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1.Below is a page adapted from About Wikipedia (维基百科) on how to take full advantage of Wikipedia.
Wikipedia is a web-based,free-content encyclopedia (百科全书) in many languages.
§Exploring Wikipedia
Many visitors come to Wikipedia to acquire knowledge,while others come to share knowledge.At this very instant,dozens of articles are being improved,and new articles are also being created.Over 3,500articles have been listed by the Wikipedia community as featured articles.Another 15,000 articles are listed as good articles.Wikipedia is available in more than 280 languages including English.Its related projects include a dictionary,quotations,books,manuals,and scientific reference sources,and a news service.All of these are kept,updated,and managed by separate communities,and often include information and articles that can be hard to find through other common sources.
§Basic navigation in Wikipedia
Wikipedia articles are all linked,or cross-referenced.In every article,there are links to some related articles or Wikipedia pages with further in-depth information.Holding the mouse over a certain link will often show to where the link will lead.There are other links towards the ends of most articles,for other articles of interest,related websites and pages and so on.Some articles may also have links to dictionary definitions,audio-book readings,quotations,the same article in other languages etc.
§Using Wikipedia as a research tool
Wiki articles are never considered complete and may be continually edited and improved.Over time,this generally results in an upward trend of quality and a growing agreement over a representation of information.Users should be aware that not all articles are of encyclopedic quality from the start.Indeed,many articles start their lives as displaying a single viewpoint; and,after a long process of discussion,debate,and argument,they gradually take on a neutral point of view reached through agreement.Others may,for a while,become caught up in a heavily unbalanced viewpoint which can take some time-months perhaps-to achieve better balanced coverage of their subject.
§Wikipedia vs.paper encyclopedias
Wikipedia has advantages over traditional paper encyclopedias.Wikipedia has a very low"publishing"cost for adding or expanding entries and a low environmental impact in some respects,since it never needs to be printed.In addition,Wikipedia has wikilinks instead of in-line (内嵌) explanations and its articles provide not only summaries but also plenty of details.Additionally,the editorial cycle is short.A paper encyclopedia stays the same until the next edition,while editors can update Wikipedia at any instant,around the clock,to help ensure that articles keep up with the most recent events.

46.We know from the passage that WikipediaC.
A.provides very accurate information
B.offers links to most leading media
C.covers rich resources of knowledge
D.comes available in any language
47.The underlined word"they"in the passage probably refers to"B".
A.users
B.articles
C.editors        
D.subjects
48.The links in Wikipedia to other resources are mainly toB.
A.provide details of the same articles
B.help the users to be better informed
C.guarantee the quality of the service
D.offer basic guidance on web research
49.The passage is presented in a way ofC.
A.discussion
B.description
C.instruction      
D.summary.

分析 本文主要介绍了维基百科网页:
1,维基百科是一个众人分享知识的平台,文章丰富,内容以多种语言展示,题材丰富;
2,维基百科有内嵌设置,浏览者点击链接可以浏览到很多内容;
3,维基百科是很好的学术平台,文章一直处于被完善的状态;
4,相对于纸媒,维基百科的优点是低价发布,而且更新及时.

解答 46.C 判断推理. 选项A从倒数第二段句子Users should be aware that not all articles are of encyclopedic quality from the start.可知并不总是很准确;选项B在倒数第三段Wikipedia articles are all linked,or cross-referenced.可知是all,不是most;选项D从第三段Wikipedia is available in more than 280 languages including English.可知并非所有的语言.答案为C有非常丰富的知识.
47.B 上下文语意推测.由划线词所在的语段句子Indeed,many articles start their lives as displaying a single viewpoint可知,是谈论articles,故为B.
48.B 细节理解.由第四段句子there are links to some related articles or Wikipedia pages with further in-depth information.可知是为了提供更多的信息,故为B.
49.C 写作手法.本文主要是说明维基百科的用途和特点以及优势.因此写作的呈现方式是instruction.

点评 本文为说明文.考生需注意文章所说明事物的特点,用途及相对于其他事物的优点.

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