Average number of hours a student spends on the computer per week
As is shown by the bar graph, the average number of hours a student in a certain university spends on the computer per week increased dramatically over the period from 1990 to 2000. In 1990, it was less than two hours. And in 1995, it hit/reach four hours. And in 2000, the number soared to nearly twenty hours, which is over ten times than that of 1990.
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文章要有长有短为上品
Obviously computers are becoming increasingly popular for males and for females压尾韵. A multitude of factors could account for the rise. In the first place, computers facilitate us in more aspects of life. Also, the rapid development of the internet enlarges our demands for using computers. We can easily contact friends in remote places through the internet. In the second place, the prices of computers are getting lower and lower, which enable more students to purchase them.
rapid/fantastic/fast/amazing/remarked
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However, there still exist some problems, such as, poor quality, out-of-date designs and so on. And how to balance the time between using computers and studying is also a serious problem. Anyhow, we will benefit a lot from computers as long as we use them properly.
as long as = if