Archaeologists mapping the Silk Road have traditionally relied on field surveys and historical texts, but satellite imagery is now revealing caravanserai ruins and dried riverbeds invisible from ground level. These discoveries suggest that trade routes were more numerous and fluid than once believed, shifting in response to climate fluctuations and political alliances. By integrating remote sensing with on-site excavation, scholars hope to construct a more dynamic picture of trans-Eurasian exchange.
Which of the following best states the author’s primary purpose?
- To recommend that archaeologists abandon on-site excavation in favor of less expensive remote-sensing techniques
- To dispute the accuracy of historical texts that describe Silk Road commerce as profitable
- To show how satellite technology is reshaping scholarly understanding of the complexity and variability of Silk Road trade routes (correct answer)
- To argue that climate fluctuations had a negligible impact on the course of ancient trade networks
Explanation: Reading comprehension questions about primary purpose require you to identify the author's main goal—what they're trying to accomplish with the entire passage, not just individual details. The author's primary purpose is to demonstrate how satellite technology is transforming our understanding of the Silk Road's complexity. The passage follows a clear structure: it starts with traditional archaeological methods, introduces satellite imagery as a game-changer that reveals previously hidden features, explains how these discoveries are reshaping our view of trade routes as "more numerous and fluid," and concludes with the integration of new and old methods to create a "more dynamic picture." This progression shows how technology is revolutionizing scholarship. Choice A misrepresents the author's position—they advocate for "integrating remote sensing with on-site excavation," not abandoning traditional methods. Choice B is completely off-target since the passage never discusses or disputes the profitability of Silk Road commerce. Choice D contradicts the text, which explicitly states that trade routes shifted "in response to climate fluctuations," indicating climate had significant impact, not negligible impact. Choice C correctly captures the author's central message: satellite technology is revealing new insights about the variability and complexity of ancient trade networks, fundamentally changing how scholars understand the Silk Road. When tackling primary purpose questions, look for the passage's overall trajectory and tone. Ask yourself: "If I had to summarize what this author is trying to show or prove in one sentence, what would it be?" Avoid answers that focus on minor details or misstate the author's position.