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
TOEFL Speaking Task 4 Scoring Rubric
Content Accuracy: Accurately restate the professor's main point
Information Completeness: Include key examples and details from the lecture
Language Use: Grammatical accuracy, vocabulary range, clarity
Delivery: Fluency and clarity of speech
Scored 0-30 based on holistic scoring (original 0-4, scaled to 30).
Answering Tips
Take quick notes on the main point and two examples during the lecture
Use the 20-second preparation time to organize your response
Start by stating the professor's main point, then explain with examples
Use template phrases: "The professor explains... For example..."
Keep your response within 60 seconds
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