TOEFL Reading: Rhetorical Purpose Questions Questions and Answers 2

Question 1

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:

Accepted Answer

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

Answer

To explain why giraffes evolved in the African savanna

Answer

To argue that drought is the greatest threat to giraffe populations

Answer

To compare giraffes to other animals that evolved long necks

Question 2

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?

Accepted Answer

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

Answer

To prove that Einstein was a better scientist than his contemporaries

Answer

To provide a definition of beauty in the context of physics

Answer

To argue that Einstein's greatest contribution was philosophical rather than scientific

Question 3

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:

Accepted Answer

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

Answer

To argue that Arctic exploration should be halted

Answer

To compare Arctic melting rates with Antarctic melting rates

Answer

To explain the composition of permafrost in scientific detail

Question 4

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:

Accepted Answer

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

Answer

Contrast Roman engineering with Greek engineering specifically

Answer

Provide a historical chronology of bridge construction in Rome

Answer

Define the technical dimensions of Roman arches

Question 5

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:

Accepted Answer

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

Answer

To argue that all firms eventually fail due to poor decision-making

Answer

To provide statistics on how many businesses fail annually

Answer

To compare rational and irrational economic models

Question 6

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:

Accepted Answer

Provide quantitative evidence emphasizing the dramatic acceleration of coral reef deterioration

Answer

Establish the precise date when coral bleaching was first observed

Answer

Compare coral bleaching rates across different ocean basins

Answer

Argue that coral reefs will completely disappear by 2050