The first generation of dot-corns burn...

单项选择题The first generation of dot-corns burned through cash rapidly because they had to spend a lot of money building and running their businesses—marketing and advertising to get the word out, not to mention software, consultants, and programmers to run online systems and" analyze theresults. Thanks to Web 2.0, many of these costs have plummeted. Many of the basics are nowessentially free, which means a business built on the infrastructure laid down by the first two generations of Web companies can gain scale on a shoestring budget, all while giving away its products and services for free. Call it Web 2.5.
The first generation dot-coms spent a huge sum of money

A. marketing and advertising their products.
B. training their employees.
C. hiring consults and programmers.
D. analyzing the data transmitted onto the we

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1.单项选择题With regular exercise, the body builds up its levels of BDNF (brain-derived neurotrophic factor), and the brain’s nerve cells start to branch out, join together and communicate with each other in new ways. This is. the process that underlies learning: every change in the junctions between brain cells signifies a new fact or skill that’s been picked up and stowed away for future use. BDNF makes that process possible. Brains with more of it have a greater capacity for knowledge. On the other hand, says UCLA neuroscientist Fernando Gámez-Pinilla, a brain that’s low on BDNF shuts itself off to new information,
What will happen if a person has a brain that’s low on BDNF

A. He will be able to learn many new skills.
B. He will forget all the information stored in his brain.
C. He will be able to learn things quickly.
D. He will not pick up new information quickly.

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2.单项选择题The people who are to be happy fix their attention on the conveniences of things, the pleasant pans of conversation, the well-prepared dishes, the goodness of the wines, the fine weather. They enjoy all the cheerful things. Those who are to be unhappy think and speak only of the contrary things. Therefore, they are continually discontented. By their remarks, they sour the pleasure of the society, offend many people, and make themselves disagreeable everywhere. If this turn of mind were founded in nature, such unhappy persons would be the more to be pities. The tendency to criticize and be disgusted is perhaps taken up originally by imitation. It grows into a habit, unknown to its possessors. The habit may be strong, but it may be cured when those who have it are convinced of its bad effects on their interests and tastes. I hope this little warning may be of service to them, and help them change this habit.
The phrase" sour the pleasure of society" most probably means

A. having a good taste to the pleasure of society.
B. not being content with the pleasure of society.
C. feeling unhappy with the pleasure of society.
D. enjoying the pleasure of society.

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3.单项选择题After a generation of non-fault divorce in America, law-makers in some states are being asked to make it harder to end a marriage when one spouse does not want to call it off. Proposals in several states to make contested divorces harder to obtain are supported by conservative groups seeking to promote their concept of family values. These proposals would go back, in contested divorces cases, the old requirement that one spouse should show the other was "at-fault", such as being unfaithful, abusive, a drug user or someone who deserts the marriage. That would be a big shift from current divorce laws.
No-fault divorce law has been enacted throughout America since California put the first one on the books in 1970. Under such laws, someone can get a divorce on grounds that the marriage has broken down without having to claim wrongdoing by the other spouse. No-fault divorces can be obtained even if one spouse does not agree to dissolve the marriage.
No-fault divorce law first came into practice in

A. a state in the west.
B. a state in the upper mid-west.
C. a state in the east.
D. a state in the nort

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4.单项选择题Unfortunately, the new swine flu virus can be transmitted between humans. It is not clear yet how easily it is transmitted, nor how it is transmitted. Almost surely it is transmitted by sneezing and coughing, and by skin-to-skin contact with an infected person.
How is the swine flu virus transmitted according to the passage

A. It is very easily transmitted from person to person.
B. It is not quite sure how it is transmitted yet.
C. It is surely transmitted by sneezing or coughing.
D. It is surely transmitted by skin-to-skin contact.

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5.单项选择题Two major findings have emerged from these researches. Firstly, the greater part of the development of observed intelligence occurs in the earliest years of life. It is estimated that 50 percent of measurable intelligence at age 17 is already predictable by the age of four. Secondly, the most important factors in the environment are language and psychological aspects of the parent-child relationship. Much of the difference in measured intelligence between "privileged" and "disadvantaged" children may be due to the latter’s lack of appropriate verbal stimulation and the poverty of their perceptual experiences.
The paragraph mainly talks about

A. observed intelligence occurs in the earliest years of life.
B. the importance of language and psychological aspects of the parent-child relationship.
C. the two major findings from the recent researches on intelligence.
D. lack of appropriate verbal stimulation leads to children’s disadvantage in intelligenc

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6.单项选择题In addition to his theory of color, Newton developed a theory of how light travels. This is known as the corpuscular theory of light, meaning that light travels as a series of tiny bits rather than in continuing waves. Newton sent his writings to the Royal Society where they were given to a committee led by Hooke. Since the corpuscular theory was different from his own theory, Hooke attacked the paper. Soon others started to argue, and Hooke was supported by a scientist from Holland, Chritain Huygens. At one time, Newton was so unhappy with the whole affair that he decided never again to publish any of his work.
The bitter argument continued over the years that followed. At first, Hooke and Huygens received most of the support. Later, after Newton had changed his mind and let his work on gravity be published, he became so famous that things changed. Now people believed Newton could do nothing wrong, and for a hundred years they followed his theory. Then, in the early part of the 19th century, the experiments of a French scientist, Augustin Fresnel, showed that light could be explained best by a wave theory. So the scientists changed sides again, saying that Newton’s ideas had delayed scientific progress for a hundred years.
Newton’s publishing ofhis work on gravity resulted in that

A. Newton became the best known scientist.
B. his corpuscular theory of light was accepted.
C. scientists would believe in Newton only.
D. most people have supposed Newton till now.

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7.单项选择题For years, U. S. automakers have fought tougher regulations by arguing that Americans tend to prefer larger, gas-guzzling SUVs and trucks. That’s not always true: when gas prices were at an all-time high last summer, sales of SUVs were down considerably, while hybrids flew off dealer lots. Since then, prices at the pump have dropped-and so has the appetite for small cars. As long as the price of gas remains volatile(易变的, 动荡不定的), it’s far from certain that Americans will buy the more efficient cars and trucks the new standards will require automakers to produce. In the long run, though, a gas tax that puts a floor on fuel prices may be the only way to break America’s SUV addiction. But Obama has said he’s not interested. "You need a price signal. Regulations alone won’t do it," says Lester Lave, director of the Carnegie Mellon Green Design Initiative.
Americans’ appetite for SUVs dropped when

A. gas prices hit new high last summer.
B. hybrids were out of stock last summer.
C. the government set limits on fuel price last summer.
D. the gas price remained fluctuing last summer.

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8.单项选择题During Mir’s lifetime, Russia spent about US $4.2 billion to build and maintain the station.
The Soviet Union launched Mir, which was designed to last from three to five years, on February 20,1986, and housed 104 astronauts over 12 years and seven months, most of whom were not Russian. In fact, it became the first intemational space station by playing host to 62 people from 11 countries. From 1995 through 1998, seven astronauts from the United States took turns living on Mir for up to six months each. They were among the 37 Americans who visited the station during nine stopovers by space shuffles.
______ Americans ever visited Mir during its lifetime.

A. 62
B. 37
C. 11
D. Seven

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