What "structure" means here
Structure questions ask what a passage does, not what it says. Think of a passage as a tiny play. There's a setup, a turn, sometimes a conclusion. Your job is to label the parts. Once you can name the role each sentence is playing, the questions become almost mechanical.
Common structures the digital SAT loves:
- Claim, then evidence. Sentence 1 makes a claim; the rest of the passage backs it up.
- Common view, then twist. "Most people assume X. New research suggests Y." Watch for pivot words like however, surprisingly, in fact, recent studies.
- Problem, then solution. The passage names a difficulty and proposes (or describes) a fix.
- Comparison. Two ideas, two studies, two periods. The structure is parallel.
- Cause and effect. A change in one thing leads to a change in another.
If you can name the structure in five words, you've already done the question's hard work.
Purpose: what is the author trying to do?
Purpose questions ask why the author wrote a particular sentence or passage. The trick is to use verbs, not topics. The right answer is almost always something like:
- "to introduce a counterargument and then refute it"
- "to illustrate a general claim with a specific case"
- "to qualify an earlier statement"
- "to present a hypothesis the author finds compelling"
The wrong answers will often be topically true ("to discuss octopuses") but functionally wrong ("to discuss" is rarely a verb the SAT rewards; it's too vague). Look for verbs that capture movement in the passage: introduce, complicate, support, undermine, qualify, illustrate, contrast.
Cross-text connections: hold both texts at once
Cross-text questions show you two short passages, usually 50 to 80 words each, that disagree, agree, or build on each other. Almost every question reduces to one move: name the relationship between the two texts in plain English first.
Useful frames:
- Text 2 agrees with Text 1 (rare).
- Text 2 flatly disagrees with Text 1.
- Text 2 qualifies Text 1 (accepts part, refines part). This is the most common.
- Text 2 extends Text 1 (adds a new wrinkle without contradicting).
- Text 2 reframes Text 1 (changes the lens entirely).
Once you've named the relationship, scan the answer choices for the verb that fits. If you predicted "qualifies" and one choice contains "complicate" or "refine", you're probably home.
The most common cross-text trap
The "all-or-nothing" answer. The trap choice will say Text 2 completely refutes or fully supports Text 1, when in reality Text 2 only addresses one piece of Text 1's argument. Always ask: does Text 2 even talk about this part of Text 1? If not, it can't refute or support it.
A worked structure example
"Plants don't have brains. Yet a growing body of research shows that they exchange chemical signals with neighbors, prioritize threats, and even appear to 'remember' past stresses. Scientists are now asking whether 'cognition' has been defined too narrowly."
What is sentence 3 doing? It's not summarizing, and it's not adding a new fact. It's pulling back to suggest a larger implication. A purpose answer like "introduce a question raised by the preceding evidence" fits perfectly. An answer like "describe plant biology" would be topically true but functionally wrong.
How to train this
- For every passage you read, write the structure in five words: "Old view, new study, qualification."
- Practice naming the role of each sentence: setup, evidence, twist, takeaway. It's the same skill an editor uses, and it gets fast quickly.
- For cross-text sets, predict the relationship before reading any answer choice. The answer often becomes obvious before you've finished reading the four options.