如何快速解读 TOEFL Reading 事实细节题:
基本上, TOEFL 阅读之事实细节(Factual Detail Information)题型,
作答原则务必先审视题干之叙述, 搜索出关键字词, 原文定位, 再进行
讯息判断.
以TPO31其中一篇阅读篇章中的题目为例:
Geographic isolation also can proceed slowly, over great spans of time.
We find evidence of such extended events in the fossil record, which
affords glimpses into the breakup of formerly continuous environments.
For example, during past ice ages, glaciers advanced down through North
America and Europe and gradually cut off parts of populations from one
another. When the glaciers retreated, the separated populations of
plants and animals came into contact again. Some groups that had
descended from the same parent population were no longer
reproductively compatible- they had evolved into separate species.In
other groups, however, genetic divergences had not proceeded so far, and
the descendants could still interbreed- for them, reproductive isolation
was not completed, and so speciation had not occurred.
1. According to this paragraph, separation of subpopulations by glaciers
resulted in speciation in those groups of plants and animals that
(A) were reproductively isolated even after the glaciers disappeared
(B) had adjusted to the old conditions caused by the glaciers
(C) were able to survive being separated from their parent population
(D) had experienced some genetic divergences from their parent
population
根据段落, 由冰河所形成次级种群 (subpopulation)之分隔导致在动植物群落
中之物种形成(speciation) 为何
关键字词