1.Because of its intimacy, radio is usually more than just a medium; it is _________.
[A]firm
[B]company
[C]corporation
[D]enterprise
2.However, growth in the fabricated metals industry was able to _________ some of the decline in the iron and steel industry.
[A]overturn
[B]overtake
[C]offset
[D]oppress
3.The Timber rattlesnake is now on the endangered species list, and is extinct in two eastern states in which it once _________.
[A]thrived
[B]swelled
[C]prospered
[D]flourished
4.Using extremely different decorating schemes in adjoining rooms may result in _________ and lack of unity in style.
[A]conflict
[B]confrontation
[C]disturbance
[D]disharmony
5.It is naive to expect that any society can resolve all the social problems it is faced with _________,
[A]for long
[B]in and out
[C]once for all
[D]by nature
参考答案：1 B 2 C 3 A 4 D 5 C
1.The future of this company is _________: many of its talented employees are flowing into more profitable net-based businesses.
[A]at odds
[B]in trouble
[C]in vain
[D]at stake
2.Whoever formulated the theory of the origin of the universe, it is just _________ and needs proving.
[A]spontaneous
[B]hypothetical
[C]intuitive
[D]empirical
3.The introduction of gunpowder gradually made the bow and arrow _________, particularly in Western Europe.
[A]obscure
[B]obsolete
[C]optional
[D]overlapping
4.For three quarters of its span on Earth, life evolved almost _________ as microorganisms.
[A]precisely
[B]instantly
[C]initially
[D]exclusively
5.The authors of the United States Constitution attempted to establish an effective national government while preserving _________ for the states and liberty for individuals.
[A]autonomy
[B]dignity
[C]monopoly
[D]stabilit
参考答案：1 D 2 B 3 B 4 D 5 A
