Question: Using the examples from the lecture, explain the professor's main point about aggressive mimicry.
🎧 听力讲座
Today we're going to talk about how animals use camouflage not just to hide from predators, but also to attract prey or mates. One key concept is 'aggressive mimicry,' where an animal uses its appearance to lure its own prey. For example, the anglerfish. It lives in the deep, dark ocean where it's nearly invisible. It has a glowing lure that dangles in front of its mouth. Smaller fish are attracted to the light, thinking it's a tasty snack, and as they approach, the anglerfish snaps them up. Another example is the orchid mantis. This insect resembles a beautiful orchid flower. It sits on a plant, and its petal-like legs and body attract pollinators like bees. When a bee lands on it expecting nectar, the mantis quickly grabs it and eats it. So, in both cases, the animals use their appearance to deceive others for their benefit, which is a fascinating adaptation.
📝 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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