Nanotechnology, according to its fans,
will jump-start a new industrial revolution with molecular-sized structures as
complex as the human cell and 100 times stronger than steel. The new technology
transforms everyday products and the way they are made by manipulating atoms so
that materials can be shrunk, strengthened and lightened all at once. To date
only modest nanotech-based products—such as stain-resistant fabrics and fresh
food packaging—have entered the market, but some scientists predict
nanotechnology will eventually be the only game in town. "It will be a
ubiquitous technology," said George Stephanopoulos, professor of chemical
engineering at the Massachusetts Institute of Technology. He echoes other
nanotech supporters who say industrial countries are already sliding toward its
use in every aspect of manufacturing.
A. How to prolong the 10 to 20 years’ time.
B. How to eliminate the public’s prejudice.
C. How to solve the problem of big and small.
D. How to get enough manpower and money.
更多"Passage Five
Nanotechnolo"的相关试题:
[单项选择] Passage Five
Nanotechnology, according to its fans,
will jump-start a new industrial revolution with molecular-sized structures as
complex as the human cell and 100 times stronger than steel. The new technology
transforms everyday products and the way they are made by manipulating atoms so
that materials can be shrunk, strengthened and lightened all at once. To date
only modest nanotech-based products—such as stain-resistant fabrics and fresh
food packaging—have entered the market, but some scientists predict
nanotechnology will eventually be the only game in town. "It will be a
ubiquitous technology," said George Stephanopoulos, professor of chemical
engineering at the Massachusetts Institute of Technology. He echoes other
nanotech supporters who say industrial countries are already sliding toward its
use in every aspect of manufacturing.
A. help readers have a better understanding of nanotech
B. show that industries are all set for the nanotech age
C. tell readers the hurdles ahead the research of nanotech
D. reveal the potential benefits and big business of nanotech
[单项选择] Passage Five
Nanotechnology, according to its fans, will
jump-start a new industrial revolution with molecular-sized structures as
complex as the human cell and 100 times stronger than steel. The new technology
transforms everyday products and the way they are made by manipulating atoms so
that materials can be shrunk, strengthened and lightened all at once. To date
only modest nanotech-based products--such as stain-resistant fabrics and fresh
food packaging--have entered the market, but some scientists predict
nanotechnology will eventually be the only game in town. "It will be a
ubiquitous technology," said George Stephanopoulos, professor of chemical
engineering at the Massachusetts Institute of Technology. He echoes other
nanotech supporters who say industrial countries are already sliding toward its
use in every aspect of manufacturing.
A. nanotechnology can not continue in existence for a long time
B. nanotechnology will be the only activity that provides entertainment
C. nanotechnology will become the most influential in the future
D. nanotechnology will become the most beneficial thing someday
[单项选择] Passage Five
According to sociologists, there are
several different ways in which a person may become recognized as the leader of
a social group in the United States. In the family, traditional cultural
patterns confer leadership on one or both of the parents. In other cases, in
such friendship groups, one or more persons may gradually emerge as leaders,
although there is no formal process of selection. In larger groups, leaders are
usually chosen formally through election or recruitment.
Although leaders are often thought to be people with unusual personal
ability, decades of research have failed to produce consistent evidence that
there is any category of "natural leaders". It seems that there is no set of
personal qualities that all leaders have in common; rather, virtually any person
may be recognized as a leader if the person has quali
A. recruitment
B. formal election process
C. specific leadership training
D. traditional cultural patterns
[单项选择] Passage Five
There is no question that the old style
of air pollution could kill people. In one week following the infamous
"peasouper" fog in December 1952,4,700 people died in London. Most of these
people were elderly and already had heart or lung diseases. A series of these
killer fogs eventually led to the British Parliament passing the Clean Air Act
which restricted the burning of coal.
Fortunately the effect of
smog on the lungs is not so dramatic. Scientists have now conducted a number of
laboratory experiments in which volunteers are exposed to ozone inside a steel
chamber for a few hours. Even at quite low concentrations there is a reversible
fall in lung function, an increase in the irritability of the lungs and evidence
of airway inflammation. Although irritable and inflamed lungs are particularly
seen in people with asthma (哮喘)
A. The burning of coal
B. Long-term exposure to smog
C. Exposure to nitrogen dioxide
D. Attending school camps
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