If you need to call your parents but your phone is not with you, can you remember their numbers?

    To remember 11 numbers is not difficult. because of the smartphone (智能手机), many of us(lose) this ability ,Chinese dailyreported. What's more, smartphones make our skills at giving directions weak, as well as(kill) face-to-face communications. Even when friends are having a meal together,common for most to check their phones.

    According to a report byKleiner Perkins Caufield Byers,American company, Chinese people spend on average 170 minutes on their smartphones daily. For students, an addiction(上瘾) to smartphones does no good for(study). Research in Japan showed children who spend more than four hours a day on their phones do much worse(bad) in school tests than those who play with their phones for 30 minutes.

    It's true that the smartphone has made our lives easier. But many also think they spend too much time on it, and this is bad for their studywork. People are trying to change that.

    A new app(应用程序) named Forest(introduce) this month. It lets users plant a seed (种子) that grows into a tree over the next 30 minutes. During the half hour, users cannot use their phones, or the tree will die.

    A restaurant in Los Angeles, US, gives people a 5 % discount (折扣)if they don't check their phones during a meal. Owner Mark Gold said that he hopes it gives people a way to enjoy their meal and really talk with friends and familyperson.