SAT #16 Reading (Question 22)

Question

The primary purpose of the passage is to [...]?

Answer 1

Answer Choice A is the correct answer because the Passage primarily concerns the history and development of the bionic leaf, as well as its overall importance. The Passage is titled, “The Bionic Leaf,” and Lines 1-2 begin the Passage by saying, “Harvard scientists have created a ‘bionic leaf’ that converts solar energy into a liquid fuel.” Taking all these together, we should choose Answer Choice A which says that the purpose of the passage is to “discuss the development and significance of the bionic leaf.” Answer Choice B is incorrect because the Passage doesn’t focus on or even discuss “current commercial uses of the bionic leaf,” but only suggests how it may be important in the future for serving rural, undeveloped areas. Answer Choice C is incorrect because the Passage doesn’t show any debate surrounding the bionic leaf and its effectiveness, but instead tracks its development and mechanics. Answer Choice D is incorrect because, while the Passage does discuss the differences between the artificial leaf and the bionic leaf, it doesn’t take this difference as a primary focus but instead discusses both to show the history and development of the bionic leaf.

How to solve this? The Question asks, “The primary purpose of the passage is to [...]?” Because this is a [big picture type question], asking about the primary purpose of the passage, we should begin by reading the subtitle for the Passage as well as the introductory paragraph, looking for any clear theses or topical sentences. The title [...].