进入21世纪,各国青少年花在各种媒介上的时间急剧增长,甚至有超过他们在教室上课总时数的趋势。不少教育学家指出,媒介已经成为当代青少年的“第二课堂”。如今媒介技术的发展真的已经达到令人目不暇接的程度,报刊、广播、电视、互联网就不用说了,无线网络技术的快速发展让平板电脑、智能手机成为新宠,人们随时随地都能上网。随着媒介技术的发展,各式各样携带海量信息的媒介成为我们所“见”所“闻”的主要来源。这一方面极大拓展了我们的视野,足不出户就能知晓天 In the 21st century, the time spent by youth in various media has dramatically increased, even exceeding their total class hours in the classroom. Many educators point out that the media has become the “second class” of contemporary youth. Nowadays, the development of media technology has really reached dizzying proportions. Needless to say, newspapers, radio, television and the Internet have become increasingly ubiquitous. The rapid development of wireless network technology has made tablet computers and smart phones the new favorite. People can surf the Internet anytime, anywhere. With the development of media technologies, a wide range of media carrying vast amounts of information has become the main source of our “news”. On the one hand, it greatly expands our horizons and knows the day without leaving home