Today more and more people go to
websites when looking for information. Although most readers go to websites for
news and e-mail, a form of person-to-person news, or in the form of chatting,
they also read books on the web. It’s called electronic book (e-book).
Electronic books could revolutionize reading, but people ought to consider
their far-reaching impacts as well. "The e-book promises to cause a slow tragedy
on life as we know it," Jason Ohler, professor of technology assessment,
university of Alaska Southeast In Juneau, warned the World Future Society,
Bethesda, Md. His assessment weighed the pros and cons (赞成和反对的理由) of e-book
technology’s impact on social relationships, the environment, the economy, etc.
Before you curl up (蜷曲) with an e-book, consider the disadvantages.
They increase eyestrain due to poor screen r
A. They create new jobs only for writers.
B. Fewer and fewer people have access to new technology.
C. They may threaten some traditional trades.
D. They isolate people from one another.
更多"Passage Three
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[单项选择] Passage Three
Today more and more people go to
websites when looking for information. Although most readers go to websites for
news and e-mail, a form of person-to-person news, or in the form of chatting,
they also read books on the web. It’s called electronic book (e-book).
Electronic books could revolutionize reading, but people ought to consider
their far-reaching impacts as well. "The e-book promises to cause a slow tragedy
on life as we know it," Jason Ohler, professor of technology assessment,
university of Alaska Southeast In Juneau, warned the World Future Society,
Bethesda, Md. His assessment weighed the pros and cons (赞成和反对的理由) of e-book
technology’s impact on social relationships, the environment, the economy, etc.
Before you curl up (蜷曲) with an e-book, consider the disadvantages.
They increase eyestrain due to poor screen r
A. They are unable to be broken down into harmless products.
B. They consume a lot of natural resources.
C. They produce harmful gases.
D. They are capable of being reused.
[单项选择]Passage Three
Today, more and more people are using credit cards instead of money to buy the things they need. Almost anyone who has a steady income and a continuous work record can apply for a credit card.
If you have a credit card, you can buy a car, eat a dinner, take a trip, and even get a haircut by charging the cost to your account. In this way you can pay for purchases a month or two later, without any extra charge. Or you may choose to spread out your payments over several months and pay only part of the total amount each month. If you do this, the credit card company or the bank who sponsors the credit card will add a small service charge to your total bill. This is very convenient for the customer. With the credit card in your wallet or purse, you don’t have to carry much cash. This saves your trips to the bank to cash checks or withdraw cash. Also if you carry credit cards instead of a lot of cash, you don’t have to be concerned about losing yo
A. With a credit card you can pay for purchases two months later.
B. With a credit card you can charge the cost to your account.
C. With a credit card you don’t have to be worded about a thief.
D. With the credit card you don’t have to worry about your final bill.
[单项选择] Passage Three
For more than six million American
children, coming home after school means coming home to an empty house. They
spend part of each day alone. They are called "latchkey children".
They’re children who look after themselves while their parents work. And
their bad conditions have become a social problem.
Lyne Brown
was once the headmaster of an elementary school. She said, "A lot of kids
had chains around their necks with keys attached.! was constantly telling them
to put them inside shirts. There were so many keys, it never came to my
mind what they meant. ",slowly, she learned they were house keys.
Lyne learned of the impact working couples and single parents were having
on their children. She found that Fear is the biggest problem faced by
children at home alone. Many had nightmares and were worried about their own
safe
A. are growing in numbers
B. are also found in middle-class neighborhoods
C. watch too much television during the day
D. suffer problems from being left alone
[单项选择]
Passage Three
Most Americans today have some insurance against long-term illness or injury, or the death of the family wage-earner. Nearly all who work, including the self-employed, are covered by retirement programs. Four out of five employees now have access to unemployment benefits.
The Social Security law, which covers more than 90 percent of the work force, provides a national system of payments in old age and disability benefits. Over the years the law has been broadened’ to give greater protection in all categories.
The Social Security system is financed through a tax paid by workers and their employers during the years of employment. Self-employed persons, who also pay into the system, are covered as well. When workers retire at age 65, they receive monthly payments on a scale to their previous earnings; reduced benefits am paid to those retiring at ages 62 through 64. Benefits are also paid to nonworking widows and widowers, to childr
A. the Social Security law
B. the social security and insurance system
C. unemployment insurance
D. retirement benefits
[单项选择] Passage Three
Three years ago, researchers announced the discovery
of human genes that were capable of turning ordinary cells into malignant ones.
The news met with some skepticism. Experts asked how a single gene could cause
such a dramatic change. Why does cancer take years or even decades to develop if
it is caused by such a simple and direct process In last week’s issue of the,
three research teams answered those questions by setting forth a new model for
understanding the role of oncogenes in cancer.
Each group found
that it does in fact take more than a single gene to produce cancer in normal
cells. Teams at M. I. T and Cold Spring Harbor Laboratory on Long Island, N. Y.
, reported that they could induce cancer in normal rat cells only by inserting
at least two types of oncogene into the cells. "A single oncogene produced some
changes,
A. single cancer genes are harmless
B. the development of cancer is a complex process
C. a carcinogenic chemical is required for cancer to develop
D. cancer genes can cause cancer only in conjunction with a carcinogen
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