（1）With the development of technology，mobile phones are widely used among people．We can find many people using mobile phones in the buses，restaurants and supermarkets．We call these people Phubbers（低頭族）．We often see many phubbers using their mobile phones in the street．It is really dangerous for them．
    Mobile phones have also become a problem for the students．（2）許多學生花太多的時間在手機上玩游戲和聽音樂。They don't have enough time to study．Some parents complain（抱怨）that their children get worse（更糟）grades than before．Using mobile phones very often is also bad for their eyes．That's why so many students have to wear glasses now．（3）The more they use mobile phones，the more tired their eyes will become．Many teachers say that students should not have mobile phones at school．（4）他們告訴學生不要帶手機到學校來。Because the students sometimes leave their mobile phones at school．（5）Their mobile phones may be easily lost．
    Why not put down your mobile phones？You should take part in more outdoor activities instead of（而不是）using mobile phones all the time．

（1）

隨著科技的發(fā)展，手機被人們廣泛使用。

隨著科技的發(fā)展，手機被人們廣泛使用。

（2）

Many students spend too much time playing games and listening to music on their phones.

Many students spend too much time playing games and listening to music on their phones.

（3）

他們使用手機越多，他們的眼睛就會變得越累。

他們使用手機越多，他們的眼睛就會變得越累。

（4）

They told the students not to bring cell phones to school.

They told the students not to bring cell phones to school.

（5）

他們的手機可能很容易丟失。

他們的手機可能很容易丟失。