step by step3000 第一册unit 5答案Word格式文档下载.docx

step by step3000 第一册unit 5答案Word格式文档下载.docx

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6.December1994/erase/destroy

7.December1998

B:

Onefeatureoftheinformationsuperhighaisthatthetraffictravlesfast,andtechiesusetheirownspecialshorthandtokeepmesageszoomingalong.Todaywe’lhelpyoudecodetachtalkbyansweringsoomenotsofrequentlyaskedquestionsaboutabbreviationsontheInternet.

WhatdoesitmeanwhenamessageincludesthelettersAISIorIMHO?

AISIstandsfor“asIseeit”andIMHOisshorthandfor“inmyhumbleopinion”.

SomemodestfolkswillalsoaddFWIWbeforesharingtheiropinion,whichstandfor“forwhatit’sworth”.OthersexpresstheirdisapprovalwiththelettersCMIIW.Thatis“correctmeifI’mwrong”

ThelsitofcommonlyabbreviatedphrasesontehNetisneaerlyendless.Asamatteroffact,AAMOFstandsfor“asamatteroffact”and“believeitornot”getspostedasBION.

Arethereanypre-Information-Ageabbreviationsstillmakingttehroundsinthishigh-techera?

Youbet.TheoldstadnbysFYI,MYOB,andSOPwhichstandfor“foryourinformantion”,“mindyourownbusiness,”and“standardoperatingprocedure”arestillfrequentlyusedtodayeveninemail.

Sincetimeisgettingshort,ahstheNetgivenustrulyshortandclearwaystosaygood-bye?

TryTAFN（That’sallfornow）andBCNU（beseein’you）.

C:

1.TimBerners-LeeisthemanwhowrotethesoftwareprogramthatledtothefoundationoftheWorldWideWeb

2.Inthe1980sscientistswereralreadycommunicatingusingaprimitiveversionofemail.

3.in1990TimBerners-LeewroteprogramswhichfromthebasisoftheWorldWideWeb

4.in1991hisprogramswereplacedontheInternet.

5.between1991and1994thenumberofwebpagesrosefrom10to100,000.

6.rightnowtheworldisfocusedone-commerce.

7.Theinventionfothewebbrigngsrapidrewardstopeoplewitimaginationandnewideas.

PartII

A1

Connected/system/connection/worktogether/stations/people

A2

Connectionofrailroadsorothervehicles

Connectedsystemofradiostations

Systemlinkinganumberofcomputerstogether.

Fewthingsinthisworldchangeasfastaslanguages.Everyday,newwordsarecreatedtodealwithnewideasornewtechnologies.Newmeangingalsoareaddedtoexisitngwords.Adictionarypublishedyearsagomayshowoneortwomeanignforaword;

adictionarypublishedtodaymaylistseveralmoremeaningforthesameword.

Networkisonesuchword.Itcombinestwowords.Thefirstis“net”,itmeansmaterialsthatareconnected;

thesecondis“work”.Onemeaningof“work”isasystem.Networkmeansaconnectionofsystemsthatworktogether.Thesystemsthatnetworksconnectcanbeverydifferent.Forexample,radioandtelevisionstationscanbeconnectedinthenetwork,socancomputersandevenpeople.

WordexpertMilfordMatthewfoundwrittenusesoftheword“network”inthelate1980s.thewordthenwasusedasaverb,awordthatshowaction.Atthattimenetworkmeanttheconnectionofrailroadsorothervehiclesusedfortravel.OnepublicationsaiditisonlyaquestionoftimewhentherailroadswillnetworkanareaoftheAmericanwestcalledthe“PanHandle”.Anotherpublicationofthetimesaidcompleteareasarenetworkedbytrolleycars,whichareakindofelectrictrain.

Nowweoftenhearnetworkusedinconnectionswithbroadcasting.TheBarnhartDictionaryofNewEnglishsaysthatasearlyas1914,peopleusedittomeanaconnectedsystemofradiostations.Thismeaningcontinuestobepopular.Amoremodernuseoftheword“network”islinkedtocomputers.Anetworkisasystemthatlinksanumberofcomputerstogether.Networksmakeitpossibleforpeoplewhousecomputerstoshareinformationincostlyequipment.Manycompaniesandgovernmentagenciessharethesamecomputernetwork.Thecomputersarelinkedthroughamaincomputerorthroughspeciallines.Somepeopleareabletodotheirjobsfromtheirhomecomputers.

Computersnetworksalsopermitanexchangeofunofficialinformationanddiscussionbetweencomputerusers.Bylinkingtheircomputerstotelephones,peoplecanbuygoodsthroughtheircomputers.Theycansendmessagestofriendsinmanycountries.

Anothermodernuseoftheword“network”concernsrelationsbetweenpeople.Ideasandinformationareexchangedbypeoplewhonetworktoshareinterestsandgoals.ManyAmericansnetworktogetbetterjobsortomeetnewfriends.Meetingnewfriendsbynetworkingisnotworkthoughisfun.

B

B1

b.Gettingassignmentsandresearchpapers

c.Attendingprofessors’“virtualofficehours”

d.Courselectures.

Entertainmentb.onlinegames

Communicationsb.toll-freephonecalls

e-commerceorders.

原文:

TheproposedmergerofAmericaOnlineandTimeWarneranticipatesanagewhenhigh-speedInternetaccessiseverything.Itwillbepipelineforalmostalltheentertainment,communicationsandinformationthatpeopleconsume.

ItisanerasodistanttomostAmericansthattheycanhardlyenviousit.Andyetisalreadyexists.Infact,itistheonlyworldthattoday’scollegestudentsknow.CollegesacrosstheUnitedSateshavespenthundredsofmillionsofdollarsinrecentyearswiringdormitoriesforhigh-speedInternetaccess.

Whenadmissionspeoplegooutandtalktostudentsthesedays,thestudentsalwaysasks,“Doyouhaveahigh-speednetwork?

”indeed,frotoday’sstudents,havinghigh-speedInternetaccessisatoppriority.Theybasetheirhousingdecisionsonit,andrestructuretheirmeagerstudentbudgetstoaffordit.

Collegeadministratorsacknowledgethatacademicpursuitsarejustafractionoftheactivityontheircampusnetworks.Thebulkofthetrafficconsistsofdatacontainingmusicfiles,instantmessages,toll-freephonescalls,e-commerceorders,onlinegamesandjustaboutanything.

Ataahigh-risedormattheUniversityofSouthernCalifornia,walkingdownthehallwayontheeighthflooralmostanytimeofdya,you’relikelytohearstudentsinseparateroomsshoutingateachother---“Youkilledme!

”astheymoweachotherdowninonlinegamesplayedoverthenetwork.Friendsfromoppositeendsofthefloorsimultaneouslymakefortheelevators.They’vejustmessagedeachotherbycomputerthatit’stimetoheadofftothediningcommons.Tothem,knockingonsomeone’sdoorisanantiquated20thcenturytradition.

Today’sstudentsregisterforclasses,gettheirhomeworkassignments,researchpapersandattendprofessors’“virtualofficehours”online.SomeuniversitiesevenpostcourselecturesontheNet,sothatstudentscanreviewthemanytimetheywish.

Justasonethestudentsputit“WeliveourlivesovertheInternet.”

PartIII

A

1.Thedesktopintooureverydaylife.

2.Experimentinganarchy

3.Disappear

4.Econmonies

A:

we’regonnatakeacloserlooktonightagainatthefutureoftheInternet.Notthatwehaveanythingbutthevaguestideawhereit’sgoinginthelongrun.OneofthetrulyfascinatingandsomewhatunsettlingaspectsoftheInternetrevolutionishowmanytechnologistsandscientistssaythatthefuturemayholdanynumberofsurprises.Sowe’regoingtoinchourwayintothefuture.

P:

AttheInternetWorldTradeShowinNewYork,theyseeafuturewhenthewebiseverywhere.

St:

Technologyismovingfromthedesktopintooureverydaylife.

Imaginework,society,economics,relationships,alltransformed,whenanyone,anytimecangetanymessageorknowledgeoramusementtheywant,anywhereontheplanetwithoutsomuchasawire.

S2:

inmanyways,theInternetistheworld’slargestexperimentinganarchy,becauseallofasudden,thecitizensoftheworldareincharge,andnosinglegovernmentorgoverningbodyisinchargeofwhattheydo.

Keepinmindthattheweb,transmittingbysatellites,cellphone,cable,goesthroughnoonecentrallocationthatanyonecontrols.Somanyoftheboundariesthatexisttoday,politicalandeconomic,willbestrainedasneverbefore.Somescientistssaythreequartersoftheworld’slanguageswilldisappearasthenetconnectsisolatedplaces.AlreadyEnglishiswhatyoufindonmostwebpages,blendingcultures,nomatterhowmuchpeopletrytosavethem.Economiesarechangingtoo.Asdistancebecomesmeaningless,white-collarclerical,accountingoradministrativejobsarebeingexportedtoAsia,justasblue-collarfactoryjobswereyearsago.

S3:

Imagine,thereare40or50millionIndians,nottomentiontheChinese,whocoulddeliverofficeworktotherichcountriesoftheworldfortwodollarsanhour.

Sothismassivewebofinformationisbothanassetandathreat,changingcultures,economies,governments,inwaysnoonecanimagineorcontrol.

B

Persontoperson/realmanymorereal/friends

1.Relatives1.Careers

2.2.Medicalcries

3.Neighbors

4.Colleagues

5.Byphone4.Choosingaschoolorcollege

There’saprofessorattheUniversityofTorontoinCanadawhohascomeupwithatermtodescribethewayalotofusNorthAmericansinteractthesedays.Andnowabigresearchstudyconfirmsit.

BarryWellman’stermis“networkindividualism”.It’snottheeasiestconcepttograsp.Infact,thewordsseemstocontradicteachother.Howcanwebeindividualisticandnetworkedatthesametime?

Youneedotherpeoplefornetworks.

Here’swhathemeans.UntiltheInternetandemailcamealong,oursocialnetworksinvolvedflesh-and-bloodrelatives,friends,neighbors,andcolleaguesatwork.Someoftheinteractionwasbyphone,butitwasstillvoicetovoice,persontoperson,inrealtime.

ButthelateststudybythePewInt4rnetandAmericanLifeProjectco