电子商务英语-E-Commerce-English-PPT-课件-Unit-9.ppt
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May1,2023,1,Unit9SearchEngine,May1,2023,2,Warm-upBackgroundInformationWordStudy&TextAnalysisExercises,May1,2023,3,Warm-upThreefamoussearchenginesareasfollows:
Whichoneofthesearchenginesimpressedyoumost?
Why?
Listothersearchengineswhichyouarefamiliarwith.,May1,2023,4,BackgroundInformationSEO(searchengineoptimization)即搜索引擎优化,主要是通过对网站的结构和内容等方面的优化,使搜索引擎更容易搜索网站的内容,并且使网站的各个网页在搜索引擎中获得较高的评分,从而获得较好的排名。
从事这方面工作的人就是searchengineoptimizer,即搜索引擎优化师。
May1,2023,5,ThelifespanofaGooglequerynormallylastslessthanhalfasecond,yetinvolvesanumberofdifferentstepsthatmustbecompletedbeforeresultscanbedeliveredtoapersonseekinginformation.Themainstepsareasfollows:
BackgroundInformation,May1,2023,6,TextAnalysisPrinciplesandOptimizationofSearchEnginePotentialcustomersfindWebsitesinmanydifferentways.Somesitevisitorsarerecommendedbyfriends,somearereferredbyotherWebsites,someseethesitesURLinaprintadvertisementorontelevision,andothersarriveaftertypingaURLthatissimilartothecompanysname.(译文)Butmanysitevisitorsareguidedtothesitebyasearchengine.,May1,2023,7,TextAnalysisPrinciplesofSearchEngineAsearchengineisaWebsitethathelpspeopletofindthingsontheWeb.Itcontainsthreemajorparts.Thefirstpart,calledaspider,acrawler,orarobot,isaprogramthatautomaticallysearchestheWebtofindWebpagesthatmightbeinterestingtopeople1.WhenthespiderfindsaWebpagethatmightinterestsearchenginesitevisitors,itcollectstheURLofthepageandsomeinformationcontainedonthepage.(译文)Theinformationmightincludethepagestitle,keywordsincludedinthepagestextandinformationaboutotherpagesonthatWebsite.,May1,2023,8,TextAnalysisThespiderreturnstheinformationtothesecondpartofthesearchenginecalledindextobestored2.TheindexcheckstoseewhethertheinformationabouttheWebpagehasalreadybeenstored.Ifithas,theindexcomparesthestoredinformationwiththenewinformationanddetermineswhethertoupdatethestoredinformationornot.Theindexisdesignedtoallowfastsearchofitslargeamountofstoredinformation.(译文),May1,2023,9,TextAnalysisThethirdpartofthesearchengineisthesearchutility.Visitorstothesearchenginesiteprovidesearchterms,andthesearchutilitytakesthosetermsandfindsentriesforWebpagesinitsindexthatmatchthosesearchterms.(译文)ThesearchutilityisaprogramthatcreatesaWebpageofalistoflinkstoURLsfoundinitsindexthatmatchthesitevisitorssearchterms.3Thevisitorcanthenclickthelinkstovisitthosesites.,May1,2023,10,TextAnalysisSearchEngineOptimizationThecombinedtechnologyandstrategyofhavingaparticularURLlistednearthetopofsearchresultsiscalledsearchengineoptimization(SEO).(译文)Forsitesthatobtainmostoftheirvisitorsfromsearchengines,ahighrankingwhichplacestheirURLsnearthetopofthelistoflinksreturnedbythesearchengineisextremelyimportant.ThecontentanddesignofaWebsiteareveryimportanttoSEO.Inaddition,anincreasingnumberofsearchenginesitesoffercompaniespaidpositioningwhichistheoptionofpurchasingatoplistingonsearchresultpagesforaparticularsetofsearchterms.(译文),May1,2023,11,TextAnalysisSearchengineoptimizationisacomplexsubject.Anumberofconsultingfirmsdonothingbutadvisecompaniesonit.Plentyofbookshavebeenwrittenonthissubject,andseveralmajorconferencesaredevotedtothissubjecteachyear.(译文),May1,2023,12,TheKeytoExercises:
Readingcomprehension1F
(2)T(3)F(4)F(5)T,May1,2023,13,TheKeytoExercises:
Readingcomprehension2,
(1)Somesitevisitorsarerecommendedbyfriends,somearereferredbyotherWebsites,someseethesitesURLinaprintadvertisementorontelevision,othersarriveaftertypingaURLthatissimilartothecompanysname.Butmanysitevisitorsareguidedtothesitebyasearchengine.
(2)Asearchenginecontainsaspider,anindexandasearchutility,May1,2023,14,TheKeytoExercises:
Readingcomprehension2(3)Theinformationmightincludethepagestitle,keywordsincludedinthepagestextandinformationaboutotherpagesonthatWebsite.(4)ThecombinedtechnologyandstrategyofhavingaparticularURLlistednearthetopofsearchresultsiscalledsearchengineoptimization.(5)Forsitesthatobtainmostoftheirvisitorsfromsearchengines,searchengineoptimizationisveryimportant.,May1,2023,15,TheKeytoExercises:
Vocabulary,A5B2C3D6E7F1G4,May1,2023,16,TheKeytoExercises:
Translation1
(1)有些访问者是朋友推荐来的,有些是其它网站推荐来的,有些是看到了印刷广告或电视上公司的网址,有些是直接输入了类似公司名称的网址找来的。
(2)当网络蜘蛛找到搜索引擎访问者可能感兴趣的内容时,它就收集页面的URL和页面上的信息。
(3)越来越多的搜索引擎网站提供付费搜索引擎排名服务,即企业购买特定关键词从而在搜索结果页面中排名靠前。
(4)有很多专门论述该专题的书,每年还有几次针对该专题而举办的大型会议。
May1,2023,17,TheKeytoExercises:
Translation2
(1)findWebsitesinmanydifferentways
(2)beguidedtothesitebyasearchengine(3)automaticallysearchtheWeb(4)informationaboutotherpagesonthatWebsite(5)comparethestoredinformationwiththenewinformation(6)fastsearchoflargeamountofstoredinformation(7)findentriesforWebpagesintheindexthatmatchthosesearchterms(8)clickthelinkstovisitthosesites(9)nearthetopofsearchresults(10)donothingbutadvisecompaniesonSEO,May1,2023,18,TheKeytoExercises:
ReadingMaterial,1.B2.A3.D4.C5.C,May1,2023,19,WordStudyautomaticallyadv.自动地Thenewmonitorapparatusisautomaticallycontrolled.这套新的监护仪是自动控制的。
May1,2023,20,Somesitevisitorsarerecommendedbyfriends,somearereferredbyotherWebsites,someseethesitesURLinaprintadvertisementorontelevision,andothersarriveaftertypingaURLthatissimilartothecompanysname.有些访问者是朋友推荐来的,有些是其它网站推荐来的,有些是看到了印刷广告或电视上公司的网址,有些是直接输入了类似公司名称的网址找来的。
May1,2023,21,WhenthespiderfindsaWebpagethatmightinterestsearchenginesitevisitors,itcollectstheURLofthepageandsomeinformationcontainedonthepage.当网络蜘蛛找到搜索引擎访问者可能感兴趣的内容时,它就收集页面的URL和页面上的信息。
May1,2023,22,Theindexisdesignedtoallowfastsearchofitslargeamountofstoredinformation.索引程序的作用是对存储的大量信息进行快速检索。
May1,2023,23,Visitorstothesearchenginesiteprovidesearchterms,andthesearchutilitytakesthosetermsandfindsentriesforWebpagesinitsindexthatmatchthosesearchterms.当搜索引擎网站的访问者输入搜索条件时,搜索工具就从索引里找到与搜索条件相匹配的页面条目。
May1,2023,24,ThecombinedtechnologyandstrategyofhavingaparticularURLlistednearthetopofsearchresultsiscalledsearchengineoptimization(SEO).使特定URL地址出现在搜索结果中靠前部分的技术和策略称为搜索引擎优化(SEO)。
May1,2023,25,Inaddition,anincreasingnumberofsearchenginesitesoffercompaniespaidpositioningwhichistheoptionofpurchasingatoplistingonsearchresultpagesforaparticularsetofsearchterms.此外,越来越多的搜索引擎网站提供付费搜索引擎排名服务,即企业购买特定关键词从而在搜索结果页面中排名靠前。
May1,2023,26,Plentyofbookshavebeenwrittenonthissubject,andseveralmajorconferencesaredevotedtothissubjecteachyear.有很多专门论述该专题的书,每年还有几次针对此专题而举办的大型会议。