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