TOEFL Practice Test #8 2 — Questions and Answers
Question 1: A TOEFL Reading passage on climate science states: "Feedback loops—both positive and negative—play a crucial role in regulating Earth's temperature." In this context, a "positive feedback loop" means:
- A beneficial change that improves environmental conditions
- A process in which an initial change amplifies further change in the same direction (Correct answer)
- A scientific model that produces optimistic predictions
- A feedback mechanism that stabilizes temperature at a constant level
Correct answer: A process in which an initial change amplifies further change in the same direction
In systems science and climate science, "positive" in "positive feedback loop" does not mean beneficial—it means self-amplifying. The initial change (e.g., warming melts ice) produces an effect (less reflective surface) that causes more of the initial change (more warming), creating a cycle of amplification.
Question 2: In a TOEFL Listening lecture on sociology, a professor discusses Émile Durkheim's concept of "anomie"—a condition of social normlessness that leads to disorientation and deviance. The professor says students often confuse anomie with alienation. What type of question would this generate?
- A factual question about Durkheim's biography
- A connecting content question asking how anomie and alienation differ (Correct answer)
- An attitude question about whether the professor prefers anomie or alienation as a concept
- A gist question about the professor's overall research focus
Correct answer: A connecting content question asking how anomie and alienation differ
When a lecture explicitly contrasts two concepts, it typically generates a connecting content or comparison question asking how the two differ or relate. The professor's signal ("students often confuse") is a classic cue that the distinction is important and testable.
Question 3: A TOEFL Reading passage on economics discusses market failures. The passage uses the word "externality" in the sentence: "Pollution represents a negative externality because its costs are borne by society rather than by the producing firm." From context, "externality" means:
- An internal company expense passed to employees
- A cost or benefit that affects parties not directly involved in an economic transaction (Correct answer)
- A government regulation on business activities
- A profit earned by firms through socially beneficial production
Correct answer: A cost or benefit that affects parties not directly involved in an economic transaction
"Externality" is an economics term for costs or benefits that fall on third parties not involved in the transaction. The passage context—"costs are borne by society rather than the firm"—confirms that an externality shifts consequences to outside parties.
Question 4: In a TOEFL Academic Discussion Writing task, a professor asks students to discuss whether space exploration should be funded by governments or private companies. A student's response begins: "While governments have traditionally led space exploration, private companies like SpaceX demonstrate that commercial investment can accelerate innovation more efficiently." This response:
- Fails to take a clear position
- Takes a clear position with a specific supporting reason (Correct answer)
- Is too short to be evaluated
- Contains a grammatical error that affects the score
Correct answer: Takes a clear position with a specific supporting reason
The response takes a clear stance (private companies are more effective), acknowledges the traditional government role (showing awareness of the debate), and provides a specific reason (accelerates innovation more efficiently). This structure earns credit for opinion clarity and reasoning.
Question 5: A TOEFL Reading passage on human evolution discusses bipedalism. Which question type asks: "Why does the author discuss the development of the Achilles tendon in paragraph 4?"
- Factual Information question
- Inference question
- Rhetorical Purpose question (Correct answer)
- Vocabulary question
Correct answer: Rhetorical Purpose question
Questions asking "Why does the author discuss/mention X?" are Rhetorical Purpose questions. They require the student to understand not just what is said but why—what role the mentioned information plays in the author's overall argument or explanation.
Question 6: A TOEFL Reading passage uses the phrase "conversely" at the start of a sentence. This transition word signals that:
- The following sentence provides an example of the previous point.
- The following sentence introduces a time sequence.
- The following sentence presents an opposite or contrasting idea. (Correct answer)
- The following sentence summarizes the paragraph's main argument.
Correct answer: The following sentence presents an opposite or contrasting idea.
"Conversely" is a contrast transition meaning "on the other hand" or "in the opposite way." It signals that the sentence it introduces presents an idea that contrasts with or reverses the direction of the preceding statement.
TOEFL Practice Test #8 2
A TOEFL Reading passage on climate science states: "Feedback loops—both positive and negative—play a crucial role in regulating Earth's temperature." In this context, a "positive feedback loop" means: