高中英语 Unit3 Computers教案 新人教版必修2.doc

unit 3 computers教学目的和要求（teaching aims and demands）类别课程标准要求掌握的项目话题information technology；history and basic knowledge of computersrobots词汇calculate calculator pc notebook common analytical simplesimple-minded technology technological revolution universalmathematical artificial intelligence anyway totally networktruly race birth it advantage disadvantage type disagreechoice material personally create coach move arise brainmop wander词组、短语in common in ones opinion go by so . that . deal withhuman race in a way make up with the help of after allwatch over功能1.做出决定（making decisions）i think that .in my opinion .i believe that .lets make our decision.ive decided that .2.推理（reasoning）the advantage/disadvantage is .whats your reason?why do you think so?i think this one is better because .i dont like this one because .语法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.随堂练习1、go over the story and discuss with your partner who the speaker is in this story.now write down three sentences from the story to support your idea.it is a computer because it describes：itself as the analytical machine designed by charles babbage（which was the first design of a computer）. then in 1822 i was built as an analytical machine by charlesbabbage.alan turing as its real father（and he designed the first real computer）. “myreal father was alan turing .”having artificial intelligence（which only computers have）. people have naturalintelligence. “however, people thought i was simple-minded until they discoveredi hadartificial intelligence.”2、look at the timeline below. fill in the blanks with information from the readingabove.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 peoples 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。sound+形容词，意为“听起来如何”，sound like+名词，是“听起来像”的意思。it sounds like a train. lets hurry.（a train可数名词，注意冠词） 快点，这听起来好像是火车的声音。it sounds like water. didnt you turn off the tape?（water，不可数名词） 听起来好像是水的声音，难道你没有关水龙头？what he said sounded reasonable. 他说的话听起来好像有道理。2、my real father was alan turing who in 1936 wrote a book to describe how computerscould be made to work and built a“universal machine”to solve any mathematicalproblem.我真正的父亲是艾伦图林，他1936年曾写过一本书，书中描写了使计算机工作的方法，并且他还制作了一台“通用机器”来解决数学问题。这是一个定语从句，它属于a句型。no one could recognize me after i got my new transistors in the 1960s. 20世纪60年代我有了新的晶体管之后，就没有人能认出我了。关于“在某年、某月、某年代”的表达：in 1960=in the year 1960 在1960年in september, 1960=in the september of 1960 在1960年9月in the 1960s=in the 1960s 在20世纪60年代3、i love being used to connect people who arent close enough to speak to eachother.我喜欢被相距遥远的人们用来彼此联系。love to do和love doing的意思差不多，都是“喜欢做某事”的意思，细微区别是loveto do侧重具体的、某一次的动作，而love doing强调经常性的动作。这样的动词常见的还有like，begin，start等。但是would/should love和would/should like之后必须接to do。i like swimming very much, but i dont like to swim in such bad weather today. 我（平时）非常喜欢游泳，但今天天气太差，我不想游。i love to stay（staying）outside when it is too hot. 天气热的时候我喜欢呆在外边。.would you like to go there with us? .yes, id like to. 你愿意和我们一起到那儿去吗？ 愿意。4、i think we can work together to create an even better system.我觉得我们可以合作创造出一个更好的系统。even，still，much，a lot，a great deal，a little，a bit，no之后都可以接形容词或副词的比较级。he is trying to make even greater progress. 他正尽力争取更大的进步。the boy is far taller than before. 这男孩比以前高多了。it is a little cooler today than yesterday. 今天比昨天凉爽一点。he is no richer than i. =he is as poor as i. 他和我一样穷。you have done a lot better than i expected. 你做的比我预料的要好得多。5、in a way, my programmer is like my coach.从某种程度上看，我的程序员好比是我的教练。in a way在某种程度上，从某个意义上说by the way顺便问（说）on the（ones）way在路上in a way, her english has improved but there is still a long way to go. 从某种程度上看，她的英语有进步，但对她来说，路还很长。his teacher considers him clever and in a way he is right. 他的老师认为他很聪明，从某些方面看，老师是对的。by the way, at what time will you start? 顺便问一下，你们几点出发？on our way home, we were caught in the rain. 在回家的路上，我们淋雨了。6、after all, with the help of my computer brain, which never forget anything,intelligence is what im all about.不管怎样，在我过目不忘的计算机头脑的帮助下，智能就是我的一切。after all尽管；到底（最终）；究竟；毕竟dont scold her. after all, she is a five-year-old girl. 别责备她，毕竟她还是一个五岁的女孩。so you see, i was right after all. 所以你看，（最终）我还是对了吧。语法：1、被动语态的结构：主语+be动词的不同时态+过去分词（by）+（其它）现在完成时的被动语态：主语+have/has+been+过去分词+（by）+（其它）2、revise the passive voice and look at the tense used here.example：as the years have gone by, i have been made smaller and smaller.can you pick out the other two sentences in the present perfect passive voicefrom the reading passage?1 . my family and i have been used by billions of people to deal with information .2 i have truly been built to serve the human race .3、change the following sentences into the present perfect passive voice. put theverbs into the correct form.examples：we have made a plan. a plan has been made by us.he has fixed the computer. the computer has been fixed by him.1 we have bought a new personal computer.a new personal computer has been bought by us.2 we have found many problems with our new computer.many problems have been found with our new computer.3 they have built a pc the way we wanted.a pc has been built the way we wanted.4 they have just joined our computer to the internet. our computer has just been joined to the internet.5 we have used the computer every day since we bought it.the computer has been used every day by us since we bought it.6 we have written a lot of e-mails on the computer in the past year.a lot of e-mails have been written on the computer in the past year.重点词汇1、common adj. 共同的；共有的in common 共同；共有have/has sth in common with sb. 与某人有共同语言（共同之处）have/has sth in common 共同使用；共同拥有they have english as a common language.他们都把英语作为共同语言。we are good friends and we have common interest.我们是好朋友，我们有共同兴趣。i dont know why she has nothing in common with us.我不知道她为什么和我们没有共同语言（共同之处）。there is only one computer in this room, so we have to have it in common.房间里只有一台电脑，我们只好共有。2、anyway=anyhow 无论如何，无论怎样the house is locked and i cant get in anyway/anyhow.房门锁着，无论怎样我也进不去。anyway/anyhow i shall not go there today.无论如何我今天不会到那儿去。it is raining hard. anyway, we must finish it no time.在下大雨，但无论如何我们必须按时完成任务。3、so . that，such . that . 如此以至于，比较以下例句，归纳so . that和such . that .的区别：he was so tired that he couldnt walk any longer.他如此只累，以至于一步也走不动了。he ran so fast that nobody could catch up with him.他跑得如此之快，以至于没有人能赶上他。it is so interesting a film that everyone likes to see it.=it is such an interesting film that everyone likes to see it.这部电影如此有趣，（以至于）人人喜欢看。it is such dirty water that nobody dares to drink.水如此之脏，没有人敢喝。she bought such expensive clothes that she spend up the money.她买的衣服如此贵，（以至于）把钱花光了。小结：so后面接形容词、副词、和可数名词的单数，但冠词在形容词之后。such之后接不可数名词、可数名词的复数和单数名词。4、deal with 处理；对付 do with 处理；容忍；将就这两个短语都有“处理”的意思，区别在于deal是不及物动词，不能接宾语，而do是及物动词，可以接宾语。there is so much water in the room. what will you do with it?=there is so much water in the room. how will you deal with it?房间里这么多水，你如何处置？第一句中的what为及物动词do的宾语，第二句中的how作deal with it的状语，how不可换为what。tell me what you did with yourself on sundays?=tell me how you dealt with yourself on sundays?告诉我你星期天是怎样度过的？this fellow is hard to deal with.这家伙很难对付。5、choose vt.&vi. 选择；挑选 choice n. 选择；挑选重要句型：cannot choose but do=have n