step by step 3000第二册unit 59.docx
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step by step 3000第二册unit 59.docx
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stepbystep3000第二册unit59
Unit5PartIA.
October1969firstemailmessageMarch1972addressesFebruary1976
HeadofstateFall1976JimmyCarterSeptember1983HighereducationaccountsDecember1998
B.asIseeitopinionifI’mwrongasamatteroffactbelieveitornot
Informationownbusinessstandardfornowbeseein’you
Tapescript:
Onefeatureoftheinformationsuperhighwayisthatthetraffictravelsfast,andtechiesusetheirownspecialshorthandtokeepmessageszoomingalong.Todaywe’llhelpyoudecodetechtalkbyansweringsomenotsofrequentlyaskedquestionsaboutabbreviationsontheInternet.
WhatdoesitmeanwhenamessageincludesthelettersAISIorIMHO?
AISIstandsfor“asIseeit”andIMHOisshorthandfor“inmyhumbleopinion.”
SomemodestfolkswillalsoaddFWIWbeforesharingtheiropinion,whichstandsfor“forwhatit’sworth.”OthersexpresstheirdisapprovalwiththelettersCMIIW.Thatis,“correctmeifI’mwrong.”
ThelistofcommonlyabbreviatedphrasesontheNetisnearlyendless.Asamatteroffact,AAMOFstandsfor“asamatteroffact,”and“believeitornot”getspostedasBION.
Arethereanypre-Information-Ageabbreviationsstillmakingtheroundsinthishigh-techera?
Youbet.TheoldstandbysFYI,MYOBandSOPwhichstandsfor“foryourinformation,”“mindyourownbusiness,”and“standardoperatingprocedure”arestillfrequentlyusedtodayeveninemail.
Sincetimeisgettingshort,hastheNetgivenustrulyshortandclearwaystosaygood-bye?
TryTAFN(that’sallfornow),andBCNU(beseein’you).
C
1.TimBerners-Lee
2.inthe1980s
3.inthe1990
4.ontotheInternet
5.10/100,00
6.e-commerce
7.peoplewithimaginationandnewideas
Tapescript:
1.TimBerners-LeeisthemanwhowrotethesoftwareprogramthatledtothefoundationoftheWorldWideWeb./Who?
2.Inthe1980sscientistswerealreadycommunicatingusingaprimitiveversionofemail./When?
3.In1990TimBerners-LeewroteprogramswhichformthebasisoftheWorldWideWeb./When?
4.In1991hisprogramswereplacedontotheInternet./Where?
5.Between1991and1994thenumberofwebpagesrosefrom10to100,000./Howmany?
6.Rightnowtheworldisfocusedone-commerce./What?
7.Theinventionofthewebbringsrapidrewardstopeoplewithimaginationandnewideas./Towhom?
PartII
AA1:
connectedsystemconnectionstationspeople
A2:
ConnectionofrailroadsorothervehiclesConnectedsystemofradiostations
Systemlinkinganumberofcomputerstogether
Tapescript
Fewthingsinthisworldchangeasfastaslanguages.Everyday,newwordsarecreatedtodealwithnewideasornewtechnologies.Newmeaningsalsoareaddedtoexistingwords.Adictionarypublishedyearsagomayshowoneortwomeaningsforaword;adictionarypublishedtodaymaylistseveralmoremeaningsforthesameword.
Networkisonesuchword.Itcombinestwowords.Thefirstis“net,”itmeansmaterialsthatareconnected;thesecondis“work”.Onemeaningof“work”isasystem.Networkmeansaconnectionofsystemsthatworktogether.Thesystemsthatnetworksconnectcanbeverydifferent.Forexample,radioandtelevisionstationscanbeconnectedinthenetwork,socancomputersandevenpeople.
WordexpertMilfordMatthewfoundwrittenusesoftheword“network”inthelate1800s.Thewordthenwasusedasaverb,awordthatshowsaction.Atthattimenetworkmeanttheconnectionofrailroadsorothervehiclesusedfortravel.OnepublicationsaiditisonlyaquestionoftimewhentherailroadswillnetworkanareaoftheAmericanwestcalledthe“PanHandle”.Anotherpublicationofthetimesaidcompleteareasarenetworkedbytrolleycars,whichareakindofelectronictrain.
Nowweoftenhearnetworkusedinconnectionswithbroadcasting.TheBarnhartDictionaryofNewEnglishsaysthatasearlyas1914,peopleusedittomeanaconnectedsystemofradiostations.Thismeaningcontinuestobepopular.Amoremodernuseoftheword“network”islinkedtocomputers.Anetworkisasystemthatlinksanumberofcomputerstogether.Networksmakeitpossibleforpeoplewhousecomputerstoshareinformationincostlyequipment.Manycompaniesandgovernmentagenciessharethesamecomputernetwork.Thecomputersarelinkedthroughamaincomputerorthroughspeciallines.Somepeopleareabletodotheirjobsfromtheirhomecomputers.
Computernetworksalsopermitanexchangeofunofficialinformationanddiscussionsbetweencomputerusers.Bylinkingtheircomputerstotelephones,peoplecanbuygoodsthroughtheircomputers.Theycansendmessagestofriendsinmanycountries.
Anothermodernuseoftheword“network”concernsrelationsbetweenpeople.Ideasandinformationareexchangedbypeoplewhonetworktoshareinterestsandgoals.ManyAmericansnetworktogetbetterjobsortomeetnewfriends.Meetingnewfriendsbynetworkingisnotworkthoughisfun.
BB1b.gettingassignmentsandresearchpapers
c.attendingprofessors’“virtualofficehours”
d.courselectures
Entertainmentb.onlinegames
Communicationsb.toll-freephonecalls
e-commerceorders
B2Tapescript
TheproposedmergerofAmericaOnlineandTimeWarneranticipatesanagewhenhigh-speedInternetaccessiseverything.Itwillbeapipelineforalmostalltheentertainment,communicationsandinformationthatpeopleconsume.
ItisanerasodistanttomostAmericansthattheycanhardlyenvisionit.Andyeitalreadyexists.Infact,itistheonlyworldthattoday’scollegestudentsknow.CollegesacrosstheUnitedStateshavespenthundredsofmillionsofdollarsinrecentyearswiringdormitoriesforhigh-speedInternetaccess.
Whenadmissionspeoplegooutandtalktostudentsthesedays,thestudentsalwaysask,“Doyouhaveahigh-speednetwork?
”Indeed,fortoday’sstudents,havinghigh-speedInternetaccessisatoppriority.Theybasetheirhousingdecisionsonit,andrestructuretheirmeagerstudentbudgetstoaffordit.
Collegeadministratorsacknowledgethatacademicpursuitsarejustafractionoftheactivityontheircampusnetworks.Thebulkofthetrafficconsistsofdatacontainingmusicfiles,instantmessages,toll-freephonecalls,e-commerceorders,onlinegamesandjustaboutanything.
Atahigh-risedormattheUniversityofSouthernCalifornia,walkingdownthehallwayontheeighthflooralmostanytimeofday,you’relikelytohearstudentsinseparateroomsshoutingateachother-“Youkilledme!
”–astheymoweachotherdowninonlinegamesplayedoverthenetwork.Friendsfromoppositeendsofthefloorsimultaneouslymakefortheelevators.They’vejustmessagedeachotherbycomputerthatit’stimetoheadofftothediningcommons.Tothem,knockingonsomeone’sdoorisanantiquated20thcenturytradition.
Today’sstudentsregisterforclasses,gettheirhomeworkassignments,researchpapersandattendprofessors’“virtualofficehours”online.SomeuniversitiesevenpostcourselecturesontheNet,sothatstudentscanreviewthemanytimetheywish.
Justasoneofthestudentsputit:
“WeliveourlivesovertheInternet.”
PartIII
A.
1.thedesktopintooureverydaylife.
2.experimentinganarchy.
3.disappear.
4.Economies
Tapescript:
A-AnchorP-NetPotterS-Specialist
A:
We’regonnatakeacloserlooktonightagainatthefutureoftheInternet.Notthatwehaveanythingbutthevaguestideawhereit’sgoinginthelongrun.OneofthetrulyfascinatingandsomewhatunsettlingaspectsoftheInternetrevolutionishowmanytechnologistsandscientistssaythatthefuturemayholdanynumberofsurprises.Sowe’regoingtoinchourwayintothefuture.
P:
AttheInternetWorldTradeShowinNewYork,theyseeafuturewhenthewebiseverywhere.
S1:
Technologyismovingfromthedesktopintooureverydaylife.
P:
Imaginework,society,economics,relationships,alltransformed,whenanyone,anytimecangetanymessageorknowledgeoramusementtheywant,anywhereontheplanetwithoutsomuchasawire.
S2:
Inmanyways,theInternetistheworld’slargestexperimentinganarchy,becauseallofasudden,thecitizensoftheworldareincharge,andnosinglegovernmentorgoverningbodyisinchargeofwhattheydo.
P:
Keepinmindthatthewe,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.
B1persontoperson/realmanymorereal
1.relativesfriends
3.neighbors1.careers
4.colleagues2.medicalcrises
5.byphone…4.choosingaschoolorcollege
B2morepeoplekeepingmoretoourselves
Tapescript:
There’saprofessorattheUniversityofTorontoinCanadawhohascomeupwithatermtodescribethewayalotofusNorthAmericansinteractthesedays.Andnowabigresearchstudyconfirmsit.
BarryWellman’stermis“networkedindividualism”.It’snottheeasiestconcepttograsp.Infact,thewordsseemtocontradicteachother.Howcanwebeindividualisticandn
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