A
(2018·山东潍坊一中高一下期末考试)
Excellent Smartphone Apps
According to the survey across the country，more and more teenagers become addicted to smartphones during their spare time and some even spend more than six hours playing games on smartphones a day during the holiday without parents' supervision.The phenomenon has drawn wide attention among experts and teachers.Here we'll introduce three apps to help solve the problem.
Space
Space helps you set goals to be more mindful of your screen usage.When you install (安装) Space，you'll complete a few questions about your smartphone habits and then select a user type that is the best match.The app then sets screen unlock and timeuse goals.The app will send notices as screen time increases and reward you with different badges (徽章) when you meet your goals.
AntiSocial
AntiSocial is one of the bestknown screenreduction apps.While it provides many of the standard functions like screen time limits and app blocking，it has an advantage.AntiSocial compares your screen usage data (数据) to your peers'，so you'll know if you're using your phone more than they do.
Off the Grid
For those who truly have a problem staying off that phone，Off the Grid may be for them.Off the Grid completely blocks your phone for a length of time you determine.If you want to use your phone after you turn on Off the Grid，it's going to cost you.The app will charge you $1 each time you end your offtime early.
【语篇解读】 本文介绍了三款优秀的智能手机应用程序，它们可以用来帮助人们控制使用手机的时间。
21．How does Space help its users?
A．By sending reminders.
B．By offering keys to their questions.
C．By setting proper life goals for them.
D．By rewarding them with more screen time.
解析：选A 细节理解题。根据Space中的“The app will send notices as screen time increases and reward you with different badges(徽章)when you meet your goals.”可知，Space通过发送提醒信息来帮助用户。故选A。
22．What is special about Off the Grid?
A．It blocks other apps.
B．It can turn on the phone.
C．It may charge some money.
D．It limits your time on the phone.
解析：选C 细节理解题。根据Off the Grid中的“The app will charge you $1 each time you end your offtime early.”可知，Off the Grid的特别之处是它可能会收取一些费用。故选C。
23．What do the three apps have in common?
A．They reduce screen time.
B．They have a rewarding system.
C．They are teenagers' favorite apps.
D．They compare the data from different people.
解析：选A 推理判断题。根据Space中的“The app then sets screen unlock and timeuse goals.”，AntiSocial中的“While it provides many of the standard functions like screen time limits and app blocking，it has an advantage.”以及Off the Grid中的“Off the Grid completely blocks your phone for a length of time you determine.”可知，这三款应用软件的共同之处是它们能减少用户使用手机的时间。故选A。
