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SAT Reading & Writing: Hard Rhetorical Synthesis (Drill 25)

Drill 25 · Reading & Writing · Hard Rhetorical Synthesis

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About This Drill

SAT Reading & Writing: Hard Rhetorical Synthesis (Drill 25) is a Reading & Writing practice drill covering Hard Rhetorical Synthesis. It contains 5 original questions created by Brian Stewart, a Barron's test prep author with over 20 years of tutoring experience.

Hard Rhetorical Synthesis questions present a set of research notes and a specific writing goal, then ask you to choose the sentence that best accomplishes that goal using only the notes. The wrong answers are usually accurate statements that serve a different purpose than the one asked for, or that subtly misstate the notes. Match the rhetorical task exactly.

Questions & Explanations

Notes
While researching a topic, a student has taken the following notes: • Early high-speed trains in Japan produced a loud boom when they rushed out of tunnels, as compressed air burst from the far end. • An engineer assigned to the problem, who was also a birdwatcher, looked to nature for a shape that moved smoothly between fluids of different resistance. • He noted that a kingfisher dives from air into water to catch fish with barely a splash, owing to the long, tapering wedge of its beak. • The team reshaped the train's nose into a long beak-like wedge modeled on that profile. • The redesigned nose largely eliminated the tunnel boom and, unexpectedly, let the train run faster while using less power.

Question 1. The student wants to convey the engineer's goal in reshaping the train's nose. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  • A) The engineer assigned to the noise problem happened to be a birdwatcher who looked to nature for a solution.
  • B) A kingfisher can dive from the air into water after a fish with almost no splash, an ability owed to the long, tapering wedge of its beak that parts the water cleanly.
  • C) After the redesign, the train not only ran more quietly but also reached higher speeds while drawing less power.
  • D) The engineer reshaped the train's nose into a long, beak-like wedge in order to stop the loud boom the train made when it shot out of tunnels. ✓

Explanation: Choice D is the best answer. The sentence states the engineer's goal, ending the tunnel boom, and ties the new nose shape to it, stating the engineer's aim. Choice A notes that the engineer was a birdwatcher, background about him rather than his goal. Choice B explains the kingfisher's splashless dive, the inspiration rather than the engineering aim. Choice C reports the results of the redesign, what it achieved rather than what it set out to do.

Notes
While researching a topic, a student has taken the following notes: • Pattern-welded steel and crucible, or wootz, steel both show a flowing pattern in the finished blade, but the pattern arises in completely different ways. • Pattern-welded steel is made by forge-welding stacked layers of two different alloys, then folding and twisting the billet so the boundaries between layers show as a design. • Its pattern is therefore a record of mechanical layering: the visible lines mark where separate sheets of steel were joined. • Crucible steel instead begins as a single cake of high-carbon steel cooled slowly, so the pattern forms from bands of hard carbide crystallizing within one piece. • Its pattern is therefore internal: it comes from the steel's own structure, not from joining separate sheets.

Question 2. The student wants to convey how pattern-welded steel and crucible steel differ in how their patterns form. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  • A) Pattern-welded steel and crucible steel both display a flowing pattern in the finished blade.
  • B) Crucible steel begins as a single cake of high-carbon steel that is cooled slowly before being worked into a blade.
  • C) Pattern-welded steel takes its pattern from forge-welding separate alloy layers together, while crucible steel's pattern crystallizes as carbide bands within a single cake of steel. ✓
  • D) Pattern-welded steel takes its pattern from carbide bands forming within one cake of steel, while crucible steel's pattern comes from forge-welding separate alloy layers together.

Explanation: Choice C is the best answer. The sentence contrasts pattern-welded steel's joined layers with crucible steel's internal carbide banding, correctly assigning each origin, the difference the task asks for. Choice A states only that both show a pattern, the shared trait rather than the difference. Choice B describes crucible steel's starting cake alone, leaving the contrast and the other method unstated. Choice D names the right two mechanisms but swaps them, crediting pattern-welded steel with internal banding and crucible steel with welded layers, which the notes directly reverse.

Notes
While researching a topic, a student has taken the following notes: • Mead is an alcoholic drink made by fermenting honey dissolved in water, one of the oldest fermented beverages known. • Yeast consumes the sugars in the honey and converts them into alcohol, much as it does with grape sugars in wine. • The flavor depends heavily on the kind of honey used, since the nectar's plant source carries through into the finished drink. • Adding fruit, spices, or herbs before fermentation yields named variations with long traditions of their own. • Across many cultures, drinks based on fermented honey appear independently, suggesting the method was discovered in many places.

Question 3. The student wants to make a broad generalization about honey-based fermented drinks across cultures. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  • A) Mead's flavor depends heavily on the variety of honey used, because the nectar's plant source carries through the fermentation and into the taste of the finished drink.
  • B) Drinks made by fermenting honey appear independently across many cultures, suggesting the method was discovered in numerous places. ✓
  • C) Adding fruit, spices, or herbs to mead before fermentation produces named variations with long traditions of their own.
  • D) Mead is an alcoholic drink produced by fermenting honey dissolved in water, among the oldest such beverages known.

Explanation: Choice B is the best answer. The sentence makes the broad cross-cultural claim, that honey-based ferments arose independently in many places, the generalization the task asks for. Choice A explains in detail what shapes mead's flavor, a narrow point about one drink rather than a broad claim. Choice C covers how variations are made, a specific technique rather than a generalization. Choice D defines mead itself, a single-drink definition rather than a statement spanning cultures.

Notes
While researching a topic, a student has taken the following notes: • Adobe brick and fired brick are both shaped from clay, but they differ in whether heat is used and in how they hold up to water. • An adobe brick is simply molded from earth and straw and left to harden in the sun, never passing through a kiln. • Because it is only dried, an adobe brick can soften and erode if it is soaked, so it needs protection from steady rain. • A fired brick is baked in a kiln at high heat, a process that fuses the clay particles into a hard, durable body. • That firing makes the brick far more resistant to water, so it holds up under exposure that would wear adobe away.

Question 4. The student wants to convey how adobe brick and fired brick differ both in how they are made and in how they withstand water. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  • A) Adobe brick is only sun-dried and will soften if soaked, while fired brick is kiln-baked until its clay fuses, which makes it far better at resisting water. ✓
  • B) An adobe brick is molded from a mix of earth and straw and then left to harden in the sun, never passing through a kiln at any stage.
  • C) A fired brick is baked at high heat in a kiln, a process that fuses its clay particles into a hard and durable body.
  • D) Both adobe brick and fired brick are shaped from clay, though they are treated differently once they have been formed.

Explanation: Choice A is the best answer. The sentence contrasts sun-drying with kiln-firing and links that to the gap in water resistance, covering both bases of comparison the goal names. Choice B describes only how adobe is made, covering one brick and one of the two bases. Choice C describes only fired brick's making, again one side and silent on water resistance. Choice D notes that both are clay and treated differently without saying how, or addressing water at all.

Notes
While researching a topic, a student has taken the following notes: • Both certain fungi and the firefly produce light through the same basic chemistry, an enzyme acting on a compound called luciferin in the presence of oxygen. • In each case the reaction releases its energy almost entirely as light rather than heat, the hallmark of biological "cold light." • The glowing fungi behind the eerie light called foxfire emit a steady, continuous glow from their threadlike growth in decaying wood. • The firefly instead flashes on and off, controlling its light by regulating the oxygen supplied to the reaction. • The specific luciferin compound differs between the two, so the shared feature is the type of reaction, not the exact molecule.

Question 5. The student wants to convey what bioluminescent fungi and fireflies have in common. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  • A) The fungi behind foxfire give off a steady, continuous glow from their threadlike growth within decaying wood.
  • B) A firefly flashes on and off, controlling its light by regulating how much oxygen reaches the reaction.
  • C) The particular luciferin molecule is not the same in the fungi as in the firefly, so the two organisms differ in the exact light-producing compound each one uses.
  • D) Both bioluminescent fungi and fireflies make light by the same kind of reaction, an enzyme acting on luciferin with oxygen to release cold light. ✓

Explanation: Choice D is the best answer. The sentence names the shared kind of reaction: an enzyme acting on a luciferin compound with oxygen to produce cold light, which is the commonality the task asks for. Choice A describes the fungi's steady glow alone, a trait of one organism rather than a shared one. Choice B describes the firefly's flashing alone, again one side and in fact a point of difference. Choice C stresses how the two differ in their exact molecule, the opposite of what they share.