人教版高中英语必修二学案：Unit 3 Computers Period 1 Warming up and Reading(精修版)
人教版英语精品资料（精修版）Book 2 Unit 3 ComputersPeriod 1 Warming up and Reading导学目标1.初步学习本课时的词汇和短语operator, simplify, logical, personal, total, from...on , asa result 等2.了解学习有关计算机的背景知识及发展历史3.通过阅读习题达到把握课文信息，提高阅读水平自主学习I. 重点单词1.___________n. 操作员；接线员________________ v. 操作；经营________________n.操作；经营2._________________vt. 简化_______________adj.简单的3.___________adj. 合逻辑的；合情理的_________________adv.逻辑上；合逻辑地4.________________n.智力；聪明；智能_____________________adj.智能的；聪明的5.___________adj.&n.总的；总数；合计_________________adv.完全地；整个地6.___________adj.私人的；个人的____________adv.就个人而言；亲自_______________n.个人；自己7.______________n.应用；用途；申请_____________v.应用；申请_______________n.申请人；求职者8._______________n.幸福；快乐______________ adj.幸福的；快乐的9.______________v.探索；探测；探究___________________n.探索________________n.探险家10.______________n.真实；事实；现实_____________adj.真实的；真的II. 重点短语A. 短语互译1 __________ …on 从……时起 2. as a _____________ 结果3. so…._________... 如此……以致于4. human __________ 人类5.___________way 在某种程度上6. _________ the help of 在……的帮助下7. ______________ deal with 8．______________ watch overB．用上面词组的适当形式填空9．Because of the pilot's strike，_________________, all flights have had to be cancelled. 10．___________________computers，you'll find it easy to share information.11．____________________，you are right — her English has improved a lot.12．__________________(从现在起)，we will work together to achieve our goal.13．He has ________________ many complicated situations successfully so far.14．It's her duty to _________________ these old men.15.The boy was ___________ young ___________he couldn’t go to school.合作探究文本感知( ) What's the main idea of the text?A．The functional change of the computer.B．The computer becomes popular around the world.C．The history of the computer.语篇理解I.阅读P18的Reading部分，从每题所给的4个选项中选择最佳答案1．In 1936，Alan Turing wrote a book about ________. ( )A．how to simplify difficult sumsB．how the computer could be made to wor k as a “universal machine”C．how to build an analytical machineD. how to use a computer2．Why did the computer totally change its shape? ( )A．Because the computer could do many things.B．Because the computer could simplify sums.C．Because its memory improved.D. Because there’s no more room for it.3．How can you understand the underlined word? ( )Since the 1970s many new applications have been found for me.A．A formal request for sth. B．The practical use of sth.C．An act of spreading sth. D. Some useful tools4．From the passage，“I” refers to ________. ( )A. a machine which is simple-mindedB. a “universal machine” which can solve any mathematical problemC. a person who built an analytical machineD. a famous writer5. What can you infer from the text? （）A. The computer has artificial intelligenceB. The computer changes a lot over the yearsC. The computer was not connected by a networkD. Now the computer can only be used to deal with informationⅡ.阅读P18的Reading部分，完成下面表格，每空不超过3个词Ⅲ. 佳句背诵1．I developed very slowly and it took nearly two hundred years ___________ I was built as an analytical machine by Charles Babbage.我发育缓慢，差不多到了两百年之后，查尔斯·巴比奇才把我制成了一台分析机。
2．_____ time went by，I was made _____________. 随着时间的推移，我被做得更小了。
3．Over time my memory has developed ____ much ______，like an elephant，I never forget anything I have been told! 随着时间的推移，我的记忆能力发展得如此之快，就像一头大象一样，我从来不会忘记告诉…！4. Since __________________ many new applications have been found for me.(P18)自从20世纪70年代以来，我有了很多新的用途。
5.I ________________________________ space rockets and sent to explore the Moon and Mars.(P18)我还被放置在航空火箭里去探测月球和火星。
达标检测课文缩写It's known to us all that computer is one of the most important inventions in the 20th century.Though it's widely used in our daily life，the computer didn't have artificial 1.__________________.It began only as a 2.______________ machine in 1642.In 1822 the 3._____________ machine was made by Charles Babbage. It was 4.________________ by an operator who used cards with holes.In the 1960s computers had new transistors. With the time 5.________________ the computer has been made smaller and smaller，quicker and quicker. Later，in the early 1960s,the single computer was 6.____________ with each other by a network.. The information could be7.____________with others through the World Wide Web. Since the1970s many new8.____________________ have been found and the goal is to 9._____________humans with a life of high quality. It is a 10.______________ friend and helper of the human race.。
人教版高中英语必修2教案Unit 3 Computer
人教版高中英语必修2教案Unit 3ComputerUuterPart One: Teaching Design (第一部分：教学设计) Period 1: A sample lesson plaading(WHO AM I?)AimsTo talk about computerTo read about computerProceduresI. Warming upWarming up by talking about computerLook auage 17. What are they? What dav?are computers. Then what is a computer?A computer is a machine wwledgand does calculaat knowledge. This knowledgd in symbols;alled data. A computer usually has aw results. Howevuters can speak;uters can be used for voice mail.计算机室A computer frequently requires a boot device. The boot devauter’s operatingand data. Computer programs can be installed onto a compulat computersare less usefuldo not have aITbecause the Iallowud and receive data and email aworld.曙光3000巨型计算机A compuw almost always an eldevice. It usually contains materials which are toxic;aterials will bxic waste when disposed of. When a new compuurchasedlaces, laws require thawaste management must also be paid for. Talled product stewardship.Iuld computers aled (melted down) to get gold andals. This is dangerous, becaudure releaxic wawater and soiluters become obsolete quickly. Vare given away and newlawithin twars. This mablem wuling is thuad working compudeveloping naan be re-used and will not become waste as quickluter jargon 计算机行话Computer jargon means words to do wuters and surroundingwing whawords mean can help you know more about compule uwordle (Also known as buzzwords). Examples of jargon:Bit - The smallest data unit, cabe a “0.” or a “1.”.Byte - unit of data. See also Kilobyte, Megabyte,Gigabyte and NibbleCPU –Central Pg Unit, AaData - Informad on a computerDisk - A pladata.Email - Elail.GHz - Gigahertz. Usedly to describd of aBut w2.4 GHaster than 3.6 GHlear thaust a salesmaLoad - Get data from a diskNibble - Half a ByteSave - Put data on a diskRAM – random-a(随机存取存储器)bUSB - 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, paIII. Pre-reading1. Qug and answering‑‑‑What do you know about computer?●Elachine capablg calculations andanipulavarioudata, undl of a storeduThe malardware;uctions agraware. Depending uuters are called mainfrauters, anduulude desk-top and portablal computers.●A multi-fuldevice that can execuua task.●A device that aaand supplies an output. A computer usually contaa control unit, aand logical units, anda meaut and output.●a programmable hardwaalled bally stored programs and that caubstantial computations (including aand logic operations) without human intervA compuallg uunits, and associatedal input and output devices.●Related to automation and eldatag. The Libragly clauter-related bHF5548, QA75-76, Z52, T385, and some TK ranges.●a mag calculations automaticallycalculator: an expert at calculation (or at operating calculating machines)●A computer is a devaaking calculalling operaat are expressible in numerical or logicaluters auctedale well-defined fuThe complex interadow computers wabilation. Ily configured (usually by, programming) a computer can be madaa problem or part of aIf a compuguredway is give2. Discussing and sharing‑‑‑How have computers changed our lives?Somedau haven’t already, you’re likely to pluguternetwork nation growing in our midualall compud via modem (a modulator/demodulauding/decoding computer chatter) to ordinary telephone luld be as ubiquitous allf. They’re a muuseful and humane tool thaand wate behindworks will be everywhere----changing our livan alogautomobilg a computer netwame ag a commuallare like villages, where new members are formally welcomed. The larger netwurce and CompuServxample, a-anonymous, full of life and events, but difficulIII. Reading1. Listening and readingdingxt WHO AM I?Turn to page 18 and listen and readdingxt. Pay aauunciation and intonaative reader.2. Reading aloud and underlining exNow we aad the text once again and underline all the exxt. Put them dowur notebook after class as homewllocaWHO AM I? begin as…, a calculating machine, be built as…, follow instru…, sound simple, aa technological revolution, write a book, make…work, solve problems, become huge, had artificial intelligence, go back to……, go by, changball and thin, get quick, stand there by oneself, bd by…, shaation by…, talk to…,bring…into…, deal with…, communicate with…, serve the human race3. </st1:dg and settlingAlease! Ixand iddifficulTry analyzinguctudifficuland discuamong your group members. You may also put your qulp.Chat （online）（在线）聊天To chaalk about ordinary things that are not vant. You can chaany people. People also uword now for paIwhere we can talk with many dle at the saUsually, you chaa chaaging service like AOL(American On-Line) Instager (AIM), YagN Messeng and tragScaxalable below, describing the develuter.In 1642In 1822IIn 1960sIn 1970sIV. Closing down by doingding exTurn to page 18 and in pairs dding exNo. 1 and 2.Period 2: A sample lesson plan for Learning about Language(The Present Perfect Passive Voice)AimsTo learn to useThe Present Perfect Passive Voice To discover useful words and exTo discover useful structuresProceduresI. Warming up by readingapeTo begin with, turn to page 18, listening to and readingdingxt WHO AM I? Agauses and intonation, as well aunciaader.II. Discovering useful words and exIn pairs do the ex2 and 3 on pages 19 and 20. You mu0 minutes. III. Learning about grammar1. Passive Voice—OverviewTdelPassivle PThe TOEFL exam is given every sixle past The TOEFL exam was given lale FutureThe TOEFL exaar will be givbPuousThe TOEFL exam is being given every year.PThe TOEFL exam has been given every yea0.PaThe TOEFL exam had been given bVietnam War occurredle ModalThe TOEFL exam should be given to every Foreignstudent.Past ModalThe TOEFL exam should have been given to allUS 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 pagad aloud and discovxt examples of The Present Perfect Passive VAars have gone by, I have been made smaller and smallamily and I have been used by billle to deal wation with eaaround the world by the IV. Discovering useful structureWe shall do grammar ex2 and 3 on page 20.VI. Closing down by doing a quaassive vxample: The house was build in 1880. (The house was buil0.)1. 3000 employees were laying off.2. A story will made up.3. An idea was putted forward for discuHas the book been give bau yet?bank loan will be payedve yeaNothing can be hold agaur allies will be lend suas never heardwas being knocked down by a bus.10. She was letted off with aThe candle was blow out by the draught.12. Tal were locked uThe flood water was be kept back by baTvwill made up for bTust have been being left behind.16. The old cinema is being pull dowTbeing held back blThe road was blockingTle were laid off last week.20. Your jacket can be hanged up ovPeriod 3: A sample lesson plan for Using Language(ANDY— THE ANDROID)AimsTo discuss about ITTo write aabout ITTo read about androids or robotsProceduresI. Warming up by talking about ITWhat is Informalogy?Informalogy (IT)ation and communicalogy (ICT)logy requiredag. In particular the use of eluters and compuwavansmit, and retrievaanywhere, aII. Listening and writingTurn to page 21. Look aures and la conversation aboutddalogy or IT, discuss and write down in groups the advantages and disadvantages of each kind.III. Speaking and writingSuu and your partner are going to heluur school. Now talk aboual things eauter can do and write aur 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 exandun you could have! ExAndy—The Androidpart of a football teaa year, get toglay a football game, be as…as…, in fat, look like…ball team, run falike a human, shout to…uter language, have a gooda goal, gd place, wlace, have a new kind of prograve one’s intelligate a blay against a human team, in a way, program…with…, make up…, after all, wlp of…V. Writing a luu are an android. What would say to a spoiled child who would not dwork? Write a lboy. AndroidAn android is an artificially created being thatresembles a human being. The word derivGreek Andr- ‘man, human’ and the suffix -eides used to mean ‘d, alike’ (from eidos ‘species’).The word droid, a robar Wars univderivedaningle maintain thalogically, the word android meabling a male human and that a robbling a woman should logically be called a gynoid for sexist language to be avoided; howevwordly used.Unlbot (a mechanical being) and cyborg (a being that is partly organic and partly mechanical), the word android has been used in literature anddia to dveral dds of man-made, autonomous creations:a robot that closely resembles a humana cyborg that closely resembles a humanan artificially createdarily organic, being that closely resembles a humanAlthougally humalogdealworking robascinadeveloping robots that caan be foundallassimilaw: simulacra (devices that exhibit likeness) and automata (devices that have independence).Tandroid waused by the French author Mathias Villiers de l'Isle-Adam (1838-1889)work Tomorrow’sEve, featuring a man-made human-like robot named Hadaly. As said b“In this age of Realien advawho knows what gdblanical dolls.” 找教案http://zhaojiaoaPart Tw Teaching Resources (第二部分：教学资源): A text structure analWHO AM I?I. Type of writing and summary of WHO AM I?Type of writingThis is aarrative writing.Main ideaassageBeginning as just a calculatingma</st1:country-reguter has been exg improvement again and over again over 300yeawhich haly madbeautiful and intelligent but also changed man’s life a great deal!TaragraphI began as a calculating ma France → an Analytical Ma22 → a “universal machine.”→a large room → made smaller and smaller → getting new tra0s→ clever and qu icker → a netwarly 1960s → talking to humans using BASIarly 1960s → brougle’0s → IIII.A retold vxt WHO AM I?Iuter, was a calculating ma. Then I was built as anAnalytical Ma22, which was a technological revolution. I became a “universal machine”lve any mathematical problem. I was not very big aI became huga large room before I was made smaller and smaller. Getting new tra0s I became clever and quicker. I wad wuters and turned out to part of a netwarly 1960s. Then I began talking to humans using BASIarly 1960s. In 1970s I was brougle’and came the I2: Background informautersI. How Do Computers Work?Computer BasicsTo accomplish a task using a computer, you need a combinaardwaware, and input.Hardwadevices, lulboarduse and speakers. Inside your compuabardware, includingboard, where you would find the magat make ualg unit (CPU). The hardwaandvware, andaalculawaame givgrams that you installuaactivities. Tatingware, such as the Appla MaWindowWindowa PC. Talso applicaware, lgames we plals we uldo math problu providut. When you type a command or click on au are tellinguter what to do. That is called input.How They Work TogetherFu provide input when you tuuter. Tware tells the CPU to start up certain programs and to tuardware devat they are readuu. This wholalled booting up.The nexappens when youa program you want to use. You cla command to stagram. Let’s uxample of an Ibrowgram has startedadur instruuan address (called a URL, which stands for Uniform Resource Locator), or click on an address you’ve saved already.Iauter now knows what you wado. The browwagoes oud that addarting uardware devices, such as a modem, wdIabldaddbrowser willll your compudaweb page ovwable to your computer. Eventually, youwebu were looking for.If you decide you waage, you clAgain, you have provided input to telluter what to do. The browware dwu have aattached to your computer, and wurned on. It may remind you to tudation about the web pagur computer ovablwd out.II. Televld portable televisionA television (also TV or telly) is a device (tool) with aat receives broadcast signals and tuures andsound. The word “television”words tele (Gar away) and vision (seeing).Usually a TV looks like a box. Older TVs had large wooden frames and saloor like furniture. Newer TVs became smalluldlvven portable so you could take it with you wherever you went. The smallest TVs caur hand. The largest TVs can take up a whole wall in your house, and malbe just a large flaat can be mountedwall. Many TVs are now made in widape like movie theaather than oldquare TVs.A television has an antenna (or aerial)as a cable. This ggnalaable provider. TVs can also show movDVD plaVCRs. TVs can bduters and gales, usually through a kindalled “SCART”.III. Web or World Wide WebThe World Wide WebaIat contains web sites and web pages. Iused to describe WebPages that are used offline wvices are not availabluter network exists - such as Wikipedia on CD. Iaal physical site exan the place wuBlog and Wiki capabilities will also not be available becauquire a communication wuters. IV. RadioRadio is a communicavThough originally usedunicate between two peoplw used to lusic, news, and people talking. Radio shows wdTV programs. V. DVDDVDly stands for “digital versatile disk”. It can play video thaa higher quality than a VHS tape. VI. Two kinds of DVDThey can also hold 4.7 GBation ad00 MB that a CD can hold. A plus of using a DVD for a vidabilave interactive menus and bonus features such as deletedandaries. VII. EmailEmail (elail) is a message, usually texIuser to aail is quan snail mail(mail) when sending over long distances and is usuallTo sendve an email, a computer with a modem and telephone ldIand an email program are required. Email addresses are generally formated l: login@server.(g or </st1:country-reg)anies let you send and receive emaila website. Gmail, Hotmail and Yahoo! dVIII. HumanHere are two humans. A maleft and a womaght. A human or human being is alike you. A male human is a man, a female human is a woman. If you think about all humawhole world, they are called humanity. In thepale have also used man and mankind to mean all humans. Humans are called Homo sapiens bHumans are an animalat belonggroup called primaare primabualle are gorillas and chimpaat chimpanzees and humans caaaby what is called evoluanimals evlike humans than chimpalived too, but they are now extinct. Human rights ags that everyone deserves and the wauld be treated bl: Words and exUuan area of grassland wwhich all people ause or alandational use in an urban area (常用于专有名词中): Every Saturday Jean went ridingvillagHarlowvery beautiful in winter.哈洛公园在冬天时风景很美。
【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。
高中英语 unit3《computers》学案1 新人教版必修2
Unit 3 Computers 学习目标与要求Scanning:TimelineGo through the text quickly to find some information and fill in the form.So in which order is the text organized? (time order)True or False:1. Alan Turing built an Analytical Machine to solve any mathematical problems.2. People began to realize that the computer got cleverer and quicker withtime passing.3. The computer began to serve the human race since it was brought into people’s homes.4. Since the 1970s, the computer was used by people around the world through the Internet.5. The larger the computer is, the more memory it has.(F T F T F)Step3 ComprehendingTask 1. Choose the best answers according to the text:1. What’s the main idea of the text? (D)A. The computer wants to find “who he is”.B. The functional change of the computer.C. The computer becomes popular around the world.D. The history of the computer.2. What can you infer from the text? (B)A. The computer has artificial intelligence.B. The computer changes a lot over the years.C. The computer was not connected by a network until in the early 1960s.D. Now the computer can only be used to deal with information.。
高级中学高中英语(人教版)必修二学案：Unit 3 Computers教学案
必修Ⅱ Unit 3 Computers 教学案班级姓名小组号【学习目标】1.学生利用早读以及课下时间自学单词，能够熟练读出背出本单元考纲词汇及短语。
2.学生背诵并且能够默写出课标词汇及其相关拓展。
【重点难点】1.重点：熟练记忆课本词汇及相关短语。
2.难点：能运用所学单词和短语写出正确的句子。
【学情分析】学生通过自主学习和小组讨论能够总结出词汇的相关用法，在做题过程中发现并解决一些易出错的语法细节。
【导学流程】自主学习内容一回顾旧知application n. 应用；用途；申请be considered ；As time went by .........二基础知识感知：She programs us with all the possible moves she has seen while watching human games. “while watching human games”为时间状语从句的省略形式，补充完整为while she is watching human games。
他做作业时睡着了。
He fell asleep __________________________________________.三.探究问题I would really like to play against a human team, for I have been programmed to act just like them.(教材P23)for是并列连词，表示“因为”，放在句中，用逗号与前面隔开。
我不想去购物，因为现在正下雨呢。
I don't want to go shopping，__________________________________________.四、基础知识拓展give back 归还；返回；恢复give away 捐赠；赠送；分送；颁发；泄露；暴露give in 呈交；屈服；让步give out 分发；耗尽；公布，宣布；发出(光、热或信号)give up 放弃；投降give way to 让……先行；被……代替与迁移：请及时记录自主学习过程中的疑难：小组讨论问题预设:(1)in a way＝in one way在某种程度上(2)相关短语：in the/one's way 妨碍；挡道in this/that way 用这种/那种方式in no way 绝不on the/one's way 在路上；即将到来by the way 顺便说/问一下①The rainy weather helped me in___________way, which gave me a good excuse to refuse to go to this party or that.②There was a big truck in___________ way.提问展示问题预设：课文中的知识点及重难点词汇短语课堂训练问题预设：①The headmaster____________________the prizes at the school sports day.校长在校运动会那天颁发了奖项。
高一人教课标必修2unit3-computers全单元的教案
高一人教课标必修2unit3-computers全单元的教案Period 1 ReadingThe General Idea of This Period：This period includes Warming up，Reading and Comprehending of Unit 3.It introduces the history and development of computers.From this period the students will learn more about computers.Meanwhile they can learn some reading strategies such as skimming and scanning.Teaching Aims：1.Train the students’ reading ability.2.Learn some useful words and expressions.3.Learn more about computers.Teaching Important Points：1.Help the students to understand the passage better.2.Learn how to use some important words and phrases in this passage.Teaching Difficult Points：1.How to help the students improve their reading ability and understand the passagebetter.2.Learn how to use some important words and phrases in this passage.Teaching Methods：1.Skimming the passage to get the general idea of the text.2.Scanning to get the details from the passage.3.Explanations and practice to help the students master some language points.4.Discussion to help the students understand better what they’ve learned and to use the knowledge they’ve learned in this period.Teaching Aids：1.A tape recorder.2.A multimedia.Teaching Procedures：Step 1 Warming up1.Greeting the students as usual.2.Introduce the topic of computersShow the five pictures （an abacus，a hugecomputer，a calculator，a PC，a notebook computer）and get the students name them in English.Through this task，st udents can have a general idea about what they are going to learn.Besides，students are expected to have a discussion about what they have in common while looking at them.And they are required to use the given expressions in their discussion to express their ideas.T：B oys and girls，today I am going to introduce some machines to you.Now let’s see whether you can name them in English correctly，and talk about them.Now work together with your partners and try to find out what they have in common.Two minutes late，five students are asked to talk about them in class.S1：An abacus is an old calculating machine used in China until now.S2：A huge computer is built to solve some mathematical pro blems.But，in my opinion，it is too big.S3：A calculator is a new calculating machine which can solve a large number mathematical problems.And I think it is very convenient to carry and use，so we ofte n use it.S4：A PC is a personal computer，which can solve all kinds of problems and is widely used in offices，schools，shops，at homes，etc.now.S5：A notebook computer is a kind of useful computer which can be taken conveniently like a notebook.But I think it is too expensive.T：Quite good.It seems that you are all quite familiar with these machines.But can you tell what they have in common?Any volunteers?S6：Let me try.I think they all calculate something.They can deal with some mathsproblems.S7：I believe that they are our good friends.With their help we can finish our work quickly.S8：The 21th century is the century of information technology.As middle school students，we should try to learn how to use computers.T：Well，your opinions are all right.Indeed，these machines all can calculate something.What’s more，from the abacus to the notebook computer，there is a long way.But now computers have already changed our lives greatly.But do you know more about computers and can you say something about how com puters have changed our lives.Step 2 Pre-readingShow the questions on the screen.T：Now，please have a discussion first，and then I’ll ask some students to report your work.After a few minutes.T：Now，who would like to answer the firstquestion?Voluntee r!S9：I’ll have a try.I know that computers have developed from large machines.They have been made smaller and smaller，but work faster and faster.I really can’t imagine what they will be like and wh ether they can take the place of human beings in the future.T：Yes，this is really a big problem.I think you are all interested in computers，you may go on studying computers，and perhaps one day you will design your own computers and become the masters of computers.OK!Next question!S10：I think computers have changed our lives greatly.We use computers widely in our study，in our work.You are using the computer to teach us English，aren’t you?S11：In my opinion，in the modern society，using the computers means grasping a tool of controlling the world.We may communicate with each other from a very long distance.In short，we can not live freely without them.T：I agree with you.The computers arebecoming more and more important in our lives.But learning more about computers is also importa nt，isn’t it?OK，let’s come to the reading passage “Who am I”.Step 3 ReadingTask 1.Skim the passage for the general idea.T：Boys and girls，you will be given two minutes to skim the passage and try to find out who “I”am and get the general idea of this pa ssage.After two minutes.T：Time is up.Who would like to tell us who “I”am and give the general idea of the text to the class?Volunteer!S12：Of course，“I”am the computer.The passage is mainly about the history and development of computers.S13：The passage is also about the relationship of computers and humans.Task 2.Scan for the details.T：Boys and girls，you will be given twomore minutes to scan the passage and try to find out the answers to the following questions.Let’s see who can find out the answers most quickly and correctly.1.Where were you in 1642?2.What happened to you in 1822?3.What were you called in 1936?4.What did you get in the 1960s?5.What happened to you in the 1970s?T：Have you finished?S14：I have.I was in France as a calculating machine in 1642.In 1822，I was built as an Analytical Machine by Charles Babbage.I was called “a universal machine”in 1936，as I could solve any mathematical problem.In the 1960s，I was given a family connected by a network，so that I could share information with others and we could talk to each other.In the 1970s，I was brought into people’s homes.T：You are so quick-minded that in such a short time you could find out all the answers to the questions.Your mind really works like a computer!Step 4 ComprehendingTask 3.Fill in the timeline to remember the facts.T：But can you memorize facts like a computer?I am afraid you can not.But let’s try to remember the facts in the passage by filing in the timeline on Page 19，which，I am sure，will help you remember the facts easily.Suggested answers：Timeline1642：The computer began a s 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 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 together.T：Have you finished?If so，please check your answers yourself.I’m sure all of you have got them right.Now you can retell the history of computers easily with the help of the timeline，can’t you?Please have a try，boys and girls!Step 5 Homework1.Recite the key sentences.2.Prepare for Learning About Language.3.Try to retell the text using about 100 words.Step 6 The Design of the Writing on the BlackboardUnit 3 ComputersPeriod 1The general idea of the text：Questions1.Where were you in 1642?2.What happened to you in 1822?3.What were you called in 1936?4.What did you get in the 1960s?5.What happened to you in the 1970s?Language points：1.in common/have... in common （with）...2.in one’s opinion3.deal with4.simple-minded5.“as”and “with”6.“There were times when... ”Step 7 Record after TeachingPeriod 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 Voice.Teaching Aims：1.Help 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.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.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，wro te a book to describe how computers could be made to work and built a “universal machine”to solve any mathematical ter，people discoveredthe 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?Volunteers!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：ne twork so that went by totally truly simple-minded Anyway deal with Task 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 Igave 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 yo ur answers with your partners.And last seven students will be asked toreport 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 conne ct 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 VoiceT：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 pa ssive 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 passi ve voice.Task 1T：Please turn to P age 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 Inter net.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.Your task is to decide what things have been decidedfor 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 3 T：Now，pleas e 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 Homework21T：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 o n the BlackboardUnit 3 Computers Period 2The Present Perfect Passive Voice 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. Structure： “subject+have/has been done+object” Step 6 Record after TeachingPeriod 3 Extensive Reading22The General Idea of This Period： This perio d includes revision of the text， Reading and speaking on Page 22、Reading task on Page 58.In this period the students will be involved in a speaking activity about designing an android after reading the story of Andy，an d learn something about the performances of a sporting robot of the 22nd century，Hua Fei in 78th Olympics and 79th Olympics，so that the students will not only improve their reading and speaking，but also their creative thinking. Teaching Aims： 1.Help the students to learn about the different ways of designing the robots and give their opinions to the class. 2.Enable the students to discuss to design their own robots. Talk about the different ways of designing the robots. Teaching Important and Difficult Points： How to design their own robots and report their designing to the class.23Teaching Methods： 1.Task-based learning. 2.Cooperative learning. Teaching Aids： 1.A tape recor der. 2.A multimedia. Teaching Procedures： Step 1 Greetings Step 2 Reading （1） We’ve learned a lot about computers，but can you imagine that computers could be put into androids or robots.Think of the fun you c ould have!Now let’s first read the passage about a robot called Andy—what it looks like and what it can do on Page 22，and then we’ll have a des igning competition to see who will design the best robots. The students read the passage fo r several minutes. T：A few simple questions for you.What does Andy look like? What can it do?24S2：Andy looks like a human.It is designed to play football games and can move and think like a human.Andy is really smart.T：I agree with you.Are you eager to design your smart robots?Now in small groups discuss how to design your own androids ， draw a picture of your androids and write down your design.You may refer to 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? T：And don’t forget to use the following expressions in your discussion. I think that In my opinion... What is your reason? I have decided that... After several minutes. T：Now，I’ll check your work.One from25each group will show your picture of the android you have designed and tell the class your design.And we’ll see which group has designed the best android.Who would like to try first?S3：Look here.This is the picture of the robot we’ve designed.What does it look like?Yes，it looks like a dog.We all like dogs very much.Every morning it will wake us up so that we will not be late for school.Then it will company us to school and carry our heavy bags.You know how heavy our bags are!In the evening，after a whole day’s hard work，it will play beautiful music to help us relax.Maybe it will cost at least 2000 yuan，but we don’t think it is too expensive to have such a good friend.S4：Well，we’d like to design our robot in this way.We would like it to look like the famous footballer Beckham who serves as a striker on the football team.It has the most advanced program ， so it can move and think like Beckham，and of course can shoot good goals26like him.We would like it to enter the nextElectronic World Cup，and we are sure that itwill win the cup!T ： Your designs are very unusual andsmart.I really want to go on appreciating yourdesigns，but time is limited.Will you put up yourpic tures of the robots you have designed withinstructions on the back wall，and then decidewhich group has designed the best androidsafter comparison?Step 3 Reading （2） Class，let’s come to the Reading Task onPage 58.First read the passage quickly and thenfill in the chart of Exercise 1 and keep a recordof his performances of the sporting robot of the22nd century，Hua Fei in 78th Olympics and79th Olympics.After doing it individual ly ，please check your answers with your partners，and then we will check the answers in class.Suggested answersRECORD CARDHUA FEIAbilityHigh flying exercises27Performance in 78th OlympicsWonderful turns， dives，circles anddancesPrize wonSilver medalPerformance in 79th OlympicsBegan very well but failed through on fault of his ownReason for failureParachute failed to openTreatmentTwo new legs and a new headStep 4 Homework T ： It’s almost time for a break.Nowhomework for you today.pare the designs of the androids ofeach group and try to decide which one is thebest.2.Suppose you have been lucky enough tobe allowed to interview Hua Fei in hospital foryour school paper.Work out some questions together with your partner，and then intervieweach other.28Step 5 The Design of the Writing on theBlackboardComputersUnit 3Period 3TimeEvents16421822 19361960s1960s1970sNow29Reference for your design of the androids：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?RECORD CARDHUA FEIAbilityPerformance in 78th OlympicsHigh flying exercises Wonderful turns， dives，circles anddancesPrize wonSilve r medalBegan very well but Performance in 79thfailed through on Olympicsfault of his ownReason for failureParachute failed to open30TreatmentTwo new legs and a new headStep 6 Record after TeachingPeriod 4 ListeningThe General Idea of This Period： This period includes listening and writing on Page 21；listening on Page 55 and listening task on Page 58.Apparently，the purpose of this period is to train the students’ listening—for information ； for comprehension and for language.Meanwhile ， the students will be trained to express their own opinions after listening. Teaching Aims：311.Help the students to learn about the knowledge of information technology.2.Enable the students to get the main ideas of the listening materials.Teaching Important and Difficult Points： 1.How to get the main idea and information in details. 2.Express their own opinions after listening. Teaching Methods： 1.Task-based learning. 2.Cooperative learning. Teaching Aids： 1.A tape recorder. 2.A multimedia. Teaching Procedures： Step 1 Revision Check the students’ interviews. Get the students to work together with their partners to interview each other. Step 2 Listening and writing （Page 21） Task 1 Listen to a conversation T：Class，as we all know，the 21st century32is the century of information andtechnology.Next we will listen to a conversationabout differe nt kinds of information technologyor IT.And as we know，each kind of informationtechnology has its own advantages anddisadvantages.So from this conversation we willlisten for the advantages and disadvantages ofeach one.But before listening let’s first look atthe pictures on Page 21 and the form on Page 22to make sure what you are going to do whilelistening.OK，let’s begin.The students listen to the conversation forthe first time.Task 2 Discussion and fillingT：You can see there are a TV，a CD-ROM，a computer，a radio，a DVD and newspaperhere.Now try to finish filling in the form withthe information you have just got from theconversation.Suggested answers：Type of IT Advantages DisadvantagesTVYou can both You can’t write33listen andto friendswatchYou can findIt’s veryWebinformation expensiveRadioYou can listen You can notto EnglishwatchBookYou can get Sometimes it is information out-of-dateT：Now，let’s discuss the advantages anddisadvantages of each type of IT in small groupsand then decide which type of IT is best for youto use，according to the form above and explainthe reasons.While discussing，remember to usethe following expressions：I think that...In my opinio n...I believe that...I agree because...I disagree because...I’ve decided that...Step 3 Listening （Page 55） T ： Now come to the listening on Page3455.Before you listening ， please read therequirements of Ex.1.After that，you will find thethree robots from the pictures above on Page 55and num ber them.The possible number：Picture 1—No.3 Picture 3—No.2 Picture4—No.1T：Now please look at these boxes on Page55 before you listen to the tape again，and try tofind out the listening points.Pay more attentionto the se points and you may make some noteswhile listening.Three minutes later.T：Now try to fill in the boxes with theinformation from the listening material，andthen check your answers with your partners.Suggested answers：Personal robotInformationSize35 cmWhat it looks l ike Robot with five armsWhat it can doAll homeworkPrice50 yuan a day35Bird-like android SizeWhat it looks like What it can do PriceInformation 10 cmBird-like android Sings beautifully600 yuanLonely androidInformationSize2mWhat it looks like What it can doLarge，energetic robot Climbs mountains； plays guitar；singskaraokeTelephone numberRoom-1234Step 4 Listening task （Page 58）T：Now please turn to Page 58，and finishthe listening task. As we know，computers are used widelyand put into androids.Please look at the picturesabove.There are two androids in it.One works asa maid.The other works in a car factory.Theyare friends and they were made at the same36ti me.Now they are talking about their lives andwhat it feels like to be android.OK，please listencarefully to their problems and fill in theform.I’ ll play the tape twice.After listening.T：Try to fill in the forms as quickly as youcan，and then we will check the answers in class.Suggested answersSally and Brenda’s problemsAbout their jobsTheir programmer decided themAbout changing their They are not able tojobschange jobsAbout who decides Their programmertheir futuredoesAbout how they are They can not smell，different from people laugh，taste，or eat foodAbout how they are the same as peopleThey enjoy footballT：From what we have just listened，weknow that Sally and Brenda have some troublesin their lives.They are treated badly.Now you37are going to make a list of the rights that androids should have so that they will be treated better.You can work with your partners and have discussion.Suggested an swers： 1.They should be able to choose the work they do. 2.They should have their own time. 3.They should be able to change their jobs. 4.They should be able to decide their own future. 5.They should be able to taste，smell，feel， etc. Step 5 Assignment T：Class，I really appreciate your good performance in this listening class.I can see that your listening has greatly improved since you came to the senior school.Keep on your good work!OK，we have no time left.I’d like to assign you some homework to do. 1.Go over the listening and writing on Page 21 and get ready for the writing.38Step 6 The Design of the Writing on the BlackboardUnit 3 Computers Period 4Type of IT Advantages DisadvantagesYou can’tYou can bothTVwrite tolisten and watch.friends.You can findIt’s veryWebinformation. expensive.RadioYou can listen to You can notEnglish.watch.BookYou can get Sometimes it information. is out-of-date.Personal robot SizeWhat it looks like What it can do PriceInformation 35 cmRobot with five arms All homework 50 yuan a day39Bird-like android SizeWhat it looks like What it can do PriceInformation 10 cmBird-like android Sings beautifully600 yuanLonely androidInformationSize2mWhat it looks like Large， energetic robot Climbs mountains；playsWhat it can do guitar；sings karaokeTelephone numberRoom-1234Step 7 Record after TeachingPeriod 5 WritingThe General Idea of This Period：40。
【人教版】高中英语必修二：教案全套Unit 3 Computers 教案(精修版)
人教版英语精品资料（精修版）Unit 3 ComputersI. 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.。
人教英语新课标必修2全册精品教案( Unit 3 Computer)
人教英语新课标必修2全册精品教案( Unit 3 Computer)Unit3computerPartone:TeachingDesignPeriod1:Asamplel essonplanforreadingAimsTotalkaboutcomputerToreadabo utcomputerProceduresI.warmingupwarmingupbytalkingab outcomputerLookatthepicturesonpage17.whatarethey?wh atdotheyhaveincommon?yes,theyarecomputers.Thenwhati sacomputer?Acomputerisamachinewhichstoresknowledgei nitsmemoryanddoescalculationsonthatknowledge.Thiskn owledgeisstoredinsymbols;itiscalleddata.Acomputerus uallyhasamonitortoshowresults.However,somecomputers canspeak;thesecomputerscanbeusedforvoicemail.计算机室Acomputerfrequentlyrequiresabootdevice.Thebootdevic econtainsthecomputer’puterprogramscanbeinstal ledontoacomputer.Somepeoplethinkthatcomputersareles susefuliftheydonothaveaccesstotheInternet.Theythink thisbecausetheInternetallowsthecomputerstosendandre ceivedataandemailacrosstheworld.曙光3000巨型计算机Acomputerisnowalmostalwaysanelectronicdevice.Itusua llycontainsmaterialswhicharetoxic;thesematerialswil lbecometoxicwastewhendisposedof.whenanewcomputerisp urchasedinsomeplaces,lawsrequirethatthecostofitswas temanagementmustalsobepaidfor.Thisiscalledproductst ewardship.Insomecountriesoldcomputersarerecycledtog etgoldandothermetals.Thisisdangerous,becausethispro p utersbecomeobsoletequickly.Veryoftentheyaregivenawa yandnewonesreplacethemwithintwoorthreeyears.Thismak puterrecyclingisthuscommon.man yprojectstrytosendworkingcomputerstodevelopingnatio nssotheycanbere-usedandwillnotbecomewasteasquickly. computerjargon计算机行话computerjargonmeanswordstodowithcomputersandsurroun dingtopics.knowingwhatthesewordsmeancanhelpyouknowm oreaboutcomputers.Somepeopleusethesewordstoimpresso therpeople.Examplesofjargon:Bit-Thesmallestdataunit ,caneitherbea“0.”ora “1.”.Byte-unitofdata.Seealsokilobyte,megabyte,Gig abyteandNibblecPU–centralProcessingUnit,AnothernameforprocessorData-InformationstoredonacomputerDisk-Aplacetostoredata.E edoftenincorrec tlytodescribethespeedofaprocessor.Butwithsome2.4GHz processorsfasterthan3.6GHzones,itisclearthatitisjus tasalesmantrick.Load-GetdatafromadiskNibble-HalfaBy teSave-PutdataonadiskRAm–random-accessmemory,B-UniversalS erialBus（通用串行总线，一种简化了插接多种附件的薄型插座）www-worldwideweb,partoftheInternetII.Pre-reading1.Q uestioningandanswering‑‑‑whatdoyo uknowaboutcomputer?●Electronicmachinecapableofperformingcalculationsand othermanipulationsofvarioustypesofdata,underthecont rolofastoredsetofinstructions.Themachineitselfisthe hardware;theinstructionsaretheprogramorsoftware.Dep endinguponsize,computersarecalledmainframes,minicom puters,andmicrocomputers.microcomputersincludedesk-topandportablepersonalcomputers.●Amulti-functionelectronicdevicethatcanexecuteinstru ctionstoperformatask.●Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolu nit,arithmeticandlogicalunits,andameansforinputando utput.●aprogrammablehardwarecomponentthatiscontrolledbyint ernallystoredprogramsandthatcanperformsubstantialco mputationswithouthumanintervention.Acomputertypical lyconsistsofoneormoreprocessingunits,memoryunits,an dassociatedperipheralinputandoutputdevices.●Relatedtoautomationandelectronicdataprocessing.TheL ibraryofcongresscommonlyclassesmostcomputer-related booksinHF5548,QA75-76,Z52,T385,andsomeTkranges.●amachineforperformingcalculationsautomaticallycalcu lator:anexpertatcalculation●Acomputerisadeviceormachineformakingcalculationsorc ontrollingoperationsthatareexpressibleinnumericalor putersareconstructedfromcomponentst hatperformsimplewell-definedfunctions.Thecomplexint eractionsofthesecomponentsendowcomputerswiththeabil itytoprocessinformation.Ifcorrectlyconfiguredacompu tercanbemadetorepresentsomeaspectofaproblemorpartof asystem.Ifacomputerconfiguredinthiswayisgive2.Discu ssingandsharing‑‑‑Howhavecomputerschangedourlives?Somedaysoon,ifyouhaven’talready,you’relikelytoplugintothecomputernetworknationgrowingin puterterminals,orsmallcomputersconnecte dviamodemtoordinarytelephonelines,shouldbeasubiquit ousasthetelephoneitself.They’reamuchmoreusefulandhumanetoolthanthephone,andwithc orporateAmericabehindthemthenetworkswillbeeverywher e----changingourlivesmorethananytechnologysincethea utomobile.joiningacomputernetworkisthesameasjoining acommunity.Smallsystemsarelikevillages,wherenewmemb ersareformallywelcomed.Thelargernetworks,theSourcea ndcompuServe,forexample,arecities-anonymous,fullofl ifeandevents,butdifficulttofitinto.III.Reading1.Lis teningandreadingtotherecordingofthetextwHoAmI?Turnt opage18andlistenandreadtotherecordingofthetext.Paya ttentiontothepauses,pronunciationandintonationofthe nativereader.2.Readingaloudandunderliningexpression sNowwearetoreadthetextonceagainandunderlinealltheex pressionsinthetext.Putthemdownintoyournotebookafter classashomework.collocationsfromwHoAmI?beginas…,ac alculatingmachine,bebuiltas…,followinstructionsfrom…,soundsimple,atthetime,atechnologicalrevolution, writeabook,make…work,solveproblems,becomehuge,hadartificialintellig ence,gobackto…,thesizeof…,goby,changesize,becomes mallandthin,getquick,standtherebyoneself,beconnecte dby…,shareinformationby…,talkto…,bring…into…,dealwith…,communicatewith…,servethehumanra ce3.Reading,identifyingandsettlingAttention,please! Itistimetoskimthetextonemoretimeandidentifythediffi cultsentences.Tryanalyzingthestructuresofthedifficu ltsentencesanddiscussthemamongyourgroupmembers.youm ayalsoputyourquestionstomeforhelp.chat（online）（在线）聊天Tochatistotalkaboutordinarythingsthatarenotveryimpo rtant.youcanchattoonepersonortomanypeople.Peopleals ousethiswordnowforpartsoftheInternetwherewecantalkw ually,youchat ontheinternetinachatroomormessagingservicelikeAoLIn stantmessenger,yahoomessenger,ormSNmessenger.4.Read ingandtransferringScanthetextforinformationtocomple tethetablebelow,describingthedevelopmentofcomputer. In1642In1822In1936In1960sIn1970sIV.closingdownbydoingcomprehendingexercisesTurntopage18andinpairsdothe comprehendingexercisesNo.1and2.Period2:Asamplelesso nplanforLearningaboutLanguageAimsTolearntouseThePre sentPerfectPassiveVoiceTodiscoverusefulwordsandexpr essionTodiscoverusefulstructuresProceduresI.warming upbyreadingtothetapeTobeginwith,turntopage18,listen ingtoandreadingtotherecordingofthetextwHoAmI?Attent iongoestothepausesandintonation,aswellasthepronunci ationofthereader.II.Discoveringusefulwordsandexpres sionsInpairsdotheexercises1,2and3onpages19and20.you mustfinishthemin10minutes.III.Learningaboutgrammar1 .PassiveVoice—overviewTenseormodelPassiveSentenceSimplePresentThe ToEFLexamisgiveneverysixmonths.SimplepastTheToEFLex amwasgivenlastmonth.SimpleFutureTheToEFLexamthisyea rwillbegivenonoctober15.PresentcontinuousTheToEFLex amisbeinggiveneveryyear.PresentperfectTheToEFLexamh asbeengiveneveryyearsince1950.PastperfectTheToEFLex amhadbeengivenbeforetheVietnamwaroccurred.Simplemod alTheToEFLexamshouldbegiventoeveryForeignstudent.Pa stmodalTheToEFLexamshouldhavebeengiventoalltoenterU Scolleges.2.ThePresentPerfectPassiveVoiceThestructureofThePresentPerfectPassiveVoiceis:have/has＋been ＋~edIV.ReadingaloudanddiscoveringNowgobacktopage18to readaloudanddiscoverinthetextexamplesofThePresentPe rfectPassiveVoice.Astheyearshavegoneby,Ihavebeenmad esmallerandsmaller.Sincethen,myfamilyandIhavebeenus edbybillionsofpeopletodealwithinformationwitheachot heraroundtheworldbytheInternet.V.Discoveringusefuls tructureweshalldogrammarexercises1,2and3onpage20.VI .closingdownbydoingaquizcorrectthemistakesinthesepa ssivevoicesentencesExample:Thehousewasbuildin1880.1.3000employeeswerelayingoff.2.Astorywillmadeup.3.Anideawasputtedforwardfordiscussion.4.Hasthebookbeengivebacktoyouyet?5.mybankloanwillbepayedoffinfiveyearstime.6.Nothingcanbeholdagainstme.7.ourallieswillbelendsupport.8.Shehasneverheardof.9.Shewasbeingknockeddownbyabus.10.Shewaslettedoffwithafine.11.Thecandlewasblowoutbythedraught.12.Thecriminalwerelockedup.13.Thefloodwaterwasbekeptbackbybarriers.14.Theinconveniencewillmadeupforbythismoney.15.Thekeysmusthavebeenbeingleftbehind.16.Theoldcinemaisbeingpulldown.17.Theprotestersbeingheldbackbythepolice.18.Theroadwasblockingoff.19.Thirtymorepeoplewerelaidofflastweek.20.yourjacketcanbehangedupoverthere.Period3:Asampleles sonplanforUsingLanguageAimsTodiscussaboutITTowritea reportaboutITToreadaboutandroidsorrobotsProceduresI .warmingupbytalkingaboutITwhatisInformationtechnolo gy?Informationtechnologyorinformationandcommunicati ontechnologyisthetechnologyrequiredforinformationpr ocessing.Inparticulartheuseofelectroniccomputersand computersoftwaretoconvert,store,protect,process,tra nsmit,andretrieveinformationfromanywhere,anytime.II .ListeningandwritingTurntopage21.Lookatthepicturesandlistentoaconversationaboutdiffe rentkindsofinformationtechnologyorIT,discussandwritedowningroupstheadvantagesanddisadvantagesofeachkin d.III.SpeakingandwritingSupposeyouandyourpartnerare goingtohelpchoosecomputersforyourschool.Nowtalkabou tthespecialthingseachofthecomputercandoandwritearep orttoyourheadmaster.IV.Reading,underliningandspeaki ngItissaidthatcomputerscouldbeputintoandroidsorrobo ts.ReadthetextAndy—TheAndroid,underliningalltheexpressionsandthinkofth efunyoucouldhave!ExpressionsfromAndy—TheAndroidpartofafootballteam,onceayear,gettogether ,playafootballgame,beas…as…,infat,looklike…,onthefootballteam,runfast,thi nklikeahuman,shoutto…,incomputerlanguage,haveagood shotforagoal,getsecondplace,winthefirstplace,havean ewkindofprogram,improveone’sintelligence,createabettersystem,playagainstahuman team,inaway,program…with…,makeup…,afterall,withthehelpof…V.writingaletterSupposeyouareanandroid.whatwouldsay toaspoiledchildwhowouldnotdohishomework?writealette rtotheboy.AndroidAnandroidisanartificiallycreatedbe ingthatresemblesahumanbeing.ThewordderivesfromGreekAndr-‘man,human’andthesuffix-eidesusedtomean ‘ofthespecies,kind,alike’.Theworddroid,arobotinth eStarwarsuniverse,isderivedfromthismeaning.Somepeop lemaintainthat,etymologically,thewordandroidmeansre semblingamalehumanandthatarobotresemblingawomanshou ldlogicallybecalledagynoidforsexistlanguagetobeavoi ded;however,thiswordisnotcommonlyused.Unliketheterm srobotandcyborg,thewordandroidhasbeenusedinliteratu reandothermediatodenoteseveraldifferentkindsofman-m ade,autonomouscreations:arobotthatcloselyresemblesa humanacyborgthatcloselyresemblesahumananartificiall ycreated,yetprimarilyorganic,beingthatcloselyresemb lesahumanAlthoughessentiallyhumanmorphologyisnotthe idealformforworkingrobots,thefascinationindevelopin grobotsthatcanmimicitcanbefoundhistoricallyintheass imilationoftwoconcepts:simulacraandautomata.Theterm androidwasfirstusedbytheFrenchauthormathiasVilliers del'Isle-AdaminhisworkTomorrow’sEve,featuringaman-madehuman-likerobotnamedHadaly.A ssaidbytheofficerinthestory,“InthisageofRealienadvancement,whoknowswhatgoesoni nthemindofthoseresponsibleforthesemechanicaldolls.”PartTwTeachingResourcesSection1:Atextstructureanaly sisofwHoAmI?I.TypeofwritingandsummaryofwHoAmI?Typeo fwritingThisisapieceofnarrativewriting.mainideaofth epassageBeginningasjustacalculatingmachinein1642inF rance,thecomputerhasbeenexperiencingimprovementagai nandoveragainover300yearsormore,whichhasnotonlymade itmorebeautifulandintelligentbutalsochangedman’slifeagreatdeal!Topicsentenceof1stparagraphIbeganas acalculatingmachinein1642inFrance.Topicsentenceof2n dparagraphNoonecouldrecognizemeafterIgotmynewtransi storsinthe1960s.II.Achainofeventsshowingthedevelopm entofcomputeracalculatingmachinein1642inFrance→anAnalyticalmachinein1822→a“universalmachine.”in1936→thesizeofalargeroom→madesmallerandsmaller→gettingnewtransistorsin1960s→cleverandquicker→anetworkintheearly1960s→talkingtohumansusingBASIcintheearly1960s→broughtintopeople’shomesin1970s→InternetIII.AretoldversionofthetextwHoAmI?I,thecomp uter,wasacalculatingmachinein1642inFrance.ThenIwasb uiltasanAnalyticalmachinein1822,whichwasatechnologicalrevolution.Ibecamea“universalmachine”in1936tosolveanymathematicalproblem.Iwasnotverybiga tfirstthenIbecamehuge,thesizeofalargeroombeforeIwasmadesmallerandsmaller.Gettingnewtransistorsin19 60sIbecamecleverandquicker.Iwasconnectedwithotherco mputersandturnedouttopartofanetworkintheearly1960s. ThenIbegantalkingtohumansusingBASIcintheearly1960s. In1970sIwasbroughtintopeople’shomes,andcametheInternet.Section2:Backgroundinform ationcomputersI.HowDocomputerswork?computerBasicsTo accomplishataskusingacomputer,youneedacombinationof hardware,software,andinput.Hardwareconsistsofdevice s,likethecomputeritself,themonitor,keyboard,printer ,mouseandspeakers.Insideyourcomputertherearemorebit sofhardware,includingthemotherboard,whereyouwouldfi ndthemainprocessingchipsthatmakeupthecentralprocess ingunit.Thehardwareprocessesthecommandsitreceivesfr omthesoftware,andperformstasksorcalculations.Softwa reisthenamegiventotheprogramsthatyouinstallonthecom putertoperformcertaintypesofactivities.Thereisopera tingsystemsoftware,suchastheAppleoSforamacintosh,orwindows95orwindows98foraPc.Thereisalsoapplicationso ftware,likethegamesweplayorthetoolsweusetocomposele ttersordomathproblems.youprovidetheinput.whenyoutyp eacommandorclickonanicon,youaretellingthecomputerwh attodo.Thatiscalledinput.HowTheyworkTogetherFirst,y ouprovideinputwhenyouturnonthecomputer.Thenthesyste msoftwaretellsthecPUtostartupcertainprogramsandtotu rnonsomehardwaredevicessothattheyarereadyformoreinp utfromyou.Thiswholeprocessiscalledbootingup.Thenext stephappenswhenyouchooseaprogramyouwanttouse.youcli ckontheiconorenteracommandtostarttheprogram.Let’susetheexampleofanInternetbrowser.oncetheprogramhas started,itisreadyforyourinstructions.youeitherenter anaddress,orclickonanaddressyou’vesavedalready.Ineithercase,thecomputernowknowswhat youwantittodo.Thebrowsersoftwarethengoesouttofindth ataddress,startingupotherhardwaredevices,suchasamod em,whenitneedsthem.Ifitisabletofindthecorrectaddres s,thebrowserwillthentellyourcomputertosendtheinform ationfromthewebpageoverthephonewireorcabletoyourcom puter.Eventually,youseethewebsiteyouwerelookingfor. Ifyoudecideyouwanttoprintthepage,youclickontheprintericon.Again,youhaveprovidedinputtotellthecomputerw hattodo.Thebrowsersoftwaredetermineswhetheryouhavea printerattachedtoyourcomputer,andwhetheritisturnedo n.Itmayremindyoutoturnontheprinter,thensendtheinfor mationaboutthewebpagefromyourcomputeroverthecableto theprinter,whereitisprintedout.II.Televisionoldport abletelevisionAtelevisionisadevicewithascreenthatre ceivesbroadcastsignalsandturnsthemintopicturesandso und.Theword“television”uallyaTVlookslikea box.olderTVshadlargewoodenframesandsatonthefloorlik efurniture.NewerTVsbecamesmallersotheycouldfitonshe lves,orevenportablesoyoucouldtakeitwithyouwherevery ouwent.ThesmallestTVscanfitinyourhand.ThelargestTVs cantakeupawholewallinyourhouse,andmaysitonthefloor, orbejustalargeflatscreenthatcanbemountedonthewall.m anyTVsarenowmadeinwidescreenshapelikemovietheatresc reens,ratherthanold,moresquareTVs.Atelevisionhasana ntenna,orithasacable.Thisgetsthesignalfromtheair,or scanalsoshowmoviesfromDVDplayersorV scanbeconnectedtocomputersandgameconsoles,usu allythroughakindofsocketcalled“ScART”.III.weborworldwidewebTheworldwidewebisthe partoftheInternetthatcontainswebsitesandwebpages.It isnotusedtodescribewebPagesthatareusedofflinewheren etservicesarenotavailable,ornocomputernetworkexists -suchaswikipediaoncD.Inthiscasenorealphysicalsiteex istsotherthantheplacewherethecomputeris.Blogandwiki capabilitieswillalsonotbeavailablebecausetheserequi reacommunicationwithothercomputers.IV.RadioRadioisa communicationsinvention.Thoughoriginallyusedtocommu nicatebetweentwopeople,itisnowusedtolistentomusic,n ews,andpeopletalking.Radioshowswerethepredecessorto TVprograms.V.DVDDVDmostcommonlystandsfor “digitalversatiledisk”.Itcanplayvideothatisofahig herqualitythanaVHStape.VI.TwokindsofDVDTheycanalsoh old4.7GBofinformationasopposedtothe700mBthatacDcanh old.AplusofusingaDVDforavideoistheabilitytohaveinte ractivemenusandbonusfeaturessuchasdeletedscenesandc ommentaries.VII.EmailEmailisamessage,usuallytext,se ntfromoneInternetusertoanother.Emailisquickerthansn ailmailwhensendingoverlongdistancesandisusuallyfree .Tosendorreceiveanemail,acomputerwithamodemandtelep honelineconnectedtotheInternet,andanemailprogramarerequired.Emailaddressesaregenerallyformatedlikethis :login@server..Somecompaniesletyousendandreceiveema ilforfreefromawebsite.Gmail,Hotmailandyahoo!dothis. VIII.HumanHerearetwohumans.Amanisontheleftandawoman isontheright.Ahumanorhumanbeingisaperson,likeyou.Am alehumanisaman,afemalehumanisawoman.Ifyouthinkabout allhumansinthewholeworld,theyarecalledhumanity.Inth epast,peoplehavealsousedmanandmankindtomeanallhuman s.HumansarecalledHomosapiensbyscientists.Humansarea nanimalspeciesthatbelongstothegroupcalledprimates.m onkeysareprimatestoo,buttheprimatesmostlikepeoplear egorillasandchimpanzees.mostscientiststhinkthatchim panzeesandhumanscamefromacommonancestorbywhatiscall edevolution.otheranimalsevenmorelikehumansthanchimp anzeesoncelivedtoo,buttheyarenowextinct.Humanrights arethosethingsthateveryonedeservesandthewaytheyshou ldbetreatedbyotherpeople.Section3:wordsandexpressio nsfromUnit3computerscommonn..anareaofgrasslandwithnofenceswhichallpeopleare freetouseorapieceofopenlandforrecreationaluseinanur banarea:EverySaturdayjeanwentridingonthevillagecommon.Harlowcommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。
高一英语必修2Unit3Computers全单元教案
高一英语必修2Unit3Computers全单元教案人教版高一英语必修2 Unit3 Computers全单元教案Unit 3 Computers Period 1: Listening & Speaking GOALS: 1. To practise listening comprehension. 2.To practise making decisions and reasoning TEACHING PROCEDURES: Step1. revision 1. 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-in As 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: Afterlistening to their talk, we know all kinds of IT have both disadvantages and advantages．Let’s check the answers together. Type of IT Advantages Disadvantages TV 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 expression_r_rs. I think that.... In my opinion, . (I)believe that…. I agree because…. I disagree because…. I’ve decided that…. 2) (group work): Discussion : Comp uters 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. Speaking 1. Pre-speaking Say: 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-speaking 1) 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 strengthen students’ ability of use it.) Supporting an opinion Challenging an opinion I think that … , because … Perhaps, but what if / about …? First, … Have you thoughtabout …? 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 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-speaking Conclusion—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. Homework Page 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-in Show 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 readingpassage’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 blanks The 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 Speaking Tell the students that we already have many different kinds of androids i。
人教版高中英语必修2 Unit 3 Computers第一课时教案
人教版高中英语必修2 Unit 3 Computers第一课时教案Period One Intensive ReadingTeaching Goals：1. Target Languagea. The Key Words and Phrasessimplify logically technological revolution solve from…on personalas a result totally so…that network Web application explore anyhow human raceb. T he Key SentencesOver 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!2. Ability Goals：Enable students to learn about the development and history of computers.Teaching Important & Difficult Points：Understand how details are used to support topic sentences.Teaching Methods:Prediction, scanning and discussion.Teaching Procedures & WaysStep I Warming-upT: How many of you have computers in your home? Please put up your hands.Ss :respond accordingly.T: What do you usually do on your computers?Ss:Type documents/homework, listen to music, watch videos, play games, search on the Internet, send mails …T: When I were at your age, I knew nothing about computers. Most Chinese families never heard about it. However, in recent years, computers have become more and more popular, and most families in cities have one or more than one computer in their home. And some families in villages also have their own computers. Computers make life more convenient and colorful. However, it took a long time for humans to have computers that we see today. Now look at the pictures on page 17 and discuss what they have in common. Then think about Questions 2 & 3.Suggested answers:1.These pictures are all technological inventions.2.From these pictures, we know computers have experienced a long development process,and the development will never stop.3.(There may be various answers.)Step II Pre-readingPrediction: Let students predict the content of the passage according to the pictures and the title. This will involve students in active thinking and exploring.Then let them make a list of the ways computers are used today.Sample list: date processing; industrial design; learning and teaching aids; TV program editing; entertainment (watch TV/video, listen to music, play games, online chat…) communication (e-mail, e-card, instant message) …T: Now look at the inventions in activity 3. First check their meanings in your dictionaries. Then put them in the order according to the time when they appeared.Help students understand the meanings of the words: analytical, calculate and universal. Note:Universal machine is also known as Alan Turing's “universal computing machine”, is capable of computing any algorithm.Students may have different answers. They will check it after reading the passage.T: Have you put them in the right order? You will find it after reading the passage. Now turn to page 18 please.Step III ReadingSkimmingGet students read the whole passage and try to get the main idea of it.After readingT: What does “I” in the title refer to?Ss: Computer.T: What is the main idea of the passage?Ss: The passage is mainly about the history and development of computers.ScanningT: Correct! Now read the passage and finish the timeline. With this timeline, you will have a clear idea of the development of computer.Check the answers.T: The passage has three paragraphs. Find out the topic sentence of each paragraph, and the details that are used to support the topic sentences. Then complete the chart in activity 2.the topic sentences are not standing there alone, they are supported with details and date, which make the topic sentences more convincing. Now I will play the tape of this passage. Listen and find out/underline the difficult words and expressions.Teacher gives some explanations.T: What can be “over time” replaced by?Ss: As time goes by.T: How do you understand the word “simplify”? Look! (on the board: simple+-ify). -ify is a suffix which means to turn into, make or become. For example, beautify. So if you know the meaning of “simple”, you can easily get the meaning of “simplify”. Who can tell me its meaning?S: To make something easier or less complicated.T: What does “it” in line 9 refer to?Ss: It refers to the fact that computer was programmed by an operator who used cards with holes.T: Why was Alan Turing called computer’s real father?S: I guess that’s because Alan made computer more powerful, which could solve any difficult mathematical problem.T: What does “this reality” in line 15 refer to?S: It refers to the reality that computer had grown as large as a room.T: In paragraph two, there are two sentences which contain the use of “so…that…” structure. Underline them and study carefully.Show the following on the screen/board:●Over time my memory has developed so much that, like an elephant, I never forgetanything I have been told!●And my memory became so large that even I couldn’t believe it!Help students sum up the form and function of this structure:Form:so + adj./adv. + that + clauseFunction:This structure is used when emphasizing the degree or amount of something by saying what the result is.Step IV DiscussionT: Discuss this question in groups: Why do many countries want to host the Olympic Games while others do not? Use the mind map below to help you. Then prepare for a class discussion. Put forward your ideas and give reasons for your choices.T: Why do many countries want to host the Olympic Games?S: Hosting the games has a major effect on the economy and brings international prestige to the country. Thousands and thousands of visitors come to the game s and the host cities are permanently improved. By planting trees and creating parks, the city becomes more attractive for tourists.S: It helps to strengthen the spirit of patriotism and also can create more job opportunities and improve the quality of employment.S: The Olympic Games is the world's largest and highest level, and most widely influential sports event. The people of all countries enhance mutual understanding and friendship and safeguarding peace in the world event. Besides, the hosting of the Olympic Games is not only a country's comprehensive strength of the comprehensive test, but also to expand a country’ influence around the world, and at the same time promote their own development as a good opportunity.T: Well done! Why do many countries don’t want to host the Olympic Games?S: Preparing for the Olympics Games is a huge undertaking. Just like the athletes, the host city spends years getting ready for the event. Before deciding which city will host the Olympic Games, the International Olympic Committee (IOC) has to examine bids from allover the world. Bidding for the games begins about ten years in advance. Without preparing a very strong bid1, a city will not win the competition to host the games.S: Hosting the Olympic Games take so long time and so much money to prepare. Building the infrastructure costs huge amounts of money. Holding the World Cup in 2002 in Japan and South Korea, for example, meant that ten new stadiums had to be built, as well as many hotels and an improved transport system. In Beijing, after winning the bid, the government began major construction projects — the extension of the underground, the improvement of the airport and the building of new motorways. Each host city must also build an Olympic village for the athletes.S: Too many visitors may do harm to the environment of the city, in addition, the venues and buildings may be wasted after the Olympic Games.T: Well done! As every coin has two sides, hosting the Olympic Games has its advantages and disadvantages. For our powerful China, it is a good opportunity to host the Olympic Games which can benefit us a lot.Step V Homework (retelling)T: Suppose you work for an information technology magazine. Write a short passage which briefly introduces the history and development of computers. Don’t write in the first person.。