With the development of the science and technology,the computer has been becoming the necessity for people in the 21st Century.Following,network is of close link with our life,bringing us incomparable convenience on our life and work.
Through the network,we can search for useful datas and get to know the current events.When you play computer games after a long-time work,it can relieve your pressure and make you feel relaxed.Besides,playing online games is not all bad,for it can fulfil students entertaining requests as well as practise their response ability.
However,there still exists some disadvantages in the network.The radiation from the computer will do harm to peoples health if you keep on watching the computer for a long time.And short sight may caused by it for your eyes stay tense.At present,there are too many games on the Internet,but some of them are not of good quality even contain some unhealthy content like violence and so on.Duo to the lack of recognizing society and self-protection awareness,some students get addicted in the games and online dating. In fact,network is not that horrible,as long as we know more about it,it will become our right hand on our studies.Lets build a clean network world together.
A couple of years ago, individuals can only take courses at real schools. In other words, only when they go out to schools by themselves will they have lessons which they want to have. However in recent years, with the development of internet and education mode, online teaching has become increasingly common. This kind of teaching mode means that a student just needs to have classes sitting in front of a computer at home, which appealing to lots of people.
It is widely acknowledged that online teaching has its apparent merits. First and foremost, shared resources online are accessible to all people, which costs a little at the same time. This feature brings about significant benefits especially to those who fail to afford that many courses at real schools. Secondly, online teaching makes it come a reality that one is able to study at the best pace suitable for him according to his own schedule. Last but not least, studying at home without going out is much more comfortable as well as convenient to busy people in contemporary society.
Meanwhile, there is no denying that online teaching also has demerits that cannot be dismissed. For one thing, online teaching, not like face-to-face teaching, lacks interaction between teachers and students, causing teachers not to receive feedbacks from students in time. For
another thing, for people who are poor at self-discipline, learning online at home will be a less effective way since they are easier to be distracted by other things. Besides, all of online teaching courses are ready-made rather than custom-made, that is to say, it is troublesome to be flexible when changes are needed.