Question: Using the examples from the lecture, explain the professor's main point about aggressive mimicry.
🎧 听力讲座
Now let's talk about a fascinating survival strategy in the animal kingdom: camouflage, but not the kind you might think. Many animals use camouflage to hide from predators or prey, but some use what we call 'aggressive mimicry' to deceive others. This is when an animal mimics a harmless or attractive object to lure in its prey. Let me give you two examples. First, the anglerfish. This deep-sea fish has a fleshy growth on its head that glows and wiggles like a small fish. When a smaller fish approaches to eat this 'bait', the anglerfish quickly snaps it up. Second, consider the orchid mantis. It has pink and white legs that resemble orchid petals, and it sits motionless on flowers. Bees and butterflies, attracted to the supposed blossom, land on it—only to become the mantis's meal. In both cases, the predators use deception to turn their appearance into a trap.
📝 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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