、
概括法( (generalization)与举例法类似,这两者都是用事例来说明主题句。概括法强调
论是建立在几个所给的例子作为事实或观点的基础上得出的,而且这一结论是明显的,或
者是被读者认可的。例如:
【例19)
The surtace of the earth is chiefly water something that we, as dwellers on the
land, are apt to ignore or completely forget. As noted earlier, the Pacific Ocean alone
wers nearly one third of the globe. The combined areas of all water bodies, including
oceans, seas, and lakes, add up to nearly two and one-half times that of all the land of the
earth. In other words, about 71 per cent of the earths surface is water. In addition to the
rge expanses just mentioned, there are small ponds, waters that run as streams on top of
the land, and other waters that lie or move within the upper portion of the earth's crust
And there is water in vapor and condensed forms in the atmosphere. Thus, water is an
important and practically all-pervasive element in man's habit
本段首先陈述水面占地球大部分的事实、然后以水的各种形态大洋、海、湖、池塘、
溪流以及蒸汽等为例来支撑前面的观点,最后总结水对人类居住的重要性。
第三节段落的特征
