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(22)In a recent study carried out by psychologists on the disruptive effects of smart phones, two groups of college students were given word-search puzzles. The first group was told to complete the puzzles with its participants' smart phones in their line of sight. The second group, however, was told that the phones would interfere with the equipment in the experiment and would need be moved away from the testing area. Midway through the second group's solving of the puzzles, the experiment called one of the phones and let it ring for a while before hanging up. (23)Many of the students in that group were unable to focus from then on, becoming anxious and performing more poorly than the first group.
Use of electronics has also been known to lead to a decline in human interactions. Rather than having real-life conversations, many express emotions and engage in deep conversations through social media sites. Many students use their phones and computers during class for non-academic activities, which leads to poor grades. (24)Perhaps the most dramatic impact is the reduction in amount of sleep, which lead to poor health and weight gain.
(25)Technology is a great tool. However, it's important to recognize its downsides. Lack of sleep, reduction of productivity, and weight gain are only a few. If we are not careful about all these mind problems right now, the effect on the future generation is going to be much bigger.
未听先知
预览四道题各选项,由smartphone、eyesight、concentrate、experimenter、decline、 sleep等词可推测， 短文内容与智能手机有关,可能涉及智能手机会给人们带来什么负面影响、如何避免这种影响等内容。
详解详析
22. What were the college students in both groups required to do in the study?
详解 A)。短文开头提到,在心理学家最近进行的一项关于智能手机破坏性影响的研究中,两组大 学生被要求做字谜游戏。因此答案为A)。
23. What do we learn about many of the students in the second test group after the phone ring?
详解 B)。短文中提到,在第二组学生解字谜的过程中,实验人员拨打了一位学生的手机,让它响 了一会才挂断。之后,第二组的许多学生无法集中注意力,他们变得焦虑,表现得比第一组更差。因此 答案为B)。
24. According to the passage, what is the most dramatic impact of smart phone use?
详解 C)。短文提到,智能手机会带来各种负面影响,如人际交往和学业问题,但最大的影响是睡 眠时长的缩短,这会导致健康状况不佳和肥胖问题。因此答案为C)。
25. What does the speaker suggest people do?
详解 C)。短文最后提到,科技是个伟大的工具,但认识到它的负面作用是很重要的,睡眠的减少、 生产力的降低、肥胖等问题仅仅是冰山一角。如果我们不注意这些小问题,对后代的影响将会更大。 由此可知,讲话者建议人们要认识到技术的破坏性影响。因此答案为C)。