28. What is the book aimed at?
- A. Teaching critical thinking skills.
- B. Advocating a simple digital lifestyle.
- C. Solving philosophical problems.
- D. Promoting the use of a digital device.
答案：B
答案句：The goal of this book is to make the case for digital minimalism, including a detailed exploration of what it asks and why it works, and then to teach you how to adopt this philosophy if you decide it’s right for you.
参考译文：这本书的目标是为数字极简主义辩护，包括详细探讨它要求什么以及为什么有效，然后教你如何在认为它适合你时采纳这一理念。
定位线索：题干“What is the book aimed at”定位到首段“The goal of this book”；文中“make the case for digital minimalism”对应选项B“Advocating a simple digital lifestyle”中的“advocating”和“simple digital lifestyle”。
解析：题干问书的目的是什么，答案句直接说明书的目的是“为数字极简主义辩护”，即倡导一种简单的数字生活方式，对应B项。A项“教授批判性思维”、C项“解决哲学问题”、D项“推广数字设备使用”均与原文无关，属于无中生有。
29. What does the underlined word “declutter” in paragraph 3 mean?
- A. Clear-up.
- B. Add-on.
- C. Check-in.
- D. Take-over.
答案：A
答案句：Part one concludes by introducing my suggested method for adopting this philosophy: the digital declutter. This process requires you to step away from optional online activities for thirty days. At the end of the thirty days, you will then add back a small number of carefully chosen online activities that you believe will provide massive benefits to the things you value.
参考译文：第一部分以介绍我建议的采纳这一理念的方法结束：数字清理。这个过程要求你远离可选的在线活动三十天。三十天结束时，你再添加回少量精心选择的、你认为会对你重视的事物带来巨大益处的在线活动。
定位线索：题干“declutter”定位到第三段“the digital declutter”；文中“step away from optional online activities”和“add back”暗示“清除”含义，对应选项A“Clear-up”。
解析：词义题需结合上下文。答案句说明“declutter”要求“远离可选的在线活动三十天”，之后再“添加回”少量活动，可见其核心是“清除”多余内容，对应A项“Clear-up”。B项“Add-on”与“step away”矛盾，C项“Check-in”和D项“Take-over”均与语境无关，属于偷换概念。
30. What is presented in the final chapter of part one?
- A. Theoretical models.
- B. Statistical methods.
- C. Practical examples.
- D. Historical analyses.
答案：C
答案句：In the final chapter of part one, I’ll guide you through carrying out your own digital declutter. In doing so, I’ll draw on an experiment I ran in 2018 in which over 1,600 people agreed to perform a digital declutter. You’ll hear these participants’ stories and learn what strategies worked well for them, and what traps they encountered that you should avoid.
参考译文：在第一部分的最后一章，我将指导你进行自己的数字清理。为此，我将引用2018年进行的一项实验，其中超过1600人同意进行数字清理。你会听到这些参与者的故事，了解哪些策略对他们有效，以及他们遇到的你应该避免的陷阱。
定位线索：题干“final chapter of part one”定位到第四段“In the final chapter of part one”；文中“participants’ stories”和“strategies”对应选项C“Practical examples”。
解析：题干问第一部分最后一章呈现了什么。答案句提到“参与者的故事”和“策略”，这些都是实际案例，对应C项“Practical examples”。A项“理论模型”、B项“统计方法”、D项“历史分析”均未提及，属于无中生有。
31. What does the author suggest readers do with the practices offered in part two?
- A. Use them as needed.
- B. Recommend them to friends.
- C. Evaluate their effects.
- D. Identify the ideas behind them.
答案：A
答案句：Each chapter concludes with a collection of practices, which are designed to help you act on the big ideas of the chapter. You can view these practices as a toolbox meant to aid your efforts to build a minimalist lifestyle that works for your particular circumstances.
参考译文：每一章都以一系列实践结束，这些实践旨在帮助你落实章节的主要观点。你可以将这些实践视为一个工具箱，旨在帮助你建立适合自己特定情况的极简生活方式。
定位线索：题干“practices offered in part two”定位到第五段“Each chapter concludes with a collection of practices”；文中“a toolbox meant to aid your efforts”和“works for your particular circumstances”对应选项A“Use them as needed”。
解析：题干问作者建议读者如何处理第二部分提供的实践。答案句将实践比作“工具箱”，并强调“适合你的特定情况”，暗示按需使用，对应A项“Use them as needed”。B项“推荐给朋友”、C项“评估效果”、D项“识别背后的想法”均未在原文提及，属于无中生有。