Explanation for Question 22 From the Reading Section on the 2017 May Sat
Question 22 says the author central claim in the passage is what? 2 So we're going to be able to determine what the author's central claim here 3 is in those first couple of paragraphs, 4 right? They're not going to really wait until the end of the passage to 5 tell us what the central theme is. And it can actually look at the 6 answer choices first here to see kind of an idea of what we should 7 be looking for. So ACEs TTV has enabled astronomers to determine more accurately than 8 before the massive certain planets outside of our solar system. 9 NASA's Kepler spacecraft provided Richard data. 10 There are more planets outside of our solar system and astronomers have gradually become 11 more and more skilled in using TTV. So you can see that two of 12 these answer choices are about TTV. One is about NASA's Kepler spacecraft, 13 and one is about like characterizing planets. 14 So if we look back at the first two paragraphs of 15 this passage, we can see that by the first paragraph, 16 they're introducing a new technology and up-and-coming or technique an 17 up-and-coming method of calculating the, 18 um, masses of alien worlds from the way they eclipse their stars. 19 And then you can go on to see that the new technique called transmit 20 timing variation is enabling astronomers to fill out their picture of dozens of exoplanets 21 detected by NASA's Kepler spacecraft. So that first sentence, 22 there has elements of two of the answer choices we were looking at, 23 right about...