TOEFL Reading Comprehension | Section 3 Test Practice 01 with Answers

This is a longer, original TOEFL-style reading practice set with three academic passages and 24 multiple-choice questions, not reproduced from any official test. Answer each passage's questions before you check the key at the end; about 1.5 minutes per question is a reasonable pace. For shorter timed sets, see the Reading practice set or more reading practice articles.

Passage 1: Bioluminescence in the Deep Sea

[1] Below about two hundred meters, sunlight fades quickly, and by one thousand meters the ocean is permanently dark. Yet this dark zone is far from lifeless, and many of the organisms that live there produce their own light through a chemical process called bioluminescence. Unlike an ordinary incandescent lightbulb, which gives off much of its energy as heat, bioluminescence is produced by a chemical reaction between a light-emitting molecule and an enzyme, and very little of the energy released is lost as heat.

[2] Bioluminescence serves several distinct purposes depending on the species that produces it. Some fish use light-producing organs positioned along the belly to counter-illuminate: by matching the faint light filtering down from above, these fish cancel out the shadow their bodies would otherwise cast, making them harder for predators below to detect. Other species use bright, sudden flashes defensively, startling a predator or briefly illuminating the predator itself, which can attract the attention of an even larger predator nearby. Still others use bioluminescence to attract prey, most famously the anglerfish, which dangles a glowing lure in front of its mouth to draw curious smaller animals within striking distance.

[3] Light may also serve as a means of communication. In the darkness of the deep sea, where one animal cannot recognize another by ordinary sight, certain species of squid and small crustaceans produce distinct flashing patterns that appear to function as species-specific signals, potentially helping individuals identify mates or rivals. Deep-sea animals also rely on chemical and acoustic cues, so light is probably only one of several ways they communicate.

[4] Because so much of the deep sea remains difficult and expensive to observe directly, researchers still have only a partial picture of how widespread and varied bioluminescent behavior is. Remotely operated vehicles and specialized cameras sensitive to low light levels have allowed scientists to document many previously unrecorded light displays, suggesting that the true diversity of bioluminescent communication and signaling in the deep ocean is considerably larger than what has been formally cataloged so far.

Questions 1–8

1. What does Passage 1 mainly discuss?

• (A) The chemical formula of bioluminescent enzymes
• (B) The development of deep-sea cameras
• (C) The different functions bioluminescence serves for deep-sea organisms
• (D) Why sunlight cannot reach the ocean floor

2. The term "counter-illuminate" in paragraph 2 refers to a strategy in which a fish

• (A) produces light to cancel out the shadow cast by its own body
• (B) attracts prey with a glowing lure
• (C) flashes brightly to startle predators
• (D) communicates with other fish using light patterns

3. According to paragraph 2, how does the anglerfish use bioluminescence?

• (A) To cancel out its own shadow
• (B) To startle approaching predators
• (C) To signal to potential mates
• (D) To draw prey close with a glowing lure

4. The word "acoustic" in paragraph 3 is closest in meaning to

• (A) visual
• (B) chemical
• (C) sound-based
• (D) electrical

5. According to paragraph 3, the flashing patterns produced by some squid and small crustaceans may help them

• (A) keep their bodies warm
• (B) identify potential mates or rivals
• (C) find their way to the surface
• (D) hide their shadows from predators

6. According to the passage, deep-sea organisms use bioluminescence for all of the following EXCEPT

• (A) hiding from predators below them
• (B) generating heat to survive cold water
• (C) attracting prey
• (D) possible communication between individuals

7. It can be inferred from paragraph 4 that scientists' current understanding of deep-sea bioluminescence is

• (A) complete and unlikely to change
• (B) based entirely on laboratory experiments
• (C) more advanced than their understanding of shallow-water life
• (D) probably incomplete, given how hard the deep sea is to observe

8. Why does the author mention remotely operated vehicles and low-light cameras in paragraph 4?

• (A) To explain how researchers have been able to record light displays that had not been documented before
• (B) To describe how deep-sea creatures are captured for study
• (C) To argue that deep-sea research is too expensive to continue
• (D) To compare underwater vehicles with satellites

Passage 2: The Hanseatic League and Baltic Trade

[1] From roughly the thirteenth to the seventeenth century, a loose alliance of merchant associations and trading towns known as the Hanseatic League dominated trade across the North Sea and Baltic Sea regions of northern Europe. Centered on the German city of Lübeck, the League eventually included well over one hundred towns at its height, and its trading network stretched from Novgorod in the east to London in the west, though its membership and influence shifted considerably over time.

[2] The League's primary purpose was to protect and expand the commercial interests of its member merchants. Individual traders faced significant risks when operating far from home: local rulers might impose unpredictable taxes, pirates threatened shipping routes, and merchants had little legal standing in foreign ports without some form of collective backing. By banding together, Hanseatic merchants could negotiate trading privileges and legal protections as a group, establish self-governing trading posts called kontors in foreign cities, and coordinate naval action against piracy along key shipping lanes.

[3] Goods moved through the Hanseatic network in both directions. Raw materials such as furs, timber, grain, and wax flowed westward from towns along the Baltic coast and further east, while manufactured goods, particularly cloth from Flanders and England, moved in the opposite direction. Herring, salted for preservation, became one of the League's most valuable commodities, supplying a reliable source of protein to much of northern Europe, particularly during periods when religious practice restricted the consumption of meat.

[4] The League's influence gradually declined from the sixteenth century onward. Rising nation-states began asserting stronger direct control over trade within their own borders, reducing the need for merchant associations to negotiate on individual traders' behalf. Competition from other trading powers, along with shifting trade routes following the expansion of Atlantic and colonial commerce, further eroded the League's economic position. Although it never formally dissolved through a single decisive event, by the seventeenth century the Hanseatic League had lost most of the influence it once held over northern European trade.

Questions 9–16

9. What does Passage 2 mainly discuss?

• (A) The military conquests of the city of Lübeck
• (B) The invention of herring preservation techniques
• (C) A comparison between Flemish and English cloth production
• (D) The purpose, trade, and eventual decline of the Hanseatic League

10. The phrase "banding together" in paragraph 2 is closest in meaning to

• (A) competing with each other
• (B) trading secretly
• (C) joining as a group
• (D) borrowing money

11. According to paragraph 2, how did individual merchants benefit from the Hanseatic League?

• (A) They could negotiate privileges and protections as a group, set up trading posts abroad, and coordinate action against pirates.
• (B) They received ships from the League free of charge.
• (C) They were exempted from all foreign taxes.
• (D) They no longer needed to travel to trade.

12. The word "kontors" in paragraph 2 refers to

• (A) a type of ship used by the League
• (B) self-governing trading posts in foreign cities
• (C) a form of currency
• (D) laws governing trade

13. According to paragraph 3, why did herring become one of the League's most valuable commodities?

• (A) It could be transported without being preserved.
• (B) It was the only food traded within the League.
• (C) It provided a reliable source of protein, especially when religious practice restricted eating meat.
• (D) It was used mainly in shipbuilding.

14. According to paragraph 4, all of the following contributed to the League's decline EXCEPT

• (A) nation-states taking stronger control of trade within their borders
• (B) a single naval defeat that destroyed the League's fleet
• (C) competition from other trading powers
• (D) new trade routes linked to Atlantic and colonial commerce

15. It can be inferred from paragraph 1 that the Hanseatic League's membership

• (A) stayed exactly the same throughout its history
• (B) was limited to towns in Germany
• (C) never exceeded ten towns
• (D) changed over time rather than staying fixed

16. Why does the author mention that goods moved "in both directions" in paragraph 3?

• (A) To argue that trade was unprofitable for most merchants
• (B) To describe how ships were built
• (C) To show that the network connected regions that exchanged different kinds of goods
• (D) To compare the League with modern shipping companies

Passage 3: The Baroque Concerto and the Rise of the Solo Virtuoso

[1] During the Baroque era, roughly 1600 to 1750, European composers developed the concerto, a musical form built around contrast between a smaller group of instruments, or a single instrument, and a larger ensemble. This structure allowed composers to explore dramatic exchanges between individual and collective sound in ways that earlier, more uniformly textured music had not emphasized.

[2] Two related but distinct types of concerto emerged during this period. The concerto grosso set a small group of soloists against the full ensemble, trading musical material back and forth between the two groups within a single movement. The solo concerto, which gained particular popularity later in the Baroque period, instead featured a single instrument, often a violin, in direct dialogue with the larger ensemble, giving that one performer sustained prominence throughout the piece rather than sharing the spotlight with other soloists.

[3] The rise of the solo concerto coincided with, and likely encouraged, rapid advances in instrumental technique. Composers increasingly wrote passages that demanded exceptional speed, wide leaps between high and low notes, and rapid shifts in bowing or fingering, technical challenges intended partly to showcase a performer's skill to an audience that had come to expect displays of virtuosity alongside musical substance. This shift gave individual performers a new kind of prominence: a skilled soloist could now build a reputation based partly on technical mastery that would have had little outlet in earlier ensemble-based forms.

[4] The concerto's three-movement structure, typically alternating a fast opening movement, a slower and more expressive middle movement, and a fast closing movement, became a standard framework that later composers continued to use and adapt long after the Baroque period ended. Even as musical styles shifted toward the Classical and Romantic periods, the basic principle established in the Baroque concerto, built around contrast between soloist and ensemble, remained a durable structural tool.

Questions 17–24

17. What does Passage 3 mainly discuss?

• (A) The development of the concerto and its role in the rise of the solo virtuoso
• (B) The life of a single Baroque composer
• (C) The invention of the violin
• (D) Differences between vocal and instrumental Baroque music

18. According to paragraph 2, how does a concerto grosso differ from a solo concerto?

• (A) A concerto grosso has no soloists at all.
• (B) A concerto grosso is always slower than a solo concerto.
• (C) The concerto grosso was invented after the solo concerto.
• (D) A concerto grosso sets a small group of soloists against the ensemble, while a solo concerto features one instrument.

19. The phrase "coincided with" in paragraph 3 is closest in meaning to

• (A) caused the destruction of
• (B) contradicted
• (C) happened at the same time as
• (D) was unrelated to

20. The word "virtuosity" in paragraph 3 is closest in meaning to

• (A) simplicity
• (B) exceptional technical skill
• (C) emotional expression
• (D) group cooperation

21. According to paragraph 3, what did composers increasingly write into solo concertos?

• (A) Passages that demanded great speed, wide leaps, and rapid shifts in bowing or fingering
• (B) Simple, repetitive melodies
• (C) Long silences between movements
• (D) Lyrics for a solo singer

22. Why does the author mention that a skilled soloist "could now build a reputation based partly on technical mastery" in paragraph 3?

• (A) To argue that ensemble music became less important
• (B) To describe how orchestras were funded
• (C) To illustrate the new kind of prominence the solo concerto gave individual performers
• (D) To compare Baroque and modern concert halls

23. According to paragraph 4, the standard three-movement structure of the concerto typically

• (A) consisted of movements of equal tempo
• (B) followed a fast–slow–fast pattern
• (C) ended with a slow movement
• (D) had no fixed order

24. It can be inferred from paragraph 4 that the contrast between soloist and ensemble established in the Baroque concerto

• (A) disappeared after the Baroque period
• (B) was rejected by Classical and Romantic composers
• (C) applied only to vocal music
• (D) continued to be used by composers in later periods

Answers and explanations

Passage 1

1. (C) Paragraphs 2–3 describe camouflage, defense, hunting, and possible communication, and paragraph 4 notes that more uses are still being found.
2. (A) Counter-illumination means producing light that matches the light from above, which cancels out the fish's own shadow.
3. (D) Paragraph 2 says the anglerfish "dangles a glowing lure in front of its mouth" to draw prey within reach.
4. (C) "Acoustic" means related to sound.
5. (B) Paragraph 3 says the flashing patterns may help individuals "identify mates or rivals."
6. (B) Paragraph 1 stresses that very little of the energy is lost as heat. Camouflage, hunting, and communication are all described.
7. (D) Paragraph 4 says researchers "still have only a partial picture" because the deep sea is hard to observe.
8. (A) These tools are named as the means by which scientists have documented "many previously unrecorded light displays."

Passage 2

9. (D) The passage covers the League's purpose (paragraph 2), its trade (paragraph 3), and its decline (paragraph 4).
10. (C) "Banding together" means joining as a group.
11. (A) Paragraph 2 lists collective negotiation of privileges and protections, trading posts called kontors, and coordinated naval action against piracy.
12. (B) Paragraph 2 describes kontors as trading posts the League established in foreign cities.
13. (C) Paragraph 3 says herring supplied reliable protein, especially "when religious practice restricted the consumption of meat."
14. (B) Paragraph 4 names nation-states, competition, and shifting trade routes, and says the League "never formally dissolved through a single decisive event."
15. (D) Paragraph 1 states that membership and influence "shifted considerably over time."
16. (C) Raw materials moved west while manufactured cloth moved east, showing how the network linked regions with different goods to exchange.

Passage 3

17. (A) The passage traces the concerto's development and its connection to growing instrumental virtuosity.
18. (D) Paragraph 2 contrasts a small group of soloists against the ensemble (concerto grosso) with a single featured instrument (solo concerto).
19. (C) "Coincided with" means happened at the same time as.
20. (B) "Virtuosity" means exceptional technical skill.
21. (A) Paragraph 3 describes passages demanding "exceptional speed, wide leaps between high and low notes, and rapid shifts in bowing or fingering."
22. (C) The phrase illustrates the "new kind of prominence" that the solo concerto gave individual performers.
23. (B) Paragraph 4 describes a fast opening movement, a slower middle movement, and a fast closing movement.
24. (D) Paragraph 4 says the soloist–ensemble contrast "remained a durable structural tool" as styles moved into the Classical and Romantic periods.