人教版 高中英语 必修二 Unit 3 computers 语言点学案 含答案

12V重点句子(旨在提供句子结构等所需材料)1・Bythe1940s工hadgrownaslargeasaroom,andIwonderedifIwouldgrowanylarger!到20世纪40年代，我已经长到一个大房间那么大，我不知道我会不会继续长大。［解释］1).aslargeas..."有大”，后面常加数词.例如：Thisplaygroundisaslargeas500squaremeters．这个操场有500平方米那么大。2).Iwonderedif..“我不知道(奇怪)是否..”，是一个常见句式，常用于口语，表示一种委婉或客气的语气。例如：Iwonderedifyouwouldmindgivingmeahand.［练习］中译英.我也不知道他们能不能准时到。.那个男子的体重比他重一倍。Keys:.Iwonderwhethertheywillarriveontime..Thatmanistwiceasheavyashim.However,thisrealityalsoworriedmydesigners.可是这个现实也困扰着我的设计者们。［解释］howeveradv.尽管；尽管如此，可是；仍然。表示转折；可放在句首、句中或句尾，但用逗号隔开。例如：Imeanttogoabroadlastyear.However,Ichangedmymindlater.我本打算去年出国，但是后来改变了主意。［练习］中译英.她仍然在等，尽管没有任何回音。.他说事情就是那样，不过他错了。Keys:.Shewaited,however,fornoanswer..Hesaiditwasso,hewasmistaken,however.V词语辨析(旨在提供完形填空所需材料)symbol/sign/signal/mark均含“标志，象征，符号”之意。symbol指作象征或表达某种深邃意蕴的特殊事物。sign普通用词，指人们公认的事物的记号，也可指某种情况的征兆。signal指为某一目的而有意发出的信号。mark普通用词，含义广泛。既可指为便于辨认而有意做的标记，又可指自然形成的标记或有别于其他事物的特征。［应用］(1)Redcrossisaforhospital.Aredlightisusuallyaofdanger.Makeawhereyoudon'tunderstand.Aredarkcloudsaofrain?Adove(鸽子)isaforpeace.sign,signal,mark,sign,symblearise/arouse/rise/raisearise是不及物动词，在现代英语中主要用于借喻，指“出现，发生，产生”。arouse是及物动词，指“唤醒，激起”，后常跟抽象名词。rise是不及物动词，使用范围较广，指“升起，上升，增长”，也可指“起立，起床，地位升高”等。raise是及物动词，用在句中，后面需跟宾语。一般指“升起，举起，增加程度、价格等)；提高(音量)；提出；种植(农作物)；养育；抚育(子女)”。[应用2](1)Theriverisaftertherain.Hehishandinthehopeofbeingasked.Hisstrangebehaviouroursuspicions.Newproblemseveryday.rising,raised,aroused,arise提示：原形过去式过去分词v.ingarise(vi.)arosearisenarisingarouse(vt.)arousedarousedarousingrise(vi.)roserisenrisingraise(vt.)raisedraisedraisingpersonal/private/individualpersonal指属于或关于某人或某些特定的人，以区别于其他人。private指属于私人所有或具有私营性质，以区别于集体或公共的，有时含不公开的意味。individual与集体的相对，指个别或个体的。【练习】用上面所提供的辨析词的适当形式填空.Willyoudoitformeasafavour?.Ifyougotoahospital,youmustpay..Wetraveledtogether,buteachboughthisownticket.Keys:1).personal2).private3).individual课文要点1课文词汇等填空(旨在复习本课文中的单词拼写和主要词语等)根据课文内容完成下面语法填空，注意单词拼写和词语用法：OvertimeIhavebeenchangedalot.Icould1(简化)difficultsumswhenIbegan2acalculatingmachine.AfterIwasprogrammedbyanoperator,Icould3(logic)produceananswerquickerthananyperson.Atthattimeit4(consider)a5(技术的)revolution.In1936,Icouldsolvedifficultproblemsasa_6(universe)machine.Fromthenon,mymemoryhasdevelopedsomuch7Ineverforget8Ihavebeentold.Sincethe1970s,manynewapplicationshavebeenfoundforme.Forexample,IhavebeensenttoexploretheMoon.9,mygoalis10(provide)humanswithalifeofhighquality.答案：1.simplify2.as3.logically4.wasconsidered5.technological6.universalthatanything9.Anyhow10.toprovide2课文大意概括(旨在训练用30个单词概括大意的能力)阅读课文，试着用30个单词概括课文大意，再比较答案电脑作为课文的叙述者讲述了它从一部计算器发展成为电脑和手提电脑以及它在各个领域的运用。答案：Thenarrator,acomputer,tellsusaboutitsdevelopmentfromacalculatingmachinetoaPCandalaptopandhowitisusedindifferentfields.3课文佳句背诵与仿写(旨在培养对难句的理解和运用能力)【课本原句】Astimewentby,Iwasmadesmaller.FirstasaPC(personalcomputer)andthenasalaptop,Ihavebeenusedinofficesandhomessincethe1970s随着时间的推移，我被弄得越来越小。自二十世纪七十年代以来，我一直被用在办公室和家庭里，先是用作个人电脑，后来又做成便携式。［模仿要点］句子结构:first...+then...+later【模仿1】毕业以后，他先是做一名工人，接着做了一个商店的经理后来做了一个工厂的老板。答案：Aftergraduation,hefirstworkedasaworker,thenasamanagerofastoreandlaterasabossofafactory.【模仿2】从那时开始，他先在一家车厂工作，然后在一家钢厂任工程师，当其时那是一家最大的钢厂，后来又到了一家生产电脑的公司任总裁。答案：Fromthenon,hefirstworkedinacarfactory,thenasanengineerinasteelfactory,whichwasthebiggestoneatthattimeandlateraspresidentofacompanyproducingcomputers.2．【课本原句】Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellashelpwithmedicaloperations我还被放在机器人里面，被用来制作移动手机，并且用来帮助作医疗手术。［模仿要点］句子结构:aswellas【模仿1】通过上网，人们可以获得知识和乐趣。答案：Peoplecangetalotoffunaswellasusefulknowledgethroughthenet【模仿2】随着经济的快速发展，越来越多的家长能够负担得起培训课，从中他们的孩子既可以获得一些技能也可以丰富他们的生活。答案：Withtherapiddevelopmentofeconomy,moreandmoreparentsareabletoaffordtrainingclasses,inwhichtheirchildrencanacquiresomeskillsaswellasenrichtheirlife.自我测评•技能备考•单词拼写1．Don'tloseheart.（无论如何）,youcantry.rmsorrytosaythatI（彻底地）forgotaboutit.3．Inmostmathsexaminationsseniorhighschoolstudentsareallowedtouse（计算器）intheexams.Creditcardshavebroughtabouta（革命）inpeople'sspendinghabits.Unfortunately,anewdifficultyhas（出现了）.Anyhow/Anyway,totally,calculators,revolution,arisenWiththedevelopmentoft，moreandmorepracticalmachineshavebeeninvented.Pspeaking,I'mnotinfavouroftheplan.He'sverycleverandofhighi.Atfirst,Ithoughttheseflowerswerereal,buttheyarea.Whichtofteadoyouprefer?technology,Personally，intelligence，artificial，type•单项选择Whiletherearequiteafewdifferencesintheeducationsystemsinmanycountries,educationisA.usualB.regularC.normalD.universal答案：D解析：句意：许多国家的教育体制有许多不同之处，然而教育却是普及的。A.通常的；B.定期的，有规律的，C.正常的，D.普及的，普遍的。Ourschoolisverylarge.，thenumberofthestudents3500.A.Together;isB.Altogether;areC.Inall;areD.Intotal;is答案：D解析：intotal=inall=altogether是“总共，总计”的意思。thenumberof+n.做主语时，谓语动词用单数。IamnotsurewhetherIwillhaveanythingelsetodotomorrow.，_Iwilltryeverypossiblemeanstocometotheparty.A.EventhoughB.AnyhowC.IfsoD.Instead答案：B解析：句意为“我不敢肯定明天我是否有其他的事，但无论如何，我将尽可能来参加这个聚会”。—Ithinkheistakinganactivepartinsocialwork.—Iagreewithyou.A.inawayB.onthewayC.bythewayD.intheway答案：A解析：考查介词短语。inaway“从某种意义上”，合题意。Youmaynotagree,butIthinksheisaverygoodgirl.A.generallyB.trulyC.personallyD.commonly答案：C解析：考查副词。表示“依个人而言”用personally.—Whatabeautifulday!—Yes,it'sthatI'dliketotakeawalk.A.suchniceweatherB.soaniceweatherC.suchaniceweatherD.soniceweather答案：A解析：weather是不可数名词，故用such＋adj.＋weather。7．Shouldthechance，I'dlovetogoabroad.A．riseB．raiseC．ariseD．arouse答案：C解析：主语为抽象名词thechance，故选arise.8．—Whatanoise!Icanhardlystandit.—Itasiftheyarehavingapartynextdoor.A．looksB．soundsC．feelsD．happens答案：B解析：考查Itsoundsasif...“听起来像……”。9．Theterriblewarlastedeightyears.，wiveslosttheirhusbands,parentslosttheirsons,andchildrenlosttheirfathers.A．AsaresultB．AsaresultofC．InsteadD．However答案：A解析：句子强调因果关系，排除C、D项。B项应加上宾语，即asaresultofthewar.10．LastsummerItookacourseonpoisonousgases.A．howtodealwithB．whattodealwithC．howtobedealtwithD．whattobedealtwith答案：A解析：考查dealwith的用法。11．Hemindssomuchabouthispositionintheofficethatheanychancetobepromoted.A．watchesoutB．looksupC．pointsoutD．watchesfor答案：D解析：考查短语辨析。“盼望、等待提升的机会”用watchfor.watchout小心；lookup查找；pointout指出。12．thehelpoftheteacher,thestudentwhowasn'tgoodatmaththedifficultproblemquickly.A．Under;workedoutB．With;workedonC．Under;solvedD．With;solved答案：D解析：solve解决。另外“在某人的帮助下”用withthehelpofsb.来表达。13．InSeptember2008,China'skeymilestoneinspacetravelwhenZhaiZhigangconductedthefirstspacewalk.A．reachedB．wasreachedC．hasreachedD．hadbeenreached答案：B解析：由句中时间状语InSeptember2008可知应用过去时态。另外，主