题目内容
（请给出正确答案）
How many stages are there before men were evolved？
A．Four.
B．Six.
C．Five.
D．Three.
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The importance of the product life cycle to marketers is this: Different stages in the product life cycle call for different strategies. The goal is to extend product life so that sales and profits do not decline. One strategy is called market modification. It means that marketing managers look for new users and market sections. Did you know, for example, that the backpacks that so many students carry today were originally designed for the military？
Market modification also means searching for increased usage among present customers or going for a different market, such as senior citizens. A marketer may re-position the product to appeal to new market sections.
Another product extension strategy is called product modification. It involves changing product quality, features, or style. to attract new users or more usage from present users. American auto manufacturers are using quality improvement as one way to recapture world markets. Note, also, how auto manufacturers once changed styles dramatically from year to year to keep demand from falling.
第26题：According to the passage, when people grow fond of one particular brand of a product, its sales will ________.
A) decrease gradually
B) remain at the same level
C) become unstable
D) improve enormously
nd economics for the purpose of helping them prepare to succeed in a world economy.11 The organization is the largest of its kind.
Junior Achievement has gone through different stages in its development. 12 It was started by two business leaders, Horace Moses and Theodore Vail, and Senator Murray Crane in 1919 in Springfield, Massachusetts. The organization started with a small number of children aged ten to twelve. For more than 50 years, Junior Achievement programs met after school as a group of business clubs. But in 1975, Junior Achievement began to offer classes during school hours. Many more young people joined the organization once it began to teach business skills as part of the school day. In 2004, Junior Achievement Worldwide was formed.
The Junior Achievement programs teach about businesses, how they are organized, and how products are made and sold.13 The programs also teach about the American and world economies and business operations. Young people can learn how entrepreneurship works by operating their own companies. For instance, the students develop a product and sell shares in their company. They use the money to buy the materials they need to make their product, which they then sell. Finally, they return the profits to the people who bought shares in the company. It is reported that in the United States alone, there are more than 22,000 places that hold Junior Achievement events currently. According to Junior Achievement, about 287,000 volunteers support its programs around the world.
1.This passage is about Junior Achievement，an international movement to educate young people about businesses and economics.（）
2.Junior Achievement was started by two business leaders in Massachusetts.（）
3.Classes during school hours have been available in Junior Achievement for more than 60 years.（）
4.Junior Achievement has been worldwide since 1919.（）
5.Volunteers of Junior Achievement teach about the American and world economies and business operations.（）
Why do we Dream？
For centuries, we've tried to figure out just why our brains play these nightly shows for us. Early civilizations thought dream worlds were real, physical worlds that they could enter only from their dream state. Researchers continue to toss around many theories about dreaming. Those theories essentially fall into two categories:
The idea that dreams are only physiological stimulations
The idea that dreams are psychologically necessary
Physiological theories are based on the idea that we dream in order to exercise various neural connections that some researchers believe affect certain types of learning. Psychological theories are based on the idea that dreaming allows us to sort through problems or events of the day or things that are requiring a lot of our attention. Some of these theorists think dreams might be prophetic. Many researchers and scientists also believe that perhaps it is a combination of the two theories.
Dreaming and the Brain
When we sleep, we go through five sleep stages. The first stage is a very light sleep from which it is easy to wake up. The second stage moves into a slightly deeper sleep, and stages three and four represent our deepest sleep. Our brain activity throughout these stages is gradually slowing down so that by deep sleep, we experience nothing but delta brain waves--the slowest brain waves. About 90 minutes after we go to sleep and after the fourth sleep stage, we begin REM sleep.
Rapid eye movement(REM)was discovered in 1953 by University of Chicago researchers Eugene Aserinsky, a graduate student in physiology, and Nathaniel Kleitman, Ph. D. , chair of physiology. REM sleep is primarily characterized by movements of the eyes and is the fifth stage of sleep.
How to Improve Your Dream Recall
It is said that five minutes after the end of a dream, we have forgotten 50 percent of the dream's content. Ten minutes later, we've forgotten 90 percent of its content. Why is that？ We don't forget our daily actions that quickly. The fact that they are so hard to remember makes their importance seem less.
There are many resources both on the Web and in print that will give you tips on how to improve your recall of dreams. Those who believe we have a lot to learn about ourselves from our dreams are big proponents of dream journals. Here are some steps you can take to increase your dream recall:
When you go to bed, tell yourself you will remember your dreams.
Set your alarm to go off every hour and a half so you'll wake up around the times that you leave REM sleep--when you're most likely to remember your dreams.(Or, drink a lot of water before you go to bed to ensure you have to wake up at least once in the middle of the night!)
Keep a pad and pencil next to your bed.
Try to wake up slowly to remain within the "mood" of your last dream.
Common Dream Themes and Their Interpretations
Being naked in public
Most of us have had the dream at some point that we're at school, work or some social event, and we suddenly realize we forgot to put on clothes! Experts say this means:
We're trying to hide something(and without clothes we have a hard time doing that).
We're not prepared for something, like a presenta
A．Y
B．N
C．NG
The【C4】______is the "little girl" stage in which the daughter loves and idolizes (崇拜) her father【C5】______he were a god or hero without【C6】______. And her father loves his daughter【C7】______blindly, seeing her as an "oasis (绿洲) of smiles" in a hard, cold world. Then comes the second stage. It starts during adolescence and【C8】______for many years. Here, the little girl begins to rebel against Daddy and【C9】______his authority. He reacts with anger and【C10】______.
And the final stage comes【C11】______a woman reaches the age of about thirty. At this time the daughter sees her father not as a hero【C12】______as a fool, but learns to accept him【C13】______he is, for better or worse. And Daddy forgives her, too, for not being the【C14】______little girl he had once hoped for.
But not all daughters go through all three stages, and it is here that the key to a woman's career【C15】______. Those girls who never get past the first "oasis of smiles" stage,【C16】______all their lives seek out their fathers' love and approval, will never【C17】______in the business world. They will remain at the secretarial (秘书的)【C18】______all their lives.
It is only those women who get to the final stage, those who【C19】______and accept Daddy's faults, who can even hope to be 【C20】______enough and independent enough to become a candidate for top-management.
【C1】
A．who
B．which
C．that
D．it
As it is, sleep is so undervalued that getting by on fewer hours has become a badge of honor. Plus, we live in a culture that_____(36)to the late-nighter, from 24-hour grocery stores to online shopping sites that never close. It's no surprise, then, that more than half of American adults don't get the 7 to 9 hours of shut-eye every night as_____(37)by sleep experts.
Whether or not we can catch up on sleep-on the weekend, say-is a hotly_____(38)topic among sleep researches. The latest evidence suggests that while it isn't_____(39), it might help. When Liu, the UCLA sleep researcher and professor of medicine, brought_____(40)sleep-restricted people into the lab for a weekend of sleep during which they logged about 10 hours per night, they showed_____(41)in the ability of insulin(胰岛素)to process blood sugar. That suggests that catchup sleep may undo some but not all of the damage that sleep_____(42)causes, which is encouraging given how many adults don't get the hours they need each night. Still, Liu isn't_____(43)to endorse the habit of sleeping less and making up for it later.
Sleeping pills, while helpful for some, are not_____(44)an effective remedy either. “A sleeping pill will_____(45)one area of the brain, but there's never going to be a perfect sleeping pill, because you couldn't really replicates(复制)the different chemicals moving in and out of different parts of the brain to go through the different stages of sleep," says Dr.Nancy Collop, director of the Emory University Sleep Center.
A.alternatively
B.caters
C.chronically
D.debated
E.deprivation
F.ideal
G.improvements
H.necessarily
I.negotiated
J.pierce
K.presumption
L.ready
M.recommended
N.surpasses
O.target
"It is a matter of urgency to get better analysis and review," said Dr. Simon Mardel, a WHO official who led the two-day meeting that ended on Friday. He said thousands of potential therapies and compounds had been tested so far as researchers try to determine treatments for SARS, or severe acute respiratory syndrome. "We recognize that having no treatment for SARS is hindering our ability to control an epidemic in so many ways." He said.
In the epidemic earlier this year, various treatments, like drugs to fight the virus or strengthen the immune system, as well as traditional Chinese medicine, were delivered under emergency conditions, in widely different settings and countries to patients suffering from varying stages of the illness. Those conditions--generally without standardized measurements or controlled situations-- have made it hard to interpret results.
Standard supportive therapy like nursing, and in severe cases the use of mechanical respirators (呼吸器) to help patients breathe, is the mainstay (主要支持) of SARS care, and helped many patients survive. But doctors still do not know how best to treat SARS patients who have breathing difficulties, Dr. Mardel said. One method is invasive ventilation. A second method involves blowing oxygen into the lungs through a mask. Both carry the risk of transmitting the virus to hospital employees. Without proper analysis, the panel was unable to say definitively which treatment worked best, or which caused the most harm. "There is a lack of shared information," Dr. Mardel said, noting that a lot of data have not been published.
The panel also agreed on guidelines that would allow doctors to conduct quick and safe clinical trials, a process that generally takes years to complete. The World Health organization, a United Nations agency did not release the guidelines. Dr. Mardel said they were flexible because no one knew where, when and in what setting SARS would return. Experts in many countries have already listed the treatments they want to test, and the health agency is leaving these decisions to individual nations.
Guidelines recommended by the scientific panel can be used for______.
A．gathering potentially useful information about various therapies collected
B．conducting clinical studies of SAR8 patients
C．determining treatment for SARS
D．published all the information about SARS
And baby Jessica is just the beginning. Within a decade or two, it may be possible to screen kids almost before pregnancy for an enormous range of attributes, such as how tall they're likely to be, what body type they will have, their hair and eye color, and even, conceivably, their IQ and personality type.
In fact, if gene therapy lives up to its promise, parents may someday be able to go beyond weeding out undesirable traits and start actually inserting the genes they want, perhaps even genes that have been crafted in a lab. Before the new millennium, parents may be going to fertility clinics and picking from a list of options the way car buyers order air conditioning and chrome-alloy wheels. "It's the ultimate shopping experience: designing your baby," says biotechnology critic Jeremy Rifkin, who is appalled by the prospect. "In a society which is using to cosmetic surgery, this is not a big step."
The prospect of designer babies, like many of the ethical problems posed by the genetic revolution, is confronting the world so rapidly that doctors, ethicists, religious leaders and politicians are just starting to grapple (格斗) with the implications, and trying to decide how they feel about it all.
They still have a bit of time. Aside from gender, the only traits that can now be identified at the earliest stages of development are about a dozen of the most serious genetic diseases. Gene therapy in embryos (胚胎) is at least a few years away. And the gene or combination of genes responsible for most of our physical and mental attributes hasn't even been identified yet, making moot (无实际意义的) the idea of engineering genes in or out of a fetus (胎儿).
What is gene therapy supposed to do to live up to its promise？
A．Screen a baby for sex.
B．Remove undesirable attributes.
C．Implant genes.
D．Identify genetic disorder.
【D1】
Obama's Success Isn't All Good News for Black Americans
As Erin White watched the election results head towards victory for Barack Obama, she felt a burden lifting from her shoulders. "In that one second, it was a validation for my whole race," she recalls.
"I've always been an achiever," says White, who is studying for an MBA at Vanderbilt University in Nashville, Tennessee. "But there had always been these things in the back of my mind questioning whether I really can be who I want. It was like a shadow, following me around saying you can only go so far. Now it's like a barrier has been let down. "
White's experience is what many psychologists had expected—that Obama would prove to be a powerful role model for African Americans. Some hoped his rise to prominence would have a big impact on white Americans, too, challenging those who still harbour racist sentiments. "The traits that characterise him are very contradictory to the racial stereotypes that black people are aggressive and uneducated," says Ashby Plant of Florida State University. "He's very intelligent and eloquent."
Sting in the Tail
Ashby Plant is one of a number of psychologists who seized on Obama's candidacy to test hypotheses about the power of role models. Their work is already starting to reveal how the "Obama effect" is changing people's views and behaviour. Perhaps surprisingly, it is not all good news: there is a sting in the tail of the Obama effect.
But first the good news， Barack Obama really is a positive role model for African Americans, and he was making an impact even before he got to the White House. Indeed, the Obama effect can be surprisingly immediate and powerful, as Ray Friedman of Vanderbilt University and his colleagues discovered.
They tested four separate groups at four key stages of Obama's presidential campaign. Each group consisted of around 120 adults of similar age and education, and the test assessed their language skills. At two of these stages, when Obama's success was less than certain, the tests showed a clear difference between the scores of the white and black participants—an average of 12. 1 out of 20, compared to 8.8, for example. When the Obama fever was at its height, however, the black participants performed much better. Those who had watched Obama's acceptance speech as the Democrats' presidential candidate performed just as well, on average, as the white subjects. After his election victory, this was true of all the black participants.
Dramatic Shift
What can explain this dramatic shift？ At the start of the test, the participants had to declare their race and were told their results would be used to assess their strengths and weaknesses. This should have primed the subjects with "stereotype threat"—an anxiety that their results will confirm negative stereotypes, which has been shown to damage the performance of African Americans.
Obama's successes seemed to act as a shield against this. "We suspect they felt inspired and energised by his victory, so the stereotype threat wouldn't prove a distraction," says Friedman.
Lingering Racism
If the Obama effect is positive for African Americans, how is it affecting their white compatriots (同胞 ) ？ Is the experience of having a charismatic (有魅力的 ) black president modifying lingering racist attitudes？ There is no easy way to measure racism directly; instead psychologists assess what is known as "implicit bias", using a computer-based test that measures how quickly people associate positive and negative words—such as "love" or "evil"—with photos of black or white faces. A similar test can also measure how quickly subjects associate stereotypical traits—such as athletic skills or mental ability—with a particular group.
In a study that will appear in the Journal of Experimental Social Psychology, Plant's team tested 229 students during the height of the Obama f
A．Excited.
B．Victorious.
C．Anxious.
D．Relieved.
