Read the passage first
The lesson below refers to this passage.
Two Ways to Describe a Canal
Overview
Paired texts may illuminate one subject with different purposes. Comparison begins with an accurate account of each text, followed by the shared ground and the distinct contribution. Avoid forcing the writers into opposition when they agree on a goal but emphasize different aspects of it.
“Two Ways to Describe a Canal” pairs engineering function with personal understanding. The overview explains why outlet clearance matters: an open channel cannot function as intended if its exit is blocked. The recollection moves from leaf boats to recognizing the same narrow places during cleanup. It adds a change in perspective rather than flow measurements. The two accounts complement one another, but together they still do not provide a complete flood record. A personal observation can be partial and meaningful without being false.
“Keeping the Reading Room” distinguishes usable table space, obtaining a known book, and encountering an unfamiliar one. The reader supports accessible tables, then asks how discovery will survive the move. Measuring retrieval time addresses the report's concern but not the reader's full concern. Tracking useful unexpected discoveries through a display or shelf list would test the added criterion. The reader's suggestion therefore qualifies implementation instead of demanding abandonment of accessibility.
For a synthesis, include the shared objective and the unresolved difference in emphasis. For an evidence question, choose the detail establishing agreement rather than one illustrating disagreement. For a proposed improvement, identify which writer's concern the new measure answers. Transfer this approach by naming each text's purpose and asking what one supplies that the other lacks. Then check the boundary of the combined evidence before inferring a result neither text demonstrates.
Apply the method to a complete new context
Read the whole passage before choosing an answer.
Two Accounts of the Mill
Text A — Museum guide The mill's wheel turned when water from the upper pond flowed through a wooden channel onto its paddles. Its shaft drove two millstones, which ground about forty bags of grain on a typical day. Gates on the channel let the miller slow the flow when the pond was low.
Text B — Former worker As a boy, I swept flour at the mill. I learned the pond's level from the sound of the wheel: a steady knock meant a full day, and a slow, uneven creak meant the miller would soon close the gates and send us home early.
How do the purposes of the two texts differ? A. Text A argues for restoring the mill, while Text B argues against restoring it. B. Text A recalls childhood work at the mill, while Text B explains how the wheel was built. C. Text B corrects Text A's account of when the miller used the channel gates. D. Text A explains the mill's operation, while Text B conveys a worker's experience of it.
The supported answer is D: Text A explains the mill's operation, while Text B conveys a worker's experience of it. The guide describes the mechanism and its output; the worker describes the same operation through sound and its effect on his day. Choice C invents a disagreement: closing the gates when the pond ran low matches Text A's description instead of correcting it.
When paired texts share a subject, describe what each one is for before deciding whether they conflict or complement each other.