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TPO63综合口语Task3阅读原文+听力原文+MP3+范文

2020-07-24 来源:toefl.socool100.com

TPO63综合口语Task3阅读原文+听力原文+MP3+范文

TPO63综合口语Task3阅读原文+听力原文+MP3+范文

TPO63综合口语Task3阅读原文:

Near Field Sound Detection

Some animals are able to use sound to avoid predators. When sound is produced, it creates vibrations in the surrounding air. These vibrations are known as near-field sounds because they originate: or begin, near the sound source. Most animals are unable to detect these kinds of sounds; however, some animals have an ability known as near-field sound detection This ability allows certain animals to detect vibrations or near-field sounds produced by potential predators Animals with near-field sound detection abilities have special physical features that allow them to sense an approaching predator and take action to protect themselves.

TPO63综合口语Task3听力原文:

Now listen to part of a lecture in a biology class.

Professor:

Okay, so let’s look at an example of this with insects.Take caterpillars for example.Some caterpillars have this ability. Now, say there’s a caterpillar crawling along on a branch in a tree, just minding its own business. And then some dangerous insect, like a wasp, flies toward the tree. The caterpillar could be in trouble. The wasp might try to eat the caterpillar. It’s a threat.

Now, a lot of other animals may not hear the wasp or know that it’s close by. But fortunately, for the caterpillar, there are these really tiny hairs on the caterpillar’s skin, little hairs that stick out into the air around the caterpillar. And when the wasp flies toward the tree, the beating of its wings makes a sound, which sends out vibrations,。。。此处省略约250字

TPO63综合口语Task3题目:

Explain how the example from the professor’s lecture illustrates the concept of near-field sound detection.

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