单项选择题

Speaker A: Hello. May I speak to Sally, please? Speaker B:________
A.May I ask who you axe?
B.Yes. But the number is engaged.
C.Yes. This is Sally.
D.Thanks for calling.

A.May
B.Yes.
C.
C.Yes.
D.
D.Thanks
E.
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单项选择题

In describing the way a seafloor disturbance such as movement along a fault
reshapes the sea surface into a tsunami, modelers assume the sea-surface
displacement is identical to that of the ocean bottom, but direct measurements
Line of seafloor motion have never been available. Researchers presently use an
(5) idealized model of the quake: they assume that the crustal plates slip past one
another along a simple, rectangular plane. As modelers scramble to guide
tsunami survey teams immediately after an earthquake, only the orientation of
the assumed fault plane and the quake's location, magnitude and depth can be
interpreted from the seismic data alone.
(10) As all other parameters must be estimated, this first simulation frequently
underestimates inundation, which can signify that the initial tsunami height was
also understated when the single-plane fault model distributes seismic energy
over too large an area. Analyses of seismic data cannot resolve energy
distribution patterns any shorter than the seismic waves themselves, which
(15) extend for several hundred kilometers, but long after the tsunami strikes land,
modelers can work backward from records of run-up and additional earthquake
data to refine the tsunami's initial height. For example, months of aftershocks
eventually reveal patterns of seismic energy that are concentrated in regions
much smaller than the original, single-plane fault model assumed. When seismic
(20) energy is focused in a smaller area, the vertical motion of the seafloor-and
therefore the initial tsunami height-is greater. Satisfactory simulations are
difficult, but improve immeasurably scientists' ability to make better
predictions.
Propagation of the tsunami transports seismic energy away from the
(25) earthquake site through undulations of the water, just as shaking moves the
energy through the earth. At this point, the wave height is so small compared
with both the wavelength and the water depth that researchers can apply linear
wave theory, which predicts that the velocity of tsunami increases with the
depth of the water and the length of the wave. This dependence of wave speed
(30) on water depth means that refraction by bumps and grooves on the seafloor can
shift the wave's direction, especially as it travels into shallow water. In
particular, wave fronts tend to align parallel to the shoreline so that they wrap
around a protruding headland before smashing into it with greatly focused
incident energy. At the same time, each individual wave must also slow down
(35) because of the decreasing water depth, so they begin to overtake one another,
decreasing the distance between them in a process called shoaling. Refraction
and shoaling squeeze the same amount of energy into a smaller volume of water,
creating higher waves and faster currents. In the last stage of evolution,
inundation and run-up, in which a tsunami may run ashore as a breaking wave or
(40) a wall of water or a tide-like flood, the wave height is now so large that it is
difficult to assess the complicated interaction between the water and the shoreline.
The primary function of the
A.introduce a new explanation of a physical phenomenon
B.explain how a physical phenomenon is measured and described
C.illustrate the limitations of applying mathematics to complicated physical phenomena
D.indicate the direction that research into a particular physical phenomenon should take
E.clarify the differences between an old explanation of a physical phenomenon and a new model of it

A.
(10)
B.
C.
The
D.introduce
E.explain
F.illustrate
G.indicate
H.clarify
单项选择题

It has been challenging for most twentieth-century American policy-makers
to recapture the memory of the early United States, Constitution and all, as a
revolutionary force-to ascertain, in other words, the original motives of our
Line founding fathers. The argument that the war was a revolution is essentially
(5) universal among the progressives like Turner, Becker, and Jameson, who
argue that the war was fought for, or at least caused, greater democracy in the
colonies, and generally agree that the war was a true revolution, not simply a
rejection of British tyranny.
Though this may be true-wars do tend to terminate Old Orders and
(10) ancient regimes-it is hardly a singular observation regarding the American
Revolution. A more salient hypothesis is that the fight for greater democracy
spawned not so much from a desire for change as an affirmation of the existing
order. Those gaining votes and other social privileges only wished to profit from
the existing system-these were no sans culottes beheading kings and
(15) aristocrats as the Frenchmen did in their frenzied Terror and Englishmen who
desired home governance, at first seeking to preserve local autonomy and
loyalty to the King, not to Parliament.
It was only after the initial conflict that the revolutionaries slipped into the
position of demanding sovereignty. Classwise, those ruling in 1770 also held
(20) power in 1790, while the Parliament, a bicameral legislature, was replaced by
the Congress, another bicameral legislature and the King supplanted by a
President, who could very easily have maintained his position for life. This
nearly created a tradition that the head-of-state-for-life would be chosen without
the benefit of heredity, a disastrous case suffered by twentieth-century
(25) Ugandans under Idi Amin. Furthermore, only propertied white males had
suffrage, both before and after the war, and the end of slavery was not exactly
accelerated by the war, though there were a few relatively minor gains for
blacks. Meanwhile, the economic system was not altered, nor was the class
structure, except to forbid a nobility that in any case had only a nominal
(30) existence in the colonies before the war.
What the colonists sought was control to which they had already been
accustomed. Parliament was not in the colonists' 'chain of command' in 1700,
and for the House of Commons to attempt to place itself there was seen as a loss
to the colonists. Alteration was what they resisted, not what they sought; they
(35) largely felt that they were resisting an invasion of their political birthright, not
that they were breaking bold new political ground, and therefore, it would be
very convincing to argue that the war was fought as a reactionary response, not
as a radical one.
According to the passage, Turner, Becker, and Jameson have done which of the following? Ⅰ. They failed to acknowledge the colonists' desire to affirm the existing order as a principle motive behind the American Revolution. Ⅱ. They have emphasized, but not sufficiently, the concept of the American Revolution as a genuine revolution. Ⅲ. As a group they have failed to reach agreement on the root causes of th
A.Ⅰ only
B.Ⅱ only
C.Ⅰ and Ⅱ only
D.Ⅱ and Ⅲ only
E.Ⅰ,Ⅱ, and Ⅲ

A.
B.
C.
D.
According
E.Ⅰ
F.Ⅱ
G.Ⅰ
H.Ⅱ
I.Ⅰ,Ⅱ,
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