CliffsTestPrep TOEFL CBT
PRACTICE TEST 1
READING PASSAGE 1
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 2
|
Scientists have experimented with
a new procedure for alleviating
the damage caused by strokes. Strokes are frequently caused by a blood clot
lodging in the tree of arteries in the head, choking the flow of blood. Some brain
cells die as a direct result of the stroke, but others also die over several
hours because the proteins spilling out of the first cells that die trigger a
chemical chain reaction that kills the neighboring cells.
The current method of reducing
the amount of damage is to give a clot dissolver, known as TPA, as soon as
possible. But generally TPA is not given to the patient until he or she reaches
the hospital, and it still does not immediately stop the damage.
The new technology, still in the
research stage, involves chilling the area or the entire patient. It is
already known that when an organ is cooled, damage is slowed. This is why
sometimes a person who has fallen into an icy pond is not significantly
harmed after being warmed up again. The biggest issue is the method of
cooling. It is not feasible to chill the head alone. Doctors have chilled the
entire body by wrapping the patient in cold materials, but extreme shivering was a
problem.
The new
idea is to cool the patient from the inside out. Several companies are
studying the use of cold-tipped catheters, inserted into the artery in the
groin and threaded up to the inferior vena cava, which is a large vein that supplies
blood to the abdomen. The catheter is expected to cool the blood that flows
over it, thus allowing cooler blood to reach the area of the stroke damage.
It is not expected that the
cooling will be substantial,
but even a slight decrease in temperature is thought to be helpful. In effect,
the patient is given a kind of forced hypothermia. And doctors believe it is important
to keep the patient awake so that they can converse with the patient in order
to ascertain mental condition.
Studies continue to determine the
most effective and least damaging means of coolingthe patient in order to
reduce this damage.
|
12
|
The word alleviating in the first
sentence is closest in meaning to
A. reducing
B. devastating
C. causing
D. increasing
|
19
|
In the passage, the author implies that
A. the internal chilling process has not
been proven yet.
B. drug therapy properly addresses all
the problems of stroke victims.
C. chilling the head alone is viable.
D. nothing is likely to reduce the chain
reaction problem. |
13
|
According to the passage, the method
of chilling from the inside out is being considered for all of the following reasons except
A.
it is not
possible to chill the head
alone.
B.
chilling
from the inside out avoids
shaking.
C.
cold
dissolves blood clots
D.
drugs are not helpful in stopping
the chain reaction. |
20
|
The author describes a person falling
into cold water in order to
A. evoke sympathy.
B. show that cooling a body does not
necessarily harm it.
C. show how one who falls into cold
water could also benefit from the internal chilling research.
D. describe the warming process.
|
14
|
According
to the passage, what causes a
stroke?
A. A blood clot sticking in an area of the
brain
B. Low blood flow
C. Hot blood
D. A patient choking on food
|
21
|
The
author implies that
A. the catheter is moved all the way to
the brain.
B. the artery in the leg connects directly to
the brain.
C. the artery in the leg connects to the
vena cava.
D. the goal is to chill the brain directly
with the catheter. |
15
|
The word shivering in the last
sentence
of the third paragraph is closest in meaning to
A.
shaking
B.
delirious
C.
sick
D.
dying
|
22
|
When the author states that the catheter
is threaded to the vena cava, the author means that
A. the catheter is sewn to the vena
cava.
B. the catheter is inserted into the
body at the vena cava area.
C. the catheter becomes attached to
the vena cava because of the cold.
D. the doctor moves the catheter
slowly through the artery to the vena cava. |
16
|
According
to the passage, all of the
following are true except that
A. some cells die immediately when a person
has a stroke, and others die later.
B. cells die only as a direct result of the
stroke.
C. the protein from dead cells kills other
cells.
D. TPA is effective in removing blood clots.
|
23
|
The
author implies that hypothermia is
caused by
A. the body becoming cold.
B. a stroke.
C. the body becoming warm.
D. drugs.
|
17
|
What is the passage mainly about?
A. Causes and effects of strokes
B. New pharmaceutical methods for reducing
stroke damage that are being researched
C. A new method of cooling the body to reduce
stroke damage that is being researched
D. The dangers of cooling the body
|
24
|
According to the passage, doctors prefer
to keep the patient awake in order to
A.
monitor
vital signs with equipment.
B.
watch the
patient.
C.
talk to the
patient.
D.
find out if
the procedure is painful.
|
18
|
The
word substantial in the fifth
paragraph is closest in meaning to
A. considerable
B. slight
C. unsubstantiated
D. effective
|
|
|
ANSWER
KEY
12
|
A
|
reducing. Generally the word means “avoiding” or
“making not necessary.” Here, the closest definition is reducing.
|
13
|
C
|
cold dissolves blood clots. Applying cold has certain benefits, but
nowhere is it stated that it dissolves the blood clots. |
14
|
A
|
A blood clot sticking in an area of the brain.
|
15
|
A
|
shaking. To shiver is to shake with cold.
|
16
|
B
|
cells die only as a direct result of the stroke. This is really the opposite of
the first answer choice, which is the correct statement. |
17
|
C
|
A new method of cooling the body to reduce
stroke damage that is being
researched. B is incorrect because it refers to use of drugs. |
18
|
A
|
considerable. Both words
mean “to a great degree.”
|
19
|
A
|
the internal chilling process has not been
proven yet. The other answer
choices are statements made in the reading passage. |
20
|
B
|
show that cooling a body does not necessarily harm it
|
21
|
C
|
the artery in the leg connects to the vena
cava. The passage indicates that
the catheter is inserted only to the vena cava. |
22
|
D
|
the doctor moves the catheter slowly through the artery to the vena
cava.
The author explains that the catheter is inserted in the groin area and moved to the vena cava area. Threaded just means moved slowly along the vein towards the destination. |
23
|
A
|
the body becoming cold. Hypothermia means the condition of the body
when exposed to extreme cold. |
24
|
C
|
talk to the patient.
|
No comments:
Post a Comment
thank you for visiting my blog and for your nice comments