词汇选项题：
1．Since the Great Depression, the United States government has protected farmers from damaging drops in grain prices.
A. slight B. surprising C. sudden D. harmful
2．Cement was seldom used in building the Middle Ages.
A. finally B. rarely C. originally D. practically
3. As there was a power cut in the hospital, the surgeon had to cancel the operation.
A. call for B. call on C. call off D. call out
4. The doctor soon made the worried patient feel comfortable.
A. at ease B. in private C. at rest D. in peace
5.long before the concert began, big crowds of pop fans had assembled in the stadium.
A. concentrated B. resembled C. gathered D. dismiss
6. The train came to an abrupt stop, making us wonder where we were.
A. slow B.noisy C. sudden D. jumpy
7. Security officials say that computer crime is easy to accomplish and hard to detect.
A. explain B. plan C. uncover D. ignore
8. The boy was seriously wounded in the accident.
A. damaged B. injured C. ill D. bad
9. There is always excitement at the Olympic Games when an athlete breaks a previous record of performance.
A. beats B. matches C. maintains D. announces
10. A limited number of books on this subject are in the library.
A. little B. small C. tiny D. low
11. They had a far better yield than any other farm miles around this year.
A. goods B. soil C. climate D. harvest
12. The football team, for the most part, were confident of winning the match.
A. mostly B. partly C. only D. really
13. The city has decided to do away with all the old buildings in its center.
A. get rid of B. set up C. repair D. paint
14. Foreign money can be converted at this bank.
A. altered B. changed C. bought D. sold
15. Fruits such as applies and oranges are very beneficial, and may be eaten at any time.
A. normal B. healthy C. appropriate D. proper
参考答案：
1. D. 依构词法：划线词的前部分是 damage（破坏），即damaging是动词damage的分词，所以推测该词义大概是“破坏的” , harmful是“破坏的”，因此harmful是答案。
2． B. seldom是常见词汇，该词义是“很少地” .而备选答案中rarely也是常见的否定副词，是“很少地”。finally是“最后，最终”， originally是“原来，最初” ， practically是“实际上”。
3. C. call off取消; call on 拜访; 号召；呼吁; call for要求, 提倡; call out出动, 唤起, 大声叫唤。
4. A. at rest 安眠, 长眠, 静止; at ease安逸, 自由自在; in private 私下, 秘密地; in peace安祥地。
5. C. A，C和D都属常见词汇，语义分别为“（注意力）集中”，“集合”和“解散”，B是“像，类似”，assemble和 gather（集合）是近义词。
6. C. abrupt是“突然的”。备选答案中只有C是“突然的”。 D是“跳动的”。
7. C. detect v.察觉, 发觉, 侦查, 探测， detect 和uncover（揭露）词义最接近。
8. B. injure （vt. 伤害）和wound用法接近，都指身体上受到的伤害。 damage（该词用于物品） vt.损害，损坏。
9. A. Break是“打破, 违犯, 折断,超过”，而被选项中只有A有“打”的含义，所以判断beat是答案。另外，maintain，announce和match都是常见词，基本含义分别是“保持”，“宣布”和“比得上”。
10. B. limited的含义是“有限的”，前三个被选项的语义相近，都有“小的”的含义（low是“低的”）。limited后是number，而number是可数名词。small修饰可数名词，little修饰不可数名词， 而tiny的语义是“微小的”，一般指体积。所以答案是B.
11. D. 在该句中yield 是用作名词（因为该词的前面有不定冠词a），能与不定冠词a搭配使用的被选项只有C和D（气候，倾向， 风气，如：a mild climate温和的气候）。再借助句子中其他特征词farm（农场），判断harvest“收成”是答案。
12. A. 借助该介词短语中的核心词形容词most和名词 part，判断该短语与“大多数有关”，所以A（大多数的）是答案。
13. A. do away with是“去掉”, 该短语与get rid of（摆脱， 去除）是语义相近的短语， set up是“建立”， repair是“修理”， paint 是“描绘”。
14. B. bought和 sold 分别是“买”和“卖”， change是“兑换”，其语义与句中的convert一致，alter是“改变”。
15. B. appropriate和 proper 是近义词，都是“合适的”，因此相互排除。normal 是“正常的”，healthy是“健康的”与beneficial（有益于健康的）是近义词。