Soal Latihan dan Jawaban Reading Comprehension 45
The observation of the skies has played a special part in the lives and cultures of
peoples since the earliest of times. Evidence obtained from a site known as the Hole
in the Rock, in Papago Park in Phoenix, Arizona, indicates that it might have been
used as an observatory by a prehistoric people known as the Hohokam.
(5) The physical attributes of the site allow its use as a natural calendar/clock. The
“hole” at Hole in the Rock is formed by two large overhanging rocks coming
together at a point, creating a shelter with an opening large enough for several
persons to pass through. The northeast-facing overhang has a smaller opening in its
roof. It is this smaller hole that produces the attributes that may have been used as a
(10) calendar clock.
Because of its location in the shelter’s roof, a beam of sunlight can pass through
this second hole and cast a spot onto the shelter’s wall and floor. This spot of light
travels from west to east as the sun moves across the sky. It also moves from north
to south and back again as the Earth travels around the Sun. the west-to-east
(15) movement could have been used to establish a daily clock, much like a sundial,
while the north-to-south movement could have been used to establish a seasonal
The spot first appears and starts down the surface of the wall of the shelter at
different times of the morning depending on the time of the year. The spot grows in
(20) size from its first appearance until its maximum size is achieved roughly at midday.
It then continues its downward movement until it reaches a point where it jumps to
the floor of the shelter. As the Sun continues to move to the west, the spot continues
to move across the shelter floor and down the butte, or hill, toward a group of small
boulders. If a person is seated on a certain one of these rocks as the spot reaches it,
(25) the Sun can be viewed through the calendar hole. This occurs at different times in
the afternoon depending on the time of year.
Reading Comprehension 45
Rock formations of Arizona
A site used by ancient people to measure time
The movement of the Earth around the Sun
Observations of the stars by ancient people
Its movement is affected by the position of the Sun.
It is caused by sunlight passing through a hole.
It movement could have been used to estimate the time of day.
It travels across the roof of the shelter.
The speed with which the spot of light moves
The movement of the spot of light from north to south
The size of the sport of light at midday
The movement of the spot of light from west to east
The boulders are located below the rock shelter.
The spot of light is largest when it first appears.
After it passes the boulders, the spot of light disappears.
The person seated on the rock cannot see the shelter.