TOEFL Speaking Task 2 Sample: Using the example from the lecture, explain evolution in action.

1.子项得分 Delivery: 2 Topic Development: 2.5 Language Use: 2

2.预估分数

19. 3.表达

从表达方面来看，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，保持稳定的节奏，并尽量减少不必要的停顿。此外，发言者在发音方面也有一些不准确之处，需要加强发音练习。

4.话题发展 从话题发展方面来看，发言者对于演讲中的例子进行了解释，但在组织结构和逻辑上还有待提高。建议发言者在回答问题时更加关注文章和听力材料中的关键信息，并尝试用更清晰、简洁的方式表达观点。同时，在提供支持或例子时，确保它们与主题紧密相关，并能有效支持论点。

5.语言使用

原文：The concept of evolution in action is precise that plants and animals evolve to change rapidly to in response to the rapid or sudden environmental changes. The concept of evolution in action demonstrates how plants and animals rapidly evolve in response to sudden environmental changes.（将句子结构进行了调整，使其更自然流畅。同时，用 "demonstrates" 替换了 "is precise that"，使表达更准确。）

The lecture takes on plants for example. The lecture provides an example with plants.（将句子结构进行了调整，使其更自然流畅。）

The main plant has a long stem in the ground. The mint plant has a long stem that grows from the ground.（对原句进行了修改，增加了 "mint" 这个关键词，并调整了句子结构。）

In there, people are always building some houses 100 years ago, then the plants longer more, people decided to cut them down, A hundred years ago, people started building houses with lawns, causing the mint plants to grow longer. As a result, people decided to cut them down,（对原句进行了修改，使其更符合听力材料的内容，并调整了句子结构。）

but in order to respond to the sudden environmental changes, they grow sideways, they grow horizontal, they grow to horizontal positions and they become more. but to adapt to the sudden environmental changes, the mint plants began to grow sideways, adopting a horizontal position.（对原句进行了修改，删除了重复的表达，并调整了句子结构。）

In this way, this is the concept about the sudden environmental changes. This example illustrates the concept of evolution in action in response to sudden environmental changes.（对原句进行了修改，使其更准确地表达了问题的回答。）

修订后的答案（140词）：

The concept of evolution in action demonstrates how plants and animals rapidly evolve in response to sudden environmental changes. The lecture provides an example with plants. The mint plant has a long stem that grows from the ground. A hundred years ago, people started building houses with lawns, causing the mint plants to grow longer. As a result, people decided to cut them down, but to adapt to the sudden environmental changes, the mint plants began to grow sideways, adopting a horizontal position. This example illustrates the concept of evolution in action in response to sudden environmental changes.

6.思维导图

• Evolution in action
  • Rapid adaptation
  • Sudden environmental changes
  • Example: Mint plants
    • Long stem
    • Lawnmowers
    • Horizontal growth

7.关键词