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Howling is a behavior commonly observed among a wolf nark. An animals, wolves work together to hunt and rely on howling was an important means of communication each other. There are different explants of a wolf’s howl and it appears that there may be more to discover.      One theory is that wolves howl to bend better together. It’s almost as if howling together helps the pack stay together. Perhaps something similar to people feeling a sense of involvement with each other when singing a song together . But this theory may be wrong, explains Fred H. Harington, a professor who studies wolf behavior.     Indeed, there have been tines when wolves have been seen one moment howling in a exhorts, and the next, quarreling anions each other. It appears that usually the lowest-tanking menthes of the pack may actually be “punished” for
Joining in the churs at times. So is howling a way to strcagthen a social boad or just a way to reconfirm status among its members? ——Why do welves howl for sure?
What is cleat, however, is that howling is often used among packmates to locate each other. Hunting grounds are distant and it happens that woloves may separate from one another at times. When this happens, howling appcars to be an ercellent means of gathering.
Howling, interestingly, is a contagious behaviour. When one wolf starts to howl, very likely others will follow. This is often seen to occat in the morning, as if wolves were doing some sotr of “roll rall”where wolves all howl togeter to howl, very likely others will follow. This is often seen to occar in the morning, as if wolves were doing w some sotr of “roll call”where wolves all howl together to repotr their pteence.
.What the por similarity between wolves’ how humaes ting in chorus?

A.The act of calling each other.
B.the sense of accomplishment.
C.The act of hunting for something.
D.The sense of belonging to a group.

.Why does Harrington think the“secial boad”theory may be wrong?

A.Wolves separate from each other after howling.
B.Wolves tend to protect their hunting grounds.
C.Wolves sometimes have quarrels after howling together.
D.Wolves of low rank are encouraged to join in the chorus.

Reseatchers are sure that wolves often howl to______.

A.show their ranks
B.find their companion
C.report the missing ones
D.express their lonelingess

“Howling… is a contagious behaviour”(in the last paragraph)means_ ______.

A.howling is a signal for hunting
B.howling is a way of communication
C.howling aften occurs in the morning
D.howling spreads from one to another
科目 英语   题型 阅读理解   难度 中等
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For many parents, raising a teenager is like fighting a long war, but years go by without any clear winner. Like a border conflict between neighboring countries, the parent-teen war is about boundaries: Where is the line between what I control and what you do?
Both sides want peace, but neither feels it has any power to stop the conflict. In part, this is because neither is willing to admit any responsibility for starting it. From the parents’ point of view, the only cause of their fight is their adolescents’ complete unreasonableness. And of course, the teens see it in exactly the same way, except oppositely. Both feel trapped.
In this article. I’ll describe three no-win situations that commonly arise between teens and parents and then suggest some ways out of the trap. The first no-win situation is quarrels over unimportant things. Examples include the color of the teen’s hair, the cleanliness of the bedroom, the preferred style of clothing, the child’s failure to eat a good breakfast before school, or his tendency to sleep until noon on the weekends. Second, blaming. The goal of a blaming battle is to make the other admit that his bad attitude is the reason why everything goes wrong. Third, needing to be right, It doesn’t matter what the topic is –politics. The taws of physics, or the proper way to break an egg –the point of these arguments is to prove that you are right and the other person is wrong. for both wish to be considered an authority—someone who actually knows something — and therefore to command respect. Unfortunately, as long as long as parents and teens continue to assume that they know more than the other, they’ll continue to fight these battles forever and never make any real progress.
Why does the author compare the parent-teen war to a border conflict?

A.Both can continue for generations.
B.Both are about where to draw the line
C.Neither has any clear winner
D.Neither can be put to an end

What does the underlined part in Paragraph 2 mean?

A.The teens blame their parents for starting the conflict.
B.The teens agree with their parents on the cause of the conflict
C.The teens cause their parents of misleading them
D.The teens tend to have a full understanding of their parents

Parents and teens want to be right because they want to ________.

A.give orders to the other
B.know more than the other
C.gain respect from the other
D.get the other to behave properly

What will the author most probably discuss in the paragraph that follows?

A.Causes for the parent –teen conflicts
B.Examples of the parent –teen war.
C.Solutions for the parent –teen problems
D.Future of the parent-teen relationship

“Image is everything.” An entire industry has been built upon the assumption that image is everything, but when it comes down to it, an appealing image is not enough.If there is no substance(事实) behind the image, the product, service or person will fail eventually.
First of all, one should consider how important image is in the selling of products and services.Advertising agencies have raised the art of creating an image to a state of near perfection.Public concept of that product or service is certainly managed by the images created by the advertising agencies.But if the product or service does not live up to the image that was created, the customer will be very dissatisfied and possibly ask for their money back.For example, the Arthur Andersen accounting firm had spent decades building up an image of trustworthiness.But the recent scandal (丑闻) showed that behind that image, it cheated in business practices.Despite the previous positive image, the firm is being accused of criminal actions and it will probably not survive as a business unit.Although the image had been nearly perfect, the reality behind the image has led to the downfall of the world famous accounting firm.
Similarly, personal advisers can build up a public image for politicians and movie stars.Putting out positive news releases, making sure that only the best photographs are published, and ensuring that the person is seen in all the right places can build up a very positive image in the view of the general commons.But once again, history is filled with examples of both politicians and movie stars that fell from grace like the story of the Hollywood actor giving in to the pressures of fame and fortune.With people, just as with products and services, image is certainly important, but without positive substance behind the image, failure is close.
To summarize, it is clear that an appealing image is extremely important to success, whether that image is related to selling a product or service or to the “selling” of a person.But image is only half of the equation.What lies behind that image is every bit as important as the image itself —— the person or product must deliver on that image or there is little chance for long-term success.
The downfall of the Arthur Andersen accounting firm is due to ________.

A.its dishonesty in business B.its previous images
C.its bad management D.its poor service

Why did some famous people fall from grace?

A.Their images were not well built up
B.They failed to live up to their images.
C.They felt much pressure from the public
D.They paid little attention to fame and fortune.

The structure of the passage is ________.
A: Argument P: Point C: Conclusion

The author tries to argue that _________.

A.image creates everything B.image is the key to success
C.truth is unlikely ever to be equaled D.truth and image are equally important

In the next few years, battery technology is going to grow rapidly.
No more charging your smart phone every day...
No more “range anxiety” for electric cars, as new lithium batteries (锂电池)allow them to drive hundreds of miles on a single charge, just like a tank of gas.
And a tiny Chinese company is to be the leader of it all.
It already counts Motorola, Nokia, and Samsung as customers for its advanced batteries.
But the real money is going to come when it starts selling electric cars.
Right now, the stock is trading at an extreme discount, offering in-the-know investors a chance to get in and make a killing.
You need to know all the details about this opportunity today — and not a day later.
To do that, and to gain access to all the information you'll need to invest confidently, simply sign up for the free e-Letter from Energy & Capital by entering your email address below...
Once you do, we'll rush you our latest report, China's $2.00 Lithium Linchpin.
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What does the underlined part “make a killing” in Paragraph 7 mean?

A.Beat all other businesses.
B.Make a lot of money in a short time.
C.Force other batteries to withdraw from market.
D.Be the business leader in battery making.

What is the possible problem with online subscribing?

A.The giving-away of privacy.
B.Getting lots of junk emails.
C.Becoming a member of some organization unwillingly.
D.Not being able to unsubscribe.

Where is this material probably from?

A.A magazine. B.A newspaper. C.A website. D.A booklet.

This passage is mainly to ______.

A.advertise new batteries B.find potential investors
C.promote Energy & Capital D.sell new technology

Two men, Alan and Henry, both seriously ill, shared a hospital room. Alan was allowed to sit up in his bed and his bed was next to the room’s only window. Henry had to spend all his time flat on his back.
The men talked for hours, of their wives, families, their homes and their jobs. And every afternoon when Alan, in the bed next to the window, could sit up, he would pass the time by describing to his roommate all the things he could see. Ducks and swans played on the water while children sailed their model boats. Lovers walked arm in arm among flowers. Trees and skyline could be seen in the distance. As he described all this, Henry, on the other side of the room, would close his eyes and imagine the scene.
One warm afternoon Alan described a parade (游行) passing by. Although Henry could not hear the band, he could see it in his mind. Unexpectedly, an alien though: entered his head: why should he have all the pleasure of seeing everything while I never got to see anything? It doesn’t seem fair. Henry felt ashamed at first. But as the days passed and he missed seeing more sight, his envy grew and soon let him down. He began to find himself unable to sleep. He should be by that window ---- and that thought now controlled his life.
Late one night, as he lay staring at the ceiling. Alan began to cough. He was choking. Henry watched in the dim room as the struggling man tried hard to reach for the button to call for help. Listening from across the room, he never moved, never pushed his own button which would have brought the nurse running. In less than five minutes, the coughing and choking stopped, along with the sound of breathing. Now, there was only silence ---- deathly silence.
As soon as it seemed appropriate, Henry asked if he could be moved next to the window. The nurse was happy to make the switch and after making sure he was comfortable, she left him alone.
Slowly, painfully, he struggled to take his first look. Finally, he would have the joy of seeing it all himself. He looked out, but faced a black wall.
Judging from the passenger, the meaning of the underlined word “alien” in Paragraph 3 is ______.

A.disappointing B.sudden C.new D.strange

What finally happened to Alan?

A.He was moved to another room. B.He died.
C.He switched his bed with Henry. D.He was very sick.

Henry, who had his bed switched, had expected _____.

A.to see the blank wall
B.to feel the joy of seeing the outside world
C.to feel the joy of breathing fresh air
D.to see more than Alan

Which of following words could be used to describe Alan?

A.Kind-hearted and imaginative B.Well-informed and humorous
C.Talkative and funny D.Cold-hearted and indifferent

It has been argued that an infant under three who is cared for outside the home may suffer because of the separation from his parents.The British psychoanalyst John Bowlby believes that separation from the parents during the sensitive "attachment" period from birth to three may scar (留下疤痕) a child's personality and incline to emotional problems in later life.Some people have drawn the conclusion from Bowlby's work that children should not be sent to day care before the age of three, and many people do believe this.But there are also arguments against such a strong conclusion.
Firstly, anthropologists (人类学家) point out that the hidden love between children and parents found in modem societies does not usually exist in traditional societies.For example, we saw earlier that among the Ngonis the father and mother of a child did not raise their infant alone.But traditional societies are so different from modern societies that comparisons based on just one factor are hard to understand.
Secondly, common sense tells us that day care would not be so widespread today if parents and caretakers found that children had problems with it.But Bowlby's analysis raises the possibility that early day care has delayed effects.The possibility that such care might lead to more mental illness or crime 15 or 20 years later can only be noticed by the use of statistics.Statistical studies of this kind have not yet been carried out, and even if they were, the results would be certain to be complicated and controversial.
Thirdly, in the last decade, there have been a number of careful American studies of children in day care, and they have reported that day care had a neutral of slightly positive effect on children's development.But tests that have had to be used to measure this development are not widely enough accepted to settle the issue.
This passage is mainly talking about________.

A.children's personality
B.advantages of infants' early care
C.infants' education
D.negative effect of infant school

The phrase "day care in the first paragraph probably means_____.

A.nursing school B.baby-sitter
C.boarding school D.primary school

According to Bowlby, children under the age of three______.

A.should not be sent to school
B.should be cared for outside the home
C.will not suffer fro m parental separation
D.don't mind who will look after them

The argument against Bowlby's conclusion shows that___.

A.children have problems with day care
B.there is no negative effect on infants who go to school before three
C.there is a long-term effect on infants who go to school before three
D.children who are sent to school before three are sent to mental illness

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