unit3computers教案

1、廣州市白云區(qū)成龍中學2015學年第一學期牛津版八年級上冊英語教案Unit 3 ComputersPeriod 1教學內(nèi)容：Getting ready(p.33), Reading(pp.34-35), Vocabulary C1,C2(p.36)教學目標：語言知識：1. 認讀和理解單詞：brain,keyboard,monitor,mouse,speaker,calculate,control,depend,operate,type,railway,tiny，以及短語depend on , in addition, (be) unaware of, work as等：2. 初步了解文章大意，了

2、解電腦在人類社會中的重要作用。語言技能：1. 能用英語說出電腦相關(guān)配置的名稱；2. 能通過閱讀文章的小標題了解文章的大致內(nèi)容。情感態(tài)度：增強對新鮮事物的求知欲，努力探索不斷發(fā)展中的信息技術(shù)。教學重點：認讀和理解與“電腦”話題的詞匯。教學難點：根據(jù)上下文語境猜測詞義。Teaching procedures:Step 1 Pre-reading A. What do you know about computer? (Read the Getting ready and talk about the topic of this unit,then answer the following ques

3、tions.)1. Do you have a computer at home?2. What do you usually do with it?B.Before you read(How much do you know about computers? Look at the photo below and complete the sentences with the correct names.)1 .The _ shows words and pictures.2 .We use the _ for typing.3 .The “brain” of a computer is i

4、n the _.4 .We move the _ to control the computer.5 .We hear sound from the _.(Look at the pictures, the title and the sub-headings of the article on page 35. Then tick () the facts that the article probably talks about.)1. Computers are getting smaller and better.( )2 .Computers can do important job

5、s like flying planes.( )3 .Computers may work as doctors.( )4 .Computers are expensive.( )Step 2 Vocabulary1. Can you write more words about computers(有關(guān)電腦的詞匯)? Computer2. C1 The words in italics explain the meanings of some words on page 35. Find these words to complete the sentences. Change their

6、forms if necessary.1. If something is very small, it is _. (line 5)2.Some young people always need help from their parents. They should learn to _ themselves. (line 8)3.We had fun and learnt something new as well. We had a good time. _, we learnt a lot. (line 14)4.When we make a machine work, we _ i

7、t. (line 16)3. C2 Complete the conversation below with the words from the box.depend on expensive In addition speedMark:I bought a new computer.Helen: Why?Mark:I bought my first computer five years ago. I used it almost every day, and it became really slow.Helen: I see. So hows your new computer?Mar

8、k:It was really _, but it works at a must faster_ than my old one. _, it has a larger monitor. Helen:I also _ my computer a lot these days. I use it to write reports, and to get on the Internet too. My computer Works well , so Im not going to buy a new one. Step 3 Post-readingD1 Read the article on

9、page 35 and complete the answers with the example from the article.1 S1: There may be tiny computers in your home. S2： where，for example？ S1：Inside your _ or _.2 S1: We can do many things with computers in our daily life. S2: For example? S1: We can _,_ and_with hem.3 S1: Computers can do some impor

10、tant jobs. S2: For example? S1: They can _and_.4 S1: One day, computers may be able to do a better job than human beings. S2: For example? S1: They_.Step 4 Homework1.抄寫單詞和短語：monitor， speaker， main unit，keyboard，mouse，type，brain，control，expensive，tiny，depend，calculate，speed，operate，railway， work as，(

11、be) unaware of，depend on，in addition等。 2.思考：除了銀行的ATM機，電腦還被廣泛運用于日常生活中的哪些領(lǐng)域？ 3.熟讀課文。Reflect:Unit 3 ComputersPeriod 2教學內(nèi)容： Reading, language points教學目標：語言知識：1. 深入學習課文中的語言知識；2.能夠用中文譯出文章的意思。語言技能：1.能夠靈活運用所學的語言知識；2.能夠有感情的流利地朗誦課文。情感態(tài)度：深入理解電腦與人之間的關(guān)系。教學重點：深入學習課文中的語言知識。教學難點：能夠靈活運用所學的語言知識。Teaching procedures:St

12、ep 1 Review the wordsRead the words together.Step 2 Translate the reading1. Listen to radio part by part. Smaller and better What can we do with computers? Is a computer cleverer than me?2. Read the reading part by part. Smaller and better What can we do with computers? Is a computer cleverer than m

13、e?3. Ask student translate the reading part by part.Step 3 Learn the language points1.Now computers are becoming smaller and better.比較級+ and +比較級 表示“越來越”，常與become/get連用。2.You may be unaware of them.unaware 是形容詞，意為“未察覺的；不知道的”，常見的搭配有 be unaware of sth/sb.unaware 由前綴un-加aware 構(gòu)成。前綴un-意為“不；無；非”，常放在一些形容詞

14、、副詞和名詞之前，構(gòu)成該詞的反義詞。例如：unfair 不公平的3.In addition, computers can do important jobs . 除此之外，電腦還能做重要的工作短語in addition 常用作副詞，意為“除以外(還)”，相當于besides，兩者可以互換使用。in addition 在句中常單獨使用，放在句首。例如：他鋼琴彈得好，除此之外，他還能唱歌。He can play the piano well. In addition / Besides, he can sing. 【拓展】in addition to . 意為“除了 之外(還)”，后面常接名詞、代

15、詞或動詞ing，可與besides互換使用，常放在句子中間。例如：除了英語之外，我還喜歡化學。 I like Chemistry in addition to / besides English. 4. What will happen to us if computers can do all our jobs?happen 意為“(偶然)發(fā)生”，常用所發(fā)生事情的名詞或代詞作主語，可與take place 互換使用；與介詞to 構(gòu)成動詞短語，意為“發(fā)生在身上”。故事發(fā)生在1990年6月。 The story happened / took place in June, 1990. 昨天他出了

16、車禍。 A traffic accident happened to him yesterday. Step 4 Practice1. Finish the practice on page 44.(陽光學業(yè)評價)2. Check the answer.Step 5 Homework1.完成英語周報第9期第三版reading部分； 2.記前10個單詞；3.A層同學背文章第一部分。Reflect:Unit 3 ComputersPeriod 3教學內(nèi)容： Grammar教學目標：語言知識：1. 學習形容詞比較級和最高級的含義；2. 懂得形容詞比較級和最高級的用法。語言技能：1. 能正確運用形容詞

17、比較級和最高級來比較兩者或以上的人或事物等。2. 通過發(fā)現(xiàn)語言、學習語言，最終能運用語言。情感態(tài)度：增強合作學習、互相幫助的意識。教學重點：學習形容詞比較級和最高級的含義。教學難點：懂得形容詞比較級和最高級的用法。Teaching procedures:Step 1 Discovering the language1.In the 1940s,the first computers were bigger than cars.2.Now computers are becoming smaller and better.3.You depend on computers more than y

18、ou realize.4.Is a computer cleverer than me?5.For example,they may be better than doctors at doing their jobs.Find out:_Step 2 Learning the language1. Check the result of discussion.2. The comparative of adjectives and The superlative of adjectives a. fast-faster-fastest b.nice-nicer-nicest c.heavy-

19、heavier-heaviest d.big-bigger-biggest eresting-more interesting-most interesting f.good-better-best 3. Summer the rules單音節(jié)和少數(shù)多音節(jié)詞比較級和最高級的規(guī)則變化：規(guī)則原級比較級最高級1.直接在詞尾加-er/-esttalltallertallest2.大多數(shù)以e結(jié)尾的形容詞，加-r/-stnicenicernicest3.以輔音字母加y結(jié)尾的形容詞，先把y改為i，再加-er/-esthappyhappierhappiest4.重讀閉音節(jié)詞尾只有一個輔音字母時，雙寫

20、該輔音字母，再加-er/-estthinthinnerthinnest其他雙音節(jié)詞或多音節(jié)詞，在該詞前面加more/most.例如：beautiful-more beautiful-most beautiful;useful-more useful-most useful.不規(guī)則變化原級比較級最高級good/wellbetterbestbad/badlyworseworstmany/muchmoremostlittlelessleastfarfarther 較遠farthest 最遠further 進一步 furthest 最大程度oldolderoldesteldereldestStep 3

21、 Use the language1.原級的常用句型：a.程度副詞very, too, so, quite等修飾形容詞的原級，如：very tall、 too hot、 so cold The car is quite/very cute.b.as+adj.+as 和.一樣 as funny as as big as as happy as as smart as否定形式： not as+adj.+as 和 不一樣The story is as interesting as that one.The question is not as difficult as that one.2. 比較級

22、的常用句型： a.比較級+than This cake is more delicious than that one. b.倍數(shù) + 比較級+than . This garden is 9 times larger than that one. c.the +比較級+of the two Amy is the shorter of the two.3.最高級的常用句型：（三者或三者以上） a.the+最高級+of/in Shanghai is the largest in China. b. One of+the+最高級+名詞復(fù)數(shù)“最的之一” One of the most importan

23、t languages is English. c. the+序數(shù)詞+最高級+單數(shù)名詞+in短語 “在中是第幾個” China is the third largest country in the world.Step 4 Homework1. 熟記形容詞的比較級和最高級的構(gòu)成方式。2. 完成英語周報第10期第三版的Grammar部分。Reflect:Unit 3 ComputersPeriod 4教學內(nèi)容： Grammar 教學目標：語言知識：懂得運用形容詞比較級和最高級的用法。語言技能：1.能正確運用形容詞比較級和最高級來比較兩者或以上的人或事物等。2.通過發(fā)現(xiàn)語言、學習語言，最終能運用

24、語言。情感態(tài)度：增強合作學習、互相幫助的意識。教學重點：懂得運用形容詞比較級和最高級的用法。教學難點：靈活運用形容詞比較級和最高級的用法。Teaching procedures:Step 1 Review the grammar rulesLet students recall the following rules together.單音節(jié)和少數(shù)多音節(jié)詞比較級和最高級的規(guī)則變化：規(guī)則原級比較級最高級1.直接在詞尾加-er/-esttalltallertallest2.大多數(shù)以e結(jié)尾的形容詞，加-r/-stnicenicernicest3.以輔音字母加y結(jié)尾的形容詞，先把y改為i，再加-er/

25、-esthappyhappierhappiest4.重讀閉音節(jié)詞尾只有一個輔音字母時，雙寫該輔音字母，再加-er/-estthinthinnerthinnest其他雙音節(jié)詞或多音節(jié)詞，在該詞前面加more/most.例如：beautiful-more beautiful-most beautiful;useful-more useful-most useful.不規(guī)則變化原級比較級最高級good/wellbetterbestbad/badlyworseworstmany/muchmoremostlittlelessleastfarfarther 較遠farthest 最遠further 進一步

26、 furthest 最大程度oldolderoldesteldereldestStep 2 Review the language1.原級的常用句型：a.程度副詞very, too, so, quite等修飾形容詞的原級，如：very tall、 too hot、 so cold b.as+adj.+as 和.一樣 as funny as as big as as happy as as smart as否定形式： not as+adj.+as 和 不一樣3. 2.比較級的常用句型： a.比較級+than . b.倍數(shù) + 比較級+than . c.the +比較級+of the two 3.

27、最高級的常用句型：（三者或三者以上） a.the+最高級+of/in b. One of+the+最高級+名詞復(fù)數(shù)“最的之一” c. the+序數(shù)詞+最高級+單數(shù)名詞+in短語 “在中是第幾個” Step Practice the language1.寫出下列詞的比較級和最高級。important _ _ easy_ _ wet_ _ happy_ _ careful _ _ thin _ _ good_ _ hot _ _ easily _ _ many_ _ nice _ _ big _ _heavy_ _delicious_ _much_ _2. 選擇正確的答案。1. The air i

28、n Beijing is getting much _ now than a few years ago. A. clean B. cleaner C. cleanest D. the cleanest 2. John is _runner of all the classmates. A. good B. better C. best D. the best 3. Beijing is one of _ cities in China. A. very beautiful B. much beautiful C. more beautiful D. the most beautiful 4.

29、 The Yellow River isnt so _as the Changjiang River. A. long B. longest C. longer D. the longest 5. Who is _, Jim, Li Lei or Ling Feng? A. tall B. taller C. the tallest D. much taller3. 講解英語周報第10期第三版的Grammar部分的練習。Step 4 Homework1. 完成陽光學業(yè)評價unit3 Grammar 部分。2. 預(yù)習More practice。Unit 3 ComputersPeriod 5教學

30、內(nèi)容：More practice教學目標：語言知識：1. 認識和理解單詞serious,health;認識單詞effect。2. 學習相關(guān)的語言點。語言技能：1. 能用英語說出沉溺電腦的壞處并提出建議。2.能運用語言點的知識。情感態(tài)度：合理安排使用電腦的時間，使之成為學習的好幫手。教學重點：學習相關(guān)的語言點。教學難點：能用英語說出沉溺電腦的壞處并提出建議。Teaching procedures:Step 1 Pre-readingTalk about:The harmful of playing computer games for a long time.Brainstorming:Play

31、ing computer gamesStep 2 While-readingMore practice1. First reading Read the passage on page 45 quickly,and answer the two questions.(1) Who is the man in the picture? _(2) What is the man doing? _2. Second readingRead the passage again and answer the following questions and then check the answers w

32、ith your partner.(1) Who is attending the meeting? _(2) Why did the student become ill? _(3) What is the serious problem? _(4) Who will talk to the students tomorrow? _(5) What will they talk about? _Step 3 Post-readingHow can young people stop themselves from playing computer for too long? Discuss

33、this with your classmates.First, we should_Second, we should_Third, we should_Step 4 Language point1.The student played computer games on the Internet all day Saturday without stopping to drink, eat or sleep. 這個學生星期六整天上網(wǎng)玩游戲，不喝不吃不睡。(1) stop to do sth 停下來去做某事(表示停下手中的事去做另外一件事)。例如：他看見我時，停下來跟我打招呼了。 He st

34、opped to say hello to me when he saw me. (2) stop doing sth 停止做某事(表示不做某事了)。例如：我爸爸戒煙了。My father stopped smoking.2.I hope we can all work together to stop students from spending too much time playing computer games.我希望我們能一起努力阻止學生們花太多時間玩電腦游戲。stop sb (from) doing sth 阻止某人做某事(from經(jīng)常被省略)。例如：他阻止我出去。 He sto

35、pped me from going out.3.Theyll also give some advice on how to use computers for studying.他們也會給一些關(guān)于怎樣利用網(wǎng)絡(luò)學習的建議。some advice on 關(guān)于某方面的建議（advice 不可數(shù)）how to do-怎樣做某事（必須接賓語）Step 5 Homework1. 寫一篇關(guān)于How can young people stop themselves from playing computer games for too long?的短文，談?wù)勛约旱目捶ā?. 利用搜索引擎查找更多關(guān)于“形容

36、詞比較級和最高級”的信息，并整理成筆記。3. 選擇性完成英語（八年級 上冊）B第45至48頁Integration的練習。Reflect:Unit 3 ComputersPeriod 6教學內(nèi)容：Speaking(Talk time & Speak up)教學目標：語言知識：掌握特別重讀這一語言現(xiàn)象。語言技能：1. 能用特別重音強調(diào)句中想要突出的單詞；2. 聽錄音，跟讀對話，能分析特別重讀某些單詞的原因；3. 通過小組合作，就他人在家使用電腦的情況做一個問卷調(diào)查，記錄調(diào)查結(jié)果，并向全班口頭匯報。學習策略：能根據(jù)重音規(guī)則分析并判斷練習中應(yīng)特別重讀的單詞。Teaching procedures:S

37、tep 1ReadingA1 Read the conversation below and practise it in pairs. Give extra stress to the words underlined twice.(page 42)Amy: What do you think of computers, Frank? Are they cleverer than human beings?Frank: No, I dont think so .Amy: Why not? Computers can do a lot of things!Frank: Maybe, but h

38、uman beings created computers!Amy: Thats true .Step 2 ThinkingRules about sentence stress:1 Stress nouns, verbs, adjectives, adverbs and numbers.2. Do not stress words like a, the, is and have except for special reasons.3. Give extra stress to the most important word in the sentence. You, the speake

39、r, must decide what the most important word is.Step 3 Listening Listening to the radio(Book A P42 A1,A2),and read the conversation together.A1 Amy: What do you think of computers, Frank? Are they cleverer than human beings?Frank: No, I dont think so .Amy: Why not? Computers can do a lot of things!Fr

40、ank: Maybe, but human beings created computers!Amy: Thats true .A2Frank: Which kind of computers are better,desktops or laptops?Amy: Laptops, I think.Frank: Why?Amy: Laptops are lighter. Theyre easier to carry around than desktops!Frank: Yes, but desktops are often cheaper than laptops. And I dont r

41、eally have much money. Amy: Well, then a desktop is probably a better choice for you.Step 4 Talking Go around the class and interview other students. Make notes of their answers. Then each group should report their findings to the class. Use the following questions to help you.1. Do you have a compu

42、ter at home?_2. How often do you use the computer?_3. What do you usually do on the computer?_4. How much time do you spend playing computer games every day?_5. How do you use the computer to help you study?_6.You own questions:_Step 5 Homework1. 運用重音和特別重音的知識，朗讀教材第39至40頁的對話。2. 背誦單元的單詞和短語。Reflect:Uni

43、t 3 ComputersPeriod 7教學內(nèi)容：Listening教學目標：語言知識：1. 認讀和理解單詞company,order,price,total 和短語grand total;2. 聽一段訂購辦公用品的電話對話，掌握電話對話購物的用品。語言技能：1. 通過聽一段訂購辦公用品的電話錄音，訓練在聽的過程中能準確捕捉特定信息的技能；2. 運用速記的方法，能準確記錄辦公用品型號、數(shù)量、單價各物品總價和所有物品的總價等關(guān)鍵信息。文化意識：了解計算機和互聯(lián)網(wǎng)技術(shù)日新月異的發(fā)展。學習策略：1. 提高聽力中獲取關(guān)鍵信息的能力；2. 提高聽前預(yù)測能力。Teaching procedures:St

44、ep 1Pre-listening1. Brainstorming A.Which do you like/dislike? Why? B.Which do you prefer, shopping on the phone or on the Internet ? Why?2. PredictionStep 2While-listening1.Listen to the tap carefully and complete the table with the key words.2. Check the answer.1. A1961 150 1,500 2.C4091 1,200 1,2

45、00 3.300 4.3,000Step 3Post-listeningRole play: A:Man B:Mabel和同伴開展對話活動，其中一個扮演顧客Mabel，一個扮演銷售人員。A:Top office.How may I help you?B:This Mabel Wang from Hi-Lo company.Id like to place an order,please.A:Good morning,Ms Wang.What would you like to order?B:Ill give you the numbers.First is A1691.A:A1691.Tha

46、ts A4 paper.B:Id like ten boxes,please.A:Ten boxes,at 150 yuan each.Thats 1,500 yuan.Anything else?B:Yes,Id like a monitor.Its number is C4091.A:C4091.Its 1,200 yuan now.B:I need some CDs too.The number is D2791.Id like to order fives boxes.How much is one box?A:One box is 60 yuan,so the price for f

47、ive boxes is 300yuan.B:OK.Thats all.A:Altogether thats 3,000 yuan. Thank you very much.Well send you those tomorrow morning.B:Great.Thank you.Goodbye.A:Goodbye.Step 4 Homework1. 完成英語（八年級 上冊）B第38至39頁Listening。2. A層同學背文章第二部分。Reflect:Unit 3 ComputersPeriod 8教學內(nèi)容：Writing教學目標：語言知識：1. 了解英語書信的格式；2. 掌握英語書信的寫作類型。語言技能：根據(jù)實