Every drop of water in the ocean, even in the deepest parts, responds to the forces
that create the tides. No other force that affects the sea is so
strong. Compared with the
tides, the waves created by the wind are surface movements felt no
more than a
Line hundred fathoms below the surface. The currents also seldom
involve more than the
(5) upper several hundred fathoms despite their impressive sweep.
The tides are a response of the
waters of the ocean to the pull of the Moon and the
more distant Sun. In theory, there is a gravitational attraction
between the water and
even the outermost star of the universe. In reality, however, the
pull of remote stars is
so slight as to be obliterated by the control of the Moon and, to
a lesser extent, the Sun.
(10) Just as the Moon rises later each day by fifty minutes, on the
average, so, in most
places, the time of high tide is correspondingly later each day.
And as the Moon waxes
and wanes in its monthly cycle, so the height of the tide varies.
The tidal movements
are strongest when the Moon is a sliver in the sky, and when it is
full. These are the
highest flood tides and the lowest ebb tides of the lunar month
and are called the spring
(15) tides. At these times the Sun, Moon, and Earth are nearly in line
and the pull of the two
heavenly bodies is added together to bring the water high on the
beaches, to send its
surf upward against the sea cliffs, and to draw a high tide
into the harbors. Twice each
month, at the quarters of the Moon, when the Sun, Moon, and Earth
lie at the apexes of
a triangular configuration and the pull of the Sun and Moon are
opposed, the moderate
(20) tidal movements called neap tides occur. Then the difference
between high and low
water is less than at any other time during the month.
Questions
41. What is the main point of the first paragraph?
(A) The waves created by ocean currents
are very large.
(B) Despite the strength of the
wind, it only moves surface water.
(C) Deep ocean water is seldom
affected by forces that move water.
(D) The tides are the most
powerful force to affect the movement of ocean water.
42. The word “felt” in line 3 is closest in
meaning to
(A) based
(B) dropped
(C) detected
(D) explored
43. The words “In reality” in line 8 are closest in meaning to
(A) surprisingly
(B) actually
(C) characteristically
(D) similarly
44. It can be inferred from the passage that the most important
factor in determining
how much gravitational effect one object in space has on the tides
is
(A) size
(B) distance
(C) temperature
(D) density
45. The word “correspondingly” in line 11 is closest in meaning to
(A) unpredictably
(B) interestingly
(C) similarly
(D) unusually
46. What is the cause of spring tides?
(A) Seasonal change in the
weather
(B) The gravitational pull of
the Sun and the Moon when nearly in line
with the
Earth
(C) The Earth's movement around
the Sun
(D) The triangular arrangement
of the Earth, Sun, and Moon
47. Which of the following pictures best represents the position
of the Sun, Moon,
and Earth during spring tides?
(A) In curve position
(B) In parabola position
(C) In hyperbola position
(D)In straight line position
48. The word “configuration” in line 19 is closest in meaning to
(A)
unit
(B) center
(C) surface
(D) arrangement
49. Neap tides occur when
(A) the Sun counteracts the
Moon's gravitational attraction
(B) the Moon is full
(C) the Moon is farthest from
the Sun
(D) waves created by the wind
combine with the Moon's gravitational attraction
50. According to the passage, all of the following statements
about tides are
true EXCEPT:
(A) The time of high tide is
later each day.
(B) Tides have a greater effect
on the sea than waves do.
(C) The strongest tides occur
at the quarters of the Moon.
(D) Neap tides are more
moderate than spring tides.
Please tally your
answer with the below provided answers and then comment here how much you got!
Answers
41.
D 42.
C 43. B 44. B 45. C 46.
B 47. D 48. D 49. A 50. C
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