单选题下面的短文后列出了7个句子,请根据短文的内容对每个句子做出判断:如果该句提的是正确信息,请选择A:如果该句提的是错误信息,请选择B:如果该句的信息文中没有提及,请选择C。
Magaplane (巨型飞机) The
Boeing Corp. and Europe's Airbus consortium (财团) are preparing to offer bigger
airplanes to the world's airlines. Now that talks on a joint project have broken
down, Boeing is pushing a stretched (拓展的) version of 747, and Airbus is
designing an all-new aircraft, known as the A3XX. Seating 550
passengers in the basic model, and 650 in a stretched version, the 1. 2 million
pound A3XX will not only be the largest airplane in the world, but it will also
be one of the most advanceD. The outer wings and the horizontal stabilizer (as
big as a smaller jet's wing) will be made of carbon-fiber composite materials,
and will be the largest? such structures on any aircraft except the B-2 stealth
bomber (隐形轰炸机). Metal skins will be welded (焊接) together with lasers, removing
thousands of fasteners. When a strong wind strikes the A3XX's
260-foot wing, movable control surfaces will prevent it from flexing (扭曲) like a
giant spring. This will make the ride smoother and will save weight by reducing
the load on the wing spars (翼梁). A flexible-skinned flap (副翼) will subtly change
the wing's curvature (曲面) to match the airplane's changing weight as it burns
fuel on each journey. The A3XX will carry up to 1,600 meals,
filling more than 100 food and beverage (饮料) carts. To make more room for
passengers, Airbus plans to put the carts in the lower hold; automatic conveyors
and elevators will deliver them to the two passenger decks. Airlines have asked
Airbus to look at extra features ranging from lower-deck sleeper cabins to a
children's playroom. Airbus expects to offer the A3XX to
airlines in 1998, and deliver the first aircraft in
2003.
单选题{{B}}第三篇{{/B}}
The Greatest Show on Earth
The Olympic Games (奥林匹克运动会) are the greatest festival of sport in the
world. Every four years, a hundred or more countries send their best sportsmen
to compete (竞赛) for the highest honors in sport. As many as 6,000 people take
part in over 20 sports. For the winners, there are gold medals(奖牌) and glory.
But there is honor, too, for all who compete, win or lose. That is in spirit of
the Olympics-to take part is what matters. The Olympic Games
always start in a bright color and action. The teams of all the nations parade
in the opening ceremony(仪式) and march round the track. The custom is for
the Greek team to march in first. For it was in Greece that the Olympics began.
The team of the country where the Games are being held-the host country-marches
in last. The runner with the Olympic torch (火炬) then enters the
stadium(体育场) and lights the flame. A sportsman from the host country takes the
Olympic oath (誓言) on behalf of all the competitors(竞赛者). The judges and
officials also take an oath. After the sportsmen march out of the stadium
the host country puts on a wonderful display. The competitions
begin the next day. There are usually more than twenty sports in the Games. The
rule is that there must be at least fifteen. The main events are in track and
field (田径) , but it is a few days before these sports start. Each day the
competitors take part in a different sport-riding, shooting, swimming, and
cross-country running. Points are gained for each event. Medals are awarded (颁发)
for the individual winners and for national teams. More and
more women are taking part in the games. They first competed in 1900, in tennis
and golf, which are no longer held in the Oiympics. Women's swimming events were
introduced in 1912. But it was not until 1928 that there were any track
and field events for women. Now, they compete in all but half a dozen of the
sports. In horse riding, shooting, and boat racing, they may compete in the same
events as the men.
单选题阅读下面这篇短文,短文后列出了7个句子,请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息,请选择A项;如果该句提供的是错误信息,请选择B项;如果该句的信息文章中没有提及,请选择C项。
{{B}}Magaplane
(巨型飞机){{/B}} The Boeing Corp. and Europe's Airbus consortium (财团)
are preparing to offer bigger airplanes to the world's airlines. Now that talks
on a joint project have broken down, Boeing is pushing a stretched (拓展的) version
of 747, and Airbus is designing an all-new aircraft, known as the
A3XX. Seating 550 passengers in the basic model, and 650 in a
stretched version, the 1.2 million pound A3XX will not only be the largest
airplane in the world, but it will also be one of the most advanced. The outer
wings and the horizontal stabilizer (as big as a smaller jet's wing) will be
made of carbon-fiber composite materials, and will be the largest such
structures on any aircraft except the B-2 stealth bomber (隐形轰炸机). Metal skins
will be welded (焊接) together with lasers, removing thousands of
fasteners. When a strong wind strikes the A3XX's 260-foot wing,
movable control surfaces will prevent it from flexing (扭曲) like a giant spring.
This will make the ride smoother and will save weight by reducing the load on
the wing spars (翼梁). A flexible-skinned flap (副翼) will subtly change the wing's
curvature (曲面) to match the airplane's changing weight as it burns fuel on each
journey. The A3XX will carry up to 1,600 meals, filling more
than 100 food and beverage (饮料) carts. To make more room for passengers, Airbus
plans to put the carts in the lower hold; automatic conveyors and elevators will
deliver them to the two passenger decks. Airlines have asked Airbus to look at
extra features ranging from lower-deck sleeper cabins to a children's
playroom.
单选题Many of Europe"s airports are heavily
congested
.
单选题
下面有3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题,从4个选项中选择1个最佳答案。{{B}}第一篇{{/B}}
{{B}}
Escaping from the
Earth{{/B}} The Earth has a force that pulls things toward
itself. We call this force gravity(地心引力). This is something we live with all the
time, and we take it for granted and hardly ever think about it. But it is a
most important factor in rocket operation and must be overcome if we are to get
anywhere in space, or off the ground at all. Take the throwing
of a hall as an example. The harder the ball is thrown, the faster and higher it
will go. What is the secret? Its speed. If we could throw the ball hard enough
it would go up and up forever and never come down. The speed at which it would
have to be thrown to do this is known as escape speed. Of course, we cannot
throw a ball hard enough because the speed required to escape completely from
the Earth's gravity is seven miles per second, or over twenty-five thousand
miles per hour. Once escape speed has been reached by a
spacecraft(宇宙飞船), no further power is needed. A rocket aimed at the Moon,
for instance, will "coast"(滑行) the rest of the way be cause the Earth's gravity
cannot then pull it back, and there is no air resistance(阻力) in space to slow it
down. This "coasting" is known as "free fall". That does not mean the rocket is
falling down towards the Earth but that it is traveling freely in space without
the aid of power, like a bicycle coasting downhill. Free fall is
an important feature of space travel: it would be impossible to carry enough
fuel to provide powered flight all the time.
单选题"It's been a Uprivilege/U to meet you, sir," the young man said to the artist as he was leaving.
单选题The number of the United States citizens who are {{U}}eligible{{/U}} to vote continues to increase.
单选题The chairman {{U}}proposed{{/U}} that we should stop the meeting.
单选题Against the advice of his accountants, Henry Ford {{U}}regularly{{/U}} reduced the price of his early automobiles.
单选题{{B}}第二篇{{/B}}
{{B}}
Walking Robot Carries a Person{{/B}} The first walking robot
capable of carrying a person unveiled on Friday in Tokyo, Japan. Its creators at
Waseda University in Tokyo and the Japanese robotics company Tmsuk hope their
two-legged creation will one day enable wheel-chair users to climb up and down
the stairs and assist the movement of heavy goods over uneven ground.
The battery-powered robot, code-named WL-16, is essentially an aluminium
chair mounted on two sets of telescopic poles. The poles are bolted to flat
plates which act as feet. WL-16 uses 12 actuators (传动装置) to move forwards,
backwards and sideways while carrying an adult weighing up to 60 kilograms (130
pounds). The robot can adjust its body and walk smoothly even if the person it
is carrying shifts in the chair. At present it can only step up or down a few
millimeters, but the team plans to make it capable of dealing with a normal
flight of stairs. "I believe this bipedal (两足的) robot, which I
prefer to call a two-legged walking chair rather than a wheel-chair, will
eventually enable people to go up and down the stairs," said Atsuo Takanishi,
from Waseda University. "We have had strong robots for some time
but usually they have been manipulators, they have not been geared to carrying
people around," says Ron Arkin, at the Georgia Institute of Technology and
robotics consultant for Sony. "But I don't know how safe and how user-friendly
WL-16 is." Tmsuk chief executive Yoichi Takamoto argues that
bipedal or multi-legged robots will be more useful than so-called "caterpillar
(毛毛虫) models" for moving over uneven ground. WL-16's normal
walking step measures 30 centimetres, but it can stretch its legs to 136 cm
apart. The prototype (原型) is currently radio-controlled, but the research team
plans to equip it with a stick-like controller for the user in future. Takanishi
said it will take "at least two years" to develop the WL-16 prototype into a
working model. Smaller, ground-hugging (紧贴地面行走的) robots have
been developed to pass across tricky ground. One maggot-like (像蛆一样的) device uses
a magnetic fluid to pulse its way along, while another snake-like robot uses
smart software to devise new movement strategies if the landscape affects any
one part. One ball-shaped robot even uses a leap-and-bounce approach to travel
over rough territory. But none of these are big or strong enough to carry a
person too.
单选题The dog saw his Ureflection/U in the pool of water.
单选题阅读下面这篇短文,短文后列出7个句子,请根据短文的内容对每个句子做出判断。如果该句提供的是正确信息,请选择A;如果该句提供的是错误信息,请选择B;如果该句的信息文章中没有提及,请选择C。
In 1993, New York State ordered stores
to charge a deposit on beverage(饮料) containers. Within a year, consumers
had returned millions of aluminum cans and glass and plastic bottles. Plenty of
companies were eager to accept the aluminum and glass as raw materials for new
products, but because few could figure out what to do with the plastic, much of
it wound up buried in landfills(垃圾填埋场). The problem was not limited to New York.
Unfortunately, there were too few uses for second-hand plastic.
Today, one out of five plastic soda bottles is recycled(回收利用) in the
United States. The reason for the change is that now there are dozens of
companies across the country buying discarded plastic soda bottles and turning
them into fence posts, paint brushes, etc. As the New York
experience shows, recycling involves more than simply separating valuable
materials from the rest of the rubbish. A discard remains a discard until
somebody figures out how to give it a second fife—and until economic
arrangements exist to give that second life value. Without adequate markets to
absorb materials collected for recycling, throwaways actually depress prices for
used materials. Shrinking landfill space, and rising costs for
burying and burning rubbish are forcing local governments to look more closely
at recycling. In many areas, the East Coast especially, recycling is already the
least expensive waste-man-agement option. For every ton of waste recycled, a
city avoids paying for its disposal, which, in parts of New York, amounts to
savings of more than $100 per ton. Recycling also stimulates the local economy
by creating jobs and trims the pollution control and energy costs of industries
that make recycled products by giving them a more refined raw
material.
单选题
Symbolic Process The process
by means of which human beings arbitrarily make certain things stand for other
things many be called the symbolic process. Everywhere we turn,
we see the symbolic process at work. There are {{U}} {{U}} 1
{{/U}} {{/U}}things men do or want to do, possess or want to possess, that
have not a symbolic value. Almost all fashionable clothes are
{{U}} {{U}} 2 {{/U}} {{/U}}symbolic, so is food. We {{U}}
{{U}} 3 {{/U}} {{/U}}our furniture to serve {{U}} {{U}}
4 {{/U}} {{/U}}visible symbols of our taste, wealth, and social
position. We often choose our houses {{U}} {{U}}
5 {{/U}} {{/U}}the basis of a feeling that it "looks well" to have a
"good address." We trade perfectly good cars in for {{U}} {{U}} 6
{{/U}} {{/U}}models not always to get better transportation, but to give
{{U}} {{U}} 7 {{/U}} {{/U}}to the community that we can
{{U}} {{U}} 8 {{/U}} {{/U}}it. Such complicated
and apparently {{U}} {{U}} 9 {{/U}} {{/U}}behavior leads
philosophers to ask over and over again, "why can't human beings {{U}}
{{U}} 10 {{/U}} {{/U}}simply and naturally." Often the complexity of
human life makes us look enviously at the relative {{U}} {{U}} 11
{{/U}} {{/U}}of such live as dogs and cats. Simply, the fact that symbolic
process makes complexity possible is no {{U}} {{U}} 12 {{/U}}
{{/U}}for wanting to {{U}} {{U}} 13 {{/U}} {{/U}}to a cat and to a
cat-and-dog existence. A better solution is to understand the symbolic process
{{U}} {{U}} 14 {{/U}} {{/U}}instead of being its slaves we
become, to some degree at least, its {{U}} {{U}} 15 {{/U}}
{{/U}}
单选题{{B}}第二篇{{/B}}
{{B}}
Superconducting Ceramic (陶瓷){{/B}} An underground
revolution begins this winter. With the flip (轻击) of a switch, 30,000 homes in
one part of Detroit will soon become the first in the country to receive
electricity transmitted by ice-cold high-performance cables. Other American
cities are expected to follow Detroit's example in the years ahead, which could
conserve enormous amounts of power. The new electrical cables at
the Frisbie power station in Detroit are revolutionary because they are made of
superconductors. A superconductor is a material that transmits electricity with
little or no resistance. Resistance is the degree to which a substance resists
electric current. All common electrical conductors have a certain amount of
electrical resistance. They convert at least some of the electrical energy
passing through them into waste heat. Superconductors don't. No one
understands how superconductivity works. It just does. Making
superconductors isn't easy. A superconducting material has to be cooled to an
extremely low temperature to lose its resistance. The first superconductors,
made more than 50 years ago, had to be cooled to -263 degrees Celsius before
they lost their resistance. Newer superconducting materials lose their
resistance at -143 degrees Celsius. The superconductors cable
installed at the Frisbie station is made of a ceramic material that contains
copper, oxygen, bismuth (铋), strontium (锶), and calcium (钙). A ceramic is a
hard, strong compound made from clay or minerals. The superconducting ceramic
has been fashioned into a tape that is wrapped lengthwise around a long tube
filled with liquid nitrogen. Liquid nitrogen is supercold and lowers the
temperature of the ceramic tape to the point where it conveys electricity with
zero resistance. The United States loses an enormous amount of
electricity each year to resistance. Because cooled superconductors have no
resistance, they waste much less power. Other cities are watching the Frisbie
experiment in the hope that they might switch to superconducting cable and
conserve power, too.
单选题I can't {{U}}put up with{{/U}} my neighbor's noise any longer, it's driving
me mad.
A. tolerate
B. generate
C. reduce
D. measure
单选题The attack on Fort Sumter near Charleston provoked a sharp response froze the North, which led to the American Civil War.A. demandedB. elicitedC. extractedD. defied
单选题 阅读下面的短文,文中有15处空白,每处空白给出了4个选项,请根据短文的内容从4个选项中选择1个最佳答案。
{{B}}
Transportation use a to Be
Much
Slower than It Is Now{{/B}} For many years in tile desert,
camels used to be the only form of transportation. Before the {{U}}(51)
{{/U}}of modern trains, camel trains used to carry al! the goods for trading
between Central Africa and Europe. Traders sometimes{{U}} (52) {{/U}}to
put together camel trains with 10,000 to 15,000 animals. Each animal often
carried{{U}} (53) {{/U}}400 pounds and it could travel twenty miles a
day. This form of transportation was so important{{U}} (54) {{/U}}camels
were called the "ship of the desert". Now modern trains travel
across the desert in a very{{U}} (55) {{/U}}time. One engine can pull as
much weight as 135,000{{U}} (56) {{/U}},in addition, trains use special
cars for their load. Refrigerator cars carry food; boxcars carry heavy goods;
stock cars carry animals; and tank cars carry oil. {{U}}
(57) {{/U}}travel has changed, too. The earliest planes were biplanes,
with two sets of wings. The top speed of this plane was 60 miles per hour. The
pilots used to sit or lie on the wings in the open air. The plane{{U}} (58)
{{/U}}sometimes stopped in the middle of a trip. It used to be{{U}} (59)
{{/U}} to fly in bad weather. In snow or in rain, the wings frequently
became icy.{{U}} (60) {{/U}}the plane might go down.
Mechanical improvements during the First World War changed airplanes.
Monoplanes took the place of biplanes. Pilots flew inside of covered cabins.
Still, even these planes were small and expensive. Only{{U}} (61)
{{/U}}people were able to travel in airplanes. Now modern
jets make air travel possible for all people.{{U}} (62) {{/U}}place in
the world is more than 1 hours away by jet. Further improvements have{{U}}
(63) {{/U}}the cost of flying, and they have made air travel much
safer than it used to be. A modern 707 can carry 170 people and can fly at 600
miles per hour. People{{U}} (64) {{/U}}used to eat, sleep, or watch
movies on airplanes.{{U}} (65) {{/U}} these things are a normal part of
air travel!
单选题The little boy employed an unexpected method to gel the result.A. adaptedB. adoptedC. assignedD. appointed
单选题Technology Transfer in Germany When it comes to translating basic research into industrial success, few nations can match Germany. Since the 1940s, the nation's vast industrial base has been fed with a constant stream of new ideas and expertise from science. And though German prosperity (繁荣) has faltered (衰退) over the past decade because of the huge cost of unifying east and west as well as the global economic decline, it still has an enviable record for turning ideas into profit. Much of the reason for that success is the Fraunhofer Society, a network of research institutes that exists solely to solve industrial problems and create sought-after technologies. But today the Fraunhofer institutes have competition. Universities are taking an ever larger role in technology transfer, and technology parks are springing up all over. These efforts are being complemented by the federal programmes for pumping money into start-up companies. Such a strategy may sound like a recipe for economic success, but it is not without its critics. These people worry that favouring applied research will mean neglecting basic science, eventually starving industry of fresh ideas. If every scientist starts thinking like an entrepreneur (企业家), the argument goes, then the traditional principles of university research being curiosity-driven, free and widely available will suffer. Others claim that many of the programmes to promote technology transfer are a waste of money because half the small businesses that are promoted are bound to go bankrupt within a few years. While this debate continues, new ideas flow at a steady rate from Germany's research networks, which bear famous names such as Helmholtz, Max Planck and Leibniz. Yet it is the fourth network, the Fraunhofer Society, that plays the greatest role in technology transfer. Founded in 1949, the Fraunhofer Society is now Europe's largest organisation for applied technology, and has 59 institutes employing 12,000 people. It continues to grow. Last year, it swallowed up the Heindch Hertz Institute for Communication Technology in Berlin. Today, there are even Fraunhofers in the US and Asia.
单选题Cement was seldom used in buildings of the Middle Ages. A. slightly B. rarely C. originally D. occasionally