TOEFL 托福 听力原创模拟题 3

NARRATOR: Listen to a conversation between a student and a professor. Student: Hi, Professor Carmen. Do you have a few minutes? I wanted to talk about my research proposal for our ecology class. Professor: Of course, Diego. Come on in. Is this about the final paper project? Student: Yes, it is. The proposal is due this Friday, but I am having some trouble. I chose ocean warming as my topic, but now I feel a bit lost. Professor: Ah, yes. Ocean warming is a very important topic. However, it is also extremely broad. Remember, our final paper has a strict limit of five pages. You cannot cover the whole world's oceans in just five pages! Student: Right, I see the problem now. I started reading some articles, and there was just too much information. I did not know what to include. Professor: That is a common issue. My advice is to narrow your focus. Instead of the entire planet, you should look at one specific ecosystem. For example, you could write about how rising temperatures affect the kelp forests... uh, I mean, the giant kelp forests along the California coast. Student: Oh, that sounds much more manageable. I actually read a short article about California's kelp forests last week. Professor: Perfect! If you focus on that one area, you can easily explain the local effects in five pages. You can look at how the warmer water affects the kelp, and then how that impacts the fish that live there. Student: That makes a lot of sense. It gives me a clear structure for my paper. First, I will introduce the kelp forests, next, I will discuss the temperature changes, and finally, I will explain the impact on the fish. Professor: Exactly. That is a solid plan. Now, you just need to update your written proposal with this new focus. Student: Okay, I can do that. Is there a specific format for the proposal? Professor: Yes, it should be just one page. It needs a brief title, your main research question, and a list of three academic sources you plan to use. Student: Okay, one page is very reasonable. I will rewrite the proposal tonight and submit it online. I know the deadline is Friday at five o'clock, so I will definitely have it done by then. Professor: Excellent. If you need help finding those three sources, you can also ask the science librarian. Student: Thanks, Professor Carmen. I will head to the library right now. [Q1] Why does the student go to see the professor?

中文翻译

旁白：听一段学生和教授之间的对话。 学生：您好，卡门教授。您现在方便吗？我想和您谈谈我们生态学课程的研究提案。 教授：当然可以，迭戈。快进来。是关于期末论文项目的事吗？ 学生：是的。提案这周五就要交了，但我遇到了一些困难。我选了“海洋变暖”作为主题，但现在感觉有点没有方向。 教授：啊，是的。海洋变暖是一个非常重要的课题。不过，这个范围也太宽泛了。记住，我们的期末论文有严格的字数限制，最多五页。你不可能在短短五页纸里把全球的海洋都写完！ 学生：对，我现在明白问题所在了。我开始读了一些文章，信息实在太多了。我都不知道该往里写些什么。 教授：这是个常见的问题。我的建议是缩小你的研究范围（narrow your focus）。不要关注整个地球，你应该着眼于一个具体的生态系统。比如，你可以写温度上升是如何影响海藻林的……呃，我是说加利福尼亚海岸的巨藻林。 学生：噢，那听起来容易写多了。上周我刚好读过一篇关于加州海藻林的短文。 教授：太好了！如果你只专注于这一个区域，就能轻松地在五页里把当地的影响解释清楚。你可以研究水温升高如何影响海藻，进而如何影响生活在那里的鱼类。 学生：非常有道理。这让我的论文结构变得很清晰。首先，我会介绍海藻林，接着讨论温度变化，最后解释对鱼类的影响。 教授：没错。这是一个很扎实的计划。现在，你只需要根据这个新重点来修改你的书面提案。 学生：好的，没问题。提案有什么具体的格式要求吗？ 教授：有的，只需要写一页纸。它需要一个简短的标题、你的核心研究问题，以及一份你计划使用的三个学术资源列表。 学生：好的，一页纸非常合理。我今晚就重写提案并在网上提交。我知道截止日期是周五下午五点，我一定会在那之前完成的。 教授：太棒了。如果你在寻找那三个资源时需要帮助，也可以去咨询科学图书馆馆员。 学生：谢谢卡门教授。我现在就去图书馆。

(Shared with Q1.) [Q2] According to the professor, what is one requirement for the final paper?

中文翻译

（与第1题共用听力材料。）[第2题] 根据教授的说法，期末论文的要求之一是什么？

(Shared with Q1.) [Q3] What does the professor suggest that Diego focus his research on?

中文翻译

（与第1题共用音频。）[Q3] 教授建议Diego将研究重点放在什么上？

(Shared with Q1.) [Q4] What can be inferred about Diego's plan after speaking with the professor?

中文翻译

（与第1题共用音频）[Q4] 关于迪亚戈在与教授沟通后的计划，可以推断出什么？

(Shared with Q1.) [Replay: "You cannot cover the whole world's oceans in just five pages!"] [Q5] Why does the professor say this:

中文翻译

“你不可能只用五页纸就涵盖全世界的海洋！”

NARRATOR: Listen to part of a lecture in a biology class. PROFESSOR: Alright, today we’re going to look at some extraordinary survivors in the plant kingdom. Most plants, as you know, can’t survive losing more than about ten percent of their water content. If they dry out beyond that, their cells collapse and they die. But there is a rare group of plants known as resurrection plants. These plants can tolerate losing up to ninety-five percent of their water. They shrivel up, look completely dead for months, or even years, and then, within hours of receiving water, they green up and resume photosynthesis. This incredible state of suspended animation is called anhydrobiosis—literally, life without water. STUDENT: Wait, so they don’t actually die? Their metabolic processes just stop? PROFESSOR: Exactly, Diego. Their metabolism drops to an undetectable level. Now, how do they do this without damaging their cellular machinery? Normally, when a plant cell dehydrates, its internal proteins fold incorrectly and clump together, causing irreversible damage. Resurrection plants prevent this using specialized proteins called Late Embryogenesis Abundant proteins, or LEA proteins for short. LEA proteins act as molecular shields. They bind to other cellular proteins and prevent them from unfolding or sticking to one another during dehydration. It’s like putting bubble wrap around fragile items before shipping them. PROFESSOR: But LEA proteins are only part of the story. The cells also undergo a process called vitrification. Vitrification is the transition of the cell's liquid cytoplasm into a non-crystalline, glass-like solid. Instead of forming sharp ice crystals—or, you know, collapsing under the pressure of water loss—the interior of the cell becomes a highly viscous, glassy substance. This sugary glass stabilizes the cellular structure, locking everything in place. It's like a biological pause button. When water is introduced, this glass dissolves instantly, and the cell goes right back to its normal liquid state. STUDENT: That sounds amazing. But isn't there a cost? I mean, if it's so great, why don't all plants do it? PROFESSOR: That's a crucial point. Yes, the energetic cost of producing these protective sugars and LEA proteins is immense. Resurrection plants grow very slowly compared to ordinary plants because they divert so much energy into protective mechanisms instead of rapid growth. So, in wet environments, they easily get outcompeted by normal plants. They only have an evolutionary advantage in extremely harsh, arid environments where other plants can't survive at all. Let's look at a specific example: the rose of Jericho. In the Chihuahuan Desert... Actually, let's call it by its common name, the false rose of Jericho, to avoid confusion with an unrelated Middle Eastern plant. This desert moss-like herb curls its stems into a tight, brown ball when dry. This curling isn't just a passive response; it actually protects the plant's inner, photosynthetic tissues from intense sunlight and wind damage while it is in its dormant state. It protects the machinery from photo-oxidation—damage caused by excess light when the plant cannot use that light for photosynthesis. [Q6] What is the lecture mainly about?

中文翻译

旁白：听一段生物课上的讲座片段。 教授：好的，今天我们要来认识植物界中一些非同寻常的生存专家。大家都知道，大多数植物在失去超过大约10%的水分后就无法存活。一旦脱水超过这个限度，它们的细胞就会萎缩，从而导致死亡。但有一类罕见的植物被称为“复苏植物”。这些植物可以承受高达95%的水分流失。它们会枯萎，看起来完全死掉，这种状态可以持续几个月甚至几年；而一旦得到水分，它们能在几小时内重新变绿并恢复光合作用。这种令人难以置信的假死状态被称为“脱水生活”（anhydrobiosis）——字面意思就是“没有水的生命”。 学生：等等，所以它们并没有真正死掉？只是代谢过程停止了？ 教授：没错，迭戈。它们的代谢率会降到几乎检测不到的水平。那么，它们是如何在不损坏细胞机制的情况下做到这一点的呢？通常情况下，当植物细胞脱水时，其内部的蛋白质会发生错误折叠并聚集在一起，造成不可逆的损伤。而复苏植物通过一种特殊的蛋白质来防止这种情况，这种蛋白叫做“胚胎发育晚期丰度蛋白”，简称 LEA 蛋白。LEA 蛋白就像分子盾牌一样，它们与细胞内的其他蛋白质结合，防止这些蛋白在脱水过程中展开或相互粘连。这就像是在运输易碎物品前给它们裹上气泡膜。 教授：但 LEA 蛋白只是原因之一。这些细胞还会经历一个被称为“玻璃化”（vitrification）的过程。玻璃化是指细胞质的液体状态转变为非晶态的、像玻璃一样的固体。细胞内部并不会形成锋利的冰晶，也不会在失水的压力下萎缩，而是变成了一种高粘度的玻璃状物质。这种含糖的“玻璃”稳定了细胞结构，将所有东西都固定在原位。这就像是一个生物学意义上的暂停键。当水分重新引入时，这种玻璃状物质会瞬间溶解，细胞也会立刻恢复到正常的液体状态。 学生：听起来太神奇了。但难道不需要付出代价吗？我是说，既然这个机制这么好，为什么不是所有植物都这样呢？ 教授：这是一个非常关键的问题。是的，产生这些保护性糖分和 LEA 蛋白需要消耗极大的能量。与普通植物相比，复苏植物生长得非常缓慢，因为它们把大量能量都转移到了保护机制上，而不是用于快速生长。因此，在湿润的环境中，它们很容易被普通植物竞争淘汰。它们只有在其他植物根本无法生存的极度恶劣、干旱的环境中，才具有进化优势。让我们来看一个具体的例子：耶利哥玫瑰。在奇瓦瓦沙漠中……其实，我们还是用它的俗称“假耶利哥玫瑰”吧，以免和一种毫不相干的中东植物混淆。这种像苔藓一样的沙漠草本植物在干燥时会把茎卷成一个紧实的褐色小球。这种卷曲并不仅仅是一种被动的反应，实际上它能在植物处于休眠状态时，保护其内部的光合作用组织免受强光 and 风害。它能保护这些细胞机制免受光氧化作用的伤害——也就是当植物无法利用光线进行光合作用时，过量光线所造成的损伤。

(Shared with Q6.) [Q7] According to the professor, what is the primary function of Late Embryogenesis Abundant (LEA) proteins?

中文翻译

（与第6题共享。）[第7题] 根据教授的说法，胚胎发育晚期丰度（LEA）蛋白的主要功能是什么？

(Shared with Q6.) [Q8] According to the lecture, what happens during the process of vitrification? Choose 2 answers.

中文翻译

（与第6题共用音频。）[Q8] 根据讲座内容，在玻璃化过程中会发生什么？选择2个答案。

(Shared with Q6.) [Q9] Why does the professor mention the "energetic cost" of producing LEA proteins and protective sugars?

中文翻译

（与第6题共用材料。）[第9题] 教授为什么要提到合成 LEA 蛋白和保护性糖分的“能量代价”？

(Shared with Q6.) [Q10] According to the professor, why does the false rose of Jericho curl its stems into a ball?

中文翻译

（与第6题共享。）[Q10] 根据教授的说法，假耶利哥玫瑰为什么要将茎卷成球状？

(Shared with Q6.) [Replay: "Actually, let's call it by its common name, the false rose of Jericho, to avoid confusion with an unrelated Middle Eastern plant."] [Q11] Why does the speaker say this:

中文翻译

事实上，我们还是用它的俗称“假耶利哥玫瑰”来称呼它吧，以免与一种毫不相关的中东植物相混淆。

NARRATOR: Listen to a conversation between a student and an academic advisor. ADVISOR: Hi Ingrid, come on in. What can I do for you today? STUDENT: Thanks, Dr. Hanson. Well, I'm doing my preliminary graduation audit online, and I noticed a discrepancy in my credit count. Specifically, my environmental studies major requires three upper-level electives. I took a course on sustainable urban development when I studied abroad in Sweden, and I was under the impression it would count. But on my student portal, it's just showing up as a general university elective, not fulfilling the major requirement. ADVISOR: Ah, I see. When courses are transferred from international programs, the registrar's system automatically categorizes them as general credits. To make them count toward a specific major, you need to file a formal Course Substitution Petition. Did you complete one of those? STUDENT: No, I didn't realize I had to. I thought because the study-abroad office approved the course before I left, it would happen automatically. ADVISOR: Uh, unfortunately, pre-approval just guarantees that the credits will transfer to the university, not how they apply to your specific department. You'll need to get the syllabus from that Swedish course and have the head of the Environmental Studies department sign off on the petition. STUDENT: Okay, that makes sense. Is there a deadline for that? ADVISOR: Yes, actually. For students graduating this term, all substitution petitions must be submitted to the registrar by this coming Friday at 4:00 PM. If you miss that, you can still submit it, but there's a fifty-dollar late-filing fee, and it might delay your official graduation clearance by a month. STUDENT: Oh wow, fifty dollars? And a delay? I definitely want to avoid that. It's Tuesday today, so I have a few days. The problem is, the department head, Dr. Vance, is attending a conference this week. I don't think she's on campus. ADVISOR: Oh, that's right. Dr. Vance is presenting in Chicago. But she is checking her email regularly. If you email her the petition form along with the syllabus, she can sign it digitally and scan it back to you. She's usually very accommodating with graduating seniors. STUDENT: That's a relief. I actually took that course last year... wait, I took it in my junior year—actually, it was the first semester of my senior year, so I have the syllabus saved on my laptop. I'll download the petition form right now. ADVISOR: Excellent. Once she emails it back, just forward it to me, and I'll submit it directly to the registrar's office to speed things up. STUDENT: Thank you so much, Dr. Hanson! You've saved me a lot of stress. [Q12] Why does the student go to see the academic advisor?

中文翻译

旁白：听一段学生和学术顾问之间的对话。 顾问：嗨，英格丽德，请进。今天有什么我可以帮你的吗？ 学生：谢谢，汉森博士。是这样的，我正在网上进行毕业学分预审，发现我的学分总数有点问题。具体来说，我的环境研究专业需要三门高阶选修课。我在瑞典留学时修了一门关于可持续城市发展的课程，我原以为这门课是可以计入专业学分的。但在我的学生门户网站上，它只显示为大学通用选修课，并没有满足专业课的要求。 顾问：啊，我明白了。当从海外项目转学分时，教务系统的后台会自动将它们归类为通用学分。要让它们计入特定专业，你需要提交一份正式的“课程替代申请”。你提交过这个申请吗？ 学生：没有，我不知道还要办这个。我以为因为留学办公室在我出发前就批准了这门课，系统就会自动转换。 顾问：额，遗憾的是，行前审批只能保证这些学分能转入学校，但不能决定它们如何应用到你的具体专业。你需要找到那门瑞典课程的教学大纲，并让环境研究系的系主任在申请表上签字。 学生：好的，我明白了。这个有截止日期吗？ 顾问：有的，实际上还挺赶的。对于本学期毕业的学生，所有的替代申请必须在下周五下午4点前提交给教务处。如果你错过了，虽然还能提交，但要交50美元的滞纳金，而且可能会让你的正式毕业审核批准推迟一个月。 学生：哇，50美元？还要推迟？我绝对不想碰到这种情况。今天是周二，所以我还有几天时间。但问题是，系主任万斯博士这周去参加学术会议了，我想她应该不在学校。 顾问：噢，对。万斯博士正在芝加哥做报告。不过她会定期查看邮件。如果你把申请表和教学大纲一起发邮件给她，她可以进行电子签名，然后扫描发回给你。她通常对即将毕业的大四学生非常关照。 学生：那我就放心了。其实我是去年上的那门课……等等，我是大三上的——不对，其实是大四第一学期，所以我笔记本电脑里存着那份教学大纲。我现在就去下载申请表。 顾问：太好了。一旦她给你回了邮件，你就直接转发给我，我会直接提交给教务处以加快办理进度。 学生：非常感谢您，汉森博士！您帮我减轻了不少压力。

(Shared with Q12.) [Q13] According to the advisor, what is guaranteed by the study-abroad office's pre-approval of a course?

中文翻译

（与第12题共用）[第13题] 根据指导老师的说法，留学办公室对课程的预先审批能确保什么？

(Shared with Q12.) [Q14] What does the advisor imply about Dr. Vance?

中文翻译

（与第12题共用音频。）[Q14] 关于万斯博士，指导老师暗示了什么？

(Shared with Q12.) [Q15] Why does the advisor mention the fifty-dollar late-filing fee?

中文翻译

（与第12题共用音频。）[第15题] 顾问为什么要提到50美元的逾期申请费？

(Shared with Q12.) [Replay: "Uh, unfortunately, pre-approval just guarantees that the credits will transfer to the university, not how they apply to your specific department."] [Q16] Why does the advisor say this:

中文翻译

（与第12题共用。）[重放：“呃，遗憾的是，预审只能保证学分可以转入这所大学，而不能保证这些学分如何具体应用到你所在的院系。”]

NARRATOR: Listen to part of a lecture in an environmental science class. PROFESSOR: Alright, everyone. Today we're diving into a relatively young subfield of environmental science called paleotempestology. Now, that's a mouthful, but it basically refers to the study of past tropical cyclone activity—specifically, hurricanes that occurred before the era of modern meteorological instruments. You see, our reliable instrumental records, which rely on satellites and weather stations, only go back about a century and a half. That is a mere blink of an eye when we're trying to understand long-term climate cycles. Without a deeper historical context, it's incredibly difficult to determine whether recent increases in hurricane intensity are part of a natural cycle or a direct result of modern climate change. PROFESSOR: So, how do we reconstruct storm histories from hundreds or thousands of years ago? We look for geological archives. Coastal lakes and freshwater marshes near the ocean are ideal for this. Under normal conditions, these quiet bodies of water accumulate fine-grained, dark organic mud. But when an intense hurricane strikes, its powerful storm surge breaches the protective coastal sand dunes. This surge carries coarse ocean sand far inland, depositing it on top of the quiet lake mud. Over time, as normal conditions return, organic mud begins to accumulate again, trapping that sand layer. This distinct layer of marine sand sandwiched between layers of dark lake mud is what we call an overwash deposit. By taking sediment cores—long cylindrical tubes of sediment extracted from the lake bottom—we can see these layers and count them like tree rings. STUDENT: Um, Ingrid here... Professor? How do we know a sand layer was actually caused by a hurricane and not, say, a massive tsunami or just an unusually high tide? PROFESSOR: An excellent question, Ingrid. An ordinary high tide simply doesn't have the energy to transport large volumes of coarse sand over a high dune barrier. Tsunamis certainly do, but tsunami deposits have distinct characteristics—they are typically much thicker, more chaotic, and cover a wider area. To verify that a sand layer represents a storm event, we rely on secondary lines of evidence, such as marine microfossils. These are microscopic remains of ocean-dwelling organisms, like foraminifera—single-celled organisms that secrete tiny, delicate calcium carbonate shells. Since these organisms cannot survive in freshwater lakes, finding their shells preserved within a lake's sand layer is a definitive biological signature of a marine intrusion caused by a storm surge. PROFESSOR: In addition to these microfossils, researchers also analyze geochemical proxies, which are chemical signatures preserved in the sediment that reflect environmental conditions. For instance, we often look at the ratio of strontium to calcium. Seawater has a much higher concentration of strontium than fresh water does. When a storm surge floods a coastal lake, it leaves behind a distinct chemical footprint—a spike in the strontium-to-calcium ratio within the sediment core. This allows us to detect past storms even when the physical sand layer is too thin or degraded to be easily seen. PROFESSOR: Let's look at a concrete example of how this plays out in practice. Researchers extracted sediment cores from a freshwater lake located along the Gulf of Mexico. This lake is separated from the ocean by a wide beach barrier. By analyzing the overwash deposits and the microfossils in these cores, they managed to reconstruct a five-thousand-year history of intense category four and five hurricanes. PROFESSOR: Now, what they found was quite surprising. Instead of a steady, uniform distribution of storms over those five millennia, there was a highly active period between three thousand four hundred and one thousand years ago, during which intense hurricanes hit the region about three times more frequently than they do today. But here is the kicker: global sea-surface temperatures during that active period were not significantly warmer than they are now. This suggests that while warm water is the engine of a hurricane, other factors, such as shifts in regional atmospheric circulation patterns—like the positioning of high-pressure systems over the ocean—might play an even greater role in directing where these powerful storms make landfall over long timescales. Without this paleotempestology data, we would still be operating under the assumption that sea-surface temperature is the sole driver of long-term hurricane trends. [Q17] What is the lecture mainly about?

中文翻译

旁白：听一段环境科学课上的讲座。 教授：好的，同学们。今天我们要深入探讨环境科学中一个相对年轻的子领域，叫做“古风暴学”（paleotempestology）。这个词有点拗口，但它基本上是指对过去热带气旋活动的研究——具体来说，是指在现代气象仪器时代到来之前发生的飓风。大家知道，我们依靠卫星和气象站获取的可靠仪器记录只能追溯到大约一个半世纪前。在试图理解长期气候周期时，这只是转瞬即逝的一瞬间。如果没有更深层的历史背景，我们就极难判断近期飓风强度的增加究竟是自然周期的一部分，还是现代气候变化的直接结果。 教授：那么，我们如何重建几百甚至几千年前的风暴历史呢？我们寻找地质档案。靠近海洋的沿海湖泊和淡水沼泽是理想的选择。在正常情况下，这些平静的水体堆积着细颗粒的深色有机泥。但当强飓风袭击时，其强大的风暴潮会突破起保护作用的沿岸沙丘。风暴潮将粗糙的海洋沙子带到内陆深处，沉积在平静的湖泥之上。随着时间的推移，当正常环境恢复后，有机泥又开始堆积，从而将那层沙子锁在其中。这种夹在深色湖泥层之间的独特海洋沙层，就是我们所说的“越岸沉积物”（overwash deposit）。通过采集沉积物芯——从湖底提取的长圆柱状沉积物管——我们可以看到这些分层，并像数年轮一样对它们进行计数。 学生：额，我是英格丽德……教授？我们怎么知道沙层确实是由飓风引起的，而不是比如大规模海啸，或者仅仅是异常的高潮位呢？ 教授：非常好的问题，英格丽德。普通的高潮根本没有能量将大量粗沙带过高耸的沙丘屏障。海啸当然可以，但海啸沉积物具有独特的特征——它们通常厚得多，更混乱，覆盖区域也更广。为了证实某个沙层确实代表一次风暴事件，我们依赖于辅助证据，比如海洋微体化石。这些是生活在海洋中的生物的微观遗骸，比如有孔虫——一种分泌微小、精致的碳酸钙外壳的单细胞生物。由于这些生物无法在淡水湖中生存，在湖泊沙层中发现保存完好的外壳，就是风暴潮引发海水入侵的决定性生物特征。 教授：除了这些微体化石，研究人员还分析地球化学指标，即保存在沉积物中、反映环境状况的化学特征。例如，我们经常观察锶与钙的比例。海水中锶的浓度远高于淡水。当风暴潮淹没沿海湖泊时，它会留下独特的化学印记——沉积物芯中锶钙比的急剧飙升。这使我们即使在物理沙层太薄或退化到难以察觉的情况下，也能检测到过去的风暴。 教授：让我们来看一个在实际应用中如何运作的具体例子。研究人员从墨西哥湾沿岸的一个淡水湖中提取了沉积物芯。这个湖泊通过宽阔的沙滩屏障与海洋隔开。通过分析这些沉积物芯中的越岸沉积物和微体化石，他们成功重建了该地区五千年来发生四级和五级强飓风的历史。 教授：然而，他们的发现相当令人吃惊。在过去的五千年里，风暴并不是均匀、稳定地分布，而是在距今3400年至1000年之间有一个高度活跃的时期，在此期间，袭击该地区的强飓风频率大约是今天的3倍。但最关键的是：在那个活跃期，全球海表温度并不比现在明显偏高。这表明，虽然温水是飓风的引擎，但其他因素，如区域大气环流格局的变化——比如海洋上高压系统的位置——在漫长的时间尺度上，对于引导这些强风暴在哪里登陆可能起到了更大的作用。如果没有这些古风暴学数据，我们可能仍会以为海表温度是长期飓风趋势的唯一驱动因素。

(Shared with Q17.) [Q18] According to the professor, what distinguishes an overwash deposit from normal coastal lake sediment?

中文翻译

（与第17题共用音频。）[第18题] 根据教授的说法，冲溢沉积物与普通的沿海湖泊沉积物有什么区别？

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

中文翻译

（与第17题共用。）[Q19] 教授为什么要讨论海啸？

(Shared with Q17.) [Q20] Based on the discussion of the Gulf of Mexico lake study, what did the researchers conclude about long-term hurricane frequency?

中文翻译

根据对墨西哥湾湖泊研究的讨论，研究人员对长期飓风发生频率得出了什么结论？

(Shared with Q17.) [Q21] What can be inferred about the use of microfossils in paleotempestology?

中文翻译

（与第17题共用音频。）[Q21] 关于微体化石在古风暴学中的应用，可以推断出什么？

(Shared with Q17.) [Replay: "But here is the kicker: global sea-surface temperatures during that active period were not significantly warmer than they are now."] [Q22] Why does the speaker say this:

中文翻译

（与第17题共享。）[重放：“但最让人意想不到的是：在那个活跃时期，全球海面温度并没有显著高于现在的温度。”]

NARRATOR: Listen to part of a lecture in a psychology class. PROFESSOR: Good morning, everyone. Today we are exploring a rather humbling aspect of cognitive psychology... how we think we know much more than we actually do. This phenomenon is known as the Illusion of Explanatory Depth. Now, what does this mean? Simply put, it is a cognitive bias where individuals believe they understand the mechanics of complex systems—say, how a zipper works, or how a helicopter flies—far better than they actually do. We mistake our familiarity with these objects for actual, functional understanding. PROFESSOR: This was famously demonstrated in studies where, um, participants were asked to rate their understanding of everyday devices on a scale of one to seven. Most people confidently rated themselves quite high—fives or sixes. But then, they were asked to do something... well, something seemingly simple: write down a detailed, step-by-step explanation of exactly how that device operates. For example, a mechanical cylinder lock. When forced to explain how the key aligns the pins inside the cylinder—actually, it's the cylinder's plug—to allow it to rotate... well, they couldn't. Their self-ratings plummeted to ones and twos. STUDENT: Excuse me, Professor? Why does this happen? Is it just because we are lazy, or is there a deeper cognitive reason? PROFESSOR: That is exactly the pivot we need, Sofia. It is not mere laziness. It actually stems from what psychologists call the Community of Knowledge. This concept suggests that human beings do not store all information individually; instead, we rely on what we call a cognitive division of labor. We treat the expertise of others—engineers, lockmakers, scientists—as if it were stored inside our own heads. Because we can easily access this external expertise, or because we see the device working every day, our brains fail to draw a clear boundary between where our own knowledge ends and the community's knowledge begins. PROFESSOR: Now, this leads to a secondary effect: Epistemic Overreliance. This is the tendency to mistake our mere access to information for personal, internal comprehension. In our modern digital age, this is amplified. When you can look up how a touchscreen works in five seconds on your phone, you know, you feel as though you already understood it. You confuse 'retrievability' with 'understanding.' PROFESSOR: But let us go back to the lock experiment. It is crucial to realize that this illusion is not entirely a bad thing. In fact, evolutionary psychologists argue that the Illusion of Explanatory Depth is highly adaptive. If we had to fully comprehend the intricate mechanics of every tool we used, from a simple stone axe to a computer, our cognitive bandwidth would be completely overwhelmed. By outsourcing the details, we free up our mental resources for higher-level decision making. PROFESSOR: However, the trouble starts when we must make collective decisions—such as voting on complex public policies or environmental regulations. If we suffer from this illusion, we might support simplistic, highly flawed policies because we mistakenly believe we understand the underlying science. We ignore the nuance because we think we already have it figured out. [Q23] What is the lecture mainly about?

中文翻译

旁白：听一段心理学课上的讲座片段。 教授：大家早上好。今天我们将探讨认知心理学中一个相当令人深思的方面……那就是我们如何以为自己知道得很多，而实际上却并非如此。这种现象被称为“解释深度幻觉”（Illusion of Explanatory Depth）。那么，这意味着什么呢？简单来说，这是一种认知偏差，即个体认为自己对复杂系统运行机制的理解——比如拉链是如何工作的，或者直升机是如何飞行的——远比他们实际掌握的要好。我们误把对这些事物的熟悉度当成了实际的、功能性的理解。 教授：在一项著名的研究中证明了这一点。在研究中，嗯，参与者被要求对他们对日常设备运行原理的理解程度进行评分，分值为一到七分。大多数人非常自信地给自己打了相当高的分数——五分或六分。但随后，他们被要求做一件事……嗯，一件看似简单的事：详细写下该设备究竟是如何运作的，一步一步写清楚。例如，机械弹子锁。当被迫解释钥匙是如何使锁芯内部的弹子对齐——实际上是锁芯的塞体——从而使其能够转动时……好吧，他们做不到。他们的自我评分随之骤降到了一分和二分。 学生：打扰一下，教授？为什么会这样呢？仅仅是因为我们懒惰，还是有更深层次的认知原因？ 教授：这正是我们需要转换的话题，索菲亚。这不仅仅是因为懒惰。它实际上源于心理学家所说的“知识共同体”（Community of Knowledge）。这个概念表明，人类并不会单独存储所有的信息；相反，我们依赖于所谓的“认知分工”。我们将他人的专业知识——工程师、制锁匠、科学家——视为存储在自己大脑中的知识。因为我们可以轻松获取这些外部专业知识，或者因为我们每天都看到设备在运行，我们的大脑无法在自身知识的终点与共同体知识的起点之间画出一条清晰的界限。 教授：现在，这导向了第二个效应：“认识性过度依赖”（Epistemic Overreliance）。这是一种倾向，即误将我们仅仅能够“获取”信息，等同于个人内部的“理解”。在我们的现代数字时代，这种效应被放大了。当你花五秒钟在手机上查到触摸屏是如何工作的，你知道，你就会觉得好像自己已经理解了它。你把“可检索性”与“理解”混淆了。 教授：但让我们回到锁的实验。至关重要的一点是，我们要意识到这种幻觉并不完全是一件坏事。事实上，演化心理学家认为，“解释深度幻觉”具有高度的适应性。如果我们必须完全理解我们使用的每种工具——从简单的石斧到计算机——的复杂机制，我们的认知带宽将会被完全占满。通过将细节“外包”，我们释放了心智资源，以便进行更高层次的决策。 教授：然而，当我们必须做出集体决策时——比如对复杂的公共政策或环境法规进行投票，问题就来了。如果我们受这种幻觉的影响，我们可能会支持简单化且存在严重缺陷的政策，因为我们误以为自己理解其背后的科学原理。我们忽视了微妙的细节，因为我们以为自己已经搞懂了。

(Shared with Q23.) [Q24] According to the professor, what happened when participants in the lock study were asked to write down a step-by-step explanation?

中文翻译

（与第23题共用音频。）[第24题] 根据教授的说法，在关于锁的研究中，当参与者被要求写下逐步解释时，发生了什么？

(Shared with Q23.) [Q25] According to the lecture, what are two key characteristics of the "Community of Knowledge"? Choose 2 answers.

中文翻译

（与第23题共用音频。）[第25题] 根据讲座内容，“知识共同体”（Community of Knowledge）的两个关键特征是什么？请选择2个选项。

(Shared with Q23.) [Q26] Why does the professor mention a touchscreen?

中文翻译

（与第23题共用听力文本。）[第26题] 教授为什么要提到触摸屏？

(Shared with Q23.) [Q27] What does the professor imply about the Illusion of Explanatory Depth from an evolutionary perspective?

中文翻译

（与第23题共用音频。）[第27题] 关于“解释深度幻觉”，教授从演化角度暗示了什么？

(Shared with Q23.) [Replay: "When forced to explain how the key aligns the pins inside the cylinder—actually, it's the cylinder's plug—to allow it to rotate... well, they couldn't."] [Q28] Why does the speaker say this:

中文翻译

“当被要求解释钥匙是如何让锁芯内部的弹子对齐——确切地说是锁芯里的锁胆——从而使其旋转时……额，他们根本解释不出来。”