TOEFL TPO 71 Writing Task 1 Sample: Summarize the points made in the lecture, being sure to explain how they challenge the specific theories presented in the reading passage.

1.子项得分 任务完成度: 4 组织: 3 连贯与衔接: 3 语言使用: 3

2.预估分数

22. 3.任务完成度

你的文章基本上完成了任务要求，总结了听力中提到的观点并对阅读中的理论进行了质疑。但是，你可以更详细地解释听力中的观点以及它们如何具体挑战阅读材料中的理论。此外，注意避免在文章中出现拼写错误。

例子1： 原文：The fossil of the dinasaur contriadicts this evidence. 修改：The fossil of the dinosaur contradicts this evidence, as it shows a small and underdeveloped brain cavity next to the crest.

例子2： 原文：However, the evidence shows that only a small number of lambeosaurs have it, indicating the flaw of this theory. 修改：However, the evidence shows that only one lambeosaur species has been found with a highly developed inner ear, which is not enough to support this theory for all lambeosaur species.

4.文章结构与组织 文章的结构和组织方面还有待改进。虽然你使用了引言、正文和结论，但段落划分不够明确，缺乏清晰的过渡句。为了使文章更加连贯和有逻辑，请在每个段落之间添加过渡句，并确保每个段落都集中讨论一个特定的观点。

例子1： 添加过渡句：首先，让我们来看一下关于增强嗅觉功能的理论。 修改后的段落：首先，让我们来看一下关于增强嗅觉功能的理论。作者认为，鼻腔中丰富的血管使得这种功能成为可能。然而，演讲者质疑这一理论，指出在具有强烈嗅觉功能的动物中，与嗅觉器官相邻的大脑区域往往发育良好。但恐龙化石显示出与冠骨相邻的大脑腔较小且发育不良。

例子2： 添加过渡句：接下来，我们讨论关于冠骨用于降低体温的理论。 修改后的段落：接下来，我们讨论关于冠骨用于降低体温的理论。作者提出了一个类似于剑龙的例子，即冠骨可以帮助防止过热。然而，演讲者反驳了这一观点，并强调了剑龙和赖氏龙之间的差异。虽然剑龙身上有许多骨质板，但赖氏龙头部的冠骨相对较小，这意味着降低温度的能力非常有限。

5. 语法批改

The passage introducesnintroduces(misspelling) the topic of lambeosaurs[No Replacement Word Found](misspelling), More specifically, the author proposes 3 theories that speculate the function of labeosaursallosaurs(misspelling)'(Unpaired braces, brackets, quotation marks and similar symbols) crest on the top of their heads. The speaker casts doubt on each theoriestheory('every/each' + SINGULAR).

The author starts by stating that the crest is used for enhancing the dinosaurs' sense of smell because of vastthe vast(This rule identifies whether the article 'the' is missing in a sentence.) blood vessels contained. The speaker challenges this theory, pointing out the lack of brain nerve in the crest. Most of timeMost time(all/most/some (of) + noun), the organ that functions as smelling is distributed well-development brain nerves, in order to communicate the information and signal received. However, The fossil of the dinasaurdinosaur(misspelling) contriadictscontradicts(misspelling) this evidence.

The author further proposes the theory thatthat,(This rule identifies whether commas are missing in a sentence.) similar to stegosaursstegosaurus(misspelling), the crest represents the use of preventing heat. Nevertheless, the speaker disputes this argument, emphasizing the distinct between these two dinosaurs. While the bony crest on the stegosaursstegosaurus(misspelling) is widely distributed on the body, the crest on the head of lambeosaur[No Replacement Word Found](misspelling) is relatively small, which means the ability of lowering the temperature is extremely weak.

Finally, The author claims that the crest can be used as a tool to make sound, in order to communicate with others. The speaker, again, points out the flaws, stating that if the crest is functioned as a communicating tools, then all species of lambeosaur[No Replacement Word Found](misspelling) will be equipped with this organ. However, the evidence shows that only a small number ofa few(a small number of (a few)) lambeosaurs[No Replacement Word Found](misspelling) have it, indicating the flaw of this theory.

Section Title: 6.文章修订

The passage introduces the topic of lambeosaurs, specifically discussing three theories regarding the function of their crests. However, the speaker in the lecture casts doubt on each of these theories.

Firstly, the author suggests that the crest's primary purpose was to enhance the dinosaurs' sense of smell due to the presence of numerous blood vessels. The speaker challenges this theory by highlighting that a well-developed brain area with nerves is typically found in animals with a strong sense of smell. Contrary to this, fossils of lambeosaur skulls reveal a small and underdeveloped brain cavity near the crest, making it unlikely that it served to improve their sense of smell.

Secondly, the author proposes that like stegosaurs, lambeosaurs' crests functioned to prevent overheating by increasing body surface area for heat dissipation. The speaker disputes this argument by emphasizing differences between these two dinosaurs. Stegosaurs have multiple bony plates distributed across their bodies, whereas lambeosaurs only possess a single crest on their heads. This limited additional surface area would not provide any significant advantage in cooling.

Lastly, the author posits that lambeosaurs used their crests to produce sounds for communication with others. The speaker points out flaws in this theory as well; if all lambeosaur species used their crests for communication, they should all have a good sense of hearing. However, evidence supporting good hearing has only been found in one lambeosaur species so far. Therefore, unless further evidence from other species is discovered, skepticism towards this theory should remain. (251 words)

The passage introducesn introduces the topic of lambeosaurs, More specifically, the author proposes 3 specifically discussing three theories that speculate regarding the function of labeosaurs' crest on the top of their heads. The their crests (the original text used "labeosaurs" which is a typo). However, the speaker in the lecture casts doubt on each theories. of these theories (clarified the sentence structure and made it more concise).

The Firstly, the author starts by stating that the crest is used for enhancing suggests that the crest's primary purpose was to enhance the dinosaurs' sense of smell because of vast due to the presence of numerous blood vessels contained. (rephrased for clarity). The speaker challenges this theory, pointing out the lack of theory by highlighting that a well-developed brain nerve in the crest. Most of time, the organ that functions as smelling area with nerves is distributed well-development typically found in animals with a strong sense of smell (added explanation for why this point is relevant). Contrary to this, fossils of lambeosaur skulls reveal a small and underdeveloped brain nerves, in order to communicate the information cavity near the crest, making it unlikely that it served to improve their sense of smell (clarified and signal received. However, restructured sentence).

Secondly, the author proposes that like stegosaurs, lambeosaurs' crests functioned to prevent overheating by increasing body surface area for heat dissipation (rephrased for clarity). The fossil of the dinasaur contriadicts this evidence. ¶ The author further proposes the theory that similar to stegosaurs, the crest represents the use of preventing heat. Nevertheless, the speaker disputes this argument, argument by emphasizing the distinct differences between these two dinosaurs. While the dinosaurs (corrected "distinct" to "differences"). Stegosaurs have multiple bony plates distributed across their bodies, whereas lambeosaurs only possess a single crest on the stegosaurs is widely distributed on the body, the crest on the head of lambeosaur is relatively small, which means the ability of lowering the temperature is extremely weak. their heads. This limited additional surface area would not provide any significant advantage in cooling (restructured sentence for better flow).

Finally, Lastly, the author posits that lambeosaurs used their crests to produce sounds for communication with others (rephrased for clarity). The author claims that the crest can be used as a tool to make sound, in order to communicate with others. The speaker, again, speaker points out the flaws, stating that flaws in this theory as well; if the crest all lambeosaur species used their crests for communication, they should all have a good sense of hearing (clarified reasoning). However, evidence supporting good hearing has only been found in one lambeosaur species so far. Therefore, unless further evidence from other species is functioned as a communicating tools, then all species of lambeosaur will be equipped with this organ. However, the evidence shows that only a small number of lambeosaurs have it, indicating the flaw of this theory.discovered, skepticism towards this theory should remain (restructured and clarified the conclusion).

8. Mind Map

9. Keywords

1.子项得分 Task fulfillment: 4 Organization: 3 Coherence and Cohesion: 3 Language Use: 3

2.预估分数 Estimated Score: 22

3.任务完成度 虽然你的文章涵盖了阅读和听力材料中的主要观点，但在解释这些观点时，你需要更详细地说明它们是如何挑战阅读材料中提出的理论的。此外，确保你使用了足够的细节和例子来支持你的论点。

Example 1: Instead of "However, the lecturer refutes that this fossils examination have nothing to do with the support of Lambeosaurs's crests function.", you could write "The lecturer challenges this theory by pointing out that animals with a strong sense of smell usually have a well-developed brain area next to the organ of smell, but the Lambeosaurs' brain structure from its fossils is small and underdeveloped."

Example 2: Instead of "Nevertheless, the lecturer in the lecturer rebuts that the differences between Lambeosaurs and stegosaurs are crucialy important and can never be overlooked for evaluate the surface area.", you could write "The lecturer counters this argument by highlighting the significant differences between Lambeosaurs and stegosaurs in terms of their body surface area, which makes it unlikely that Lambeosaurs' crests were effective in cooling their body temperature."

4.文章结构与组织 Your essay has a clear structure with an introduction, body, and conclusion. However, there is room for improvement in terms of organization and coherence. Make sure each paragraph focuses on a specific point and supports it with details from both reading and listening materials. Also, use clear transitions between ideas and paragraphs to enhance the flow of your essay.

Example 1: In the introduction, instead of "While the lecutrer in the lecture express an opposite opinion that none of these speculations are clear enough to be the real one.", you could write "The lecturer, on the other hand, casts doubt on each of these theories by presenting counterarguments."

Example 2: For better coherence and cohesion, you could use transition words or phrases like "Firstly," "Secondly," and "Lastly" at the beginning of each paragraph discussing a different theory. This will help guide your reader through your essay and make it easier to follow your arguments.

5. 语法批改

The author in the reading holds that there exist three possible functions of Lambeosaurs[No Replacement Word Found](misspelling)' crests, whose shape are varied from species to species. While the lecutrerlecturer(misspelling) in the lecture express an opposite opinion that none of these speculations are clear enough to be the real one.

To begin with, the author claims that the primary purpose of Lambeosaurs[No Replacement Word Found](misspelling)'s crests are to improve their sense of smell. Because the examination of its fossils show that the crests contained several blood vessels have the similar structure with modern animals' nose bones. However, the lecturer refutes that this fossilsfossils'(Possessive apostrophe error) examination have nothing to do with the support of Lambeosaurs's crests function. For the reason that those animals that have well-developed brain structure often have good sense of smell, but Lambeosaurs' brain sructurestructure(misspelling) from its fossils are small and not developed which not fit the prerequesiteprerequisite(misspelling) of the comparationcompilation(misspelling).

Moreover, the author believes that it is possible that Lambeosaurs's crests are utilized to cooling their body temperature by increase the surface area and enable body heat elimitlimit(misspelling) rapidly. Nevertheless, the lecturer in the lecturer rebuts that the differences between Lambeosaurs[No Replacement Word Found](misspelling) and stegosaursstegosaurus(misspelling) are crucialycrucial(misspelling) important and can never be overlooked forto(This rule identifies wrong preposition usage.) evaluate the surface area. The latter have plantyplant(misspelling) of crests, so when all of theall the(all of the (all the)) surface area added up, it will become large. However, the Former only have one crests, which are not effective to lower the body temperature.

Finally, the author puts forward that Lambeosaurs[No Replacement Word Found](misspelling)' crests function can be also expected to produce sounds for them to communicate with others. Instead, the lecturer in the lecture retorts that if the animal have special skill to make sounds, it must have good hearing ability. But obviously, only one kind of Lambeosaur[No Replacement Word Found](misspelling) are proved haveto have(This rule identifies whether the preposition 'to' is missing in a sentence.) good hearing ability and no more evidences show that other species have this capacity as well. So it is not reliable to make this conclutionconclusion(misspelling) about sounds making.

Section Title: 6.文章修订

The reading passage presents three possible functions of the Lambeosaurs' crests, which vary in shape from species to species. In contrast, the lecturer in the lecture argues that none of these theories are convincing enough to determine the true purpose of these crests.

Firstly, the author posits that the primary function of Lambeosaurs' crests was to enhance their sense of smell, as examinations of their fossils reveal a similar structure with blood vessels found in modern animals' nose bones. However, the lecturer disputes this claim by stating that a well-developed brain structure is typically associated with a strong sense of smell. The fossils of Lambeosaurs show small and underdeveloped brain structures, which do not support this prerequisite for comparison.

Secondly, the author suggests that Lambeosaurs' crests could have been used to regulate body temperature by increasing surface area and allowing body heat to dissipate more rapidly. The lecturer refutes this idea by highlighting crucial differences between Lambeosaurs and Stegosaurs. While Stegosaurs possess numerous bony plates along their backs, providing a large surface area for cooling, Lambeosaurs only have one crest which would not be effective in lowering body temperature.

Lastly, the author proposes that Lambeosaurs' crests might have served as sound-producing structures for communication purposes. The lecturer counters this theory by asserting that if an animal possesses a specialized ability to produce sounds, it must also have good hearing capabilities. However, evidence supporting good hearing abilities has only been found in one species of Lambeosaur; thus, it is not reliable to conclude that sound production was a primary function of their crests without further evidence from other species. (271 words)

The author in the reading holds that there exist passage presents three possible functions of the Lambeosaurs' crests, whose which vary in shape are varied from species to species. While the lecutrer species (clarified the sentence structure and removed unnecessary words). In contrast, the lecturer in the lecture express an opposite opinion argues that none of these speculations theories are clear convincing enough to be the real one. determine the true purpose of these crests (rephrased for clarity and conciseness).

To begin with, Firstly, the author claims posits that the primary purpose of Lambeosaurs's crests are to improve function of Lambeosaurs' crests was to enhance their sense of smell. Because the examination of its smell (rephrased for clarity), as examinations of their fossils show that the crests contained several blood vessels have the reveal a similar structure with blood vessels found in modern animals' nose bones. However, the lecturer refutes that disputes this fossils examination have nothing to do with the support of Lambeosaurs's crests function. For the reason that those animals that have claim by stating that a well-developed brain structure often is typically associated with a strong sense of smell (improved sentence flow). The fossils of Lambeosaurs show small and underdeveloped brain structures, which do not support this prerequisite for comparison (clarified meaning).

Secondly, the author suggests that Lambeosaurs' crests could have good sense of smell, but Lambeosaurs' brain sructure from its fossils are small and not developed which not fit the prerequesite of the comparation. ¶ Moreover, the author believes that it is possible that Lambeosaurs's crests are utilized to cooling their been used to regulate body temperature by increase the increasing surface area and enable allowing body heat elimit rapidly. Nevertheless, the to dissipate more rapidly (rephrased for clarity). The lecturer in the lecturer rebuts that the refutes this idea by highlighting crucial differences between Lambeosaurs and stegosaurs are crucialy important and can never be overlooked for evaluate the surface area. The latter have planty of crests, so when all of the Stegosaurs (corrected spelling). While Stegosaurs possess numerous bony plates along their backs, providing a large surface area added up, it will become large. However, the Former for cooling, Lambeosaurs only have one crests, crest which are would not be effective to lower the in lowering body temperature. temperature (improved sentence flow).

Finally, Lastly, the author puts forward proposes that Lambeosaurs' crests function can be also expected might have served as sound-producing structures for communication purposes (rephrased for clarity). The lecturer counters this theory by asserting that if an animal possesses a specialized ability to produce sounds for them to communicate with others. Instead, the lecturer in the lecture retorts that if the animal have special skill to make sounds, it must also have good hearing ability. But obviously, only one kind of Lambeosaur are proved have capabilities (improved sentence flow). However, evidence supporting good hearing ability and no more evidences show that other abilities has only been found in one species have this capacity as well. So of Lambeosaur; thus, it is not reliable to make this conclution about sounds making.conclude that sound production was a primary function of their crests without further evidence from other species (clarified meaning and improved sentence flow).

8. Mind Map

• Introduction

  • Lambeosaurs' crests
  • Reading passage vs. lecture

• Function 1: Enhance sense of smell

  • Reading passage: Similar structure to modern animals' nose bones
  • Lecture: Small and underdeveloped brain structures, not supporting strong sense of smell

• Function 2: Regulate body temperature

  • Reading passage: Increased surface area for heat dissipation
  • Lecture: Comparison to Stegosaurs, one crest not effective for cooling

• Function 3: Sound production for communication

  • Reading passage: Sound-producing structures in crests
  • Lecture: Good hearing abilities only found in one species, not reliable evidence

9. Keywords

Section Title: 6.文章修订

The reading passage presents three possible functions of the Lambeosaurs' crests, which vary in shape from species to species. In contrast, the lecturer in the lecture argues that none of these theories are convincing enough to determine the true purpose of these crests.

Firstly, the author posits that the primary function of Lambeosaurs' crests was to enhance their sense of smell, as examinations of their fossils reveal a similar structure with blood vessels found in modern animals' nose bones. However, the lecturer disputes this claim by stating that a well-developed brain structure is typically associated with a strong sense of smell. The fossils of Lambeosaurs show small and underdeveloped brain structures, which do not support this prerequisite for comparison.

Secondly, the author suggests that Lambeosaurs' crests could have been used to regulate body temperature by increasing surface area and allowing body heat to dissipate more rapidly. The lecturer refutes this idea by highlighting crucial differences between Lambeosaurs and Stegosaurs. While Stegosaurs possess numerous bony plates along their backs, providing a large surface area for cooling, Lambeosaurs only have one crest which would not be effective in lowering body temperature.

Lastly, the author proposes that Lambeosaurs' crests might have served as sound-producing structures for communication purposes. The lecturer counters this theory by asserting that if an animal possesses a specialized ability to produce sounds, it must also have good hearing capabilities. However, evidence supporting good hearing abilities has only been found in one species of Lambeosaur; thus, it is not reliable to conclude that sound production was a primary function of their crests without further evidence from other species.

1.子项得分 Task fulfillment: 4 Organization: 4 Coherence and Cohesion: 4 Language Use: 3

2.预估分数 Estimated Score: 25

3.任务完成度 整体来说，你的文章在任务完成度方面表现不错，但仍有一些可以改进的地方。首先，在论述教授对阅读材料中的三个理论提出质疑时，可以更具体地描述教授所提供的证据。此外，在文章结尾部分，可以总结一下教授对阅读材料中理论的质疑，并指出这些质疑使得阅读材料中的观点变得不那么可靠。

Example 1: Instead of "But the structure is so small that it only can contain small and undeveloped brains.", you could write "However, the professor argues that fossils of lambeosaur skulls show that the brain cavity next to the crest was small and underdeveloped, which indicates that the crest was not used to improve their sense of smell."

Example 2: At the end of your essay, you could add a conclusion like this: "In conclusion, the professor casts doubt on each of the theories presented in the reading passage by providing counterarguments and evidence, which weakens the credibility of these theories regarding lambeosaur crests' functions."

4.文章结构与组织 Your essay has a clear structure with an introduction, body paragraphs, and a conclusion. However, there is room for improvement in terms of organization and transitions between ideas. Make sure to use appropriate transition words and phrases to connect your ideas and paragraphs more smoothly.

Example 1: Instead of "Therefore, he points out that this theory is not reasonable as the reading suggested.", you could write "Thus, the professor contends that the sense of smell theory is not as reasonable as the reading suggests."

Example 2: In your second body paragraph, you could add a transition like this: "Moving on to the cooling function theory, the reading highlights that lambeosaur's crest can help them lower body temperature. However, the professor points out some crucial differences between lambeosaurs and stegosaurs that challenge this idea."

5. 语法批改

In the lecture, the professor questions the reading’s assertion regarding sense of smell, cooling and making sounds, which are three theories about functions of lambeosaur[No Replacement Word Found](misspelling) crests. He presents three main points that cast doubt on the arguments put forth in the reading. Firstly, the lecture challenges sense of smell. According to the reading, examination of fossils shows the crest involved many blood vessels like modern animals have so they can enhance the sense of smell. However, the professor argues that if lambeosaur[No Replacement Word Found](misspelling) want to improve the ability of smell, they need to have a well-developed brain with many nerves which is always big. But the structure is so small that it only can contain small and undeveloped brains. Therefore, he points out that this theory is not reasonable as the reading suggested. Secondly, the lecture rebuts the function of cooling. The reading highlights that lambeosaur[No Replacement Word Found](misspelling)’s crest can help them to lower body temperature. In the meanwhile, the stegosaurstegosauri(misspelling) also has familiar ability of cooling. The professor points out that although stegosaursstegosaurus(misspelling) have many crests and, and(comma between independent clauses) they can be gathered to cooling body, lambeosaurs[No Replacement Word Found](misspelling) only have one crest which is so small. As a result, crest in lambeosaurs[No Replacement Word Found](misspelling) cannot coolingcool(Non-infinitive verb after modal verbs) bodies. Therefore, he points out that cooling ability is not the actual function of crest like the reading said. Thirdly, the lecture cast doubt on making sounds. The reading asserts that lambeosaurs[No Replacement Word Found](misspelling) force air through the crest and, and(comma between independent clauses) they also have a highly developed ears to hear sounds. Nonetheless, the professor argues that it’s true that lambeosaurs[No Replacement Word Found](misspelling) communicate with others by sounds. But there is only one species of lambeosaurs[No Replacement Word Found](misspelling) have a good ability of hearing. If scientists want to prove this function of crest, they need to find evidences like other species also have a good ability of hearing. Therefore, the professor notes that it is not reliable to confirm the function of making sounds.

Section Title: 6.文章修订

In the lecture, the professor questions the reading's assertion regarding the functions of lambeosaur crests, specifically focusing on sense of smell, cooling, and making sounds. He presents three main points that cast doubt on the arguments put forth in the reading.

Firstly, the lecture challenges the sense of smell theory. According to the reading, examination of fossils shows that lambeosaur crests contained many blood vessels similar to those found in modern animals with a highly developed sense of smell. However, the professor argues that for lambeosaurs to have an enhanced sense of smell, they would need a well-developed brain with many nerves and a larger structure. In contrast, lambeosaur brain cavities appear small and underdeveloped. Therefore, he points out that this theory is not as reasonable as suggested by the reading.

Secondly, the lecture rebuts the cooling function theory. The reading highlights that lambeosaur crests could help lower body temperature and compares them to stegosaurs' cooling abilities through their bony plates. The professor points out that while stegosaurs have many plates that collectively provide a large surface area for cooling, lambeosaurs only have one small crest which would not offer any significant advantage in temperature regulation. Therefore, he contends that cooling is not likely to be an actual function of lambeosaur crests as stated in the reading.

Thirdly, the lecture casts doubt on sound production as a function of lambeosaur crests. The reading asserts that these dinosaurs could force air through their crests to make sounds and had highly developed ears for hearing these sounds. Nonetheless, the professor argues that only one species of lambeosaurs has been found with evidence of good hearing abilities so far. To support this theory further, scientists would need to find additional evidence from other species demonstrating similar auditory capabilities. Therefore, according to the professor's analysis, it is not yet reliable to confirm sound production as a function of lambeosaur crests. (319 words)

In the lecture, the professor questions the reading’s reading's assertion regarding the functions of lambeosaur crests, specifically focusing on sense of smell, cooling cooling, and making sounds, which are three sounds (Changed "three theories about functions of lambeosaur crests. about" to "specifically focusing on" for clarity). He presents three main points that cast doubt on the arguments put forth in the reading.

Firstly, the lecture challenges the sense of smell. smell theory (Changed "sense of smell" to "sense of smell theory" for clarity). According to the reading, examination of fossils shows the crest involved that lambeosaur crests contained many blood vessels like similar to those found in modern animals have so they can enhance the with a highly developed sense of smell. smell (Reworded sentence for better flow and clarity). However, the professor argues that if lambeosaur want to improve the ability for lambeosaurs to have an enhanced sense of smell, they would need to have a well-developed brain with many nerves which is always big. But the structure is so and a larger structure. In contrast, lambeosaur brain cavities appear small that it only can contain small and undeveloped brains. and underdeveloped (Reworded sentence for better flow and clarity). Therefore, he points out that this theory is not as reasonable as the reading suggested. suggested by the reading.

Secondly, the lecture rebuts the function of cooling. cooling function theory (Changed "the function of cooling" to "the cooling function theory" for clarity). The reading highlights that lambeosaur’s crest can lambeosaur crests could help them to lower body temperature. In the meanwhile, the stegosaur also has familiar ability of cooling. temperature and compares them to stegosaurs' cooling abilities through their bony plates. The professor points out that although while stegosaurs have many crests and they can be gathered to cooling body, plates that collectively provide a large surface area for cooling, lambeosaurs only have one small crest which is so small. As a result, crest would not offer any significant advantage in lambeosaurs cannot cooling bodies. temperature regulation (Reworded sentence for better flow and clarity). Therefore, he points out contends that cooling ability is not the likely to be an actual function of crest like the reading said. lambeosaur crests as stated in the reading.

Thirdly, the lecture cast casts doubt on making sounds. sound production as a function of lambeosaur crests (Changed "making sounds" to "sound production as a function" for clarity). The reading asserts that lambeosaurs these dinosaurs could force air through the crest and they also have a their crests to make sounds and had highly developed ears to hear for hearing these sounds. Nonetheless, the professor argues that it’s true that lambeosaurs communicate with others by sounds. But there is only one species of lambeosaurs have a has been found with evidence of good ability of hearing. If hearing abilities so far (Reworded sentence for better flow and clarity). To support this theory further, scientists want to prove this function of crest, they would need to find evidences like additional evidence from other species also have a good ability of hearing. demonstrating similar auditory capabilities. Therefore, the professor notes that according to the professor's analysis, it is not yet reliable to confirm the function of making sounds.sound production as a function of lambeosaur crests.

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8. Mind Map

- Essay Structure
    - Introduction
        - Lambeosaur crests
        - Functions: sense of smell, cooling, making sounds
    - Sense of Smell Theory
        - Reading: blood vessels in crests
        - Lecture: small brain cavities, underdeveloped structure
    - Cooling Function Theory
        - Reading: comparison to stegosaurs' bony plates
        - Lecture: small crest surface area, no significant advantage
    - Sound Production Theory
        - Reading: air forced through crests, highly developed ears
        - Lecture: only one species with good hearing abilities, need more evidence from other species

9. Keywords