【正确答案】 D

【答案解析】[听力原文]
   Your assignment this term will be to write two major research papers. One of the most important things about writing a research paper is giving proper credit for your sources of information. Failure to do this is called plagiarism, which is a form of intellectual dishonesty. Plagiarism is a kind of stealing, or at least, an unauthorized borrowing of someone else's ideas. Sometimes, inexperienced students will plagiarize unintentionally, and then be surprised when the teacher won't accept their papers, or gives them a failing grade. The best way to avoid unintentional plagiarizing is to be very careful in gathering your information as you take notes on books and magazine articles about the topic you've selected. Firstly, try to assimilate the information thoroughly. Secondly, write it down in your own words. This is called paraphrasing. If you do a good job of paraphrasing, you'll capture the main idea from your source without actually using any phrases from it. Most of your notes should probably be paraphrases. However, occasionally you may find something you wish to quote directly in your research paper. In this case, be sure that you copy the quotation precisely in your note, and enclose it in quotation marks. That way when you are finalizing your research paper, you'll be able to remember which of your notes are direct quotes, and which are your own summaries of the material. You can then incorporate them appropriately and give the original author proper credit.
Q: What kind of assignment is the professor discussing with the students?
你们这学期的作业是写两篇重要的研究论文。写研究论文最重要的注意事项之一就是要注明引用资料的出处。做不到这一点，就会被认为是剽窃，这也是学术上不诚信的一种表现。剽窃是一种偷窃行为，或者至少是一种未经他人授权而借用其思想的行为。有时候，一些没有论文写作经验的学生会在无意间产生剽窃行为，当老师拒绝接受他们的论文或将他们的论文判为不及格时，他们才会大吃一惊。避免无意识剽窃的最好办法是，在你为所选定的主题查阅相关图书和杂志文章时，对从(这些资料)中所做的笔记里收集的信息要慎之又慎。首先，尽量透彻理解信息内容。第二，用自己的话把信息内容写下来，这种方法叫做改写。如果你改写做得很好，其实不用信息里的原有词句，你就能根据自己已有的知识来获取它的大体意思。你大部分笔记的内容应该都是改写过的。然而，你偶尔会发现有些内容你可能想直接引用到你的研究论文里。在这种情况下，你要保证把引文原封不动地抄下来，并给引文加上引号。这样当你完成研究论文时，你就能记起哪些笔记的内容是直接引用的，哪些是你自己对资料的总结。然后，你就能恰当地将这些笔记的内容融入到你的论文之中，同时给予原著作者适当的尊重。
   快速浏览各题选项，根据其中的关键词reviewing、writing research papers、assignment、students、teachers、quotations推测，该短文很可能谈论的是与学生写论文或交作业有关的内容，具体细节需要进一步分析各个选项。
   ①四项均为动名词短语。
   ②两项含有与作业有关的内容(book reports，research papers)。
   结论：本题考查某种行为，很可能与报告或论文有关。
   本题问教授正在与学生讨论什么作业。在文章开头教授对学生说，这学期的作业是写两篇重要的研究文，接下来讲解了写论文的注意事项，故本题选D。