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

1.子项得分 Delivery: 2 Language Use: 2 Topic Development: 2

2.预估分数

15. 3.表达

从表达方面来看，发言者的语速较快，有时会出现不必要的停顿。建议发言者注意控制语速，保持稳定的节奏，并减少不必要的停顿。此外，发言者在发音方面也有一些错误，需要加强发音练习。

4.话题发展 从话题发展方面来看，发言者对于掩蔽现象和适用于虎鲸的例子进行了解释，但是在组织结构和逻辑上还有待提高。建议发言者在回答问题时更加注重逻辑性和条理性，确保观点之间有清晰的联系，并提供充分的支持或例证。

5.语言使用

Original Answer: When environmental sounds louder than the sound made by the animals, it will result in masking. In this lecture, the professor used the example of the egg whales. Egg whales, it largely depends on sound because it has a ventral system called ecosystem that to send off the sound and return the series of clicking sound so that they can lead them to the direction of the food location. While this experiment made by the scientists that they used the type of the environmental noise to determine whether or not they are going to change the probability of survival turns out that the effect is showing that the effect is 20% of the sound and it reduces the probability of survival.

Corrected Answer: When environmental sounds are louder than those made by animals, it results in masking. In this lecture, the professor used the example of orca whales. Orca whales largely depend on sound because they have a unique system called echolocation to send out and receive a series of clicking sounds, which helps them determine the direction of food sources. In an experiment conducted by scientists, they used environmental noise to determine whether it would change the whales' chances of survival. The results showed that a 20% increase in noise reduced their chances of survival. (修改了一些词汇和语法错误，使句子更自然流畅。例如，将“egg whales”改为“orca whales”，将“ventral system called ecosystem”改为“unique system called echolocation”等。)

Revised Answer (140 words):

When environmental sounds are louder than those made by animals, it results in a phenomenon called masking. In a biology lecture, the professor discussed an example involving orca whales. These whales largely depend on sound for survival as they use a unique system called echolocation to send out and receive a series of clicking sounds. This helps them determine the direction of food sources in their environment. Scientists conducted an experiment to study the impact of environmental noise on the whales' chances of survival. They focused on noise from boats in the whales' habitat and observed how it affected their behavior. The results showed that a 20% increase in noise from boats reduced the whales' chances of survival, as it interfered with their echolocation system and limited their ability to gather information about food sources in their surroundings.

6.思维导图

• Masking

  • Environmental sounds
  • Animal sounds

• Orca whales

  • Echolocation
    • Clicking sounds
    • Food sources

• Experiment

  • Environmental noise
  • Boat noise
  • Impact on survival

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，语速基本一致，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。建议发言者多加练习，提高发音准确度。

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，各个观点之间的联系也比较清晰。但在某些地方，发言者没有充分利用阅读和听力材料中的信息来支持自己的观点。建议发言者在回答问题时更加关注材料中的细节，并尝试用更多例子来支持自己的观点。

5.语言使用

Original Answer: Well, the masking refers to when the environmental sounds are louder than the sounds that animals use, and this result is called the masking. Masking occurs when environmental sounds are louder than the sounds animals use, which is also known as masking. (原句表达较为冗长，修改后更简洁明了。) In the conversation, the professor talks about an example of ochre wheels. In the lecture, the professor discusses an example of orca whales. (单词拼写错误，已修正。) These wheels can have special sounds and use the echo to find their locations, communicate with other wheels, and find food. These whales produce special sounds and use echoes to locate themselves, communicate with other whales, and find food. (句子结构和词汇调整，使表达更自然。) They can use echoes to find the more information surrounding them. They utilize echoes to gather more information about their surroundings. (调整句子结构和词汇，使表达更准确。)

Revised Answer (140 words):

Masking occurs when environmental sounds are louder than the sounds animals use, which is also known as masking. In the lecture, the professor discusses an example of orca whales. These whales produce special sounds and use echoes to locate themselves, communicate with other whales, and find food. They utilize echoes to gather more information about their surroundings. Orca whales use clicking sounds to determine the location, shape, and size of objects in their habitat. In the study, scientists focused on noise from boats in the whales' habitat off the west coast of Canada. The increased noise level from the boats is believed to have blocked the transmission distance of the whales' clicking sounds, reducing their foraging area by up to 20%. This indicates that the whales' echolocation abilities were impaired, and they could not gather as much information about potential food sources in their surroundings.

6.思维导图

• Masking

  • Definition
  • Environmental sounds

• Orca whales

  • Special sounds
  • Echolocation
  • Communication
  • Finding food

• Study

  • Boat noise
  • West coast of Canada
  • Impact on echolocation
  • Reduced foraging area

7.关键词

1.子项得分 Delivery: 2.5 Language Use: 2.5 Topic Development: 3

2.预估分数

19. 3.表达

在发音方面，你的回答有些不清晰，需要更加注重发音的准确性。此外，你的语速不够稳定，有时过快，有时过慢。建议你在练习时注意保持稳定的语速，并适当地进行停顿。这样可以让你的回答更加流畅和清晰。

4.话题发展 你的回答在话题发展方面做得相对较好，能够解释掩蔽现象并举例说明它是如何影响虎鲸的。然而，在提供细节和例子时，你可以更加具体和详细。例如，你可以提到研究中船只噪音增加导致虎鲸捕食区域缩小20%这一事实。此外，在组织结构上，你可以尝试使用更多的连接词和短语来使回答更加连贯。总之，通过提供更多具体细节和改善组织结构，你的回答将更加完整和有说服力。

5.语言使用

Original Answer: Well, the masking is refers to when environment sounds are louder than the sounds that animals use and the result is the masking. Masking occurs when environmental sounds are louder than the sounds animals use, resulting in interference. (将句子结构进行了调整，使其更自然流畅。) In the lecture, the professor gives an example of whales, and the ochre whales can make special sounds like they use the echoes in order to find the location where they are to communicate with the other whales and to find food, In the lecture, the professor uses orca whales as an example. These whales produce special sounds and use echoes to locate themselves, communicate with other whales, and find food. (修改了句子结构，使其更清晰；修正了"ochre"为"orca"。) and the ochre whales have these collecting sounds like noises, Orca whales have these clicking sounds, (修正了"collecting"为"clicking"，并删除了多余的信息。) and it's same with other whales, they change their sounds in the behavior if there are some boats in the distance from it, similarly, they change their sounds if boats are nearby, (简化了句子结构，使其更自然。) so they search for the food in a more lower sound, so they search for food using quieter sounds, (改进了表达，使其更准确。) and this is a good example to illustrate the explanation of the masking. and this serves as a good example to illustrate the concept of masking. (调整了句子结构，使其更自然。)

Revised Answer (140 words): Masking occurs when environmental sounds are louder than the sounds animals use, resulting in interference. In the lecture, the professor uses orca whales as an example. These whales produce special sounds and use echoes to locate themselves, communicate with other whales, and find food. Orca whales have these clicking sounds, and similarly, they change their sounds if boats are nearby. The study mentioned in the lecture showed that increased boat noise led to a reduction in the whales' hunting area by up to 20%. This means that their echolocation system was not functioning at its full capacity due to masking. As a result, the whales couldn't gather as much information about potential food sources in their surroundings. This serves as a good example to illustrate the concept of masking and its impact on animals' survival.

6.思维导图

- Masking
  - Definition
  - Interference

- Orca Whales
  - Special sounds
  - Echoes
  - Communication and food finding

- Boat Noise Impact
  - Change in sounds
  - Reduction in hunting area (20%)

- Echolocation System
  - Functioning capacity affected

- Example illustrating masking concept

7.关键词