托福听力tpo51section1对话讲座原文+题目+答案+译文Conversation1 (1)
原文 (1)
题目 (3)
答案 (5)
译文 (5)
Lecture1 (7)
原文 (7)
题目 (9)
答案 (11)
译文 (11)
Lecture2 (13)
原文 (13)
题目 (15)
答案 (17)
译文 (17)
Conversation1
原文
NARRATOR:Listen to part of a conversation between a student and her biology professor.
MALE PROFESSOR:So the assignment is to reproduce one of the animal camouflage experiments we read about in our text book.Which experiment did you pick?
FEMALE I was wondering if I could try to reproduce an experiment that's kinda the opposite of what was discussed in the textbook?
MALE PROFESSOR:So,instead of how and why an animal might hide itself,you want to do something
about why an animal might want to be seen?Hmmm.Tell me more.
FEMALE STUDENT:Well,I got the idea from one of the journals you said we should look at…it's an experiment about,um,they called them eyespots in the article?
MALE PROFESSOR:Eyespots,sure,the patterns on the wings of moths and butterflies that are generally believed to scare off predators because they look like big eyes.
FEMALE STUDENT:Yeah,except the article was about an experiment that disputes that theory.
MALE PROFESSOR:Well,we know that the markings do scare the birds,but the idea that the spots look like eyes is,well that's just a commonly held belief.
FEMALE STUDENT:So—that's not even based on research?
MALE PROFESSOR:Well,this whole idea of moth or butterfly markings being scary because they look like eyes rests on how we imagine that their predators—like birds —perceive the markings.And we can never really know that.All we can do is observe bird behavior.But tell me more about the experiment.
FEMALE STUDENT:OK,so the experiment looked at the shapes of the markings on moth wings.The re
searchers wanted to know if the markings that were round or eye-shaped were more effective at deterring predators than square or rectangular markings.
MALE PROFESSOR:OK…
FEMALE STUDENT:Yeah.So,they attached food to paper models of moths,with different shaped marks drawn on the wings,to see how birds reacted.And what's interesting is,they realized that the round marks were not more effective at scaring birds than other shapes.
MALE PROFESSOR:Were they less effective?
FEMALE STUDENT:No,they were about but what researchers did
determine is that larger markings are more effective than smaller markings at scaring off prey.They called this phenomenon“visual loudness.”
MALE PROFESSOR:Visual loudness,huh.Well,I guess it's not all that shocking,if you think about it.
FEMALE STUDENT:So,anyway,is it OK?Can I repeat this experiment and write about it?
MALE PROFESSOR:Yes,I think that'll work.The problem I foresee is,well,where? This is an You'll have a hard time finding a good place to set up the experiment.
FEMALE STUDENT:Oh,I-I wasn't planning on doing it on campus.I'm going home for spring break,and my family lives in the country,far from the nearest city.I can set it up in the backyard.
MALE PROFESSOR:Good idea.Except one week is not a lot of time.So you'll need to make some adjustments to have enough data.I'd set up the experiment near a bird feeder,and get in as much observation time as you can.
题目
1.Why does the student talk with the professor?
A.She wants permission to revise an experiment that she conducted earlier.
B.She has a question about the findings of an experiment in the textbook.
C.She wants to reproduce an experiment that is not in the textbook.
D.She would like some advice about how to study butterfly and moth behavior.
2.What does the professor say is a common assumption about certain markings on
butterfly and moth wings?
A.That the markings are usually hidden from view
B.That the markings attract some kinds of birds more than others
C.That some birds perceive the markings as large eyes
D.That butterflies and moths use the markings to attract mates
3.What were the results of the experiment that the student describes?[Click on2 answers.]
A.Birds reacted to round markings the same way they reacted to square markings.
B.Large markings scared birds more than small markings did.
react to中文翻译C.Most birds ignored markings that looked like eyes.
D.Birds were attracted to more colorful markings.
4.Why does the professor mention a bird feeder?
A.To suggest a strategy that may help the student carry out her task successfully
B.To recommend a place on campus that is suitable for the student's project
C.To discuss another experiment that has yielded surprising results
D.To point out a problem in the design of the original experiment
5.What can be inferred about the student when she says this:
Professor:Well,we know that the markings do scare the birds but the idea that the spots looked like eyes is……well,that is just a commonly held belief.
Student:So,that’s not even based on research?
A.She is skeptical about what the professor just told her.
B.She just realized that she designed her experiment incorrectly.
C.She is worried that she misunderstood something that she read.
D.She had assumed that there was scientific evidence for the theory.
答案
C C AB A D
译文
旁白：请听一段学生和其生物学教授之间的对话。
教授：所以，我们的作业就是来重复课本上动物伪装的实验之一。你选择哪个实验呢？
学生：嗯，我在想我可不可以去重复一个实验……一个和课本上的实验相反的实验呢？
教授：所以你想去做一个为什么动物会有意暴露自己的实验，而不是一个动物如何及为什么伪装自己的实验？嗯？多说一点。
学生：嗯，我是从你推荐我们阅读的期刊上获得这个想法的。这是一项关于……关于期刊上他们口中所说的眼睛昆虫的实验？
教授：眼睛昆虫，当然，飞蛾和蝴蝶身上的图案通常会被认为可以吓退捕食者，因为它们看起来像是大
大的眼睛？
学生：是的。不过这篇文章是关于一项反驳这个理论的实验的。

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。