Function of a
Sentence or Paragraph

Learn to identify why the author included a specific sentence or paragraph: its rhetorical role within the larger passage.

GRE Verbal

What Is a Function Question?

On the GRE, "function" questions ask you to explain the purpose of a highlighted sentence or paragraph within a reading passage. They do not ask what a sentence says: they ask why the author included it.

Content vs. Function

Content (What it says)

The literal meaning of the sentence: the facts, claims, or descriptions it conveys.

Function (Why it's there)

The rhetorical role the sentence plays: does it introduce, support, qualify, transition, or conclude?

Why Function Questions Matter

Function questions test structural reading: the ability to understand how an argument is built, not just what it says. This skill is essential for the GRE because it separates surface comprehension from analytical reasoning.

Frequency

1 to 3 per verbal section: a reliable source of points.

Difficulty

Often medium to hard: wrong answers look plausible if you read only content.

Transferable

The same skill helps with critical reasoning and analytical writing tasks.

The Rhetorical Role Framework

Every sentence in a well-constructed passage serves one of a limited set of rhetorical roles. Identifying the role is the key to answering function questions correctly.

Six Core Functions in Detail

1

Introduce a claim or thesis. Sets up the author's main argument or the passage topic.

2

Provide evidence or support. Offers examples, data, or reasoning that backs up a claim.

3

Qualify or concede. Acknowledges a limitation, exception, or alternative perspective.

4

Counter or refute. Presents an opposing argument, then undermines it.

5

Transition. Signals a shift between ideas, topics, or sections of the argument.

6

Conclude or summarize. Restates the main point, draws an inference, or provides closure.

Function vs. Main Idea Questions

	Function Question	Main Idea Question
Asks about	The role of a specific part	The overall point of the passage
Scope	One sentence or paragraph	The entire passage
Answer focuses on	Why the author wrote it	What the author argues
Common trap	Restating content instead of role	Picking a detail, not the theme
Signal words	"serves to," "functions as," "in order to"	"primarily concerned with," "main point"

Signal Words That Reveal Function

Support

"For example," "Specifically," "Evidence suggests," "This is illustrated by"

Qualification

"However," "Although," "To be sure," "Admittedly," "Nevertheless"

Counter

"Critics argue," "Some contend," "On the contrary," "Yet this overlooks"

Transition

"Turning to," "In contrast," "A different aspect," "Moreover"

Step-by-Step Approach

1

Read the full passage first. You need the big picture before analyzing one piece.

2

Identify the main claim. What is the author's overall argument or thesis?

3

Locate the target sentence. Read the sentence before and after it for context.

4

Ask: "Why is this here?" Does it introduce, support, qualify, counter, transition, or conclude?

5

Match to the answer that describes the role, not the content. Eliminate answers that merely restate what the sentence says.

Worked Example: Identifying Support

The highlighted sentence provides specific data (a study, a number, a finding) to back up the preceding claim about green spaces and mental health.

Worked Example: Spotting a Qualification

The word "However" is the signal. The highlighted sentence acknowledges a limitation of the author's position. It does not abandon the argument: the next sentence ("Despite this challenge...") returns to the main claim.

Worked Example: Countering an Opponent

The highlighted sentence directly refutes the opposing view by presenting a counterexample. The signal phrase "Yet this view overlooks" marks it as a rebuttal.

Paragraph-Level Functions

Sometimes the GRE asks about the function of an entire paragraph, not just a sentence. The same framework applies, but at a broader scope.

The Deletion Test

A powerful technique for identifying function: mentally delete the target sentence and ask what would be missing from the passage.

1

Remove the sentence mentally. Read the passage as if it were not there.

2

Identify the gap. Does the argument now lack evidence? A transition? A counterpoint?

3

Name the gap. That gap is the sentence's function.

Common Mistakes

✕ Restating Content

Choosing an answer that describes what the sentence says rather than why it is included. Function answers use verbs like "illustrate," "qualify," "undermine."

✕ Ignoring Context

Reading the target sentence in isolation without considering the sentences before and after it. A sentence's role depends on its neighbors.

✕ Confusing Tone with Function

Choosing an answer because it matches the sentence's emotional tone (e.g., "critical") rather than its structural role (e.g., "to refute a claim").

Quick Reference Table

Function	What to Look For	Answer Language
Introduce	First sentence of passage or paragraph; broad claim	"presents," "introduces," "establishes"
Support	"For example," data, quotations, specifics	"illustrates," "provides evidence for," "supports"
Qualify	"However," "Although," "To be sure"	"qualifies," "acknowledges," "concedes"
Counter	"Critics argue," "Yet this overlooks"	"challenges," "refutes," "undermines"
Transition	"Turning to," "In contrast," shift in topic	"shifts focus to," "transitions between"
Conclude	Final sentence, "Therefore," "In sum"	"concludes," "summarizes," "draws an inference"

Question 1 of 5

"The prevailing theory attributes the extinction of the megafauna to climate change at the end of the Pleistocene. However, recent archaeological findings in Australia suggest that human hunting pressure preceded the major climate shifts by several thousand years. This timeline casts serious doubt on the climate-only hypothesis."

▼ Tap to read passage

The highlighted sentence primarily serves to:

The highlighted sentence introduces new archaeological evidence ("recent findings") that undermines the climate-only theory. The signal word "However" marks a shift from the established view to a challenge. It does not summarize, describe climate, or concede.

Question 2 of 5

"Digital literacy programs have been shown to improve student outcomes. For instance, a longitudinal study in Finland tracked 5,000 students over six years and found that those with structured coding instruction scored 15% higher on problem-solving assessments. These results suggest broad applicability."

▼ Tap to read passage

The highlighted sentence functions primarily to:

The phrase "For instance" signals that this sentence provides a concrete example. It offers specific data (Finland, 5,000 students, 15% improvement) that supports the general claim made in the first sentence. It does not qualify, introduce, or transition.

Question 3 of 5

"The new urban transit plan promises reduced commute times. To be sure, the plan's reliance on untested battery technology introduces significant implementation risk. Nevertheless, the potential benefits outweigh the uncertainties."

▼ Tap to read passage

The highlighted sentence serves which of the following functions?

"To be sure" is a classic concession signal. The author grants that a risk exists (battery technology) but does not abandon the argument: "Nevertheless" resumes support. This is a qualification, not a refutation, thesis, or summary of critics.

Question 4 of 5

A passage's second paragraph describes a scientist's experiments in detail after the first paragraph introduces her theory. What is the most likely function of the second paragraph?

When a paragraph introduces a theory and the next paragraph describes experiments, the second paragraph's function is almost always to provide supporting evidence. Experiments that test the theory serve to bolster the claim, not challenge or restate it.

Question 5 of 5

"The benefits of bilingual education are well-documented. Students in immersion programs show improved cognitive flexibility and higher standardized test scores. Turning now to the question of resource allocation, school districts must weigh these benefits against the substantial costs of hiring certified bilingual instructors. Budget constraints often determine whether a district can sustain such programs."

▼ Tap to read passage

The highlighted sentence primarily serves to:

"Turning now to" is a classic transition signal. The sentence shifts the passage's focus from the academic benefits of bilingual education to the practical and financial constraints of implementation. It neither supports, refutes, nor concedes: it bridges two topics.

Function of aSentence or Paragraph

What Is a Function Question?

Content vs. Function

Why Function Questions Matter

The Rhetorical Role Framework

Six Core Functions in Detail

Function vs. Main Idea Questions

Signal Words That Reveal Function

Step-by-Step Approach

Worked Example: Identifying Support

Worked Example: Spotting a Qualification

Worked Example: Countering an Opponent

Paragraph-Level Functions

The Deletion Test

Common Mistakes

Quick Reference Table

Question 1 of 5

Question 2 of 5

Question 3 of 5

Question 4 of 5

Question 5 of 5

Function of a
Sentence or Paragraph