托福TPO69听力Lecture3原文+题目+答案+MP3音频下载

托福TPO69听力Lecture3原文+题目+答案+MP3音频下载

Listen to part of a lecture in a biology class.

P：Ok So, we've seen some examples of animals whose vision is very different from our own. Now, I'd like to play around with this idea. And animals, visual perception, the way it sees the world has a profound effect on the way it behaves. And When we try to understand the behavior of an animal whose perception is different from ours, we're interpreting their behavior from our perspective. For that reason, some of our current thinking about animal behavior which have not taken perceptual differences into account may be biased. So before we get started, who can remind us of, some of these differences, Jack.

Jack：Well,Last week we talked about insects with compound eyes. And I remember this picture in the book that showed you how each I was actually seeing hundreds of images of an object when we'd see only one.

P：I'm glad you brought up that example, because the animal I want to discuss today also has compound eyes. That's the fiddler crab. The fiddler crab has been studied quite a bit by researchers interested in this connection between perception and behavior. One reason is that its quite easy to observe. It lives out in the open on mud flats and has a very limited territory. In fact, it rarely ..................余下TPO69L3听力省略！

1、(单选题) What is the purpose of the lecture?

A.To analyze the relationship between an animal's visual perception and its body structure

B.To make students aware of potential bias in interpretations of animal behavior

C.To argue that human vision is inferior to the vision of certain animals

D.To evaluate methods researchers use to determine the characteristics of an animaPs vision

2、(单选题) What feature does the professor describe as being common to both an insect and a fiddler crab?

A.They both have compound vision.

B.They both have a panoramic field of vision.

C.They both have eyes on stalks.

D.They both defend their territory in a similar manner.

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