综合类A级练习题及答案：词汇选项commercial
1.We saw a lot of commercial buildings in Chicago.
A condemned B razed C business D vacant
2.Salt has been a respected commodity for much of recorded time.
A flavoring B preservative C remedy for illnes D article of trade
3.Pure feldspar is a colorless， transparent mineral， but impurities commonly make it opaque and colorful.
A truly B rapidly C periodically D frequently
4.In 1925 Clarence Darrow competently opposed William Jennings Bryan at the renowned Scopes’ “Monkey Trial”.
A adeptly B maliciously C privately D rashly
5.The Olympic Games attempt to transcend national interests and bring together the best international athletes in a spirit of friendly competition and peace.
A debate B celebration C instruction D rivalry
答案：1.C commercial adj. 商业的， 贸易的 (business， mercantile)/homespun adj. 朴素的 (simple)/vacant adj. 未被占用的 (empty， uninhabited)/razed adj. 被夷为平地的 (leveled)
2.D commodity n. 商品；日用品 (article of trade， goods)/remedy n. 补救；治疗法 (treatment， redress)/preservative n. 防腐剂/flavoring n. 调味品， 调料 (seasoning)
3.D commonly adv. 通常地 (frequently， usually)/transparent adj. 透明的 (seethrough)/feldspar n. 【矿】长石 (crystalline mineral rock)/opaque adj. 不透明的 (nontransparent)/periodically adv. 定期地 (intermittently)
4.A competently adv. 充分地 (adeptly， sufficiently)/adeptly adv. 熟练地 (efficiently， skillfully)/maliciously adv. 不怀好意地 (malevolently， wickedly)/rashly adv. 轻率地 (brashly， incautiously)
5.D competition n. 竞争 (rivalry， contention)/athlete n. 运动员 (sportsman)/rivalry. 竞争(competition)； 敌对状态