高中英语人教版book 2unit3computerswhoami
Reading
Scanning to get specific information
1642
The computer began as____________________ a calculating machine.
The Analytical Machine was made by Charles Babbage. Alan Turing wrote a book about how computers a universal machine. could be made to work as__________________ as large as a room. Computers had grown________________________ The first family of computers was connected by___________________ a network.
tubes transistors chips network World Wide Web
Para 3: Since the 1970s many new applications have been found for me. communication finance mobile phones trade robots medical operations space rockets
1822 1936
1940s 1960s
Computers have become very important in finance and trade． 1970s communication, ___________________________
now
Computers are devoted friends and helpers of the__________________ human race.
Mobile/cell phone
I am an electronic machine that can store, organize and find information, do calculations and control other machines. My nickname is “PC”.
abacus
I am very small. I can be used for calculating. A lot of students use me when solving mathematical problems. Do you know who I am?
calculator
I am a machine that you can use to talk to other people even in a far away place. You can carry me around you. Now each of us often has a number. Do you know who I am?
2. listen to the musቤተ መጻሕፍቲ ባይዱc
3. see films & watch news
4. play games
5. do shopping 6. save a lot of time …
Debate show
Should we use smart phones in school?
Rules: • One student one point • Stand up to express your idea • Loudly • Clearly
Homework
1. Read the passage fluently after class; 2. Finish <名校学案> reading.
Do you know who I am?
computer
READING
Study the title:
“Who am I ?”
A computer.
What’s the figure of speech(修辞) of this passage?
Personification（拟人）
Personification（拟人）
Topic sentence
Over time I have been changed quite Paragraph 1 a lot. These changes only became possible Paragraph 2 as my memory improved. Since the 1970s many new Paragraph 3 applications have been found for me.
Discussion
List the advantages and disadvantages of the mobile phone
Advantages
1. communicate with friends
Disadvantages
1. 2. get too addicted (沉溺于)to it . waste too much time in playing games. 3. may be cheated (欺骗)by someone on line. 4. have little time to study 5. bad for our eyes and health 6. have trouble in communicating with others …
After Reading
Summary of the text
It’s known to us all that the computers is one of the most important inventions in the 20th century. Though it’s widely used in our calculating machine in 1642. In 1822, daily life, it began only as a _________ analytical the _________machine was made by Charles Babbage. At that time, programmed by an operator who used cards after the computer was __________ quicker with holes, it could “think” logically and produce an answer _______ than any person. With the time going by, the computer has been made connected with each other. smaller ________. Later, computers were __________ shared The information could be _______. applications Since the 1970s many new __________have been found for the communication finance and computer. It has become very important in ____________, trade. The computer is a devoted friend and helper of the_______ human race.
These amazing inventions we saw in the video come from the following common things:
Have a guess
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. Do you know who I am?
Careful Reading
Para 1: Over time I have been changed quite a lot. analytical calculating machine machine
laptop
PC( desktop)
universal machine
Para 2: These changes only became possible as my memory improved.
Reading
Skimming to get general ideas
What’s the main idea of the passage?
It’s a short history of the development of computers. ____________
In what order is this passage arranged(安排）? Time.
高中英语人教版必修2+Unit+3+Computers+period+1+教案.doc
新课标高中英语必修2 Unit 3 Computer 全单元教案M2 Unit 3 ComputerPeriod 1:Warmin/g up(WHO AM I?)Warming upThis section is an introduction to the topic．It is to get the students thinking about the different ways computers can be made．Do this part of the lesson in pairs and as a speaking activity．Warming up by talking about computerLook at the pictures on page 17. What are they? What do they have in 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 that knowledge. This knowledge is stored in symbols; it is called data.A computer usually has a monitor to show results. However, some computers can speak; these computers can be used for voice mail.Draw on the blackboard a diagram to illustrate the influence of the computer and the Internet over the school education．Below is a diagram you may like to use．Ask students to look at the diagram and consider, ”What changes have computers and the Internet brought to schools? What changes will they bring to schools in the future?”Ask the Ss to work in groups and to make a list of the possible changes they can think of．When most of the groups have their lists ready, the teacher can hold a class discussion．Write down the major changes the students think of under / beside the diagram．The teacher can add one or two changes that may affect their own teaching．For example, “Computers and the Internet can help busy parents contact teachers by email．”The teacher can end the task with a brief s ummary, or hold a further discussion to find out students' personal opinions about the changes．For example, ask them, “Do you like all these changes? Why and why not? What changes do you like / dislike?”Some information:计算机室A computer frequently requires a boot device. The boot device contains the computer’s operating system and data. Computer programs can be installed onto a computer. Some people think that computers are less useful if they do not have access to the Internet. They think this because the Internet 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 in some places, laws require that the cost of its waste management must also be paid for. This is called product 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 them within two or three years. This makes the problem worse. Computer recycling is thus common. Many projects try to send working computers to developing nations so they can be re-used and will not become waste as quickly. Computer jargon 计算机行话Computer jargon means words to do with computers and surrounding topics. Knowing what these words mean can help you know more about computers. Some people use these words to impress other people (Also known as buzzwords). Examples of jargon:Bit - The smallest data unit, can either be a “0.” or a “1.”.Byte - 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(随机存取存储器), 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 InternetPeriod2-3 Pre-reading & ReadingPre-readingThis can be a continuation of the Warming Up．Let the students discuss the questions set out in the Student's Book．1. Questioning and answering What do you know about computer?●Electronic machine capable of performing calculations and other manipulations of various types 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, and supplies an output. A computer usually contains memory, a control unit, arithmetic and logical units, and a means for input and output.●a programmable har dware 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.●Related 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 performi ng 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 (a modulator/demodulator circuit for encoding/decoding computer chatter) to ordinary telephone lines, should be as ubiquitous as the telephone itself. They’re a much more use ful and humane tool than the phone, and with corporate America behind them the networks will be everywhere----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.II. ReadingThis is the purpose of the reading and so it is important that the students learn to use all the clues in the text to help them understand the gist of what they are reading．So encourage them to look at the pictures and the heading and guess what the text might be about．Then ask the class to read the passage silently．Make sure the students have the chronology of the development of computers in their minds．Ask them:1. 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 them down into your notebook after class as homework.Collocations from WHO AM I?begin as…, a calculating machine, be built as…, follow instructions from…, sound simple, at the time, a technological revolution, write a book, make…work, solve problems, become huge, had artificial intelligence, go back t o…, the size of…, go by, change size, become small and thin, get quick, stand there by oneself, be connected by…, share information by…, talk to…, bring…into…, deal with…, communicate with…, serve the human race3. Reading, identifying and settlingAttention, please! It is time to skim the text one more time and identify the difficult sentences. Try analyzing the structures of the difficult sentences and discuss them among your group members. You may also put your questions to me for help.Chat （online）（在线）聊天To chat is to talk about ordinary things that are not very important. You can chat to one person or to many people. People also use this word now for parts of the Internet where we can talk with many different people at the same time. Usually, you chat on the internet in a chat room or messaging service like AOL(American On-Line) Instant Messenger (AIM), Yahoo Messenger, or MSN Messenger.IV. Closing down by doing comprehending exercisesTurn to page 18 and in pairs do the comprehending exercises No. 1 and 2. Reading and transferringScan the text for information to complete the table below, describing the development of computer.In 1642In 1822In 1936In 1960sIn 1970sAnswer key:1642: 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 to work．1960s: Computers had new transistors and became 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 togetherV. Explanation1．in common: for or by all of a group 共同的；共有的；共用的。
人教版高中英语必修二(Book 2 Unit 3)
人教版高中英语必修二（Book 2 Unit 3)Unit 3 Computers核心单词1. common adj. 共同的，普遍的；常见的常用结构：in common 共有，公用(在句中多作状语）have nothing/little/a lot/something in common (with) sb. 与某人没有/许多/有些共同之处in common with 和……一样common sense/knowledge 常识common welfare 公共福利易混辨析common/ordinary/usual/normalcommon 指"共有的，公共的；共同的；常见的"。
反义词为rare。
common作"普通的"讲时可与ordinary换用。
如"普通人"也可以说成common people。
ordinary 意为"普通的，平淡无奇的"，指没有什么特别的地方。
usual 意为"平常的，通常的，一向的"，含惯例之意。
normal 意为"正常的"。
Jane and I have nothing in common.=I have nothing in common with Jane. 我与简毫无共同之处。
The problems are common to all societies. 这些问题是所有社会的通病。
In common with many young people, he prefers pop songs.和许多年轻人一样，他喜欢流行歌曲。
He is in ordinary clothes. 他穿着平常的衣服。
We meet every day at the usual place. 我们每天在往常那个地方见面。
单项填空Harry visited the bookstore every week. He became sucha______________customer that the bookseller gave him some books as presents.A. commonB. normalC. usualD. average解析：选C。
高中英语人教版必修2unit3ComputersGrammar课件(系列四)
Tell the different sentence patterns of the present perfect
passive voice?
sentence patterns
Sth. have/has been done (by...) Sth. have/ has not been done
Group work 1
Complete the sentence.(1'×4) • ---- Things will be different from how they are now. released to (release) the • ---- Yes, a detailed reform plan has been _____________ public after the Third Plenum of the 18th Communist party of China Central Committee(十八届三中全会).
famous detective novel of British novelist Arthur Conan
Doyle by an English company.
When is passive voice better than active voice?
Group work 1
2. In the TV drama, Sherlock, together with his fantastic assistant John Walson has solved a lot of
Group work 2
Computer games have been regarded as a waste of time.
人教版高中英语必修二unit-3《computers》(using-ldocxngu
人教版高中英语必修二unit 3?computers?〔using language〕学案 1、山东省泰安市肥城市第三中学高一英语人教版必修山东省泰安市肥城市第三中学高一英语人教版必修2?Unit2?Unit33Computers?UsingComputers?Usinglanguagelanguage学案学案【学习目标】理解课文中重点句子，把握句中固定搭配和重点单词和短语的用法。
【学习重点】signal,arise,inaway,withthehelpof【课型】新授课【回忆预习】Readingthepassagefluentlyandfindoutsomeusefulwordsandphrases.【新学问学习】Step1:Rea2、dingReadthefirstparagraphandanswerthefollowingquestions.Q1:whoistalki nginthepas sage?IsAndyarealperson?Q2:whatdoesAndylooklike?Q3:What’sAn dy’sjobinthefootballteam?Q4:whathelpsAndymoveinthefootballcompetitio ns?Readthesecondparagraphandanswerthefollowingquestions.Q1:whichcomp 3、etitionhasAndybeento?Q2:DidAndy’steamwintheSeattlecomp etition?Whatha ppened?Q3:whoistheircoach?Whydoyouthinkso?Step2:Importantwordsandphra ses:1.聚集2.用计算机语言3.就个人而言4.鼓舞某人做某事5.决心做某事6.在某种程度上7.牢靠的8.毁灭，发生9.编造10.到底11.在—关怀下Step3:Languagepoints1．signaln.信号v.发信号，用信号示意原句再现：拓展：signal(to4、)sb.todosth用信号示意某人做某事1)Inthepast,thesmokeontheGreatWallisthesignalofcomingenemies.2)司机示意让他过大路。
人教版高中英语必修二UNIT3COMPUTERS教学设计
Unit 3 Computers(教学设计)Reading: Who am I?Teaching goals:1. To have a better understanding of the main idea of the passage.2. To enable the students to talk about computers and robots in English3.To learn two reading skills.Teaching aids: Computer, student’s book.Teaching difficulty: How to find topic sentences and supporting details.Teaching procedures:Step 1. Lead-inShow the topic of the unit and tell the students that what we are going to learn today. At first,I will show them some pictures and get them to say what they are.An old calculating machine used in China until now. (An abacus)It is built to solve some mathematical problems. But it is too big. (A huge computer) It is a new calculating machine which can solve a large number of mathematical problems.(A calculator)It is a personal computer which can solve all kinds of problems and is used widely now.(A PC / personal computer)Then show these pictures out of order and let them put the pictures in order of time. Check the answers together. Let the students know what they’ll learn today.Show the teaching aims on the screen: Getting a better understanding of the passage. Learning two reading skills.Step 2 SkimmingAsk the students to skim the first paragraph as quickly as they can and answer: Who am I in the passage?They can deal with this question easily so we just need to check the answer.Reading for the main idea of the passage. They can choose it from two sentences. Give students only 1 minute, then ask them to get the main idea of the passageStep 3 Reading for specific information.At the beginning, explain to the students what topic sentence and supporting details mean. Students can read the explanation on the screen by themselves.As the passage is a bit difficult, I’ll lead the students to find out the topic sentence and supporting details of paragraph 1. Add explanations where necessary.Next, the students should be able to find out the topic sentences and supporting details of paragraphs 2 and 3. Give them several minutes.After finishing the tasks, make a simple summary.As we talk about the development of something, time is very important for us to understand better. Now let’s complete the timeline on page 19. Give them three minutes to finish it individually.A chain of events showing the development of computer / Changes of the machineTimeline1642: ____________________________________________::the Analytical Machine was made by Charles Babbage.1936:_______________________________________________________________________1960s:______________________________________________________________________: the first family of computers was connected to each other.1970s: ______________________________________________________________________Now:_______________________________________________________________________In order to help the students get a better understanding, I’ll show them a short video about the development of computers.Step 4 Post-readingNow we know the development of computers(show the pictures in the right order). Can you guess What’s Next?Give students 2 minutes to talk with parters about What will robots do for us in the future?Then ask some students to share their opinions with us.Summarize like this: Robots are useful in our daily life. For example, it can help us cook, clean the room, wash clothes and accompany us . Also, they can direct the traffic,carry out operations and even do some dangerous jobs.Blow the short summary, I’ll show them two sentences and they are supposed to decide which one is the topic sentence:A.Robots can do a lot of things for us.B.Robots have changed a lot.Step 5 SummaryToday we have learnt:1). the development of computers2) how to find topic sentences and supporting details.Encourage the students to use the reading skills in study.Step 6 Homework1. Read the text aloud and try to retell it in order of time.2. Read the passage again. Underline the sentences that you don’t understand and try to solve the problems using context clues and the dictionary.。
最新人教版高一英语必修2-Unit3-Computers全单元教案
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。
高中英语必修二：unit3+Computers说课稿
必修二Unit3Computers说课稿本课是高一必修模块2第3单元的阅读课，这篇题为Who am I的课文以第一人称的拟人手法介绍了计算机发展演变的历史和计算机在各个领域的广泛应用，其主旨是表达计算机的发展之快以及在生活中用途之广。
虽然计算机这个话题是我们日常生活中熟悉的话题但是本单元课文属于科普类说明文，内容抽象，专业术语多，对高一学生来说比较有难度。
教学目标结合本课教学内容，具体从语言知识、语言技能、情感态度三个方面制定如下教学目标。
1. 语言知识目标：使学生了解计算机的相关词汇，能够通过学习简单了解计算机的发展史。
2. 语言技能目标：a)阅读技能的训练：让学生学会克服生词障碍，通过略读，归纳出文章的大意b)学习怎样找主题句(topic sentence)和支持性细节(supporting details)；3.情感态度与文化意识目标：a）了解有关计算机的发展史，并通过讨论活动激发学生对计算机的兴趣。
b）培养学生的合作意识和“合作学习”的习惯。
教学重点和难点：根据《普通高中英语课程标准（实验稿）》关于读的技能目标的具体描述，结合高一学生实际和对教材内容的科学分析，确定本环节的主要教学重点和难点是: 1．重点1）让学生了解计算机发展史。
2）训练学生的阅读技巧，提高阅读能力。
学会找主题句和支持性细节信息：a.根据主题快速捕捉文章重点细节的能力。
b.总结归纳能力。
2．难点1) 如何使学生在有限时间内尽可能多的熟悉并记忆一些与计算机有关的词语。
2) 如何使学生学会在阅读理解和书面表达中辨别并使用主题句，达到语言实践能力的扩展与提高。
教学设备：多媒体设备教学方法本节课主要采用任务型语言教学法(Task-based Language Teaching) 、合作学习教学法（Cooperative Learning Approach）。
教学程序结合本校高一学生实际和对教材内容的科学分析，计划用40分钟完成本文的教学任务，具体安排如下：(一) Pre-reading：激发学习兴趣，明确学习任务。
人教版(PEP)高中英语高三必修2 Unit3 Computers
1936 The computer grew rapidly both in size and in brainpower.
1940s The computers had grown as large as a room.
Do you know who I am?
abacus
I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems.
Do you know who I am?
Which form of IT has the most functions?
TV Computers
Speaking---- Discussion: the Advs and Disadvs of IT
(T)The advantage of … is ….
We think/ don’t think that….
With the help of the android, _o_u_r_l_if_e_w__il_l _b_e_c_o_m_e__m_o_r_e___ _c_o_n_v_e_n_ie_n_t_______________
With the help of the android, _t_h_e_re__w_i_ll_b_e__m_o_r_e_________ _e_n_t_e_rt_a_in_m__e_n_ts____________
Now, listen to find out what is IT.
人教版高中英语必修2U3 Computers 知识要点归纳总结
Book II Unit Three Computers1.as a result 结果, 因此,表示原因和结果。
As a result he was given an excellent job.as a result of sth “由于…的原因”，其后跟名词后名词性短语，但不跟句子。
He was late asa result of the snow.2.so…that…如此……以至于……引导结果状语从句有以下结构: so + adj / adv thatso + many / few /much /little +名词thatThe house is so expensive that I can’t afford it.There are so many people that I can’t get in the bus.3. anyhow adv anyway 无论如何，不管怎样He told me not to buy it, but I bought it anyhow.It may be risky but we'll chance it anyhow.11.in a way 在某种程度上in some ways 在某些方面by the way顺便说说；顺便提一下all the way 自始至终；完全地I don’t like the house in a way.A bad thing can be changed into a good thing inaway.4.arise vi. 呈现; 出现; 发生During the night a great snow has arisen.A new difficulty has arisen.5.with the help of / with one’s help借助于，在…的帮助下The old walk with the help of walking sticks.With the teacher’s help, he made a rapid progress.6..deal with应付, 处理; 对待He have a great deal of problems to deal with.Be careful. She is very difficult to deal with.7.watch over 看守,监视watch out 注意；当心He used to be made to watch over sheep.Watch out ! A big dog is coming at you.8. from …on 从……时开始；从……时以后From then on he refused to talk about it.We must study even hard from now on.9. consist of =be made up of…由。
人教版高中英语必修二unit3Computers
way to help him keep track3 of things he couldn’t remember.He
invented a software4 program that allowed him to create a document
that had links to other documents.He continued to develop his idea
万维网的出现彻底改变了世界，创造了大量的财富并从根 本上改变了人们的生活方式。而它的创始人英国计算机科学家 蒂姆·伯纳斯·李对于自己这一成果的现状并不满意。一起去了解 一下这位“万维网之父”吧！
Most people have never heard of Tim Berners-Lee.He is not nearly as rich or famous as Marc Andreessen，who is the founder of Netscape，or Bill Gates，whose name has become a well-known word.
识 点 reality n．真实；事实；现实totally adv.完全地；整个地
目 单 application n．应用；用途；申请network n．网络；网状物
标 词 mobile adj.可移动的；机动的finance n．金融；财经
explore vt.&vi.探索；探测；探究anyhow adv.(也作anyway)
知 重点 识 句型 目 标
易错 难点 语法
Computers
so...that...如此……以至于……
from...on从……时起
deal with处理；安排；对付as a result结果