COMPREHENSION/12
QUESTIONS AND
ANSWERS (A+)
Your heart's mitral valve does an awfully big job.
Letting blood from the left atrium of the heart into
the left ventricle without losing a drop is one of the
toughest tasks in the circulatory system. In fact, if
the system was suddenly opened at that point, the
force of the valve closing would send blood five
feet in the air.
In this passage, the author's purpose is to
A. describe the circulatory system
B. convince readers of the stress on the mitral
valve
C. inform readers of defects in the mitral valve
D. minimize the importance of the mitral valve -
√Answer>B. convince readers of the stress on the
mitral valve
, Quiz :Riding the mail plane is a low-budget way to
visit America's largest national park - Wrangell St.
Elias - 13 million acres of scenic beauty. Copper
first drew prospectors to this part of Alaska. From
1991 to 1938, the Kennicott mine produced 200
million tons of it. Now a mecca for tourists, the
town of Kennicott was abadones to the ghosts
when the copper ran out.
According to the passage, which of the following
illustrates the correct sequence of events?
A. copper drew prospectors, copper ran out, town
abandoned, tourist attraction
B. copper crew prospectors, tourist attraction,
copper ran out, town abandoned
C. copper drew prospectors, copper ran out,
tourist attraction, town abandoned
D. copper drew prospectors, tourist attraction,
town abandoned, copper ran out - √Answer>A.
copper drew prospectors, copper ran out, town
abandoned, tourist attraction
Quiz :Physicists seek out those features of nature
that are simple and universal. The secret of their
success is not so much a matter of finding the
answers as it is asking the right questions. The