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Q2:
A
certain roller coaster has 3 cars, and a passenger is equally likely to ride in
any 1 of the 3 cars each time that passenger rides the roller coaster. If a certain passenger is to ride the roller
coaster 3 times, what is the probability that the passenger will ride in each
of the 3 cars?
A.
0
B.
1/9
C.
2/9
D.
1/3
E.
1
Answer: C 3*2/3*3*3
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GWD1-Q13:
In the United
States, of the people who moved from one state to another
when they retired, the percentage who retired to Florida has decreased by three percentage
points over the past ten years. Since
many local businesses in Florida
cater to retirees, this decline is likely to have a noticeably negative
economic effect on these businesses.
Which of the following, if true, most
seriously weakens the argument?
A.
Florida attracts
more people who move from one state to another when they retire than does any
other state.
B.
The number of people who move out of Florida to accept
employment in other states has increased over the past ten years.
C.
There are far more local businesses in Florida that cater to
tourists than there are local businesses that cater to retirees.
D.
The total number of people who retired and
moved to another state for their retirement has increased significantly over
the past ten years.
E.
The number of people who left Florida when they
retired to live in another state was greater last year than it was ten years
ago.
percentage decreased-->many businesses cater to
retirees-->negative effect on these businesses.
hidden assumption:percentage decreased = the number
decreased.
weaken:the number=total * percentage,[ total increased,
percentage decreased-> the number not decreased]
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GWD1-Q14:
That the application of new technology
can increase the productivity of existing coal mines is demonstrated by the
case of Tribnia’s coal industry. Coal output per miner in
Tribnia is double what it was five years ago, even though no new mines have opened.
Which of the following can be properly
concluded from the statement about coal output per miner in the passage?
A.
If the number of miners working in Tribnian coal
mines has remained constant in the past five years, Tribnia’s total coal production has
doubled in that period of time.
B.
Any individual Tribnian coal mine that
achieved an increase in overall
output in the past five years has also experienced an increase in output per miner.
C.
If any new coal mines had opened in Tribnia in the past
five years, then the increase in output per miner would have been even greater than it actually
was.可能不变，也没说new technology
D.
If any individual Tribnian coal mine has not
increased its output per
miner in the past five years, then that mine’s overall output has declined or remained
constant.
E.
In Tribnia the cost of producing a given quantity of coal
has declined over the past five years.
------------------------------------------------------------------------------------------------------------ GWD1-Q17:
The spacing of the four holes on a fragment of a bone flute
excavated at a Neanderthal campsite is just what is required to play the third through sixth
notes of the diatonic scale—the seven-note musical scale used in much of
Western music since the Renaissance.
Musicologists therefore hypothesize that the diatonic musical scale was
developed and used thousands of years before it was adopted by Western musicians.
Which of the following, if true, most
strongly supports the hypothesis?
A.
Bone flutes were probably the only musical
instrument made by Neanderthals.
B.
No musical instrument that is known to have
used a diatomic scale is of an earlier date than the flute found at the
Neanderthal campsite.
C.
The flute was made from a cave-bear bone and
the campsite at which the flute fragment was excavated was in a cave that also
contained skeletal remains of cave bears.
D.
Flutes are the simplest wind instrument that
can be constructed to allow playing a diatonic scale.
E.
The cave-bear leg bone used to make the
Neanderthal flute would have been long enough to make a flute capable of
playing a complete diatonic scale.
GWD1-Q33:
A company
plans to develop a prototype weeding machine that uses cutting blades with
optical sensors and microprocessors that distinguish weeds from crop plants by
differences in shade of color. The
inventor of the machine claims that it will reduce labor costs by virtually
eliminating the need for manual weeding.
Which of
the following is a consideration in favor of 支持the company’s implementing its plan to develop the
prototype?
A. There is a considerable degree of variation in shade of color between
weeds of different species.
B. The shade of color of some plants tends to change appreciably over the
course of their growing season.
C. When crops are weeded manually, overall size and leaf shape are taken
into account in distinguishing crop plants from weeds.
D. Selection and genetic manipulation allow plants of virtually any species
to be economically bred to have a distinctive shade of color without altering
their other characteristics.
E. Farm laborers who are responsible for the manual weeding of crops carry
out other agricultural duties at times in the growing season when extensive
weeding is not necessary.
(D)
GWD1-Q39:
Which of the following most logically
completes the passage below?
Heavy rains during Centralia’s corn planting season prevented
some farmers there from planting corn.
It is now the planting season for soybeans, another of Centralia’s principal crops, and those fields
originally intended for corn are dry enough for planting. Nonetheless, even though soybean prices are
unusually high at present, the farmers will leave most of these fields empty
rather than plant them with soybeans, since ‗‗‗‗‗‗.
A.
the extensive rains have led to an increase
in the price of corn
B.
some Centralian farmers anticipate serious
financial losses due to the extremely wet spring planting season
C.
chemicals that were used to prepare the
fields for corn planting would stunt the growth of soybeans
D.
the majority of Centralia’s corn farmers were able to plant
corn as they had intended, despite the wet planting season
E.
many Centralian farmers grow both corn and
soybeans
B 与原文信息相反 those fields originally intended for corn are
dry enough for planting。原文已说这些地足够干了。
------------------------------------------------------------------------------------------------------------ GWD1-Q40:
Until mow,
only injectable vaccines against influenza have been available. Parents are reluctant to subject children to
the pain of injections, but adults, who are at risk of serious complications from influenza,
are commonly vaccinated. A new
influenza vaccine, administered painlessly in a nasal spray, is effective for
children. However, since children seldom develop serious
complications from influenza, no significant public health benefit would
result from widespread vaccination of children using the nasal spray.
Which of the following is an
assumption on which the argument depends?
A.
Any person who has received the injectable
vaccine can safely receive the nasal-spray vaccine as well.
B.
The new vaccine uses the same mechanism to
ward off influenza as jnjectable vaccines do.
C.
The injectable vaccine is affordable for all
adults.
D.
Adults do not contract influenza primarily
from children who have influenza.
E.
The nasal spray vaccine is mot effective
when administered to adults.
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发表于 2009-4-15 22:24:00
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