TOEFL Reading: Rhetorical Purpose Questions Questions and Answers 2 Flashcards

A TOEFL Reading passage on evolutionary biology mentions a study showing that giraffes with longer necks survived droughts better than short-necked individuals. The question asks: "Why does the author mention this study?" The correct answer would be:

Answer: To illustrate how natural selection favored a specific physical trait under environmental pressure

Rhetorical Purpose questions ask why the author includes specific information. The study about neck length and drought survival serves as evidence illustrating natural selection—it shows, with a concrete example, how environmental pressure selects for advantageous traits. The purpose is illustration and support of the theory.

A passage on physics begins a paragraph by quoting Einstein: "The most beautiful thing we can experience is the mysterious." The author then discusses how curiosity drives scientific discovery. Why does the author begin with this quote?

Answer: To establish a relevant, authoritative framing for the paragraph's argument about curiosity in science

Opening a paragraph or section with a relevant quote from an authority figure serves to establish the credibility and relevance of the upcoming argument. The Einstein quote introduces the theme of curiosity and wonder, framing the paragraph's discussion of intellectual curiosity as a driver of science.

In a TOEFL Reading passage about climate change, paragraph 4 describes the rapid melting of Arctic permafrost. The question asks: "Why does the author describe Arctic permafrost melting in paragraph 4?" The answer is:

Answer: To provide a specific, concrete example of how climate change accelerates through positive feedback loops

Permafrost melting is cited as a concrete illustration of a larger mechanism (positive feedback loops in climate change). The rhetorical purpose is to give readers a specific, real-world example that makes the abstract concept of feedback loops tangible and compelling.

A passage about ancient Roman architecture explains the structural principle of the arch, then states: "This innovation allowed Roman engineers to construct bridges spanning rivers that previous civilizations could not cross." The rhetorical purpose of this sentence is to:

Answer: Demonstrate the practical significance of the arch by showing how it enabled something previously impossible

After explaining the technical principle (arch structure), the author demonstrates its real-world significance by showing what it enabled that was previously impossible. This "so what?" sentence makes the technological innovation meaningful to the reader by connecting it to practical, historical consequence.

In a passage about economics, the author presents the example of a firm that continued producing at a loss because managers focused on "sunk costs"—money already spent that cannot be recovered. The rhetorical purpose of this example is:

Answer: To illustrate the concept of the sunk cost fallacy with a concrete business scenario

The example of the loss-making firm illustrates the "sunk cost fallacy" in a business context. The rhetorical purpose is to make an abstract economic decision-making error concrete and recognizable, helping the reader understand the concept through a real scenario.

A TOEFL Reading passage on environmental science mentions that coral bleaching events have increased five-fold since 1985. The rhetorical purpose of this statistic is most likely to:

Answer: Provide quantitative evidence emphasizing the dramatic acceleration of coral reef deterioration

Statistics in academic writing serve as quantitative evidence. "Five-fold increase since 1985" provides a measurable, dramatic indicator of acceleration that strengthens the author's argument about the severity of coral reef deterioration far more effectively than a vague qualitative statement would.