TOEFL TPO 25 Speaking Task 4 Sample: Using points and examples from the lecture, explain two ways weathering occurs.

1. Sub Scores

• Delivery: 3

• Language Use: 3

• Topic Development: 3

2. Estimated Scores

• Total Score: 23

3. Delivery The speaker's delivery is generally clear and fluid, but there are some occasional pauses and punctuation issues that need improvement. To enhance the delivery, the speaker should work on maintaining a consistent pace and reducing unnecessary pauses. Additionally, focusing on accurate pronunciation will help to avoid spelling errors in the response.

4. Topic Development The response is coherent and well-organized, with clear connections between ideas and sufficient support or examples from the lecture. However, there is room for improvement in terms of elaborating on the examples provided and ensuring that all key points are covered in detail. To improve topic development, the speaker should focus on providing more specific examples from the lecture and making sure that each point is fully explained and supported by relevant information from the lecture.

5. Language Use

Original Answer: The professor explains the two possible causes of weathering. Firstly, she talks about exposure to water What happens is that? When it rains rocks have small openings and the raindrops fall inside the rocks during night when temperature decreases the water starts to cool and eventually freezes as the Frozen water gets bigger the crack also widens which results in weathering of rocks The second cause that she talks about is the plant growth when plant seeds are dispersed inside the cracks of the Rock eventually the plant starts to grow which also leads to the formation of the roots The roots expand in search of minerals and waters which thereby causes the rock to fracture into pieces One example of this is we have all we have mostly seen large trees growing on top or surfaces of rocks This explains the plant growth can lead to weathering

Corrected Answer: The professor explains thetwo possible causes of weathering. Firstly, she talks about exposure to water. What happens is that?(unnecessary question) When it rains, rocks have small openings, and the raindrops fall inside the rocks. duringAt night when temperature decreases, the water starts to cool and eventually freezes. asAs the frozen water gets bigger, the crack also widens, which results in weathering of rocks. The second cause that she talks about is the plant growth. whenWhen plant seeds are dispersed inside the cracks of the rock, eventually the plant starts to grow, which also leads to the formation of the roots. The roots expand in search of minerals and water, which thereby causes the rock to fracture into pieces. One example of this is we have all we have mostly seenlarge trees growing on top or surfaces of rocks, which most of us have seen(rephrased for clarity). This explains thehow plant growth can lead to weathering.

Revised Answer (140 words): The professor explains two possible causes of weathering. Firstly, she discusses exposure to water. When it rains, rocks have small openings, and raindrops fall inside them. At night, when temperatures decrease, the water cools and eventually freezes. As the frozen water expands, it widens the cracks, resulting in weathering of rocks. The second cause she mentions is plant growth. When plant seeds are dispersed into rock cracks, plants start to grow and form roots. These roots expand in search of minerals and water, causing the rock to fracture into pieces. A common example is large trees growing on top or surfaces of rocks, which most of us have seen. This explanation demonstrates how plant growth can lead to weathering.

6. Mind Map

- Weathering
  - Exposure to water
    - Raindrops in rock openings
    - Freezing at night
    - Crack widening
  - Plant growth
    - Seed dispersion in rock cracks
    - Root formation and expansion
    - Rock fracturing
  - Examples
    - Large trees on rock surfaces

7. Key Words

1.子项得分

• 语言运用: 3

• 发言: 3

• 话题发展: 3

2.预估分数

• 总分: 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更多的练习。建议练习更流畅、自然的语速，并注意在适当的地方停顿。此外，尝试减少重复词汇，以提高语言表达的丰富性。

4.话题发展 回答内容基本上是连贯和有组织的，但可以进一步改进。建议在解释天气侵蚀过程时提供更详细的例子和解释，以使回答更具说服力。同时，注意使用恰当的连接词，使句子之间的衔接更加自然。

5.语言使用

原文：Well, the first way is rocks were broken by water, because the water inside the rocks, when the temperature goes down, the water inside the rock will cause a crack. The first way is that rocks break due to water; when the temperature decreases, the water inside the rocks causes cracks.（将句子结构进行了简化，使其更自然流畅。同时，修正了语法错误。）

And when this process happens over and over again, it causes rocks to break up. As this process repeats, it leads to the fragmentation of rocks.（使用了更高级的词汇“fragmentation”，并改进了句子结构。）

And the second way is plants, when the roots of plants go inside to the rocks, such as a large tree, and the tree grows over years, making the roots bigger and deeper, leading to the rock breaking apart. The second way involves plants; as plant roots penetrate into rocks like large trees and grow over time, they become larger and deeper, causing the rock to break apart.（重新组织了句子结构，使其更清晰易懂。同时，修正了语法错误。）

根据修改建议后的回答（140字）：

The first way is that rocks break due to water; when the temperature decreases, the water inside the rocks causes cracks. As this process repeats, it leads to the fragmentation of rocks. The second way involves plants; as plant roots penetrate into rocks like large trees and grow over time, they become larger and deeper, causing the rock to break apart. These are the two ways that weathering occurs.

6.思维导图

Weathering
|
|-- Water
|   |-- Temperature decrease
|   |-- Cracks formation
|   |-- Fragmentation of rocks
|
|-- Plants
    |-- Plant roots penetration
    |-- Large trees
    |-- Growth over time
    |-- Roots become larger and deeper
    |-- Rock breaking apart

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，这位同学的回答基本上是清晰的，语速适中，偶尔有些停顿。但在某些地方，例如“bigger fears”应该是“bigger cracks”，可能是发音不准确导致的。建议同学在发音方面多加练习，注意一些词汇的正确发音。

4.话题发展 从话题发展方面来看，这位同学的回答内容基本上是连贯和组织良好的，能够清楚地阐述两种风化现象。但在举例子时，可以尝试更详细地描述这些现象，以便更充分地支持观点。例如，在描述冻胀现象时，可以提到冰的膨胀力会使岩石裂缝逐渐扩大；在描述植物生长引起风化时，可以提到树根在寻找水分和养分时会使岩石裂缝变大。总之，在举例子时尽量详细描述现象，以便更好地支持观点。

5.语言使用

Original: The main idea is that sometimes big rocks can be divided into small pieces due to a phenomenon named weathering. The professor gives two examples of the weathering to show how air, water and some creatures can help the rocks to be divided. The first is that when rain drops down and stay on the rocks and in the winter the water may freeze. Due to the volume of ice is bigger than the water so it may cause the rock have bigger fears and after many times of that they may be divided into two parts. The second example is plants. If some trees live on the rock and due to the tree is growing and their roots are become bigger and bigger and deeper and deeper so it may cause the rock to be divided.

Corrected: The main idea is that sometimes large rocks can be broken down into smaller pieces due to a phenomenon called weathering. The professor provides two examples of weathering to demonstrate how air, water, and living organisms can contribute to breaking down rocks. The first example involves rainwater seeping into rocks, which then freezes in winter. Since ice has a larger volume than water, it causes cracks in the rock to widen, eventually breaking it apart after repeated cycles. The second example involves plants, specifically trees growing on rocks. As trees grow, their roots expand and penetrate deeper into the rock, causing it to fracture.

(原文中的“big rocks”改为“large rocks”，因为“large”更适合描述岩石的大小。将“divided”改为“broken down”，因为这个词组更符合描述风化现象。将“fears”改为“cracks”，因为这是一个拼写错误，应该是指岩石的裂缝。将“divided into two parts”改为“breaking it apart”，以更准确地描述岩石破碎的过程。)

Revised (140 words): The main idea is that large rocks can sometimes be broken down into smaller pieces due to a phenomenon called weathering. The professor provides two examples of weathering to demonstrate how air, water, and living organisms contribute to breaking down rocks. The first example involves rainwater seeping into cracks in rocks and freezing during winter. Since ice has a larger volume than water, it causes the cracks in the rock to widen, eventually breaking the rock apart after repeated cycles. The second example involves plants, specifically trees growing on rocks. As trees grow, their roots expand and penetrate deeper into the rock, causing it to fracture. Over time, this process leads to the disintegration of the rock, illustrating how both water and plant growth contribute to the weathering process.

6.思维导图

Weathering
├─ Large rocks
│   └─ Broken down into smaller pieces
├─ Examples
│   ├─ Rainwater and freezing
│   │   ├─ Seeping into cracks
│   │   ├─ Ice expansion
│   │   └─ Cracks widening and breaking apart
│   └─ Plant growth (trees)
│       ├─ Roots expanding and penetrating rocks
│       └─ Causing rocks to fracture
└─ Contributing factors
    ├─ Air
    ├─ Water
    └─ Living organisms

7.关键词