考研英语题型：段落主题选择题解析

解题原则分析：
名词主体论，动作决定论：文章以及段落都是由主题句和细节句构成的。主题句表明段落或篇章的中心，细节句是为主题句而服务的。即，主题句指明段落及文章的方向，细节句则是支撑主题的具体事例，引语，统计，比喻或者实验。同时，无论主题句还是细节句均由单词组成：名词表达主体，动词确定趋势，形容词和副词表示性质。因此，把握文章每一个段落的中心思想无须透彻理解整个段落，段落中的名词即可指明方向，确定主题，即，名词主体论。主体名词对应的动作体现主语内容和趋向，因此，准确体现主题句动作的段落即为该主题句所对应的段落，即，动作决定论。
解题步骤分析：
Directions:You are going to read a list of headings and a text about plagiarism in
the academic community. Choose the most suitable heading from the list A-F for
each numbered paragraph (4 1-45). The first and last paragraphs of the text are not numbered. There is>，sometimes is the result of the writer’s inability to decide or remember where the idea came from. He may have read it long ago, heard it in a lecture since forgotten, or acquired it second-hand or third-hand from discussions with colleagues. He may also have difficulty in deciding whether the idea is such common knowledge that no reference to the original source is needed. Although this type of plagiarism must be guarded against, it is the least serious and, if lessons learned, can be exempt from being severely punished.
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Plagiarism through ignorance is simply a way of saying that inexperienced writers often do not know how or when to acknowledge their sources. The techniques for documentation-note-taking, quoting, footnoting, listing bibliography -- are easily learned and can prevent the writer from making unknowing mistakes or omissions in his references. Although‘there is no copyright in news, or in ideas,>．