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  • Discuss whales'breath托福听力原文翻译及问题答案

    时间:2023-07-11 12:40:20 来源:www.ivyeducation.cn

    Discuss whales'breath托福听力原文翻译及问题答案

    一、Discuss whales'breath托福听力原文:

    NARRATOR:Listen to a conversation between a student and his biology professor.

    MALE STUDENT:Well,you know,I am writing that paper about whales and the path they travel as they swim through the ocean,their migration patterns.

    FEMALE PROFESSOR:Yes.I remember.

    MALE STUDENT:And well,I was thinking about it and I realized I don't understand how they hold their breath underwater.It's a little crazy for me to be writing about migration patterns without actually knowing how they stay underwater for so long.

    FEMALE PROFESSOR:Did you do any research to find out how they do it?

    MALE STUDENT:Yeah,I did.I searched on the internet and there was a lot of information about whales,their habitats,the way they communicate,you know,their songs.But if there was anything about whales and how they hold their breath,I missed it.I've got a bunch of books.Actually,I have got so much information,it's a little overwhelming.

    FEMALE PROFESSOR:I am surprised there is nothing about it in any of those books.MALE STUDENT:Well,to be honest,l've only skimmed them so far.I am still working on finding sources.

    FEMALE PROFESSOR:OK.I know I encourage everyone in class to look at a substantial number of sources,but I don't want you to get overwhelmed.Looking at a number of sources gives you a good knowledge base,but students only have a limited amount of time to work on each paper.I don't expect you to read a dozen books on whales for this assignment.Focus on just a few.

    MALE STUDENT:Ok.Thanks.

    FEMALE PROFESSOR:You know,since you are already here.I can give you a quick summary of how whales hold their breath underwater.It's just a matter of certain adaptations in their anatomies,specifically in their circulatory system.

    MALE STUDENT:So the blood flow is what makes the difference?

    FEMALE PROFESSOR:Yes,and in a couple of ways.First,blood makes up a larger share of a whale's weight than in other mammals.

    MALE STUDENT:So they can store more oxygen because they have more blood?

    FEMALE PROFESSOR:Yes,but that's only part of it.They also have a greater capacity than land animals to store oxygen in their blood.

    MALE STUDENT:So how does having more oxygen in their blood help them stay underwater longer?

    FEMALE PROFESSOR:It's the way the whale's blood carries oxygen to the rest of its body.Whales carefully conserve their oxygen when underwater in a couple of ways.When a whale dives,its metabolic rate drops,causing its heartbeat to slow down.And the blood flow to its muscles and some of its non-vital organs,like its kidneys,is also cut off.A whale's muscles and non-vital organs are able to function without oxygen for an extended period of time.MALE STUDENT:I see...Well,now I can concentrate on my topic!

    二、Discuss whales'breath托福听力中文翻译:

















    三、Discuss whales'breath托福听力问题:

    Q1:1.Why does the man go to see the professor?

    A.To find out how to distinguish between different types of whale songs

    B.To request permission to change the topic of his paper

    C.To discuss the difference between using the internet and using books to find sources

    D.To get help locating some information for his paper

    Q2:2.What is the topic of the man’s paper?

    A.How whales hold their breath

    B.Whale migration patterns

    C.Characteristic of whale habitats

    D.The differences between the circulatory system of whales and that of other Mammals

    Q3:3.What is the professor’s attitude toward the man’s question about how whales hold their breath?

    A.She thinks he does not need to spend a lot of time looking for the answer.

    B.She is surprised because she has already addressed this question in class.

    C.She dismissed it as unimportant.

    D.She is pleased that has a plan to obtain the answer himself.

    Q4:4.Why does the professor mention the limited time students have to complete their papers?

    A.To suggest that looking at research on the internet is a good way to save time

    B.To point out that the library has reduced the amount of time it is open each day

    C.To indicate her expectations for the amount of research to be done for the paper

    D.To emphasize the importance of starting to write the paper a couple of weeks before it is due

    Q5:5.According to the professor,how does a whale conserve oxygen while underwater?[Click on 2 answers.]

    A.Its heart rate decreases.

    B.Its lung capacity temporarily increases.

    C.It slows the pace of its swimming.

    D.Blood flow to certain organs is decreased.

    四、Discuss whales'breath托福听力答案:







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