英语必修2人教版教案：(Unit3 Computers--Period2 Learning about Language)
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Task 3
T：Please finish Ex.3.Look at the sentences on Page 20.Tick the right word.Then some of you will be asked to read the sentences one by one.
T：Congratulations!You’ve done very well.Now try to do the same to your partners，OK!
Step 2 Words and Expressions
Task 1
T：Please turn to Page 19 and finish Discovering Useful Words and Expressions.At first，look at Ex.1.From the reading passage，find the words and expressions with the following meanings.Now， ten students will be asked to give the words.Who can?Volunteers!
S1：Let me try.In 1642，a calculating machine was used in France.Then in 1922，the Analytical Machine was made by Charles Babbage.It could follow instructions from cards with holes.In 1936，Alan Turing，the real father of computers，wro te a book to describe how computers could be made to work and built a“universal machine”to solve any mathematical ter，people discovered the computer had“artificial intelligence”.In the 1960s，the computer got his new transistors.Its size was totally changes at that time.And in the early 1960s，the first family of computers were connected to each other.In 1970s，computers have brought into people’s homes.Now computers have been used by billions of people to deal with information and communicate with each other around the world by the Internet.
Teaching Important Point：
The use of the present perfect passive voice.
Teaching Difficult Points：
How to master the usages of some important words and phrases and the Present Perfect Passive Voice.
Check the answers together.
Task 2.
T：Well done.Now please look at Ex 2.and complete the passage with some of the words above.Pay attention to the use and the forms of those words.
Step 1 Revision
T：Boys and girls，in last period we learned something about the history and development of computers.Now who would like to retell the text with the help of these figures the students to learn to use some useful words and expressions.
2.Enabl e the students to learn how to use the present perfect passive voice.
Period 2 Learning about Language
The General Idea of This Period：
This period includes revision of the text、learning about language.From this period the students will learn how to use some of the key words and expressions in the text and do some exercises for consolidation，and learn how to use the Present Perfect Passive Voice.
Teaching Methods：
1.Task-based learning.
2.Cooperative learning.
3.Explanation and practice.
Teaching Aids：
1.A tape recorder.
2.A multimedia.
Teaching Procedures：
英语必修2人教版教案：Unit 3 Computers 新人教版必修2
新课标人教版 Unit 3 Computers 计算机核心词汇1．Where can I____________(下载)the exercises from the Internet?2．More problems like those at the nuclear power plant are certain to____________(出现)．3．During the winter holidays，I____________(辅导)some students for English exams.4. They achieved their____________(目标)of increasing sales by five percent. 5．It is such a hard problem that it is impossible for me to____________(解决)．6．Money does not always bring____________(幸福)．7．These changes are due to an increase in the carbon dioxide in the atmosphere since the beginning of the Industrial____________(革命)．8．There is another kind of beauty that has nothing to do with____________(外貌)，but comes from the heart.9．It is just her childhood experiences that affect her____________(性格)and later life.10．After the president made an official announcement，he expressed his____________opinion.____________speaking，I agreed with his opinion.(personal) 11．I would like to____________for the job advertised in the newspaper，so I have sent my____________before July 20,2010.(apply)12．Can you say that dolphins are much more____________than other animals？Well，they are animals of high____________and they can communicate.(intelligent)1.download2.arise3.coached4.goal5.solve6.happiness7.Revolution8.appearance9.character10.personal；Personally11.apply；application 12.intelligent；intelligence高频短语1．________________ 从……时起2．________________ 结果3．________________ 如此……以致于4．________________ 在某种程度上5．________________ 在……的帮助下6．________________ 处理；安排；对付7．________________ 看守；监视8．________________ 共有；共用9．________________ 弥补10．________________ 毕竟1.from...on2.as a result3.so...that4.in a way5.with the help of6.deal with7.watch over8.in common9.make up 10.after all重点句式1．____________，I was made smaller.随着时间的流逝，我被做得更小了。
人教版高中英语必修2《Unit3Computers》教案
人教版高中英语必修2《Unit3Computers》教案人教版高中英语必修2《Unit 3 Computers》教案【一】教学准备教学目标1. To practise listening comprehension.2.To practise making decisions and reasoning教学重难点1. To practise listening comprehension.2.To practise making decisions and reasoning教学工具课件教学过程Step1. revision1. check the homework exercises.1). It has been reported that children will be offered free education.It has been reported that free education will be offered to children.2). It has been said that we will be offered the latest computer science course book.It has been planned that the latest computer science course book will be offered to us.3). I have been told by Peter that I will be lent his notebook computer for a week.I have been told by Peter that his notebook computer will be lent to me for a week.2. Question: What can computers be used as?Step2. Lead-inAs we know, science and technology is developing very fastand computers have become smaller and smaller. They have been used in many fields. So, the 21st century is the century of information technology What does it mean? Does information technology/ IT only mean things like computers? Of cause not. Actually, it means more than computers. Computers are just one kind of IT. What else do you know is part of IT?(TV, radio, CD-ROM, DVD, books……)Step3. Listening (SB)1. Pre-listening: What are the changes brought by different forms of IT ?What are the advantages and disadvantages of them ?2. While-listening:Go through the chart and make sure the students look at the chart before they listen to the tape. (This is to sharpen their attention and listen for the answers. This will also help them get the gist of the text.) Then Listen to the tape and finish filling in the chart. (If necessary, play the tape for several times.) Say: After listening to their talk, we know all kinds of IT have both disadvantages and advantages.Let’s check the answers together.Type of IT Advantages DisadvantagesTV You can both listen and watch. You cannot write to friends.Web You can find information. It is very expensive.Radio You can listen to English. You cannot watch a film.Book You can get information. Sometimes it is out of date.3. Post-listening:1) (pair work): decide which type of IT is best for you to use right now. Make your choice and give your reasons by using the following expressions.I think that….In my opinion, ….I believe that….I agree because….I disagree because….I’ve decided that….2) (group work): Discussion :Computers are useful and have brought us lots of good things, but they also cause bad effects. What attitude should we have towards the computer? (Make good use of it but never get trapped by it.)Step4. Speaking1. Pre-speakingSay: From what we have learn, we should admit that computers and the web have a great influence on the school education as well as people’s life. It has come into people’s everyday life and many families hold computers in their homes. Now there is a task for you.2. While-speaking1) Situation: You have been asked by your parents to help choose computers for your home. You and your friend have looked at several computers. Talk about the special things each computer can do. Make a decision about which kind of computer to buy and explain why.Information input: Show students some pictures of different computers (desktop computer & laptop computer & …) Language input: Useful expressions (Repeat it to strengthen students’ ability of use it.)Supporting an opinion Challenging an opinionI think that … , because … Perhaps, but what if / about …?First, … Have you thought about …?One reason is that … What makes you think that …?I think it is better because… I don’t like it because….(Pair work )Use the expressions to support your opinion or challenging other’s opinions.2) Oral report: (individual work )Do an oral report to your father and start your report like this: I looked at many different computers. The one I have chosen is the PEP personal computer. One of the main reasons is that it is suitable for homes. I found that…3. Post-speakingConclusion—What useful expression do we use to make a decision and reason?(In this way, they can review and use the words and phrases again.)Step6 Pre-writingSay: Imagine what problems and delights this android might have to deal with while it is serving you. Try yourself in someone else’s shoes is an important way of understanding how other people feel.Then discuss: You are an android. You work for a family with one child who is very spoiled. The parents want you to do everything for them. The parents are nice, but they often ask you to watch over their child. How do you feel? What would you do if the child asked you to do his/her homework for him/her? Would you ever tell the chi ld “no”?Step7 WritingSay: Write a passage about the result of your discussion! It should contain:What do you have to do?What is the child like?What is the parents’ requirement of the child?What do the parents want you to do?What does the child want you to do?Then what will you do? How do you feel?Sample writing:Hello everybody, my name is Liu Yan.I am a 321 model android.I work for the Li family. Mr and Mrs Li work very hard too.Mr Li is an architect and designs great tall apartment blocks.Mrs Li is a doctor and has to look after many patients.I remember all the plans for Mr Li's projects and can tell Mrs Li which drugs are the best to give any particular patient. And I also look after their library. I store all the books that they borrow from their school or friends in my brain.Of course my brain is as large as a mountain, so work like that is no trouble to me.I really eat books just like people eat food.The Lis have a child who is very spoiled. He needs me to remember all his school textbooks so that I can do his homework for him.He just gives me the information on the subject, what has to be done and the page numbers and I get on with it while he enjoys himself with his friends.Sometimes I don't think it is right to do his homework for him — it's somewhat cheating. However, his parents are very concerned at the pressure of work in school these days.The child has too much homework to do. They like him to go to the key school but they also want him to be able to have hobbies, learn to swim and keep fit! Poor child!So they consider me the most important person in the family after themselves.I am always introduced to their friends and play with visiting children.I am the perfect family academic aid and, although I was not cheap to buy, Mr Li says I was worth every yuan!Step8 AssessmentGet the students to assess their writing ability according to the following the questions:1. Is your composition well developed?2. Are your ideas well organized to the point?3. Do you have a good choice of words and idioms in your writing?4. Do you get a good mastery of complex structures of language?5. What kind of mistakes have you made in your writing?Step9: HomeworkWrite about your discussion. You may begin like this:Hello, everyone. My name is ___. I’m 321 m odel android. I work for the Li family….课后小结学了这节课，你有什么收获?课后习题完成课后习题一、二。
Unit 3 Computers教学设计 ( 人教高中英语必修2)
Unit 3 Computers本堂课包括Warming up 和 Reading 两部分。
他们是语言知识和文化意识的输入过程；是语言技能、情感态度和学习策略的培养过程，也是语言输出过程。
在整个教学过程中，它是培养学生阅读能力的主要过程，教学重点是阅读技能的培养、交际能力及情感态度的提升。
Warming up 部分根据每个人对电脑的看法不同让学生就“Do you like computer?”进行小组探究和讨论，从自身实际出发谈论自己的看法，有助于激发学生对于整个单元的学习兴趣。
Reading 部分（Computers ）主要讲述的是电脑的发展史，通过一系列问题的设置让学生能够在全面理解文章的基础上提高信息处理、加工和学习的能力。
Knowledge objectives:掌握以下词语和句型：Calculate, sum, solve, simplify, artificial, intelligence, revolution, reality, totally, application, finance, in common, over time, as a result, from···on, so···that. Ability objectives:训练学生一定的阅读技巧，使他们掌握一些有效的学习策略，从而提高阅读速度和篇章理解的准确性，并养成一定的自主学习能力；培养学生快速阅读的能力、捕捉信息的能力及运用语言进行交际的能力。
Emotion objectives:通过对“computer”的学习，启发学生思考电脑给我们带来的影响，从而以一种正确的方式利用电脑和网络资源；另外通过电脑的发展历程让学生意识到科技对生活的影响。
1. 教学重点：1.了解计算机的发展过程，进一步认识计算机的演变以及对人类的影响。
2.训练学生的阅读技巧，提高学生阅读速度和理解能力。
(完整版)人教版_英语_必修二第三单元教学案2
Unit 3 Computers单元学习目标:单元背诵:1.And my memory became so large that even I couldn't believe it！2.Anyhow, my goal is to provide humans with a life of high quality.3.Today an increasing number of people have realized that law education is of great importance.4. The two cultures have a lot in common.5.As time went by,I gradually adapted myself to the school life .6.With winter coming ,it is getting colder and colder.7. As a result,I have made steady progress in my study.8. So precious is the time that we can't waste it.9.I would appreciate it if you can give me some good advice .10.what has impressed us most is her devotion to work.单元重难点:重点句型:1．As time went by, I was made smaller.2．My memory became so large that even I cou ldn’t believe it!3．I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.重点语法：现在完成时的被动语态Period oneReadingWHO AM I?Over time I have been changed quite a lot. I began as a calculating machine in France in 1642. Although I was young I could simplify difficult sums. I developed very slowly and it took nearlytwo hundred years before I was built as an analytical machine by Charles Babbage. After I was programmed by an operator who used cards with holes, I could "think" logically and produce an answer quicker than any person. At that time it was considered a technological revolution and the start of my "artificial intelligence". In 1936 my real father, Alan Turing, wrote a book about how I could be made to work as a "universal machine" to solve any difficult mathematical problem. From then on, I grew rapidly both in size and in brainpower. By the 1940s I had grown as large as a room, and I wondered if I would grow any larger. However, this reality also worried my designers. As time went by, I was made smaller. First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s.These changes only became possible as my memory improved. First it was stored in tubes, then on transistors and later on very small chips. As a result I totally changed my shape. As I have grown older I have also grown smaller. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told! And my memory became so large that even I couldn't believe it! But I was always so lonely standing there by myself, until in the early 1960s they gave me a family connected by a network. I was able to share my knowledge with others through the World Wide Web.Since the 1970s many new applications have been found for me. I have become very important in communication, finance and trade. I have also been put into robots and used to make mobile phones as well as help with medical operations. I have even been put into space rockets and sent to explore the Moon and Mars. Anyhow, my goal is to provide humans with a life of high quality. I am now truly filled with happiness that I am a devoted friend and helper of the human race!一级阅读目标:Ⅰ. Look up the words in the dictionary and then match them with the pictures.A. host computerB. screenC. keyboardD.mouseE.monitor D. speakerⅡ. Guessing game: Do you know who I am?1.I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they don’t like me now.2.I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems.3.I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicating through the Internet. However, I am not a PC, becauseI’m small enough for you to take me with you.4. I can be used as a laptop. However, I am not a laptop, becauseI’m small enough for you to hold me in your hand.III. Skimming1.Who is the speaker in this story?2. What’s the main id ea of the text?A. The computer wants to find “who he is”.B. The function of the computer.C. The computer becomes popular around the world.D. The changes and the applications of the computer.二级阅读目标:Detail-readingⅠ.Choose the best answer according to the passage.1.Who was the first person to make the earliest computer?A. Alan TuringB. Charles BabbageC. Charles TuringD.Alan Babbage2. When was the computer biggest?A. In 1642.B. In 1936.C. In the 1940s.D. In the 1970s.3. According to the text, the computer has grown smaller mainly because .A. it use good materialB.it was too large in the pastC.its memory has improved a lotD.there is less room on the beath4.which of the following is in the right order of time?a.The computer was connected with other computers.b.Alan Turing wrote a book about the computer.c. The computer has been sent to explore the Moon and Mars.d.The computer began to simplify difficult sums.A. abcd. B, bcad. C, dacb. D.dbacⅡ.Fill in the form according to the passage.三级阅读目标I .SummaryFill in the blanks with proper words according to the passage.I began as a ___________ machine in 1642 in France. About 200 years later I was built as an _________ machine. Then in 1936 Alan Turing wrote a book and built a “ _________ machine”.As time _____ _____, I was made smaller. These changes became possible because my memory improved. In the 1960s they gave me a family connected by a _________ . Now people call it the World Wide Web. I have been used in _________ and homes since the 1970s. So I became a PC. I’m happy to become a _________friend and helper o f the_________ _________.Ⅱ. Discuss in groups the advantages and dis advantages of the computer.Period two vocabulary课前自测·预习（homework）I.Please translate the following sentences into Chinese and pay attention to the words in black.1.With the development of technology，our life is more convenient and happier than before.2.English is referred to as a universal language.3.The industrial revolution took place in England first.4. Though Einstein is ordinary-looking, he is highly intelligent.5.It may snow, but anyhow I will go to the town.6.Personally, I think he is a very good man, but you may not agree.7.You’d better set a goal before you begin to learn English.8.The sum of 5 and 3 is 8.9.The experts are exploring every part of the island and want to find something unusual.10.I was fitted an artificial tooth by the dentist.II. Finish the following phrases1.in common ___________2.go by ___________3.as a result ___________4.from…on ___________5.so…that…___________6. ___________与…分享…7. ___________和…一样；和；也8. ___________提供某人某物9. ___________充满…10.______________总计III.word formation (try to finish the following words )1. ____________ vt.计算→calculator n. 计算器2.universe n. 宇宙→___________ adj.普遍的；通用的；宇宙的→universally adv.普遍地3.simple adj. 简单的→__________ vt.简化4. ___________ adj.合逻辑的；合情理的→logically adv.逻辑上；合逻辑地；有条理地5. ___________ n. 工艺；科技；技术→ _________ adj.科技的6. ____________ n. 智力；聪明；智能→___________adj.智能的；聪明的7. ___________ n. 真实；事实；现实→ real adj.真实的，真的8. ___________ adj. 私人的；个人的；亲自的→____________ adv.就个人而言；亲自9. ___________adj. 总的；整个的→___________ n. 总数；合计→__________ adv.完全地；整个地10. solve vt.解决；解答→____________n．解答IV 选词填空1.There were about 40 people _____.2.As time _________, his mother’s hair turned grey.3.He was ill. _________, he didn’t go to school.4.She was _____excited _____she couldn’t go to sleep.5.Great changes took place in China _________.6. _________, he refused to talk about it.7.I _________ nothing _________with jane.8.Children should be taught to _________ their toys _______other children.V长难句分析1. In 1936my real father, Alan Turing, wrote a book about how I could be made to work as a “universal machine” to solve any difficult mathematical problem.2.By the 1940s I had grown as large as a room, and I wondered if I would grow any larger.分析：（1）本句是由_____连接的并列句，前半句是简单句，后半句是复合句。
【人教版】高中英语必修二：Unit 3 Computers 教案
Unit 3 Computers I. 单元教学目标II. 目标语言III. 教材分析与教材重组1. 教材分析本单元以computers为话题，旨在通过单元教学，综合听、说、读、写等多种形式，使学生了解计算机和信息技术的产生和发展过程及其在我们的学习、工作、娱乐等生活中所起的重要作用，激发学生对信息技术的兴趣。
1.1 Warming up提供几幅与计算机有关的图片，形象地说明了计算机的发展历程，并用三个问题引发学生对这一话题的思考，从而起到热身的作用。
1.2 Pre-reading根据文章内容预设问题，检查学生对computers相关知识及应用的了解。
学生对computers的了解可能参差不齐，这更能激发学生想获取更多知识的欲望，从而引出下面的阅读文章——WHO AM I?。
1.3 Reading中以别致的标题WHO AM I?引起学生的好奇心，使学生迫不急待地阅读这篇文章，并判断出“I”是computer，从而对文章的内容印象更深刻。
文章以第一人称的形式按时间先后顺序讲述了computers的产生、发展和现状，并用拟人化的口吻表达了computers乐于为人类服务的精神。
1.4 Comprehending 1 通过scanning的方式完成反映计算机发展历程的时间进程；2 通过填表的形式帮助学生宏观梳理文章结构，找出每个段落的主题句（论点）及具体的支持性论据；3 是读后讨论，要求学生结合自己的生活实际讨论计算机如何改变了我们的生活。
1.5 Learning about language分词汇（Discovering useful words and expressions）和语法（Discovering useful structures）两大部分。
Discovering useful words and expressions 1 根据单词释义写出相对应的词汇，考查学生对WHO AM I? 文章中的重要词汇及短语的理解。
人教版英语高中必修二Unit 3 Computers part2教案
Unit 3 Computers 教案2(WHO AM I? <PART 2>)IntroductionYou are advised to lead in by talking about IT. Then help students write a report about IT.ObjectivesTo discuss about ITTo write a report about ITTo read about androids or robotsProceduresI. Warming up by talking about ITWhat is Information technology?Information technology (IT) or information and communication technology (ICT) is the technology required for information processing. In particular the use of electronic computers and computer software to convert, store, protect, process, transmit, and retrieve information from anywhere, anytime.II. Listening and writingTurn to page 21.Look at the pictures and listen to a conversation about different kinds of information technology or IT, discuss and write down in groups the advantages and disadvantages of each kind.III. Speaking and writingSuppose you and your partner are going to help choose computers for your school. Now talk about the special things each of the computer can do and write a report to your headmaster.IV. Reading, underlining and speakingIt is said that computers could be put into androids or robots. Read the text Andy—The Android, underlining all the expressions and think of the fun you could have!Expressions from Andy—The Androidp art of a football team, once a year, get together, play a football game, be as…as…, in fat, look like…, on the football team, run fast, think like a human, shout to…, in computer language, have a good shot for a goal, get second place, win the first place, have a new kind of program, improve one’s intelligence, create a better system, play against a human team, in a way, program…with…, make up…, after all, with the help of…V. Close down by writing a letterSuppose you are an android. What would say to a spoiled child who would not do his homework? Write a letter to the boy.AndroidAn android is an artificially created being that resembles a human being.The word derives from Greek Android- ‘man, human’ and the suffix -eidesused to mean ‘of the species, kind, alike’ (from eidos ‘species’).The word droid, a robot in the Star Wars universe, is derived from this meaning. Some people maintain that, etymologically, the word android means resembling a male human and that a robot resembling a woman should logically be called a gynoid for sexist language to be avoided; however, this word is not commonly used.Unlike the terms robot (a mechanical being) and cyborg (a being that is partly organic and partly mechanical), the word android has been used in literature and other media to denote several different kinds of man-made, autonomous creations:a robot that closely resembles a humana cyborg that closely resembles a humanan artificially created, yet primarily organic, being that closely resembles a humanAlthough essentially human morphology is not the ideal form for working robots, the fascination in developing robots that can mimic it can be found historically in the assimilation of two concepts: simulacra (devices that exhibit likeness) and automata (devices that have independence).The term android was first used by the French author Mathias Villiers de lisle-Adam (1838-1889) in his work Tomorrow’s Eve, featuring a man-made human-like robot named Hadaly. As said by the officer in the story, “In this age of Realien advancement, who knows what goes on in the mind of those responsible for these mechanical dolls.”。
人教英语必修二Unit3Computers教案2
Unit 3 ComputersLearning about LanguageThe General Idea of This Period：This period includes revision of the text、learning about language.From this period the students will learn how to use some of the key words and expressions in the text and do some exercises for consolidation，and learn how to use the Present Perfect Passive Voice.Teaching Aims：1.Help the students to learn to use some useful words and expressions.2.Enable the students to learn how to use the present perfect passive voice.Teaching Important Point：The use of the present perfect passive voice.Teaching Difficult Points：How to master the usages of some important words and phrases and the Present Perfect Passive V oice.Teaching Methods：1.Task-based learning.2.Cooperative learning.3.Explanation and practice.Teaching Aids：1.A tape recorder.2.A multimedia.Teaching Procedures：Step 1 RevisionT：Boys and girls，in last period we learned something about the history and development of computers.Now who would like to retell the text with the help of these figures?S1：Let me try.In 1642，a calculating machine was used in France.Then in 1922，the Analytical Machine was made by Charles Babbage.It could follow instructions from cards with holes.In 1936，Alan Turing，the real father of computers，wrote a book to describe how computers could be made to work and built a “universal machine”to solve any mathematicalter，people discovered the computer had “artificial intelligence”.In the 1960s，the computer got his new transistors.Its size was totally changes at that time.And in the early 1960s，the first family of computers were connected to each other.In 1970s，computers have brought into people’s homes.Now computers have been used by billions of people to deal with information and communicate with each other around the world by the Internet.T：Congratulations!You’ve done very well.Now try to do the same to your partners，OK!Step 2 Words and ExpressionsTask 1T：Please turn to Page 19 and finish Discovering Useful Words and Expressions.At first，look at Ex.1.From the reading passage，find the words and expressions with the following meanings.Now，ten students will be asked to give the words.Who can?V olunteers!Check the answers together.Task 2.T：Well done.Now please look at Ex 2.and complete the passage with some of the words above.Pay attention to the use and the forms of those words.The possible answers：network so that went by totally truly simple-minded Anyway deal withTask 3T：Please finish Ex.3.Look at the sentences on Page 20.Tick the right word.Then some of you will be asked to read the sentences one by one.The possible answers：1.Life totally changed when I went to university.2.I was amazed to find that I won the competition to design a new computer.3.The competition was so exciting that we cheered all evening.4.I was so excited at the thought of meeting Yang Liwei that I could not sleep.5.Robots can be bought so cheaply that I gave one to each of my friends.6.It was so unlucky that you lost your watch at the concert.Task 4T：Please turn to Page 56 and let’s finish Using Words and Expressions.First look atEx.1.Read through the words in the right-hand box e some of them to name each part of a computer in the left-hand box.We have known about computer.But who can give us the exact names?The possible answers：1.floppy disc2.hard disc3.scanner4.modem5.CD-ROM6.monitor7.keyboard8.printerTask 5T：Now please look at plete the sentences with some of the words in the right-hand box above.You can use each word only once.First do the exercise individually，and then check your answers with your partners.And last seven students will be asked to report their answers to the class.The possible answers：1.A printer is a machine for printing text or pictures onto paper，especially once connected toa computer.2.A CD-ROM or disk is the main device that a computer uses to store information.3.A monitor is used to see your data on a computer.4.A keyboard is used to put data into a computer.5.A CPU is often used to connect computers to each other through phone lines.6.Data can also be stored in a floppy disc，which is small and can be carried easily.7.A hard disc is a disc that contains computer data.It can store a large amount of data.Step 3 Grammar—The Present PerfectPassive V oiceT：Boys and girls，now please pay attention to the following sentences in the text：1.As the years have gone by，I have been made smaller and smaller.2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet.3.I have truly been built to serve the human race since my birth.T：What verb tense is used in these sentences?And what verb voice is used in these sentences?Yes，the present perfect passive voice is used in these sentences.Can you tell us the structure of the present perfect passive voice?Quite right.The structure of the present perfect passive voice is “subject＋have/has been done＋object”.The function of present perfect passive voice is indicating verbs’the present perfect and the passive voice.OK，let’s practise the present perfect passive voice.Task 1T：Please turn to Page 20.Let’s finish Discovering useful structures.At first，look at Ex.2.According to examples，change the following sentences into the present perfect passive voice.Put the verbs into the correct form.Suggested answers：1.A new personal computer has been bought.2.Many problems have been found with our new computer.3.A PC has been built the way we wanted.4.Our computer has just joined to the Internet.5.The computer has been used every day since we bought it.6.A lot of e-mails have been written on the computer in the last year.Task 2T：Class，let’s play a game called “What has been decided”.Now，get into groups of four.Y our task is to decide what things have been decided for the class.Take turns to make the ideas as interesting and lively as you like.Y ou may finish them according to EXAMPLES on Page 21，（or finish Ex.3 after class.）Then collect the ones you all like best and be prepared to tell them to the class.Suggested answers：S1：It has been decided that those who know of the computer will be asked to say something in class.S2：It has been decided that those who didn’t clean the blackboard will be asked to come into office after school.Task 3T：Now，please turn to Page 57.Finish using structures.First，look at Ex.1 and change the following sentences according to the model，and pay attention to the passive voice form.First do the exercise individually，and then check your answers with your partners.After that we’ll check the answers in class.Step 4 HomeworkT：OK，it’s almost time for a break.Now look at Ex.2 on Page 57.Translate the following sentences into English after class.The words and expressions in brackets may help you.Step 5 The Design of the Writing on the BlackboardUnit 3 ComputersPeriod 2The Present Perfect Passive V oice1.As the years have gone by，I have been made smaller and smaller.2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet.3.I have truly been built to serve the human race since my birth.Structure：“subject+have/has been done+object”Step 6 Record after Teaching。
人教新课标高中英语必修二Unit 3 Computers教案
Unit 3 ComputersPeriod 1 ReadingI.Teaching aims1. Knowledge aims(1)Get the students to learn the useful and expressions in this part.(2)Let students to learn about history and basic knowledge of computers.2. Ability aimDevelop students' reading abilities and let them learn different reading skills.3. Emotional aimArouse students' great interest in learning computers and let them learn to use the computers in their daily lives.II.Teaching difficult and important points1.Let the students learn more about history and basic knowledge of computers.2.Get the students to learn different reading skills.III.Teaching methods1.Task-based teaching and learning2.Cooperative learning3.DiscussionIV. Teaching proceduresStep1.Lead-in and warming upShow the students some pictures of Steve Jobs and let them guess who he is. After showing the third picture, they may get the right answer. Then let them focus on the tablet in his hands and ask them what kind of computers it is.Then show them a short video about the history of Apple’s computers and ask them how many different kinds of computers they can see.At last, show them some kinds of computers.T: Do you want to know more about computers?Step2.SkimmingRead the whole passage as fast as you can.Try to get the main idea of this passage.A. The computer wants to find “who he is”.B. The function (功能) of the computer.C. The computer becomes popular around the world.D. The history and the applications of the computer.Find out the topic sentence of each paragraph and underline them.Step3. Careful-reading Para 1ScanningLet the students read this paragraph carefully and try to finish the following char.T: How could these changes become possible?Step4. Careful-reading Para 2Let the students read paragraph 2 quickly and find the answer to this question. After check the answer, give them one minute to find the five different ways of memory for computers in different periods of time.Step5. Careful-reading Para 3Since the memory of computers has been improved greatly, will them become more powerful and can be used in more fields?Now read the last paragraph and find out the new applications of computers.Step6. Further Reading1.The passage is written by_______ order?2. What is the most used rhetoric (修辞法) in this passage?A. simile（明喻）B. personification (拟人)C. metaphor (暗喻)3. In what ways have computer been changed?Ask some students to summarize. If they have any difficulty, give them some hints. Step7. Activity: Be the next Jobs!We have learned the history of computers and seen the great development of computers. What will the computers be like in the future? Do you want to design your computers as Jobs did? Now try to design your computers.For example:This is the new computer designed by our company.It is very small and transparent(透明的). You can even put it into your pocket. (Shape/color)It has a free-internet in it. You can… (Applications/functions)It only costs you … (Price)Give the students five minutes to prepare and invite some of them to show their ideas. Step8. Homework1. Try to retell the history of computers.2. Read the passage carefully and underline the difficult sentences.。
高中英语精选优秀教案人教版必修2《Unit3 Computers》Period2 Learning about Language
Period 2 Learning about LanguageThe General Idea of This Period：This period includes revision of the text、learning about language.From this period the students will learn how to use some of the key words and expressions in the text and do some exercises for consolidation，and learn how to use the Present Perfect Passive V oice.Teaching Aims：1.Help the students to learn to use some useful words and expressions.2.Enable the students to learn how to use the present perfect passive voice.Teaching Important Point：The use of the present perfect passive voice.Teaching Difficult Points：How to master the usages of some important words and phrases and the Present Perfect Passive V oice.Teaching Methods：1.Task-based learning.2.Cooperative learning.3.Explanation and practice.Teaching Aids：1.A tape recorder.2.A multimedia.Teaching Procedures：Step 1 RevisionT：Boys and girls，in last period we learned something about the history and development of computers.Now who would like to retell the text with the help of these figures?S1：Let me try.In 1642，a calculating machine was used in France.Then in 1922，the Analytical Machine was made by Charles Babbage.It could follow instructions from cards with holes.In 1936，Alan Turing，the real father of computers，wrote a book to describe how computers could be made to work and built a “universal machine”to solve any mathematical ter，people discovered the computer had “artificial intelligence”.In the 1960s，the computer got his new transistors.Its size was totally changes at that time.And in the early 1960s，the first family of computers were connected to each other.In 1970s，computers have brought into people’s homes.Now computers have been used by billions of people to deal with information and communicate with each other around the world by the Internet.T：Congratulations!You’ve done very well.Now try to do the same to your partners，OK!Step 2 Words and ExpressionsTask 1T：Please turn to Page 19 and finish Discovering Useful Words and Expressions.At first，look at Ex.1.From the reading passage，find the words and expressions with the following meanings.Now，ten students will be asked to give the words.Who can?V olunteers!Check the answers together.Task 2.T：Well done.Now please look at Ex 2.and complete the passage with some of the wordsabove.Pay attention to the use and the forms of those words.The possible answers：network so that went by totally truly simple-minded Anyway deal withTask 3T：Please finish Ex.3.Look at the sentences on Page 20.Tick the right word.Then some of you will be asked to read the sentences one by one.The possible answers：1.Life totally changed when I went to university.2.I was amazed to find that I won the competition to design a new computer.3.The competition was so exciting that we cheered all evening.4.I was so excited at the thought of meeting Yang Liwei that I could not sleep.5.Robots can be bought so cheaply that I gave one to each of my friends.6.It was so unlucky that you lost your watch at the concert.Task 4T：Please turn to Page 56 and let’s finish Using Words and Expressions.First look at Ex.1.Read through the words in the right-hand box e some of them to name each part of a computer in the left-hand box.We have known about computer.But who can give us the exact names?The possible answers：1.floppy disc2.hard disc3.scanner4.modem5.CD-ROM6.monitor7.keyboard8.printerTask 5T：Now please look at plete the sentences with some of the words in the right-hand box above.You can use each word only once.First do the exercise individually，and then check your answers with your partners.And last seven students will be asked to report their answers to the class.The possible answers：1.A printer is a machine for printing text or pictures onto paper，especially once connected to a computer.2.A CD-ROM or disk is the main device that a computer uses to store information.3.A monitor is used to see your data on a computer.4.A keyboard is used to put data into a computer.5.A CPU is often used to connect computers to each other through phone lines.6.Data can also be stored in a floppy disc，which is small and can be carried easily.7.A hard disc is a disc that contains computer data.It can store a large amount of data.Step 3 Grammar—The Present PerfectPassive V oiceT：Boys and girls，now please pay attention to the following sentences in the text：1.As the years have gone by，I have been made smaller and smaller.2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet.3.I have truly been built to serve the human race since my birth.T：What verb tense is used in these sentences?And what verb voice is used in these sentences?Yes，the present perfect passive voice is used in these sentences.Can you tell us the structure of the present perfect passive voice?Quite right.The structure of the present perfect passive voice is “subject＋have/has been done＋object”.The function of present perfect passive voice is indicating verbs’ the present perfect and the passive voice.OK，let’s practise the present perfect passive voice.Task 1T：Please turn to Page 20.Let’s finish Discovering useful structures.At first，look at Ex.2.According to examples，change the following sentences into the present perfect passive voice.Put the verbs into the correct form.Suggested answers：1.A new personal computer has been bought.2.Many problems have been found with our new computer.3.A PC has been built the way we wanted.4.Our computer has just joined to the Internet.5.The computer has been used every day since we bought it.6.A lot of e-mails have been written on the computer in the last year.Task 2T：Class，let’s play a game called “What has been decided”.Now，get into groups of four.Y our task is to decide what things have been decided for the class.Take turns to make the ideas as interesting and lively as you like.You may finish them according to EXAMPLES on Page 21，（or finish Ex.3 after class.）Then collect the ones you all like best and be prepared to tell them to the class.Suggested answers：S1：It has been decided that those who know of the computer will be asked to say something in class.S2：It has been decided that those who didn’t clean the blackboard will be asked to come into office after school.Task 3T：Now，please turn to Page 57.Finish using structures.First，look at Ex.1 and change the following sentences according to the model，and pay attention to the passive voice form.First do the exercise individually，and then check your answers with your partners.After that we’ll check the answers in class.Step 4 HomeworkT：OK，it’s almost time for a break.Now look at Ex.2 on Page 57.Translate the following sentences into English after class.The words and expressions in brackets may help you.Step 5 The Design of the Writing on the BlackboardUnit 3 ComputersPeriod 2The Present Perfect Passive V oice1.As the years have gone by，I have been made smaller and smaller.2.Since then，my family and I have been used by billions of people to deal with information and communicate with each other around the world by the Internet.3.I have truly been built to serve the human race since my birth.Structure：“subject+have/has been done+object”Step 6 Record after Teaching。
高中英语Unit3Computers教案新人教版必修2
Unit 3 Computers类别 话题词汇词组、 短语功能语法随堂练习教学目的和要求〔〕Information technologyhistory and basic knowledge of computers robotscalculate calculator PC notebook common analytical simple simple-minded technology technological revolution universal mathematical artificial intelligence anyway totally network truly race birth IT advantage disadvantage type disagree choice material personally create coach move arise brain mop wanderin common in one ’s opin ion go by so ... that ... deal with humanrace in a way make up with the help of after all watch over1. 做出决定〔 Making decisions〕I think that ... In my opinion ... I believe that ...Let ’ s make our decision.I ’ ve decided that ...2. 推理〔 Reasoning 〕The advantage/disadvantage is ...What ’s your reason? Why do you think so?I think this one is better because ...I don ’t like this one because ...现在完成时的被动语态结构和用法I have been made smaller and smaller.I have been used by millions of people.I have truly been built to help the human race.1、 Go over the story and discuss with your partner who the speaker is in thisstory.Now write down three sentences from the story to support your idea. It is a computer because it describes ：Itselfas the analyticalmachine designed by CharlesBabbage 〔 which was the firstdesign of a computer 〕. Then in 1822 I was builtas an AnalyticalMachine by CharlesBabbage.Alan Turing as its real father 〔 and he designed thefirstreal computer 〕 . “ Myreal father was Alan Turing ...〞Having artificial intelligence〔 which only computers have 〕 . People have naturalintelligence.“ However, people thoughtI was simple-mindeduntilthey discoveredI had ‘artificial intelligence’ . 〞课程标准要求掌握的工程 ；Teaching aims and demands2、 Look at the timeline below.Fillin the blanks with information from the reading above.Timeline1642： The computer began as a calculating machine.1822： The Analytical Machine was made by Charles Babbage.1936： Alan Turing wrote a book to describe how computers could be made.1960s：Computers had new transistors and became smaller.1960s：The first family of computers was connected to each other.1970s：Computers were brought into people’ s homes.Now： Computers connect people all over the world together.课堂笔记1、 I know this sounds very simple,but at that time it was a technological revolution.我知道这听起来很简单，但是在那个时候这却是一项技术革命。