Unit9II.ListeningSkillsMakingCalculationsW:Itsoundsexpensive.Whydidtheychargeyousomuchforrepairingthecomputer?M：Well,it's$25forlabortostartwith.Anewmodemcostanother50bucks.OntopofthatIneededanewbattery,anditcost$17.Q:Howmuchdidthemanspendaltogetherfixinghiscomputer?W:HowlongareyouontheInterneteveryday?M：Aboutthreehoursaday.IpromisedDadtocutthatinhalf,buttheInternetissoslow.Q:HowmuchtimehasthemanpromisedtospendontheNeteveryday.W:Wheredidyougetallthesee-mails?M：Igottenmessagesfromclassmates,oneaboutanassignmentandonefrommybrother.Fivewerespam,theannoyingstuffthatcomesatalltimes.Q:Howmanye-mailmessagesdidthewomangetaltogether?W:IttakestwiceaslongtoopenmyHotmailnow.Ineedoveraminutetoseemymail.IstheproblemHotmailortheISP?M：ForgetHotmail.Igete-mailthroughalocalproviderintenseconds.Tryit.Q:Howlongdiditusetotakethemantogethismail?W:Talkingaboutcomputer,what'sthemeaningofPentium4andclockspeed?M：Imaginetheprocessorofacomputerasabus.ThehigherthePentiumnumber,thelargerthethebusandthemoreinformationitcancarry.Clockspeedtellshowfastdataareprocessed.Aclockspeedof100ishalfasfastasaspeedof200.Q:Howmuchfasterisaclockspeedof200thanaclockspeedof100?.D2.C3.A4.B5.CIII.ListeningInTask1:TheInternetonCampusTheInternet,aworldwideinformationnetwork,isusedatuniversitiesmainlyasaninformationsupplysource.StaffsupplyinformationviatheInternetandstudentsmayaccessitoranyotherpubliclyavailableinformation.TheInternetisalsousefulforstudentstocommunicatewithstaff.Teachersmaypresentlecturematerialsinlecturehalls,andatthesametime,theycandistributethematerialsforstudentstoaccessfromanylocationatanytimeviatheircomputer.Suchmaterialsarepreesentedmainlyintheformoftext,stillpicturesandhypertextlinks.Studentsfindthisvaluableandrelevanttotheirneeds.Iftheymustmissalecture,studentscanstillkeepuptodate.Staffusersmayputupnoticesofconferences,maintainprofessionalcontacts,andcommunicateandconductdiscussionswiththeircolleaguesorstudents.Students,ontheotherhand,aretaughthaowtousetheInternetasanindividualproductivitytoolinseveralcourses.l.A2.D 3.A4.A5.CTask2:SurfingtheNetW:HiBryan.Hareyoudoing?Youlooktired.M：Oh,I'malittleburntout.I'vebeensurfingtheNetforthelastfewhours.W:Wereyoudoingschoolwork,orwasitjustforpleasure?M：Well,IwantedtogetsomeinformationonSouthAmericaforaprojectIhave,butIfoundareallyinterestingchatsitewithpeoplefromthereandstartedchatting.W:Well,didyougettheinformationyouneeded?M：Yes,butthenwespentlotsoftimechattingaboutotherinterests.W:Isee.TheInternetisawonderfulplace.Thereissomuchinformationavailable.Icompletelyunderstandhowyoucangetdistracted.SometimesIfindmyselflookingforonepieceofinformation,butbythetimeIamfinishedIhavealotmorethanIstartedofflookingfor.M：Iknow.OnethingIreallydon'tlikeaboutit,though,isittakessomuchlongertofindthings,becausemanysitesareuseless.W:Yes,there'sthat,andalso,Ioftenfindthesamesiteoverandoveragaininasearch.Thatdefinitelywasteslotsofmytime.M：And,ofcourse,therearesitesthatofferlittletonorelevantinformationonthetopicyouaresearchingfor.Inmysearchtoday,Ifoundquiteafewsitesthatwerenothingmorethanoldlocalnewsarchivesandeventcalendars.W:Well,I'msuretheywereusefultosomeoneatsometime,buttheyshouldberemovedwhenthey'renolongerofusetoanyone.M：Iagree.WithallthetimeIspndonit,Istillfindittobethebestsourceofinformationavailable.Andspeakingofinformation,IreallyshouldreadthroughwhatIgotontheInternetandstartworkingonmyproject.W:Okay.Goodluck.It'sfunnywehadthischat,asIwasjustonmywayhometosurftheNetmyself.M：Well,itwasnicetalkingtoyou,andmaybeI'llmeetyouinachatroomlatertonight.SurfingtheInternetforthelastfewhours.SomeinformationonSouthAmericaforaprojecthehad.Becausethereissomuchinformationavailable.Ittakessomuchlongertofindthingsbecausemanysitesareuseless.Shethinkstheywereusefultosomeoneatsometime,buttheysgouldberemovedwhenthey'renolongerofusetoanyone.Task3:InternetAddictionOvertheyears,studieshaveshownthatit'spossibletobecomeaddictedtotheInternet.Actually,collegestudentsaremostlikelytohavetheaddictionbecauseofmanyfactors.Difficultyinadaptingtolifeawayfromhome,andcertainpsychologicalproblemslikedepressionorsocialanxietyareamongthemainreasons.CollegestudentshavelotsfreetimetospendandmanyofthemaresuppliedwithfreeInternetaccessandacomputerintheirdoorms.It'sreallyeasytogetaddicted.Walkingthroughthecomputerlabs,youaremostlikelytofindstudentschattingorsurfingontheInternet.Therearenotjustsome,butmanystudentsnotreallydoinganythingrelatedtoschoolwork.Theyarespendingfartoomuchtimeonline,whichmaydoharmtotheirschoolworkandotheractivities.Asaresult,somehavebeenacademicallydismissed,andothersareeveninthedangerzonefordevelopinganaddictionneedstobeaddressednowasaseriousproblemoncollegecampuses.likelyadaptingpsychologicalaccessdormschattingrelateddismissedgamblingTask4:ABriefIntroductionhonoredasourguestcomputerhackingprotectbooksandarticlesmisuseNewThreatsbSecuritywakepurhterestSpeakingOutFocusingAttentionModel1AsfarasI'mconcerned,...NowYourTurnNicole: Hi,Chris!What'sup?Christopher:ThedamnedInternetisdownagain.Seemslikeit'salwaysdown.WhatdoyouthinkIshoulddo?Nicole: Ifuouaskme,youjustneedtohaveyourconnectionchecked.Christopher:Maybeyou'reright.But,to@ihetruth,whatIreallyneedistohavemyowncomputer.Nicole: Whv?AsfarasI'mconcerned,that'snotnecessarywhenyou'relivingoncampus.Model2InmyopinionAshley:HeyMike,whatareyoudoingonline?Michael:Well,I'mgettingsomeideasformytermpaper.Ashley:Ideas?Well,1personallythinkweshouldthinkforourselves.Michael:It'seasiersaidthandone!WorkingwiththeInternetismuchfaster,youknow.Ashley:But,Amyopinion,that'saformofplagiarism.Michael:Comeon,Ashley.Ineverquotethepassages;Ijustusetheirideas.Model3AsISeeit,...Maria:I'vegottodotwoassignmentsthisweek,buttheInternetisnotalwaysatimersaver.Jessica:SearchingontheInternet?Don't，youthinkit'shardtofindtherightinformationforyourassignments?Maria:No,justtheopposite.There'stoomuchinformation.Istartlookingforonething,andseesomethingelse.BeforeIknowit,I'mcompletelyofftopic.Jessica:Well,asIseeit.youshouldfocusonwhatyouaredoingandnotgetdistracted.Maria:But,thepointisthatit'sveryhardtostayononetopicwhenothertopicskeepflashingandjumpingoutatyou!Let'sTalkAnne:John!You'replayingcomputergamesagain?John:Hi,darling.I'mjustsurfingtheNet.Anne:Oh,mygosh!You'rebecomingaNet-addict!John:Comeon,Anne.IfindtheInternetveryusefu!一!canfindanything.WantmetosearchforthenumberofNet-addictsinAmerica?Anne:John,youspendmoretimeontheNetthanwithme.It'skindofunhealthy!John:Unhealthy?Here,justfeelmymuscles.IlikeAtlas—IcanlifttheworldwiththeNet.Anne:Stopjoking,John.Youspendhoursclosedupinyourroom,withjustyourcomputerforcompany,likearecluse.Itisasifyoulivedinacomputer!John:Notreally.IamintouchwiththeworldthroughtheWeb.Anne:Butitisnotthesame.Youneedtointeractwithpeople,playrealgames,andenjoynature.Yourvirtualworldisaformof...of...escapism.John:Therealworldcouldusesomeescapingform,don'tyouthink?Anne:Youknow,John,itisnotjustyou;mostyoungpeople-evenchildren一spendsomuchtimeontheNetthatitisnotonlyaffectingtheireyesightbutalsotheirpersonalities.Theyarebecomingunsociable...John:Anyway,lookatthepositiveside:theamountofusefulinformationavailableontheWebisamazing.Anne:Iknowthat.AslongastheInternetisonlyavirtualgirlfriend,Iwon'thavetoworryaboutit.John:2,4,6,8Anne:1,357ForReferencesayhellotoBandaskwhatheisdoingonline.Hi,Brian.You'reonlineagain!Searchingforsomething?respondtoA'sgreetingandanswerhis/herquestion.Hello,Vivian.I'mplayinggames.It'sthrilling!showyourconcernforBbylisteningsomedia=sadvantagesofNetaddiction.Comeon,Brian.You'vespenttoomuchtimeonline.Haven'tyoueverworriedaboutyourstudy?YouraddictiontotheNetwillspoilyou!accountforyourNetaddictionbylistingsomeconveniencesandexcitementtheInternetbringstoyou.Don'tbejoking,Vivian.TheInternetissoconvenient,andyoucandoeverythingonit.Ienjoyplayinggamesonline.It'sreallyexciting!bgreetBandaskwhatheisdoing.Hi,Dave.What'reyoudoing?Seemsyou'redoingeditingwork.respondtoA.Well,IjustdownloadedanessayfromtheNet,andhavegottomakesomechangesformyliteratureclass.makecommentsonB'spractice.What?Downloadedanessay?Areyoucrazy?We'resupposedtowritepapersbyourselves.trytojustifyyouract.Soundseasy!ButIdon'thavethetime.Besides,I'mnotintoliterature,youknow.VI.FurtheringListeningandSpeakingListeningTask1:TheOriginoftheInternetThestoryoftheInternetbeginsinthelate1950s.TheSovietUnionlaunchedSputnikin1957.ThePentagonsetuparesearchteamin1958tocreateacomputernetworktooperateduringdisasterslikeanuclearwar.TheresultingnetworklinkedU.S.scientificandacademicresearchers.ItgrewintotheWorldWideWebortheInternetthatbecamethenetworksystemoftheInformationAge.In1985,theNationalScienceFoundationcreatedanetworkwhichprovidedafreenationalservicetoanyU.S.researchandeducationinstitution.Later,largecorporationsbegantobuildtheirownnetworks.AllthosenetworksfinallyjoinedthePentagon'snetworktoformtheInternet.Bythe1990s,anyonewithacomputer,amodern,andInternetsoftwarecouldlinkuptotheInternet.Inthefuture,theInternetwillprobablygrowmorecomplexandbecomepartofalargernetworkcalledtheinformationhighway.Withthatpeoplecouldbank,shop,watchTV,andperformmanyotheractivitiesonline..thelate1950sdisasters.theWorldWideWebtheWorldWideWeb.afreenationalserviceresearchandeducationinstitution.The1990sInternetsoftwarelinkup.alargernetworktheinformationhighwayonlineTask2:TheInternet—ASmallTownTheInternetisaglobalnetwork,butinmanywaysit'slikeasmalltownwithsimilarservicestooffer.Thereareelectronicpostofficestosendandreceivee-mail,functioningsomewhatmoreefficientlythanthePostOfficeweknow.Therearelibrariesofinformationthatstayopen24hoursadaywithmillionsofbooksanddocumentstobrowseorsearchthroughontheWorldWideWeborWWW.Youcanalsoenjoyreal-timetext-basedcom