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TOEFL Question of the Day

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10 September 2026 Share on X Share on LinkedIn
Subject: ListeningAcademic LecturesDetail — identifying a specific fact, definition, date, name, or example explicitly stated by the professor in a lecture
Question
Professor: "Good morning class. Today we're continuing our discussion on exoplanets, planets outside our solar system. For centuries, their existence was purely theoretical. It wasn't until the early 1990s that we had the first confirmed discovery. Specifically, in 1992, astronomers Aleksander Wolszczan and Dale Frail announced the detection of exoplanets orbiting a pulsar named PSR B1257+12. Now, it's important to differentiate this from the first exoplanet found orbiting a Sun-like star, which was 51 Pegasi b in 1995. But the 1992 discovery was groundbreaking because it offered the initial concrete evidence that planets could indeed exist beyond our Sun's gravitational influence, paving the way for the robust field of exoplanet research we see today. These initial findings fundamentally altered our understanding of planetary formation."

According to the professor, what significant event happened in 1992?

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Rationale:
The correct answer is "The first exoplanets orbiting a pulsar were confirmed." The professor explicitly states: "Specifically, in 1992, astronomers Aleksander Wolszczan and Dale Frail announced the detection of exoplanets orbiting a pulsar named PSR B1257+12." This directly answers the question about the significant event in 1992.

"The first exoplanet orbiting a Sun-like star was discovered" is incorrect because the professor clearly states this happened in 1995 with 51 Pegasi b, not in 1992. "PSR B1257+12 was identified as a new type of star" is incorrect. While PSR B1257+12 is a pulsar, the significant event in 1992 was the *discovery of planets orbiting it*, not the identification of the pulsar itself as a new type of star. The pulsar served as the host star for the discovered exoplanets. "Astronomers began to theorize about planets outside our solar system" is incorrect because the professor mentions that "For centuries, their existence was purely theoretical," indicating that theorizing began much earlier than 1992.

9 September 2026 Share on X Share on LinkedIn
Subject: ListeningAcademic LecturesUnderstanding the function of what is said — determining why the professor makes a specific statement, asks a question, or uses a particular example
Question
Professor: "Okay class, let's turn our attention to one of the foundational processes in ecology: ecological succession. This isn't just a fancy term; it's the sequence of changes in an ecological community over time, often following a disturbance or in newly formed habitats. For instance, imagine a barren landscape after a volcanic eruption, just raw volcanic rock. Or think of a forest cleared by a severe wildfire. In these scenarios, life doesn't just reappear; it reestablishes in a predictable order. Initially, hardy pioneer species like lichens and mosses colonize, slowly breaking down rock and forming rudimentary soil. As conditions improve, grasses and small shrubs take hold, followed by shade-intolerant trees. Eventually, if left undisturbed, the area develops into a stable, complex 'climax community' dominated by larger, shade-tolerant trees. Understanding these stages is crucial because it helps us predict ecosystem recovery and even manage conservation efforts effectively."

What is the main topic of the lecture?

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Rationale:
The professor explicitly introduces the topic by saying, "let's turn our attention to one of the foundational processes in ecology: ecological succession." The entire lecture then elaborates on what ecological succession is, how it occurs, and its various stages, using examples to illustrate the process. Therefore, the main topic is a comprehensive explanation of ecological succession.

Distractor 1 is incorrect because while volcanic eruptions and wildfires are used as examples of disturbances that initiate succession, they are not the main subject of the entire lecture. The lecture focuses on the *process* that follows such disturbances. Distractor 2 is incorrect because pioneer species are only one component, albeit an important one, of the overall process of ecological succession. The lecture covers the entire sequence of changes, not just the initial stage. Distractor 3 is incorrect because while the professor briefly mentions that understanding succession is crucial for predicting ecosystem recovery and managing conservation, this is stated as a consequence or application of understanding succession, not the primary focus or main topic of the lecture itself.

8 September 2026 Share on X Share on LinkedIn
Subject: ListeningAcademic LecturesGist-content — identifying the main topic or central subject of an academic lecture across a range of disciplines
Question
*Professor:* "Alright class, let's turn our attention today to the evolving landscape of work, specifically through the lens of automation. We've seen incredible advancements in artificial intelligence and robotics, fundamentally reshaping industries from manufacturing to services. Now, a common concern often raised is the widespread displacement of human workers. And while it's true that certain routine, predictable tasks are highly susceptible to automation, the economic impact is far more nuanced than a simple zero-sum game. Many economists argue that while automation eliminates some jobs, it simultaneously creates new roles and increases productivity, thereby fostering overall economic growth and new opportunities for skilled labor. This shift necessitates a focus on reskilling and education to prepare the workforce for these emerging positions rather than merely fearing job loss."

Which of the following best expresses the essential information in the highlighted sentence from the lecture?

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Rationale:

The statement "Economists believe automation generates economic growth and new skilled jobs, even as it causes some job losses" accurately summarizes the essential information from the highlighted sentence. The sentence explicitly states that while automation "eliminates some jobs," it also "creates new roles and increases productivity, thereby fostering overall economic growth and new opportunities for skilled labor." The option suggesting that "The primary effect of automation, according to economists, is the displacement of human workers across most sectors" is incorrect because the highlighted text emphasizes a more nuanced economic impact, not solely job displacement. Similarly, the choice claiming "Automation's main benefit is increased productivity, but it does not lead to the creation of entirely new types of jobs" directly contradicts the mention of "creates new roles" and "new opportunities for skilled labor." Lastly, the answer asserting that "Economists contend that automation will primarily impact only routine tasks, leaving complex jobs largely untouched" misrepresents the focus of the highlighted sentence, which is on broader economic growth and job creation, not just the scope of tasks affected.

7 September 2026 Share on X Share on LinkedIn
Subject: ReadingAcademic Passage ComprehensionVocabulary in context — selecting the correct meaning of an underlined word or phrase as it is used in an academic passage
Question
Professor Evans began the lecture by reminding students about the upcoming term paper. "I know many of you are working hard on your research," she said. "Please remember the submission deadline is next Friday at 5 PM. While extensions are rarely granted, if you encounter extraordinary circumstances?such as a documented medical emergency?you must contact me immediately with supporting documentation. The department policy is very strict on this. Regarding academic integrity, I want to emphasize that all research must be your original work, and any sources used must be cited according to APA guidelines. It's imperative that students understand and adhere to these standards. I must stipulate that any instance of plagiarism, intentional or unintentional, will result in a failing grade for the assignment and will be reported to the academic disciplinary committee."

The word "stipulate" in the passage is closest in meaning to

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Rationale:
The word "stipulate" in the passage is used in the context of the professor setting a clear, formal rule or condition regarding academic integrity. When she says, "I must stipulate that any instance of plagiarism... will result in a failing grade," she is not merely suggesting, predicting, or reviewing. She is explicitly stating a non-negotiable requirement and its consequence. Therefore, to "demand as a condition" accurately captures this meaning of setting a requirement that must be met or a consequence that will follow.

"Predict with certainty" is incorrect because the professor is not foretelling an event; she is declaring a policy and its outcome. While the result (failing grade) is certain if the condition (plagiarism) occurs, the act of 'stipulating' is about setting the condition itself. "Suggest as an option" is wrong because the professor's statement is a firm rule, not a flexible suggestion. Academic policies, especially concerning plagiarism, are typically mandatory. "Review in detail" is also incorrect because 'stipulate' means to state a requirement, not to examine or explain something thoroughly. While the professor's statement is detailed, the specific action of 'stipulating' is about laying down the rule.

6 September 2026 Share on X Share on LinkedIn
Subject: SpeakingListen and Repeat (2026 New Task)Accurately repeating a complex academic sentence — reproducing a multi-clause academic sentence with correct stress, intonation, and pronunciation after a single listen
Question
You will hear a sentence. Please repeat the sentence exactly as you hear it.

You will hear: "The advent of CRISPR-Cas9 technology, profoundly revolutionizing gene editing, presents both unparalleled opportunities for treating genetic disorders and complex ethical dilemmas concerning germline modification."

Select an Answer
Rationale:
The correct response, options[0], is an exact, word-for-word reproduction of the original academic sentence. For the Listen and Repeat task, successful performance requires precise replication of all lexical items, grammatical structures, and the overall academic register, including specialized terminology like 'CRISPR-Cas9 technology,' 'profoundly revolutionizing,' 'unparalleled opportunities,' and 'germline modification.'

Options[1] is incorrect because it simplifies the original sentence by omitting key adverbs and adjectives such as 'profoundly' and 'unparalleled,' and replaces 'complex ethical dilemmas' with 'ethical dilemmas' and 'germline modification' with the less precise 'modifying genes.' This simplification diminishes the academic rigor and specific details of the original statement. Options[2] is incorrect as it involves extensive lexical substitution, replacing several academic terms with simpler synonyms (e.g., 'advent' with 'arrival,' 'profoundly revolutionizing' with 'which changes,' 'unparalleled opportunities' with 'many chances,' 'complex ethical dilemmas' with 'big ethical problems,' and 'germline modification' with 'gene alteration'). Such widespread substitution fundamentally alters the original meaning and tone. Options[3] is incorrect due to a grammatical error: the redundant inclusion of 'it' after the initial subject phrase ('The advent of CRISPR-Cas9 technology, profoundly revolutionizing gene editing') creates an ungrammatical structure, commonly known as a pleonastic pronoun error, which deviates from the original grammatically correct sentence.