高一英语必修2Unit3教案.doc

班 级时 间序 号课 时 出 席缺 席 课 型 课 题 第一课时 Warming Up, Pre-reading教学目标1. To know something about computers.2. To learn and talk about computers. 教学重点(1)使学生了解计算机的发展历程，及其在当今社会的广泛运用；(2) 鼓励学生用英语表达自己的观点，进行简单的推理和做出决定。教学难点(1) 教会学生通过时间的先后顺序来表达一件事；(2)让学生自己发现并感悟相关的语言规律，在学习过程中培养语感。教学方法 Individual, pair or group work to make every student work in class.教具准备:A recorder,small blackboard教学过程和方式 Step 1. Leading-inPurpose: To activate the Ss and arouse them to talk about the importance of computers in modern society.Ask Ss whether they have a computer or not and what they use it for. Let them talk as much as possibleStep 2. Warming Up Purpose: To get Ss to think about the different ways computers can be made.Pair workGet Ss to look at the following pictures, and then ask them to answer the questions. A huge computer A PCA notebook computer A calculator 1. What are they?2. What do they have in common?Suggested Answers:1. a huge computer, a personal computer, a notebook computer, a calculator, an abacus2. (1) to be used to calculate;(2) operate by human beings;(3) they are all artificial;(4) show figures in a certain way.Group workAsk Ss the following questions and encourage them to say more.1. How have computers changed our lives ?2. What do you know about computers ?Suggested Answers:1. Theyre a much more useful and humane tool than the phone , and with corporate America behind them the networks will be everywhere- changing our lives more than any technology since the automobile.2. A multi-function electronic device that can execute instructions to perform a task.作业设计： Read the passage B in the Workbook.教学回顾：班 级时 间序 号课 时 出 席缺 席 课 型 课 题 第二课时 Reading教学目标1. To know something about computers.2. To learn and talk about computers. 教学重点(1) 使学生了解计算机的发展历程，及其在当今社会的广泛运用；(2) 使学生了和掌握现在完成时的被动语态的用法；(3) 鼓励学生用英语表达自己的观点，进行简单的推理和做出决定。教学难点(1) 教会学生通过时间的先后顺序来表达一件事；(2)让使学生了和掌握现在完成时的被动语态的用法；（3）学生自己发现并感悟相关的语言规律，在学习过程中培养语感。教学方法 Individual, pair or group work to make every student work in class.教具准备:A recorder,small blackboard教学过程和方式 Step 1 Lead-inAsk and answer the three questions between T and the Ss.Step 2 Speaking Talk about the pictures in pairs or groups.Step 3. Reading1. SkimmingPurpose: 1. To get a brief understanding of the text. 2. To train the students listening ability. First, let Ss skim the text and then listen to the recording of the text. Pay attention to the pauses and pronunciation.2. ScanningPurpose: To get Ss to have some details in the text. Now we are to read the text again and underline all the expressions in the text. Write them down in your notebook.3. Further ReadingPurpose: To get Ss to get more details about the text. Read the text again and find the information to complete the table, which describes the development of computer.1642: _ 1822: The Analytical Machine was made by Charles Babbage._: _1940s: _: The first family of computers was connected to each other.1970s: _Now: _Step 4. RetellPurpose: To have a deep understanding of the text.Ask Ss to use the chart above to retell the development of the computer.One possible version:I, a computer, was a calculating machine in 1642 in France. Then I was built as an Analytical Machine in 1822, which was a technological revolution. I became a “universal machine” in 1936 to solve any mathematical problem. I was not very big at first then I became huge, the size of a large room before I was made smaller and smaller. Getting new transistors, later very small chips I changed my shape. I was connected with other computers and turned out to part of a network in the early 1960s. In 1970s I was brought into peoples homes, and came the Internet.Step5. 作业设计1. Write a short passage about the development of computers.2. Finish Ex1 (P19), Ex2 (P20).教学回顾：班 级时 间序 号课 时 出 席缺 席 课 型 课 题第三课时Language points教学目标1. To know something about computers.2. To learn some important words and phrases.3. To learn some sentence patterns.教学重点(1) some important words and expressions.(2) some sentence patterns.教学难点(1) some important words and expressions.(2)some sentence patterns.教学方法 Individual, pair or group work to make every student work in class.教具准备:A recorder,small blackboard教学过程和方式1. common （1） most widely known; ordinary:（2） have nothing/little/something/ a lot in common2. analytical分析的3.technology 科技；技术Eg With the development of technology, we will cure AIDS sooner or later.4.calculate(v.)1) to use numbers to find out a total amount, distance, etc. 计算； 核算2) to guess sth by using all the information available 推测，估计It is impossible to calculate what influence he had on her life.5go by : to pass 逝去，过去Things will get easier as time goes by. 随着时间的推移，情况会有所改善。6.totally:completely 完全地； 全部地； 整个地 They come from totally different cultures.他们来自完全不同的文化。7.share with: to have or use sth at the same time as sb else 共用，合用 Mary shares a house with three other students. 玛丽和另外三个学生合住一间房子。 Share in 分享，分担8.explore (v.) 1)to travel to or around an area or a country in order to learn about it 勘察； 探索； 考察 The city is best explored on foot. 最好是徒步考察这个城市。 2）examine sth completely or carefully in order to find out more about it. 探究，调查研究 These ideas will be explored in more detail in Chapter 7.这些想法将在第七章里作更详细地探讨。9.in a way: to a certain extent 在某种程度上 In the way 阻碍，妨碍作业设计：Use the words above to make sentences and check them with your partner.教学回顾：班 级时 间序 号课 时 出 席缺 席 课 型 课 题 第四课时Learning about Language教学目标1. To know something about computers.2. To learn and talk about computers. 教学重点(1)Some important words and expressions.（2）语法：现在完成时的被动语态教学难点(1) To make up some sentences with the new words.(2)Translate some sentences using the new grammar.教学方法 Individual, pair or group work to make every student work in class.教具准备:A recorder,small blackboard教学过程和方式 Step 1. Learning about LanguageFill the blanks and check the answers altogether.(1) Snow is _(常见的) in cold countries.(2). Can you _(估计)the cost of this journey? (3). The _(分析) of the samples on the murder spot showed some valuable cluesto the police.(4) I shall go and see him _(无论如何)(5) Hes some kind of _(数学)genius.Step2:Grammar (1) Presentation Revise the grammar: the present passive voice.am / is / are + done Revise the grammar: the present perfect voice.Have/has + done Explain the grammar: the present perfect passive voice.Have/has been +done(2) Practice Fill the blanks with the correct tense.A. The window is dirty. It _ _ (not clean) for weeks.B. -George and Lucy got married last week. Did they have a big wedding?-No, I _ (not invite). Did they have a big wedding?. C. -Have you moved to your new apartment? -Not yet, it _(paint) at the moment.D. too much. The students have been made _(not play) computer games E. Since then, all different kinds of information _(处理)by computers.F. He doesnt mind the story _(编造) in this way.Suggested Answers: A. hasnt been cleaned B. hadnt been invited C. is being painted D. not to play E. has been dealt with F. being made up d Translating following sentences into Chinese A. A new personal computer has been bought.B. Many problems ahs been found with our new computer.C. A PC has been built the way we wanted.D. Our computer has just jointed to the Internet.E. The computer ahs been used every day since we bought it.F. A lot of e-mails have been written on the computer in the past year.Step 3. 作业设计： Finish Ex1 (P21), Ex2 (P21) and Ex3 (P21).教学回顾：班 级时 间序 号课 时 出 席缺 席 课 型 课 题 第五课时 Listening教学目标1. To practice listening.教学重点Improve their listening skills.教学难点How to improve their listening skills.教学方法 Individual, pair or group work to make every student work in class.教具准备:A recorder,small blackboard教学过程和方式 Step 1. Listening (Using Language)1. Show the fours pictures to Ss and let them talk about them. TV DVD 2.Listen to the tape3. Listening task (Workbook P58)Period 5 Speaking, Reading, WritingSpeaking1. Group workGet two Ss to be a group and tell each group do as follows. Then let some of the groups present their reports.You and your partner have been asked to help choose computers for your school. You have looked at several computers. Talk about the special things each computer can do. Make a decision about which kind of computer to buy and explain why. Write a report about your choice. Then read your report to another group as if they are a teacher or the headmaster. Below is a list of things your computer could have. 2. Individual workSuppose every student have a chance to get a computer and they can choose any kind of computer. Let them think about the reasons they choose the computer. Then ask them to present their reasons. 作业设计：Prepare for next period.教学回顾：班 级时 间序 号课 时 出 席缺 席 课 型 课 题第六课时Using language教学目标1. To understand the passage clearly.2. To learn some important words and phrases.3. To learn some sentence patterns.教学重点(1)some important words and expressions.(2)some sentence patterns.教学难点(1) some important words and expressions.(2)some sentence patterns.教学方法 Individual, pair or group work to make every student work in class.教具准备:A recorder,small blackboard教学过程和方式 Reading 1. Listen to the tape and get the main idea of the passage.2. read the passage carefully and ask Ss to answer the following questions.(1) What does he act as on the team?(2) What helped him to move and think?(3) Why does he think the team who won the first place cheated?Suggested Answers:(1) On the team, Im a striker, so I can run very fast.(2) My computer chips help me to move and think like a human.(3) Because they had a new kind of program, which had just been developed before the competition.Step 3. WritingPurpose: To develop Ss writing ability.1. Individual work You are an android. You work for a family with one child who is very spoiled. The parents want