TOEFL TPO 71 Speaking Task 3 Sample: Explain the concept of masking and how it affects orca whales

1.子项得分 Delivery: 3 Language Use: 3 Topic Development: 3

2.预估分数

23. 3.表达

从表达方面来看，这位同学的回答相对清晰，但在某些地方可能需要稍作改进。例如，可以尝试提高发音的准确性，并保持一致的语速。此外，适当减少停顿也有助于提高整体表达效果。建议多加练习，以提高口语表达能力。

4.话题发展 从话题发展的角度来看，这位同学的回答基本上符合要求，但仍有改进空间。可以尝试更清晰地阐述掩蔽现象对虎鲸的影响，并给出更具体的例子。此外，在组织结构上可以更加紧密，以便让听众更容易理解。建议多加练习和思考，以便在考试中更好地展示自己的话题发展能力。

5.语言使用

Original Answer: While the passage explains masking, which is a phenomenon that another sound covers the animal's sound, the professor in the lecture explains one example to elucidate it. He states that a kind of wild species would depend on special sounds from their echo to search to identify the local location, size, objectives, such as for food, and the surrounding, such as a clicking sound would lead the whale for a meal. The scientists found that when the broad level of sound increases, it blocks the whale to search for food and information.

Corrected Answer: While the passage explains maskingthe concept of masking, which is a phenomenon thatwhere another sound covers the animal's soundan animal's sounds, the professor in the lecture provides an example to elucidate it. He states that a kind of wild speciesorca whales depend on special sounds from their echoecholocation to search to identifyidentify and locate objects such as food in their surroundings. A clicking sound would lead the whale to its next meal. The scientists found that when the broad level of sound increasesambient noise level increases, it hinders the whale's ability to search for food and gather information.

(将“masking”改为“the concept of masking”，使表达更清晰。将“that”改为“where”，使句子结构更自然。将“the animal's sound”改为“an animal's sounds”，使表达更准确。将“a kind of wild species”改为“orca whales”，使表达更具体。将“echo”改为“echolocation”，使词汇更准确。将“search to identify”改为“identify and locate”，使表达更流畅。将“broad level of sound increases”改为“ambient noise level increases”，使表达更专业。)

Revised Answer (140 words): The passage introduces the concept of masking, where one sound covers an animal's sounds, making it difficult for them to transmit or receive essential signals. The professor in the lecture provides an example involving orca whales, which rely on echolocation to identify and locate objects such as food in their surroundings. They produce clicking sounds, and the echoes from these sounds help guide them to their next meal. Scientists conducted a study on orca whales' habitat off the west coast of Canada, focusing on noise from boats sharing the same waterway. They discovered that when the ambient noise level increased, it hindered the whales' ability to search for food and gather information. As a result, the area in which the whales searched for food shrank by up to 20%, indicating that their echolocation systems were not functioning optimally due to masking.

6.思维导图

• Masking

  • Concept
  • Animal sounds

• Orca Whales

  • Echolocation
    • Clicking sounds
    • Identifying and locating objects
  • Study
    • West coast of Canada
    • Boat noise
    • Ambient noise level increase

• Impact on Whales

  • Hindered search for food
  • Reduced area for searching (20%)
  • Echolocation system not functioning optimally

7.关键词

1.子项得分 Delivery: 3 Language Use: 3 Topic Development: 3

2.预估分数

23. 3.表达

从表达方面来看，发言者的语言流利，语速适中，偶尔有停顿。为了提高发言质量，建议发言者在练习时注意发音准确性，并尝试减少不必要的停顿。

4.话题发展 从话题发展方面来看，发言者的回答内容连贯、组织良好，观点之间关系明确，并且提供了足够的支持和例子。为了进一步提高话题发展水平，建议发言者在练习时尝试更深入地分析和解释观点，以便更充分地展示对问题的理解。

5.语言使用

Original Answer: Masking occurs when the environmental sound is louder than the sound that the animal uses. Masking occurs when environmental sounds are louder than those used by animals. (原句中的表达较为拗口，修改后更自然流畅) The professor uses a certain kind of whale, for example, to illustrate this. The professor provides an example of orca whales to illustrate this concept. (修改后的句子更简洁明了) A large whale called orcas uses its ecosystem to find the location and search for food. Orcas, a large whale species, use their echolocation system to locate and search for food. (修正了原句中的用词错误，使句子更准确) A group of scientists studied the noise of boats, and they turned out that the noise of boats can change the behavior of this kind of whales. Scientists studied boat noise and discovered that it can alter the behavior of these whales. (简化了原句，使其更自然流畅) It can block the ecosystem of the whales to a shorter distance. It can reduce the effective range of the whales' echolocation system. (修正了原句中的用词错误，使句子更准确) The area that the whales can use decreased 20%, and their ecosystems are not able to function fully. The area in which the whales can search for food decreases by 20%, and their echolocation systems cannot function optimally. (修改后的句子更准确地描述了问题) They can't gather more information. They are unable to gather sufficient information about their surroundings. (修改后的句子更自然流畅)

Revised Answer (140 words): Masking occurs when environmental sounds are louder than those used by animals. The professor provides an example of orca whales to illustrate this concept. Orcas, a large whale species, use their echolocation system to locate and search for food. Scientists studied boat noise and discovered that it can alter the behavior of these whales. It can reduce the effective range of the whales' echolocation system. The area in which the whales can search for food decreases by 20%, and their echolocation systems cannot function optimally. They are unable to gather sufficient information about their surroundings. As a result, masking poses a significant threat to the survival of orca whales, as it impairs their ability to communicate, locate food, and navigate their environment effectively.

6.思维导图

• Masking

  • Environmental sounds
  • Animal sounds

• Orca whales

  • Echolocation system
  • Food search

• Boat noise

  • Altered behavior
  • Reduced echolocation range

• Impact on survival

  • Communication impairment
  • Navigation difficulties

7.关键词

1.子项得分 Delivery: 3 Language Use: 3 Topic Development: 3

2.预估分数

23. 3.表达

回答中的发音大部分清晰，但在某些地方可能需要稍作改进。为了提高发音，请注意练习发音和语调。此外，尝试保持一致的语速，避免在不必要的地方停顿。

4.话题发展 回答内容基本上是连贯和组织良好的，但可以进一步改进。首先，请确保正确使用专业术语，例如“Orchids”应改为“orca whales”。其次，在描述实验时，请注意提供更详细的信息，以便更好地支持你的观点。例如，可以提到加拿大西海岸的实验地点以及研究人员如何观察到鲸鱼觅食区域缩小了20%。最后，在总结时，请确保清楚地阐述主要观点，并简要概括实验结果对鲸鱼生活的影响。

5.语言使用

Original: Masking refers to the result that when environmental sounds are louder than sounds the animals uses. And the professor used the whales named Orchidsorcas (改为正确的鲸鱼名称) for example. This kind of whale would use a special ecosystemecho system (修正为正确的词汇) to locate food in their surroundings. And they will generate a sound of clicking. And this will lead them to find the locations of the food. And the scientists used the noises from boats to test if there will be possible change of the whales when the sounds or noise of the boats are louder. And they found that if the sounds are blocking the transmission of the clicking sound of the whale, the area they find food are getting smaller. So it can show that the ecosystem doesn't function that well and the whales would gather less information not as same as food before in their surroundings.

Revised (140 words): Masking occurs when environmental sounds are louder than those produced by animals. The professor cited orca whales as an example. These whales utilize a unique echo system to locate food in their environment by generating clicking sounds, which help them find food sources. Scientists conducted an experiment using boat noises to determine if increased noise levels would affect orca behavior. They discovered that when boat noises blocked the transmission of orcas' clicking sounds, their foraging area shrank by up to 20%. This indicates that their echo system was not functioning optimally, causing them to gather less information about potential food sources in their surroundings compared to when there was no noise interference.

6.思维导图

• Masking

  • Environmental sounds
  • Animal sounds

• Orca whales

  • Echo system
    • Clicking sounds
    • Locating food

• Experiment

  • Boat noises
  • Impact on orcas
    • Foraging area reduction

7.关键词

1.子项得分 Delivery: 3 Language Use: 3 Topic Development: 3

2.预估分数

23. 3.表达

从表达方面来看，发言者的语言流利，语速较为稳定，仅有少量停顿。但在某些地方，发言者的发音不够准确，导致了拼写错误。建议发言者在练习时注意提高发音准确性，并尝试减少不必要的停顿。

4.话题发展 从话题发展方面来看，发言者的回答内容基本上是连贯和有组织的，观点之间的联系也比较清晰。但是，在解释掩蔽概念和描述鲸鱼受到影响的部分，可以提供更多详细信息和例子来支持观点。建议发言者在练习时尝试更深入地阐述观点，并提供更充分的支持或例子。

5.语言使用

Original Answer: The term masking explains that environmental noise can affect animal's survival, which means the presence of excessive noise can threaten animal's survival. The lecturer used the example of aqua whales, which produce and receive sounds in their daily life to communicate or locate their food. The whale have sense of special sounds. A study in West Canada shows that if the whale was exposed to environmental noise, they will change in behaviors, and the size of area for food will be reduced for 20%, and the information for food will be reduced.

Corrected Answer: The term masking "masking" (使用引号表示特定术语) explains that environmental noise can affect animal's an animal's (添加定冠词'an') survival, which means the presence of excessive noise can threaten animal's an animal's (添加定冠词'an') survival. The lecturer used the example of aqua whales orca whales (修正为正确的鲸鱼种类名称), which produce and receive sounds in their daily life to communicate or locate their food. The whale have whales have a (使用复数形式并添加定冠词'a') sense of special sounds. A study in West western (使用小写形式并修正为形容词) Canada shows that if the whales whales (使用复数形式) were exposed to environmental noise, they would change in their (修正为正确的代词) behaviors, and the size of area for food will be reduced for 20% the area for searching food would be reduced by 20% (重新组织句子以提高清晰度), and the information for food will be reduced.

Revised Answer (140 words): The term "masking" refers to the phenomenon where environmental noise can negatively impact an animal's survival by interfering with essential sounds they produce and receive. The lecturer illustrated this concept using orca whales as an example. These whales rely on their ability to produce and receive specific sounds to communicate and locate food sources. A study conducted in western Canada demonstrated that when orca whales were exposed to increased environmental noise, their behaviors changed, resulting in a reduction of their food-searching area by up to 20%. Consequently, the whales' ability to gather information about potential food sources was diminished. This example highlights the detrimental effects of masking on animals' survival and emphasizes the importance of addressing environmental noise pollution to protect vulnerable species like orca whales.

6.思维导图

• Masking

  • Environmental noise
  • Animal survival

• Orca whales

  • Communication
  • Locating food

• Western Canada study

  • Exposure to noise
  • Changed behaviors
  • Reduced food-searching area

7.关键词

1.子项得分

• 交付：3

• 语言使用：3

• 话题发展：3

2.预估分数

• 总分：23

3.表达 回答中的语言表达较为清晰，但仍有改进空间。建议在练习时注意语速的控制，避免过快或过慢。同时，注意在适当的地方停顿，以增强语言的连贯性。在发音方面，需要注意一些单词的准确发音，以避免拼写错误。

4.话题发展 回答内容基本上涵盖了阅读和听力材料中的关键信息，并进行了合理的组织。但可以尝试更加清晰地表述观点，并在适当的地方添加更多细节和例子来支持观点。此外，在连接不同观点时，可以使用更多的过渡词汇，以提高回答的连贯性。

5.语言使用

原文：According to the reading, masking is a phenomenon that's covering over of one sound with another sound. Masking, as mentioned in the reading, is a phenomenon where one sound covers another.（将句子结构进行了调整，使其更自然。）（调整了句子结构，使其更自然。） The professor elaborates on this. The professor provides further explanation on this topic.（使用了更高级的词汇。）（使用了更高级的词汇。） She tells about the orca whales, which is one of the largest species of whales. She discusses orca whales, which are one of the largest species of whales.（改进了语法和句子结构。）（改进了语法和句子结构。） They make sounds and listen to its echoes to know the surrounding objects, locations, sizes, and shapes. They produce sounds and listen to their echoes to identify surrounding objects, locations, sizes, and shapes.（使用了更高级的词汇和更自然的句子结构。）（使用了更高级的词汇和更自然的句子结构。） And they use clicking sounds to find their food. Moreover, they utilize clicking sounds to locate their food.（使用了更高级的词汇和过渡词。）（使用了更高级的词汇和过渡词。） Furthermore, the professor tells about an experiment in West Coast Canada. Additionally, the professor describes an experiment conducted on the West Coast of Canada.（改进了句子结构和词汇。）（改进了句子结构和词汇。） Scientists want to learn more about the possible behavior when noises level increase around the orca whales. Scientists aim to investigate how increased noise levels might affect orca whales' behavior.（改进了句子结构和语法。）（改进了句子结构和语法。） They found that it will block the transmission distance of the whales' clicking sounds. They discovered that it obstructs the transmission distance of the whales' clicking sounds.（使用了更高级的词汇。）（使用了更高级的词汇。） As a result, the area where whales searched for food is smaller, up to 20%, and the ecosystem cannot function fully and whales couldn't gather information. Consequently, the area where whales search for food is reduced by up to 20%, hindering the ecosystem's full functionality and limiting the whales' ability to gather information.（改进了句子结构、词汇和语法。）（改进了句子结构、词汇和语法。）

修订版（140词）：

Masking, as mentioned in the reading, is a phenomenon where one sound covers another. The professor provides further explanation on this topic. She discusses orca whales, which are one of the largest species of whales. They produce sounds and listen to their echoes to identify surrounding objects, locations, sizes, and shapes. Moreover, they utilize clicking sounds to locate their food. Additionally, the professor describes an experiment conducted on the West Coast of Canada. Scientists aim to investigate how increased noise levels might affect orca whales' behavior. They discovered that it obstructs the transmission distance of the whales' clicking sounds. Consequently, the area where whales search for food is reduced by up to 20%, hindering the ecosystem's full functionality and limiting

6.思维导图

- Masking
  - Phenomenon
  - One sound covers another

- Orca Whales
  - Largest species
  - Produce sounds and echoes
  - Identify surroundings
  - Locate food

- Experiment
  - West Coast of Canada
  - Investigate noise levels' effect on behavior
  - Obstructs transmission distance of clicking sounds

- Consequences
  - Reduced search area for food (20%)
  - Hindered ecosystem functionality
  - Limited information gathering ability

7.关键词

1.子项得分 Delivery: 3 Language Use: 3 Topic Development: 3

2.预估分数

23. 3.表达

从表达方面来看，回答的语音清晰，语速适中，但有时会出现停顿。为了提高口语表达能力，建议在练习时注意发音准确性，并尝试在不影响理解的情况下减少停顿。同时，可以多参加一些口语练习活动，提高自己的流利度和自信心。

4.话题发展 从话题发展方面来看，回答内容基本上是连贯和有组织的，但在某些地方可以进一步加强。为了提高话题发展能力，建议在练习时注意以下几点：首先，在描述阅读材料和听力材料时，要确保提供足够的支持或例子；其次，在连接不同观点时，要使用恰当的过渡词或短语；最后，在总结回答时，可以尝试使用更多的同义词或表达方式，以增强说服力。

5.语言使用

Original Answer: The reading is talking about masking masking (原文中的单词拼写错误，应为"masking"), which states that environmental sound covers the sound animal uses, which is detrimental to the animal's survival. The professor used the idea of ocker orca (拼写错误，应为"orca") whales to illustrate the idea. The ocker orca (同上) whales is a kind of animal who make special sounds and use the echo to detect their surrounding, which leads to their meals. So it is essential for ocker orca (同上) whales to use their sounds. The experiment did by some research shows that while the noise of birds increasing, the area of the whales can seek food becomes smaller, thus it is believed that the environmental sounds can block the signal the whales transmit or receive to gain information.

Revised Answer (140 words): Masking occurs when environmental noise covers essential sounds used by animals, negatively affecting their survival. The professor used orca whales as an example to illustrate this concept. Orca whales are a species that rely on special sounds and echoes to detect their surroundings and locate food sources. Thus, it is crucial for orca whales to utilize these sounds effectively. A study conducted by researchers showed that as boat noise increased in the whales' habitat, the area in which they could search for food decreased by up to 20%. This suggests that environmental noise can obstruct the signals transmitted or received by the whales, hindering their ability to gather information about potential food sources.

6.思维导图

• Masking

  • Environmental noise
  • Animal survival

• Orca whales

  • Special sounds and echoes
  • Detect surroundings and locate food

• Study

  • Boat noise increase
  • Search area for food decreased by 20%

• Conclusion

  • Environmental noise obstructs signals
  • Hinders information gathering

7.关键词