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1Unit3Computers几乎所有的青少年都对上网冲浪感兴趣。但是你对网络了解多少呢？本文帮助你去了解它。TheInternetisbecomingimportantinourlife.Hereissomethingaboutit.WhatistheInternet?TheInternetisalarge，worldwidecollectionofcomputernetworks.Anetworkisasmallgroupofcomputersputtogether.TheInternetismanydifferentnetworksfromallovertheworld.OnceyouhavelearnedtousetheInternet，youcandoalotofinterestingthingsontheWorldWideWeb.WhatistheWorldWideWeb?TheWorldWideWebhasbeenthemostpopulardevelopmentoftheInternet.TheWebislikeabigelectronicbookwithmillionsofpages.Thesepagesarecalledhomepages.Youcanfindinformationaboutalmostanythingintheworldonthesepages.Forexample，youcanusetheInternetinsteadofalibrarytofindinformationforyourhomework.Youcanalsofindinformationaboutyourfavoritesportorfilmstar，talktoyourfriendsorevendosomeshoppingonthepages.Mostpageshavewords，picturesandevensoundormusic.Whatise-mail?Electronicmailisawayofsendingmessagestootherpeople.It'smuchquickerandcheaperthansendingaletter.Ifyouwanttousee-mail，youmusthaveane-mailaddress.Thisaddressmusthavelettersanddotsandan“@”(meaning“at”)．Thisiswhatanaddresslookslike：Emily@star.net.Writeamessage，typeintheperson'se-mailaddress，andthensendthemessageacrosstheInternet.Peopledon'tneedtousestamps，envelopesorgotothepostofficesincetheinventionoftheInternet.Quick，easyandinteresting—that'stheInternet![阅读障碍词]1．collectionn．收集物；收藏品2．homepagen.主页3．dotn.点4．addressn.地址5．inventionn.发明2[诱思导读]1．Whatdoestheword“e”in“e-mail”standfor?2．DoyoulikeshoppingontheInternet？Why?3．Whatisthebesttitleforthetext?A．TheInternetB．TheE-mailC．TheWorldWideWebD．TheComputer[答案]1.Itstandsfor“electronic”．2．略3.ASectionⅠWarmingUp，Prereading&ReadingⅠ.匹配下列单词的词性及汉语意思()1.calculateA．adj.普遍的；通用的；宇宙的()2.universalB．vt.计算()3.simplifyC．n.革命()4.technologyD．n.工艺；科技；技术()5.revolutionE．vt.简化()6.artificialF．adj.人造的；假的()7.intelligenceG．vt.解决；解答()8.solveH．n.真实；事实；现实()9.realityI．n.智力；聪明；智能()10.exploreJ．vt.&vi.探索；探测；探究[答案]1－5BAEDC6－10FIGHJⅡ.选择下列句中相应词组的汉语意思A．计算出B．从……时起C．有……共同点；共享……D．结果E．与……分享……F．逝去()1.JaneandIhavenothingincommon.Thatistosay，wearecompletelydifferent.()2.Theareacaneasilybeworkedoutifyouknowthelengthandthebreadth(宽度)．3()3.Thetwocountrieshavebeenatwarforseveralyears.Asaresult，peopletherehavesufferedalot.()4.Thiswentonforseveralyears.Monthswouldgobywithoutthemseeingeachanother.()5.Fromthenon，hemadeuphismindtoworkhard.()6.I'llsharemyapplewithyouifyougivemehalfofyourcake.[答案]1－6CADFBEWHOAMI?OvertimeIhavebeenchangedquitealot.IbeganasacalculatingmachineinFrancein1642.AlthoughIwasyoungIcouldsimplifydifficultsums(算术题)．IdevelopedveryslowlyandittooknearlytwohundredyearsbeforeIwasbuiltasananalyticalmachinebyCharlesBabbage①.AfterIwasprogrammedbyanoperator(操作员)whousedcardswithholes，Icould“think”logically(合逻辑地)andproduceananswerquickerthananyperson.Atthattimeitwasconsideredatechnologicalrevolutionandthestartofmy“artificialintelligence”．In1936myrealfather，AlanTuring，wroteabookabouthowIcouldbemadetoworkasa“universalmachine”tosolveanydifficultmathematicalproblem②.Fromthenon，Igrewrapidlybothinsizeandinbrainpower.Bythe1940sIhadgrownaslargeasaroom，andIwonderedifIwouldgrowanylarger.However，thisrealityalsoworriedmydesigners.Astimewentby③，Iwasmadesmaller.FirstasaPC(personalcomputer)andthenasalaptop，Ihavebeenusedinofficesandhomessincethe1970s.我是谁？经过一段时间我已经被改变了很多。1642年我在法国诞生时是一台计算机器。尽管当时我还年轻，但是我能简化一些复杂的算数题。我发育缓慢，差不多到了两百年之后，查尔斯·巴比奇才把我制成了一台分析机。在操作员用穿孔卡为我设计程序后，我能够进行逻辑“思考”，并且能够比任何人更快地算出答案。那时这被当作是一次技术革命，也是我“人工智能”的开始。在1936年，我真正的父亲，艾伦·图灵写了一本书，讲述了怎样使我成为一台“通用机器”来解决任何数学难题。从那时起，我在体积和智能方面迅速成长。到二十世纪四十年代，我已经长得像一间屋子那么大，我不知道是否还会长得更大。但是，这个现实也使得我的设计者很担心。随着时间的推移，我被做得更小了。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，后来又做成手提电脑。4[助读讲解]①此句使用了固定句式：Ittakes＋时间段＋before...“过了多久才……”②how引导宾语从句；tosolve...为不定式短语作目的状语。③as引导时间状语从句。Thesechangesonlybecamepossibleasmymemoryimproved.Firstitwasstoredintubes，thenontransistors(晶体管)andlateronverysmallchips(芯片)．AsaresultItotallychangedmyshape.AsIhavegrownolderIhavealsogrownsmaller.Overtimemymemoryhasdevelopedsomuchthat，likeanelephant，IneverforgetanythingIhavebeentold！④AndmymemorybecamesolargethatevenIcouldn'tbelieveit!ButIwasalwayssolonelystandingtherebymyself，untilintheearly1960stheygavemeafamilyconnectedbyanetwork(网络)⑤.IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb(网)．这些变化只有随着我的存储能力的不断提高才成为可能。最初是被存储到电子管上，以后是晶体管上，后来是非常小的芯片上。因此，我已经完全改变了我的形状。随着我年龄越来越大，我也变得越来越小。随着时间的推移，我的记忆能力发展得如此之快，就像一头大象一样，我从来不会忘记告诉我的任何事情！我的存储容量变得如此巨大，连我自己都不能相信！但是我总是孤孤单单地站在那里，直到二十世纪六十年代初，人们才给了我一个用网络联成的家庭。我能够通过万维网和其他人分享我的知识。[助读讲解]④so...that...“如此……以至于……”，引导结果状语从句，likeanelephant作方式状语；Ihavebeentold为anything的定语从句。⑤standingthere...为现在分词短语作伴随状语；until引导时间状语从句；connectedby...为过去分词短语作定语。Sincethe1970smanynewapplications(用途)havebeenfoundforme.Ihavebecomeveryimportantincommunication，financeandtrade.Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellas⑥helpwithmedicaloperations.IhaveevenbeenputintospacerocketsandsenttoexploretheMoonandMars.Anyhow，mygoal(目标)istoprovidehumanswithalifeofhighquality⑦.IamnowtrulyfilledwithhappinessthatIamadevotedfriend⑧andhelperofthehumanrace！从二十世纪七十年代起，我又被开发出了很多新的用途。我在通讯、金融和商业领域变得非常重要。我还被放在机器人里