【正确答案】
D
【答案解析】[听力原文] You've probably seen encyclopedias. Whether you're settling an argument or researching a school project, these books can hold the answers. These days though, the world moves so fast, it's hard for books that were written months or years ago to keep up. They we have a new kind of encyclopedia that's online, free, built by thousands of people and changes every day. This household name is: Wikipedia. The idea that thousands of volunteers could create an online encyclopedia doesn't sound possible, but thanks to new technology and specific policies, Wikipedia has become one of the top 5 sites on the Web. The site is run by a not-for-profit foundation with a goal to provide everyone on the planet access to the sum of all human knowledge. To see how it works, let's get started with the 'wild' in Wildpedia. A wild is a kind of website that allows users to make changes to any page. They simply click, edit, make the change, and then save the page to share it with the world. This basic concept allows volunteers to contribute information on any subject in Wildpedia. And because Wikipedia is a website, there is no limit to the number of topics it can cover. Being a wild means that Wikipedia is always changing. When someone notable passes away, Wildpedia is updated. When news breaks, Wikipedia grows. It all works because tens of thousands of volunteers contribute, and also enforce rules to ensure Wikipedia remains a reliable source for factual information. These users, like any member, can see changes as they happen on each article. For example, if someone posts an advertisement on Wikipedia, which is forbidden, volunteers can easily reverse the change to maintain the article's integrity. This means every change to Wikipedia is reviewed and must observe two big rules. The first is verifiability, which is necessary to ensure high quality. For this reason, Wikipedia articles must rely on information from published sources like books or newspapers—resources known for fact-checking. Requiring contributors to cite these resources in articles and quotations ensures Wikipedia articles are factual and high quality. If it's not verified, it can't be in Wikipedia. The second rule requires a neutral point of view. All Wikipedia materials must be presented fairly and without bias, just like any other encyclopedia. This means Wikipedia is not a place for contributors to share their own opinions. It's these two rules and the volunteers who uphold them that make Wikipedia a reliable resource that grows each day. And you can be involved in the process of building a free encyclopedia—the largest encyclopedia in human history. What can we learn about Wikipedia from the talk? 录音在对维基百科的介绍中提到，这个网站由一个非盈利性机构(not-for-profit foundation)经营，目的是为地球上的所有人提供所有与人类有关的知识(provide...access to the sum of all human knowledge)，因此D项“它旨在提供所有与人类有关的知识”为正确答案。录音中提到，维基百科这个网站不限制话题的数量，因此A项“它限制它可以涵盖的话题的数量”与录音内容相反。维基百科的话题不受限，它不仅仅是关于书本的网上百科，所以B项“它是一种关于书的新型百科全书”不正确。录音讲的是维基百科由非营利性机构经营，它本身是一个网站，并非机构，因此C项“它是非常有名的非营利性机构”也不正确。
【正确答案】
D
【答案解析】[听力原文] What can users do in a wiki? 录音中提到，维基(wiki)是一种允许用户修改页面的网站，D项“对任何网页进行修改”是该处信息的录音原词，为正确答案。A项“修改维基百科的编辑原则”曲解了录音内容的原意，用户能修改的只是页面内容，但修改时必须遵守两大原则(two big rules，即verifiability和a neutral point of view)，这些原则不是用户能改变的。B项“了解一些突发新闻”利用了“一旦出现突发新闻，维基百科条目就会更新”这一内容来设置干扰项，与问题无关。C项“确保维基百科是可靠的”是无数志愿者在更新维基百科信息时希望达到的一个目标，因此也不正确。
【正确答案】
C
【答案解析】[听力原文] What is the second rule of Wikipedia? 录音靠后部分提到，第二个规则是保持中立(a neural point of view)。所有维基条目必须像其他百科全书一样保持中立态度，因此C项“所有呈现在维基百科的材料都必须是中立的”为正确答案。录音提到，维基百科不允许贡献者发表个人的观点，因此A项“所有贡献者必须发表他们自己的观点”与录音原文相矛盾。录音中说的是所有维基条目必须像其他百科全书一样保持中立态度，B项“材料应该和所有其他百科全书一样”曲解文意。D项“贡献者必须把维基百科建成最大的百科全书”利用了录音的最后一句“维基百科是人类历史上最大的百科全书”来设置干扰项，这并非问题问的第二条规则。