TOEFL Speaking Task 3 Sample: Explain how the example from the lecture ilustrates the concept of Tolerant ecotypes.

1.子项得分

• 交付：2

• 语言使用：2

• 话题发展：2

2.预估分数

• 总分：19

3.表达 从交付方面来看，发言者的语速较快，有时会出现不必要的停顿。建议发言者在练习时注意语速，保持一致的节奏，尽量减少不必要的停顿。此外，发言者在发音方面也需要加强练习，以避免拼写错误。

4.话题发展 从话题发展方面来看，发言者的回答内容较为简单，没有充分展示对Tolerant Ecotypes概念的理解。建议发言者在回答问题时更加关注阅读和听力材料中的关键信息，并尝试用更清晰、有条理的方式组织回答内容。同时，可以适当增加例子和论据来支持自己的观点。

5.语言使用

原文：The passage is talking about tolerance ecotest. The passage discusses tolerant ecotypes. (将"tolerance ecotest"改为正确的"tolerant ecotypes"。) It's about that some plants or animals move to a new environment, but they can't tolerate the new condition. It explains how certain plants or animals adapt to new environments that they initially cannot tolerate. (将句子结构进行了调整，使其更自然。) In this lecture, the professor gives an example of a kind of plant called Campion campion (将"Campion"改为小写的"campion"。). When the Campion campion is removed, it will die and cannot live. But if those Campion campion plants grow in a kind of soil called the contaminated soil, if they move, they can also live in the new place. And their seeds can grow in the contaminated soil as well. But if they just plant those seeds in normal soils, those plants cannot live and the seeds cannot grow up.

修订版（140词）：

The passage discusses tolerant ecotypes, explaining how certain plants or animals adapt to new environments that they initially cannot tolerate. In the lecture, the professor provides an example of a plant called campion. It is known that campion plants typically cannot survive in metal-contaminated soil. However, scientists discovered some campion plants growing in copper-contaminated soil. Interestingly, seeds from these plants were also able to germinate and grow in the contaminated soil. In contrast, when seeds from regular campion plants that had not been exposed to contaminated soil were planted in the copper-contaminated soil, they failed to grow. This example illustrates the concept of tolerant ecotypes, as the campion plants growing in contaminated soil adapted to their environment and passed on this tolerance to their offspring, creating a distinct group within the species that can survive in otherwise harmful conditions.

6.思维导图

• Tolerant Ecotypes
  • Adaptation
    • New environments
  • Example
    • Campion plants
      • Copper-contaminated soil
      • Seeds germination
      • Regular vs tolerant ecotypes

7.关键词