Nelson-Denny Reading Test Reading Comprehension: Identifying Main Ideas 5

Question 1

A passage reads: 'The Renaissance was not simply an artistic movement — it was a fundamental shift in how Europeans understood humanity, science, and their place in the universe.' Where is the main idea located in this passage?

Accepted Answer

It is stated in this opening sentence.

Answer

This sentence directly states the central claim about the Renaissance as a broad intellectual shift, making it an explicit topic sentence.

Question 2

A passage describes how a single species of fungus can decompose fallen trees, recycle nutrients into soil, and form symbiotic relationships with plant roots. What is the main idea?

Accepted Answer

This fungus species plays multiple critical roles in forest health.

Answer

The passage highlights several roles the fungus plays, and the main idea unifies them as collectively critical to the forest.

Question 3

A test-taker reads a passage and selects the answer 'The author believes technology has changed society.' A classmate says this answer is too vague. Who is correct, and why?

Accepted Answer

The classmate is correct; the main idea should be specific enough to distinguish this passage from any other passage about technology.

Answer

A valid main idea must be specific enough to capture what this particular passage argues, not just a generic topic statement.

Question 4

A passage about the Moon covers its formation from a planetary collision, its effect on Earth's tides, its role in stabilizing Earth's axial tilt, and the history of lunar exploration. The main idea is best stated as:

Accepted Answer

The Moon has profoundly shaped Earth's physical environment and human history.

Answer

Only option C encompasses all four topics — formation, tidal effects, axial stability, and exploration — under one unifying idea.

Question 5

After reading a long passage, you notice that paragraphs 1, 3, and 5 all support the same point, while paragraph 2 provides a counterargument. The main idea of the passage is most likely:

Accepted Answer

The point supported by paragraphs 1, 3, and 5, with paragraph 2 as a concession.

Answer

The main idea is the point that receives the most development; a single counterargument paragraph is a concession, not the central claim.

Nelson-Denny Reading Test Practice Test

Nelson-Denny Reading Test Practice Test

Nelson-Denny Reading Test Reading Comprehension: Identifying Main Ideas 5