以下将为正在备战GMAT考试的同学们整理一些经典的GMAT阅读试题，并分多个合集推出，希望能够为正在备考GMAT考试的考生提供或多或少的帮助。

　　6. GWD-6-Q5 to Q7发生在北美的史前物种灭绝是人为的么

　　According to a theory advanced

　　by researcher Paul Martin, the wave

　　of species extinctions that occurred

　　Line in North America about 11,000 years

　　(5) ago, at the end of the Pleistocene era,

　　can be directly attributed to the arrival

　　of humans, i.e., the Paleoindians, who

　　were ancestors of modern Native

　　Americans. However, anthropologist

　　(10) Shepard Krech points out that large

　　animal species vanished even in areas

　　where there is no evidence to demon-

　　strate that Paleoindians hunted them.

　　Nor were extinctions confined to large

　　(15) animals: small animals, plants, and

　　insects disappeared, presumably not

　　all through human consumption. Krech

　　also contradicts Martin’s exclusion of

　　climatic change as an explanation by

　　(20) asserting that widespread climatic

　　change did indeed occur at the end of

　　the Pleistocene. Still, Krech attributes

　　secondary if not primary responsibility

　　for the extinctions to the Paleoindians,

　　(25) arguing that humans have produced

　　local extinctions elsewhere. But,

　　according to historian Richard White,

　　even the attribution of secondary

　　responsibility may not be supported

　　(30) by the evidence. White observes that

　　Martin’s thesis depends on coinciding

　　dates for the arrival of humans and the

　　decline of large animal species, and

　　Krech, though aware that the dates

　　(35) are controversial, does not challenge

　　them; yet recent archaeological

　　discoveries are providing evidence

　　that the date of human arrival was

　　much earlier than 11,000 years ago.

　　新老观点

　　逻辑简图：

　　1P: theory(PM) attributes to human(P)…

　　However, SK points out no evidence to demonstrate, also contradict…

　　SK still attributes to secondary P

　　But, RW may not be supported… yet recent discoveries…

　　以上就是本期GMAT试题的所有内容，考生可以此为据并进行针对性的练习，逐步掌握GMAT阅读的解题规律及技巧，以达到迅速提高GMAT考试成绩的目的。 相关链接：

1.GMAT考试资料：GWD试题合集（十）

2.GMAT考试资料：GWD试题合集（九）

3.GMAT考试资料：GWD试题合集（八）

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