TOEFL TPO -1 Speaking Task 3 Sample: Question: Explain how the example in the lecture illustrates the concept of dimorphism

Historical user samples and AI evaluation results from an older TOEFL format.

1 archived user samples

Older TOEFL Format

This task is from a previous version of the TOEFL exam. The current TOEFL has a different structure. These archived samples remain available as a reference for practice.

Task Overview

Reading Passage

Dimorphism in man animal species. all the members or ine species lOOK similar to one anoiner. However. In some species. certain members In many animal species, all the members of the species look similar to one another. However, in some species, certain members within the species look very different from others, displaying differences in color, size, and shape, which may correspond with varies survival needs. This phenomenon is known as dimorphism. One type of dimorphism involves male and female animals that look distinct from each other. Animals of the two genders may perform these roles more effectively.

Question

Question: Explain how the example in the lecture illustrates the concept of dimorphism

User Samples & Evaluation Results

Evaluation Result

Sub Scores

Delivery: 3
Language Use: 3
Topic Development: 3

Estimated Scores

Total Score: 23

Delivery The speaker's delivery is generally clear and fluid, but there are some occasional pauses that could be improved. Additionally, there are some spelling errors that may be the result of inaccurate pronunciation. To improve, the speaker should practice speaking at a consistent pace and work on their pronunciation of certain words.
Topic Development The speaker provides a coherent and well-organized response, with clear connections between ideas and sufficient support or examples. However, there is room for improvement in terms of providing more specific details from the lecture to further illustrate the concept of dimorphism. To enhance topic development, the speaker should focus on incorporating more information from the lecture and making stronger connections between the reading and listening materials.

5. Language Use

Original: One type of ~~deformism~~ dimorphism (corrected for accurate vocabulary) involves male and female animals that look distinct from each other but serve important roles. For example, the male birds of paradise exhibit vibrant, bright-colored feathers such as yellow or red, which help them to stand out and draw attention to other females. However, the female birds only display smaller feathers with dull shades of gray and brown. Accordingly, this feature helps the male to attract the mates as many as possible while provides the female with a safe environment for them to raise their young by themselves in the nest because their dull color just blends in with the surrounding successfully, causing them to be less visible by the predators. Therefore, that's how the professor illustrates the concept of ~~deformism~~ dimorphism (corrected for accurate vocabulary).

Revised (140 words): Dimorphism involves male and female animals that appear distinct from each other while fulfilling essential roles. For instance, male birds of paradise exhibit vibrant, bright-colored feathers like yellow or red, enabling them to stand out and attract female birds. Conversely, female birds display smaller feathers in dull shades of gray and brown. This characteristic assists males in attracting as many mates as possible while providing females a secure environment to raise their offspring independently within their nests. The females' dull colors blend seamlessly with their surroundings, making them less visible to predators. Thus, the professor effectively illustrates the concept of dimorphism through this example.

Mind Map


- Dimorphism
  - Distinct appearances
    - Male and female animals
  - Example: Birds of paradise
    - Male birds
      - Vibrant, bright-colored feathers
      - Attract females
    - Female birds
      - Dull, smaller feathers
      - Safe environment for raising offspring
  - Professor's illustration of the concept

Key Words

Word	Phonetic Symbols	Parts of Speech	English Definition	Sample Sentence
Dimorphism	/daɪˈmɔːrfɪzəm/	Noun	The occurrence of two different forms or types within a species, typically in relation to gender.	The study of dimorphism in animals helps us understand the different roles played by males and females.
Vibrant	/ˈvaɪbrənt/	Adjective	Full of energy and life; bright and striking.	The vibrant colors of the male bird's feathers are essential for attracting potential mates.
Offspring	/ˈɒfˌsprɪŋ/	Noun	The young born of living organisms, especially animals.	Female birds create a safe environment for their offspring by blending in with their surroundings.
Seamless	/ˈsiːmləs/	Adjective	Smooth and continuous, without any apparent gaps or spaces between one part and the next.	The seamless integration of the female bird's dull colors into the environment helps protect her from predators.
Illustrate	/ˈɪləstreɪt/	Verb	To make clear by using examples, charts, pictures, etc.; to explain or make something clear.	The professor effectively illustrated the concept of dimorphism using the example of birds of paradise.