沪教牛津版初二英语上册第三单元Unit3Computers知识点总结单词短语习题教案

沪教牛津版初二英语上册第三单元Unit3Computers知识点总结单词短语习题教案单元概览一、核心词汇(CoreVocabulary)扎实掌握单元核心词汇是学好本单元的基础。以下词汇按主题分类，便于理解和记忆：*machine(n.)机器**例句：Thisnewmachinecanworkveryfast.**screen(n.)屏幕**例句：Pleaselookatthescreenandreadthewords.**keyboard(n.)键盘**例句：Youcantypewordsonthekeyboard.**mouse(n.)鼠标(复数:mice/mouses)**例句：Movethemousetoclickontheicon.**mousepad(n.)鼠标垫*speaker(n.)扬声器，喇叭*printer(n.)打印机**例句：Weneedaprintertoprintthedocument.**CPU(n.)中央处理器(CentralProcessingUnit)*memory(n.)存储器，内存*harddisk(n.)硬盘**例句：Allmyphotosarestoredontheharddisk.**icon(n.)图标**例句：Clickontheicontoopentheprogram.**button(n.)按钮2.计算机功能与用途(Functions&Uses)*calculate(v.)计算*type(v.)打字(n.)类型*store(v.)存储，保存(n.)商店*process(v.)处理(n.)过程，程序*search(v.&n.)搜索**例句：IoftensearchforinformationontheInternet.**send(v.)发送(sent,sent)*receive(v.)接收*connect(v.)连接*play(v.)玩，播放*learn(v.)学习*work(v.)工作(n.)工作3.计算机操作与应用(Operations&Applications)*use(v.&n.)使用**例句：Doyouknowhowtousethissoftware?**start(v.)启动，开始*shutdown(v.)关闭(计算机等)*click(v.&n.)点击**例句：Clicktheleftmousebutton.**open(v.)打开(adj.)开着的**例句：Openthefile,please.**close(v.)关闭(adj.)近的，亲密的**例句：Closethewindowwhenyouleave.**save(v.)保存，拯救**例句：Don'tforgettosaveyourwork.**print(v.)打印**例句：Ineedtoprintthisreport.**program(n.)程序(v.)编程*software(n.)软件**例句：Weneedtoinstallsomesoftware.**hardware(n.)硬件*Internet(n.)互联网**例句：WecangetinformationfromtheInternet.**website(n.)网站**例句：Thisisaveryusefulwebsite.*4.计算机发展与影响(Development&Impact)*invent(v.)发明*improve(v.)改进，提高*important(adj.)重要的*useful(adj.)有用的*powerful(adj.)强大的，有力量的*small(adj.)小的*fast(adj.&adv.)快的(地)*slow(adj.&adv.)慢的(地)二、重点短语(KeyPhrases)*turnon打开(电器等)*turnoff关闭(电器等)**例句：Turnoffthelightswhenyouleave.**login登录**例句：Youneedtologinwithyourusernameandpassword.**logout注销，退出登录*ontheInternet在互联网上**例句：WecanchatwithfriendsontheInternet.**searchfor搜索**例句：Sheissearchingforanewjobonline.**lookup查阅(词典、资料等)**例句：Youcanlookupnewwordsinanonlinedictionary.**dowordprocessing进行文字处理*listentomusic听音乐*watchmovies看电影**例句：Wecanwatchmoviesonlinenow.**atypeof一种*beableto能够*insteadof代替，而不是*aswell也，还有**例句：IlikeEnglish,andIlikemathaswell.**oneof...…之一*millionsof数百万的，大量的**例句：MillionsofpeopleusetheInterneteveryday.*三、核心句型与语法(KeySentencePatterns&Grammar)1.描述过去与现在的对比：usedtodosth./现在时态*usedto+动词原形:表示过去常常做某事(现在不做了)。*现在进行时/一般现在时:描述现在的情况或动作。2.情态动词can/could/beableto表示能力*can+动词原形:表示现在的能力。*could+动词原形:表示过去的能力或委婉请求。*beableto+动词原形:可用于各种时态，表示“能够”。3.被动语态(PassiveVoice)(初步感知与运用)*be+动词过去分词:强调动作的承受者。**Thisprogramwasinventedbyayoungengineer.*(这个程序是一位年轻工程师发明的。)(强调“程序”被发明)4.如何描述事物的功能/用途：*...beusedfordoingsth./todosth.**Aprinterisusedforprintingdocuments.*(打印机是用来打印文件的。)*...can/could+动词原形5.特殊疑问句(Wh-questions)四、知识点梳理与拓展(KnowledgePoints&Extension)*Memory(RAM):TemporarystoragefordataandprogramsthattheCPUiscurrentlyusing.*HardDiskDrive(HDD)/SolidStateDrive(SSD):Permanentstoragefordata,programs,andtheoperatingsystem.*OutputDevices:Monitor(screen),printer,speakers,etc.(Showorproducetheresultsofprocessing.)*早期电脑体积庞大(verylarge)、速度慢(slow)、功能有限(limitedfunctions)。*随着技术的发展(withthedevelopmentoftechnology)，电脑变得越来越小(smallerandsmaller)、越来越快(fasterandfaster)、越来越强大(moreandmorepowerful)。3.计算机在不同领域的应用(ApplicationsinDifferentFields)*Education:Onlinelearning,educationalsoftware,research.*ScienceandTechnology:Scientificresearch,weatherforecasting,spaceexploration.4.互联网(TheInternet)五、单元巩固与练习(UnitConsolidation&Exercises)I.词汇拼写(VocabularySpelling)根据句意及首字母提示补全单词。3.Pleases______thedocumentbeforeyoucloseit.4.Youcans______forinformationaboutpandasontheInternet.II.短语填空(PhraseFilling)用方框中所给短语的适当形式填空。1.Myfather______smoke,butnowhedoesn't.2.Canyouhelpme______thenewprinter?3.Ioften______tomyfriendsinothercountries.4.Youwill______speakEnglishwellifyoupracticehard.III.单项选择(MultipleChoice)A.usetobeB.usedtobeC.areusedtobeD.wereusedtobe()2.Wecan______informationfromtheInternet.A.searchB.findC.lookD.see()3.Aprinter______