TOEFL 托福 聽力原創模擬試題 1

NARRATOR: Listen to a conversation between a student and a professor. STUDENT: Hi, Professor. Um, do you have a few minutes to talk? I wanted to get some quick feedback on my draft for the biology paper. PROFESSOR: Of course, Diego. Come on in. You are writing about ecosystems, right? STUDENT: Yes. But I am having a big problem with the introduction. I already wrote three pages, but I feel like my main topic is just too broad. PROFESSOR: Let me see... Ah, yes. You are trying to cover the entire Amazon rainforest ecosystem. That is definitely too big for a five-page paper. You will run out of space very quickly. STUDENT: That is what I was worried about. So, should I, you know, focus on just one specific organism instead? PROFESSOR: Exactly. For example, you could write about how orchids survive on high tree branches. That will keep your paper focused and well under the five-page limit. STUDENT: That is a great idea. I will change my focus to orchids. Also, I wanted to double-check the deadline for submitting this draft to you. PROFESSOR: The final deadline for submitting drafts for my review is this Wednesday at 4:00 PM. Oh, wait, my mistake, it is actually Thursday at 4:00 PM. That gives me enough time to read them before our Friday lecture. STUDENT: Okay, perfect. I will work on the orchid topic tonight and email you the draft by Thursday afternoon. PROFESSOR: Sounds like a plan, Diego. Remember, when you write about the orchids, make sure to explain their symbiotic relationship with the trees. That is a key concept we discussed last week. STUDENT: Right, the relationship where one organism benefits and the other is not harmed. Commensalism, correct? PROFESSOR: Yes, exactly! If you include that term and define it, your paper will be in excellent shape. STUDENT: Thank you, Professor. I really appreciate your help. See you in class on Friday. PROFESSOR: You are welcome, Diego. Have a good afternoon. [Q1] Why does the student go to see the professor?

中文翻譯

旁白：請聽一段學生與教授之間的對話。 學生：教授好。嗯，您有幾分鐘的時間聊聊嗎？我想針對我的生物學報告草稿，快速聽取一些您的回饋。 教授：當然可以，Diego。快進來。你是在寫關於生態系統的主題，對吧？ 學生：是的。但我現在在引言部分遇到了很大的問題。我已經寫了三頁，但我覺得我的主旨實在太廣泛了。 教授：讓我看看……啊，沒錯。你試圖涵蓋整個亞馬遜雨林生態系統。對於一篇五頁的報告來說，這主題確實太大了。你很快就會不夠寫。 學生：這正是我的擔憂。所以，您覺得我是不是應該縮小範圍，只專注於某個特定的生物？ 教授：沒錯。例如，你可以寫蘭花如何在高的樹枝上生存。這能讓你的報告維持焦點，且絕對不會超過五頁的限制。 學生：好主意。我會把焦點改為蘭花。另外，我想再次確認跟您提交這份草稿的截止日期。 教授：提交草稿供我批改的最後期限是這週三下午 4 點。喔，等等，我記錯了，其實是週四下午 4 點。這樣我才有足夠的時間在我們週五上課前看完。 學生：好的，太棒了。我今晚會開始寫蘭花的主題，並在週四下午前把草稿用電子郵件寄給您。 教授：就這麼辦，Diego。記住，當你寫到蘭花時，一定要解釋牠們與樹木之間的共生關係。這是我們上週討論過的核心概念。 學生：沒錯，就是一種生物獲益而另一種生物不受影響的關係。是「片利共生」，對嗎？ 教授：是的，完全正確！如果你把這個專有名詞放進去並加以定義，你的報告就會寫得非常好。 學生：謝謝教授，我真的很感謝您的幫忙。週五課堂上見。 教授：不客氣，Diego。祝你有個美好的下午。

(Shared with Q1.) [Q2] According to the professor, what is the main problem with the student's current draft?

中文翻譯

（與第1題共用音檔。）[第2題] 根據教授的說法，學生目前草稿的主要問題是什麼？

(Shared with Q1.) [Q3] What is the deadline for the student to email his draft to the professor?

中文翻譯

(與第 1 題共用) [第 3 題] 學生將草稿以電子郵件寄給教授的截止時間為何？

(Shared with Q1.) [Q4] What can be inferred about the concept of commensalism?

中文翻譯

（與第 1 題共用。）[第 4 題] 關於「片利共生」的概念，可以推論出什麼？

(Shared with Q1.) [Replay: "Oh, wait, my mistake, it is actually Thursday at 4:00 PM."] [Q5] Why does the professor say this:

中文翻譯

（與第 1 題共用。）［重播：「喔，等等，是我弄錯了，實際上是星期四下午四點。」］

NARRATOR: Listen to part of a lecture in a biology class. PROFESSOR: Okay, today we are going to look at an incredible ecological partnership in the plant world. Specifically, how some flowering plants depend on insects—not for pollination, which we have already covered, but for dispersing their seeds. This process is called myrmecochory. Simply put, myrmecochory is the dispersal of seeds by ants. It is a mutually beneficial relationship, or a mutualism, found in thousands of plant species worldwide, especially in temperate forest floors. PROFESSOR: Now, how does a plant convince an ant to do the heavy lifting of carrying its seeds all the way back to the nest? Well, these plants produce seeds with a special external structure called an elaiosome. An elaiosome is a fleshy, lipid-rich appendage attached directly to the seed coat. It is packed with lipids, proteins, and essential vitamins that are highly nutritious and attractive to ants. STUDENT: Um, excuse me, Professor. Do the ants end up eating the seed itself? Because, you know, if they eat the seed, it can't grow into a new plant, right? PROFESSOR: Excellent question, Tomas. No, they don't. You see, the ant picks up the seed by the elaiosome, carries it back to its underground nest, and feeds the nutritious appendage to its larvae. The actual seed—which has a tough outer coat and is completely inedible to the ants—remains entirely undamaged. Once the elaiosome is consumed, the ants carry the bare seed out of their main living quarters and discard it in their underground waste dump, or refuse chamber. PROFESSOR: And this is where the magic happens. The nest's waste chamber is essentially a protected, nutrient-rich compost pile. It is rich in organic matter, which shelters the seed from predators like birds or rodents, and protects it from forest fires. So, the seed is deposited in the perfect environment to germinate. PROFESSOR: But here is where it gets even more fascinating. Recent research shows that plants don't just rely on nutritional rewards. They also use chemical mimicry. This refers to the plant producing chemical compounds on the elaiosome that chemically mimic, or imitate, the odor of insects. Specifically, some plants release certain fatty acids that smell exactly like dead insects or ant prey. To an ant, this olfactory signal says, 'Hey, this is valuable food, pick me up immediately!' The ant is essentially tricked by its own chemical communication system into transport—uh, transporting the seed. It's a highly elegant evolutionary strategy. By manipulating the ants' hardwired sensory systems, these plants guarantee their offspring are safely tucked away underground. [Q6] What is the lecture mainly about?

中文翻譯

旁白：請聽一段生物課的課堂講課。 教授：好的，今天我們要來探討植物界中一種令人難以置信的生態合作關係。具體來說，就是某些開花植物如何依賴昆蟲——不是為了我們已經學過的授粉，而是為了傳播種子。這個過程被稱為「蟻媒傳播」（myrmecochory）。簡單來說，蟻媒傳播就是由螞蟻來傳播種子。這是一種互利共生的關係，在全球數千種植物中都可以發現這種現象，特別是在溫帶森林的地表。 教授：那麼，植物要如何說服螞蟻承擔起粗重的工作，大老遠把種子搬回巢穴呢？其實，這些植物產生的種子具有一種特殊的外部結構，叫做「油質體」（elaiosome）。油質體是一種直接附著在種皮上、富含脂質的肉質附屬物。它富含脂質、蛋白質和必需維生素，對螞蟻來說營養價值極高且非常有吸引力。 學生：呃，不好意思，教授。螞蟻最後會把種子本身吃掉嗎？因為如果牠們把種子吃了，種子就無法長成新植物了，對吧？ 教授：好問題，湯瑪斯。不，牠們不會。你看，螞蟻會咬著油質體把種子搬起，帶回地下巢穴，並把這個營養豐富的附屬物餵給幼蟲。而種子本身——因為有堅硬的外殼，且對螞蟻來說完全無法食用——會保持完好無損。一旦油質體被吃完，螞蟻就會把光禿禿的種子移出牠們的主要生活區，丟棄在地下垃圾場，也就是廢棄物室中。 教授：這就是神奇的地方了。巢穴的廢棄物室基本上是一個受到保護且營養豐富的堆肥堆。這裡含有豐富的有機質，能保護種子免受鳥類或囓齒動物等捕食者的侵害，並保護牠們免受森林火災的影響。因此，種子等於是被放置在最適合發芽的完美環境中。 教授：但更迷人的地方在這裡。最近的研究顯示，植物不單單只依賴營養回饋。牠們還會利用「化學擬態」（chemical mimicry）。這是指植物在油質體上產生化學化合物，從化學上模擬或模仿昆蟲的氣味。具體來說，某些植物會釋放特定的脂肪酸，聞起來就像死去的昆蟲或螞蟻的獵物。對螞蟻來說，這種嗅覺信號彷彿在說：「嘿，這是珍貴的食物，趕快把我搬走！」螞蟻基本上是被自己固有的化學溝通系統欺騙，從而協助運送——呃，運送種子。這是一個非常精妙的演化策略。藉由操縱螞蟻天生的感官系統，這些植物確保了自己的後代能安全地藏在地下。

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

中文翻譯

(與第 6 題共用) [第 7 題] 根據教授的說法，什麼是油質體？

(Shared with Q6.) [Q8] According to the professor, what are two benefits that a plant seed receives from being discarded in an ant nest's waste chamber? Choose 2 answers.

中文翻譯

（與第 6 題共用音檔。）[第 8 題] 根據教授的說法，植物種子被丟棄在蟻巢的垃圾室中，可以獲得哪兩項好處？請選出兩個答案。

(Shared with Q6.) [Q9] Why does the professor mention that the outer coat of the seed is tough and inedible?

中文翻譯

（與第 6 題共用。）[第 9 題] 教授為什麼提到種子的外殼堅硬且不可食用？

(Shared with Q6.) [Q10] According to the professor, how do some plants use chemical mimicry to influence ants?

中文翻譯

（與第 6 題共用。）[第 10 題] 根據教授的說法，某些植物如何利用化學擬態來影響螞蟻？

(Shared with Q6.) [Replay: "The ant is essentially tricked by its own chemical communication system into transport—uh, transporting the seed."] [Q11] Why does the speaker say this:

中文翻譯

（與第 6 題共用。）［重播：『螞蟻基本上是被自己身上的化學通訊系統給騙了，進而搬運——呃，搬運種子。』］

NARRATOR: Listen to a conversation between a student and a registrar office administrator. STUDENT: Hi there. Um, my name is Tomas. I'm a senior, and I'm planning to graduate this coming spring. I'm here because I was checking my online degree audit, and, well, it says I'm three credits short of the general education requirement for social sciences. But I was sure I'd completed that. STAFF: Hello, Tomas. Let me pull up your file... Okay, I see your record here. Yes, the system shows you have 117 credits, but you need 120 to graduate, with those three missing from social sciences. Did you take a course that maybe didn't get counted? STUDENT: Right, that's what I think happened. Last summer, I took an introductory sociology course at Westmore Community College. I had the official transcript sent here directly from their registrar back in August, but it's not showing up on my portal. STAFF: Ah, I see. Let me check our pending transfer credit database... Ah, yes, here it is. The transcript from Westmore did arrive, but it looks like there's a hold on it because of a missing Transfer Course Equivalency Form. Did you submit one of those before you took the class? STUDENT: A course equivalency form? I don't think I did. I thought as long as it was an accredited college, the credits would just transfer over automatically. STAFF: Unfortunately, no. To make sure a course at another institution matches our curriculum, our department heads have to review the syllabus and sign off on it. Without that signed form, the credits just sit in our queue. But don't worry, we can get this sorted out. STUDENT: Oh, good. Because the deadline to submit the final Graduation Audit Petition is... well, it's this coming Friday at five, right? I'm a bit stressed about missing it. STAFF: Yes, Friday at five is correct. Here's what you need to do. First, download the Transfer Course Equivalency Form from our website. You'll need to email it to the head of the Sociology department, along with the syllabus of the course you took at Westmore. Once they sign it to confirm it's equivalent to our Intro to Sociology, they'll email it back to you, and you can forward it to us. STUDENT: Okay, that sounds manageable. But what if the department chair doesn't get back to me by Friday? Professors are usually pretty busy. STAFF: Tell you what. Go ahead and submit your Graduation Audit Petition today online. There's a checkbox on the form that says "Pending Transfer Credit." If you check that, it alerts our office that an external transcript is being processed. That way, you won't miss the Friday deadline, even if the department chair takes a few extra days to sign off on the equivalency. STUDENT: Oh, that is such a relief! I'll fill out the petition right now. Thank you so much for your help. STAFF: You're very welcome, Tomas. Just make sure to get that equivalency form to the sociology department as soon as possible so we can finalize everything. [Q12] Why does the student go to see the registrar office administrator?

中文翻譯

旁白：聽一段學生與註冊組行政人員之間的對話。 學生：你好。嗯，我叫 Tomas。我是大四學生，計畫在今年春天畢業。我來這裡是因為我剛在上網查詢畢業學分審查時，發現上面顯示我還差三個社會科學領域的通識學分。但我很確定我已經修完了。 職員：你好，Tomas。讓我調出你的檔案……好的，我看到你的紀錄了。是的，系統顯示你目前有 117 個學分，但你需要 120 個學分才能畢業，其中缺少的 3 個學分就是社會科學。你是不是修了什麼可能沒有被計算進去的課程？ 學生：對，我想也是這樣。去年夏天，我在西莫社區大學修了一門社會學導論。我在八月份時就請那邊的註冊組直接把正式成績單寄過來了，但在我的學生系統入口網站上卻沒有顯示。 職員：啊，我明白了。讓我查一下我們的待處理學分抵免資料庫……啊，有了，在這裡。西莫大學的成績單確實寄達了，但似乎因為缺少「課程等同性認定表」而被卡住了。你在修這門課之前有提交這份表格嗎？ 學生：課程等同性認定表？我想我沒有。我以為只要是政府認可的學校，學分就會自動轉過來。 職員：很遺憾，並非如此。為了確保其他學校的課程符合我們的課程大綱，我們的系主任必須審查課程大綱並簽字同意。沒有那份簽名表格，學分就只能卡在我們的處理隊列中。不過別擔心，我們可以解決這個問題。 學生：喔，那就好。因為提交最終畢業資格審查申請的截止日期……嗯，是這週五下午五點對吧？我很擔心會錯過截止時間。 職員：沒錯，週五下午五點是正確的。以下是你需要做的事。首先，從我們的網站下載「課程等同性認定表」。你需要將這份表格連同你在西莫大學修課的課程大綱，一起透過電子郵件寄給社會學系系主任。一旦他們簽名確認該課程等同於我們的「社會學導論」，他們會把表格寄回給你，然後你再轉寄給我們。 學生：好的，聽起來還可以應付。但如果系主任在週五前沒有回覆我怎麼辦？教授通常都很忙。 職員：這樣好了。你今天就先在線上提交你的「畢業資格審查申請」。表格上有一個勾選框寫著「待處理的轉移學分」。如果你勾選該選項，系統就會通知我們辦公室有外部成績單正在處理中。這樣一來，即使系主任需要多花幾天時間來簽署等同性認定，你也不會錯過週五的截止日期。 學生：噢，這真是讓我鬆了一口氣！我現在就去填寫申請。非常感謝你的幫忙。 職員：不客氣，Tomas。只要確保盡快將那份等同性認定表寄給社會學系，這樣我們就能完成所有後續流程了。

(Shared with Q12.) [Q13] According to the administrator, why were the student's transfer credits not added to his record?

中文翻譯

（與第 12 題共用）[第 13 題] 根據行政人員的說法，為什麼這名學生的抵免學分沒有被登錄到他的學籍紀錄中？

(Shared with Q12.) [Q14] What can be inferred about the student's attitude regarding contacting the sociology department head?

中文翻譯

（與第12題共用。）[第14題] 關於學生對於聯繫社會學系主任的態度，可以推論出什麼？

(Shared with Q12.) [Q15] Why does the administrator mention the "Pending Transfer Credit" checkbox?

中文翻譯

（與第 12 題共用）[第 15 題] 為什麼行政人員會提到「待處理抵免學分」核取方塊？

(Shared with Q12.) [Replay: "Tell you what."] [Q16] Why does the administrator say this: "Tell you what."

中文翻譯

（與第 12 題共用。）[重播：「Tell you what。」] [第 16 題] 行政人員為什麼說這句話：「Tell you what。」

NARRATOR: Listen to part of a lecture in an environmental science class. PROFESSOR: When we picture glaciers, we typically imagine pristine, white expanses of ice. But if you actually walk onto a glacier, especially during the summer, you'll find it's often peppered with tiny, water-filled pits. These are called cryoconite holes. And today, we're going to explore how these miniature features play a massive role in both glacial melt rates and global carbon cycles. Let’s start with what creates them. The process begins with 'cryoconite'—a term for the dark, powdery dust that settles on ice surfaces. This dust is a complex mixture of fine mineral soil, industrial soot carried by winds from hundreds of miles away, and organic matter, including microbes. Now, because this dust is dark, it has a very low albedo. Albedo, as you may recall, is the measure of how much solar radiation a surface reflects. While clean ice reflects up to eighty percent of sunlight, cryoconite reflects very little. Consequently, the dust absorbs solar heat, melts the underlying ice, and sinks vertically, forming a cylindrical pocket of water with a layer of dark sediment at the bottom. Now, you might think these holes are scattered uniformly, but they are concentrated in specific regions. They primarily form in the accumulation zone—uh, correction, the ablation zone. That’s the lower portion of the glacier where annual ice loss from melting exceeds the accumulation of new winter snow. In the ablation zone, the winter snow melts away, exposing the older glacier ice beneath and allowing the cryoconite to gather and melt inward. STUDENT: Professor, if the dark dust keeps absorbing heat, what stops it? I mean, why don't these cryoconite holes just melt all the way through the glacier to the bedrock? PROFESSOR: That seems logical, doesn't it? If it's dark, it absorbs heat, so it should just keep boring downward. But actually, a physical constraint prevents this. As a cryoconite hole deepens, the surrounding ice walls begin to shade the sediment at the bottom. At a certain depth, the angle of the sun is such that the bottom of the hole receives very little direct solar radiation. The system reaches what’s known as a thermal equilibrium depth—typically between twenty and fifty centimeters deep—where the heat absorbed by the sediment matches the heat lost to the surrounding cold ice. So, the hole stops deepening. But here’s where it gets truly fascinating. These holes are not just physical features; they are highly active 'biophotoreactors'—a term scientists use to describe self-sustaining, biological systems powered by light. The cyanobacteria in the cryoconite sediment perform photosynthesis, capturing carbon dioxide dissolved in the water and turning it into organic matter. The cyanobacteria actually secrete a sticky substance—extracellular polymeric substances, or EPS—which binds the loose mineral dust and soot together into stable granules. This biological binding prevents the wind from easily blowing the dark material away, keeping it anchored to the ice and driving the melting process over successive years. This organic matter then feeds other microscopic life-forms, like tardigrades and rotifers, which live inside these tiny wells. In fact, researchers have found that these holes can accumulate significant amounts of organic carbon. During the late summer melt-out, when the glacier surface degrades, the water and organic material stored in these holes are released. This nutrient-rich runoff is swept downslope, where it fuels downstream ecosystems, like glacial rivers and coastal fjords. But this also has a feedback effect. As the ice melts, the dark sediment is redistributed across the glacier’s surface, further lowering the overall albedo of the ablation zone, which, in turn, accelerates the melting of the entire glacier. So, these tiny, microscopic habitats actually dictate large-scale physical changes on a regional level. [Q17] What is the lecture mainly about?

中文翻譯

旁白：請聽一段環境科學課的演講。 教授：當我們想到冰河時，通常會聯聯想到一片潔白、純淨無瑕的冰原。但如果你實際走上冰河，特別是在夏天，你會發現冰河表面常常散布著許多裝滿水的小坑洞。這些被稱為「冰塵筒（cryoconite holes）」。今天，我們將探討這些微小的特徵如何在冰河消融率和全球碳循環中扮演關鍵的角色。我們先從它們是如何形成的開始講起。這個過程始於「冰塵（cryoconite）」——這是指沉降在冰面上的深色粉末狀塵埃。這種塵埃是細微礦物土壤、由風從數百英里外吹來的工業煤煙，以及包含微生物在內的有機物的複雜混合物。由於這種塵埃顏色很深，它的反照率（albedo）非常低。大家可能還記得，反照率是衡量表面反射多少太陽輻射的指標。乾淨的冰可以反射高達百分之八十的陽光，但冰塵反射的陽光卻極少。因此，塵埃會吸收太陽熱能，融化下方的冰，並垂直向下沉降，形成一個底部有一層深色沉積物的圓柱狀水坑。你可能會以為這些坑洞是均勻分布的，但其實它們集中在特定的區域。它們主要形成於堆積區——呃，更正一下，是消融區（ablation zone）。那是冰河的較低部位，那裡每年因融化而流失的冰量超過了冬季新雪的堆積量。在消融區，冬雪融化後會露出下方較古老的冰河冰，使冰塵得以聚集並向內融化。 學生：教授，如果深色塵埃持續吸收熱能，是什麼阻止了它？我的意思是，為什麼這些冰塵筒不會直接融穿整座冰河，一直融到基岩呢？ 教授：這聽起來很合理，對吧？如果它是深色的，就會吸收熱能，所以它應該會一直向下鑽。但實際上，有一個物理限制阻止了這種情況發生。隨著冰塵筒加深，周圍的冰壁會開始遮蔽底部的沉積物。在特定深度下，由於太陽角度的關係，坑洞底部接收到的直接太陽輻射變得非常少。系統會達到所謂的「熱平衡深度（thermal equilibrium depth）」——通常在二十到五十公分深之間——此時沉積物吸收的熱能與散失到周圍冷冰中的熱能達到平衡。因此，坑洞就停止加深了。 但最迷人的地方在這裡。這些坑洞不僅僅是物理特徵，它們還是高度活躍的「生物光反應器（biophotoreactors）」——這是科學家用來描述由光能驅動、自我維持的生物系統的術語。冰塵沉積物中的藍綠菌會進行光合作用，捕獲溶解在水中的二氧化碳並將其轉化為有機物。藍綠菌實際上會分泌一種黏性物質——胞外聚合物（EPS）——它將鬆散的礦物塵埃和煤煙黏合在一起，形成穩定的顆粒。這種生物黏合作用可以防止風輕易吹走這些深色物質，將其固定在冰上，並在往後的數年中持續推動融冰過程。這些有機物接著會滋養生活在這些微型水井中的其他微觀生命，例如緩步動物（俗稱水熊蟲）和輪形動物。事實上，研究人員發現這些坑洞可以累積大量的有機碳。在夏末消融期，當冰河表面退化時，儲存在這些坑洞中的水和有機物質就會被釋放出來。這種富含養分的逕流會被沖向下游，為冰河河流和海岸峽灣等下游生態系統提供養分。但這也有一個反饋效應。隨著冰融化，深色的沉積物重新分布在冰河表面，進一步降低了消融區的整體反照率，進而加速了整座冰河的融化。因此，這些微小的顯微棲地實際上主導了區域尺度上大規模的物理變化。

(Shared with Q17.) [Q18] According to the professor, what is the role of the sticky substance secreted by cyanobacteria?

中文翻譯

（與第 17 題共用文本。）［第 18 題］根據教授的說法，藍綠菌分泌的黏性物質有何作用？

(Shared with Q17.) [Q19] Why does the professor mention the "ablation zone" of a glacier?

中文翻譯

（與第 17 題共用。）[第 19 題] 教授為什麼提到冰河的「消融區」（ablation zone）？

(Shared with Q17.) [Q20] Based on the lecture, how does the depth of a cryoconite hole regulate its own growth?

中文翻譯

（與第 17 題共用）[第 20 題] 根據這篇演講，冰塵孔的深度如何調節自身的生長？

(Shared with Q17.) [Q21] What can be inferred about the downstream ecosystems that receive runoff from glaciers in late summer?

中文翻譯

（與第 17 題共用。）[第 21 題] 關於夏末接收冰河逕流的下游生態系統，可以推論出下列何者？

(Shared with Q17.) [Replay: "That seems logical, doesn't it? If it's dark, it absorbs heat, so it should just keep boring downward."] [Q22] Why does the speaker say this:

中文翻譯

（與第 17 題共用。）[重播：「這聽起來合乎邏輯，不是嗎？如果是深色的，它就會吸收熱量，所以應該會一直向下鑽。」] [第 22 題] 講者為什麼說這句話：

NARRATOR: Listen to part of a lecture in a linguistics class. PROFESSOR: Good morning, everyone. Today, we're diving into developmental psycholinguistics, specifically how infants acquire the meanings of verbs. Now, nouns are relatively straightforward. A parent points to a cup and says, 'cup.' The child associates the sound with the physical object. But verbs—verbs are trickier. How does a toddler figure out what words like 'think,' 'give,' or 'push' actually mean when the physical world is full of simultaneous, confusing actions? For decades, the dominant view was what we call semantic bootstrapping. Semantic bootstrapping is the theory that children use their innate knowledge of semantic categories—like identifying who is performing an action, the 'agent,' and who is receiving it, the 'patient'—to map out the basic grammatical structure of their native language. So, they see a dog chasing a cat, recognize the dog as the cause or agent, and assume that 'dog' must be the subject of the sentence. But this theory has a, uh, a major blind spot. It doesn't fully explain how children learn verbs that aren't easily paired with obvious, observable physical actions, or how they distinguish between two actions happening at the exact same time. PROFESSOR: This is where syntactic bootstrapping comes in. Syntactic bootstrapping is a cognitive mechanism where children use the grammatical structure of a sentence—its syntax—to deduce the meaning of an unfamiliar verb. Instead of relying solely on what they see, they use the sentence's form as a linguistic clue. Let me give you a classic experiment that illustrates this beautifully, conducted by Letitia Naigles in 1990. Naigles took two-year-old toddlers and showed them a television screen split in two. On one side of the screen, a duck was actively pushing a bunny down into a squatting position. On the other side, both the duck and the bunny were simply waving their arms in circles, doing the same motion side by side. Now, while the toddlers watched this, they heard a voiceover. One group of children heard: 'The duck is gorping the bunny.' This is a transitive sentence structure—meaning it has a subject acting directly on an object. The other group heard: 'The duck and the bunny are gorping.' This is an intransitive structure, where there is no direct object, just two subjects performing an action together. By the way, 'gorping' is a nonsense verb, completely made up, to ensure the children had no prior knowledge of its meaning. STUDENT: Wait, so how did the researchers know what the kids actually thought 'gorping' meant? They can't exactly explain their reasoning at two years old. PROFESSOR: Excellent question, Tariq. The researchers used a preferential looking paradigm. This is a technique based on the fact that children will look longer at a visual display that matches what they are hearing. When the voiceover said, 'Find gorping!', the children who had heard 'The duck is gorping the bunny' spent significantly more time staring at the side of the screen where the duck was forcing the bunny to squat. They deduced that 'gorping' must mean the causative, transitive action—the pushing. Conversely, the children who had heard 'The duck and the bunny are gorping' looked longer at the side where both characters were waving their arms. They inferred that 'gorping' referred to the coordinated, intransitive motion. What this proves is that the toddlers didn't just look at the physical scene and guess. They used the syntactic frame—the presence or absence of a direct object—to narrow down and choose the correct meaning of the novel verb. They boot-strapped, or pulled themselves up, into the verb's meaning using their existing grasp of syntax. Of course, this doesn't mean semantic bootstrapping is useless. In fact, most modern linguists agree that children likely employ both strategies in tandem, depending on the stage of development and the complexity of the vocabulary they are encountering. [Q23] What is the lecture mainly about?

中文翻譯

旁白：聽一段語言學課程的講座片段。 教授：大家早。今天我們要深入探討發展心理語言學，特別是嬰幼兒如何習得動詞的意義。名詞相對來說比較簡單直接。家長指著杯子並說「杯子」，孩子就會將這個聲音與實體物品聯想在一起。但動詞——動詞就比較棘手了。當現實世界充滿了同時發生且令人混淆的動作時，幼兒要如何理解像「想」、「給」或「推」這些詞的真正含意？幾十年來，主流觀點是我們所說的「語意引導」（semantic bootstrapping）。語意引導理論認為，兒童利用其天生的語意類別知識——例如辨識誰是執行動作的「施事者」（agent）以及誰是接受動作的「受事者」（patient）——來構建其母語的基本語法結構。因此，他們看到狗在追貓，會將狗識別為起因或施事者，並假設「狗」一定是句子中的主詞。但這個理論有一個，呃，很大的盲點。它無法完全解釋兒童如何學習那些不易與明顯、可觀察的物理動作相匹配的動詞，也無法解釋他們如何區分同時發生的兩個動作。 教授：這就是「句法引導」（syntactic bootstrapping）派上用場的地方。句法引導是一種認知機制，兒童利用句子的語法結構（即其句法）來推導未知動詞的意義。他們不單單依賴所看到的畫面，而是將句子的結構形式作為語言線索。讓我舉一個萊蒂西亞·內格斯（Letitia Naigles）在1990年進行的經典實驗，這非常漂亮地說明了這一點。內格斯找來兩歲的幼兒，讓他們看一個分成左右兩邊的電視螢幕。螢幕的一側，一隻鴨子正主動把一隻兔子推到蹲下的姿勢。在另一側，鴨子和兔子只是並排揮舞著手臂畫圈，做著同樣的動作。就在幼兒觀看這些畫面時，他們聽到了旁白。其中一組孩子聽到的是：「The duck is gorping the bunny。」這是一個及物句型結構——意味著它有一個主詞直接對受詞施加動作。另一組聽到的是：「The duck and the bunny are gorping。」這是一個不及物結構，其中沒有直接受詞，只有兩個主詞一起進行一項動作。順帶一提，「gorping」是一個無意義的動詞，完全是杜撰出來的，以確保孩子們先前對其含意一無所知。 學生：等等，那研究人員怎麼知道孩子們實際上認為「gorping」是什麼意思？他們兩歲的時候根本無法清楚解釋自己的推理過程。 教授：問得好，塔里克（Tariq）。研究人員採用了「偏好注視典範」（preferential looking paradigm）。這項技術是基於一個事實：兒童會對與他們所聽到的內容相符的視覺畫面注視更久。當旁白說「Find gorping!」時，那些聽過「The duck is gorping the bunny」的孩子，盯著鴨子強迫兔子蹲下那一側螢幕的時間明顯長得多。他們推導出「gorping」一定是指具有因果關係的及物動作——也就是「推」的動作。相反地，聽過「The duck and the bunny are gorping」的孩子，注視兩隻角色都在揮舞手臂那一側的時間較長。他們推論「gorping」指的是協同的不及物動作。這證明了幼兒不只是看著物理場景瞎猜。他們利用了句法結構（是否存在直接受詞）來縮小範圍，並選擇了這個新動詞的正確含意。他們利用自己既有的句法掌握能力，「自我引導」（boot-strapped）或拉了自己一把，從而理解了動詞的含意。當然，這並不意味著語意引導毫無用處。事實上，大多數現代語言學家都同意，兒童很可能會根據發展階段和所接觸詞彙的複雜程度，同時搭配使用這兩種策略。

(Shared with Q23.) [Q24] According to the professor, what is a limitation of semantic bootstrapping?

中文翻譯

（與第 23 題共用）[第 24 題] 根據教授的說法，語意靴帶假說的限制是什麼？

(Shared with Q23.) [Q25] In the experiment described by the professor, what did the children see on the split screen? Choose 2 answers.

中文翻譯

（與第 23 題共用。）[第 25 題] 在教授所描述的實驗中，孩子們在分割螢幕上看到了什麼？請選出2個答案。

(Shared with Q23.) [Q26] Why does the professor mention the preferential looking paradigm?

中文翻譯

（與第 23 題共用音檔。）[第 26 題] 教授為什麼提到「偏好注視典範」？

(Shared with Q23.) [Q27] What does the professor imply about the relationship between semantic bootstrapping and syntactic bootstrapping?

中文翻譯

（與第 23 題共用）[第 27 題] 關於語意引導（semantic bootstrapping）與句法引導（syntactic bootstrapping）之間的關係，教授暗示了什麼？

(Shared with Q23.) [Replay: "By the way, 'gorping' is a nonsense verb, completely made up, to ensure the children had no prior knowledge of its meaning."] [Q28] Why does the speaker say this:

中文翻譯

（與第 23 題共用。）［重播：「順帶一提，'gorping' 是一個毫無意義的動詞，完全是編造出來的，目的是為了確保孩子們先前對這個詞的意思一無所知。」］