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1、.,Unit 4 A museum piece,.,Museum 博物馆,.,museum piece 古董,.,PC = Personal Computer,Its an Apple 2.,Whats this?,.,第一台个人电脑是apple公司制造的 Apple（苹果电脑）是美国著名老牌计算机公司，成立于1977年，是个人电脑最早的倡导者和著名生产商。它所生产的苹果系列电脑，包括iMac，PowerMac，ibook，Powerbook等产品线的众多硬件产品，一直是个人电脑市场的主流产品之一，并曾提出过很多新概念，其产品也掀起过多次流行潮，风行一时。目前，苹果电脑电脑公司在全球几十个国家
2、建立了分公司或代表机构，其产品也行销全世界.,.,Its the first personal computer,It came onto the market in 1977.,Its a very early computer.,Come onto market 面世,.,Attic,阁楼,Where did you find it?,.,Mum found it in a box in the attic.,It has been there for years.,find-found-found,.,Its been there since we moved into this hou
3、se.,Its mine!,mine=my PC.,自从,.,It hasnt been out of its box for 20 years.,.,Hard disk,.,lawnmower,.,Hard disk sounds like lawnmower,听起来像,feel like,look like,smell like,taste like,It is niosy!,.,Hard disk space (空间).,5 Megabyte =5MB Thats nothing.,.,Its just got 5 Megabytes hard disk space.,.,It was
4、already a museum piece when I bought it.,buy- bought-bought,.,It was already a museum piece when I bought it, and that was a long time ago. Maybe （也许） Im a museum piece now, too!,is was 过去式 buy bought,when I bought it 当我买它的时候 （过去时间，用过去时),a long time ago 很久以前 （过去时间，用过去时）,.,Listen to MP3 and answer th
5、e question.,How long has the computer been in the attic?,20 years,.,Watch the DVD and repeat after it.,.,现在完成时：,Have/has + 动词过去分词 表示动词发生在过去，持续到现在或对现在产生影响，后接表示延续性的时间状语。 如： for+ 时间段 since+ 时间点 I have been to America since d 1998. I have got the car for d five years.,.,情态动词+动词原形,can, must, may 等都是情态动词，
6、不能独立做谓语，需和实义动词连用。变一般疑问句时将情态动词直接提前至句首。 I can open the box. (变一般疑问句) Can you open the box?,.,Robert: Whats this, Dad? William: Its Apple 2. Its a very early computer. In fact (事实上), its the first Personal Computer, ever(曾今). It came onto the market（面世） in 1977. Where did you find it?,the first 第一 the
7、second 第二 the third 第三,Where 特殊疑问词，在哪,PC: personal computer 个人电脑,.,第一台个人电脑是apple公司制造的 Apple（苹果电脑）是美国著名老牌计算机公司，成立于1977年，是个人电脑最早的倡导者和著名生产商。它所生产的苹果系列电脑，包括iMac，PowerMac，ibook，Powerbook等产品线的众多硬件产品，一直是个人电脑市场的主流产品之一，并曾提出过很多新概念，其产品也掀起过多次流行潮，风行一时。目前，苹果电脑电脑公司在全球几十个国家建立了分公司或代表机构，其产品也行销全世界.,.,Robert: Mum found
8、it in a box in the attic(阁楼). William: Oh, then its mine! Its been there for years. In fact, its been there since we moved into this house!,find - found 发现,Mine = my thing,Its been = it has been 现在完成时 have/has +动词过去分词,.,现在完成时：,Have/has + 动词过去分词 表示动词发生在过去，持续到现在或对现在产生影响，后接表示延续性的时间状语。 如： for+ 时间段 since
9、+ 时间点 I have been to America since d 1998. I have got the car for d five years.,.,six month three years,Sunday ten o clock last weekend,a long time,1996 January,for,for,since,since,.,Robert: Does it still（仍然） work? William: I dont know Ah, there you are! Can you hear the hard disk（硬盘）?,Can 是情态动词，表示能
10、够，有能力做某事。 Can + 动词的原形，变一般疑问句时将Can提前至句首。,.,情态动词+动词原形,can, must, may 等都是情态动词，不能独立做谓语，需和实义动词连用。变一般疑问句时将情态动词直接提前至句首。 I can open the box. (变一般疑问句) Can you open the box?,.,Robert: Is that noise （噪音） the hard disk? It sounds like a lawnmower (割草机)! William: It is noisy （吵闹的，嘈杂的）! It hasnt been out of its b
11、ox for twenty years!,sound like 听起来像,for + 时间段,.,Robert: What can you do with it? William: Good question! Its just a museum piece （古董）, really. Its only got five Megabytes （兆） hard disk space (空间). Robert: Five Megabytes! Thats nothing! （太微不足道了）,Its got= it has got (has got 有),.,William: I know. It
12、was already a museum piece when I bought it, and that was a long time ago. Maybe （也许） Im a museum piece now, too!,is was 过去式 buy bought,when I bought it 当我买它的时候 （过去时间，用过去时),a long time ago 很久以前 （过去时间，用过去时）,.,现在完成时VS 一般过去时,.,Homework 1. 看DVD第4单元，并跟读； 2. P28单词每个抄写一遍，朗读三遍并记忆，要求会默；背诵26-27的任选三段课文。 4. 练习册做Unit4部分。,.,Homework,1. 看DVD第4单元，并跟读； 2. P28单词每个抄写一遍，朗读三遍并记忆，要求会默；背诵26-27的任选三段课文。 4. 练习册做Unit4部分。,
