Explanation for Question 23 From the Reading Section on the 2017 May Sat
Question 23 says over the course of the passage, 2 the main focus shifts from, uh, what, 3 to what? So for this question, 4 we're going to start off with the correct answer and talk about why it's 5 correct. And then we're going to talk about each of the incorrect answers and 6 why they're wrong. So the correct answer to this question is going to be 7 answered choices, see that it shifts from a description of an innovative procedure, 8 to an account of some specific applications of that procedure. 9 And we can see that very evidently throughout the passage. 10 We see that description of the innovative procedure it's introduced here in this 11 first highlighted thing, and then described a lot more in depth in 12 the following two paragraphs. And then each subsequent highlighted mark is a different 13 application that different researchers have used. So here you have Homan and a colleague 14 Eric, a goal, and then you have David kipping. 15 Oops, sorry. You can't see that David kipping at the Harvard Smithsonian center. 16 And then you have your Lithwick at Northwestern university. 17 So if you read through each of these, 18 you can see that they all represent different applications of this. 19 TTV the transit timing variation, 20 but let's talk about the rest of the answer choices. 21 So answer choice a says the summary of the results of several 22 experiments or Chronicle of the process used in one of those experiments. 23 So answer choice a is going to be incorrect. 24 It's ...