TOEFL Speaking Task 3 Sample: Explain how the example from the professor's lecture illustrates the concept of hyperpredation.

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

2.预估分数 Estimated Score: 15

3.表达 在回答中，发言者的表达不够流畅，语速不一致，有时会出现停顿。此外，发音也有一些不准确的地方。建议发言者多加练习，提高口语表达能力和发音准确度。可以尝试朗读练习、模仿录音等方法来提高。

4.话题发展 The speaker's response does not fully illustrate the concept of hyperpredation as presented in the reading and listening materials. The response lacks a clear connection between the introduction of rabbits to the island and the resulting hyperpredation of the parakeets by cats. To improve topic development, the speaker should focus on clearly explaining how the introduction of rabbits as an additional food source led to an increase in the cat population, which in turn caused the extinction of the McQuarrie Island parakeets due to hyperpredation. Providing a more coherent and well-organized response with clear connections between ideas and sufficient support or examples will help improve the topic development aspect of the answer.

6.语言使用

Original Answer: In the reading materials, the author presents that there is always a balance between the prey and the predators and if there is another food resources for the predator, it will break down the balance and it will cause hyperpredation, which relates to what the lecturer in the listening material presents. In the reading passage, it is mentioned that a balance exists between predators and their prey, and if an additional food source is introduced for predators, this balance will be disrupted, leading to hyperpredation. This concept is further illustrated by the lecturer in the listening material. (原句子结构和词汇使用较为简单，改进后的句子更加清晰且使用了更高级的词汇。)

The lecturer in the listening material just says that there is a few cats in the remote Australian 19th century. The lecturer mentions that a few cats were introduced to a remote Australian island in the 19th century. (修改了原句的语法错误和不清晰的表述。)

However, the wild cat's population became increased, which degrades the balance between the cats because the population of the cats was increased and many people love the cats and they have some rabbits to eat and they expand around and cause the cat's population to increase, which will degrade the balance. However, as the wild cat population increased due to an abundance of food sources like rabbits, it disrupted the balance between predators and prey on the island. (简化了原句，使其更加清晰易懂。)

Revised Answer (140 words): In the reading passage, it is mentioned that a balance exists between predators and their prey, and if an additional food source is introduced for predators, this balance will be disrupted, leading to hyperpredation. This concept is further illustrated by the lecturer in the listening material. The lecturer mentions that a few cats were introduced to a remote Australian island in the 19th century. Initially, the cats and their primary prey, the parakeets, coexisted without any major issues. However, when rabbits were introduced to the island as an additional food source for the cats, it led to a significant increase in the cat population. As a result, the balance between predators and prey on the island was disrupted, causing hyperpredation and eventually leading to the extinction of the McQuarrie Island parakeets.

7.思维导图

- Reading Passage
  - Balance between predators and prey
  - Introduction of additional food source
  - Disruption of balance
  - Hyperpredation

- Listening Material
  - Remote Australian island
  - Introduction of cats in the 19th century
  - Coexistence with parakeets
  - Introduction of rabbits as an additional food source
  - Increase in cat population
  - Disruption of balance and hyperpredation
  - Extinction of McQuarrie Island parakeets

8.关键词