The computer and the Internet have become part of teens' life. The number of teen Internet users in China is g bigger, up to 253 million. The number shows a greatincrease(增长) in Internet users in China over the last  fyears, especially among teenagers. And China becomes a l arge market for Internet b.

    A newsurvey(调查) shows that Chinese teens show  i in online activities. They seem not to know that spending too much time before a computer s is bad for their health. According to the survey, 42.6% of teens have built their o web blogs. More than half enjoy c online with friends and 10.6% of teens play Internet games. It is a p that only 6% use the Internet to get information for their learning projects! Also, the survey finds that the teens have different favourite p to use the Internet. For teens in towns, 35% choose Internet bars as a main place to go online. For those living in large cities, 76% use home computers.

    Too much time online certainly l to problems for their young life. Should teens think more about whatrole(角色) a computer plays?