Alex Pang’s amusing new book The Distraction Addiction addresses those of us who feel panic without a cellphone or computer. And that, he claims, is pretty much all of us. When we’re not online, where we spend four months annually, we’re engaged in the stressful work of trying to get online.

    The Distraction Addiction is not framed as a self-help book. It’s a thoughtful examination of the dangers of our computing overdose and a historical overview of how technological advances change consciousness. A “professional futurist”, Pang urges an approach which he calls “contemplative (沉思的) computing.” He asks that you pay full attention to “how your mind and body interact with computers and how your attention and creativity are influenced by technology.”

    Pang’s first job is to free you from the common misconception that doing two things at once allows you to get more done. What is commonly called multitasking is, in fact, switch-tasking, and its harmful effects on productivity are well documented. Pang doesn’t advocate returning to a pre-Internet world. Instead, he asks you to “take a more ecological (生态的) view of your relationships with technologies and look for ways devices or media may be making specific tasks easier or faster but at the same time making your work and life harder.”

    The Distraction Addiction is particularly fascinating on how technologies have changed certain fields of labor-often for the worse. For architects, computer-aided design has become essential but in some ways has cheapened the design process. As one architect puts it, “Architecture is first and foremost about thinking.., and drawing is a more productive way of thinking” than computer-aided design.

    Somewhat less amusing are Pang’s solutions for kicking the Internet habit. He recommends the usual behavior-modification approaches, familiar to anyone who has completed a not smoking program. Keep logs to study your online profile and decide what you can knock out, download a program like Freedom that locks you out of your browser, or take a “digital Sabbath (安息日)”: “Unless you’re a reporter or emergency-department doctor, you’ll discover that your world doesn’t fall apart when you go offline.”

64. B) It somewhat restrains architects' productive thinking.

解析：题干问道作者认为计算机辅助设计是什么？根据题干中的computer-aided design定位至第四段第二、三句“For architects, computer-aided design has become essential but in some ways has cheapened the design process. As one architect puts it, “Architecture is first and foremost about thinking.., and drawing is a more productive way of thinking” than computer-aided design.”原文指出，对于建筑师来说，计算机辅助设计已经变得至关重要，但在某些方面已经降低了设计过程。正如一位建筑师所说的，“建筑首先是关于思考，而绘画是一种比计算机辅助设计更有效率的思维方式”，因此选B。A项它大大降低了建筑设计的成本，C项它在建筑师的工作过程中是不可缺少的，和D项它可以使建筑师免于费力的绘画，都没有在原文中提到。