CliffsTestPrep TOEFL CBT
PRACTICE TEST 3
READING SECTION (4)
Directions: This
section measures your ability to read and understand written English similar
to that which one may expect in a college or university setting. Read each passage and answer the questions based on what is stated or implied in the passage. Circle or mark the correct answer in the book or write it on a separate piece of paper. |
Passage 4
|
Many people suffer from an ailment
of the gallbladder, which occurs when stones form within the organ.
The gallbladder is a small sac in the upper-right section of the abdomen,
beneath the liver and near the pancreas. Its function is to store bile, which
is produced by the liver to help digest fat and absorb vitamins and minerals.
Bile consists mainly of water, cholesterol, lipids (fats), bile salts,
which are natural detergents that break up fat, and bilirubin, which
is a pigment that gives bile its greenish-yellow color.
Gallstones form when the
cholesterol and the bilirubin form crystals, which then fuse in the gallbladder
to form the stones. They range in size from tiny specks the size of grains of
sand to stones as large as golf balls, although most are quite small.
Sometimes the crystals accumulate but do not form stones. But even then, they
form a sludge that causes indigestion and discomfort, which is not as
serious as the symptoms that stones cause.
The great majority of gallstones
are made of cholesterol, but some consist of bile pigment. The former are
produced when the bile is too rich in cholesterol or the gallbladder is not
functioning properly, and they generally occur in people within the risk
factors.
Gallstones can irritate
the lining of the gallbladder, causing chronic inflammation and infection,
resulting in pain in the abdominal area. An acute gallstone attack occurs
when the gallbladder contracts while squeezing its bile through the cystic
duct, and one or more stones lodge in the duct. The muscles in the duct wall
then contract in an attempt to dislodge the stone, causing severe
pain. If they are not dislodged, the bile backs up into the liver and
eventually the bloodstream.
Risk groups include people who
are overweight; people who fast habitually or are on long-term extremely
low-calorie diets; pregnant women; people with diabetes; females between the
ages of 20 and 60; native American men or Pima Indian women of Arizona; and
Mexican-American men or women. As anybody ages, the chance of gallstones
increases, with 10 percent of all men and 20 percent of women having gall
stones by age 60.
Gallstones are diagnosed with an
ultrasound, which is a device that transmits sound waves into the body and
returns a depiction of the organ. Even patients with gallstones
generally do not need treatment unless the stones are causing chronic
symptoms. Large stones can be crushed through a procedure called shock wave
lithotripsy, but the fragments then must exit the body, which can be
uncomfortable. The most common treatment is to remove the gallbladder
entirely. The body gets along quite well with no gallbladder because it is
simply a storage area. The manufacture of bile in the liver goes on just the
same, although there is no bile present in the event it is needed quickly.
For that reason, patients are urged to avoid excessively fatty foods
|
31
|
The word ailment
in the first sentence is closest in meaning to
A.
organ.
B.
disorder.
C.
enlargement.
D.
loss.
|
39
|
The word irritate
in the fourth paragraph is closest in meaning to
A.
affect.
B.
inflame.
C.
treat.
D.
result.
|
32
|
The word which in the first sentence
refers to
A.
people.
B.
ailment.
C.
suffer.
D.
stone.
|
40
|
The word dislodge in the fourth
paragraph is closest in meaning to
A. treat.
B. displace.
C. expand.
D. entrench.
|
33
|
The
author implies in the first paragraph that sludge is similar to
A.
stones.
B.
mud.
C.
liquid.
D.
medicine.
|
41
|
The
author implies that most severe attacks occur when a stone becomes stuck in
the
A. gallbladder.
B. cystic duct.
C. sludge.
D. liver.
|
34
|
The word fuse in the second
paragraph is closest in meaning to
A.
crystallize.
B.
join.
C.
separate.
D.
collapse.
|
42
|
One common cause of gallstones is
A. excessive dieting.
B. eating too many vegetables.
C. excessive eating.
D. eating too much fruit.
|
35
|
The
author implies in the first paragraph that bile salts are similar to
A.
soap.
B.
oil.
C.
fat.
D.
stones.
|
43
|
All
of the following people are potentially at high risk of getting gallstones
except
A. a woman who is pregnant.
B. a man of Pima Indian descent.
C. a person over 55.
D. a Mexican-American woman.
|
36
|
The author implies in the first paragraph
that bilirubin is similar to
A. paint.
B. bile.
C. soap.
D. cholesterol.
|
44
|
The word depiction in the last
paragraph is closest in meaning to
A. illustration.
B. diagnosis.
C. wave.
D. stone
|
37
|
The
author indicates that crystals of cholesterol and bilirubin that do not fuse
cause
A. severe pain.
B. indigestion.
C. chronic attacks.
D. crystallization.
|
45
|
The
word it in the last paragraph refers to
A.
body.
B.
gallbladder.
C.
stone.
D.
treatment.
|
38
|
The author states that most gallstones are
caused by
A.
cholesterol-rich
bile or a malfunctioning gallbladder.
B.
overabundance
of bile pigment.
C.
sludge
D.
eating fatty
foods.
|
|
|
ANSWER
KEY
31
|
B
|
disorder.
|
32
|
B
|
ailment. If you
look back at what could be substituted for which in a sentence by
itself, this is the logical answer.
|
33
|
B
|
mud.
|
34
|
B
|
join.
|
35
|
A
|
soap. This is
explained in the first paragraph, which indicates that bile salts are
detergents.
|
36
|
A
|
paint. This is
explained in the first paragraph, where the word which indicates that
it is defining the word.
|
37
|
B
|
indigestion. This is
explained in the first paragraph.
|
38
|
A
|
cholesterol-rich
bile or a malfunctioning gallbladder.
|
39
|
B
|
inflame.
|
40
|
B
|
displace
|
41
|
B
|
cystic duct. This is
explained in the fourth paragraph.
|
42
|
A
|
excessive
dieting.
|
43
|
B
|
a man of Pima Indian
descent.
|
44
|
A
|
illustration.
|
45
|
B
|
gallbladder.
|
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