TOEFL READING PRACTICE WITH ANSWERS
TOEFL 10 (READING PASSAGE 3)
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Question
20-30
A
great deal can be learned from the actual traces of ancient human
locomotion: the footprints of early hominids. The best-known specimens are
the remarkable tracks discovered at Lactoli, Tanzania, by Mary Leaky. These
were left by small hominids around 3.6 to 3.75 million years ago, according
to potassium – argon dates of the volcanic rocks above and below this
level. These hominids walked across a stretch of moist volcanic ash, which
was subsequently turned to mud by rain, and which then set like concrete.
Examination
of he shape of the prints revealed to Mary Leakey that the feet had a raised
arch, a rounded heel, a pronounced ball, and a big toe that pointed forward.
These features, together with the weight-bearing pressure patterns,
resembled the prints of upright-walking modern humans. The pressures
exerted along the foot, together with the length of stride, which averaged
87 centimeters, indicated that the hominids had been walking slowly. In
short, all the detectable morphological features implied that the feet that
left the footprints were very little different from those of contemporary
humans.
A
detailed study has been made of the prints using photogrammetry, a
technique for obtaining measurements through photographs, which created a
drawing showing all the curves and contours of the prints. The result
emphasized that there were at least seven points of similarity with modern
bipedal prints, such as the depth of the heel impression, and the deep
imprint of the big toe. M Day and E. Wickens also took stereophotographs of
the Lactoli prints and compared them with modern prints make by men and
women in similar soil conditions. Once again, the results furnished
possible evidence of bipedalism. Footprints thus provide us not merely with
rare impressions of the soft tissue of early hominids, but also with
evidence of upright waling that in many ways is clearer than can be
obtained from the analysis of bones.
The
study of fossil footprints is not restricted to examples from such remote
periods. Hundreds of prints are known, for example, in French caves dating
from the end of the last ices age, approximately 10,000 years ago. Research
by Leon Pales, using detailed silicon resin molds of footprints mostly made
by bare feet, has provided information about this period.
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20
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What does the
passage mainly discuss?
(A) The
analysis of footprint fossils
(B) Accurate
dating of hominid remains
(C) The career
of Mary Leakey
(D) Behavioral
patterns of early humans
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21
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The word "remarkable" in line 2 is closest in meaning to
(A) extraordinary
(B) enormous
(C) various
(D) orderly
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22
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The age of the Laetoli footprints was estimated
by
(A) testing the fossilized bones of the hominids
(B) studying the shape of the footprints
(C) analyzing nearly rock layers
(D) comparison with footprints from other
locations
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23
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It can be inferred that the footprints in
volcanic ash at Laetoli were well preserved because
(A) they were buried by a second volcanic
eruption
(B) the ash contained potassium anti
argon
(C) the ash was still warm from the
volcanic cruptions
(D) suitable conditions caused the ash 10
harden
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24
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Which or the following is NOT mentioned
as a characteristic of the feet in Mary Leakey's fossil find?
(A) The shape or the heel
(B) The number of toes
(C) A raised arch
(D) A pronounced ball
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25
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The word "exerted" in line 11 is closest in meaning to
(A) influenced
(B) applied
(C) returned
(D) lessened
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26
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The figure of 87 centimeters mentioned in
line 1 2 refers to the size of the
(A) objects carried by the hominids
(B) steps taken by the hominids
(C) hominids bodies
(D) hominids feet
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27
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Why does the author mention the "heel
impression" in line 19?
(A) To emphasize the size of the hominids
foot
(B) To speculate on a possible injury the
hominid had suffered
(C) To give an example of similarity to modern
human footprints
(D) To indicate the weight of early
hominids
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28
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The
word "restricted" in
line 26 is closest in meaning to
(A)
limited
(B)
improved
(C)
continued
(D)
succeeded
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29
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What
can be inferred about the footprints found in French caves mentioned in the
last paragraph?
(A)They
show more detail than the Laetoli prints.
(B)They
are of more recent origin than the Laetoli prints.
(C)They
are not as informative as the Laetoli prints.
(D)They
are more difficult to study than the Laetoli prints
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30
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Which
of the following terms is defined in the passage?
(A)
"hominids" (line 3)
(B)
"arch" (line 9)
(C)
"photogrammetry" (line 16)
(D)
"silicon resin molds"(line 29)
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ANSWER KEY
20. A
21. A
22. C
23. D
24. B
25. B
26. B
27. C
28. A
29. B
30. C
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