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提问人:网友sycslion 发布时间:2022-01-07
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听力原文: Today's discussion is about a common animal reaction--the yawning. The dictionar

y defines a yawn as "an involuntary reaction to fatigue or boredom". That's definitely true for human yawns but not necessarily for animal yawns. The same action, the yawn, can have quite different meanings in different species.

For instance, some animals yawn to intimidate intruders on their territory. Fish and lizards are examples of this. Hippos use yawns when they want to resolve a quarrel. Observers have seen two hippos yawn at each other for as long as two hours before they stop quarreling.

As for social animals like baboons or lions--they yawn to set up the pecking order within social groups, and lions often yawn to calm social tensions. Sometimes these animals yawn for a strictly physiological reason--that is to increase oxygen levels. And curiously enough, when they yawn for a physical reason like that, they do what men do-they try to stifle the yawn by looking away or by covering their mouths.

What's the main topic of the monologue?

A.Different animals' yawns.

B.Human's yawn.

C.Fish's yawn.

D.Social animals' yawns.

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更多“听力原文: Today's discussion is about a common animal reaction--the yawning. The dictionar”相关的问题
第1题
Everybody needs somebody's help, _____?

A、aren't they

B、isn't he

C、don't they

D、didn't they

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第2题
There ____ a meeting tomorrow.

A、will have

B、is going to be

C、is going to have

D、may have

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第3题
This sentence Good morning and thank you for making the effort to be here with us today. Please allow me to briefly introduce myself. My name is.... is the sample one for presenter to do________in the company presentation.

A、A. advertising

B、B. promotion

C、C. greeting and self-introduction

D、D. after-sales service

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第4题
What can be inferred from the passage?

A.We should be satisfied with our life.

B.We should develop good habits.

C.A reliable income makes the satisfactory standard, of living possible.

D.To provide for future expenditure is wise.

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第5题
What is true of the Lincoln-Douglas debates?

A.They were popular only in Illinois.

B.They took place during the presidential campaign.

C.They made Southern Democrats angry.

D.There was a highlight of the senate race.

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第6题

听力原文: "What do you think is really important in the United States? I really think that independence is one of the most important American values. From childhood we learn to be independent, to think for ourselves, to stand on our own two feet. American society allows its young people to move away form. their families at eighteen or nineteen years of age. Of course, not all young people leave home at eighteen, nor do most parents want their children to leave. However, living independently from one's family is an accepted part of the American value system.

15. Why do American young people usually leave their families at eighteen or nineteen?A. Their working place is too far away from their families.

What does the passage mainly discuss?

A.The speaker's opinion about American society.

B.The relationship between American parents and their children.

C.American young people's independence.

D.American social values.

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第7题
What eventually happens to the skin of the rattlesnake?

A.The snake sheds its skin.

B.The skin becomes transparent.

C.The skin hardens and releases a poisonous liquid.

D.The snake forms an additional protective skin over the original.

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第8题
A prominent group of British university teachers this week called on the funding councils to stop supporting low-quality research and put money into improving university teaching instead. The National Academic Policy Advisory Group, which includes members from the Royal Society, the Royal Academy of Engineering and the Conference of Medical Colleges, insists that all re- search money should be spent on world- class work.

The funding councils' Research Assessment Exercise (RAE) judges the quality of research carried out in individual university departments, and rates it on a scale of l to 5. In the last assessment, in 1992, departments ranked as low as 2 received funding. The group says this should not happen in this years exercise. Funding councils have not yet announced how they will distribute money from now on.

In a report called Research capability of the University System launched this week the group claims that funds are needed to pay for the “professional development” of university teachers who are not active in research, to help them keep up with their subject and improve the courses they teach.

It recommends that about 50 million, including money which is currently used to fund research in departments ranked at level 2, should be used to pay for this. It advises that the money should go only to those departments that are not competing for research money through the RAE.

The group believes that some universities have been expanding their research departments in order to attract research money. Some universities, it claims, are better suited to teaching than research, and should be encouraged to develop their expertise as educators.

“There's no use pretending that 104 universities could have the same job in life,” says David Harrison, master of Selwyn College, Cambridge, who chaired the group . A university could have some departments that are strong on research and others that are known for their top -grade teaching, he says.

But some people have some doubts about the group's recommendations. “It seems to be about developing further the distinction between research and non - research universities.” says Paul Cottrell of the Association of University Teachers, "If professional development money is a good idea, then it's a good idea for all university teachers."

The National Academic Policy Advisory Group says that money should be given to.

A.all the teachers

B.the best researchers.

C.the best teachers.

D.the needy universities .

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第9题
What happened to one of the suspects in the 1996 incident?

A.He was watching a movie

B.He wore part of his trousers.

C.He was taped.

D.He was identified because of his mask.

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第10题
What encouraged the FBI when they tried to prove that the suspect was guilty?

A.Pairs of jeans could be to91d from one another.

B.An expert witness supported the FBI

C.The defense gave a call to the jeans exporter.

D.All jeans have common patterns.

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