计算机辅助教学NEW.ppt

SEARCHTOOLS[3/3]SEARCHENGINESSearchEnginesBECDAfocusonsearchingaimtoofferacomprehensivesearchtoolsInternetresourcesbykeywordsearchingcoveralltypesofresourcesservethewiderpublic1.CHARACTERSSearchenginesarecharacterizedbythefactthattheyarebuiltbymachines,sometimescalledrobots,Webcrawlers,orspidersSEARCHTOOLS[3/3]SEARCHENGINESUsenarrowsearchtermsandtouseAdvancedSearchoptionstomakeyoursearchveryspecific·MakeyourownverycarefuljudgementsaboutthequalityoftheinformationyouretrieveThefulltextofallthefilesthattherobothasvisited.Thattheresourcesandtheresourcedescriptionsyouretrieveareautomaticallygeneratedbyrobotsandsoarenotqualitycontrolled2.when?3.searchasubjectgatewayremember4.ItthereforepaystoYouwanttofindsomethingspecific,fast.Youwanttoretrieveasmuchinformationaspossible.SEARCHTOOLS[3/3]SEARCHENGINES1).·Google(.hk/)Awell-knownwebsitecangiveusmuchinformationofdifferentaspects.5.TWOEXAMPLES.hk/编辑要有哪些信誉好的足球投注网站的内容优点：中英文网站都有。方便了资源的有哪些信誉好的足球投注网站。Google有哪些信誉好的足球投注网站缺点:内容的局限性。有许多内容没有有哪些信誉好的足球投注网站结果在输入“英语学习资源”后SEARCHTOOLS[3/3]SEARCHENGINES2).·Excite(/)Althoughitisastrangewebsiteforme,Ifindthattheinformationthereisverycomprehensive.Thusitalsocangiveusmuchinformationofdifferentaspects.5.TWOEXAMPLES/Itisverycompleteandintegrated./search/web?q=study+EnglishResearchresultsfrom:输入“study;anguage”后LearnEnglishon_line/EnglishCoursesforChinesePeople中国学生自己的文章可以发给外国的孩子一起学习和进步。还可以网上下载音频内容来提高学生的听力和口语。例如：LessonOneOtherUsefulWebsites1.ILoveLanguages(yourguidetolanguagesontheweb)（该网页提供一个详尽的和语言有关的网络资源目录）2./claire/internet-esl.html(非常有用)3.(/cgi-bin/page.cgi?g=Detailed/818.htmltab=basic;d=1)介绍苏州大学与北京师范大学应用语言学研究生之间的键友交流项目（p.29）4.Alt.usage.english（/index.shtml）讨论英语语法、词语