unit3 computers知识精讲 人教实验版

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1、Unit3Computers知识精讲一.本周教学内容：Unit3Computers1.重点单词短语用法讲解2.课文难点句解析二.知识总结与归纳：单元内容简介：学习计算机的发展历史，了解计算机在人类生产生活中发挥的重要作用。三.重点讲解与归纳：1.…discusswhattheyhaveincommon.discuss:讨论discusssth.discussdoingsth.discuss+wh从句discuss+疑问词+不定式eg.Wediscussedthelatestnewsovertea.Theydiscussedgivinga

2、bigsurprisetoyou.Wearediscussingwhetherweshouldgiveyoutheexam.Theleadersarediscussinghowtodealwiththesituation.n.discussionhaveadiscussion讨论underdiscussion在讨论中incommon:共有，共享（在句中多作状语）common:1）普通的，常见的commonsense常识commonpeople老百姓acommonmistake常见错误2）共有的，公共的commonpoverty公共财产c

3、ommoninterests公共利益3）incommon共有Thetwomenownthecompanyincommon.4）have…incommon（with）与……共有Theyhavenothingincommonwitheachother.havelittleincommonhavesomethingincommonhavealotincommon5）incommonwith…（=like…）Incommonwithmanyyoungpeople,Ilikemusic.辨析：common:“普通的，一般的”，符合或具有全体所共有

4、的特征。usual：通常指所熟悉的东西或经常发生的事件的性质。e.g.Todayshecameatherusualtime.ordinary:侧重表示“外表平凡，平平常常，随时可以碰到”，着重平淡无奇。e.g.Heisanordinarylookingman.2.Usesomeofthefollowingexpressionsinyourdiscussion.following:下列的，接着的inthefollowingyear=inthenextyear=intheyearthatfollowsfollow:v.跟随，追随,听从fol

5、lowone’sadvice听从某人的劝告followtheexampleof…以……为榜样expression:表达，表情Herexpressionshowedthatshewasangry.express:v.表达expressoneself3.inmyopinion…以我的看法……inone’sopinion=intheopinionofsb.e.g.Intheopinionofmanypeople,thisisnotagoodplan.haveagood/bad/high/lowopinionof…=thinkwell/badl

6、y/highly/lowlyof…4.Ibeganonlyasacalculatingmachinein1642inFrance.calculate:vt.&vi.计算Ihaven’tcalculatethefinalscore.Thecomputercalculatesveryquickly.calculation:n.计算calculator:n.计算器5.IwasbuiltasanAnalyticalMachinebyCharlesBabbage.analytical:分析的analyze:v.分析analysis:n.分析6.A

7、tthattimeitwasatechnologicalrevolution!technologicalrevolution:技术革命technological：adj.技术的technology:n.技术（总称）technique:n.某种技能，技巧7.…andbuilda“universalmachine”tosolveanymathematicalproblem.universal:普遍的，通用的,宇宙的,世界的Itisauniversaltruth.Englishisauniversallanguage.universe:n.宇

8、宙solve:解决Theboysolvedthedifficultproblembyhimselfatlast.solution:n.8.PeoplethoughtIwassimple-mindedunti