单选题 Some anthropologists study modern-day societies of foragers in an effort to learn about our ancient ancestors who were also foragers. A flaw in this strategy is that forager societies are extremely varied. Indeed, any forager society with which anthropologists are familiar has had considerable contact with modern nonforager societies.
Which of the following, if true, would most weaken the criticism made above of the anthropologists' strategy?

A、 All forager societies throughout history have had a number of important features in common that are absent from other types of societies.
B、 Most ancient forager societies either dissolved or made a transition to another way of life.
C、 All anthropologists study one kind or another of modernday society.
D、 Many anthropologists who study modern-day forager societies do not draw inferences about ancient societies on the basis of their studies:
E、 (E) Even those modem-day forager societies that have not had significant contact with modern societies are importantly different from ancient forager societies.

【正确答案】 A

【答案解析】[解析] 段落推理为“一些人类学家想从对现代游牧社会的研究中去了解古代的游牧社会是有缺陷的，因为游牧社会是extremely Varied”。反对上述推理，主要反对原因。(A)选项中的“in common”与“Varied=different”相对应，很好地起到了反对作用。(E)易误选，但我们在明晰了问题目的之后，发现(E)中的“importantly different from”与段落推理中的“extremely varied”完全吻合，所以起到了支持作用。