proper use of smart phones英语作文
Mobile phones
As every body knows,mobiles are playing an important part in our daily life nowadays.But they have both advantages and disadvtanges in my opinion.
Firstly,mobiles make it convinent for people to keep in touch with each other wherever they are.Especially when they have something important,mobile phones help avoid people travelling long distance to get to know the things in person.
Secondly,we can send messages by mobiles with little money,just 0.01 yuan for each short message.
Thirdly,we can also play games or take photos or listen to music on the mobiles.However,mobile phones also have many disadvatages.We have to pay for the wrong numbers which are not for us.The radioactivites may do harm to our health.Sometimes the rings may affect others in public places or at meetings.So we should be careful and make our phones powered-off in some occassions.
