TOEFL TPO -1 Speaking Task 4 Sample: Using points and examples from the professor's lecture, explain two ways desert birds stay cool.

1.Sub Scores

• Delivery: 4

• Language Use: 4

• Topic Development: 4

2.Estimated Scores

• Total Score: 30

3.Delivery The speaker's delivery is clear, fluid, and has a consistent pace with only occasional pauses. There are no significant punctuation problems or spelling errors resulting from inaccurate pronunciation. The speaker's delivery is already at a high level, so there is no need for improvement in this aspect.

4.Topic Development The speaker provides a coherent and well-organized response, with clear connections between ideas and sufficient support or examples from the professor's lecture. The answer effectively explains the two methods desert birds use to stay cool in their harsh environment. The topic development is also at a high level, so there is no need for improvement in this aspect.

5.Language Use

The professor explains two methods that desert birds use to stay cool in their harsh environment. Firstly, they utilize wind power by adjusting their feathers. When desert birds get too hot, they raise their feathers away from their bodies, exposing more skin underneath. This allows the breeze to make contact with their skin, cooling them down effectively. Secondly, they regulate their internal temperature by directing more blood to areas with fewer feathers. For instance, when desert birds overheat, they send more blood to their legs and feet, which have less feather coverage. As a result, the blood near the skin's surface cools down due to its proximity to the air, ultimately cooling down the entire bird. These adaptive strategies enable desert birds to survive and thrive in extreme heat conditions.

There are no significant language use problems in the original answer. The sentence structure, vocabulary, and grammar are all appropriate for a high-level response. The answer uses advanced vocabulary and proper grammar while maintaining a natural flow of statements with smooth transitions and strong conclusions.

Revised Answer (140 words):

The professor discusses two techniques that desert birds employ to maintain a comfortable temperature in their challenging surroundings. First, they take advantage of wind currents by manipulating their plumage. When these birds become overheated, they lift their feathers away from their bodies, revealing more of the underlying skin. This action enables air currents to reach the exposed skin and effectively dissipate heat. Second, they manage internal body heat by increasing blood flow to areas with sparse feathering. For example, when desert birds experience excessive warmth, they direct additional blood flow towards their legs and feet where feathers are scarce. Consequently, the blood near the skin's surface cools due to its close proximity to ambient air currents, resulting in an overall reduction in body temperature. These adaptive mechanisms allow desert birds to endure and flourish in extremely hot environments.

6.Mind Map

• Desert birds
  • Harsh environment
  • Cooling techniques
    • Wind power
      • Adjusting feathers
      • Exposing skin
    • Regulating internal temperature
      • Directing blood flow
      • Sparse feather areas (legs and feet)
  • Survival and thriving

7.Key Words