Question: Using the examples from the lecture, explain the professor's main point about how some predators use mimicry as a hunting strategy.
🎧 听力讲座
Today, we're going to talk about a fascinating concept in biology called 'mimicry'—specifically, how certain species use mimicry not just for protection, but for hunting. The main point is that mimicry can be an active strategy for predators to gain an advantage over their prey. Let me give you two examples. First, consider the anglerfish. It lives in the deep, dark ocean where light is scarce. It has a special fin that glows and dangles in front of its mouth, mimicking a small, attractive worm or fish. When a curious prey fish swims closer to inspect the 'meal,' the anglerfish quickly snaps it up. Second, there's the orchid mantis. This insect lives in tropical areas and has a body that resembles a pink or white orchid flower. It sits motionless among real flowers, and when a bee or butterfly lands on it thinking it's a flower, the mantis grabs it with its powerful front legs. So, you see, in both cases, the predators use visual deception to lure their prey, turning mimicry into a hunting tool.
📝 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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