Question 25 is based on the passage you have just heard.

Passage Three

听力原文

    In a recent study carried out by psychologists on the disruptive effects of smartphones, (22) [two groups of college students were given word search puzzles.] The first group was told to complete the puzzles with its participants’ smartphones in their line of sight. The second group, however, was told that the phones would interfere with equipment in the experiment and would need to be moved away from the testing area. Midway through the second groups solving of the puzzles, the experimenter 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 the amount of sleep, which leads 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 minor problems right now, the effect on the future generation is going to be much bigger.

25. What does the speaker suggest people do?

解析：B。四个选项均为动词原形词组，推测题目可能问要做的事情是什么。录音结尾说，技术是一种伟大的工具。然而，认识到它的负面影响也很重要。随后又在录音最后一句说到，如果我们现在不注意所有这些小问题，下一代将会受到更大的影响。也就是说，讲话者建议，我们应该认识到科技的负面影响，B项的Realize对应录音中的recognize，disruptive effects对应录音中的downsides，因此B项正确。

错项排除：虽然录音中提到了sleep和productivity，但只是列举了技术的负面影响，并没有直接建议人们要保证睡眠充足或提高生产力，故A、C两项排除。录音开头提到line of sight作为干扰，但与视力（eyesight）无关，也没有建议保护年轻一代的视力，故D项排除。