大学体验英语综合教程1(第三版)-课文听写unit5ppt课件

.,Unit5,ReturntoMenu,.,LISTEN,TALK,.,Turntop.88,andletslisten.,Listentothefollowingpassageandtrytofilltheblanks.,.,Firsttime,2ndtime,Checkup,Whatareyourkeysourcesofinformation?Doyougetmostofyourinformationbytalkingtootherpeople?PeoplecouldalreadydothatintheStoneAge.Whentheprintingpresswasinventedseveralhundredyearsago,1)_sourcesbecameimportanttoanyonewhocouldread.Nowweread2)_andnewspapersasmuchaswereadbooks.Butwealsogetalotofinformationfrom3)_sources.Radioisnotyet100yearsold,4)_hasonlybeenpopularforabout50years,andthe5)_isyoungerthanallthestudentsinthisclass.Yetthesearesomeofourfavorites.Whatareyour6)_?Howmanydifferentsourcesofinformationdoyouuseinatypicalday?,.,Secondtime,3rdtime,Checkup,Whatareyourkeysourcesofinformation?Doyougetmostofyourinformationbytalkingtootherpeople?PeoplecouldalreadydothatintheStoneAge.Whentheprintingpresswasinventedseveralhundredyearsago,1)_sourcesbecameimportanttoanyonewhocouldread.Nowweread2)_andnewspapersasmuchaswereadbooks.Butwealsogetalotofinformationfrom3)_sources.Radioisnotyet100yearsold,4)_hasonlybeenpopularforabout50years,andthe5)_isyoungerthanallthestudentsinthisclass.Yetthesearesomeofourfavorites.Whatareyour6)_?Howmanydifferentsourcesofinformationdoyouuseinatypicalday?,.,Thirdtime,Checkup,Whatareyourkeysourcesofinformation?Doyougetmostofyourinformationbytalkingtootherpeople?PeoplecouldalreadydothatintheStoneAge.Whentheprintingpresswasinventedseveralhundredyearsago,1)_sourcesbecameimportanttoanyonewhocouldread.Nowweread2)_andnewspapersasmuchaswereadbooks.Butwealsogetalotofinformationfrom3)_sources.Radioisnotyet100yearsold,4)_hasonlybeenpopularforabout50years,andthe5)_isyoungerthanallthestudentsinthisclass.Yetthesearesomeofourfavorites.Whatareyour6)_?Howmanydifferentsourcesofinformationdoyouuseinatypicalday?,.,.,.,.,.,.,.,Nowletstalk.,Withthehelpofthepictures,discussthefollowingtopicswithyourpartner.,Informationfrompeers:talks,discussionsandlectures.,1.Wheredoyougotogetyoureverydayinformation?2.Whatsourcesofinformationdoyouusuallyuseandwhy?,.,Withthehelpofthepictures,discussthefollowingtopicswithyourpartner.,Informationfromexperiences:practice,experiments,visitsandcollections.,1.Wheredoyougotogetyoureverydayinformation?2.Whatsourcesofinformationdoyouusuallyuseandwhy?,.,Withthehelpofthepictures,discussthefollowingtopicswithyourpartner.,Informationfrombooks,newspapers,TV,radioandtheInternet.,1.Wheredoyougotogetyoureverydayinformation?2.Whatsourcesofinformationdoyouusuallyuseandwhy?,.,Withthehelpofthepictures,discussthefollowingtopicswithyourpartner.,Informationfromlibraries,archives,databasesandmuseums.,1.Wheredoyougotogetyoureverydayinformation?2.Whatsourcesofinformationdoyouusuallyuseandwhy?,.,Task1,Task2,Dialogue1,Dialogue2,.,Turntop.90,andletslistenandtalk.,Li:Hi,Tom.Rememberme?WemetafewmonthsbackatEnglishCorner.Tom:Sure,hi,Li.Howhavethingsbeengoingsincewelasttalked?Li:Prettygood.Iguess,sure,IcantcomplainmuchbutIwonderifIcouldaskyouforsomeinformation?IfIrememberrightyoureawizwhenitcomestothecomputer?Tom:Well,letsjustsaythatIhavealotofinterestwhenitcomestousingorplayingwiththecomputer.ActuallyIplanonmakingitmycareeronceIfinishuniversity.SowhatcanIhelpyouwith?Li:WearetalkingaboutthedifferencesbetweenDirectoriesandVirtualLibrariesintheComputerScienceclass.Doyouthinkyoucouldtellmeabitaboutthedifferences?,Dialogue1:SharingInformationTwostudentsmeetoncampusandhaveaconversationabouttheircomputerclasses.,Tom:Surenoproblem.Illtrytomakeitassimpleaspossible.DirectoriesaretopicallistsofInternetresourcesarrangedinahierarchicalwayandalthoughtheyaremeanttobebrowsedbysubject,directoriescanalsobesearchedbykeyword.Theydifferfromsearchenginesinonemajorwaythehumanelementinvolvedincollectingandmaintainingtheinformation.Directoriesarecreatedandmaintainedbypeople,whereassearchenginesrelyonspidersorrobotstoscourtheInternetforlinks.Li:Arethereanumberofdifferencesbetweendirectoriesaswell?Tom:Infact,thereare.Someofthosemajordifferencesare:directoriescontainfewerresourcesthansearchenginedatabases,manydirectoriesrate,annotate,orcategorizechosenresourcesanddirectoriesincreasetheprobabilityofretrievingrelevantresults.,Li:Ohwowthatjustissocrazyandthatmakesdirectoriessomuchclearer.Sowhataboutvirtuallibrariesandhowdotheyfigureintoinformationseeking.Tom:Asforvirtuallibraries,thesearedirectorieswithresourcesthatlibrariansorcybrarianshaveorganizedinalogicalway.Itishelpfultothinkofthesespecializeddirectoriesasbeingsimilartolibraries,becausepeoplewhoarecommittedtofindingtheverybestresourcesontheInternethavecarefullyselectedandmaintainedtheresourcesinavirtuallibrary.Thesepeopleusuallyrateoranalyzetheresourcesandarrangethemsotheycanbefoundeasily.,Li:Thatwasveryhelpful,Tom.Justonelastquestion.WhattypesofresourcesmightIfindinavirtuallibrary?Tom:Therearethreemajortypesofresourcesthatvirtuallibrariesaremostapttocontain:subjectguides,referenceworksandspecializeddatabasesdoesthisallhelp?Li:ThanksTom,forsure;sohowaboutbuyingyouacupofcoffee?,.,Turntop.91,andletslistenandtalk.,Dialogue2:MeetingatEnglishCornerTomandLimeetagainatthenextEnglishCornerandcatchupwitheachotherslifeoverthepastmonth.,Tom:Li,sogladtoseeyouagain.Howhavethingsbeengoingwiththatcomputerscienceclass?Haveyoufigureditoutyet?Li:Actually,youknowsinceourlastconversationIhavebeendoingalotbetterinclassandfoundoutalotmoreaboutdirectoriesandvirtuallibraries.MaybeIcouldteachyouathingortwohaha.Tom:Sowhathaveyoulearned?Maybeyoucouldteachmesomething.Li:Well,Ididlearnthattherearetwowaysoffindinginformationindirectories.Youcanbrowsebysubjectorsearchbykeyword.Inbrowsingyoujustclickonasubjectcategorythatyouthinkwillcontainwhatyouareseeking.Thiswilltakeyoutoanotherlevelinthehierarchy,whereyouwillchooseanothersubjectfromthelistofsubjectsthatappearonyourcomputerscreen.,Tom:Exactly,andthenyouexaminethechoicesthatarereturnedtoyouandselecttheonemostcloselyrelatedtoyourresearchtopic.Afterthatyoucontinuethisprocessuntilyourscreenfillswithalistofresourcesthatyoucanthenexaminetofindtheinformationyouneed.Li:Wow,Ishouldhaveknownyouknewallaboutbrowsing,andshouldhaveinvitedyouforanothercoffeetosavemetheworkoffiguringitallout.Tom:NowayLi,thatwouldbetooeasythen,plusitsbettertofindoutusingyourownmethodssometimes,makesthingsstick,ifyouknowwhatImean?,Li:YahIknowitwillbeeasierformetounderstand.Tom:Sowhattypesofdirectoriesareyouusingthen?Li:Well,GooglehasbeenafavoriteaswellasYahoo.HereisalsoHotBot.Haveyouheardofthatone?Ihavebeenusingthatonetofindresourcesaboutdistancelearningincollegesanduniversitiesabroad.Tom:Actually,Imnotsofamiliarwithit,butIllbesuretocheckitoutlaterwhenIgethome.Li:Wellfinally,somethingIcouldteachyou.Sohowaboutwejointheothersoverthere?SoundslikeaninterestingconversationgoingonCampusloveTom:NowthatsasubjectIneedsomehelpwithmylovelifesucks.,.,LiHuawantstoknowhowAmericanstudentsgettheinformationtheyneed.SoheasksTom,anAmericanstudent,aboutit.,RoleA,RoleB,Situation,.,RoleB,Situation,YouplayasLiHua.,RoleA,LiHuawantstoknowhowAmericanstudentsgettheinformationtheyneed.SoheasksTom,anAmericanstudent,aboutit.,Reference,.,RoleA,Situation,YouareanAmericanstudent.,RoleB,LiHuawantstoknowhowAmericanstudentsgettheinformationtheyneed.SoheasksTom,anAmericanstudent,aboutit.,Reference,.,Li:Idliketostudyabroadsomeday.SoIlookedatthewebsiteforyourcollege,butitdoesnthavemymajor.Tom:Itsjustasmallcollege,somaybeyoushouldlookatsomelargeuniversities.Li:Dotheyallhaveattractivewebsiteslikeyourcollege?Tom:Ofcourse.MostAmericanstudentsusewebsitestohelpchoosetheircollegesthesedays.Li:HowcouldIfindthebestprogramsinmymajor?Tom:Haveyoulookedatthenationalrankingsofthecolleges?Theprogramsinsomeofthemajorsarealsoranked.Youcouldtrytofindtheserankingsonwebsitestoo,alongwiththewebsiteaddressesofthecolleges.,Task1,.,Task1,Li:HowshallIstart?Tom:IfyouuseGoogle,justtypein“rankings,”“collegeprograms,”andyourmajor.Youmightalsotrysomeotherphraseslike“universityprograms”or“academicprograms”untilyousucceed.Thenyoushouldaskthecollegestosendyoutheircataloguesandapplicationmaterials.Li:Thanks,Illgiveitatry.,.,RoleB,AnAmericanfriendiswritingatermpaperonafavoriteChinesepoet.ButhecantfindenoughrelevantmaterialsonChinesepoetsanddoesntknowmanyoftheirnames.SoheaskshisChinesefriend,Li,forsomehelp.,RoleA,Situation,.,RoleB,Situation,YouareLi,andwillhelpyourAmericanfriend.,RoleA,AnAmericanfriendiswritingatermpaperonafavoriteChinesepoet.ButhecantfindenoughrelevantmaterialsonChinesepoetsanddoesntknowmanyoftheirnames.SoheaskshisChinesefriend,Li,forsomehelp.,Reference,.,Situation,RoleA,YouareanAmericanstudent,comingtoLiforhelp.,RoleB,AnAmericanfriendiswritingatermpaperonafavoriteChinesepoet.ButhecantfindenoughrelevantmaterialsonChinesepoetsanddoesntknowmanyoftheirnames.SoheaskshisChinesefriend,Li,forsomehelp.,Reference,.,Task2,Jim:Hi,Li.CanyouhelpmewithmytermpaperonChineseliterature?Li:Sure.ItsasubjectthatIreallyenjoy.Jim:IamsupposedtowriteaboutafavoriteChinesepoet.ButIdonthaveone.