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1.The archaeologist enjoyed the ------- life she led while gathering artifacts; she never stayed at any one site long enough to get bored.
(A) stealthy
(B) nomadic
(C) clamorous
(D) indiscreet
(E) rustic
2.Scientists are studying the birth and growth of thunderstorms to discover what causes the difference between showers that enable crops to ------- and ------- storms that cause floods and erosions.
(A) flourish . . violent
(B) wither . . damaging
(C) grow . . harmless
(D) parch . . severe
(E) multiply . . essential
3.The actor’s ------- decline in popularity was as striking and unexpected as his ------- rise to prominence had been.
(A) sudden . . meteoric
(B) gradual . . equivocal
(C) precipitous . . obscure
(D) dazzling . . secret
(E) inevitable . . unpredictable
4.Many of today’s physicians and patients are ------- high technology, captivated by computer-designed drugs and laser surgery.
(A) nervous about
(B) defensive about
(C) tolerant of
(D) enamored of
(E) overwhelmed by
参考答案及解析：
1.The correct answer is B
Explanation
The archaeologist “never stayed at any one site long enough to get bored.” Her life can be described as “nomadic” or characterized by moving from place to place.
2.The correct answer is A
Explanation
A shower is gentle rain that waters crops, making them “flourish.” In contrast, the deluge of rain in a “violent” storm may damage crops and soil.
3.The correct answer is A
Explanation
Choice (A) is correct. We know that “striking and unexpected” describes both the actor’s rise and his decline; “sudden” fits with this description, as does “meteoric,” which means suddenly or temporarily brilliant.
4.The correct answer is D
Explanation
The comma indicates that the second clause of the sentence will support or restate the first clause. Only the term “enamored” reinforces the notion that doctors and their patients are “captivated,” or charmed, by “high technology” such as “computer-designed drugs and laser surgery.”