单选题The problem ______ success is that by the time you are rich enough to sleep late, you are so old that you always wake up early.
单选题{{B}}SECTION C NEWS BROADCAST{{/B}}
{{I}} Questions 21~22 are based on the
following news from the BBC or the VOA. At the end of the news item, you will be
given I0 seconds to answer the two questions. Now listen to the
news.{{/I}}
单选题______ my interest in formal semantics, this university is the best place to study.
单选题Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation.
单选题Which CANNOT be learned about the crash?
单选题In what way do Columbian students differ from Japanese students?
单选题We should make mental preparation for failure, because there is only
a(n) ______ number of possibilities of success.
A. infinite
B. finite
C. innumerable
D. numerous
单选题{{B}}TEXT C{{/B}} Blind people usually
possess one advantage over other people who can see: their sense of hearing is
far more acute. Sounds which most others would miss can carry a great deal of
information to a sightless person. For instance, teams of blind children can
enjoy fast-moving games of soccer with a bell inside the ball and a new
hand-held ultrasonic device to guide them. And that sound-location system could
help to build up an even more complete sound picture of a blind person's
surroundings. Bats, whose sight is poor, use a sound-location
system to help them avoid obstacles in the dark. They send out pulses of sound
waves, pitched at 50,000 cycles per second, far above the limits of the human
ear, which can hear sounds up to frequencies of about 20,000 cycles per second.
As the echoes bounce back off obstacles such as trees and walls, the bats are
able to take appropriate action. The first steps to help blind
people to see with sound are based on exactly the same principle. The sound is
emitted by an ultrasonic torch, shaped like a double-barreled version of a
normal electric torch. It works in a similar Way to a sonar u nit on a warship
or submarine. The unit’s transmitter sends out pulses of
ultrasonic waves at the same frequency as the bat, and the receiver picks up the
returning echoes. Because these are still above the frequency at which the human
ear can pick them up, the echoes are filtered through circuits which turn them
into clearly audible ' bleeps' before passing them into headphones.
This means that a person holding the torch can point it ahead of him and
‘scan’the area for obstacles over a range of about 25 ft. ff there are no return
echoes coming through the headphones, then there is nothing in the
way. If echoes do come back, then the closer the obstruction,
the faster the succession of bleeps and the deeper the pitch of each bleep. With
practice the torch could help a blind person to lead a more normal life --
without needing a constant companion to guide him. Experienced operators of the
torch system claim they can distinguish grass from bushes, trees, pests and
curbstones. But before blind people can be helped to feel really
independent, the system needs to be more streamlined. At pres ent, the
experimental ultrasonic torch requires a shoulder bag to carry the batteries,
cables for the power supplies and earphones, in addition to the torch itself.
But miniaturization of electronic equipment is making such rapid progress that
it should not be long before the whole set-up can be reproduced in a form small
enough to fit into a pair of spectacles. The transmitter and
power supplies, with all the circuitry, would be packed into the bridge-piece
above the nose. The sending and receiving sensors would be in the ' lenses'. And
the filtered bleeps would be passed on to the wearer through the earpieces, as
with present-day hearing-aid spectacles. This would mean that
scanning one’s surroundings would become instinctive. The wearer would face in
the direction he wanted to check, and lift or lower his head just as a sighted
person would.
单选题
单选题
单选题According to the news, the New York Stock Exchange ______.
单选题The energy gained from the sun can then be used during the hight to enable the necessary chemi-cal reactions to _______ in his body.
单选题
单选题He is too young ______ the old society.
A.to see
B.to have seen
C.to seeing
D.to having seen
单选题______bright was the moon that the flowers were bright as by day.
单选题
{{I}} Questions 4 to 7 are based on the
following conversation. At the end of the conversation, you will be given 20
seconds to answer the questions. Now listen to the
conversation.{{/I}}
单选题This text mainly deals with ______.
单选题His urgent letter finally brought me ______ to give money to the school.
单选题{{B}}SECTION C NEWS BROADCAST{{/B}}
{{I}} Questions 21 to 22 are based on the
following news. At the end of the news item, you will be given 10 seconds to
answer the questions. Now listen to the
news.{{/I}}
单选题The storms have resulted in the following EXCEPT______.
