TOEFL TPO -1 Speaking Task 4 Sample: Using the example of the thunder bird, explain a possible effect of a major climate change.

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，这个回答的发音和语速基本上是清晰的，但在某些地方存在一些不必要的停顿。为了提高口语表达能力，建议在练习时注意保持连贯流畅的语速，并尽量减少不必要的停顿。同时，注意正确发音单词，以免出现拼写错误。

4.话题发展

从话题发展方面来看，这个回答基本上是连贯和有组织的，但在某些地方可以进一步完善。例如，在解释为什么科学家认为气候变化导致雷鸟灭绝时，可以更详细地描述干旱期间鸟类聚集在湖泊周围以寻找淡水的情况。此外，在总结时可以更明确地指出气候变化可能导致物种灭绝这一效果。通过对这些方面进行改进，可以使回答更加完整和有说服力。

5.语言使用

Original Answer: The lecture is mainly about an effect of a major climate change is the extinction of species. In the professor's example, there are a giant of Australia bird called Thunderbird, whose extinction is thought to be caused by change of climate by many scientists. Here is the evidence. A large amount of bones are found in one spot near the lake, which is very rare to find so many bones in one place. The explanation is that the birds seek the fresh water and gather around the lake, and they extinguished it after it was drought.

Corrected Answer: The lecture mainly discusses anthe effect of a major climate change(改为定冠词the，因为这里特指气候变化的一个效果), which is the extinction of species. In the professor's example, there are aa giant Australian bird called Thunderbirdthe Thunderbird is mentioned(修改句子结构，使其更自然), whose extinction is thought to be caused by change of climateclimate change by many scientists. Here is the evidence: A large number of bones are foundwere discovered in one spot near a lake, which is very rare to find so many bones in one place. The explanation is that the birds sought fresh water and gathered around the lake, and they extinguishedperished after it wasbecame drought-stricken(修改词汇和语法，使句子更自然).

Revised Answer (140 words): The lecture mainly discusses the effect of a major climate change, which is the extinction of species. In the professor's example, a giant Australian bird called the Thunderbird is mentioned, whose extinction is thought to be caused by climate change according to many scientists. The evidence supporting this claim is the discovery of a large number of Thunderbird bones in one spot near a lake, which is an unusual occurrence. The explanation provided by scientists is that during a prolonged drought, the birds sought fresh water and gathered around the lake as one of their last remaining sources of water. As the drought persisted and the lake eventually dried up, the Thunderbirds perished, leading to their extinction. This example demonstrates how major climate changes can have devastating effects on various animal species, ultimately causing their extinction.

6.思维导图

- Climate Change
  - Effect
    - Extinction of species
      - Example: Thunderbird
        - Evidence
          - Large number of bones found near a lake
        - Explanation
          - Prolonged drought
          - Birds sought fresh water at the lake
          - Lake dried up, birds perished
        - Conclusion
          - Climate change can cause extinction of species

7.关键词