use the language and the writing technique learnt in the passage.
【教材分析】本節(jié)課是高中英語第一冊的最后一個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;生詞量增大,而且在語境中理解詞匯的要求提高。面對這些,教師的難度和高度也要有所提升,通過探討說明順序,了解背景知識等幫助他們找到說明文閱讀的方法?!窘虒W目標與核心素養(yǎng)】1. 文化意識目標新課程中指出,文化意識是對中外文化的理解和對優(yōu)秀文化的認同。文化意識的的培養(yǎng)有助于學生增加國家認同和家國情懷,成為有文明素養(yǎng)和社會責任感的人。我們這個單元很好體現(xiàn)了這一點,通過了解漢字書寫的體系和發(fā)展,學生可以有一種文化自豪感,同時也能夠幫助學生深入挖掘這篇文章,從而想到更多和中國文化相關(guān)的方面。2. 學習能力目標
Step 3: Read to sum upRead it again and sum up the problems of the three students, and then write down the advice that was given from others.Step 4: Work in pairs. List your learning problems in English and brainstorm some useful advice.Useful expressions ? I don't know how to…... Is a big difficulty for me. I cannot ...? You might try …. It's very important to…? I have no idea how/what .My biggest problem is .... ? I (also) have trouble with. My advice is …. This worked for me.? l cannot understand the teachers’ English in class.Step 5 Homework:為提高我校學生的英語口語水平,我們將舉辦英語演講比賽(English- speaking contest),請你根據(jù)下面的信息,以學生會(the Students‘ Union)的名義寫一份海報,歡迎全校同學參加,屆時特邀本校美籍教師史密斯先生頒獎。? 報名時間 9月30日以前(報名:signup)? 報名地點 學生會辦公室? 比賽時間 10月9日晚7:00~9:00? 比賽地點 學校大會議室? 獎勵 前8名
This teaching period mainly deals with grammar “The Present Perfect Passive Voice.” To begin with, teachers should lead students to revise what they have learned about the Present Perfect Passive Voice. And then, teachers move on to stress more special cases concerning this grammar。This period carries considerable significance to the cultivation of students’ writing competence and lays a solid foundation for the basic appreciation of language beauty. The teacher is expected to enable students to master this period thoroughly and consolidate the knowledge by doing some exercises. 1. Guide students to review the basic usages of the Present Perfect Passive Voice2. Lead students to learn to use some special cases concerning the Present Perfect Passive Voice flexibly.2. Enable students to use the basic phrases structures flexibly.3. Strengthen students’ great interest in grammar learning.1. Help students to appreciate the function of the Present Perfect Passive Voice in a sentence2. Instruct students to write essays using the proper the Present Perfect Passive Voice.觀察下列句子特點,總結(jié)共同點。1.(教材P28)Much has been written about the wonders of the World Wide Web.2.(教材P28)But the Internet has done much more for people than simply make life more convenient.3.(教材P28)Many people have been helped by the club.4.(教材P28)She no longer feels lonely, and her company has become quite successful.5.(教材P32)Today I thought I’d blog about a question that has been asked many times—how do you stay safe online and avoid bad experiences on the Internet?
This unit is about the Internet, which has a great influence to our humans and our lives. During the Listening & Speaking & Talking and Reading and Thinking section, the influence in examples has been shown. Thus, use the Present Perfect Tense is appropriate. However, in order to show the justice or weaken the doer of the behavior/action, it’s better to use the Present Perfect Passive Voice than the Present Perfect Tense. Besides, having learned to use the Present Perfect Passive Voice, students can beautify their language in their writing. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. Step 1 Observe the following sentences, then change the sentences into passive voice.He has been selected to take part in the sports meeting.(肯定句)他已被挑選出來參加運動會。The ink has not been removed from his overcoat.(否定句)墨跡還沒有從他外套上去掉。
From the pictures in the text and the title--- choose the best app, we can know that this part is about how to save money by using apps.Step 2 While-listening1. Laura and Xiao Bo are talking about apps. Listen to their conversation and find out what apps they want.Xiao Bo is looking for a(n) exercise app to help him get in shape.Laura would like an app for getting rich and another that will make her grades better.2. Listen again. Are the sentences true T or false F?1). Both of Xiao Bo's apps keep track of the steps he takes._____2). Xiao Bo's second app can help him make a fitness plan._____3). Laura needs an app that will help her get discounts.______4). Laura needs an app that will add money to her bank account._______F T F T3. Listen once more and tick the sentence you hear. Underline the words used to express predictions, guesses, and beliefs.Predictions, Guesses, and Beliefs________It might help me walk more.________My guess is that it wouldn't work.________I imagine this app would help me get fit faster________I suppose that would be good.________I guess you could save a little with this app.________I suppose there would be some problems, too.________I believe this app could help me get thinner.
Listening and Speaking introduces the topic of “ask about online habits”. Many middle school students have been surfing the Internet for many years, but what they do with the Internet and how much time they spend every day may not be very clear to themselves, nor to other students. This section allows students to investigate their peers' Internet use, which is conducive to their mutual understanding and understanding of the Internet. It can also help them reflect on their own online behavior, learn from other people's good online habits, and get rid of their bad online behavior.The listening text of this section is an investigation interview. The investigators interview specific groups with the same questions to obtain information, so as to understand their views, practices or attitudes on this issue. There are two specific questions: “how much time do you spend online every day? What do you usually do online?”. The answers of the three respondents provide rich and different information, and achieve the purpose of the investigators. The oral discourse structure of survey interviews generally includes greeting and explaining the purpose of the interview, presenting the interview questions and the respondents' answers. Listening and Talking introduces the theme of “choosing the right application ". Listening text is a conversation between Laura and Xiao Bo. In this part of listening, “oink”; “piggy bank” may cause the students' hearing comprehension limitation. Oink refers to sound word and pig's sound. So, add some oink to my piggy bank is often used to describe "making a little money".1. Guide students to understand the content of listening texts in terms of listening for definitions.2. Cultivate students' ability to define words and understand an investigation interview.
Q5:What's Jan's next goal?Her next goal is to start a charity website to raise money for children in poor countries.Q6:What can we learn from her experiences?We learn that when we go through tough times, we can find help and support from other people online. We learn that we can feel less lonelyStep 5: While reading---rethinkingQ1: What is Jan’s attitude to the Internet ?Thankful/Grateful, because it has changed her and her life.Q2: What writing skills is used in the article ?Examples(Jan’s example, the 59-year-old man’s and the 61-year-old woman’s example)Q3: Can you get the main idea of the article ?The Internet has changed Jan’s life/Jan’s life has been changed by the Internet.Step 6 Post reading---Retell the storyMuch has been written about the wonders of the World Wide Web. There are countless articles (1)telling(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)more(much) for people than simply make life more convenient. People’s lives (3) have been changed(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)stuck(stick) at home with only her computer to keep (5)her(she) company. She joined an online group (6)where she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)benefits(benefit). She was so inspired (8)that she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)for children in poor countries. Jan’s life has been (10)greatly(great) improved by the Internet.
Paragraph 3. Jan decided to start an IT club to teach old people how to use computers and the Internet. Paragraph 4. Jan has started taking online classes to learn more about how to use the Internet to make society better. Paragraph 5. Jan’s life has been greatly improved by the Internet. Step 5: Critical thinking:(1)How do you arrange your time spent on study and the Internet? Is it reasonable? I usually surf the Internet using my mobile phone for only an hour after class, and it is reasonable for me.(2)What are your online activities? Are they safe? I chat with my friends, read news and play games. I never give away my private information so I think they are safe.Step 4: summary Much has been written about the wonders of the World Wide Web. There are countless articles (1)______(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)_____(much) for people than simply make life more convenient. People’s lives (3) _________________(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)_____(stick) at home with only her computer to keep (5)___(she) company. She joined an online group (6)______ she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)_______(benefit). She was so inspired (8)____ she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)___ children in poor countries. Jan’s life has been (10)______(great) improved by the Internet. Step 5 Homework:Review what we have learned and find out the key language points in the text.
⑦identity theft 身份盜竊⑧chat room 聊天室⑨draft your blog post 起草博客帖子⑩post embarrassing photos 張貼尷尬照片 【話題句式】 1. How do you stay safe online and avoid bad experiences on the Internet? 你如何在網(wǎng)上保持安全, 避免在網(wǎng)上的不良經(jīng)歷? 2. I’m not an expert, but many years as a blogger have taught me a thing or two. 我不是專家, 但作為一個博主, 我已經(jīng)學了好幾年了。 3. If you see or read something that makes you feel uncomfortable, leave the site immediately. 如果你看到或讀到一些讓你覺得不舒服的東西, 立即離開這個網(wǎng)站。4. Don’t give out your address or phone number. 別告訴別人你的地址或電話號碼。 5. Identity theft is a common and serious problem. 身份盜竊是一個常見而嚴重的問題。6. Being online is no excuse for being rude, and you don’t want to become a target for a troll or cyberbully. 上網(wǎng)并不是無禮的借口, 你也不想成為發(fā)挑釁帖子的人或網(wǎng)絡惡霸的目標。 7. Trolls often use several false names so that they can stay on a site. 發(fā)挑釁帖子的人經(jīng)常使用幾個假名, 這樣他們就可以留在一個網(wǎng)站上。8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有禮貌, 你被攻擊的可能性就越小。
【設計意圖】以“新科技是一把雙刃劍”為主題開展討論活動。這個話題比較大,所以給了一定的限制,首先需要以智能家居為例來闡述科技發(fā)展對未來生活產(chǎn)生的影響,然后列舉其優(yōu)點和缺點,最后就以上現(xiàn)象發(fā)表自己的觀點。這個活動是對整個文本的創(chuàng)意性總結(jié)與意義的升華,留給學生一定的想象空間,學生借此機會可以運用文本內(nèi)容和語言表達自己對科技發(fā)展的看法和態(tài)度。Assignments:1. Finish Exercise 4 on Page 15 of the textbook.A smart home is one that integrated computers into the structure of the building itself. In this way, many of the things that we now do ourselves become automatic. For example, the smart home could control the air conditioning and lights so that you would no longer have to turn switches on and off, and so that your home would be more energy-efficient. The smart home could also monitor itself to make sure that everything is working as it should, and send you warnings if there is a problem. Such smart homes could even be programmed to detect your health problems, and then give you reasonable advice as to the food you should eat or if you should see a doctor. So, in a sense, smart homes will lead us to living smarter lives.2.Create a smart function for your home, and share your creation in the next period.
課程名稱數(shù)學授課教師趙娜授課章節(jié)第四章第四節(jié)對數(shù)授課時間2015—2016年第一學期 第2周第1次課授課班級15級一班,15級二班,15級三班,15級四班,15級五班,15級六班,15級七班教學目的⑴ 理解對數(shù)的概念,理解常用對數(shù)和自然對數(shù)的概念; ⑵ 掌握利用計算器求對數(shù)值的方法; ⑶了解積、商、冪的對數(shù).教學重點 和難點【教學重點】 指數(shù)式與對數(shù)式的關(guān)系. 【教學難點】 對數(shù)的概念.復習提問(1) 指數(shù)函數(shù)圖像的性質(zhì)本課小結(jié)⑴ 理解對數(shù)的概念,理解常用對數(shù)和自然對數(shù)的概念; ⑵ 掌握利用計算器求對數(shù)值的方法; ⑶了解積、商、冪的對數(shù).布置作業(yè)練習冊p7頁1-4題檢查簽字 檢查日期
【教學目標】1、掌握區(qū)間的概念;2、用區(qū)間表示相關(guān)的集合;3、通過數(shù)形結(jié)合的學習過程,培養(yǎng)學生的觀察能力和數(shù)學思維能力。【教學重點】區(qū)間的概念【教學難點】 區(qū)間端點的取舍【教學設計】 1、實例引入知識,提升學生的求知欲;2、數(shù)形結(jié)合,提升認識;3、通過知識的鞏固與練習,培養(yǎng)學生的思維能力【課時安排】 1課時(45分鐘)【教學過程】² 創(chuàng)設情景 興趣導入問題:資料顯示:隨著科學技術(shù)的發(fā)展,列車運行速度不斷提高.運行時速達200公里以上的旅客列車稱為新時速旅客列車.在北京與天津兩個直轄市之間運行的,設計運行時速達350公里的京津城際列車呈現(xiàn)出超越世界的“中國速度”,使得新時速旅客列車的運行速度值界定在200公里/小時與350 公里/小時之間.如何表示列車的運行速度的范圍??解決:不等式:200<v<350;集合:;數(shù)軸:位于200與3之間的一段不包括端點的線段;還有其他簡便方法嗎?
人教版《新目標英語》七年級上冊第十一單元中心話題是通過對日常生活作息時間的談論,讓學生學會時間的表達法。主要學習用what time和when來引導的特殊疑問句詢問時間的標準用法,還有不同時間段的表達法以及表示頻率副詞的學習。通過本單元的學習使學生學會不同時間段的表達法,學會用頻率副詞談論自己日常生活習慣。通過對不同時間段的系統(tǒng) 學習和理解,學會調(diào)整和安排自己的學習和課外活動時間,能夠運用所學知識對某一活動進行合理的安排;使學生深刻理解時間的重要性, 學會珍惜時間,并逐步養(yǎng)成良好的作息習慣。我現(xiàn)在說的這節(jié)課是本單元的第一課時。時間的重要性是眾所周知的,生活中我們經(jīng)常談論某人在何時做了某事,可是 怎樣才能用正確的時間表達方法來描述呢?在學生學過了一些數(shù)詞和日常行為動作術(shù)語的基礎上,教材在本單元的開篇通過談論日常作息時間安排的對話來讓學生認知時間,表達時間,適時而又合理。
難點:1.學會談論并描述使用某種交通工具到達某地。2.要求學生掌握好助動詞do在不同人稱特別是第三人稱單數(shù)后的變化。通過合作學習將聽說讀寫有機地結(jié)合起來,切實做到任務密集度適中,節(jié)奏合理,環(huán)節(jié)與環(huán)節(jié)之間過渡自然,讓學生一步步登上高峰突破難點。五.說教學策略:1.教學手段分析:針對低起點的學生,在學習過程中通過“兵交兵,小組訓練,鼓勵性評價”等扶路措施,提高低起點學生的語言技能。針對高起點的學生要拔高學習目標,同時又能較好地運用到實踐中去。2.教學方法分析:本課主要以“任務型教學法”并輔助與情境交際法完成任務的。在教學活動中采用任務型教學法讓學生的學習活動具有明確的目標,并構(gòu)成有梯度的連續(xù)活動。學生從注重語言本身轉(zhuǎn)變?yōu)樽⒅卣Z言習得,從而獲得語言運用的能力。我還采用情境交際法給學生足夠的聽,說的機會,聯(lián)系實際,創(chuàng)設情景,在交際中學英語。
1. 教學重點(1)新單詞及目標語言的掌握。(2)聽、說、讀、寫的綜合訓練。(3)對對合作及小組合作練習口語的訓練。2. 教學難點(1)when所引導的特殊疑問句。(2)詢問生日與出生年月日的區(qū)別。When is your birthday? (一般現(xiàn)在時)When were you born?(一般過去時) (3)表達年月日時所用的不同介詞:in+年/月;on+日期二、教學方法。由淺入深,由易到難,由已知到未知,從學生熟悉的運動明星、電影明星甚至是歌手入手,調(diào)動他們的學習積極性,讓他們在心情愉快、興趣濃厚的氛圍中展開一系列聽說讀寫的訓練,主動地投入到學習中去,自然地掌握本單元的重點、難點;循序漸進地深化教學內(nèi)容,同時以訓練學生聽說為主,展開以老師為主導,以學生為主體的師生雙邊互動活動。三、教學手段。利用名人圖片來輔助新的語言知識的鞏固和訓練;采用多媒體教學,并把聽力內(nèi)容錄到電腦中,鍛煉了學生的視聽能力,提高了教學效果。
教學反思:這是學生升入初三的第一節(jié)課,學生學習熱情很高,通過這一課時的學習,學生掌握了語言目標中所要求的知識重點、難點和語言技能,如by dong, practicing doing ,too……to,現(xiàn)在完成時態(tài),動名詞短語做主語及提建議的幾種方式,但是有部分學生由于基礎較差,還需要從培養(yǎng)學生學習興趣入手,真正實現(xiàn)教育面向全體學生。在教學中采取的具體辦法由:個別輔導,互助學習,留不同層次夫人作業(yè),爭取讓每一位學生都吃飽而不掉隊。How do you study for a test?Two periodsSection BGoals●To listen about learning English●To talk about learning English●To read about learning EnglishProceduresWarming up by reading to the recordingHello, everyone. To begin with, let’s listen and read to the recording of the text HOW DO YOU LEARN BEST? That is, read aloud to the tape, as fast as the tape goes, as clearly as the native reader reads. OK? Here we go!My cat speaks English. Sometimes my cat comes to me and tells me that she is hungry. Or that her leg hurts. How does my cat tell me these things? I don't speak pussy-cat language.1a Reading and checkingLearning English can be both easy and difficult. What things are easy for you? And what things are difficult for you? Now turn to page 5, read the list on the top and check √the statements that are true for you.1b Making a listYou have read and checked the statements true for you. Now think and make a list of other things difficult for you, too.