TOEFL TPO 74 Speaking Task 3 Sample: Explain how the example of the heron illustrates exaptation.

1.Sub Scores Delivery: 3 Language Use: 3 Topic Development: 3

2.Estimated Scores

23. 3.Delivery

The speaker's delivery is generally clear and fluid, with a consistent pace and only occasional pauses. However, there are some minor issues with punctuation and pronunciation that could be improved. For example, the speaker should work on pronouncing "glue" as "glare" and "birds" as "fish." Additionally, the speaker should practice using appropriate pauses to make the speech sound more natural.

4.Topic Development The response is coherent and well-organized, with clear connections between ideas and sufficient support or examples. The speaker effectively explains how the heron's use of its wings to block the sun illustrates exaptation. However, there is room for improvement in providing more specific details from the listening passage, such as mentioning that the heron lives near rivers and marshes in Africa. Additionally, the speaker should work on using more varied vocabulary and sentence structures to make the response more engaging.

5.Language Use

Adaptation Exaptation (corrected to match the term from the reading passage) is a behavior that animals use one of its existing features for new purposes. For example, a type of heron is a wading bird and they live in shallow water. They capture fish for food. However, they sometimes find it hard to see fish because the sunlight is so strong that it will reflect on the surface of the water. Then they figure out a solution. They use their wings, which were originally used for flying, to block the sun. They will put their wings above their head and form an umbrella, which creates shade to block the sun. By that way, they can eliminate the glue glare (corrected for accurate vocabulary). As a result, they can see birds fish (corrected to match the context) better and more clearly, so that they can catch more fish.

Revised Answer (140 words):

Exaptation is a process in which animals utilize one of their existing features for new purposes to adapt to environmental challenges. A prime example of this is seen in a specific type of heron, a wading bird that inhabits shallow waters near rivers and marshes in Africa. These herons primarily feed on fish but often struggle to spot them due to the glare caused by sunlight reflecting off the water's surface. To overcome this obstacle, herons have adapted to use their wings, initially meant for flying, as a means to block the sun. By holding their wings above their heads, they create a shade that eliminates the glare, allowing them to see fish more clearly and ultimately catch more prey. This innovative use of their wings exemplifies exaptation, as the herons continue to use their wings for flying while also employing them for a new purpose.

6.Mind Map

• Exaptation
  • Definition
  • Heron example
    • Wading bird
    • Feeding on fish
    • Sun glare problem
    • Wing adaptation
      • Blocking sun
      • Shade creation
      • Improved fish visibility

7.Key Words

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，回答中的语音清晰，语速基本一致，仅有少量停顿。但在某些地方，标点符号的使用不当可能导致不适当的停顿。拼写错误可能是发音不准确的结果。建议在发音和停顿方面进行练习和改进。

4.话题发展 从话题发展方面来看，回答内容连贯、组织良好，观点之间关系明确，举例充分。但需要注意的是，回答中将“exaptation”误写为“exploitation”，这是一个需要改正的错误。另外，在描述鹭鸟如何利用翅膀遮阳的过程时，可以更详细地说明其行为特点。总体来说，可以在词汇准确性和细节描述方面进行改进。

5.语言使用

Original: Exploitation Exaptation(原文中将“exaptation”误写为“exploitation”，这是一个需要改正的错误。) means that animals may use their existing features for new purposes, and they will use these features for both older purposes and new purposes. For example, a bird living in a river in Africa, they spend a lot of time walking around shallow water and feed on fish. But here's a problem, they can't see the fish clearly since the reflection caused by sunlight. And then they came up with a cool solution by using their wings. In Europe, their wings were used to fly. But at this time, they found they could use this wing to block the sun. So when they walk on the shallow water, they back to the sun and hold their wings above their head, and this blocks the sunlight to help them see the fish clearly.

Revised (140 words):

Exaptation means that animals may use their existing features for new purposes while still utilizing them for their original functions. For instance, there is a bird species living near rivers in Africa that spends much of its time wading in shallow waters to feed on fish. However, these birds face a challenge as sunlight reflections make it difficult to see the fish clearly. To overcome this issue, they have adapted to use their wings not only for flying but also for blocking sunlight. By positioning their wings above their heads with their backs facing the sun, these birds create shade that eliminates glare on the water's surface, allowing them to see the fish more easily. This example demonstrates how exaptation enables animals to find innovative solutions to environmental challenges by repurposing existing physical features.

6.思维导图

• Exaptation

  • Definition
  • Original and new purposes

• African bird example

  • Wading in shallow waters
  • Sunlight reflection problem
  • Wings adaptation
    • Blocking sunlight
    • Improved visibility for fish

7.关键词

1.子项得分

• 交付 (Delivery): 3

• 语言使用 (Language Use): 3

• 话题发展 (Topic Development): 3

2.预估分数

• 总分: 23

3.表达 回答中的发音大部分清晰，语速适中，但有时会出现不必要的停顿。建议在练习时注意保持连贯流畅的语言表达，减少不必要的停顿。同时，注意提高发音准确性，以避免拼写错误。

4.话题发展 回答内容基本上符合题目要求，能够解释鹭鸟的例子如何说明了物种适应性的演变。但在组织结构和连接思路方面还有待加强。建议在练习时注意明确地陈述观点，并在论述过程中保持逻辑清晰和条理分明。同时，可以尝试使用更多的连接词和过渡词汇来使回答更加连贯。

5.语言使用

原文：In the lecture, the professor uses the example to explain the physical feature of an animal's body usually serves a special purpose. In the lecture, the professor uses the example to explain that a physical feature of an animal's body usually serves a specific purpose.（将"特殊"改为"特定"，使语义更准确。同时，添加"that"以使句子结构更完整。）

In the example, there is a bird which is a kind of heron. In the example, there is a bird that is a type of heron.（将"which"改为"that"，使句子结构更自然。同时，将"kind"改为"type"以保持与原文一致。）

This kind of bird always walking around and when they want to catch fish, they can't see it clearly because of glare and reflection. This type of bird is always walking around, and when they want to catch fish, they cannot see them clearly due to glare and reflection.（将"is always walking around"与后面的句子用逗号连接，使句子结构更自然。同时，将"it"改为"them"以指代复数的鱼。）

But after that, the bird found a cool solution which is using wings. However, the bird found an ingenious solution by using its wings.（将"cool"改为"ingenious"以使用更高级的词汇。同时，修改句子结构以使其更自然。）

At first, the wings are only for fly but they started to block the sun which can create a shade. Initially, the wings were only for flying, but they started to block the sun, which created shade.（将"are"改为"were"以保持时态一致。同时，修改句子结构以使其更自然。）

When they are holding them, it's like an umbrella and a canopy. When the heron holds its wings above its head, they act like an umbrella and a canopy.（修改句子结构以使其更自然。）

修订后的回答（140字）：

In the lecture, the professor uses the example to explain that a physical feature of an animal's body usually serves a specific purpose. In the example, there is a bird that is a type of heron. This type of bird is always walking around, and when they want to catch fish, they cannot see them clearly due to glare and reflection. However, the bird found an ingenious solution by using its wings. Initially, the wings were only for flying, but they started to block the sun, which created shade. When the heron holds its wings above its head, they act like an umbrella and a canopy.

6.思维导图

Exaptation
├─ Lecture
│   └─ Physical feature serves a specific purpose
├─ Example
│   ├─ Type of heron
│   ├─ Difficulty catching fish due to glare and reflection
│   └─ Ingenious solution: using wings
└─ Wings' functions
    ├─ Flying
    ├─ Blocking the sun (creating shade)
    └─ Acting like an umbrella and a canopy

7.关键词