阅读理解 Like business and industry, the academic world is changing with technology advancing．A library is one place where we can see changes．Many innovative(革新的)things are happening in both public and university libraries．Libraries are using new equipment and techniques for research, and librarians are teaching students the new techniques． One service that some university libraries are now providing is a computer search of materials for students doing research．Before starting a research project, students man check with their library to see if a computer search is worthwhile．This kind of search cannot help with all research projects, but it can save time if the topic is in the computer's database(数据库)．When you are doing a manual(人工的)search for a research paper, you look at all the indexes(索引)suitable for the research topic．You look up the words related to the topic in the indexes．It takes many hours to look up this information and write down the references(参考资料)．A computer search is faster and easier．You and a librarian decide on the words to enter the computer．The computer looks for these words in this database and gives you a list of reference for your topic．A computer can take two or more ideas and produce references that combine those ideas．A computer search can also be more complete than a manual search． College and university libraries are providing other technological services as well．Another change is the frequent use of microfilm．Librarians are able to collect more materials in one building by having newspapers, magazines, and other documents on microfilm．Students use microfilm readers in the library for these materials． These innovations in libraries are helpful to library users, but they are also expensive．Many libraries are facing budget(预算)problems．There is more technology available(可得到的)today; as a result, libraries are paying higher costs for the equipment that makes researches easier． | 
