文献检索.04.pptVIP

研究背景：General statement(s) about a field of research to provide the reader with a setting for the problem to be reported. 已有研究：More specific statements about the aspects of the problem already studied by other researchers. 存在问题：Statement(s) that indicate the need for more investigation. 本文目的：Very specific statement(s) giving the purpose/objectives of the writer’s study. 研究价值：Optional statement(s) that give a value or justification for carrying out the study. 5.2.3.1 研究背景（Inventing the Setting） Begin with accepted statements of fact related to your general area (your “universe”) Within the general area, identify one subarea (your “galaxy”) Indicate your topic (your “star”) 5.2.3.2 已有研究(Reviewing Previous Research) 参考文献的引用与组织 按研究分组（Citations grouped by approach） 按关系远近（Citations ordered from distant to close） 按年代顺序（Citation ordered chronologically, earliest to latest） 5.2.3.3 存在问题（Missing Information） It sums up the review by pointing out a gap --an important research area not investigated by other authors--advancing to present research. 1)You may indicate that the previous literature described above is inadequate because an important aspect of the research area has been ignored by others. 2)You may indicate that there is an unresolved conflict among the authors of previous studies concerning the research topic. This may be a theoretical or methodological disagreement. 3)You may indicate that an examination of the previous literature suggests an extension of the topic, or raises a new research question not previously considered by other workers in your field. 5.2.3.4 研究目的（The Statements of Purpose） To state as concisely as possible the specific objective(s) of your research. It follows directly from the above stage because it answers the need expressed in upper stage for additional research in your area of study. The orientation of the statement of purpose may be towards the report itself (The aim of the present paper is to …) or the research activity. (The purpose of t