观点类的第三种情况是驳论,比较少见。这类文章大多分为三段,第一段说明一种现象、一种做法或者一种观点,第二段进行批驳,第三段下结论。这里有两个重要问题,一是批驳句出现的位置,二是批驳句的性质问题。批驳句绝大多数情况下出现在第二段的首句,但也有出现在第一段末句的情形。批驳句有第一人称作主语的主观批驳,如I cannot agree with the above opinion;还有非人称主语句,即客观批驳,如It is not the real case。
From the chart we can see clearly that the average number of hours a student spends on Internet per week has increased from less than two hours in 1998 to nearly four hours in 2000, and then to 20 hours in 2004.
如果是最常见的是2*3的情形,可以描述如下:
From the chart, we can see clearly that in a big city in China, stateowned houses declined from 75% in 1990 to 60% in 1995 and then to 20% in 2000, while private houses rose from 25% to 40% and then to 80% during the same period.