高一英语必修2第三单元教案.doc

Unit 3 Computer教课方案Period 1: Warming up and readingTeaching AimsTo talk about computerTo read about computerProceduresI. Warming upWarming up by talking about computerLook at the pictures on page 17. What are they? What do they havein common? Yes, they are computers. Then what is a computer?A computer is a machine which stores knowledge in its memory and does calculations on thatknowledge. This knowledge is stored in symbols; it is called data. A computer usually has a monitor toshow results. However, some computers can speak; these computers can be used for voice mail.计算机室A computer fr equently requires a boot device. The boot device contains the computer’ s operatin system and data. Computer programs can be installed onto a computer. Some people think thatcomputers are less useful if they do not have access to the Internet. They think this because theInternet allows the computers to send and receive data and email across the world.曙光 3000 巨型计算机A computer is now almost always an electronic device. It usually contains materials which are toxic;these materials will become toxic waste when disposed of. When a new computer is purchased insome places, laws require that the cost of its waste management must also be paid for. This is calledproduct stewardship.In some countries old computers are recycled (melted down) to get gold and other metals. This is dangerous, because this procedure releases the toxic waste into the water and soil.Computers become obsolete quickly. Very often they are given away and new ones replace themwithin two or three years. This makes the problem worse. Computer recycling is thus common. Manyprojects try to send working computers to developing nations so they can be re-used and willnot become waste as quickly.Computer jargon 计算机行话Computer jargon means words to do with computers and surrounding topics. Knowing what thesewords mean can help you know more about computers. Some people use these words to impressother people (Also known as buzzwords).Examples of jargon:Bit - The smallest data unit, can either be a“ 0.” or a“ 1.” .B yte - unit of data. See also Kilobyte, Megabyte, Gigabyte and NibbleCPU –Central Processing Unit, Another name for processorData - Information stored on a computerDisk - A place to store data.Email - Electronic mail.GHz - Gigahertz. Used often incorrectly to describe the speed of a processor. But with some 2.4 GHz processors faster than 3.6 GHz ones, it is clear that it is just a salesman trick.Load - Get data from a diskNibble - Half a ByteSave - Put data on a diskRAM –random-access memory(随机存取储存器), the more the better.USB - Universal Serial Bus（通用串行总线，一种简化了插接多种附件的薄型插座）WWW - World Wide Web, part of the InternetII. Pre-reading1.Questioning and answering---What do you know about computer?●E lectronic machine capable of performing calculations and other manipulations of varioustypes of data, under the control of a stored set of instructions. The machine itself is the hardware; the instructions are the program or software. Depending upon size, computers are called mainframes, minicomputers, and microcomputers. Microcomputers include desk-top and portable personal computers.●A multi-function electronic device that can execute instructions to perform a task.●A device that accepts information, processes it, andsupplies an output. A computer usuallycontains memory, a control unit, arithmetic and logical units, and a means for input and output.●a programmable hardware component that is controlled by internally stored programs and that can perform substantial computations (including arithmetic and logic operations) without human intervention. A computer typically consists of one or more processing units, memory units, and associated peripheral input and output devices.●R elated to automation and electronic data processing. The Library of Congress commonly classes most computer-related books in HF5548, QA75-76, Z52, T385, and some TK ranges.●a machine for performing calculations automaticallycalculator: an expert at calculation (or at operating calculating machines)●A computer is a device or machine for making calculations or controlling operations that are expressible in numerical or logical terms. Computers are constructed from components that perform simple well-defined functions. The complex interactions of these components endow computers with the ability to process information. If correctly configured (usually by, programming) a computer can be made to represent some aspect of a problem or part of a system. If a computer configured in this way is give2. Discussing and sharing---How have computers changed our lives?Someday soon, if you haven’ t already, you’ re likely to plug into the computer network nation growing in our midst. Computer terminals, or small computers connected via modem (amodulator/demodulator circuit for encoding/decoding computer chatter) to ordinary telephonelines, should be as ubiquitous as the telephone itself. They’ re a much more useful and huma tool than the phone, and with corporate America behind them the networks will beeverywhere----changing our lives more than any technology since the automobile.Joining a computer network is the same as joining a community. Small systems are like villages,where new members are formally welcomed. The larger networks, the Source and CompuServe,for example, are cities-anonymous, full of life and events, but difficult to fit into.III. Reading1. Listening and reading to the recording of the text WHO AM I?Turn to page 18 and listen and read to the recording of the text. Pay attention to the pauses,pronunciation and intonation of the native reader.2. Reading aloud and underlining expressionsNow we are to read the text once again and underline all the expressions in the text. Put themdown into your notebook after class as homework.Collocations from WHO AM I?begin as ⋯ , a calculating machine, be built as ⋯ , at that time, a technologicalrevolution, the start of artificial intelligence, write a book, be made to work, solveproblems, from then on , grow any larger, As time went by, go back to⋯ ,be made smaller, memory became so large, stand there by oneself, be connected by share knowledge⋯ with, othersthrough⋯ , be put into⋯ , provide humans with⋯ , deal with⋯ , truly filled with⋯3. Reading, identifying and settlingAttention, please! It is time to skim the text one more time and identify the difficult sentences. Tryanalyzing the structures of the difficult sentences and discuss them among your group members. Youmay also put your questions to me for help.Chat （ online）（在）聊天To chat is to talk about ordinary things that are not very important. You can chat to one person or tomany people. People also use this word now for parts of the Internet where we can talk withmany different people at the same time. Usually, you chat on the internet in a chat room ormessaging service like AOL(American On-Line) Instant Messenger (AIM), Yahoo Messenger, orMSN Messenger.IV . Comprehending1.Scan the text for information to complete the table below, describing the development of computer.In 1642The computer began as a calculating machine. In 1822The analytical machine was made by CharlesBabbage.In 1936The computer grew rapidly both in size andin brainpower.1940s The computer had grown as large as a room. In 1960s The first family of computer was connected to each other.In 1970s Computers were used in offices and homes. Now Computers connect people all over the world Together.2. Read the text again and complete the chart below.Paragraph 1Paragraph 2Paragraph 3 Topic Over time I have These changesSince the senten been changedonly1970sce quite became possible many newa lot.as my memory applicationsimproved.have beenfound for me. Suppo Calculating tubes communicat rting machine transistors ionsdetails Analytical chips financemachine network tradeUniversal world wide robotsmachine web mobilePC phoneslaptop spacerocketsproviding alife ofhigh qualityPeriod 2:Learning about LanguageTeaching Aims:To learn to use The Present Perfect Passive VoiceTo discover useful words and expressionTo discover useful structuresProceduresI. Warming up by reading to the tapeTo begin with, turn to page 18, listening to and reading to the recording of the text WHO AM I?Attention goes to the pauses and intonation, as well as the pronunciation of the reader.II. Discovering useful words and expressionsIn pairs do the exercises 1, 2 and 3 on pages 20. You must finish them in 10 minutes.III.Learning about grammar1. Passive Voice— OverviewTense or Model Passive SentenceSimple Present The TOEFL exam is given every six months.Simple past The TOEFL exam was given last month.Simple Future The TOEFL exam this year will be given on October15.Present Continuous The TOEFL exam is being given every year.Present perfect The TOEFL exam has been given every year since 1950.Past perfect Simple Modal Past Modal The TOEFL exam had been given before the Vietnam War occurred. The TOEFL exam should be given to every Foreign student.The TOEFL exam should have been given to all to enter US colleges.2. The Present Perfect Passive VoiceThe structure of The Present Perfect Passive Voice is: have/ has ＋ been＋ ~edIV . Reading aloud and discoveringNow go back to page 18 to read aloud and discover in the text examples of The Present Perfect Passive Voice.⋯as a laptop, I have been used in offices and homes since the 1970s.Since the 1970s many new applications have been found for me.V. Discovering useful structureWe shall do grammar exercises 1, 2 and 3 on page 21.VI. Closing down by doing a quizCorrect the mistakes in these passive voice sentencesExample: The house was build in 1880. (correct = The house was built in 1880.)1.3000 employees were laying off.2. A story will made up.3.An idea was putted forward for discussion.4.Has the book been give back to you yet?5.My bank loan will be payed off in five years time.6.Nothing can be hold against me.7.Our allies will be lend support.8.She has never heard of.9.She was being knocked down by a bus.10.She was letted off with a fine.11.The candle was blow out by the draught.12.The criminal were locked up.13.The flood water was be kept back by barriers.14.The inconvenience will made up for by this money.15.The keys must have been being left behind.16.The old cinema is being pull down.17.The protesters being held back by the police.18.The road was blocking off.19.Thirty more people were laid off last week.20.Your jacket can be hanged up over there.Period 3: Using Language Teaching Aims:Todiscuss 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 particularthe 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 22. Discuss in pairs what IT consists of and then make a list. Listen to the text aboutdifferent kinds of information technology or IT, discuss and write down in groups the advantagesand disadvantages of each kind.III.Reading, speaking and writingIt 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 Androidpart of a football team, once a year, get together, play a football game, be as⋯ as ⋯ , in fat,li ke ⋯ , 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, improveone ’ s intelligence, create a better system, play against a human team, in a way, program⋯make up⋯ , after all, with the help of⋯Speaking and writingSuppose you and your partner are going to help choose computers for your school. Now talk aboutthe special things each of the computer can do and write a report to your headmaster.IV. 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. Theword derives from Greek Andr- ‘ man,human’and the suffix -eides used tomean ‘ of the species, kind, alike’ (from eidos‘ species’ ).The word droid, a robot in the Star Wars universe, is derived from thismeaning. Some people maintain that, etymologically, the word android means resembling a malehuman and that a robot resembling a woman should logically be called a gynoid for sexistlanguage 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 severaldifferent 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 fascinationin 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 l'Isle-Adam (1838-1889) inhis work Tomorrow ’sEve, featuring a man-made human-like robot named Hadaly. As said bythe 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.”附：备课参照资料Computer BasicsTo accomplish a task using acomputer,you need acombination of hardware,software, and input.Hardware consists of devices,like the computer itself, the monitor, keyboard, printer, mouse and speakers. Inside your computer there are more bits of hardware, including the motherboard, where you would find the main processing chips that make up the central processing unit (CPU). The hardware processes the commands it receives from the software, and performs tasks or calculations.Software is the name given to the programs that you install on the computer to perform certain typesof activities. There is operating system software, such as the Apple OS for aMacintosh, or Windows 95 or Windows 98 for a PC. There is also applicationsoftware, like the games we play or the tools we use to compose letters or domath problems.You provide the input. When you type a command or click on an icon, you are telling the computer what to do. That is called input.How They Work TogetherFirst, you provide input when you turn on the computer. Then the system software tells the CPUto start up certain programs and to turn on some hardware devices so thatthey are ready for more input from you. This whole process is calledbooting up.The next step happens when you choose a program you want to use.You click on the icon or enter a command to start the program. Letexample of an Internet browser. Once the program has started, it is ready for your instructions. You either enter an address (called a URL, which stands for Uniform Resource Locator), or click on an address you’ ve saved already. In either case, the computer now knows what you want it to do. The browser software then goes out to find that address, starting up otherhardware devices, such as a modem, when it needs them. If it is able to find the correct address, the browser will then tell your computer to send the information from the web page over the phone wire or cable to your computer. Eventually, you see the web site you were looking for.If you decide you want to print the page, you click on the printer icon. Again, you haveprovided input to tell the computer what to do. The browser softwaredetermines whether you have a printer attached to your computer, and whether it is turned on. It mayremind you to turn on the printer, then send the information about the web page from your computerover the cable to the printer, where it is printed out.II. TelevisionOld portable televisionA television (also TV or telly) is a device (tool) with a screen that receives broadcast signals andturns them into pictures and sound. The word“ television” comes from the words tele (Greek for far away) and vision (seeing).Usually a TV looks like a box. Older TVs had large wooden frames and saton the floor like furniture. Newer TVs became smaller so they could fit onshelves, or even portable so you could take it with you wherever you went.The smallest TVs can fit in your hand. The largest TVs can take up a wholewall in your house, and may sit on the floor, or be just a large flat screen thatcan be mounted on the wall. Many TVs are now made in widescreen shape like movie theatrescreens, rather than old, more square TVs.A television has an antenna (or aerial), or it has a cable. This gets the signal from the air, or cableprovider. TVs can also show movies from DVD players or VCRs. TVs can be connected tocomputers and game consoles, usually through a kind of socket called.“ SCART”III. Web or World Wide WebThe World Wide Web is the part of the Internet that contains web sites and web pages.It is not used to describe WebPages that are used offline where net services are not available, orno computer network exists - such as Wikipedia on CD. In this case no real physical site existsother than the place where the computer is. Blog and Wiki capabilities will also not be availablebecause these require a communication with other computers.IV .RadioRadio is a communications invention. Though originally used tocommunicate between two people, it is now used to listen to music, news,and people talking. Radio shows were the predecessor to TV programs.V. DVDDVD most commonly stands for “ digital versatile disk ”It. can playvideo that is of a higher quality than a VHS tape.VI. Two kinds of DVDThey can also hold 4.7 GB of information as opposed to the 700 MB that a CD can hold. A plus of using a DVD for a video is the ability to have interactive menus and bonus features such as deleted scenes and commentaries.VII. EmailEmail (electronic mail) is a message, usually text, sent from one Internet user to another. Email is quicker than snail mail(mail) when sending over long distances and isusually free. To send or receive an email, a computer with a modem andtelephone line connected to the Internet, and an email program arerequired. Email addresses are generally formated like this: login@server.(com or fr or org or uk or other).Some companies let you send and receive email for free from a website. Gmail, Hotmail and Yahoo! do this.VIII. HumanHere are two humans.A man is on the left and a woman is on the right.A human or human being is a person, like you.A male human is a man, a female human is a woman. If you think about all humans in the whole world, they are called humanity. In the past, people have also used man and mankind to mean all humans.Humans are called Homo sapiens by scientists. Humans are an animal species that belongs to the group called primates. Monkeys are primates too, but the primates most like people are gorillas and chimpanzees. Most scientists think that chimpanzees and humans came from a common ancestor by what is called evolution. Other animals even more like humans than chimpanzees once lived too, but they are now extinct.Human rights are those things that everyone deserves and the way they should be treated by other people.选择朋友要经过周祥观察，要经过命运的考验，无论是对其意志力仍是理解力都应预先查验，看其能否值得信任。

教案教学基本信息课题高一英语(外研版)-必修二Unit 3 Listening and Speaking 学科英语学段：高中年级高一教材书名：《英语》（新标准）出版社：外研社出版日期：2019年9月教学设计参与人员姓名单位联系方式设计者实施者指导者课件制作者其他参与者教学目标及教学重点、难点教学目标： 1. Get to know background knowledge related to Tai Chi.2. Take notes and complete some gaps.3. make an interview about a master of Tai Chi.教学重点： e words and expressions to introduce Tai Chi2.Focus on questions and topics while listening.教学难点：Use words and expressions to introduce traditional Chinese sports.教学过程(表格描述)教学环节主要教学活动设置意图Pre-listening While-listening Post-reading Homework Students watch a video and think questionsQ: After watching the video, what would you like toshare?Teacher shares some information about Tai Chi in Mobilehospital.Task 1: Think and answer the questions1) Do you know the name of the sports?2) What purpose does it serve?Teacher guides students to get some information of TaiChi.Task 2: A brief introduction to Tai Chi.Task 3:Listen to the interview and choose the pointsmentioned on P31.Teacher guides students to acquire listening strategiesabout an interview.Task 4: Now talk about the explanations Leah gives fordoing tai chi, answer the question what Tai Chi is.Task 5: Work in pairs online. Act out the interviewbetween a sports journalist and a master of Tai Chi.Task 6: Think about another interview with a fan oftraditional sport in China and have a similarconversation.Task 7: Expand developing ideas, listen to anotherinterview related to sports.1. Sort out notes of Tai Chi.2. Give a speech calling on the teenagers to do Tai Chi orkick the shuttlecock at home because of the outbreak ofCOVID-19.激活已知，激发学习兴趣聚焦太极的定义、特点、益处及个人感受，建立信息沟。

I. 单元教学目标 技能目标 Skill GoalsTalk about information technology and robotsRead about the history and basic knowledge of computersPractice making decisionsListen to a text about information technologyWrite a passage about an androidStudy The Present Perfect Passive VoiceII. 目标语言功能句式 Making decisions The advantage / disadvantage is … I think / don ’t think that … What ’s your reason? What makes you think so …? I think … because (of) I believe that …I agree / don ’t agree … because …I ’ve decided that …As / Since …, I think …词汇．四会词汇solve, explore, anyhow, human race, signal, goal, type, arise, electronic ．认读词汇calculate, universal, simplify, sum, operator, logical, logically, technology, technological, revolution, artificial, intelligence, intelligent, reality, personal, personally, tube, total, totally, network, web, application, finance, mobile,rocket, happiness, download, virus, coach, appearance, character, mop, niece, abacus, calculator, PC, laptop, PDA, analytical, mathematical, designer,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。

Unit 3 ComputersPeriod 1: Listening & SpeakingGOALS:1. To practise listening comprehension.2.To practise making decisions and reasoningTEACHING PROCEDURES: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 fast and 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 both1) (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 expression_r_rs.I think that….In my opi nion, ….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 expression_r_rs (Repeat it to strengthenstudents’ ability of use it.)(Pair work )Use the expression_r_rs 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_r_r do we use to make a decision and reason?(In this way, they can review and use the words and phrases again.) Step5. HomeworkPage 22. writing: Write a report about your choice and try to use the present perfect passive voice as well as the useful words and expression_r_rs that have been mentioned above. in your report.Period 2: Reading and speaking & Writing Goals:1. Learn a reading passage to learn about a football android called Andy.2. Improve students’ reading ability.3. Design an android.4. Write a passage about the problems that the android might have while he/she is serving people. Teaching procedures:Step1: Lead-inShow the first picture and tell the students that computers could be put into androids or robots. Present “android”.Tell the students: Androids are always with us! The students may disagree. Show pictures of Atom and Doraemon. Say: they are androids with magical power.Continue to show pictures of nursery maid androids and tell the students androids can be made to look after humans. Then ask: But can you imagine androids can play football? Maybe you are curious about it. I will show you a video that androids play football.Let the students watch the video and tell them: oday I would like to introduce an android family member to you .His name is Andy. Present the reading passage’s topic: Andy---the Android.Step2: Reading:Let the students read the passage. Carry out the tasks below: Task1: Answer the questions below:1. Who is Andy? What is he good at?(He is an android. And he is good at playing football)2. What helps him to move and think like a human?(His computer helps him to move and think like a human.)3. What does Andy think about the team who beat them last year? Why?(She thinks the team cheated because they had a new kind of programmer, which had just been developed before the competition.)4. What does the programmer do to Andy?(She programs me with all the possible moves she has seen while watching human games.)Task2: Fill in the blanksThe story is about the _____ called ____, who is good at____________. And his__________ makes him think and move like a ______. However, they _____ in the _________ hosted in the USA, because the other team had a new kind of_______. After that, he will ask his programmer to improve his _________ and _______ some new moves.Task3: Language points:1. I think we can work together to create even better software. even = much 用于强调比较的程度2. In a way, my programmer is like my coach.in a way 在某种程度上…in the way 挡道,造成障碍in this way 用这种方法Fill in the blank：1). ________it was one of our biggest mistakes.2). You can finish your work .3). Your bike is .Move it away.3. In this way, I can make up new moves.make up 编写，补上4. After all, with the help of my computer brain which never forgets anything, intelligence is what I’m all about.after all 毕竟with the help of sb./sth. 在…的帮助之下= with one’s/ sth’s help Step3 SpeakingTell the students that we already have many different kinds of androids in our daily life. Show some pictures of androids for different purposes---maid, adventure and work.Then say to the students: Let’s design an android of our own! The following questions and expression_r_rs can help you:＊What would you like it to look like?＊What are some of the things you would like it to do?＊Do you want it to be like a man or a woman, or neither?＊How much would it cost?......Get the students to use the following sentences for discussion:I think that…What’s your reason?In my opinion…I have decided that…Sample:A: What would you like your android to look like?B : In my opinion it should look like a bird.A: That sounds interesting. What will it do for you?B: I think it can sing beautiful songs for me day and night.A : Oh, yes! That sounds good. How much is it?B: It doesn’t cost much money because I will make it by myself.A: Really?! Do you want it to be a man or woman, or neither?B : I want it to be a beautiful girl named Kelly.A: Please show it to us some day.B: Oh, No money no talk.Step4 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 child “no”?Step5 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 par ents’ 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．Hejust 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!Step6 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?Step5: HomeworkWrite about your discussion. You may begin like this:Hello, everyone. My name is ___. I’m 321 model android. I work for the Li family….Period 3: learning about Language---the Present Perfect Passive VoiceGoals: 1. Learn the Present Perfect Passive Voice.2. Help the students master the way of using the correct voice, telling the differences between the active voice and the passive voice. Teaching Procedures:Step 1: Revision and lead-in1. Check the homework firstEx1:1 totally2 revolution3 artificial intelligence4 birth5 simple-minded6 go by7 deal with 8 network 9 truly 10 anywayEx2:revolution; network; went by; totally; truly; simple-minded; Anyway; deal withEx3:1 totally2 amazed3 exciting4 excited5 cheaply6 unlucky2. Lead-inSay: Are you familiar with these computers? Can you call them? (ask the Ss to distinguish different types of computers.)Do you know these new inventions of computer ?A wrist-worn PC has been invented recently.A pen-like computer has already been developed.(show them some pictures and ask them to make some sentences , using the Present Perfect Passive Voice.)Eg: It’s rather a hot day today! Would you like to have a swim after school ?Have you ever swum in the Blue Water World（蓝色水世界）in the Oriental Suntown (东方太阳城) which has been set up in Taizhou? There a beautiful swimming pool has been built .Many high buildings have been set up.Lots of flowers and trees have been planted.A new bridge has be en completed….Step2: DiscoveringAsk the Ss to discover whether these sentences have something in common.. Help them to learn the useful structure : the Present Perfect Passive Voice.Step3: Discussion : learning the structureGive some explanations1构成：主动语态被动语态现在完成时 have/has done----------àhave/has been doneHe has been sent to study the new technology in the company.The dirty clothes have not been washed.Have the windows been cleaned?How many shopping centers have been built in this city?2. 只有及物动词才有被动语态，不及物动词（词组）没有被动语态, 如:happen, take place,die, appear, disappear, fail, remain, lie, last, sit ,stand, break out, come true, belong to等．如：What has happened to your brother?3．但许多不及物动词加介词或副词构成的短语动词，相当于及物动词，也可以有被动语态。

Unit 3 Reading教案Teaching aims1. Ability aimTo develop the students' reading ability by skimming and scanning the text.2. Knowledge aimKnow the development and usages of computerTeaching procedures:Step 1 Lead-inWatch a video about the development of computers to lead in the topic of the class.Step 2 Pre-readingGuess some pictures about the development of computers to let student think about when the inventions appeared.Step3 Reading1. Fast readingSkimming and finding the general ideaNow please skim the text WHO AM I. Then try to get the general idea of the passage. Have you got the main idea?Yes, it tells us the development and usages of computers.2. Careful readingListening to the tape and scanning the passageTo know the content of the interview and finish task 2, 3, 4, 5. Each group finishes a task.Task 2 Choose the best answer and fill in the chart1. “I” in the passage refers to _____.A. A TV setB. A computerC. A radioD. The internet2.When was the biggest computer?A.In 1642B. In 1936C. In the 1940sD. In the 1970s3. Who was the first person to make the earliest computer?A. Alan TuringB. Charles BabbageC. Charles TuringD. Charles Alan.4.When was the universal machine built?A.In 1822.B. In 1642.C. In 1936 .D. In 1940.Task 3 Decide whether they are true or false and fill in the chart1. After I got my new transistors in the 1960s, I became smaller but cleverer and quicker.2. My shape wasn't changed.3. Since the 1970s, the first family of computers was connected to each other.Task 4 Read Para 3 and then answer the following questions and fill in the chart1. What are the new applications of the computer?2. What roles do computers play in the life of human beings?Task 5 Summary of the passageRead and finish the timeline below.Step 4 Post reading1. DiscussionWhat are the advantages and disadvantages of computers nowadays?3.Make a conversationTo use the passage in a practical way to improve students’ pronunciation, stress, rhythm and intonation.Please talk about the advantages and disadvantages of the computers with your partner.Step 5 Summary1Know more knowledge about the development and usages of computers.2Know the advantages and disadvantages of computers.Step 6 Homework1. Review the text and the new expressions.2. Pick out the sentences with the present perfect passive voice in the text.。

信息技术的发展已经深深地嵌入到我们的生活中。

计算机的出现彻底改变了人们传统的生产方式和生活方式。

现代教育不再是仅限于背书和抄板书，而是花费大量的时间和精力去思考、去分析和去实践。

在这样一个信息时代，教师的角色也随之转变。

我们不仅需要教授知识，还需要培养学生的信息能力，帮助他们理解和利用科技并运用它们支持我们的学习和生活。

高一英语必修2 Unit3 Computers全单元教案是一份非常重要的信息技术教案。

这个单元是有关于计算机和互联网的，向学生介绍了计算机的历史和发展，软件和硬件，以及学习计算机和互联网所需的相关知识。

第一课：Computers in Everyday Life这一课介绍了计算机在生活中的应用以及与人们的生活密切相关的一些软件。

我们可以向学生展示各种各样的工具软件，如视频制作、图片编辑、文档编辑、音频制作等等。

我们也可以通过展示计算机硬件的内部结构来引导学生了解计算机是如何工作的。

第二课：The Development of Computers这一课涵盖了计算机诞生以来的漫长历史。

从最初的机械计算器到现代的个人计算机，这里介绍了计算机的种类、发展和特点。

学生能够学习计算机的历史，了解计算机技术的发展和趋势，以及计算机的应用范围。

第三课：Computer and Society这一课程介绍了计算机在社会生活中的应用，并引导学生思考计算机技术对社会的影响，特别是当它开始影响人们的生活、工作和教育时。

我们将会讨论有关网络安全问题，从而让学生了解如何安全地使用计算机。

第四课：Software这一课介绍了计算机系统中的软件，包括操作系统、应用软件、编译器等等。

学生将了解到不同类型的软件的特点，掌握基本的软件使用技巧。

第五课：Data Storage这一课主要介绍了计算机数据存储，包括内存、硬盘等。

学生将学习如何存储、传输和访问数据，并了解如何保护我们的数据。

第六课：The Internet这一课介绍了互联网的原理和应用。

Unit3 Reading优教教学设计（一）教学设计（一）设计意图This is the second teaching period of this unit, aiming to help students get a thorough understanding of the reading material in this unit. The emphasis of this period is mainly placed on some topic sentences, some key details and information of the passage. While teaching teachers should also focus on some difficult expressions and sentences in order that students can really understand the passage thoroughly. At the same time, teachers should help students get acquaintance with some reading skills about narrative writing.教学重点1. Enable students to master the reading skills such as skimming, scanning and getting the main idea of a paragraph or passage.2. Enable students to learn the development of computers.3. Enable students to further understand the new words and expressions in this passage.教学难点1. Let students master the reading skills such as skimming, scanning and getting the main idea of a paragraph or passage.2. Get students to understand the structures and meanings of some difficult sentences.(l) Over time I have been changed quite a lot.(2) I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.(3) As a result I totally change my shape.教学过程(This step is designed to let students get an idea of the development of computers by a question——Guess who I am？)T: Hello, everybody! Nowadays, what are you most familiar with? Today we aregoing to make an interesting game——Guess who he is?Guess who I am?It’s a long history...From then on, I grew rapidly both in size and in brainpower.As time went by, I was made smaller. First as a PC.Then as a laptop.As a result my memory became so large that even I couldn’t believe it!I am a computer!思考引导As we can see from the pictures, computers have developed fast lately, so are you interested in exploring more detailed information?课堂探究Step 1 Reading(This step focuses on helping students develop skills of getting the main idea of a passage. At the same time, let them get some information for the development of computers.)1. SkimmingRead the text quickly and try to find out the topic sentence for each paragraph.Matching work:Suggested answers: 1. Paragraph 2 2. Paragraph 3 3. Paragraph 12. ScanningDraw the timeline (时光轴) and find the relevant (相关的) events.1642 The computer began as a calculating machine.1822 The analytical machine was made by Charles Babbage.1936 The computer grew rapidly both in size and in brainpower.1940s The computer had grown as large as a room.1960s The first family of computers were connected to each other.1970s Computers were used in offices and homes.Now Computers have connected people all over the world.3. Careful readingA. Read the text carefully and then fill in the blanks.B. Read the text again and then do the true or false exercises.(l) In 1642 I began as a calculating machine and could solve any mathematical problem.(2) My real father was Charles Babbage, who wrote a book and built me in 1936.(3) After I got my new transistors in the 1960s, I became smaller but cleverer and quicker.(4) I was brought into people’s homes in the1970s.(5) Since my birth I have been built to take the place of human race.Suggested answers:A. (1) simplify (2) sums (3) analytical (4) logically (5) technological(6) artificial (7) reality (8) went (9) personal (10) totally (11) so (12) that (13) applications (14) rockets (15) explore (16) goalB. (1) F (2) F (3) T (4) T (5) FStep 2 Cracking the difficult points(This step is designed to guide students to understand some important sentences better and finally crack the difficult points.)Observe the sentences carefully and translate them into Chinese.1. Over time I have been changed quite a lot.2. As a result I totally changed my shape.3. I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.4. After all, with the help of my electronic brain which never forgets anything, using my intelligence is what I’m all about.5. This means that it should clean the house, mop the floors, cook the dinner and deal with telephone calls.Suggested answers: 1. 经过一段时间我已被改变了很多。

广东省高一英语必修二第三单元《Computers》全套教案本单元以Computers为主题，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。

一、学前准备：准备录音机、电脑和PPT课件，学生需要预习课后单词和词组。

二、学习目标/重点：1、Talk about information technology and robots；2、Read about the history and basic knowledge of computers；3、Practice making decisions；4、Listen to a text about information technology；5、Write a passage about an android ；6、Study The Present Perfect Passive V oice；7、重点词汇。

solve, explore, anyhow, human race, signal, goal, type, arise, electronic。

8、重点词组。

from…on, go by, as a result, so…that…, in a way, with the help of, deal with, watch over 。

三、教学难点：1、掌握现在完成时的被动语态。

2、学会做决定的表达。

四、单元课时分配:1、第一课Reading 1个课时2、第二课Language study 1个课时3、第三课Listening and speaking 1个课时4、第四课Integrating skills 1个课时。

Unit 3 ComputersTeaching aims:1. TopicInformation technology; history and basic knowledge of computers; robots2. Useful words and expressions:Calculate 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 opinion go by so …that…deal with human race in a way make up after allwith the help of watch over3. Functional items:a)Making decisionsI think that…In my opinion…I believe that…Let’s make our decision.I’ve decided that…b)ReasoningThe advantage/disadvantage is…I think this one is better because….I don’t think this one because….What’s your reason?Why do you think so?4. StructuresThe present perfect passive voiceI have been made smaller and smaller.I have been used by millions of people.I have truly been built to help the human race.Teaching proceduresPeriod 1. SpeakingStep 1. Warming up1. Ss talk about the pictures on page 17 with the teacher’s help.An abacus is an old calculating machine used in China until now.A huge computer is built to solve some mathematical problems. But it is too big.A calculator is a new calculating machine which can solve a large number of mathematical problems.A PC is a personal computer which can solve all kinds of problems and is used widely now.A notebook computer is a kind of useful computer which can be taken conveniently like a notebook.2. Now let’s discuss what they have in common in small groups. Remember to use some of the following expressions.I think that…In my opinion…I believe that…What’s your reason?Why do you think so?Step 2. Listening (page 55)Ss are asked to read fast the requirement of Ex. 1 and 2 to fink out the listening points first. Then listen to the tape twice to complete Ex.Step 3. Talking (page 56)Imagine that your family is thinking of buying a robot. You can afford these three robots mentioned in the listening text. Please discuss which one is the best for you. Remember to discuss the advantages and disadvantages of each one. Them make your choice and give reasons.Using the following expressions in discussion:I believe that….I think this one is better because…Let’s make our decision…In my opinion…I’ve decided…I don’t like this one because..Period 2. ListeningStep 1. RevisionSs talk about something about computers or robots.Step 2. Listening and writing (page 21)Ask the Ss to read through the directions and look at some pictures below and a form above on page 22. make sure they know what to do while listening.Task1. Listen to a conversation about different kinds of information technology of IT.Task 2. Discussion and fillingSs discuss the advantages and disadvantages of each one in small groups and fillStep 3. Listening task (page 58)1. Ss will be asked to look at the picture and the form quickly to find out the important points.2. Play the tape twice and ask the Ss to fill in the form.HomeworkSs discuss the use of computer chips in their spare time.Period 3. ReadingStep 1. Pre-readingSs in groups discuss the following questions:1. What do you know about computers?2. How have computers changed our lives?Step 3. Reading1. Ss read the passage and get the general idea.(The text is mainly about the history and development of computers. And it is also about the relationship of computers and humans.)2. Ss read the passage and finish the timeline on page 19.Suggested answer:1642: The computer began as a calculating machine.1822: The Analytical Machine was built by Charles Babbage.1936: Alan Turing wrote a book to describe how computers could be made.1960s: Computers had new transistors and become smaller.1960s: The first family of computers connected to each other.1970s: Computers were brought into people’s homes.Now: Computers connect people all over the world together.Step 4. After-reading1. Ss discuss:What changes have computers and the internet brought to schools?What changes will they bring to schools in the future?2. DebatingTopic:Surfing the internet more is good for young students.Surfing the internet more is bad for young students.Homework1. Recite the key sentences in the text.2. Prepare for learning about language.Period 4.(Language learning and grammar)Step 1. RevisionSs try to retell the text, using their own words.Step 2. Language points1. in commonhave nothing in commonhave little in commonhave something in commonhave a lot in common2. simple-mindedabsent-mindedopen-mindednarrow-mindedsingle-mindedstrong-mindedweak-minded3. make a decision4. in a way5. after all6. watch over7. wanderStep 3 Discovering useful words and expressions1. Ss read the text and finish exercise 1 on page 19.2. Ss read the passage on page 20, part 2 and try to complete it with appropriate words.3. Ss look at the sentences in exercises 3 on page 20, and tick the right word.Step 4. Grammar: The present perfect passive voiceShow the Ss the following sentences, and then change them into passive voice.1. We have made a plan.2. He has fixed the computer.Step 5. Practice (discovering useful structures)Ss finish part 2 on page 20.Homework1. Review what they have learnt about the present perfect passive voice.2. Finish Wb exercises 1 and 2 on page 56 and 57.3. Finish using structures, exercise 1 on page 57.Period 5. Extensive ReadingStep 1. RevisionCheck Ss’ homework.Step 2. Reading (P22)1. Ss read the passage and discuss how to design their own android.2. Ss answer the following questions:1). What would you like it to look like?2). What are some of the things you would like it to do?3). Do you want it to be like a man or a woman, or neither?4). How much would it cost?3. Ss read and finish True of False questions.4. Check the answers.Step 3. Reading (page 58)1. Ss read the passage on page 58 quickly.2. Ss fill in the form of Ex.1 and keep a record of his performances.Step 4. Speaking1. Imagine you have been lucky enough to be allowed to interview Hua Fei in hospital for your school newspaper. Work out some questions.2. Ss play roles in pairs. One of you will interview Hua Fei. The other will imagine he/she is Hua Fei. Then change roles. Finally, take notes of your partner’s answers to the questions.HomeworkPrepare your writing for the newspaper.Period 6. WritingStep 1. Speaking and writing (page 22)1. T: Suppose you and your partner have been asked to help choose computers for your school. You have looked at several computers. Talk about the special things each computer has. Make a decision about which kind of computer to buy and explain why. There is a list of things your computer could have on page 22.A fast PC the monitor is smallerImproved disc storage used recycled materialsInternet a flat screen2. Ss talk about the special things each computer can do and write a report.3. Ss read their report in class.Step 2. Writing (page 23)1. T: suppose you are an android and work for a family with one child who is very spoiled. The parents want you to do everything for them. The parents are kind, but they often ask you tko 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 tell the child “no〞?2. Ss write their passage with the beginning on page 23.Step 3. Writing task (page 60)Ss try to finish the writing task on page 60 if time permits.HomeworkFinish the project on page 60.Period sevenTeachers can use this period freely.Suggestion: Teachers can use this period to let Ss sum up what they have learned and explain what Ss couldn’t understand very well in this unit. Teachers can also add more practice in this period to consolidate what the Ss have learned. Finally, ask the Ss to finish checking yourself. It is very important to improve their learning.。