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

1.子项得分

• Delivery: 2

• Language Use: 2

• Topic Development: 3

2.预估分数

• Estimated Score: 17 (mapped to 0-30 scale)

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。建议发言者在练习口语时，注意控制语速，保持稳定的节奏，并尽量减少不必要的停顿。此外，发言者在发音方面也需要加强练习，以提高准确度。

4.话题发展 The speaker provided a coherent and well-organized response, explaining two ways weathering occurs: ice formation and tree growth. However, the examples could be more detailed and connected to the lecture content. To improve topic development, the speaker should focus on providing specific examples from the lecture, such as mentioning how water freezing inside rocks causes them to break apart or how plant roots grow into rocks and cause them to fracture. Additionally, using more transitional phrases to connect ideas can help create a smoother flow in the response.

6.语言使用

Original Answer: The two-phase weathering occurrence refers to the ice formation and tree growings. The first weathering refers to the process that when there are small cracks in the rock and in the daylight there are some water get into the rocks and in the evening the ice formation will wipen the cracks in the rocks and over time to repeat this process with causing a part of the rocks eventually. The second process refers to the trees growing. For instance, if I say get into the small crack of rock and then the root will struggle into the inside of the rock and over time the growing roots will make the cracks eventually

Corrected Answer: The two types of weathering discussed are ice formation and plant growth. The first type of weathering occurs when small cracks in rocks fill with water during daylight, which then freezes at night, causing ice formation that widens these cracks over time. The second type of weathering involves plant growth, such as when a seed lands in a small crack in a rock, and its roots expand within the rock, causing it to fracture over time. (将"two-phase"改为"two types"，将"tree growings"改为"plant growth"，将"wipen"改为"widen"，将"I say get"改为"a seed lands"，将"struggle into"改为"expand within")

解释：将“two-phase”改为“two types”，因为这里讲的是两种不同类型的风化过程。将“tree growings”改为“plant growth”，以保持一致性并更准确地描述植物生长对风化的影响。将“wipen”改为“widen”，因为这里讲的是冰的形成使岩石裂缝变宽。将“I say get”改为“a seed lands”，以更自然地描述种子落入岩石裂缝的过程。将“struggle into”改为“expand within”，以更准确地描述植物根在岩石内部生长和扩张的过程。

Revised Answer (140 words): The lecture discusses two types of weathering processes: ice formation and plant growth. The first type of weathering occurs when small cracks in rocks fill with water during the day. At night, the temperature drops, causing the water to freeze and expand within the cracks. This repeated process of ice formation and expansion eventually leads to the rocks breaking apart. The second type of weathering involves plant growth. For example, when a seed lands in a small crack in a rock, it takes root and its roots grow deeper into the rock. As the roots expand within the rock, they widen and enlarge the cracks, causing the rock to fracture over time. Both ice formation and plant growth contribute to the weathering process by breaking down rocks through natural environmental factors.

7.思维导图

Weathering Processes
├─ Ice Formation
│   ├─ Small cracks in rocks
│   ├─ Water fills cracks during the day
│   ├─ Water freezes and expands at night
│   └─ Repeated process leads to rock breaking apart
└─ Plant Growth
    ├─ Seed lands in rock crack
    ├─ Roots grow deeper into the rock
    ├─ Roots expand within the rock, widening cracks
    └─ Rock fractures over time due to root growth

8.关键词

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