2012年12月英语六级阅读每日一练(12.5)
日期:2012-12-05 10:16

(单词翻译:单击)

阅读训练

If you are looking for information, library shelves are a good place to start. But if you need up-to-the-minute data or have specialized needs, you may find a computerized database more useful, less expensive, and less time 11 .A database, a file of information on one subject or family of subjects, can be stored and 12 in a computer's memory. The speed of the computer then 13 you to recall any item in this file almost 14

  The three main types of databases are statistical, bibliographic, and full text. Statistical databases store 15 amounts of numerical data, such as wage and price indexes, census information, foreign 16 rates and bond prices. Bibliographic databases store references to and summaries of articles in periodicals and newspapers. Full-text databases offer the complex texts of such 17 as newspaper, magazine, and journal articles.

  Thousands of databases exist today, and their numbers are growing. Many companies have their in-house database, which is 18 to employees through computer terminals or microcomputers. In addition, several hundred commercial databases are now available to the 19 , with literally millions of items of information readily obtainable. These databases 20 specific fields, such as law and financial forecasting, or general information, such as sports and weather data.

  A. exchange B. public C. instantly D. cover

  E. enables F. consuming G. remained H. materials

  I. hide J. intensively K. vast L. communications

  M. exhausting N. accessible 0. maintained

阅读答案

  II. F 12. O 13. E 14. C 15. K 16. A 17. H 18. N 19. B 20. D


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重点单词
  • censusn. 户口普查
  • complexadj. 复杂的,复合的,合成的 n. 复合体,综合体,
  • specificadj. 特殊的,明确的,具有特效的 n. 特效药,特性
  • vastadj. 巨大的,广阔的 n. 浩瀚的太空
  • statisticaladj. 统计的,统计学的
  • specialized专门的 专科的
  • intensivelyadv. 强烈地;集中地
  • exchangen. 交换,兑换,交易所 v. 交换,兑换,交易
  • commercialadj. 商业的 n. 商业广告
  • additionn. 增加,附加物,加法