stick-种田
Section B
Directions:
Complete the following passage by using
the words in the box.
Each
word can only be used once.
Note that there is one word more than
you need.
A.
accurate
F. enormously
K.
prediction
Beyond
two
or
three
days,
the
world’s
best
weather
forecasts
are
based
on
guesswork, and beyond six or seven they
are worthless.
The
Butterfly Effect is the reason. For small pieces
of weather
—
and to a global
forecaster,
small
can
mean
thunderstorms
and
snowstorms
—
any
___41___
fails
rapidly.
Errors
and
uncertainties
___42___,
gathering
upward
through
a
chain
of
unstable
features,
from
dust
devils
(
尘旋风
)
and
windstorms
up
to
continent-size
eddies
(
旋风
) ___43___ satellites can
see.
The modern weather models work
with a network of points of the order of sixty
miles apart, and even so, some ___44___
data has to be guessed, since ground stations
and
satellites
cannot
see
everywhere.
But
suppose
the
earth
could
be
covered
with
sensors spaced one foot
apart, rising at one-foot ___45___ all the way to
the top of the
atmosphere. Suppose
every sensor gives perfectly ___46___ readings of
temperature,
pressure, dampness, and
any other quantity a
meteorologist
(
气象工作者
) would want.
Exactly at
noon a(n)
___47___ powerful
computer takes
all the data
and ___48___
what will happen at each point at
12.01, then 12.02, then 12.03 …
The computer will still be unable to
predict whether Princeton, New Jersey, will
have sun or rain on a day one month
away. At noon the spaces between the sensors
will ___49___ alterations that the
computer will not know about, tiny variations from
the ___50___. By 12.01, those
alterations will already have created small errors
one
foot away. Soon the errors will
have multiplied to the ten-foot scale, and so on
up to
the size of the globe.
B. alteration
G.
initial
C. average
H. intervals
D. calculates
I.
merely
E. conceal
J. multiply
1
Keys:
41-45
KJIGH
46-50
AFDEC
Section B
Directions:
Complete the following passage by using
the words in the box.
Each
word can only be used once.
Note that there is one word more than
you need.
A. countless
B. exhausted
C.
comparison
G. relatively
H. cleared
I.
unfortunately
D. essential
J. recycled
E. estimates
F. distinctive
K. restricts
Rain forests, found in Earth’s
temperate and
tropical
(
热带的
) zones, are some
of the most biologically varied
ecosystems on the planet. All rain forests share
certain
___41___ features, including a
closed canopy, thedensevegetation of thetop
branches
that
forms
a
roof
above
the
forest
floor,
a
damp
and
warm
climate,
and
___42___
constant
temperatures throughout the year. Most of the
forest’s insect and animal life
grows
well in the canopy’s leafy and sunlit environment.
The forest’s groundcover, by
comparison, is small. Less than 2
percent of the sun’s light make
s its
way through the
canopy and the darkness
below. This darkness, along with the poor quality
of the soils,
___43___ plant growth.
Rain forests are a(n)
___44___ part of Earth’s total ecology. Huge
amounts of
water
are
absorbed
into
tree
roots
and
___45___
into
the
atmosphere
from
the
tree
leaves
through
a
process
called
transpiration
(
蒸发
).
Tree
roots
also
fix
the
soil
in
place
and
slow
the
runoff
of
rains
into
rivers
and
oceans.
Through
the
process
of
photosynthesis
(
光合作用
), rain forests absorb
more carbon dioxide and give off more
oxygen than any other ecosystem.
The
rain
forests
are
___46___
shrinking
at
a
rapid
rate
as
a
result
of
the
profitable
ventures
of
farming,
logging,
and
mining.
When
tropical
rain
forests
are
___47___
in
order
to
raise
cattle
and
crops,
the
nutrient-poor
soils
are
quickly
2
___48___. When
farmers move on to new areas, heavy rains and
baking sun leave the
land fruitless and
lifeless. Logging and mining cause similar damage
to the land and
destroy
the
territory
of
___49___
millions
of
birds,
insects
and
animals.
By
some
___50___, an area of
tropical rain forest the size of the state of
Delaware disappears
in this way every
month.
Keys:
41-45 F G K
D J
46-50 I H B A E
Section B
Directions:
Complete the
following passage by using the words in the box.
Each word
can only be used once.
Note that there
is one word more than you need.
A.
challenged
B. functions
C. solved
D.
deserves
E. mirrors
F. practical
G.
further
H. urge
I. presence
J. opposing
K.
survival
“In
wilderness is the preservation of the
world.” This is a famous saying from a
writer regarded as one of the fathers
of environmentalism. The frequency with which
it is borrowed
41
a
heated debate on environmental protection: whether
to place
wilderness at the heart of
what is to be preserved.
As John Sauven of
Greenpeace UK points out, there is a strong appeal
in images
of
the
wild,
the
untouched;
more
than
anything
else,
they
speak
of
the
nature
that
many
people
value
most
dearly.
The
42
to
leave
the
subject
of
such
images
untouched
is
strong,
and
the
danger
exploitation
brings
to
such
landscapes
is
real.
Some
of
these
wildernesses
also
perform
43
that
humans
need
—
the
rainforests,
for example,
store carbon in vast quantities.
Lee
Lane, a visiting fellow
at
the Hudson
Institute,
takes the
44
view. He
acknowledges
that
wildernesses
do
provide
useful
services,
such
as
water
conservation.
But
that
is
not,
he
argues,
a
reason
to
avoid
all
human
45
,
or
indeed
commercial
and
industrial
exploitation.
There
are
ever
more
people
on
the
Earth, and they
reasonably and rightfully want to have better
lives, rather than merely
3