Reading Comprehension (RC) | Re: Anthropologists once thought that the ancestors of modern humans began

Question1

­To answer primary purpose questions, first think through the structure of the passage. Why did the author write each paragraph?

Here's a structural breakdown of thispassage:

• Paragraph 1: The author introduces an oldtheory . This theory held that humans started making stone tools, and then began walking on two legs so their hands would be free to use those tools. Then, the author undermines this oldtheory.  He/she says that the timeline is all wrong -- in fact, people started walking on two legs BEFORE they made stonetools.
  
• Paragraph 2: The author provides more info to undermine the oldtheory . He/she talks about fossils that support the idea that bipedalism happened BEFORE stonetools.
  
• Paragraph 3: The author introduces a new theory to explain why people started walking on two legs: so that parents could better care for their young as part of a nuclear family. The author then discusses
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  Statistics : Posted by GMATNinja • on 21 Dec 2011, 15:41 • Replies 39 • Views 49754

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