TOEFL Academic Vocabulary in Context 3 — Questions and Answers
Question 1: Read the sentence: "The researcher's findings were seminal in shaping modern theories of cognition." The word "seminal" is closest in meaning to:
- Controversial
- Influential and foundational (Correct answer)
- Preliminary
- Widely criticized
Correct answer: Influential and foundational
"Seminal" means highly influential and providing the basis for later development. In academic writing, a seminal work or finding is one that sets the groundwork for an entire field or line of inquiry.
Question 2: In the passage: "The government sought to ameliorate the conditions in overcrowded urban areas by investing in infrastructure." The word "ameliorate" means:
- Worsen
- Document
- Improve (Correct answer)
- Ignore
Correct answer: Improve
"Ameliorate" means to make something bad or unsatisfactory better. It is a formal academic word often used in social science and policy contexts to describe improvement of difficult conditions.
Question 3: The sentence reads: "Scientists posit that dark matter comprises the majority of the universe's mass." The word "posit" in this context means:
- Deny
- Assume or put forward as a fact (Correct answer)
- Measure accurately
- Disprove
Correct answer: Assume or put forward as a fact
"Posit" means to put forward a theory or idea as a basis for argument or discussion. It is commonly used in academic writing when a claim is presented as a working hypothesis rather than a confirmed fact.
Question 4: From a history lecture: "The treaty was an ephemeral solution that collapsed within a decade." The word "ephemeral" most nearly means:
- Lasting only a short time (Correct answer)
- Politically significant
- Economically costly
- Broadly supported
Correct answer: Lasting only a short time
"Ephemeral" describes something that lasts for only a very short time. In academic contexts it is used to contrast short-lived phenomena with more enduring ones, emphasizing the temporary nature of the subject.
Question 5: In a biology passage: "The enzyme acts as a catalyst, expediting the chemical reaction without being consumed." The word "expediting" means:
- Reversing
- Speeding up (Correct answer)
- Blocking
- Analyzing
Correct answer: Speeding up
"Expediting" means to make an action or process happen sooner or more quickly. In scientific writing it often describes how a substance or mechanism accelerates a process.
Question 6: The academic text states: "The proliferation of misinformation online has led to widespread public confusion." The word "proliferation" means:
- Suppression
- Rapid increase and spread (Correct answer)
- Verification
- Correction
Correct answer: Rapid increase and spread
"Proliferation" refers to a rapid increase in the number or amount of something. It is frequently used in academic and news contexts to describe the fast growth of technology, ideas, species, or problems.
TOEFL Academic Vocabulary in Context 3
Read the sentence: "The researcher's findings were seminal in shaping modern theories of cognition." The word "seminal" is closest in meaning to: