高中英语必修二unit3+Computers+教案1

Unit 3 ComputersPeriod One Warming up and ReadingBy Zhang SuochengTeaching contents:Warming up; Pre-reading; Reading; Comprehending (Page 17-19)Teaching important points:1. Students are able to learn more about the history and basic knowledge of computers.2. Students are able to learn different reading skills. Teaching difficult points:1.Help students to improve their reading abilities.2.Students are able to express their opinions.3.Help the students learn to use personification,chronology and topic sentences when writingTeac hing methods:1. Task-based teaching and learning2. Cooperative learning3. DiscussionTeaching aidsThe multimediaTeaching aimsKnowledge aims:1. Students are able to learn the useful new words and expressions in this passage2. Students are able to know basic knowledge about computers.Ability aims:1. Help students to improve their reading abilities.2. Train the students’ability to collect usefulinformation from the Internet by themselves.Emotional aim:Guide the students to work hard to create more wonderful and convenient inventions for human beings.Teaching procedureStep One Warming up1. Talk about the importance of computer and the Internet.2. Cooperative learning: Show some pictures of the development of computers.Questions: 1. What can you see in the pictures?(abacus, calculator, huge computer, PC, laptop, PDA, robot)2. What do you think will be the next development?Discussion (pair work): What do they have in common, in your opinion?Some useful expressions: I think that…In my opinion…I believe that… What’s your reason? Why do you think so?Step Two Pre-readingAsk the students to predict what the text is going to be about from the title and the pictures.Step Three While-readingTask 1: Skimming the passage for the general ideaQ 1: What is the main idea of the passage?This passage is mainly about the history of the development of computers.Q 2. Who am I?I am a computer.Task 2: Scanning for detailed information.Read the passage and finish the timeline below. (Ex. 1 on Page19)Task 3: Listen and read aloudTas k 4: Read the passage again. In pairs find out the topic sentence of each paragraph and the supporting details. (Ex.2 on Page19)Question & Summary: How to find out the main idea of a paragraph quicklyA topic sentence sets out / explains the main idea of a paragraph.A topic sentence is usually the first or the last sentence of a paragraph.Step Four Post-readingTask 5: Guessing gamesFind the word or expression for each of the following meanings from the text according to the context.(Ex. 1 on Page 20)Task 6: True or False?1. The passage mainly tells us the history of the computer.2. The computer was considered simple-minded before it got artificial intelligence.3. Charles Babbage invented the first computer.4. Since its birth the computer has been built to take the place of the human race.Step Five Brief summaryWhat have we learnt in this class?1) some words about computerscalculating machine, analytical machine, universal machine, PC, laptop,tubes, transistors, chips, network, World Wide Web, communications, finance, trade, robots, mobile phones, medical operations, space rockets2)the short history of the development of computersgreat changes in size—from__________ to ___________great changes in memory—from___________to ___________great changes in function—from___________to ___________great changes in application—from___________to ___________3) some scientists relating to computers________________built the analytical machine.________________made the first computer.4) some good methods of writinga. in the first person—personification “Who am I? ”b. in an order of time—chronologyc. topic sentencesStep Six Discussion in groups of fourWork in groups of four and discuss the advantages and disadvantages ofcomputers.Step Seven HomeworkRead the passage again. Underline the words, phrases or sentences that you don’t understand, and try to solve the problems using context clues and the dictionary.Design on the blackboardUnit 3 ComputersPeriod One Warming up and ReadingMain idea of the passage:This passage is about the history of the development of computers.Topic sentences of each paragraph:Paragraph 1: Over time I have been changed quite a lot.Paragraph 2: These changes only became possible as my memory improved.Paragraph 3: Since the 1970s many new applications have been found for me.Summary: What have we learnt in this class?1) some words about computers2) the short history of the development of computers3) some scientists relating to computers4) some good methods of writinga. in the first person—personification “Who am I? ”b. in an order of time—chronologyc. topic sentences品味人生1、不管鸟的翅膀多么完美，如果不凭借空气，鸟就永远飞不到高空。

河北省康保一中英语组高一年级集体备课教案主备课人: 殷桂雁参加人：王培珍杨静慧安秀云马艳丽郝康李纬周燕娜备课时间： 2010年11 月17日知识目标：Topic：Information technology ; history and basic knowledge of computers; robots New words: calculate universal, simplify, sum, operator, logical, logically, technology revolution artificial intelligence intelligent solve reality personal personally tube total totally network web application finance mobile rocket explore anyhow goal happiness download virus signal type coach arise electronic appearance character mop nicePhrases;from…on as a result so...that human race in a way with the help of deal with watch overSentence patterns ;1 making decisionsI think /I don’t think that…I believe that…I’ve decided that…Let’s decide…let’s make a decision2 ReasoningThe advantage/disadvantage is …I agree/don’t agree…because …Give me your reasons:First……second.What makes you think so?As/since……,I think……Grammar :现在完成时态被动语态的建构和用法Over time I have been changed quite a lot.First as a PC and then as a laptop , I have been used in offices and hones since the 1970sSince the 1970s many new applications have been found for meI have also been put into robots and used to make mobile phones as well as help with medical operations能力目标：让学生学习用英语表达自己的观点并进行简单的理由阐述及做出决定，并能按时间先后顺序来描述某事。

Unit 3 Computers(教学设计)Reading: Who am I?Teaching goals:1. To have a better understanding of the main idea of the passage.2. To enable the students to talk about computers and robots in English3. To learn two reading skills.Teaching aids: Computer, student’s book.Teaching difficulty: How to find topic sentences and supporting details.Teaching procedures:Step 1. Lead-inShow the topic of the unit and tell the students that what we are going to learn today. At first,I will show them some pictures and get them to say what they are.An old calculating machine used in China until now. (An abacus)It is built to solve some mathematical problems. But it is too big. (A huge computer) It is a new calculating machine which can solve a large number of mathematical problems.(A calculator)It is a personal computer which can solve all kinds of problems and is used widely now.(A PC / personal computer)Then show these pictures out of order and let them put the pictures in order of time. Check the answers together. Let the students know what they’ll learn today.Show the teaching aims on the screen: Getting a better understanding of the passage. Learning two reading skills.Step 2 SkimmingAsk the students to skim the first paragraph as quickly as they can and answer: Who am I in the passage?They can deal with this question easily so we just need to check the answer.Reading for the main idea of the passage. They can choose it from two sentences. Give students only 1 minute, then ask them to get the main idea of the passageStep 3 Reading for specific information.At the beginning, explain to the students what topic sentence and supporting details mean. Students can read the explanation on the screen by themselves.As the passage is a bit difficult, I’ll lead the students to find out the topic sentence and supporting details of paragraph 1. Add explanations where necessary.Next, the students should be able to find out the topic sentences and supporting details of paragraphs 2 and 3. Give them several minutes.After finishing the tasks, make a simple summary.As we talk about the development of something, time is very important for us to understand better. Now let’s complete the timeline on page 19. Give them three minutes to finish it individually.A chain of events showing the development of computer / Changes of the machineTimeline1642: ____________________________________________:: the Analytical Machine was made by Charles Babbage.1936: _______________________________________________________________________1960s: ________________________ ______________________________________________: the first family of computers was connected to each other.1970s: ______________________________________________________________________Now: _______________________________________________________________________In order to help the students get a better understanding, I’ll show them a short video about the development of computers.Step 4 Post-readingNow we know the development of computers(show the pictures in the right order). Can you guess What’s Next?Give students 2 minutes to talk with parters about What will robots do for us in the future?Then ask some students to share their opinions with us.Summarize like this: Robots are useful in our daily life. For example, it can help us cook, clean the room, wash clothes and accompany us . Also, they can direct the traffic,carry out operations and even do some dangerous jobs.Blow the short summary, I’ll show them two sentences and they are supposed to decide which one is the topic sentence:A.Robots can do a lot of things for us.B.Robots have changed a lot.Step 5 SummaryToday we have learnt:1). the development of computers2) how to find topic sentences and supporting details.Encourage the students to use the reading skills in study.Step 6 Homework1. Read the text aloud and try to retell it in order of time.2. Read the passage again. Underline the sentences that you don’t understand and try to solve the problems using context clues and the dictionary.品味人生1、不管鸟的翅膀多么完美，如果不凭借空气，鸟就永远飞不到高空。

教学准备1. 教学目标教学目标：1.To have a good review of the key words and phrases and be able to write the good and bad things about computers .2.To learn by ourselves and cooperate with each other.3.To be a hard-working,and practical student.2. 教学重点/难点1.To have a good review of the key words and phrases and be able to write the good and bad things about computers .2.To learn by ourselves and cooperate with each other.3.To be a hard-working,and practical student.3. 教学用具4. 标签教学过程一.必考单词速记1.事实 n. ________________2. (电脑)操作员,接线员__________3. 性格；特点 ______________4.科技；工艺 _______________5.目标,目的 n. ______________6. 出现；发生vi. ______________7. 解决；解答vt. _______________ 8．类型,打字 v.& n.____________9.发信号 vi.& n ；信号._________10.无论如何,即使如此adv. ______二.写出下列单词的变化形式1. operator n. 操作员; 接线员→_____________v. 操作; 经营→____________n. 操作; 经营2. technology n.工艺; 科技; 技术→_______________ adj. 科技的3. intelligence n.智力; 聪明; 智能→_________adj.智能的; 聪明的4. appearance n. 外观; 外貌; 出现→________________vi. 出现5. application n. 应用; 用途; 申请→_______________v. 应用; 申请→___________n. 申请人; 求职者6. explore vt.& vi. 探索; 探测→___________n. 探险家; 勘探者→_____________ n. 探索7. personal adj. 私人的; 个人的; →________adv. 就个人而言; 亲自→_________n. 个性; 人格;三、用所给词的适当形式填空(1)Can you say dolphins are much more ____________than other animals?Well, they are animals of high _____________. (intelligent)(2) She expressed her _________ opinion yesterday. ____________ speaking,I agreed with what she said. (personal)(3) Any ___________ who would like to _____________ to become an assistant in our company should send us an ___________ .(apply)四、语境助记——词不离句,句不离段With the electronic technology revolution going on,simplified calculation is solved in the application on finance by universal exploration. Our goal of making life happier is certain to be realized through man's intelligence.五、翻译下列必背短语1.在某种程度上_______________2.依…看；据…认为_____________3.从…时候起_______________4.结果_______________5.处理；安排；对付____________6.弥补,补足；整理,编造_________7.毕竟_______________8.看守,监视 _______________9.在……帮助下_______________六.根据句子意思写出单词的正确形式.1.With the most difficult problem _____________(solve),I went to Qingdao for a good rest.2.With so many problems _____________(arise) unexpectedly, the manager was at a loss about what to do next.3.The team e_____________ the mountain for gold, finding nothing valuable there.4.The policeman s__________ to the car to stop.5.They took turns to________(看守) their clothes while they were swimming .6．________________(从现在起), I will spent too much of my time in writing _______________(以致于) I will no longer have time ______________(处理) those interpersonal relationships七、单元考点作文串记（根据提示翻译句子）1．近来,高智商(intelligent)的机器人出现(arise)了._______________________________________________________________2．有些可以打字、发信号(signal)._______________________________________________________________3．有些能处理(deal with)一些重要事情._______________________________________________________________4．在某种程度上说(in a way),电脑改变了我们的生活._______________________________________________________________5．许多学生对电脑如此着迷以至于(so ... that ...)在电脑上花费了太多的时间._______________________________________________________________6．部分学生在考试中失败._______________________________________________________________7．但不管怎么说(anyhow)电脑在我们的日常生活中起很重要的作用._____________________________________________________________________ ____。

Unit 3 ComputersI. Teaching Material Analysis (教材分析):This text is an exposition on science, whose title WHO AM I? is so interesting that it can arouse students’ curiosity to read. Words and expressions in this text are too obscure to understand. We can use pictures and the context to guide students to understand. There are three paragraphs in this text, each of which has a clear topic sentence that gives the main idea of the paragraph, so students should be guided to pay attention to them. Unlike other expositions, this text is written in time order and the first person, which should be introduced to students as well.II. Students Analysis（学情分析）：It is the first time that students have read an exposition on science in senior school. They are not familiar with this type of writing. In addition, difficult terms and dull content in this text make it boring for students to read. Therefore, it is very important to arouse their interests and gain their confidence in reading.III. Teaching Aims（教学目标）:Knowledge aims（知识目标）：1. Get the students to know the following new words and expressions in this text: calculating machine, universal machine, analytical machine, artificial, intelligence, PC(personal computer), tube, transistor, chip,application, finance, trade, mobile, rocket, network.2. Get the students to have a better understanding of the history and basic knowledge of computers.Ability aims（技能目标）:1. Students can improve their reading ability by predicting, skimming and scanning.3. Students can find the topic sentence and supporting details of each paragraph.Emotional aims（情感目标）:Get the students to be interested in learning computers and learn how to use computers correctly.IV. Teaching Important Points and Difficult Points（教学重难点）: Important points（重点）：1) Enable the students to better understand the text structure by the clues of time;2) Enable the students to find the topic sentence of each paragraph;3) Enable them to improve their reading ability by predicting, skimming and scanning;Difficult points（难点）:1) Enable the students to have a clear mind about the topic sentence and the supporting details.2) Enable the students to explore, discuss and summarize the textstructure.V. Teaching Methods（教学方法）:1. Task-based teaching and learning2. Cooperative learning3. DiscussionVI. Teaching Procedures（教学过程）:Step one: lead-in（导入）To introduce the topic of this unit, ask the following questions:“What do you do in your spare time?”“Do you play games on computers?”Computers are very useful in our daily life.Step two: warming-up（热身）1)“Then in what other ways are computers used?”With this question, we can introduce some words which appear in the third paragraph: communication, trade, science and technology.2) Now that computers are important and useful in our life, then do you know “how computers developed?”It is very necessary that we ask students this question and then explain it to them. In this way, we can help students understand some difficult words which will hinder them from reading, and make them focus more on reading instead of on solving difficult words.From the above tasks, students have already been familiar with the textthey will read, and thus they may not be afraid to read it.Step three: predicting（预测）“Acco rding to the title and the two pictures on page 18, can you predict what will the text be about?”Before prediction, we can ask students to describe the two pictures, which can increase the efficiency of their predicting.Step four: skimming（略读）Ask students to skim the text and then answer the two questions:1) Who is the speaker?Based on prediction, this question is easy for Ss to answer.2) What is the main idea of the text?To simplify the question, I ask them to get the main idea in the following way:The text is about the ________ and the __________of computers. These two questions can help students have a general understanding about the text.Step five : scanning（扫读）Scan the text by listening to the tape and then finish the timeline:In 1642 calculating machineIn 1882 analytical machineIn 1936 universal machineIn the 1940s as large as a roomIn the 1960s connected by a networkIn the 1970s new applicationsNow computers connect people all over the worldFrom this question, students can have a detailed understanding about the text and it will help students clearly find that the text is written in time order.Step six: careful-reading（细读）1) Please read the text for a third time and then find the topic sentence of each paragraph.First read paragraph one in two minutes and find its topic sentence.Students have known how to find a topic sentence of a paragraph, however, they still have no idea about the relationship between topic sentence and supportive sentences in a paragraph. For paragraph one, I will give guidance, and para.2 and 3 can be left to them.2) Now it’s your turn to finish para.2 and 3 in three minutes. After that, have a discussion in groups of four to exchange your ideas.By cooperative discussion, students who have known the topic sentence and supportive sentences may help those who do not know. Step seven: post-reading（读后）The above reading activities are all about input, and now it is high time they should output what they have learned in this text. So I designed a retelling as follows:1) Over time I have been ______ quite a lot. I began as a __________machine in 1642. In 1882 I was built as an _________ machine and then in 1936 Alan Turing wrote a book about how I could be made to be a _________ machine. These changes only became possible as my _______ improved. In the 1960s they give me a family connected by a _______. In the 1970s many new _________ have been found for me. My goal is to provide humans with a life of _____ ______. Now I am a devoted friend and ______ of the human race.Besides language output, I also design a summary about text structure to raise their awareness of a whole text.2) The text was written in _____ order and used_______ person(人称)in _______ and ________________tense(时态).The type of writing (文体) of this text was an ________.Step eight: homework assignment（作业布置）1) Read the text by listening to the tape and underline the difficult points you cannot understand;2) Try to complete exercise 1 and 2 on page 20;VII: Blackboard Design （板书设计）Para.1 changed a lotcalculating machineanalytical machineuniversal machine英语学习讲义PC(personal computer)laptopPara.2 memory improvedtubes--transistors--chips—network--WWWPara.3 applicationscommunicationfinance / tradescience and technology。

信息技术的发展已经深深地嵌入到我们的生活中。

计算机的出现彻底改变了人们传统的生产方式和生活方式。

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

在这样一个信息时代，教师的角色也随之转变。

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

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

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

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

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

我们也可以通过展示计算机硬件的内部结构来引导学生了解计算机是如何工作的。

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

从最初的机械计算器到现代的个人计算机，这里介绍了计算机的种类、发展和特点。

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

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

我们将会讨论有关网络安全问题，从而让学生了解如何安全地使用计算机。

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

学生将了解到不同类型的软件的特点，掌握基本的软件使用技巧。

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

学生将学习如何存储、传输和访问数据，并了解如何保护我们的数据。

第六课：The Internet这一课介绍了互联网的原理和应用。

基础编程教案：高一英语必修2 Unit3 Computers全单元教案随着科技的不断发展，计算机变得越来越普遍，也越来越深入人们的生活中。

作为学生，我们需要掌握计算机的基础知识，学会如何使用计算机，更好地应用它们。

本篇文章将为您介绍一份高一英语必修2 Unit3 Computers全单元教案，帮助您更好地理解和掌握计算机的相关知识。

一、教学目标1.了解计算机的基本知识，包括计算机的特点、发展史和计算机的应用领域。

2.掌握计算机相关的词汇和语法。

3.了解计算机对人类社会发展的影响。

二、教学内容1.计算机的概念及其特点2.计算机的发展史3.计算机的应用领域4.计算机相关的词汇和语法5.计算机对人类社会发展的影响三、教学步骤1.导入通过展示一些计算机的图片，让学生了解计算机的外观和工作原理，引导学生思考计算机在我们日常生活中的作用。

提问学生：计算机是什么?计算机有哪些特点?2.讲解介绍计算机的概念及其特点，包括计算机的四项基本特征：自动性、可编程性、电子化和存储能力。

同时讲解计算机的发展史，梳理计算机的发展历程和各个时代的代表性计算机。

介绍计算机的应用领域，让学生了解计算机在不同领域的应用，如科学研究、工业生产等。

讲解计算机相关的词汇和语法，如“硬件”、“软件”、“网页”等。

3.练习让学生进行计算机相关的练习，如基本的计算机操作、编程等。

同时让学生在网络上查找相关文献，拓展知识面，增强对计算机的理解和掌握。

4.讨论让学生就计算机对人类社会发展的影响进行讨论，探讨计算机在不同领域对人类生活的影响。

引导学生思考计算机如何可以更好地服务人类和改变人类社会。

5.总结总结本节课的内容，强调学生需要通过学习计算机相关知识，提高自己的计算机技能水平，更好地适应和融入未来社会的发展和变化。

四、教学反馈通过小测验或互动问答的方式，让学生对所学内容进行检验和总结，及时了解学生的学习情况和掌握程度，以便制定更好的教学计划。

Content: Vocabulary, Warming up and WritingObjectives:1. Enlarge the vocabulary about computers by quiz and the combination with the practical use;2. Learn about the development of computers by referring to the pictures and the givenmaterials;3. Write about the advantages and disadvantages of using computers by individual and groupwork.Bases of objectives: V ocabulary required in curriculum criterion and their use in practical use. Key and difficult points: the memory of vocabulary; the development of computers.Idea and strategy:Student-centered learning; Inquiry activity ( individual & group work);Combination with practical life.Procedures:Step I. Duty workStep II. IntroductionActivity 1 A Quiz1. What is it in English?2. How many English words do you know on the keyboard?Esc Tab Caps-lock Shift Ctrl Alt EnterBackspace Delete Printscr Insert Home End PgUp / PgDn 3. More knowledge about computers:1) What is IT? 2) What is CPU?3) What is WWW? 4) What is the English for “科学技术”?5) When did the computer begin?A.1640B. 1642C. 1822D. 19366) Who really invented the computer?A. NewtonB. Bill GatesC. Alan TuringD. Thomas Edison7) When did computers come into the common family?A. In the 1950sB. In the 1960sC. In the 1970sD. In the 1980s8) What does “artificial intelligence” mean?4. Other useful words and expressions about computers:network virus program website hacker register download upload home page desk top user name click software hardware Consolidation: Complete the sentences with proper words.1) We should use computers properly and never be a m_____ potato.2) In the accident he e______ being killed.3) You can input the capital letters when you press the key “s ___”.4) If the situation is out of c______, it will be hard to deal with.5) If you want to remove something from the computer, just press the key “d _____”.6) With the development of ______ and ________(科技），computers have entered our life.7) Hackers are said to start a computer _____(病毒）.8) Nowadays you can ______(上传）and _______（下载）information from the net easily. Step III. Warming up1. The development of computersAbacus---calculator---huge computer---PC---laptop---PDA---Robot•An abacus is an old calculating(计算) machine used in China until now.• A calculator is a new calculating machine which can solve a large number of mathematical problems.• A huge computer is built to solve some mathematical problems. But it is too big.• A PC is a personal computer which can solve all kinds of problems and is widely used now.• A notebook computer is a kind of useful computer which can be taken conveniently (方便的) like a notebook.• A PDA, Personal Digital(电子的) Assistant, is a digital tool used to help to deal with personal work.2. What’ s next?Activity 2 Thinking (Individual work)Q: In what ways is the computer used？Step IV. WritingActivity 3 Group workPeople say computers bring us more advantages than disadvantages. Do you think so?Advantages:Disadvantages:Conclusion: There is no doubt that computer has two sides. …Step V. Summary What have we learned today?1. V ocabulary: (mouse, host, monitor, escape, shift, control, delete, insert, virus, register,download, upload, technology, artificial, intelligence, calculate, digital, solve, deal with)2. the development of computers;3. the advantages and disadvantages of computers.Step VI. Self-assessment(自我评价) (excellent --- good --- just so so --- not good)Step VII. Homework1. Try to remember as many words related to computers as possible;2. Finish one passage to write about the advantages and disadvantages of computers.Begin like this: With the development of science and technology, computers are playing an important part in our life. It brings a lot of advantages as well as disadvantages.On one hand, …On the other hand, …Step VIII. Reflection:。

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.。