| 1 |
Recent advances in science and technology have made it
possible for geneticists to find out abnormalities in the unborn foetus and
take remedial action to rectify some defects which would otherwise prove to be
fatal to the child. Though genetic engineering is still at its infancy,
scientists can now predict with greater accuracy a genetic disorder. It is not
yet an exact science since they are not in a position to predict when exactly a
genetic disorder will set in. While they have not yet been able to change the
genetic order of the gene in germs, they are optimistic and are holding out
that in the near future they might be successful in achieving this feat. They
have, however, acquired the ability in manipulating tissue cells. However,
genetic mis-information can sometimes be damaging for it may adversely affect
people psychologically. Genetic information may lead to a tendency to brand
some people as inferiors. Genetic information can therefore be abused and its
application in deciding the sex of the foetus and its subsequent abortion is
now hotly debated on ethical lines. But on this issue geneticists cannot be
squarely blamed though this charge has often been leveled at them. It is mainly
a societal problem. At present genetic engineering is a costly process of
detecting disorders but scientists hope to reduce the costs when technology
becomes more advanced. This is why much progress in this area has been possible
in scientifically advanced and rich countries like the U.S.A., U.K. and Japan.
It remains to be seen if in the future this science will lead to the
development of a race of supermen or will be able to obliterate disease from
this world.
What is the tone of the
author in the last sentence of the passage?
|
A. Resignation
B. Cautious
C. Relief
D. Concert
|
| 2 |
In the early 1920's,
settlers came to Alaska looking for gold. They traveled by boat to the coastal
towns of Seward and Knik, and from there by land into the gold fields. The
trail they used to travel inland is known today as the lditarod Trail, one of the
National Historic Trails designated by the congress of the United States. The
Iditarod Trail quickly became a major thoroughfare in Alaska, as the mail and
supplies were carried across this trail. People also used it to get from place
to place, including the priests, ministers, and judges who had to travel
between villages down this trail was via god sled. Once the gold rush ended,
many gold-seekers went back to where they had come from, and suddenly there was
much less travel on the lditarod Trail. The introduction of the airplane in the
late 1920's meant dog teams were mode of transportation, of course airplane
carrying the mail and supplies, there was less need for land travel in general.
The final blow to the use of the dog teams was the appearance of snowmoniles.
By the mid 1960's most Alasknas didn't even know the lditarod Trail existed, or
that dos teens had played a crucial role in Alaska's early settlements. Dorothy
G.Page, a self-made historian, recognized how few people knew about the former
use of sled dogs as working animals and about the Iditarod Trail's role in
Alaska's colorful history. To she came up with the idea to have a god sled race
over the Iditarod Trail. She presented her idea to an enthusiastic musher, as
dog sled drivers are known, named Joe Redington, Sr. Soon the pages and the
Redintons were working together to promote the idea of the Iditarod race. Many
people worked to make the first Iditarod Trail Sled Dog Race a reality in 1967.
The Aurora Dog Mushers Club, along with men from the Adult Camp in Sutton,
helped clear years of overgrowth from the first nine miles of the Iditarod
Trail. To raise interest in the race, a $25,000 purse was offered, with Joe
Redington donating one acre of his land to help raise the funds. The short race,
approximately 27 miles long, was put on a second time in 1969. After these
first two successful races, the goal was to lengthen the race a little further
to the ghost town of Iditarod by 1973. However in 1972, the U.S. Army reopened
the trail as a winter exercise, and so in 1973, the decision was made to take
the race all the way to the city of Nome-over 1,000 miles. There were who
believed it could bot be done and that it wad crazy to send a bunch out into
vast, uninhabited Alaskan wilderness. But the race went! 22 mushers finished
that year, and to date over 400 people have completed it.
The primary purpose of
this passage is to
|
A. Recount the history of the Iditarod trail and the race that memorialized it
B. Described the obstacles involved in founding the Iditarod race
C. Outline the circumstances that led to the establishment of the Iditarod Trail
D. Re-establish the important place of the Iditarod Trail in Alaska's history
|
| 3 |
Choose correct word or phrase that is most opposite of the word given.
Credulous
|
A. Gullible
B. Skeptical
C. Unrewarded
D. Humorous
|
| 4 |
In the early 1920's,
settlers came to Alaska looking for gold. They traveled by boat to the coastal
towns of Seward and Knik, and from there by land into the gold fields. The
trail they used to travel inland is known today as the lditarod Trail, one of the
National Historic Trails designated by the congress of the United States. The
Iditarod Trail quickly became a major thoroughfare in Alaska, as the mail and
supplies were carried across this trail. People also used it to get from place
to place, including the priests, ministers, and judges who had to travel
between villages down this trail was via god sled. Once the gold rush ended,
many gold-seekers went back to where they had come from, and suddenly there was
much less travel on the lditarod Trail. The introduction of the airplane in the
late 1920's meant dog teams were mode of transportation, of course airplane
carrying the mail and supplies, there was less need for land travel in general.
The final blow to the use of the dog teams was the appearance of snowmoniles.
By the mid 1960's most Alasknas didn't even know the lditarod Trail existed, or
that dos teens had played a crucial role in Alaska's early settlements. Dorothy
G.Page, a self-made historian, recognized how few people knew about the former
use of sled dogs as working animals and about the Iditarod Trail's role in
Alaska's colorful history. To she came up with the idea to have a god sled race
over the Iditarod Trail. She presented her idea to an enthusiastic musher, as
dog sled drivers are known, named Joe Redington, Sr. Soon the pages and the
Redintons were working together to promote the idea of the Iditarod race. Many
people worked to make the first Iditarod Trail Sled Dog Race a reality in 1967.
The Aurora Dog Mushers Club, along with men from the Adult Camp in Sutton,
helped clear years of overgrowth from the first nine miles of the Iditarod
Trail. To raise interest in the race, a $25,000 purse was offered, with Joe
Redington donating one acre of his land to help raise the funds. The short race,
approximately 27 miles long, was put on a second time in 1969. After these
first two successful races, the goal was to lengthen the race a little further
to the ghost town of Iditarod by 1973. However in 1972, the U.S. Army reopened
the trail as a winter exercise, and so in 1973, the decision was made to take
the race all the way to the city of Nome-over 1,000 miles. There were who
believed it could bot be done and that it wad crazy to send a bunch out into
vast, uninhabited Alaskan wilderness. But the race went! 22 mushers finished
that year, and to date over 400 people have completed it.
Based on information in
the passage, it can be inferred that all of the following contributed to the
disuse of the Iditarod Trail except
|
A. More modern forms of transportation
B. Depleted gold mines
C. Highway routes to ghost towns
D. Reduced demand for land travel
|
| 5 |
Loutish
|
A. Dejected
B. Vast
C. Urbane
D. Pitiful
|
| 6 |
(Complete the sentence with suitable words)
Where can one find the leather shop ______ sells school bags at lower price
|
A. Which
B. That
C. Who
D. Whom
|
| 7 |
On January 3, 1961, nine days after
Christmas, Richard Legg, John Byrnes, and Richard McKinley were killed in a
remote desert in eastern Idaho. Their deaths occurred when a nuclear reactor
exploded at a top-secret base in the National Reactor Testing Station (NRTS).
Official reports state that the explosion and subsequent reactor meltdown
resulted from the improper retraction of the control rod. When questioned about
the events that occurred there, officials were very reticent. The whole affair,
in fact, was discussed much, and seemed to disappear with time.
In order to grasp the mysterious
nature of the NRTS catastrophe, it help to know a bit about how nuclear
reactors work. After all, the generation of nuclear energy may strike many as
an esoteric process. However, given its relative simplicity, the way in which
the NRTS reactor functions is widely comprehensible. In this particular kind of
reactor, a cluster of nine-ton uranium fuel rods are positioned lengthwise
around a central control rod. The reaction begins with the slow removal of the
control ro, which starts a controlled nuclear reaction and begins to heat the
water in the reactor. This heat generates steam, which builds pressure inside
the tank. As pressure builds, the steam looks for a place to escape. The only
place this steam is able to escape is through the turbine. As it passes through
the turbine on its way out of the tank, it turns the giant fan blades and
produces energy.
On the morning of January 3, after
the machine had been shut down for the holidays, the three men arrived at the
station to restart the reactor. The control rod needed to be pulled out only
four inches to be reconnected to the automated driver. However, records
indicate that Byrnes yanked it out 23 inches, over five times the distance
necessary. In milliseconds the reactor exploded. Legg was impaled on the
ceiling; he would be discovered last. It took one week and a lead-shielded
crane to remove his body. Even in full protective gear, workers were only able
to work a minute at a time. The three men are buried in lead-lined coffins
under concrete in New York, Michigan, and Arlington Cemetery, Virginia.
The investigation took nearly two
years to complete. Did Byrnes have a dark motive? Or was it simply an accident?
Did he know how precarious the procedure was? Other operators were questioned
as to whether they knew the consequences of pulling the control rod out so far.
They responded “Of course! We often talked about what we would do if we were at
a radar station and the Russians came.
“We’d yank it out.”
Official reports are oddly
ambiguous, but what they do not explain, gossip does. Rumors had it that there
was tension between the men because Byrnes suspected the other two of being
involved with his young wife. There is little doubt than he, like the other
operators, knew exactly what would happen when he yanked the control rod.
The tone of the author can best be
described as
|
A. Neutral
B. Dejected
C. Sarcastic
D. Ominous
|
| 8 |
Fleas are perfectly designed by
nature to feast on anything containing blood. Like a shark in the water or a
wolf in the woods, fleas are ideally equipped to do what they do, making them
very difficult to defeat. The bodies of these tiny parasites are extremely
hardy and well-suited for their job.
A flea has a very hard exoskeleton,
which means the body is covered by a tough, tile-like plate called a sclerite.
Because of these plates, fleas are almost impossible to squish. The
exoskeletons of fleas are also waterproof of fleas are also waterproof and shock
resistant, and therefore fleas are highly resistant to the sprays and chemicals
used to kill them.
Little spines are attached to his
plate. The spine the flea scurries through an animal’s fur in – search of
grooming pet tries to pull a flea off through the hair coat, these spines will
extend and stick to the fur like Velcro.
Fleas are some of the best jumpers
in the natural world. A flea can jump seven inches, or 150 times its own
length, either vertically or horizontally. An equivalent jump for a person
would be 555 feet, the height of the Washington Monument. Fleas can jump 30,000
times in a row without stopping, and they are able to accelerate through the
air at an incredibly high rate – a rate which is over ten times what humans can
withstand in an airplane.
Fleas have very long rear legs with
huge thigh muscles and multiple joints. When they get ready to jump. They fold their
long legs up and crouch like a runner on a staring block. Several of their
joints contain a protein called resilin, which helps catapult fleas into the
air as they jump, similar to the way a rubber band provides momentum to a
slingshot. Outward facing claws on the bottom of their legs grip anything they
touch when they land.
The adult female flea mates after
her first blood meal and begins producing eggs in just 1 to 2 days. One flea
can lay up to 50 eggs in one day and over 2,000 in her lifetime. Flea eggs can
be seen with the naked eye, but they are about the size of a grain of salt. Shortly
after being laid, the eggs begin to transform into cocoons. In the cocoon
state, fleas are fully developed adults, and will hatch immediately if
conditions are favorable. Fleas can detect warmth, movement, and carbon dioxide
in exhaled breath, and these three factors stimulate them to emerge as new
adults. If the flea does not detect appropriate conditions, it can remain
dormant in the cocoon state for extended periods. Under ideal conditions, the
entire life cycle may only take 3 weeks, so in no time at all, pets and homes
can become infested.
Because of these characteristics,
fleas are intimidating opponents. The best way to control fleas, therefore, is
to take steps to prevent an infestation from ever occurring.
Fleas are difficult to squish
because they have
I Sclerites
II Tough spines
III Resilin in their joints
|
A. I only
B. I and II only
C. II and III only
D. I, II and III
|
| 9 |
Jaundiced
|
A. Unprejudiced
B. Servile
C. Remitted
D. Discounted
|
| 10 |
ENERVATE : STRENGTH
|
A. encourage : motivation
B. conserve : excitement
C. persecute : indulgence
D. incarcerate : freedom
|
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