Question: Using the examples from the lecture, explain the professor's main point about aggressive mimicry in animals.
🎧 听力讲座
Today, we're going to talk about a fascinating behavioral adaptation in animals called 'mimicry.' Specifically, I want to focus on a type called 'aggressive mimicry,' where a predator or parasite uses imitation to lure or deceive its prey or host. This is quite different from protective mimicry, where an animal avoids being eaten. The key is that aggressive mimicry helps the mimic gain access to food or resources it couldn't easily get otherwise. Let me give you two examples. First, consider the anglerfish. It lives in the deep ocean where food is scarce. It has a fleshy growth on its head that glows and wiggles like a small fish. When a smaller fish is attracted to this 'bait,' the anglerfish quickly snaps it up. Second, there's the orchid mantis. Its body resembles a pink and white orchid flower. This mantis sits on flowers and waits. When a bee or butterfly comes to visit what it thinks is a flower, the mantis grabs it. In both cases, the predator uses deception to get its meal, showing how aggressive mimicry is an effective survival strategy.
📝 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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