TOEFL Listening Mock Test 8

NARRATOR: Listen to a conversation between a student and a professor. STUDENT: Hi, Professor. Thanks for meeting with me today during your office hours. I really appreciate your time. PROFESSOR: Of course, Aisha. How can I help you with your Environmental Studies course? STUDENT: Well, I am working on the research proposal draft. It is due soon, but, uh, I am having a really hard time with the topic. I wanted to write about solar energy in cities, but when I started reading, I realized there is just too much information out there. PROFESSOR: Ah, yes. Solar energy in urban areas is a huge subject. Remember, this proposal has a strict limit. It can only be three pages long. If your topic is too broad, you simply cannot cover it well in three pages. STUDENT: Right, three pages is not very long. I was afraid I would write too much and go over the limit. So, how can I make it smaller... I mean, narrower? PROFESSOR: Well, you should focus on a specific, local project. For example, did you know our campus library recently installed solar panels on its roof? It is part of the new university green roof initiative. STUDENT: Oh, really? I did not know that! I study in that library almost every day, but I never noticed. PROFESSOR: Yes, it was finished just last month. You could write your proposal about measuring the energy savings of the library's solar panels over the next academic year. STUDENT: That is a great idea! It is very specific, and I can easily write a three-page proposal about that. It makes the project feel much more real. PROFESSOR: I agree. It is much easier to write a proposal when you have a concrete example. Now, remember the deadline. The online submission portal closes this Friday at five p.m. Exactly five p.m. Late submissions lose points automatically. STUDENT: I understand. Friday at five p.m. is the hard deadline. I will focus my draft on the library solar project and submit it online on time. Thank you so much for your help! PROFESSOR: You are very welcome, Aisha. I look forward to reading your proposal. [Q1] Why does the student go to see the professor?

(Shared with Q1.) [Q2] According to the professor, what is a strict requirement for the research proposal?

(Shared with Q1.) [Q3] What local project does the professor suggest the student write about?

(Shared with Q1.) [Q4] What can be inferred about the student's preparation before the meeting?

(Shared with Q1.) [Replay: "Oh, really? I did not know that! I study in that library almost every day, but I never noticed."] [Q5] Why does the student say this:

NARRATOR: Listen to part of a lecture in a biology class. PROFESSOR: Okay, everyone, let's get started. In our last session on plant ecology, we discussed how plants utilize abiotic factors like wind and water to disperse their seeds. Today, we're going to focus on a fascinating biotic partnership, specifically, seed dispersal by ants. This symbiotic relationship is known as myrmecochory—which simply means seed dispersal facilitated by ants. PROFESSOR: Now, why would a plant rely on ants? Well, plants have evolved a clever incentive to recruit these tiny helpers: a specialized structure called an elaiosome. An elaiosome is a fleshy, nutrient-rich appendage attached to the outside of the seed. Actually, let me rephrase that—it's not just fatty; it's a precise mixture of lipids, proteins, and essential vitamins that represents a significant energy investment for the plant. PROFESSOR: When an ant encounters one of these seeds, it doesn't eat the seed itself. Instead, it grips the elaiosome with its mandibles and carries the entire package back to its underground colony. Once inside, the ants feed the nutritious elaiosome to their developing larvae. The seed itself, which is tough and undamaged, is then discarded. But here is the brilliant part: the ants don't just throw it outside. They discard it in their nest's refuse chamber—basically, the colony's underground garbage dump. STUDENT: Excuse me, Professor? Why is being thrown into an ant garbage dump a good thing for a plant? It sounds... well, a bit counterproductive if the seed wants to grow. PROFESSOR: Ah, great question, Lukas. It might sound unappealing to us, but think about what a colony's refuse chamber contains. It's packed with decomposed organic waste, dead insects, and soil rich in nitrogen and phosphorus. In other words, it is an extremely high-quality fertilizer! By being 'thrown away' there, the seed is essentially planted in nutrient-dense, moist soil, protected from seed-eating birds and rodents, and even shielded from surface wildfires. It's the ultimate subterranean nursery. PROFESSOR: But how do plants ensure that only ants—and not, say, larger seed-eating insects or birds—find these seeds first? This is where chemical mimicry comes in. Chemical mimicry is when an organism produces chemical compounds that copy the scent of another organism to influence its behavior. The elaiosomes release specific fatty acids, like oleic acid. To an ant, oleic acid is the exact chemical signature of a dead insect, which is their primary food source. This chemical trick triggers the ant's hardwired retrieval behavior. A beetle might just ignore the seed, but to an ant, it's an irresistible call to bring the item home. So, the plant exploits the ant's natural foraging instincts to secure safe transport for its offspring. [Q6] What is the lecture mainly about?

(Shared with Q6.) [Q7] According to the professor, what is an elaiosome?

(Shared with Q6.) [Q8] According to the professor, what are two benefits that seeds gain from being discarded in an ant colony's refuse chamber? Choose 2 answers.

(Shared with Q6.) [Q9] Why does the professor mention oleic acid?

(Shared with Q6.) [Q10] According to the lecture, how do ants respond to the chemical compounds released by elaiosomes?

(Shared with Q6.) [Replay: "Actually, let me rephrase that—it's not just fatty; it's a precise mixture of lipids, proteins, and essential vitamins that represents a significant energy investment for the plant."] [Q11] Why does the speaker say this:

NARRATOR: Listen to a conversation between a student and a registrar's office administrator. STUDENT: Hi there. I'm hoping you can help me with a credit transfer issue. I did a summer study abroad program in Spain, at the University of Salamanca, and I need to get those credits applied to my degree here before, you know, my graduation audit next semester. I want to make sure I'm fully on track to graduate in the spring. STAFF: Sure, I can help with that. Did you already fill out the external transfer credit petition? STUDENT: Yes, I have the form right here. But my problem is with the official transcript from Salamanca. The program coordinator there told me they sent it out last week, but it hasn't arrived in your system yet. And I know the absolute deadline to submit everything to avoid the late processing fee is October fifteenth. STAFF: Ah, yes. The fifteen-day grace period after the start of the semester ends on October fifteenth. If the official transcript isn't on file by then, there is a fifty-dollar late fee to process external credits. Let me check our database to see if it's pending in our digital mailroom... No, nothing has shown up under your student ID yet. STUDENT: Oh, that's what I feared. Mail from overseas can take forever. I mean, I did my part and requested it weeks ago. It feels a bit unfair to be charged fifty dollars just because of international shipping delays. STAFF: I completely understand. It's a common issue with summer programs. Fortunately, there is a workaround. We have a form called the 'Pending Transcript Waiver.' Have you heard of it? STUDENT: No, I haven't. What does that do? STAFF: Essentially, it's a placeholder. You submit the Waiver form along with your transfer petition before the October fifteenth deadline. It officially logs your intent to transfer the credits on time. Once we receive that waiver, we waive—well, we put a hold on the fifty-dollar late fee, giving the host institution in Spain until November first to get the official transcript to us. STUDENT: That sounds perfect! Do I need any proof that the transcript was actually sent? STAFF: Yes, you do. You'll need to attach some sort of confirmation, like an email receipt from the university in Spain showing that you requested and paid for the transcript delivery. As long as that receipt is dated before October fifteenth, you're good. STUDENT: Oh, I definitely have that. I have the confirmation email right here on my phone. I can print it out at the library and bring it back. STAFF: Actually, you don't even need to print it. You can upload the PDF of the receipt directly through the student portal when you submit the waiver form online. It's much faster. STUDENT: Wow, that's incredibly convenient. I'll go ahead and do that right now. Thank you so much for your help! STAFF: My pleasure. Just make sure you get it submitted before five p.m. on the fifteenth, or the system locks the standard waiver option. [Q12] Why does the student go to the registrar's office?

(Shared with Q12.) [Q13] According to the administrator, what is the purpose of the "Pending Transcript Waiver" form?

(Shared with Q12.) [Q14] What can be inferred about the student's situation regarding the confirmation receipt?

(Shared with Q12.) [Q15] Why does the administrator mention the "five p.m." deadline on October fifteenth?

(Shared with Q12.) [Replay: "I mean, I did my part and requested it weeks ago. It feels a bit unfair to be charged fifty dollars just because of international shipping delays."] [Q16] Why does the student say this:

NARRATOR: Listen to part of a lecture in a geology class. PROFESSOR: Good morning, everyone. Today, we're exploring a geological phenomenon that's often mistaken for a minor earthquake, though its origin is atmospheric rather than tectonic. I'm talking about cryoseisms—sometimes colloquially called "frost quakes." A cryoseism is a non-tectonic seismic event, meaning it doesn't involve the movement of tectonic plates. Instead, it's caused by a sudden, rapid freezing of water-saturated soil or rock. Now, how does this happen? PROFESSOR: First, we need specific environmental conditions. It begins with saturated ground—soil that's completely soaked with water. If we have a sudden, extreme drop in temperature, what we call a flash freeze, the water in the soil rapidly freezes. As we know from basic chemistry, when water freezes, it expands. But because the surface soil freezes first, it forms an impermeable, rigid icy crust. This crust traps the liquid water beneath it. As that sub-surface water continues to freeze, it has nowhere to expand, creating immense hydrostatic pressure—that's the force exerted by a fluid at rest due to the force of gravity, or in this case, confined expansion. PROFESSOR: When this hydrostatic pressure exceeds the strength of the surrounding frozen soil and rock, the ground literally ruptures. This sudden cracking releases a burst of seismic energy, producing a loud booming sound and localized ground shaking. To those nearby, it feels like an earthquake or even a localized explosion. STUDENT: Professor, does this happen every time there's a cold snap? I mean, shouldn't we hear these booms all winter in cold climates? PROFESSOR: That's a fair question, Tomas. And the answer is no, cryoseisms are actually quite rare because they require a very precise sequence of events. One critical factor is the absence of snow cover. You see, snow acts as an insulating blanket. A thick layer of snow prevents the ambient air temperature from rapidly penetrating deep into the soil. If there is snow on the ground, the soil temperature drops gradually, allowing the pressure to dissipate slowly without a sudden rupture. So, we need bare, saturated ground followed by a drastic temperature plunge—typically a drop of at least fifteen to twenty degrees Celsius within a single day. PROFESSOR: Let’s look at a documented event from a few years ago in a northern temperate region to illustrate this. In early December, the area experienced heavy, persistent rainfall, which thoroughly saturated the clay-rich soil. Now, clay is important because it retains moisture exceptionally well. The next day, a powerful cold front swept through. The temperature plummeted from five degrees above freezing to minus twenty-two degrees Celsius in less than eighteen hours. And because it was early winter, there was absolutely no snow cover to insulate the ground. PROFESSOR: In the middle of the night, residents reported hearing explosive cracks that sounded like trees snapping or heavy objects falling on their roofs. Some even felt their houses shake. Seismographs in the region recorded high-frequency waves, but the source was extremely shallow—less than a few meters deep. This shallow depth is another key difference; tectonic earthquakes originate miles beneath the surface, whereas cryoseisms are strictly surficial, occurring right at the boundary between the frozen crust and the saturated layer. PROFESSOR: Wait, let me clarify one thing about the energy release. Unlike tectonic quakes, which can devastate vast regions, the seismic waves from a cryoseism decay—or lose energy—very quickly. This means the structural vibrations are highly localized. If a cryoseism occurs in your backyard, you will definitely feel it and hear it, but your neighbor down the street might not experience a thing. This high rate of attenuation, which refers to the rapid reduction in the intensity of a wave as it travels through a medium, is why cryoseisms rarely cause significant structural damage beyond minor cracks in driveways or foundations. [Q17] What is the lecture mainly about?

(Shared with Q17.) [Q18] According to the professor, what role does clay play in the occurrence of a cryoseism?

(Shared with Q17.) [Q19] Why does the professor discuss snow cover?

(Shared with Q17.) [Q20] In the case study discussed by the professor, what sequence of events led to the cryoseism?

(Shared with Q17.) [Q21] What can be inferred about the seismic waves produced by a cryoseism compared to those produced by a tectonic earthquake?

(Shared with Q17.) [Replay: "Wait, let me clarify one thing about the energy release."] [Q22] Why does the speaker say this:

NARRATOR: Listen to part of a lecture in a linguistics class. PROFESSOR: Good morning, everyone. Today we're exploring psycholinguistics, specifically how the language we speak influences our internal representation of time... a concept known as spatial-temporal mapping. Now, we all know—well, we assume that time is abstract, right? We can't physically see it or touch it. So, to think about it, our brains borrow spatial concepts. PROFESSOR: In most, uh, familiar languages, we use what's called 'ego-centered temporal mapping.' This means we organize time relative to our own physical bodies. The future is typically 'in front' of us—think of phrases like 'looking forward to next week'—while the past is 'behind' us, as in 'leaving the past behind.' PROFESSOR: But is this bodily coordinate, um, system universal? Actually, no. Some linguistic communities rely on what researchers call 'absolute temporal mapping.' Instead of using their own bodies as the reference point, these speakers organize time using fixed, external environmental coordinates, such as cardinal directions—north, south, east, and west. PROFESSOR: Let's look at a fascinating experiment that highlights this difference. Researchers gave participants a set of photographs showing a person at different stages of life—from childhood to old age. The task was simple: arrange the photos in chronological order. PROFESSOR: Now, when speakers of an ego-centered language, like English or Swedish, did this task, they almost always arranged the photos from left to right. Why? Because in their writing systems, reading progresses from left to right, which reinforces a horizontal, body-relative timeline. PROFESSOR: But when speakers of an absolute-frame language did the same task, their behavior was completely different. They didn't care about left or right. Instead, their arrangement depended entirely on which direction they were facing! If they were facing south, they laid the photos out from left to right—which happens to be east to west. If they were facing north, they laid them out from right to left—which is still east to west. And if they faced east, they laid the photos toward their body. In other words, for them, time always flows from east—where the sun rises—to west, where it sets. Their cognitive map of time is anchored to the Earth, not to their own shoulders. STUDENT: Wait, Professor, does that mean they have to constantly keep track of where north or east is, just to talk about yesterday or tomorrow? PROFESSOR: Precisely, Yuki. To speak these languages, you must possess an incredibly sharp, almost automatic sense of orientation. If you don't know which way is east, you can't grammatically construct sentences about time, or even space for that matter. PROFESSOR: This brings us to 'co-speech gestures'—the spontaneous hand movements we make while talking. When English speakers talk about the future, they might gesture forward. But when absolute-frame speakers talk about yesterday or tomorrow, their hand movements track the actual physical path of the sun, regardless of which way they are currently facing. If they say 'yesterday' while facing north, they might point to their right—toward the east. If they turn around to face south, and say 'yesterday' again, their hand will swing to their left, still pointing east. PROFESSOR: So, what does this tell us? It suggests that language isn't just a tool for translating fully formed thoughts into sound. Instead, the specific grammatical structures and vocabulary of our language actually shape how we construct our basic cognitive reality—including our fundamental perception of time itself. [Q23] What is the lecture mainly about?

(Shared with Q23.) [Q24] According to the professor, what determines the direction in which speakers of an absolute-frame language arrange chronological photos?

(Shared with Q23.) [Q25] According to the lecture, which of the following are characteristic of speakers of absolute-frame languages? Choose 2 answers.

(Shared with Q23.) [Q26] Why does the professor mention the direction of writing systems, such as reading from left to right?

(Shared with Q23.) [Q27] What does the professor imply about the relationship between language and cognitive reality?

(Shared with Q23.) [Replay: "If you don't know which way is east, you can't grammatically construct sentences about time, or even space for that matter."] [Q28] Why does the speaker say this: