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  3. More than two-thirds of adults in the United States are overweight and half of them are trying to lose weight. According to a re

More than two-thirds of adults in the United States are overweight and half of them are trying to lose weight. According to a re

admin2022-07-24  69
问题     More than two-thirds of adults in the United States are overweight and half of them are trying to lose weight. According to a recent study, led by Evan Forman, a psychology professor from Drexel University, a smartphone app called OnTrack can predict ahead of time when users are likely to lapse (放弃) their weight loss plans and help them stay on track.
    People on weight loss plans often experience lapses, which can prevent successful weight loss or even lead to weight regain, according to Forman. The study evaluated the effectiveness of the app among weight loss program participants, individuals attempting to follow an online weight management plan from Weight Watchers for eight weeks.
    OnTrack uses advanced statistical methods—machine learning—to learn over time a user’s individual patterns of eating. Specifically, it learns patterns that are predictive of staying on one’s weight loss plan and patterns that are predictive of lapsing from one’s plan. When the app detects the risk of lapsing is high, it sends a special coaching message that matches the reasons that someone is at risk. For example, the app can predict a person is eating late at night because of being bored at home with tempting(诱人的) food. The predictions get better over time as the app learns a user’s behavioral pattern.
    According to Forman, over the course of the study, participants averaged a 3. 13 percent weight loss and reduction in unplanned lapses. The next step is clinical trial to confirm the app’s ability as a weight loss tool.
Which of the following would Forman agree with?
选项 A、OnTrack may have side effects.
B、OnTrack is a clinically proven weight loss tool.
C、OnTrack is popular among young people.
D、OnTrack may be double-edged.
答案A
解析 根据文章最后一段第一句“According to Forman，over the course of the study，participants averaged a 3．13 percent weight loss and reduction in unplanned lapses．”可知，这款软件帮助人们保持减肥计划，所以他赞同的观点应是OnTrack在预测放弃计划方面做得很好，故选A。
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