Question: Using the examples from the lecture, explain the professor's main point about how disruptive coloration helps animals.
🎧 听力讲座
Today we're going to talk about how animals use camouflage, but not just for hiding from predators. A fascinating phenomenon is called 'disruptive coloration.' The main point is that some animals have patterns that break up their body outline, making it harder for predators or prey to recognize them as a single object. Let me give you two examples. First, consider the zebra. When zebras stand together in a herd, their black-and-white stripes create a confusing, flickering pattern. This makes it very difficult for a lion to single out one individual, especially during a chase. Second, the tiger has dark stripes that break up its orange body against the dappled light of the forest. Even when a tiger is still, its stripes mimic the shadows and sunbeams, so a deer may not notice it until it's too late. So, disruptive coloration works by visually breaking up the animal's shape into smaller, less recognizable parts.
📝 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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