TOEFL Speaking Task 3 Sample: Explain how the example from the professor's lecture illustrates the concept of vegetative propagation.
Historical user samples and AI evaluation results from an older TOEFL format.
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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
Vegetative Propagation Although most plants reproduce primarily through the production and dispersal of seeds, some species are able to reproduce, or propagate, in other ways. One way involves the production of new plants from parts of a parent plant, such as stems or roots. This is called *vegetative propagation* . Offspring formed through vegetative propagation are genetically identical to their parent plants. The fact that these plants are identical is of great interest in agriculture, since by taking advantage of this method of reproduction, farmers can consistently cultivate plants with certain desirable traits.
Question
Explain how the example from the professor's lecture illustrates the concept of vegetative propagation.
User Samples & Evaluation Results
Opens the speaking question list in the LingoLeap app, not this exact question. Practising needs a free account. AI scoring uses credits, except 3 free scores a day on Practice Test 1 (PQ26-1) questions.
1User Sample #1
Score23
User Sample #1
Evaluation Result
1.子项得分
-
交付 (Delivery): 3
-
语言使用 (Language Use): 3
-
话题发展 (Topic Development): 3
2.预估分数
- 总分: 23
3.表达 回答中的发音大部分清晰,但在某些地方可能需要稍作改进。建议在练习发音时,注意保持语速的一致性,尽量减少不必要的停顿。此外,在使用连接词时,要确保它们在句子中的位置正确,以提高整体表达的流畅度。
4.话题发展 回答内容基本上涵盖了阅读和听力材料中的关键信息,并对草莓植物如何通过营养繁殖进行了解释。然而,可以尝试更清晰地组织思路,例如先介绍营养繁殖的概念,然后再详细描述草莓植物的例子。此外,在解释过程中,可以尝试使用更多的连接词和过渡词汇,以使回答更加连贯和有条理。
5.语言使用原文:Vegetative propagation means one way involves the production of new plants from parts of a parent plant, such as stems or roots. Vegetative propagation is a method that involves producing new plants from parts of a parent plant, like stems or roots. (修改了句子结构,使其更自然流畅。)
When strawberry plants produce these runners, the runner has grown far away from the parent plant and develops new roots and grow into a new independent strawberry plant. When strawberry plants produce runners, they grow far from the parent plant, develop new roots, and become independent strawberry plants. (修改了句子结构和时态,使其更自然流畅。)
These plants grow from seeds that are all different. These plants, grown from seeds, exhibit various characteristics. (使用了更高级的词汇和表达方式。)
Some plants grow from seeds will grow berries that are different. Some plants grown from seeds will produce berries with different qualities. (修改了句子结构和词汇,使其更自然流畅。)
Then, you can choose the runners of strawberry plant that has large red sweet fruit and plant those runners in the ground to ensure that all your new strawberry plants will have exactly the same kind of fruit. You can select runners from a strawberry plant with large, red, sweet fruit and plant them to ensure that all new strawberry plants produce identical fruit. (修改了句子结构,使其更自然流畅,并使用了更高级的词汇。)
修订版(140字):
Vegetative propagation is a method that involves producing new plants from parts of a parent plant, like stems or roots. When strawberry plants produce runners, they grow far from the parent plant, develop new roots, and become independent strawberry plants. These plants, grown from seeds, exhibit various characteristics. Some plants grown from seeds will produce berries with different qualities. You can select runners from a strawberry plant with large, red, sweet fruit and plant them to ensure that all new strawberry plants produce identical fruit. This method is beneficial for farmers because it allows them to cultivate strawberries with consistent desirable traits, such as size, color, and taste.
6.思维导图
- Vegetative Propagation
- Method
- Producing new plants
- Parent plant parts (stems, roots)
- Strawberry plants
- Runners
- Grow far from parent plant
- Develop new roots
- Independent plants
- Runners
- Plants grown from seeds
- Various characteristics
- Different berry qualities
- Selecting runners
- Large, red, sweet fruit
- Consistent desirable traits
- Method
7.关键词
| Word | Phonetic Symbols | Parts of Speech | English definitions | Simplified Chinese translations | Sample sentences |
|---|---|---|---|---|---|
| Propagation | /ˌprɒpəˈɡeɪʃən/ | Noun | The process of producing new plants | 繁殖 | Vegetative propagation is an efficient method for producing new plants with consistent traits. |
| Runner | /ˈrʌnər/ | Noun | A long horizontal stem that grows from a parent plant | 地下蔓茎 | Strawberry plants produce runners that develop into independent plants with identical characteristics. |
| Trait | /treɪt/ | Noun | A characteristic or quality of a living thing | 特征 | Farmers prefer strawberry plants with desirable traits such as large size, bright color, and sweet taste. |
| Consistent | /kənˈsɪstənt/ | Adjective | Unchanging in nature, standard, or effect over time | 一致的 | Vegetative propagation ensures consistent fruit quality across all new strawberry plants. |
| Cultivate | /ˈkʌltɪveɪt/ | Verb | To prepare and use land for growing plants or crops | 栽培 | Farmers cultivate strawberry plants using runners to maintain consistent fruit quality in their crops. |
2User Sample #2
Score23
User Sample #2
Evaluation Result
1.子项得分
-
交付:3
-
语言使用:3
-
话题发展:3
2.预估分数
- 总分:23
3.表达 回答中的表达大致清晰,但在某些地方可能需要更好地组织句子。建议在练习时注意提高连贯性和流畅性,尽量减少不必要的停顿。同时,注意正确发音以避免拼写错误。
4.话题发展 回答内容基本上涵盖了阅读和听力材料中的关键信息,但可以进一步完善。建议在练习时注意提供更多具体的细节和例子来支持论点,并确保回答结构清晰、有条理。
5.语言使用Original Answer: Vegetative propagation refers to a way that involves the production of new plants from parts of a parent plant, for example, stems or roots. In the lecture, the professor takes the strawberry as an example. So, since the strawberry plants produce runners, which means that the runners have grown far away from the parent plant and it develops new roots into the soil. Additionally, since different plants produce fruit with different qualities, you can choose the runners of strawberry plants has bright red sweet fruit to ensure that you can obtain sweet and red fruit.
Corrected Answer: Vegetative propagation refers to a method involving the production of new plants from parts of a parent plant, such as stems or roots. In the lecture, the professor uses strawberries as an example. Strawberry plants produce runners, which grow far away from the parent plant and develop new roots in the soil. Furthermore, since different plants produce fruits with varying qualities, farmers can select runners from strawberry plants with bright red, sweet fruits to ensure that they cultivate strawberries with consistent taste and appearance. (将“way”改为“method”,使语言更准确;将“for example”改为“such as”,使句子更自然;将“takes”改为“uses”,使动词更恰当;将“which means that”改为“which”,使句子更简洁;将“has”改为“with”,使句子结构更清晰;将“you can”改为“farmers can”,使主语更明确;将“obtain”改为“cultivate”,使动词更贴切。)
Revised Answer (140 words): Vegetative propagation refers to a method involving the production of new plants from parts of a parent plant, such as stems or roots. In the lecture, the professor uses strawberries as an example to illustrate this concept. Strawberry plants produce runners, which are long horizontal stems that grow far away from the parent plant and develop new roots in the soil. These roots eventually grow into new, independent strawberry plants. Since different plants produce fruits with varying qualities, farmers can select runners from strawberry plants with desirable traits, such as bright red, sweet fruits. By planting these selected runners, farmers can ensure that they cultivate strawberries with consistent taste and appearance. This method of vegetative propagation allows for the consistent cultivation of plants with specific desirable traits in agriculture.
6.思维导图
- Vegetative Propagation
- Method
- Production of new plants
- Parent plant parts (stems, roots)
- Lecture Example
- Strawberries
- Runners
- Long horizontal stems
- Grow far from parent plant
- Develop new roots in soil
- Consistent cultivation
- Select runners with desirable traits (bright red, sweet fruits)
- Ensure consistent taste and appearance
7.关键词
| Word | Phonetic Symbols | Parts of Speech | English definitions | Simplified Chinese translations | Sample sentences |
|---|---|---|---|---|---|
| propagation | /ˌprɒpəˈɡeɪʃən/ | noun | The process of producing new plants from a parent plant | 繁殖 | Vegetative propagation is an effective method for producing plants with consistent traits. |
| runner | /ˈrʌnər/ | noun | A long, slender shoot that grows horizontally and develops roots at its nodes | 地下蔓茎 | Strawberry plants produce runners, which help them reproduce through vegetative propagation. |
| cultivation | /ˌkʌltɪˈveɪʃən/ | noun | The process of growing and nurturing plants for specific purposes | 栽培 | The cultivation of strawberries using vegetative propagation ensures consistent fruit quality. |
| desirable | /dɪˈzaɪrəbl/ | adjective | Having qualities that are attractive or worth having | 令人满意的 | Farmers select runners from strawberry plants with desirable traits, such as large, sweet fruits. |
| consistent | /kənˈsɪstənt/ | adjective | Unchanging in nature, standard, or effect over time | 一致的 | Vegetative propagation allows for the consistent cultivation of plants with specific desirable traits in agriculture. |
Opens the speaking question list in the LingoLeap app, not this exact question. Practising needs a free account. AI scoring uses credits, except 3 free scores a day on Practice Test 1 (PQ26-1) questions.
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