mobile phone
being a product of high-technology,mobile phones are being more and more widely used. it's small in size, light in weight and easy to carry, offering fast and convenient service for communication.it's of multi-function. the users use it for calling, sending short messages and internet-surfing.
in recent years, mobile phones have become popular among middle school students. quite a few use them at school to keep in touch with their families and friends instead of writing letters, which, of course brings convenience to them. but i don't think it's good to do so.
in spite of the advantage mentioned above, student users often waste a lot of time chatting over the phone in their spare time, some even use them to cheat in exams. in addition, mobile phone bill is also a heavy burden on students' families.