[单项选择]Vitamins do not provide energy, nor do they construct or build any part of the body. They are needed for ______ foods into energy and body maintenance.
A. transforming
B. transferring
C. altering
D. shifting

[单项选择]

Passage Two
Among the question of design, construction, and operation remaining to be solved before commercial airliners travel faster than sound is the difficult problem of sonic boom (声震) , the explosive sound generated when an object moves through the air at supersonic speed(超音速).
A sound is a pressure disturbance: a sonic boom, like other explosive sounds, is the result of an abrupt change in pressure. An airplane in subsonic flight produces weak changed in pressure, but because these disturbances travel at the speed of sound, they move faster than the airplane and stay in front of it. In effect, these disturbances warn the air to get out of the way, and the an does just jet, however, gets ahead of its own pressure disturbances. Consequently a wave of suddenly com pressed air--a shock wave--builds up and is thrown off like the wave ;hat spreads from the bow of a speedboat.
Can sonic booms be eliminated The answer is a categorical negative--they
A. explosive
B. caused by compressed tar
C. a pressure disturbance
D. shock wave

[单项选择]There (is) much in our life (which) we do nor control (and we are) not even responsible (for).
A. is
B. which
C. and we are
D. for

[单项选择]By ______ we mean language communication is constrained by neither time nor space.


A. arbitrariness
B. displacement
C. creativity
D. cultural transmission

[单项选择](Neither) rain (nor) sleet nor (keep) the mailman from his (appointed) rounds.
A. Neither
B. nor
C. keep
D. appointed

[单项选择](Neither) rain (nor) sleet nor snow (keep) the mailman from his (appointed) rounds.
A. Neither
B. nor
C. keep
D. appointed

[单项选择]Solar energy causes


A. less pollution than oil
B. more pollution than oil
C. the same pollution as oil
D. financial problem

[单项选择]SQUANDER : ENERGY ::
A. gamble : money
B. accomplish : attainment
C. shelter : security
D. aggress : territory
E. malinger : duty

[单项选择]Neither you nor he （）right.
A. are
B. would
C. am
D. is

[单项选择]Neither he nor I （） from Canad
A. We are from Australia.A. is
B. are
C. am
D. be

[单项选择]Neither you nor he（）to blame.
A. is
B. be
C. are
D. am

[单项选择]Which of the followings is neither expressed nor implied in the passage as being a threat posed by mall to wildlife preservation


A. The discharge of chemical wastes into streams as a result of industrial development.
B. Large - scale housing development.
C. Poor coordination of international efforts at park and refuge management.
D. Introduction of species into environments.

[单项选择]Which of the following does NOT characterize a normal patent


A. some extension of life span
B. some duration of validity
C. some form of reward
D. some kind of monopoly