人教版高中英语 必修2 Unit 3Computers-知识点复习学案

必修2 Unit3 ComputersI.单元基础知识一、核心单词1．________ vi.出现；发生2．________ v．发信号n．信号3．________ adv.无论如何；即使如此(＝anyway) 4．________ adj.电子的5．________ vt.简化6．________ n．金融；财经7．________ v．打字n．类型8．________ n．革命9．________ n．出现；外貌；外观10．________ vt.解决；解答11．________ n．目标；目的；(进球)得分12．________ adj.顽皮的；淘气的13．________ n．技术；工艺；科技14．________ n．智力；聪明；智能15．________ adj.宇宙的；普遍的；通用的16．________ n．应用；用途；申请17．________ adj.总的；整个的n．总数；合计18．________ v．探索；探测；探究19．________ adj.私人的；个人的；亲自的20．________ adj.合逻辑的；合情理的二、高频短语1．从……起________2．结果________3．如此……以至于……________4．下载信息________5．在某种程度上________6．实际上；事实上________7．充分利用________8．在……的帮助下________9．处理；安排；对付________10．监视；看守________11．有……共同之处________12．人类________13．技术革命________14．下决心做某事________15．用这种方法；这样________16．编造；化妆；和好________17．一大笔钱________18．亲自________19．总共；一共________20．随着……的出现/兴起________三、重点句型〔填空〕1．I developed very ________(slow) and it took nearly two hundred years ________ I was built as an analytical machine by Charles Babbage.我发展得很慢，差不多两百年之后，查尔斯·巴比奇才把我制成了一台分析机。

人教版高中英语必修2《Unit3Computers》教案人教版高中英语必修2《Unit 3 Computers》教案【一】教学准备教学目标1. To practise listening comprehension.2.To practise making decisions and reasoning教学重难点1. To practise listening comprehension.2.To practise making decisions and reasoning教学工具课件教学过程Step1. revision1. check the homework exercises.1). It has been reported that children will be offered free education.It has been reported that free education will be offered to children.2). It has been said that we will be offered the latest computer science course book.It has been planned that the latest computer science course book will be offered to us.3). I have been told by Peter that I will be lent his notebook computer for a week.I have been told by Peter that his notebook computer will be lent to me for a week.2. Question: What can computers be used as?Step2. Lead-inAs we know, science and technology is developing very fastand computers have become smaller and smaller. They have been used in many fields. So, the 21st century is the century of information technology What does it mean? Does information technology/ IT only mean things like computers? Of cause not. Actually, it means more than computers. Computers are just one kind of IT. What else do you know is part of IT?(TV, radio, CD-ROM, DVD, books……)Step3. Listening (SB)1. Pre-listening: What are the changes brought by different forms of IT ?What are the advantages and disadvantages of them ?2. While-listening:Go through the chart and make sure the students look at the chart before they listen to the tape. (This is to sharpen their attention and listen for the answers. This will also help them get the gist of the text.) Then Listen to the tape and finish filling in the chart. (If necessary, play the tape for several times.) Say: After listening to their talk, we know all kinds of IT have both disadvantages and advantages.Let’s check the answers together.Type of IT Advantages DisadvantagesTV You can both listen and watch. You cannot write to friends.Web You can find information. It is very expensive.Radio You can listen to English. You cannot watch a film.Book You can get information. Sometimes it is out of date.3. Post-listening:1) (pair work): decide which type of IT is best for you to use right now. Make your choice and give your reasons by using the following expressions.I think that….In my opinion, ….I believe that….I agree because….I disagree because….I’ve decided that….2) (group work): Discussion :Computers are useful and have brought us lots of good things, but they also cause bad effects. What attitude should we have towards the computer? (Make good use of it but never get trapped by it.)Step4. Speaking1. Pre-speakingSay: From what we have learn, we should admit that computers and the web have a great influence on the school education as well as people’s life. It has come into people’s everyday life and many families hold computers in their homes. Now there is a task for you.2. While-speaking1) Situation: You have been asked by your parents to help choose computers for your home. You and your friend have looked at several computers. Talk about the special things each computer can do. Make a decision about which kind of computer to buy and explain why.Information input: Show students some pictures of different computers (desktop computer & laptop computer & …) Language input: Useful expressions (Repeat it to strengthen students’ ability of use it.)Supporting an opinion Challenging an opinionI think that … , because … Perhaps, but what if / about …?First, … Have you thought about …?One reason is that … What makes you think that …?I think it is better because… I don’t like it because….(Pair work )Use the expressions to support your opinion or challenging other’s opinions.2) Oral report: (individual work )Do an oral report to your father and start your report like this: I looked at many different computers. The one I have chosen is the PEP personal computer. One of the main reasons is that it is suitable for homes. I found that…3. Post-speakingConclusion—What useful expression do we use to make a decision and reason?(In this way, they can review and use the words and phrases again.)Step6 Pre-writingSay: Imagine what problems and delights this android might have to deal with while it is serving you. Try yourself in someone else’s shoes is an important way of understanding how other people feel.Then discuss: You are an android. You work for a family with one child who is very spoiled. The parents want you to do everything for them. The parents are nice, but they often ask you to watch over their child. How do you feel? What would you do if the child asked you to do his/her homework for him/her? Would you ever tell the chi ld “no”?Step7 WritingSay: Write a passage about the result of your discussion! It should contain:What do you have to do?What is the child like?What is the parents’ requirement of the child?What do the parents want you to do?What does the child want you to do?Then what will you do? How do you feel?Sample writing:Hello everybody, my name is Liu Yan.I am a 321 model android.I work for the Li family. Mr and Mrs Li work very hard too.Mr Li is an architect and designs great tall apartment blocks.Mrs Li is a doctor and has to look after many patients.I remember all the plans for Mr Li's projects and can tell Mrs Li which drugs are the best to give any particular patient. And I also look after their library. I store all the books that they borrow from their school or friends in my brain.Of course my brain is as large as a mountain, so work like that is no trouble to me.I really eat books just like people eat food.The Lis have a child who is very spoiled. He needs me to remember all his school textbooks so that I can do his homework for him.He just gives me the information on the subject, what has to be done and the page numbers and I get on with it while he enjoys himself with his friends.Sometimes I don't think it is right to do his homework for him — it's somewhat cheating. However, his parents are very concerned at the pressure of work in school these days.The child has too much homework to do. They like him to go to the key school but they also want him to be able to have hobbies, learn to swim and keep fit! Poor child!So they consider me the most important person in the family after themselves.I am always introduced to their friends and play with visiting children.I am the perfect family academic aid and, although I was not cheap to buy, Mr Li says I was worth every yuan!Step8 AssessmentGet the students to assess their writing ability according to the following the questions:1. Is your composition well developed?2. Are your ideas well organized to the point?3. Do you have a good choice of words and idioms in your writing?4. Do you get a good mastery of complex structures of language?5. What kind of mistakes have you made in your writing?Step9: HomeworkWrite about your discussion. You may begin like this:Hello, everyone. My name is ___. I’m 321 m odel android. I work for the Li family….课后小结学了这节课，你有什么收获?课后习题完成课后习题一、二。

Unit 3 Computers 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。

Unit 3 Computers（Module 2）Key words and phrases：1.sum n 总数金额.a sum of 一笔. to sum up_____________2.application n．应用；用途；申请apply vt.申请，请求；应用；适用apply for a visa________________apply a theory to practice __________________apply to sb. for sth.__________________apply oneself to doing sth/be applied to doing sth :______________________ 3.anyhow adv.(也作anyway)无论如何；即使如此somewhat: __________________ anyway: _______________________ somehow: _____________________4.signal vi. & vt.发信号n．信号signal _____ sb to do sth: ___________________single__________________5.arise vi.出现；发生；起身，起床arise arose arisen 出现；发生；起身，起床arouse aroused aroused ______________________rise rose risen _______________________raise raised raised _______________________arise from＝result from __________________6.as a result(consequence) 结果as a result of(consequence)________ without result _________________ result in＝lead to ; bring about ; _________result from: ______________________7. in a way = in a sense________________ a/some degree/to an/some extent 到某种程度上in the way__________ in no way_________ all the way___________ by the way___________ on one's way/the way to: _____________make way for________________ make one’s way to do_____________ 8.deal with处理；安排；对付；论述；谈论deal with sb. _____________ deal with sth.________________ 如何处理……：_______ to deal with sb./sth._______ to do with．9.watch over看守；监视；守护；照管watch out (for)______________ keep (a) watch ____ ：_____________ on/off watch_______________ watch one's step___________________ mon adj. .共同的，常见的have sth in common with sb = be_____ common ______ sb in sth: ________ common ground________________ common sense___________________ 11.share v. 分享；分担; 共同具有share sth _______ sbn.一份东西；一份责任；股份12.provide vt. & vi. 提供provide sth._____ sb=provide sb ______sthprovided / providing conj. ___________________13．make up: 组成；凑足；编造；化妆；打扮make up for__________________ make for __________________ be made up of /consist of__________ make a fool of ______________ make fun of ________ make out___________________ make the most/ the best of ____________ make it____________________ make a contribution/contributions to__________pare…with: _______________________compare…to: ______________________15.simplify: _________________modify________ qualify________ beautify_______ clarify_________Key sentences：1. Huge sums have been invested in this project.译:___________________________2. 用arise, arouse, rise, raise填空①New difficulties will ________ from such situation.②His strange behaviour ________ our suspicions.③The price of wheat has ________/has been ________ since the last summer.3. ①You could also repeat the name in a way that does not sound forced or artificial.译:____________________________________________________________ ②Her social life got ____________________________ her studies.她的社交活动妨碍了她的学习。

Unit 3 Computers 语言要点Ⅱ 词性变化（旨在提供语法填空所需材料）1. sum n. 金额; 款项; 总数; 总和[典例]1). He was fined the sum of 200. 他被处以200英镑罚金。

2). The sum of 5 and 3 is 8. 5加3的和是8。

[重点用法]in sum简言之; 总而言之sum sb/sth up形成对某人[某事物]的看法[练习] 中译英1). 总之, 计划告吹了。

_______________________________________________________________________________ ______2). 我认为她是个很能干的经理。

_______________________________________________________________________________ ______Keys: 1). In sum, the plan failed.2). I summed her up as a competent manager.2. advantage n.优点；优势；有利条件[典例]1). He has the advantage of a steady job. 他有工作稳定的有利条件。

2). They took full advantage of the hotel's facilities. 他们充分利用旅馆的设备。

[重点用法]take advantage of 对……加以利用；欺骗to sb.’s advantage 对某人有利have /get/win an advantage over （of）胜过；优于[练习] 中译英1).协议对我们有利。

_______________________________________________________________________________ ______2).她利用了我的慷慨。

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.。

人教必修二UNIT 3核心考点专讲专练【考点剖析】arise vi. (arose, arisen)出现;发生;起身;起床;上升[温馨提示]arise为不及物动词,没有被动语态。

arise 作“发生;出现〞讲时,主语多为抽象名词,如argument,problem,quarrel,question等。

【易混辨析】arise, arouse,rise与raise原形过去式过去分词现在分词含义arise (vi.) arose arisen arising在现代英语中主要用于借喻,指“出现;发生;产生〞。

arouse(vt.)aroused aroused arousing 指“唤醒;激起〞,后常跟抽象名词。

rise (vi.) rose risen rising使用范围较广,指“升起;上升;增长〞,也可指“起立;起床;地位升高〞等。

raise (vt.)raised raised raising用在句中,后面需跟宾语。

一般指“升起;举起;增加(程度、价格等);提高(音量);提出;种植(农作物);养育;抚育(子女)〞。

I developed very slowly and it took nearly two hundred years before I was builtas an analytical machine by Charles Babbage.我发育非常缓慢,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。

句型公式：It tak es some time before…过了一段时间之后才……【句式点拨】before 引导时间状语从句时,用以表示主句动作发生在从句动作之前,译法灵活。

(1)强调主句动作发生在从句之前,意为“不等……就……〞。

(2)在“It+be+时间段+before从句〞中,意为“……之后才……〞。

(3)在“It+be+否认形式+long+before从句〞中,意为“……不久就……〞。

Unit 3 Computers类别 话题词汇词组、 短语功能语法随堂练习教学目的和要求〔〕Information technologyhistory and basic knowledge of computers robotscalculate calculator PC notebook common analytical simple simple-minded technology technological revolution universal mathematical artificial intelligence anyway totally network truly race birth IT advantage disadvantage type disagree choice material personally create coach move arise brain mop wanderin common in one ’s opin ion go by so ... that ... deal with humanrace in a way make up with the help of after all watch over1. 做出决定〔 Making decisions〕I think that ... In my opinion ... I believe that ...Let ’ s make our decision.I ’ ve decided that ...2. 推理〔 Reasoning 〕The advantage/disadvantage is ...What ’s your reason? Why do you think so?I think this one is better because ...I don ’t like this one because ...现在完成时的被动语态结构和用法I have been made smaller and smaller.I have been used by millions of people.I have truly been built to help the human race.1、 Go over the story and discuss with your partner who the speaker is in thisstory.Now write down three sentences from the story to support your idea. It is a computer because it describes ：Itselfas the analyticalmachine designed by CharlesBabbage 〔 which was the firstdesign of a computer 〕. Then in 1822 I was builtas an AnalyticalMachine by CharlesBabbage.Alan Turing as its real father 〔 and he designed thefirstreal computer 〕 . “ Myreal father was Alan Turing ...〞Having artificial intelligence〔 which only computers have 〕 . People have naturalintelligence.“ However, people thoughtI was simple-mindeduntilthey discoveredI had ‘artificial intelligence’ . 〞课程标准要求掌握的工程 ；Teaching aims and demands2、 Look at the timeline below.Fillin the blanks with information from the reading above.Timeline1642： The computer began as a calculating machine.1822： The Analytical Machine was made by Charles Babbage.1936： Alan Turing wrote a book to describe how computers could be made.1960s：Computers had new transistors and became smaller.1960s：The first family of computers was connected to each other.1970s：Computers were brought into people’ s homes.Now： Computers connect people all over the world together.课堂笔记1、 I know this sounds very simple,but at that time it was a technological revolution.我知道这听起来很简单，但是在那个时候这却是一项技术革命。

Unit3 Computers Book2Period 1 Words and expressionsLiu JuanI .Content :New words and expressions in Unit 3II .Teaching aims:Master the new words and expressions.III.Main points:1.Pronounce the words and phrases correctly2.Try to remember the spelling and Chinese meaningIV .Difficult pointsUse the words freelyV .Teaching stepsSTEP1. Pronunciation correctingRead after the teacher or the tape twice. Then the teacher asks the students to read words by themselves.STEP2. Skills in memorizing the new wordsThe teacher analyses the structure and usage of the new words briefly.STEP3. Consolidation of the words and expressions★单词翻译1.____________ vt.计算2. ____________ n.计算器3. ____________n.笔记本4. ____________a.简单的5. ____________n.工艺；技术6. ____________a.科技的7. ____________n.革命8. ____________a.宇宙的9. ____________a.数学的10. ____________a.人造的11. ____________n.智力；智能12. ____________ad.完全地13. ____________n.网络14. ____________ad.真实地15. ____________n.种族16. ____________n.诞生17. ____________n.优势；优点18. ____________n.缺点19. ____________v.打字20. ____________vi.不同意21. ____________n.选择22. ____________n.原料23. ____________ad.亲自地24. ____________vt.创造25. ____________n.教练26. ____________n.步骤；动作27. ____________vi.出现28. ____________n.脑29. ____________n.拖把30. ____________vi.徘徊★词组1.___________________共有；共用2. ___________________依……看来3. ___________________走过；过去4. ___________________处理；安排；对付5. ___________________在某种程度上6. ___________________弥补；整理7. ___________________毕竟8. ___________________在……的帮助下9. ___________________看守；监视★单词拼写1. Credit cards have brought about a ________(革命) in people’s spending habits2. I’m sorry to say that I ______ (彻底地)forget about it.3. Look before leap. Don’t be ____________(头脑简单的).4. With the development of _________(技术), more practical machines have been invented.5. In basketball matches, American players have an obvious_________(优势) in height.6. P________ speaking, I’m in favor of the plan.7. In c______ with many others, she applied for a training place.8. I don’t like a________ flowers, which cannot purify(净化)the air.9. A n_______ computer is easy to carry.1o.He’s very clever. He’s got quite high i____________ quality.★选词填空1.2.Don't take it seriously. The story is only ________.3.I couldn't get through the gate because your car was ________.4.The change was an improvement ___________.5.I'll buy a house which modern, comfortable and _____ in a quiet place.6.The old man is ______ in health.7.Peter works well.______ he likes to help others.8.His brother __________ in the army for two years.9.You shouldn't have talked about the boy's ___________ affairs.10.Do you mind waiting a few more minutes for the photos? They ______.ing words and expressions (Ss book P20)STEP5. Homework1. Learn all the words and expressions by heart.2. Preview the text and finish discovering useful words and expressions.Blackboard Design:Period 2 TextLiu JuanI .ContentText: Who am I?II .Teaching aims:1. understanding the general meaning of the new text to train the reading ability of the students2. 德育目标：了解计算机的发展历程。