47. According to the passage, what is the advantage of text reading?
- A. It gives one access to huge amounts of information.
- B. It allows more information to be processed quickly.
- C. It is capable of enriching one's life.
- D. It is conducive to critical thinking.
答案：D
答案句：It is text that enables us to “uncover lies, confusions and overgeneralizations, and to detect abuses of logic and common sense. It also means to weigh ideas, to compare and contrast assertions, to connect one generalization to another.”
参考译文：正是文字使我们能够“揭露谎言、混淆和过度概括，并发现逻辑和常识的滥用。它还意味着权衡观点，比较和对比断言，将一个概括与另一个联系起来。”
定位线索：题干“advantage of text reading”→答案句“It is text that enables us to...”；文中“uncover lies, confusions...detect abuses of logic”对应选项D“conducive to critical thinking”（有助于批判性思维）。
解析：题干问文字阅读的优势，答案句明确指出文字使我们能揭露谎言、发现逻辑滥用、权衡观点等，这正是批判性思维的核心。选项B“more information processed quickly”无中生有；选项C“enriching one's life”范围过大；选项A“access to huge amounts of information”偷换概念，原文强调思考能力而非信息量。正确选项D是对原文能力的概括。
49. What does the passage say about the World Wide Web?
- A. It was developed primarily for universities worldwide.
- B. It was created to connect people in different countries.
- C. It was viewed as a means to quest for knowledge.
- D. It was designed as a discussion forum for university students.
答案：C
答案句：When it emerged towards the end of the 1980s as a purely text-based medium, it was seen as a tool to pursue knowledge, not pleasure. Reason and thought were most valued in this garden-all derived from the project of the Enlightenment.
参考译文：当它在20世纪80年代末作为一种纯文本媒介出现时，它被视为追求知识而非娱乐的工具。在这个花园中，理性和思想最受重视——这一切都源于启蒙运动。
定位线索：题干“World Wide Web”→答案句“When it emerged...as a purely text-based medium”；文中“seen as a tool to pursue knowledge”对应选项C“viewed as a means to quest for knowledge”（被视为追求知识的手段）。
解析：题干问关于万维网的说法，答案句明确指出它被视为追求知识的工具。选项A“developed primarily for universities”范围缩小，原文说大学是首批连接者，并非主要目的；选项B“connect people in different countries”无中生有；选项D“designed as a discussion forum”偷换概念，原文说它承载讨论组，但并非设计目的。正确选项C是原文“tool to pursue knowledge”的同义转述。
50. What do we learn about users of social media?
- A. They are bent on looking for an alternative space for escape.
- B. They are constantly seeking approval from their audience.
- C. They are forever engaged in hunting for new information.
- D. They are unable to focus their attention on tasks for long.
答案：B
答案句：Instead of a quest<TAB>for knowledge, it engages us in an endless zest(热情)for instant approval from an audience, for which we are constantly but unconsciously performing. (
参考译文：它不再追求知识，而是让我们陷入对观众即时认可的无限热情中，为此我们不断无意识地表演。
定位线索：题干“users of social media”→答案句“it engages us in an endless zest for instant approval”；文中“instant approval from an audience”对应选项B“constantly seeking approval from their audience”（不断寻求观众认可）。
解析：题干问社交媒体用户的情况，答案句明确指出他们陷入对观众即时认可的无限热情中。选项A“alternative space for escape”偷换概念，原文说社交媒体殖民了网络，并非逃避空间；选项C“hunting for new information”与原文“Instead of a quest for knowledge”相反；选项D“unable to focus attention”无中生有。正确选项B是原文“endless zest for instant approval”的同义转述。