step by step3000 第一册unit 5答案.docx
《step by step3000 第一册unit 5答案.docx》由会员分享,可在线阅读,更多相关《step by step3000 第一册unit 5答案.docx(7页珍藏版)》请在冰豆网上搜索。
stepbystep3000第一册unit5答案
Unit5
PartI
A]
1.Octorber1969/firstemailmessage
2.March1972/addresses
3.February1976/headofstate
4.fall1976/JimmyCarter/US$4
5.September1983/highereducation/accounts
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.
P:
Imaginework,society,economics,relationships,alltransformed,whenanyone,anytimecangetanymessageorknowledgeoramusementtheywant,anywhereontheplanetwithoutsomuchasawire.
S2:
inmanyways,theInternetistheworld’slargestexperimentinganarchy,becauseallofasudden,thecitizensoftheworldareincharge,andnosinglegovernmentorgoverningbodyisinchargeofwhattheydo.
P:
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.
P:
Sothismassivewebofinformationisbothanassetandathreat,changingcultures,economies,governments,inwaysnoonecanimagineorcontrol.
B
B1
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