Using the examples from the lecture, explain the professor's main point about how animals use camouflage for communication.
🎧 听力讲座
Today we're going to talk about how animals use camouflage not just to hide from predators, but also to communicate with each other. This is called 'signal camouflage.' My main point is that some animals use their camouflage patterns to send specific messages to other members of their species, while still remaining hidden from predators. Let me give you two examples. First, consider the cuttlefish. These marine animals can rapidly change their skin color and texture to blend in with the ocean floor. However, during mating season, male cuttlefish use a special display: they show a striped pattern on one side of their body to warn rival males, while keeping the other side camouflaged to avoid attracting predators. This way, they communicate aggression without becoming vulnerable. Second, think about the chameleon. While we often think of chameleons as masters of disguise, they also use color changes to signal stress or submission. For instance, a chameleon that is feeling threatened will display bright, contrasting colors to warn others, but if it wants to avoid a fight, it will show duller colors. So, camouflage isn't just about hiding—it's a versatile tool for social interaction.
📝 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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