Question: Using the examples from the lecture, explain the professor's main point about behavioral flexibility.
🎧 听力讲座
Today, we're going to talk about a fascinating concept in animal behavior called 'behavioral flexibility.' This refers to an animal's ability to adjust its behavior to new or changing situations, rather than relying on fixed instincts. Behavioral flexibility is crucial for survival when environments change unexpectedly. Let me give you two examples. First, consider the raccoon. Raccoons are known for their ability to adapt to urban environments. In the wild, they forage near streams for food, but in cities, they have learned to open trash cans and even doors of houses to find food. This adjustment is not instinctual; it's learned through trial and error, showing flexibility. Second, think about the octopus. In laboratory settings, octopuses have been observed changing their hunting strategies based on the type of prey. For instance, when facing a slow-moving crab, they might pounce directly, but when encountering a fast shrimp, they use a more cautious, stealthy approach. These adjustments demonstrate how octopuses modify their behavior in response to specific challenges. So, in both cases, behavioral flexibility allows these animals to thrive in diverse or changing conditions.
📝 参考答案
托福口语 Task 4 评分标准
内容准确性(Content Accuracy):是否准确复述教授的主要观点
信息完整性(Information Completeness):讲座中的例子和关键细节是否完整
语言运用(Language Use):语法、词汇、表达准确性
表达(Delivery):流利度和清晰度
总分30分,原始分0-4分,最终换算为30分制。
答题技巧
听讲座时快速记笔记,抓住主要观点和两个例子
用20秒准备时间组织回答结构
回答时先点明教授的主要观点,再用例子解释
使用模板句式:"The professor explains... For example..."
控制在60秒内完成回答
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